Steel truss girder bottom movable operation platform

Abstract

The utility model provides a steel truss girder bottom movable type operation platform which comprises two rails arranged in parallel, ground beams are arranged on the rails in a sliding mode, a horizontal truss is arranged between the two ground beams, and brake assemblies used for locking or releasing the ground beams and the rails are arranged at the ends of the ground beams. According to the utility model, the track is fixedly erected between the ends of the main beams at the bottom of the steel truss, and the two ends of the horizontal truss are matched with the track through the ground beams, so that the horizontal truss can move along with construction and can be quickly recycled according to the construction progress, and the construction efficiency is improved; in the construction process, the ground beam and the track can be locked through the brake assembly, the horizontal truss is prevented from moving in the construction process, the horizontal truss has high stability, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge engineering, and particularly relates to a movable operation platform at the bottom of a steel truss beam. Background Technique

[0002] At present, during the assembly construction of a steel truss beam on a bridge position support, a temporary operation platform needs to be set below it to provide an operation space for construction workers.

[0003] As in the prior art, the Chinese utility model patent document with the authorization publication number of CN216840496U discloses a suspended temporary operation platform at the bottom of a steel truss beam, which is suspended and fixed below the steel truss during use to provide a construction bearing space for construction workers, but it cannot move along with the progress of construction; the Chinese utility model patent document with the authorization publication number of CN205636517U discloses an operation platform for the installation construction of a steel truss beam, which can move along the left and right tracks along with the progress of construction through a sliding trolley, but it cannot be fixed to the track, and it is easy to slide during construction, affecting the stability of the platform and posing a safety hazard.

[0004] Therefore, it is necessary to design a movable operation platform at the bottom of a steel truss beam that can move along with the progress of construction, has high stability, and reduces safety hazards to solve the current technical problems. Summary of the Invention

[0005] Aiming at the deficiencies in the prior art, the utility model provides a movable operation platform at the bottom of a steel truss beam that can move along with the progress of construction, has high stability, and reduces safety hazards.

[0006] The technical solution of the utility model is as follows: a movable operation platform at the bottom of a steel truss beam includes two parallel tracks. A ground beam is slidably arranged on the tracks. A horizontal truss is arranged between the two ground beams. A braking component is arranged at the end of the ground beam for locking or releasing the connection between the ground beam and the tracks. The braking component has moving plates symmetrically arranged on both sides of the tracks. The moving plates are slidably arranged at the end of the ground beam in a horizontal direction perpendicular to the tracks. A clamping plate corresponding to the tracks is fixedly arranged at the lower end of the moving plate. A driving mechanism is arranged at the end of the ground beam to drive the two moving plates to move synchronously closer to or away from each other to lock or release the tracks.

[0007] The driving mechanism has a bidirectional screw rotatably arranged at the end of the ground beam. The bidirectional screw has two sections of external threads with opposite spiral directions corresponding to the two moving plates respectively. The moving plates are threadedly connected to the bidirectional screw.

[0008] A support base corresponding to the track is fixedly arranged at the end of the ground beam. The middle part of the bidirectional screw is rotatably connected to the support base, and one end of the bidirectional screw is provided with a handle.

[0009] Guide rods parallel to the bidirectional screw are symmetrically arranged up and down inside the support base, and the moving plate is slidably connected to the guide rods.

[0010] Baffles are fixedly arranged at the ends of the guide rods, and the bidirectional screw is rotatably connected to the baffles.

[0011] An anti-slip plate is fixedly arranged on one side of the clamping plate close to the track.

[0012] The anti-slip plate is a rubber plate.

[0013] A load-bearing beam is arranged at the bottom of the track, and the track is fixedly welded to the top of the load-bearing beam.

[0014] The load-bearing beam is an H-shaped steel, and the track is a channel steel track.

[0015] The horizontal truss has a bottom frame. Side frames are fixedly arranged on both sides of the top of the bottom frame. Connecting rods are fixedly arranged between the two ends of the two side frames, and the ends of the side frames are fixedly welded to the ground beam.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) In the present utility model, the track is fixedly installed between the ends of the main beams at the bottom of the steel truss beam. The two ends of the horizontal truss are matched with the track through the ground beam, can move along with the construction, can be quickly recycled according to the construction process, and improve the construction efficiency;

[0018] (2) During the construction process, the ground beam and the track can be locked through the braking assembly, avoiding the horizontal truss from moving during the construction process, making the horizontal truss have high stability and reducing potential safety hazards;

[0019] (3) The driving mechanism drives the two moving plates to drive the two clamping plates to approach or move away synchronously, enabling the two clamping plates to simultaneously abut against or separate from both sides of the track, realizing the locking or release between the ground beam and the track, and ensuring the balance of forces on both sides of the track and its stability. Description of the Drawings

[0020] Figure 1 It is one of the structural schematic diagrams of the movable working platform at the bottom of the steel truss beam in the present utility model.

[0021] Figure 2 is Figure 1 The partial enlarged view at A in

[0022] Figure 3 This is the second structural schematic diagram of the movable working platform at the bottom of the steel truss beam in the present utility model.

[0023] Figure 4 It is Figure 3 the partial enlarged view at position B in Specific embodiments

[0024] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and does not constitute any limitation to the present utility model and its application or use. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present utility model thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the compositions of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0025] The "first", "second" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "including" or "comprising" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] As Figures 1 to 4As shown in the figure, a movable working platform at the bottom of a steel truss girder includes two parallel tracks 4. A ground beam 2 is slidably arranged on the tracks 4. A horizontal truss 1 is arranged between the two ground beams 2. A braking assembly 5 for locking or releasing the connection between the ground beam 2 and the tracks 4 is arranged at the end of the ground beam 2. The braking assembly 5 has moving plates 57 symmetrically arranged on both sides of the tracks. The moving plates 57 are slidably arranged at the end of the ground beam 2 in a horizontal direction perpendicular to the tracks 4. A pulley 6 cooperating with the tracks 4 is rotatably arranged at the bottom of the ground beam 2. A clamping plate 54 corresponding to the tracks 4 is fixedly arranged at the lower end of the moving plate 57. A driving mechanism for driving the two moving plates 57 to move closer or farther synchronously to lock or release the tracks 4 is arranged at the end of the ground beam 2. In this embodiment, the tracks 4 are fixedly arranged between the ends of the main girders at the bottom of the steel truss girder. The two ends of the horizontal truss 1 cooperate with the tracks 4 through the ground beams 2, and can move along with the construction progress, can be quickly turned around and used according to the construction process, and improve the construction efficiency. During the construction process, the braking assembly 5 can lock the connection between the ground beam 2 and the tracks 4, avoid the horizontal truss 1 from moving during the construction process, make the horizontal truss 1 have high stability, and reduce potential safety hazards. The driving mechanism drives the two moving plates 57 to drive the two clamping plates 54 to move closer or farther synchronously, so that the two clamping plates 54 can be simultaneously abutted against or separated from both sides of the tracks 4, realizing the locking or releasing of the connection between the ground beam 2 and the tracks 4, and the two sides of the tracks 4 are stressed evenly, ensuring its stability.

[0027] In some embodiments, as a specific implementation manner of the driving mechanism, the driving mechanism has a bidirectional screw 53 rotatably arranged at the end of the ground beam 2. The bidirectional screw 53 has two sections of external threads with opposite spiral directions corresponding to the two moving plates 57 respectively. The moving plates 57 are threadedly connected with the bidirectional screw 53. By rotating the bidirectional screw 53 forward and backward, the two moving plates 57 are respectively threadedly connected with the bidirectional screw 53 through the two sections of external threads with opposite spiral directions. Through the cooperation of the threaded structure, the two moving plates 57 can be driven to drive the two clamping plates 54 to move closer or farther.

[0028] In some embodiments, a support seat 51 corresponding to the tracks 4 is fixedly arranged at the end of the ground beam 2. The middle of the bidirectional screw 53 is rotatably connected with the support seat 51. One end of the bidirectional screw 53 has a handle 55, and the bidirectional screw 53 can be conveniently rotated through the handle 55.

[0029] In some embodiments, guide rods 52 parallel to the bidirectional screw 53 are symmetrically arranged up and down inside the support seat 51. The bidirectional screw 53 and the guide rods 52 are installed inside the support seat 51 in a horizontal direction perpendicular to the tracks 4. The moving plates 57 are slidably connected with the guide rods 52.

[0030] In some embodiments, a baffle 58 is fixedly arranged at the end of the guide rod 52. The bidirectional screw rod 53 is rotatably connected to the baffle 58. The baffle 58 limits the moving plate 57 at one end of the guide rod 52 to prevent the moving plate 57 from slipping off the guide rod 52.

[0031] In some embodiments, an anti-slip plate 56 is fixedly arranged on one side of the clamping plate 54 close to the track 4. The anti-slip plate 56 has a large friction coefficient and wear resistance, and can improve the stability of the clamping plate 54 clamped on both sides of the track 4. Specifically, the anti-slip plate 56 is a rubber plate.

[0032] In some embodiments, a load-bearing beam 5 is arranged at the bottom of the track 4. The track 4 is fixedly welded to the top of the load-bearing beam 5. The load-bearing beam 5 provides support for the track 4 at the bottom. Specifically, the load-bearing beam 5 is an H-shaped steel, and the track 4 is a channel steel track.

[0033] In some embodiments, the horizontal truss 1 has a chassis 11. Side frames 12 are fixedly arranged on both sides of the top of the chassis 11. Connecting rods 13 are fixedly arranged between the two ends of the two side frames 12. The end of the side frame 12 is fixedly welded to the ground beam 2. Wood boards can be laid on the top of the chassis 11.

[0034] So far, the embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details well known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed here based on the above description.

[0035] The above-described embodiments only represent some implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A movable working platform with a steel truss bottom, characterized in that: It comprises two tracks arranged in parallel, a ground beam is slidably arranged on the tracks, a horizontal truss is arranged between the two ground beams, and a brake assembly for locking or releasing the ground beam with the tracks is arranged at the end of the ground beam; The brake assembly has movable plates symmetrically arranged on both sides of the track. The movable plates are slidably arranged at the ends of the ground beams along a horizontal direction perpendicular to the track. A clamping plate corresponding to the track is fixedly arranged at the lower end of the movable plate. A driving mechanism is arranged at the end of the ground beam to drive the two movable plates to move closer or farther synchronously to lock or release the track.

2. The steel truss bottom movable working platform according to claim 1 is characterized in that: The driving mechanism comprises a bidirectional screw rotatably arranged at the end of the ground beam, the bidirectional screw comprises two sections of external threads with opposite spiral directions corresponding to the two moving plates respectively, and the moving plate is threadedly connected to the bidirectional screw.

3. The steel truss bottom movable work platform according to claim 2, characterized in that: A support seat corresponding to the track is fixedly arranged at the end of the ground beam, the middle part of the bidirectional screw is rotatably connected to the support seat, and one end of the bidirectional screw is provided with a handle.

4. The steel truss bottom movable work platform according to claim 3, characterized in that: A guide rod parallel to the bidirectional screw rod is symmetrically arranged inside the support seat, and the movable plate is slidably connected to the guide rod.

5. The steel truss bottom movable work platform according to claim 4, characterized in that: A baffle is fixedly arranged at the end of the guide rod, and the bidirectional screw is rotatably connected to the baffle.

6. The steel truss bottom movable work platform according to claim 2, characterized in that: An anti-skid plate is fixedly arranged on one side of the clamping plate close to the track.

7. The steel truss bottom movable work platform according to claim 6, characterized in that: The anti-skid plate is a rubber plate.

8. The steel truss bottom movable work platform according to claim 1, characterized in that: A load-bearing beam is arranged at the bottom of the track, and the track is welded and fixed to the top of the load-bearing beam.

9. The steel truss bottom movable work platform according to claim 8, characterized in that: The load-bearing beam is an H-shaped steel, and the track is a channel steel track.

10. The steel truss bottom movable work platform according to claim 1, characterized in that: The horizontal truss has a bottom frame, side frames are fixedly arranged on both sides of the top of the bottom frame, a connecting rod is fixedly arranged between the two ends of the two side frames, and the ends of the side frames are welded and fixed to the ground beams.

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