CN-117449204-B - Hogging moment stretch-draw hole protector

CN117449204BCN 117449204 BCN117449204 BCN 117449204BCN-117449204-B

Abstract

The invention relates to the technical field of hogging moment stretch-draw hole protection, in particular to a hogging moment stretch-draw hole protection device. The device body in this embodiment can be through a plurality of plate bodies swivelling joint in proper order and finally with first plate body and fourth plate body through the connecting rod connection and accomplish the installation, whole process convenient operation, and can cooperate the protection bottom plate to go on preferably, every plate body only need rotatory to corresponding protection bottom plate department can, that is, protection bottom plate can be better as rotatory benchmark in order to play the instruction effect to the operating personnel, with the contained angle deviation is great between the adjacent plate body is avoided, and the condition that is difficult to be connected through the connecting rod between first plate body and the fourth plate body leads to the best.

Inventors

ZHENG QIAN
CHEN JIAREN
WANG KUN
LIU BUGANG
HE LEI
WANG XINHUI
JIANG NAN
LI XIANGYU

Assignees

中铁十局集团第四工程有限公司
中铁十局集团有限公司

Dates

Publication Date: 20260512
Application Date: 20231025

Claims (8)

1. The hogging moment stretch-draw hole protection device is characterized by comprising a device body (100), wherein the device body (100) comprises a first plate body (110), a second plate body (120), a third plate body (130) and a fourth plate body (140), the first plate body (110), the second plate body (120), the third plate body (130) and the fourth plate body (140) are connected in a surrounding mode to form a protection ring, the protection ring is used for being placed at a hogging moment Zhang Lakong, the first plate body (110) and the second plate body (120) and the third plate body (130) are movably connected in pairs through hinges (910), a connecting rod (710) is arranged between the first plate body (110) and the fourth plate body (140), and the connecting rod (710) is used for fixedly connecting the first plate body (110) and the fourth plate body (140). The device body (100) also comprises a ring-shaped protective bottom plate (200), wherein the protective bottom plate (200) is used for being placed at an orifice of the negative bending moment Zhang Lakong, the protective bottom plate (200) comprises a bottom plate body (400), and the bottom plate body (400) comprises a vertical bottom plate (410) and a horizontal bottom plate (420) which are arranged orthogonally to each other; One side of the first plate body (110) far away from the hogging moment stretching hole is provided with a positioning pressing plate (1010), the outside of the positioning pressing plate (1010) is provided with a propping mechanism, and the propping mechanism is used for propping the positioning pressing plate (1010) against the protection bottom plate (200); The propping mechanism comprises an arc-shaped plate (1020), the bottom end of the arc-shaped plate (1020) is fixedly connected with the bottom of the positioning pressing plate (1010), mounting seats (1110) are arranged on two sides of the arc-shaped plate (1020), two side walls of the arc-shaped plate (1020) are connected with the mounting seats (1110) through rotating shafts, torsion springs (1120) are arranged at the rotating shafts, the torsion springs (1120) are used for keeping the trend that the arc-shaped plate (1020) drives the positioning pressing plate (1010) to press the first plate body (110) on the protective bottom plate (200), pedals (1130) are formed at the top of the arc-shaped plate (1020) and used for being pedaled to release the compression between the first plate body (110) and the protective bottom plate.
2. The hogging moment tensioning eye protection device as set forth in claim 1, wherein the protection base plate (200) comprises a first base plate (210), a second base plate (220), a third base plate (230) and a fourth base plate (240) connected in pairs.
3. The hogging moment stretching hole protection device of claim 2, wherein the first bottom plate (210), the second bottom plate (220), the third bottom plate (230) and the fourth bottom plate (240) are respectively corresponding to the first plate body (110), the second plate body (120), the third plate body (130) and the fourth plate body (140), the first bottom plate (210), the second bottom plate (220), the third bottom plate (230) and the fourth bottom plate (240) comprise a bottom plate body (400), and a first right angle part (430) and a second right angle part (440) are formed between the vertical bottom plate (410) and the horizontal bottom plate (420).
4. A hogging moment stretching hole guard according to claim 3, wherein the first right angle portion (430) is adapted to be in abutting engagement with the upper edge of the orifice of the hogging moment Zhang Lakong, and the second right angle portion (440) is adapted to be in abutting engagement with the bottom corner of the first plate (110) or the second plate (120) or the third plate (130) or the fourth plate (140).
5. The hogging moment stretch-draw hole protector of claim 1, wherein two mounting plates (1310) are formed on one side of the positioning pressing plate (1010) close to the second plate body (120), adjusting through holes are formed at the two mounting plates (1310), the adjusting through holes are used for mounting adjusting vertical rods (1320), the lower parts of the adjusting vertical rods (1320) are in threaded connection with the adjusting through holes on the lower sides, a first side plate (1330) is connected to the side wall of the adjusting vertical rods (1320), the first side plate (1330) is used for propping against the outer wall of the second plate body (120), and the adjusting vertical plates are used for rotating to adjust the angle between the second plate body (120) and the first plate body (110).
6. The hogging moment stretch-draw hole protection device of claim 2, wherein the top wall of the first plate body (110) is provided with a mounting shaft (810), the first end of the connecting rod (710) is movably connected with the mounting shaft (810), the top wall of the fourth plate body (140) is provided with a positioning hole (820), and the positioning hole (820) is used for being fastened and connected with the second end of the connecting rod (710).
7. The hogging moment stretch-draw hole protection device of claim 1, wherein an adjusting sleeve (830) is arranged at the middle part of the connecting rod (710), a first rod body (711) and a second rod body (712) are respectively formed at the parts of the connecting rod (710) at two sides of the adjusting sleeve (830), the first rod body (711) and the second rod body (712) are separated, a first thread (713) and a second thread (714) are respectively formed at one side of the first rod body (711) and one side of the second rod body (712) close to the adjusting sleeve (830), the rotation directions of the first thread (713) and the second thread (714) are opposite, the first thread (713) and the second thread (714) are respectively connected with the threads at two ends of the adjusting sleeve (830), and the adjusting sleeve (830) is used for manually rotating to adjust an included angle between the first plate body (110) and the second plate body (120).
8. A hogging moment stretching hole protection method is characterized by being based on the hogging moment stretching hole protection device according to any one of claims 1-7, and specifically comprising the following steps: step S1, a first plate body (110) is fixedly arranged at a hogging moment stretching hole, Step S2, rotating the second plate body (120) relative to the first plate body (110) to form a vertical; Step S3, rotating the third plate body (130) relative to the second plate body (120) to be vertical; S4, rotating the fourth plate body (140) relative to the third plate body (130), and fastening and connecting the first plate body (110) and the fourth plate body (140) through a connecting rod (710); and S5, the first plate body (110), the second plate body (120), the third plate body (130) and the fourth plate body (140) are jointly enclosed to form a protective ring so as to form protection for the hogging moment stretching hole.

Description

Hogging moment stretch-draw hole protector Technical Field The invention relates to the technical field of hogging moment stretch-draw hole protection, in particular to a hogging moment stretch-draw hole protection device. Background The negative bending moment Zhang Lakong of the prestressed small box girder is used as a reserved hole for construction of the continuous structure of the prestressed small box girder bridge, and is exposed to a construction site for a long time in the process of erecting the box girder, if effective measures are not taken to protect the box girder, hidden danger can be generated for safety of box girder erection operation and bridge construction operation personnel. And in the traditional construction process, the waste template is covered for protection, so that the protection measures cannot effectively warn construction operators, and the operators drop into the holes due to insufficient bearing capacity when the operators tread, thereby causing injury. Disclosure of Invention The invention provides a hogging moment stretching hole protecting device which can overcome certain or certain defects in the prior art. The invention relates to a hogging moment stretching hole protection device which comprises a device body, wherein the device body comprises a first plate body, a second plate body, a third plate body and a fourth plate body, the first plate body, the second plate body, the third plate body and the fourth plate body are connected in pairs and jointly enclose to form a protection ring, the protection ring is used for being placed at a hogging moment Zhang Lakong, the first plate body, the second plate body and the second plate body are movably connected in pairs through hinges, and a connecting rod is arranged between the first plate body and the fourth plate body and is used for fixedly connecting the first plate body and the fourth plate body. Preferably, the device body further comprises a ring-shaped protection bottom plate, wherein the protection bottom plate is used for being placed at an orifice of the hogging moment Zhang Lakong, and the protection bottom plate comprises a first bottom plate, a second bottom plate, a third bottom plate and a fourth bottom plate which are connected in pairs. Preferably, the first bottom plate, the second bottom plate, the third bottom plate and the fourth bottom plate are respectively used for corresponding to the first plate body, the second plate body, the third plate body and the fourth plate body, the first bottom plate, the second bottom plate, the third bottom plate and the fourth bottom plate all comprise bottom plate bodies, the bottom plate bodies comprise vertical bottom plates and horizontal bottom plates which are arranged in a mutually orthogonal mode, and a first right angle part and a second right angle part are formed between the vertical bottom plates and the horizontal bottom plates. Preferably, the first right-angle part is used for being in abutting fit with the upper edge of the orifice of the negative bending moment Zhang Lakong, and the second right-angle part is used for being in abutting fit with the bottom corner of the first plate body or the second plate body or the third plate body or the fourth plate body. Preferably, a positioning pressing plate is arranged on one side of the first plate body far away from the hogging moment Zhang Lakong, a propping mechanism is arranged outside the positioning pressing plate, and the propping mechanism is used for propping the positioning pressing plate against the protective baffle. Preferably, the abutting mechanism comprises an arc-shaped plate, the bottom end of the arc-shaped plate is fixedly connected with the bottom of the positioning pressing plate, mounting seats are arranged on two sides of the arc-shaped plate, two side walls of the arc-shaped plate are connected with the mounting seats through rotating shafts, torsion springs are arranged at the rotating shafts and used for keeping the trend that the arc-shaped plate drives the positioning pressing plate to press the first plate body on the protective baffle, pedals are formed at the top of the arc-shaped plate and used for being pedaled to relieve the compression between the first plate body and the protective baffle. Preferably, two mounting plates which are arranged up and down are formed on one side, close to the second plate body, of the positioning pressing plate, adjusting through holes are formed in the two mounting plates, the adjusting through holes are used for installing adjusting vertical rods, the lower portions of the adjusting vertical rods are in threaded connection with the adjusting through holes located on the lower sides, first side plates are connected to the side wall of the adjusting vertical rods and are used for propping against the outer wall of the second plate body, and the adjusting vertical plates are used for rotating to adjust the angle between the second plate body