Device facilitating dismounting of bridge floor pull rod
By designing a bridge deck pull rod removal device that integrates tool head and movable wrench, the problem of frequent tools replacement in the prior art is solved, the efficiency and convenience of bridge deck pull rod removal is improved, and the operation of different specifications of nuts and narrow spaces is adapted to the operation of different specifications of nuts and narrow spaces .
Patent Information
- Application Number
- CN202420239986.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-31
AI Technical Summary
In the prior art, tools need to be frequently replaced when disassembling the bridge deck lever, resulting in inefficient work.
A device is designed including a cylindrical grip, tool head, fixed wrench hole, movable wrench, push key and snail head. The wrench position of the tool head is at an angle of 90° to the grip, and the movable wrench has an adjustable wrench buckle and The gear setting is set, the push key has a limit gear block and a spring, and the grip surface is covered with rubber protective sleeve.
It reduces the number of times workers carry and replace tools, improves the efficiency of disassembly of bridge deck pull rods, adapts to the operation of different specifications of nuts and narrow spaces, provides the function of pulling nails, and improves the convenience and comfort of operation.
Smart Images
Figure CN222251812U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a device which is convenient for disassembling a bridge deck tie rod. Background Art
[0002] A bridge is a structure erected on rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. In order to adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that are erected to cross mountain streams, poor geology, or meet other transportation needs to make passage more convenient. Bridges are generally composed of superstructures, substructures, supports, and auxiliary structures. The superstructure, also known as the bridge span structure, is the main structure for crossing obstacles. The substructure includes abutments, piers, and foundations. The supports are force transmission devices installed at the supporting locations of the bridge span structure and piers or abutments. The auxiliary structures refer to the bridgehead slab, conical slope protection, revetment, diversion projects, etc. However, when a bridge encounters an earthquake, the upper bridge main beam will undergo a relatively large horizontal displacement, resulting in beam drop damage. The drop of the beam will damage other components of the bridge, further expanding the harm of the earthquake.
[0003] In order to prevent the upper bridge main beam from relatively large horizontal displacement during an earthquake, bridge seismic tension rods are usually installed at the connection between the main beam and the pier. Since some tension rods connect the bridge deck and the pier, they are also called bridge deck tension rods. The bridge deck tension rod uses the tension rod to limit the large horizontal displacement of the upper beam body to prevent beam drop damage. The slits on the surface of the steel pipe consume part of the earthquake energy through tensile deformation, reducing damage to other bridge components.
[0004] However, the bridge deck tie rod will gradually age with the extension of the service time, and it is necessary to carry out regular maintenance and replace the damaged bridge deck tie rod; but the bridge deck tie rod in the prior art is usually a screw rod, which is connected and fixed by a nut. Therefore, when disassembling, it is usually necessary to first use a wrench to remove the nut on the tie rod, and then use a crowbar to pry open the spring, and then use a small wrench to disassemble the work box. During the whole process, workers need to change multiple tools, and all of them are manpower, which makes the disassembly process inefficient. Utility Model Content
[0005] The utility model aims to provide a device for facilitating the disassembly of a bridge deck tie rod, so as to solve the technical problem in the prior art that the bridge deck tie rod is disassembled using a wrench, the tool needs to be frequently replaced, and the work efficiency is low.
[0006] In order to solve the above problems, the technical solution adopted by the utility model is as follows: a device for facilitating the disassembly of the bridge deck tie rod, comprising a handle of a cylindrical structure, one end of the handle is provided with a crowbar head, and the other end is a tool head, and the tool head is provided with a fixed wrench hole and a movable wrench.
[0007] The beneficial effects of this embodiment are:
[0008] Compared with the prior art, the present application integrates the tools used for disassembling the bridge deck tie rods into one, so that workers do not need to carry too many tools when disassembling the bridge deck tie rods, and do not need to frequently change tools during use.
[0009] Furthermore, the tool head is a rectangular structure, the middle of the tool head is vertically connected to the handle, one end of the tool head is provided with a fixed wrench hole, and the other end is provided with an adjustable wrench. The handle is connected to the middle of the tool head, and the fixed wrench hole and the adjustable wrench are provided at both ends of the tool head, so that the wrench position and the handle form a 90° angle. When the bridge deck tie rod installation position is too narrow, the tool head can also be inserted for disassembly, while the wrench opening of the wrench in the prior art is coaxial with the handle, so when facing a narrow space, the handle will hinder the operation of the wrench.
[0010] Furthermore, the movable wrench shown is provided with a push key that can adjust the wrench buckle to correspond to nuts of different specifications. In the prior art, the movable wrench has no gear setting, and when using it, the worker needs to use experience to adjust the wrench to a size slightly larger than the size of the nut, and after the movable wrench is inserted, it is adjusted again so that the movable wrench is stuck to the nut before it can be disassembled. However, the present application is provided with a push key, and the gears set on the push key make it easier to use the movable wrench to correspond to nuts of different specifications in different gears, which is easier to use.
[0011] Furthermore, the tool head is provided with a stab head. The bridge deck tie rod is provided between the bridge deck and the base platform, and sometimes workers will hammer nails here, and the stab head can be used to pull out the nails.
[0012] Furthermore, the push key includes a shift block for limiting the push key, and the shift block is provided with a shift spring for resetting the shift block.
[0013] Furthermore, a rubber protective cover is provided on the surface of the handle, so that the worker does not come into direct contact with the cold metal handle. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view of an embodiment of the utility model.
[0015] Figure 2 This is a schematic diagram of the structure of the adjustable wrench of the utility model embodiment.
[0016] Figure 3 It is a schematic structural diagram of a push key according to an embodiment of the utility model. DETAILED DESCRIPTION
[0017] The following is further described in detail through specific implementation methods:
[0018] The reference numerals in the drawings of the specification include: handle 1, tool head 2, fixed wrench hole 21, stab head 22, movable wrench 23, fixed lip 231, movable lip 232, sliding screw 233, drive screw 234, push key 235, gear block 2351, gear spring 2352, crowbar head 3.
[0019] Implementation example Figures 1 to 3 As shown: a device for facilitating the disassembly of a bridge deck tie rod, comprising a handle 1 having a cylindrical structure, the surface of which is covered with a rubber protective sleeve. Figure 1 As shown, a crowbar head 3 is provided at the right end of the handle 1. The crowbar head 3 is gradually changed from a cylindrical structure to a plate structure, and the plate gradually becomes thinner toward the end. The left end of the handle 1 is a tool head 2.
[0020] The interface of the tool head 2 is a rectangular plate structure. The middle part of the tool head 2 is vertically connected to the handle 1. Therefore, the tool head has two ends, the lower end is provided with a fixed spanner hole 21, and the fixed spanner hole 21 is a 24mm spanner hole corresponding to the M16 nut commonly used for fixing the bridge deck tie rod. The upper end of the tool head 2 is provided with an adjustable spanner 23. A spur head 22 is provided on one side of the middle part of the tool head 2 corresponding to the handle 1.
[0021] Adjustable wrench 23 Figure 2 As shown, it includes a fixed lip 231, a movable lip 232, a sliding screw 233, and a driving screw 234, wherein the fixed lip 231 is fixed to the upper end of the tool head 2, and a slide groove is provided on the upper end surface of the tool head 2, the interface of the slide groove is a circular lower end and a rectangular upper end splicing structure, the slide screw 233 is slidably connected in the slide groove, and the movable lip 232 is fixedly connected with the sliding screw 233 in the circular structure of the slide groove by utilizing the rectangular structure on the slide groove. The rectangular part of the slide groove is smaller than the circular part and the sliding screw 233, so the sliding screw 233 is in the circular structure part of the slide groove, but cannot be disengaged from the rectangular structure part of the slide groove, and a baffle is provided on the upper surface of the tool head 2 at the left end of the slide groove so that the movable lip 232 cannot slide out from the left end of the slide groove.
[0022] A driving groove is opened at the lower end of the slide groove, and a driving screw 234 is rotatably connected in the driving groove. The driving groove is connected to the slide groove, and the driving screw 234 is meshed with the sliding screw. Therefore, rotating the driving screw 234 can rotate the sliding screw 233, thereby causing the movable lip to slide on the upper end of the tool head 2.
[0023] The driving rod 234 is coaxial with the push key 235, so when the push key 235 is pushed, the driving rod 234 will also move accordingly. Figure 3As shown, a baffle is arranged on the circumference of the push key 235, and a shift slot is opened directly below the driving slot and the push key 235. A shift spring 2352 is welded to the bottom of the shift slot, and a shift block 2351 with a trapezoidal cross section is welded to the upper end of the shift spring 2352. When the push key 235 rotates, the baffle on the push key 235 will contact the shift block 2351, providing a resistance to the push key 235. When the force is continued, the baffle will press the shift block 2352 into the shift slot, so that the push key 235 can continue to rotate. After the baffle passes the shift block 2351, the shift block 2351 is reset with the help of the shift spring 2352, ready to limit the next baffle. The contact between different baffles and the shift block 2351 corresponds to the distance between the movable lip 232 and the fixed lip 231, and corresponds to nuts of different sizes. Therefore, the worker can use the different gears when pushing the push key 235 to judge whether the size of the corresponding nut has been reached, without having to adjust it after putting on the nut.
[0024] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme are not described in detail here.
[0025] It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A device for facilitating the disassembly of a bridge deck tie rod, comprising a handle of a cylindrical structure, characterized in that: One end of the handle is provided with a crowbar head, and the other end is a tool head. The tool head is provided with a fixed wrench hole and an adjustable wrench. The adjustable wrench is provided with a push key with an adjustable wrench buckle corresponding to nuts of different specifications. The push key includes a gear block for limiting the push key, and the gear block is provided with a gear spring that can reset the gear block.
2. The device for facilitating the disassembly of a bridge deck tie rod according to claim 1, characterized in that: The tool head is a rectangular structure, the middle part of the tool head is vertically connected to the handle, one end of the tool head is provided with a fixed wrench hole, and the other end is provided with an adjustable wrench.
3. The device for facilitating the disassembly of a bridge deck tie rod according to claim 1, characterized in that: The tool head is provided with a thorn head.
4. The device for facilitating the disassembly of a bridge deck tie rod according to claim 1, characterized in that: A rubber protective cover is provided on the surface of the grip.