Pawl device for slippage of steel beam

Abstract

The utility model discloses a pawl device for slippage of a steel beam, which belongs to the technical field of building construction and comprises a bottom plate, the bottom plate is slidably arranged on the top surface of a slideway beam, and a plurality of square holes are uniformly formed in the top surface of the slideway beam; the hydraulic oil cylinder jacking mechanism is arranged at one end of the upper side of the bottom plate, at least one limiting hole is formed in the end, away from the hydraulic oil cylinder jacking mechanism, of the bottom plate, the fixed end of the hydraulic oil cylinder jacking mechanism is fixedly connected with the bottom plate, and the driving end of the hydraulic oil cylinder jacking mechanism is detachably connected with a sliding part at the bottom end of a steel beam. The limiting mechanisms correspond to the limiting holes in a one-to-one mode, and the limiting mechanisms are located on the upper sides of the corresponding limiting holes and used for providing counter force for the hydraulic oil cylinder jacking mechanism during sliding. According to the utility model, the problem of manual plug-in and plug-out work of the steel beam in each stroke in the slippage process is effectively solved, the construction difficulty of workers due to overlarge pin shafts and overweight anchor bearings is avoided, and compared with the traditional steel beam slippage, the working efficiency is greatly improved and the labor is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a pawl device for sliding a steel beam. Background Art

[0002] In steel bridge construction, there are many economical and safe construction methods, such as in-situ support hoisting, cantilever assembly, jacking, rotation, and sliding. However, due to the complexity of the construction site working environment, the smooth entry of large-scale construction equipment has been greatly affected to a certain extent. This not only affects the smooth completion of the construction period, but also increases construction costs. Construction methods such as segmented jacking and sliding have low requirements for the on-site construction environment, can adapt to complex work sites, can ensure the normal implementation of construction operations, and can be divided into multiple working surfaces, so that the construction period is limited. At the same time, hydraulic cylinder jacking and sliding can not only greatly reduce costs but also ensure construction safety.

[0003] This type of push-sliding pawl and the pawl with a pin shaft crossing the web require manual insertion of bolts or pin shafts, which greatly reduces work efficiency and wastes labor. Utility Model Content

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A pawl device for sliding a steel beam, comprising:

[0006] A bottom plate, the bottom plate being slidably disposed on the top surface of the slide beam, the top surface of the slide beam being evenly provided with a plurality of square holes;

[0007] A hydraulic cylinder jacking mechanism, the hydraulic cylinder jacking mechanism is arranged at one end of the upper side of the base plate, at least one limiting hole is provided on the end of the base plate away from the hydraulic cylinder jacking mechanism, the fixed end of the hydraulic cylinder jacking mechanism is fixedly connected to the base plate, and the driving end is detachably connected to the sliding member at the bottom end of the steel beam;

[0008] At least one limiting mechanism is provided in a one-to-one correspondence with the limiting holes, and the limiting mechanism is located on the upper side of the corresponding limiting hole, and is used to provide a reaction force for the hydraulic cylinder jacking mechanism when the steel beam slides.

[0009] Furthermore, the limiting holes are arranged in pairs, and each pair of the limiting holes is symmetrically arranged on both sides of the hydraulic cylinder jacking mechanism.

[0010] Furthermore, two limiting holes are provided, and the two limiting holes are symmetrically arranged on both sides of the hydraulic cylinder jacking mechanism.

[0011] Furthermore, the hydraulic cylinder jacking mechanism includes:

[0012] A hydraulic cylinder jacking seat, wherein the hydraulic cylinder jacking seat is fixedly connected to one side of the upper end of the base plate;

[0013] A hydraulic cylinder, wherein the fixed end of the hydraulic cylinder is mounted on the hydraulic cylinder jacking seat, and the movable end is detachably connected to the sliding member at the bottom end of the steel beam.

[0014] Furthermore, each of the limiting mechanisms includes:

[0015] Two webs, the two webs being symmetrically arranged on both sides of the limiting hole;

[0016] A pawl is located at one end close to the hydraulic cylinder top seat, and the first end is rotatably connected to the two webs, and the second end is a free end and can extend into the limiting hole.

[0017] Furthermore, the hydraulic cylinder and the hydraulic cylinder jacking seat are connected via a hydraulic cylinder jacking pin shaft, and the web and the pawl are connected via a pawl pin shaft.

[0018] Furthermore, the end of the limiting hole close to the hydraulic cylinder top seat is the first end of the limiting hole, the end away from the hydraulic cylinder top seat is the second end of the limiting hole, the distance between the center of the pawl pin shaft and the second end of the pawl is a, the distance between the center of the pawl pin shaft and the first end of the limiting hole is b, the distance between the center of the pawl pin shaft and the second end of the limiting hole is c, and b <a<c。

[0019] Beneficial effects of the utility model:

[0020] The utility model effectively solves the problem of manual insertion and removal of pins in each stroke of the steel beam during sliding, avoids the construction difficulties for workers caused by excessively large pin shafts and heavy anchor seats, and greatly improves work efficiency and reduces labor compared to traditional steel beam sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the existing structure in the background technology;

[0022] Figure 2 This utility model is a pawl device for sliding of steel beams;

[0023] Figure 3 This is a top view of a pawl device for sliding a steel beam according to the utility model;

[0024] Figure 4 This is a schematic diagram of the hydraulic cylinder of a pawl device for sliding a steel beam according to the present invention when it begins to retract;

[0025] Figure 5This is a schematic diagram of the cylinder retraction process of a pawl device for sliding a steel beam according to the present invention;

[0026] Figure 6 This is a schematic diagram of a pawl device for sliding a steel beam according to the present invention when it retracts to a designed position.

[0027] In the figure: 1. Base plate; 2. Web plate; 3. Ratchet; 4. Ratchet pin; 5. Hydraulic cylinder top pin; 6. Limit hole; 7. Steel beam; 8. Hydraulic cylinder top seat; 9. Hydraulic cylinder. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Example 1

[0030] refer to Figures 1 to 6 , a pawl device for sliding a steel beam, comprising:

[0031] Bottom plate 1, bottom plate 1 is slidably arranged on the top surface of the slide beam, and a plurality of square holes are evenly opened on the top surface of the slide beam;

[0032] Preferably, the spacing between the multiple square holes is 1.25m.

[0033] A hydraulic cylinder jacking mechanism is provided at one end of the upper side of the base plate 1. At least one limiting hole 6 is provided on the end of the base plate 1 away from the hydraulic cylinder jacking mechanism. The fixed end of the hydraulic cylinder jacking mechanism is fixedly connected to the base plate 1, and the driving end is detachably connected to the sliding member at the bottom end of the steel beam 7.

[0034] At least one limiting mechanism is provided, and the limiting mechanism is arranged in a one-to-one correspondence with the limiting hole 6. The limiting mechanism is located on the upper side of the corresponding limiting hole 6 and is used to provide a reaction force for the hydraulic cylinder jacking mechanism when sliding.

[0035] The utility model effectively solves the problem of manual insertion and removal of pins in each stroke of the steel beam during sliding, avoids the construction difficulties for workers caused by excessively large pin shafts and heavy anchor seats, and greatly improves work efficiency and reduces labor compared to traditional steel beam sliding.

[0036] In this embodiment, the limiting holes 6 are arranged in pairs, and each pair of limiting holes 6 is symmetrically arranged on both sides of the hydraulic cylinder jacking mechanism.

[0037] In this embodiment, two limiting holes 6 are provided, and the two limiting holes 6 are symmetrically arranged on both sides of the hydraulic cylinder jacking mechanism.

[0038] In this embodiment, the hydraulic cylinder jacking mechanism includes:

[0039] The hydraulic cylinder jacking seat 8 is fixedly connected to one side of the upper end of the bottom plate 1;

[0040] The hydraulic cylinder 9, the fixed end of the hydraulic cylinder 9 is installed on the hydraulic cylinder jacking seat 8, and the moving end is detachably connected to the sliding member at the bottom end of the steel beam 7.

[0041] In this embodiment, each limiting mechanism includes:

[0042] Two webs 2, the two webs 2 are symmetrically arranged on both sides of the limiting hole 6;

[0043] The pawl 3, the pawl 3 is located at one end close to the hydraulic cylinder jacking seat 8, and the first end is rotatably connected to the two webs 2, and the second end is a free end and can extend into the limiting hole 6.

[0044] In the present utility model, by arranging the pawl 3 at one end close to the hydraulic cylinder jacking seat 8, through the limitation of the limiting hole, the pawl 3 can only rotate clockwise, and the counterclockwise rotation is limited. In this way, a reaction force can be provided by the pawl device during sliding, and it can rotate along with the retraction of the oil cylinder. The whole process does not require manual participation, which improves work efficiency.

[0045] In this embodiment, the hydraulic cylinder 9 and the hydraulic cylinder jacking seat 8 are connected by a hydraulic cylinder jacking pin shaft 5, and the web 2 and the pawl 3 are connected by a pawl pin shaft 4.

[0046] In this embodiment, one end of the limiting hole 6 close to the hydraulic cylinder jacking seat 8 is the first end of the limiting hole 6, and the end far from the hydraulic cylinder jacking seat 8 is the second end of the limiting hole 6. The distance from the center of the pawl pin shaft 4 to the second end of the pawl 3 is a, the distance from the center of the pawl pin shaft 4 to the first end of the limiting hole 6 is b, and the distance from the center of the pawl pin shaft 4 to the second end of the limiting hole 6 is c, and b < a < c, which is used to ensure that it can only rotate clockwise and limit the counterclockwise rotation.

[0047] During specific implementation, considering the width of the pawl, a is the longest distance from the center of the pawl to the second end of the pawl, and the size of the limiting hole should ensure that the pawl can pass through smoothly.

[0048] During specific implementation, when the hydraulic cylinder 9 retracts, due to the fact that the pawl 3 can only rotate clockwise, the pawl 3 will rotate along with the movement of the pawl device. When retracted to the designed position, the pawl 3 will automatically fall into the limiting hole 6 and the direction hole due to gravity. When the hydraulic cylinder 9 extends, the pawl 3 is limited by the first end of the limiting hole 6 to provide a reaction force for the hydraulic cylinder 9.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A pawl device for sliding a steel beam, characterized in that: include: A bottom plate, the bottom plate being slidably disposed on the top surface of the slide beam, the top surface of the slide beam being evenly provided with a plurality of square holes; A hydraulic cylinder jacking mechanism, the hydraulic cylinder jacking mechanism is arranged at one end of the upper side of the base plate, at least one limiting hole is provided on the end of the base plate away from the hydraulic cylinder jacking mechanism, the fixed end of the hydraulic cylinder jacking mechanism is fixedly connected to the base plate, and the driving end is detachably connected to the sliding member at the bottom end of the steel beam; At least one limiting mechanism is provided in a one-to-one correspondence with the limiting holes, and the limiting mechanism is located on the upper side of the corresponding limiting hole, and is used to provide a reaction force for the hydraulic cylinder jacking mechanism when the steel beam slides.

2. A pawl device for sliding a steel beam according to claim 1, characterized in that: The limiting holes are arranged in pairs, and each pair of the limiting holes is symmetrically arranged on both sides of the hydraulic cylinder jacking mechanism.

3. A pawl device for sliding a steel beam according to claim 2, characterized in that: There are two limiting holes, which are symmetrically arranged on both sides of the hydraulic cylinder jacking mechanism.

4. The pawl device for sliding a steel beam according to claim 1, characterized in that: The hydraulic cylinder jacking mechanism includes: A hydraulic cylinder jacking seat, wherein the hydraulic cylinder jacking seat is fixedly connected to one side of the upper end of the base plate; A hydraulic cylinder, wherein the fixed end of the hydraulic cylinder is mounted on the hydraulic cylinder jacking seat, and the movable end is detachably connected to the sliding member at the bottom end of the steel beam.

5. The pawl device for sliding a steel beam according to claim 4, characterized in that: Each of the limiting mechanisms comprises: Two webs, the two webs being symmetrically arranged on both sides of the limiting hole; A pawl is located at one end close to the hydraulic cylinder top seat, and the first end is rotatably connected to the two webs, and the second end is a free end and can extend into the limiting hole.

6. A pawl device for sliding a steel beam according to claim 5, characterized in that: The hydraulic cylinder is connected to the hydraulic cylinder top seat through a hydraulic cylinder top pin shaft, and the web is connected to the pawl through a pawl pin shaft.

7. The pawl device for sliding a steel beam according to claim 6, characterized in that: The end of the limiting hole close to the hydraulic cylinder top seat is the first end of the limiting hole, and the end away from the hydraulic cylinder top seat is the second end of the limiting hole. The distance from the center of the pawl pin shaft to the second end of the pawl is a, the distance from the center of the pawl pin shaft to the first end of the limiting hole is b, the distance from the center of the pawl pin shaft to the second end of the limiting hole is c, and b <a<c。

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