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CN-121992957-A - Security protection device for building construction and installation method thereof

CN121992957ACN 121992957 ACN121992957 ACN 121992957ACN-121992957-A

Abstract

The invention relates to a security device for building construction and an installation method thereof. The security device comprises an upper arm, a lower arm, an upper hanging piece and a lower hanging piece, wherein the upper hanging piece and the lower hanging piece are arranged on the upper arm and the lower arm, the upper arm and the lower arm are respectively connected to a U-shaped hinging seat in a rotating mode, the upper arm and the lower arm can be opened and closed relatively, a self-locking mechanism is arranged on the U-shaped hinging seat and used for carrying out self-locking positioning on the opening and closing angle of the lower arm after the lower arm rotates relative to the upper arm, the upper arm and the lower arm are respectively rectangular tubes, a core tube is fixed in a tube cavity of each rectangular tube, an auxiliary arm is sleeved on the outer wall of each core tube in a sliding mode, an outer adjusting groove is formed in the upper arm along the length direction of each upper arm, an inner adjusting groove is formed in the core tube along the length direction of each core tube, the inner adjusting groove and the outer adjusting groove are overlapped inwards and outwards, the lower hanging piece is hinged to the tail end of the other auxiliary arm, and a second hanging rod is slidably matched to the position of each upper hanging piece at the tail end of the auxiliary arm, and the second hanging rod is slidably matched with the second hanging rod at the position of the inner adjusting groove and the outer adjusting groove.

Inventors

  • QIN FENGBAO
  • WANG YONGQI
  • ZHANG RENBIN
  • LIU SHIQI
  • HUANG GANG

Assignees

  • 中国华西企业有限公司

Dates

Publication Date
20260508
Application Date
20260320

Claims (10)

  1. 1. The utility model provides a building construction is with security protection device which characterized in that includes: The device comprises an uplink arm (1) and a downlink arm (2), wherein a first U-shaped hinging seat (5) is fixed at one end of the uplink arm (1), and one end of the downlink arm (2) is rotatably connected to the first U-shaped hinging seat (5) so that the uplink arm (1) and the downlink arm (2) are arranged in an opening and closing mode; The self-locking mechanism (6) is arranged on the first U-shaped hinging seat (5) and used for locking and positioning the opening and closing angle of the downlink arm (2) after rotating relative to the uplink arm (1); An uplink hanging piece (3) arranged on the uplink arm (1); a descending hanger (4) arranged on the descending arm (2); the ascending arm (1) is a rectangular tube, a first core tube (7) is fixed in the tube cavity of the ascending arm, a first auxiliary arm (8) is sleeved on the outer wall of the first core tube (7) in a sliding manner, and the first auxiliary arm (8) can stretch along the first core tube (7); The uplink arm (1) is provided with an outer adjusting groove (9) along the length direction of the uplink arm, the first core tube (7) is provided with an inner adjusting groove (10) along the length direction of the first core tube, and the inner adjusting groove (10) and the outer adjusting groove (9) are arranged in an inner-outer overlapping mode; The uplink hanging piece (3) comprises a first hanging rod (31) hinged to the tail end of the first auxiliary arm (8), and a second hanging rod (32) in sliding fit with the superposition position of the inner adjusting groove (10) and the outer adjusting groove (9), wherein the second hanging rod (32) can slide along the inner adjusting groove (10) and the outer adjusting groove (9) to adjust positions; The descending arm (2) is a rectangular tube, a second core tube (11) is fixed in the tube cavity of the descending arm, a second auxiliary arm (12) is sleeved on the outer wall of the second core tube (11) in a sliding mode, the second auxiliary arm (12) can stretch and retract along the second core tube (11), and the descending hanging piece (4) is hinged to the tail end of the second auxiliary arm (12); Hooks (19) are fixedly arranged on the outer walls of the uplink arm (1), the first auxiliary arm (8), the downlink arm (2) and the second auxiliary arm (12), and the hooks (19) located on the uplink side face opposite to the hooks (19) located on the downlink side.
  2. 2. The security device for building construction according to claim 1, wherein a first hinge shaft (13) is installed in the U-shaped space of the first U-shaped hinge base (5), and the rotating end of the descending arm (2) extends into the U-shaped space of the first U-shaped hinge base (5) and is rotatably connected to the first hinge shaft (13); The self-locking mechanism (6) comprises a first sawtooth seat (61) fixed on two sides of the rotating end of the descending arm (2), a second sawtooth seat (62) fixed on two sides of the U-shaped space cavity wall of the first U-shaped hinging seat (5), and an eccentric cam (63) rotatably connected to the second hinging shaft (15), wherein the sawtooth surfaces of the first sawtooth seat (61) and the second sawtooth seat (62) can be meshed with each other, a handle (64) is fixedly connected to the eccentric cam (63), and the flange surface of the eccentric cam (63) is abutted to the outer side surface of the first U-shaped hinging seat (5); the outer end of the first hinge shaft (13) penetrates out of the outer side of the first U-shaped hinge seat (5) and is fixedly connected with a pressing seat (14), and a second hinge shaft (15) is arranged on the pressing seat (14).
  3. 3. The security device for building construction according to claim 2, wherein the eccentric cam (63) is configured to: When the handle (64) drives the eccentric cam (63) to rotate, the flange surface of the eccentric cam (63) pushes against the outer side surface of the first U-shaped hinging seat (5), and the downward arm (2) is driven to move along the axial direction through the pressing seat (14) and the first hinging shaft (13), so that the first serration seat (61) and the second serration seat (62) are engaged and locked; When the handle (64) drives the eccentric cam (63) to reversely rotate, the flange surface of the eccentric cam (63) is separated from the pressing of the first U-shaped hinging seat (5), and the first sawtooth seat (61) is separated from the second sawtooth seat (62) for unlocking.
  4. 4. The security device for building construction according to claim 1, wherein a gap (16) is formed between the ascending arm (1) and the descending arm (2), the second hanging rod (32) is located in the gap (16) in a storage state, a second U-shaped hinging seat (321) is fixed at the free end of the second hanging rod (32), a small hanging rod (322) is rotatably installed in the second U-shaped hinging seat (321), and the U-shaped opening end of the second U-shaped hinging seat (321) is opened towards the sliding end of the second hanging rod (32).
  5. 5. The security device for building construction according to claim 1, wherein: A fourth U-shaped hinging seat (81) is fixed at the tail end of the first auxiliary arm (8), the U-shaped opening end of the fourth U-shaped hinging seat (81) is opened towards the direction away from the tail end of the first auxiliary arm (8), and the hinging end of the first hanging rod (31) is rotatably connected in the fourth U-shaped hinging seat (81); The tail end of the second auxiliary arm (12) is fixed with a third U-shaped hinging seat (121), the U-shaped opening end of the third U-shaped hinging seat (121) is opened towards the direction deviating from the tail end of the second auxiliary arm (12), and the hinging end of the descending pendant (4) is rotationally connected in the third U-shaped hinging seat (121).
  6. 6. The security device for building construction according to claim 5, wherein the small hanging rod (322), the first hanging rod (31) and the descending hanging piece (4) are all made of round tubes or round steel, and the hanging or supporting lengths of the first hanging rod (31), the second hanging rod (32) and the descending hanging piece (4) are at least two thirds of the length of a step ladder layer.
  7. 7. The security protection device for building construction according to claim 1, wherein the number of the second hanging rods (32) is at least two, the sliding end of each second hanging rod (32) is rotatably provided with a moving rod (17), the other end of each moving rod (17) sequentially penetrates through the outer adjusting groove (9) and the inner adjusting groove (10) and stretches into the first core tube (7), the end part of each moving rod (17) is rotatably provided with a moving wheel (18), the moving wheels (18) are in rolling contact with the cavity wall of the first core tube (7), and the diameter of each moving wheel (18) is larger than the groove width of the corresponding inner adjusting groove (10).
  8. 8. A method of installing a security device for building construction according to any one of claims 1 to 7, comprising the steps of: s1, according to the inclination angles of an ascending step and a descending step, the opening and closing angles of an ascending arm (1) and a descending arm (2) are adjusted and locked through a self-locking mechanism (6); S2, respectively sliding and adjusting the extension lengths of the first auxiliary arm (8) and the second auxiliary arm (12) according to the length of the step ladder; S3, sliding the second hanging rod (32) to a preset position, rotating the small hanging rod (322) and hanging on a ladder layer of the ascending ladder; s4, rotating the first hanging rod (31) and hanging the first hanging rod on the other ladder layer of the ascending ladder; s5, rotating the descending hanging piece (4) and supporting the descending hanging piece on a ladder layer of the descending ladder; S6, hanging a protective net or a safety rope between the hooks (19) at the upper side and the lower side to finish the installation.
  9. 9. The method according to claim 8, wherein in step S1, the eccentric cam (63) is driven to rotate by the rotating handle (64), so that the first saw tooth holder (61) and the second saw tooth holder (62) are engaged to realize self-locking, or the handle (64) is rotated reversely to separate the first saw tooth holder (61) and the second saw tooth holder (62) to realize unlocking.
  10. 10. The method for installing the security device for building construction according to claim 8, wherein in the step S3, the sliding end of the second hanging rod (32) is pushed to drive the moving rod (17) and the moving wheel (18) to roll along the inner wall of the first core tube (7), so that the position of the second hanging rod (32) is adjusted.

Description

Security protection device for building construction and installation method thereof Technical Field The invention belongs to the technical field of building safety construction, and particularly relates to a safety protection device for building construction and an installation method thereof, which are suitable for the edge protection of an ascending step and a descending step and can effectively prevent personnel from falling and materials from falling. Background In the building construction process, the ascending step and the descending step are important passages for constructors to pass through, and potential safety hazards such as personnel falling and material falling are easily generated on two sides of the ascending step and gaps between the ascending step and the descending step, so that special security devices are required to be arranged at the ascending step and the descending step to ensure the operation safety of the constructors. At present, most of used inter-ladder security devices are integral temporary protective fences (the wall-leaning side is not required to be arranged, and only the wall-leaning side is arranged), so that basic security protection is provided for inter-ladder passage. The existing temporary guard rail for integral building construction is large in size, heavy, difficult to transfer after use, and cannot be flexibly adjusted according to the distance and the inclination angle of the ascending and descending steps during use, so that the universality is poor. The existing temporary guard rail for integral building construction is large in size, heavy and not easy to transfer after being used. More importantly, the structure is fixed, and the flexible adjustment can not be carried out according to the actual distance and the inclination angle of the ascending and descending steps, so that the universality is poor, and the effective protection is difficult to realize on the stairs with different specifications. CN114947429a discloses a security device for building construction and a use method thereof, which aims to solve the problems that the placing device in the prior art is not multifunctional and is inconvenient to detach and use for the second time. The technical scheme includes that when the security device for building construction is used, the security device for building construction is in an initial state, a chair state is formed, when the inclination angle position of the security device for building construction is switched, the movable frame is arranged to rotate around the upper end of the mounting frame through the pin shaft, so that the security device for building construction forms a stair state, when the security device for building construction is not used, the security device for building construction does not need to be disassembled and decomposed, the security device for building construction can be used as a chair or a stair, and the like, so that the security device for building construction can be multipurpose. The defects are that: ⑴ The stair can not be adapted to stairs of different specifications, namely, the stair state is a stair with a fixed inclination angle formed by rotating the movable frame, the stair can not be adjusted according to the inclination angle of the actual stair, and meanwhile, the overall structure length of the stair is also fixed, so that the stair can not be adapted to stairs of different lengths or heights. ⑵ The device is supported on the ground only by the lower end of the movable frame under the 'stair state', is lack of a fixed or suspended structure with the stair, is easy to shake or slide, has potential safety hazards, and cannot be used as a reliable inter-stair protection device. ⑶ The protection of the inter-ladder gap is not considered, namely the design is designed for personnel to climb initially, the safety protection problem of the inter-ladder gap is not considered, and personnel or materials cannot be prevented from falling from the ladder. ⑷ The storage and portability are still limited in that although the device can be converted without disassembly, it is still a large overall structure in the "stair state" and is inconvenient to transfer or transport between floors. ⑸ The stair-climbing ladder has different function positioning, cannot replace inter-ladder protection, is a simple climbing ladder essentially for picking up high-altitude objects, has no protection function, and can not effectively protect a stair channel due to the fact that the chair-climbing ladder is only used for providing a sitting position. In summary, CN114947429a provides a simple device with multiple functions and convertible forms, which solves the problem of single function, but its structural design determines that it cannot be used as a security device dedicated for a stair passageway. Disclosure of Invention The invention aims to provide a security device for building construction, which is foldable and can be sto