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CN-224200291-U - Marking and positioning device for stepping installation

CN224200291UCN 224200291 UCN224200291 UCN 224200291UCN-224200291-U

Abstract

The invention belongs to the field of municipal engineering, in particular to a marking and positioning device for pedal installation, comprises a grab bar, a lower spring telescopic rod is fixed at one side of the bottom end of the grab bar, the other side is fixedly used for supporting a horizontal rod; an arc rod A is fixed between the two lower spring telescopic rods in the middle, a clamp is fixed at the lower part of the grab rod, one side of the clamp is hinged with four upper spring telescopic rods, the other side of the clamp is connected with a supporting inclined rod, the supporting inclined rod is fixed with a supporting horizontal rod, an arc rod B is fixedly connected between the outer ends of the supporting horizontal rods, rollers are arranged at the two ends of the arc rod B outwards, the upper spring telescopic rod is fixed with two protective covers, the protective covers cover the roller, hollowed holes are formed along the periphery of the surface of the roller, the surface of the roller is coated with a coating layer, and the lower spring telescopic rods are rotationally connected with the roller. The device can carry out one-time positioning paying-off on the stepping installation position outside the well room, improves the working efficiency of measuring paying-off before stepping installation, and solves the problem that stepping measurement positioning paying-off is difficult in the well room.

Inventors

  • WANG CHENGZHI
  • YUAN BING
  • DU WEI
  • SONG HUACHAO
  • Gan Tianyu
  • Du Haoqun
  • SONG CHEN

Assignees

  • 济南城建集团有限公司
  • 济南城建(青岛)市政工程有限公司
  • 济南轨道交通产业投资发展集团有限公司
  • 济南城市建设集团有限公司

Dates

Publication Date
20260505
Application Date
20250603

Claims (10)

  1. 1. A marking and positioning device for stepping installation is characterized by comprising a handrail rod (1), wherein four lower spring telescopic rods (2) are outwards fixed on one side of the bottom end of the handrail rod (1), a plurality of supporting horizontal rods (3) are outwards fixed on the other side of the bottom end of the handrail rod (1), the lower spring telescopic rods (2) and the supporting horizontal rods (3) are on the same horizontal plane, an arc-shaped rod A (4) is fixedly connected between the outer ends of the two middle lower spring telescopic rods (2), inserting posts (5) are oppositely arranged between the two outer ends of the lower spring telescopic rods (2), a clamp (7) is fixed on the lower portion of the handrail rod (1), four upper spring telescopic rods (8) are outwards hinged on one side of the clamp (7), a plurality of supporting diagonal rods (9) are outwards connected on the other side of the clamp (7), the supporting diagonal rods (9) are fixedly connected with the supporting horizontal rods (3), an arc-shaped rod B (10) is fixedly connected between the outer ends of the supporting horizontal rods (3), rollers (11) are outwards arranged at the two ends of the arc-shaped rod B (10), four upper spring protective covers (8) are fixedly connected with two protective covers (12) respectively, the two protective covers are in shape matched with two rollers (12) respectively, the two protective covers are in shape matched with the two roller covers (12), at least two groups of hollowed holes (14) are uniformly formed in a circle along the surface of the roller (13), each group of hollowed holes (14) corresponds to the opening position of the protective cover (12), a coating layer is covered outside the hollowed holes (14) on the surface of the roller (13), insertion holes (15) are formed in the end faces of two ends of the roller (13), the inserting posts (5) are inserted into the insertion holes (15) to connect the lower spring telescopic rod (2) with the roller (13), the roller (13) can rotate around the inserting posts (5), the radians of the surfaces of the arc-shaped rod A (4), the arc-shaped rod B (10) and the roller (13) are consistent with the radians of the inner wall of a well, the vertical distance between every two adjacent steps is an integral multiple of the arc length between the hollowed holes (14) of the adjacent groups, the arc length between the two hollowed holes (14) of the same group is the arc length between two mounting points of each step, and the center distance between every two steps is equal to the center distance between every two steps.
  2. 2. The marking and positioning device for pedal installation according to claim 1, wherein the lower spring telescopic rod (2) and the upper spring telescopic rod (8) comprise a fixed rod (16) and a sliding rod (17) which are sleeved together, the sliding rod (17) can slide in the fixed rod (16), the fixed rod (16) and the sliding rod (17) are provided with baffle plates (18), a spring (19) is arranged between the two baffle plates (18), the spring (19) is sleeved on the fixed rod (16) and the sliding rod (17), and two ends of the spring (19) are respectively fixed with the baffle plates (18) at two sides.
  3. 3. The marking and positioning device for pedal installation according to claim 1, wherein the upper end of the grab rail (1) is provided with a handle (20).
  4. 4. The marking and positioning device for pedal installation according to claim 1, wherein the grab rail (1) is a telescopic rod.
  5. 5. The marking and positioning device for pedal installation according to claim 4, wherein the locking piece of the grab bar (1) is a spring buckle, a push-pull buckle or a buckle.
  6. 6. The marking and positioning device for pedal installation according to claim 4, wherein the handrail rod (1) comprises an upper rod (21) and a lower rod (22) which are sleeved together, the upper rod (21) can slide up and down in the lower rod (22), a plurality of round holes (23) are formed in the lower rod (22) from top to bottom, a pressing type spring button (24) is arranged on the upper rod (21), and the handrail rod (1) is locked by the pressing type spring button (24) penetrating through the round holes (23).
  7. 7. The marking and positioning device for pedal installation according to claim 1, wherein the number of the supporting horizontal rods (3) is two.
  8. 8. The marking and positioning device for pedal installation according to claim 1, wherein grooves (6) are formed on two sides of the roller (13).
  9. 9. The marking apparatus for pedal installation according to claim 1, wherein the coating layer is a wool fabric impregnated with a dye.
  10. 10. The marking and positioning device for pedal installation according to claim 1, wherein the inner wall of the protective cover (12) is provided with a coating layer, and the coating layer in the protective cover (12) is contacted with the coating layer on the roller (13).

Description

Marking and positioning device for stepping installation Technical Field The invention belongs to the field of municipal engineering, and particularly relates to a marking and positioning device for pedal installation. Background Manhole steps are an indispensable accessory facility for meeting the requirement that workers enter and exit the manhole for maintenance or cleaning during operation and maintenance of the manhole. Due to the fact that the problem of the modulus of the height of the manhole shaft is involved, when the manhole shaft is prefabricated by a prefabrication factory, taking the standardability and the standardization of the steps in a well room into consideration, the steps are not installed during prefabrication, but the steps are installed after the field construction of the manhole is completed, but during the steps of the manhole are installed, the following problems are often caused in the traditional mode: (1) The inspection shaft is marked time and is measured unwrapping wire and adopts the manual work to fix a position unwrapping wire in inspection shaft well chamber more, because well chamber inner wall lacks fixed datum point, often need to measure the adjustment repeatedly in well chamber, not only unwrapping wire location is inaccurate, and efficiency of construction is low moreover. (2) The installation position of marking time is inaccurate, and size, angle, interval are inconsistent with atlas and standard requirement, often do not reach atlas and standard requirement, lead to cat ladder slope or interval inequality, and the installation qualification rate of marking time is not high. (3) When the construction worker pays out the line in the well room, the worker needs to enter the well room to operate, at this time, because the inspection well is not mounted in the well room, the temporary escalator needs to be added to assist in entering and exiting the well room, the space in the well room is originally narrow, and the construction worker is inconvenient to enter and exit the inspection well room. In addition, the workers pay-off operation in a narrow space for a long time, and the potential safety hazard is large. In the prior art, although some stepping positioning devices exist, the problems that measurement paying-off operation needs to be carried out in a well chamber of an inspection well, adaptability is poor and the like generally exist. Thus, there is a need for a novel marking off positioning device. Disclosure of Invention The invention aims to overcome the defects of the background technology and provide a marking and positioning device for step installation. The invention is realized by the following technical scheme: A marking and positioning device for pedal installation comprises a handrail rod, four lower spring telescopic rods are outwards fixed on one side of the bottom end of the handrail rod, a plurality of supporting horizontal rods are outwards fixed on the other side of the bottom end of the handrail rod, an arc rod A is fixedly connected between the outer ends of the two lower spring telescopic rods in the middle, two insert posts are oppositely arranged between the outer ends of the lower spring telescopic rods, a clamp is fixedly arranged on the lower portion of the handrail rod, four upper spring telescopic rods are outwards hinged to one side of the clamp, a plurality of supporting diagonal rods are outwards connected to the other side of the clamp, the supporting diagonal rods are fixedly connected with the supporting horizontal rods, rollers are outwards arranged at the two ends of the arc rod B, the lower ends of the four upper spring telescopic rods are respectively fixed with two protective covers, the protective covers are respectively covered on the outer sides of the two protective covers, at least two groups of hollow holes are uniformly formed along the surfaces of the roller, the hollow holes can correspond to the open positions of the protective covers, the surfaces of the hollow holes are covered on the surfaces of the roller Kong Waibao, the distances between the two insert posts are equal to the lengths of the arc rods, and the distance between the two insert posts corresponds to the two insert posts, and the two insert posts are equal to the lengths between the adjacent arc posts, and the two insert posts are equal to the distances between the adjacent arc posts. Preferably, the lower spring telescopic rod and the upper spring telescopic rod comprise a fixed rod and a sliding rod which are sleeved together, the sliding rod can slide in the fixed rod, the fixed rod and the sliding rod are respectively provided with a baffle plate, a spring is arranged between the two baffle plates, the spring is sleeved on the fixed rod and the sliding rod, and two ends of the spring are respectively fixed with the baffle plates at two sides. Preferably, the upper end of the grab rail is provided with a handle. Preferably, the grab rail is a t