Quick dismantling device for prefabricated box girder end mold

Abstract

The utility model relates to the technical field of bridge construction, in particular to a quick dismantling device for an end mold of a prefabricated box girder, which comprises a support frame, a prefabricated mold is arranged in the middle of the top end of the support frame, a stress plate is arranged at one end of the prefabricated mold, and a plurality of through holes are uniformly formed in the middle of the stress plate. A hydraulic jack is arranged on one side of the through hole; a reinforcing rib is arranged on one side of the end formwork, a plurality of reinforcing protruding blocks are evenly arranged on the edge of one side of the end formwork, a plurality of limiting blocks are evenly arranged on the edge of the other side of the end formwork, a guide block is arranged on the other side of each limiting block, and a fixing hole is formed in the middle of each guide block. Fixing bolts are arranged in the fixing holes; the device has the beneficial effects that through the arrangement of the stress plate, the stress plate is fixedly connected to one end of the prefabricated mold during use, the effect of protecting end concrete is achieved through a supporting point provided by the stress plate, and then the integrity of a prefabricated bridge is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a device for quickly removing the end formwork of precast box girders. Background Technique

[0002] Bridge construction refers to the process of building a bridge according to the design content; mainly including bridge construction technology, construction organization, construction management, construction quality, etc.

[0003] A device for quickly removing the end formwork of precast box girders disclosed in the Chinese utility model patent application publication specification CN 214383189U. The device for quickly removing the end formwork of precast box girders provided by the utility model includes an end formwork, a plurality of reaction frames, a plurality of hydraulic jacks and a pumping station. The end formwork has end formwork rib plates. The reaction frames are detachably connected to the end formwork rib plates. The hydraulic jacks are arranged corresponding to the reaction frames and are arranged on the reaction frames. The pumping station is connected to the hydraulic jacks and is used to apply pressure to the hydraulic jacks to realize the separation of the end concrete from the end formwork. The device for quickly removing the end formwork of precast box girders of the utility model can better ensure the force balance of the overall end formwork and prevent the concrete from being damaged due to uneven force on the formwork. The device for quickly removing the end formwork of precast box girders uses the end concrete as the force support point of the hydraulic jack, so it is easy to damage the end concrete of the precast bridge during the process of removing the end formwork, which has no substantial difference from most of the removals using crowbars. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for quickly removing the end formwork of precast box girders to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for quickly removing the end formwork of precast box girders, including:

[0007] A support frame, in the middle of the top of the support frame is provided with a precast mold. One end of the precast mold is provided with a stress plate. A number of through holes are evenly arranged in the middle of the stress plate. A number of limit holes are evenly arranged on one side of the stress plate. A hydraulic jack is arranged on one side of the through hole.

[0008] An end formwork, on one side of the end formwork is provided with reinforcing ribs. A number of reinforcing bumps are evenly arranged at the edge of one side of the end formwork. A number of limit blocks are evenly arranged at the edge of the other side of the end formwork. A guide block is arranged on the other side of the limit block. A fixing hole is arranged in the middle of the guide block. A fixing bolt is arranged inside the fixing hole.

[0009] Preferably, a precast mold is fixedly connected to the top end of the support frame, and a stress plate is fixedly connected to one end of the precast mold.

[0010] Preferably, the precast mold is composed of a bottom plate, a left side plate and a right side plate. The bottom end of the bottom plate is fixedly connected to the top end of the support frame. One side of the bottom plate is fixedly connected to the left side plate, and the other side of the bottom plate is fixedly connected to the right side plate.

[0011] Preferably, a plurality of through holes are evenly formed in the middle of the stress plate, and a plurality of limiting holes are evenly formed at the edge of one side of the stress plate.

[0012] Preferably, a hydraulic jack is fixedly connected to one side of the through hole, and the output end of the hydraulic jack is slidably connected inside the through hole.

[0013] Preferably, an end formwork is fixedly connected to the other side of the stress plate, and a reinforcing rib is fixedly connected to one side of the end formwork.

[0014] Preferably, a plurality of reinforcing bumps are evenly and fixedly connected to the edge of one side of the end formwork, and the reinforcing bumps correspond to the through holes.

[0015] Preferably, a plurality of limiting blocks are evenly and fixedly connected to the edge of the other side of the end formwork, and a guiding block is fixedly connected to the other side of the limiting block.

[0016] Preferably, the limiting block is clamped inside the limiting hole, and a fixing hole is formed in the middle of the guiding block.

[0017] Preferably, a fixing bolt is inserted into the middle of the fixing hole, and the other end of the fixing bolt penetrates through the limiting hole and is locked by a fixing nut.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] Through the setting of the stress plate, when in use, the stress plate is fixedly connected to one end of the precast mold. A plurality of hydraulic jacks are evenly and fixedly connected to one side of the stress plate. When the end formwork is removed, first remove the fixing bolts, and then start the hydraulic jacks simultaneously. The output ends of the hydraulic jacks will extend out from the inside of the through holes and squeeze the end formwork until the end formwork is separated from the end concrete of the precast bridge, so as to achieve the effect of protecting the end concrete, and further ensure the integrity of the precast bridge; through the setting of the limiting holes and the limiting blocks, when in use, a plurality of limiting holes are evenly formed in one side of the stress plate, and a plurality of limiting blocks are fixedly connected to one side of the end formwork. During installation, the limiting blocks are clamped inside the limiting holes, so as to achieve the effect that the end formwork can be installed more flatly, and further achieve the effect that the end formwork is more evenly stressed during the disassembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2 is a structural schematic diagram of the precast mold of the present utility model;

[0022] Figure 3 is a structural schematic diagram of the end template of the present utility model;

[0023] Figure 4 is a structural schematic diagram of the stress plate of the present utility model;

[0024] Figure 5 is a structural schematic diagram of the hydraulic jack of the present utility model.

[0025] In the figure: 1, support frame; 2, precast mold; 201, bottom plate; 202, left side plate; 203, right side plate; 3, stress plate; 301, through hole; 302, limit hole; 4, hydraulic jack; 5, end template; 501, reinforcing rib; 502, reinforcing bump; 6, limit block; 7, guiding block; 701, fixing hole; 8, fixing bolt. Specific embodiments

[0026] In order to more clearly illustrate the overall concept of the present utility model, the following will be further described in detail by way of examples in combination with the accompanying drawings of the specification

[0027] Embodiment 1:

[0028] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a device for quickly removing the end mold of a precast box girder, including:

[0029] A support frame 1, in the middle of the top of the support frame 1 is provided with a precast mold 2, at one end of the precast mold 2 is provided with a stress plate 3, a number of through holes 301 are evenly arranged in the middle of the stress plate 3, a number of limit holes 302 are evenly arranged on one side of the stress plate 3, and a hydraulic jack 4 is arranged on one side of the through hole 301;

[0030] An end template 5, on one side of the end template 5 is provided with a reinforcing rib 501, a number of reinforcing bumps 502 are evenly arranged at the edge of one side of the end template 5, a number of limit blocks 6 are evenly arranged at the edge of the other side of the end template 5, on the other side of the limit block 6 is provided with a guiding block 7, in the middle of the guiding block 7 is provided with a fixing hole 701, and a fixing bolt 8 is arranged inside the fixing hole 701.

[0031] By providing the reinforcing ribs 501 and the reinforcing bumps 502, during use, the reinforcing ribs 501 are fixedly connected to one side of the end formwork 5. A plurality of reinforcing bumps 502 are uniformly and fixedly connected to the edge of one side of the end formwork 5, and the reinforcing bumps 502 correspond to the through holes 301. Thus, when the hydraulic jack 4 squeezes the end formwork 5, the end formwork 5 has higher strength, and further, the end formwork 5 is easier to remove during the removal process.

[0032] Embodiment 2:

[0033] As Figures 2 to 5 shown, the structure of the precast box girder end formwork rapid removal device disclosed in Embodiment 2 of the present utility model is basically the same as that in Embodiment 1, and the difference lies in:

[0034] A precast mold 2 is fixedly connected to the top end of the support frame 1, and a stress plate 3 is fixedly connected to one end of the precast mold 2.

[0035] The precast mold 2 is composed of a bottom plate 201, a left side plate 202, and a right side plate 203. The bottom end of the bottom plate 201 is fixedly connected to the top end of the support frame 1. A left side plate 202 is fixedly connected to one side of the bottom plate 201, and a right side plate 203 is fixedly connected to the other side of the bottom plate 201.

[0036] A plurality of through holes 301 are uniformly formed in the middle of the stress plate 3, and a plurality of limit holes 302 are uniformly formed in the edge of one side of the stress plate 3.

[0037] A hydraulic jack 4 is fixedly connected to one side of the through hole 301, and the output end of the hydraulic jack 4 is slidably connected inside the through hole 301.

[0038] By providing the stress plate 3, during use, the stress plate 3 is fixedly connected to one end of the precast mold 2. A plurality of hydraulic jacks 4 are uniformly and fixedly connected to one side of the stress plate 3. When removing the end formwork, first remove the fixing bolts 8, and then simultaneously start the hydraulic jacks 4. The output ends of the hydraulic jacks 4 will extend out from inside the through holes 301 and squeeze the end formwork 5 until the end formwork 5 is separated from the end concrete of the precast bridge, thereby achieving the effect of protecting the end concrete and further ensuring the integrity of the precast bridge.

[0039] Embodiment 3:

[0040] As Figure 3 shown, the structure of the precast box girder end formwork rapid removal device disclosed in Embodiment 3 of the present utility model is basically the same as that in Embodiment 2, and the difference lies in:

[0041] The other side of the stress plate 3 is fixedly connected to the end formwork 5, and a reinforcing rib 501 is fixedly connected to one side of the end formwork 5.

[0042] A number of reinforcing bumps 502 are uniformly and fixedly connected to the edge of one side of the end template 5, and the reinforcing bumps 502 correspond to the through holes 301.

[0043] A number of limiting blocks 6 are uniformly and fixedly connected to the edge of the other side of the end template 5, and a guiding block 7 is fixedly connected to the other side of the limiting block 6.

[0044] The limiting block 6 is clamped inside the limiting hole 302, and a fixing hole 701 is formed in the middle of the guiding block 7.

[0045] A fixing bolt 8 is inserted into the middle of the fixing hole 701, and the other end of the fixing bolt 8 passes through the limiting hole 302 and is locked by a fixing nut.

[0046] Through the arrangement of the limiting hole 302 and the limiting block 6, a number of limiting holes 302 are uniformly formed on one side of the stress plate 3 during use, and a number of limiting blocks 6 are fixedly connected to one side of the end template 5. During installation, the limiting blocks 6 are clamped inside the limiting holes 302, so as to achieve the effect that the end template 5 can be installed more flatly, and further achieve the effect that the end template 5 is more evenly stressed during the disassembly process.

[0047] The specific solution of this scheme is as follows: When removing the end template 5, first remove the fixing bolt 8 from the inside of the fixing hole 701, and then start the hydraulic jack 4 at the same time. The output end of the hydraulic jack 4 will extend out from the inside of the through hole 301 and squeeze the end template 5 until the end template 5 is separated from the end concrete of the precast bridge. Through the arrangement of the stress plate 3, the stress plate 3 is fixedly connected to one end of the precast mold 2 during use, and a number of hydraulic jacks 4 are uniformly and fixedly connected to one side of the stress plate 3. By providing a support point through the stress plate 3, the effect of protecting the end concrete is achieved, and further the integrity of the precast bridge is ensured; Through the arrangement of the reinforcing ribs 501 and the reinforcing bumps 502, the reinforcing ribs 501 are fixedly connected to one side of the end template 5 during use, and a number of reinforcing bumps 502 are uniformly and fixedly connected to the edge of one side of the end template 5. The reinforcing bumps 502 correspond to the through holes 301, so as to achieve the effect that the end template 5 has higher strength when the hydraulic jack 4 squeezes the end template 5, and further achieve the effect that the end template 5 is more easily removed during the removal process; Through the arrangement of the limiting hole 302 and the limiting block 6, a number of limiting holes 302 are uniformly formed on one side of the stress plate 3 during use, and a number of limiting blocks 6 are fixedly connected to one side of the end template 5. During installation, the limiting blocks 6 are clamped inside the limiting holes 302, so as to achieve the effect that the end template 5 can be installed more flatly, and further achieve the effect that the end template 5 is more evenly stressed during the disassembly process.

[0048] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present utility model (including the claims) is limited to these examples; within the concept of the present utility model, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present utility model as described above, and for the sake of brevity, they are not provided in detail.

[0049] The present utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Prefabricated box beam end formwork rapid removal device, characterized in that: include: A support frame (1), wherein a prefabricated mold (2) is arranged in the middle of the top of the support frame (1), a stress plate (3) is arranged at one end of the prefabricated mold (2), a plurality of through holes (301) are evenly arranged in the middle of the stress plate (3), a plurality of limiting holes (302) are evenly arranged on one side of the stress plate (3), and a hydraulic jack (4) is arranged on one side of the through hole (301); An end template (5), wherein a reinforcing rib (501) is arranged on one side of the end template (5), a plurality of reinforcing protrusions (502) are evenly arranged at the edge of one side of the end template (5), a plurality of limit blocks (6) are evenly arranged at the edge of the other side of the end template (5), a guide block (7) is arranged on the other side of the limit block (6), a fixing hole (701) is arranged in the middle of the guide block (7), and a fixing bolt (8) is arranged inside the fixing hole (701).

2. The device for quickly removing the end formwork of a prefabricated box beam according to claim 1 is characterized in that: The top end of the support frame (1) is fixedly connected to a prefabricated mold (2), and one end of the prefabricated mold (2) is fixedly connected to a stress plate (3).

3. The device for quickly removing the end formwork of a prefabricated box beam according to claim 2 is characterized in that: The prefabricated mold (2) is composed of a bottom plate (201), a left side plate (202) and a right side plate (203); the bottom end of the bottom plate (201) is fixedly connected to the top end of the support frame (1); one side of the bottom plate (201) is fixedly connected to the left side plate (202); and the other side of the bottom plate (201) is fixedly connected to the right side plate (203).

4. The device for quickly removing the end formwork of a prefabricated box beam according to claim 2 is characterized in that: A plurality of through holes (301) are evenly provided in the middle of the stress plate (3), and a plurality of limiting holes (302) are evenly provided at the edge of one side of the stress plate (3).

5. The device for quickly removing the end formwork of a prefabricated box beam according to claim 4 is characterized in that: A hydraulic jack (4) is fixedly connected to one side of the through hole (301), and an output end of the hydraulic jack (4) is slidably connected to the inside of the through hole (301).

6. The device for quickly removing the end formwork of a prefabricated box beam according to claim 1 is characterized in that: The other side of the stress plate (3) is fixedly connected to an end template (5), and one side of the end template (5) is fixedly connected to a reinforcing rib (501).

7. The device for quickly removing the end formwork of a prefabricated box beam according to claim 6, characterized in that: A plurality of reinforcing protrusions (502) are evenly and fixedly connected to the edge of one side of the end template (5), and the reinforcing protrusions (502) correspond to the through holes (301).

8. The device for quickly removing the end formwork of a prefabricated box beam according to claim 7, characterized in that: A plurality of limit blocks (6) are evenly and fixedly connected to the edge of the other side of the end template (5), and a guide block (7) is fixedly connected to the other side of the limit block (6).

9. The device for quickly removing the end formwork of a prefabricated box beam according to claim 8, characterized in that: The limiting block (6) is clamped inside the limiting hole (302), and a fixing hole (701) is provided in the middle of the guiding block (7).

10. The device for quickly removing the end formwork of a prefabricated box beam according to claim 9, characterized in that: A fixing bolt (8) is inserted into the middle of the fixing hole (701), and the other end of the fixing bolt (8) passes through the limiting hole (302) and is locked by a fixing nut.

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