Trolley for moving door-shaped pier of movable formwork

Abstract

According to the movable door type pier trolley for the movable formwork, in the mold opening state before the movable formwork moves longitudinally, when fine adjustment needs to be conducted on the left-right direction of a main beam, a trolley driving device drives the trolley to move left and right relative to a base, and the trolley slides relative to the base through a sliding device, so that adjustment of the left-right position of the main beam is achieved. When the movable formwork moves longitudinally, the main beam slides relative to the sliding plate, the structure that the trolley slides on the base is adopted, the vertical layered design in the height direction is achieved, and enough clearance is provided for the foundation meeting the rigidity and strength of the main beam under the condition that the special space of the pier of the door-shaped pier structure is limited.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction machinery, in particular to a movable formwork movable door-type pier trolley. Background Art

[0002] The mobile formwork bridge machine is a construction machine that comes with its own formwork and uses a cap or pier as support to cast the bridge on site. Its main features are: good construction quality, simple construction operation, low cost, etc. It has been widely used in the construction of continuous beams of highway bridges and railway bridges, and is a more advanced construction method. The traditional mobile formwork trolley is installed above the corbel beam to provide a support platform and power for the main beam, but due to the special space limitation of the portal pier structure, the traditional mobile formwork trolley cannot provide sufficient clearance requirements on the basis of meeting the stiffness and strength of the main beam. Summary of the invention

[0003] The technical solution adopted by the utility model to overcome the technical problems is:

[0004] A movable formwork movable door-type pier trolley, comprising:

[0005] The base is mounted on the top of the pier by means of a fixing device;

[0006] The trolley is slidably mounted on the base in the left and right directions through a sliding device, and guide wheels are rotatably mounted on the left and right ends of the trolley respectively;

[0007] A trolley driving device is arranged on the base and is used to drive the trolley to move in the left and right directions;

[0008] Two slide plates are installed on the upper end of the trolley, and the main beam of the movable mold frame is placed on the slide plates, and the main beam is located between the two guide wheels.

[0009] Furthermore, the fixing device comprises threaded steel bars embedded and fixed in the pier, the axis of the threaded steel bars is arranged in the vertical direction, and the upper end of the threaded steel bars passes through the base and is locked and fixed by a nut.

[0010] Furthermore, the above-mentioned sliding device includes buckle plates fixed to the front and rear sides of the lower end of the trolley by bolts I respectively, and the buckle plates are located at the lower end of the flange on the same side of the base. A C-shaped guide groove is formed between the buckle plate and the lower end surface of the trolley, and the flanges at the front and rear ends of the base are respectively inserted into the corresponding guide grooves on the same side.

[0011] Furthermore, the above-mentioned trolley driving device includes a cylinder installed on the base, the axis of the cylinder is horizontally arranged in the left and right direction, the tail end of the cylinder is hingedly connected to the base through a pin shaft I, and the head end of the piston rod of the cylinder is hingedly connected to the trolley through a pin shaft II.

[0012] To facilitate replacement, guide rails are provided at the front and rear ends and the outer end of the above-mentioned skateboard, and a guide groove matching the guide rails is provided on the trolley. The skateboard is inserted into the guide groove through the guide rails, and the baffle is provided at the inner end of the skateboard, and the lower end of the baffle is fixed to the trolley by bolt II.

[0013] In order to facilitate the operation of construction workers, it also includes a hanging ear and a safety ladder cage arranged at the front end of the base. A hook is installed at the upper end of the safety ladder cage, and a support leg is installed in the horizontal direction at the lower end. The safety ladder cage is installed on the hanging ear through the hook, and the support leg is in contact with the front end surface of the pier.

[0014] In order to prevent the main beam from overturning, it also includes a support arranged on the trolley and a pressure plate installed on the support through a pin shaft III. When the pressure plate is rotated to a horizontal state, it is located above the side end flange of the main beam. The locking pin is inserted into the pressure plate and the support in turn to lock the horizontal pressure plate relative to the support.

[0015] The beneficial effect of the utility model is that in the mold opening state before the movable mold frame moves longitudinally, when the left and right directions of the main beam need to be fine-tuned, the trolley driving device drives the trolley to move left and right relative to the base, and the trolley slides relative to the base through the sliding device to adjust the left and right positions of the main beam. When the movable mold frame moves longitudinally, the main beam slides relative to the slide plate, and the structure in which the trolley slides on the base is adopted to realize the upper and lower layered design in the height direction, so as to provide sufficient clearance to meet the rigidity and strength of the main beam under the special space-constrained conditions of the piers of the gate-type pier structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a side view structural schematic diagram of the utility model;

[0019] Figure 4 It is a side view structural diagram of the slide plate of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the baffle part of the utility model;

[0021] In the figure, 1. base 2. trolley 3. threaded steel 4. nut 5. cylinder 6. pin I 7. pin II 8. main beam 9. slide plate 10. pressure plate 11. pin III 12. locking pin 13. guide wheel 14. bridge pier 15. hanging ear 16. safety ladder cage 17. hook 18. leg 19. guide rail 20. guide groove 21. buckle plate 22. bolt I 23. baffle 24. bolt II. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1 To Attachment Figure 5 The utility model is further described.

[0023] A movable formwork frame movable portal pier trolley comprises: a base 1, which is mounted on the top of a bridge pier 14 through a fixing device; a trolley 2, which is mounted on the base 1 in a sliding manner along the left and right directions through a sliding device, and guide wheels 13 are respectively mounted on the left and right ends of the trolley 2 for rotation; a trolley driving device, which is arranged on the base 1 and is used to drive the trolley 2 to move along the left and right directions; two slide plates 9, which are mounted on the upper end of the trolley 2, and the main beam 8 of the movable formwork is placed on the slide plates 9, and the main beam 8 is located between the two guide wheels 13. The main beam 8 is placed on the slide plates 9, and in the mold opening state before the movable formwork is longitudinally moved, when the left and right directions of the main beam 8 need to be fine-tuned, the trolley driving device drives the trolley 2 to move left and right relative to the base 1, and the trolley 2 slides relative to the base 1 through the sliding device to adjust the left and right positions of the main beam 8. When the movable formwork moves longitudinally, the main beam 8 slides relative to the slide plate 9, and the structure in which the trolley 2 slides on the base 1 is adopted to realize the upper and lower layered design in the height direction, so as to provide sufficient clearance for the foundation of the rigidity and strength of the main beam 8 under the special space-constrained condition of the pier 14 of the gate-type pier structure.

[0024] The fixing device may be a structure as follows, which includes a threaded steel bar 3 embedded and fixed in the pier 14, the axis of the threaded steel bar 3 is arranged in the vertical direction, and the upper end of the threaded steel bar 3 passes through the base 1 and is locked and fixed by a nut 4. By embedding the threaded steel bar 3 and screwing the nut 4 on the head end of the threaded steel bar 3, the base 1 is fixed to the upper end of the pier 14, which is firmly fixed and easy to install and disassemble.

[0025] The sliding device may be of the following structure, which includes a gusset plate 21 fixed to the front and rear sides of the lower end of the trolley 2 by bolts Ⅰ 22 respectively, the gusset plate 21 is located at the lower end of the flange on the same side of the base 1, and a C-shaped guide groove is formed between the gusset plate 21 and the lower end surface of the trolley 2, and the flanges at the front and rear ends of the base 1 are respectively inserted into the corresponding guide grooves on the same side. By installing the gusset plate 21, a guide groove is formed at the lower end of the trolley 2, and the flanges at the front and rear ends of the base 1 are effectively used as guide rails, so that when the trolley 2 moves left and right, the flange of the base 1 is always in the guide groove, so that the trolley 2 can move smoothly and the trolley 2 will not be separated from the base 1.

[0026] The trolley driving device may be of the following structure, which includes a cylinder 5 mounted on the base 1, the axis of the cylinder 5 being arranged horizontally in the left-right direction, the tail end of the cylinder 5 being hingedly connected to the base 1 through a pin shaft Ⅰ 6, and the head end of the piston rod of the cylinder 5 being hingedly connected to the trolley 2 through a pin shaft Ⅱ 7. When the piston rod of the cylinder 5 is extended, it drives the trolley 2 to move along the base 1 to one side, and when the piston rod of the cylinder 5 is retracted, it drives the trolley 2 to move along the base 1 to the other side.

[0027] When the movable mold frame moves longitudinally, the main beam 8 will move relative to the slide plate 9, causing friction thereto, so the slide plate 9 is a vulnerable part. Therefore, further, guide rails 19 are provided at both the front and rear ends and the outer end of the slide plate 9, and a guide groove 20 matching the guide rail 19 is provided on the trolley 2. The slide plate 9 is inserted into the guide groove 20 through the guide rail 19, and the baffle plate 23 is provided at the inner end of the slide plate 9, and the lower end of the baffle plate 23 is fixed to the trolley 2 by bolts II 24. When the slide plate 9 is worn and needs to be replaced, the bolts II 24 are loosened and the baffle plate 23 is removed. Since the slide plate 9 is inserted into the guide groove 20 on the trolley 2 through the guide rail 19, the slide plate 9 can be pulled out from the inner end. After the new slide plate 9 is inserted again, the baffle plate 23 is fixed by bolts II 24. The baffle plate 23 blocks the inner side of the slide plate 9 and prevents it from sliding out of the trolley 2.

[0028] Preferably, the base 1 further comprises a hanging ear 15 and a safety cage 16, the upper end of the safety cage 16 is provided with a hook 17, and the lower end thereof is provided with a support leg 18 in a horizontal direction, the safety cage 16 is hung on the hanging ear 15 by the hook 17, and the support leg 18 is in contact with the front end surface of the pier 14. The safety cage 16 can be conveniently fixed on the base 1, and construction personnel can perform safe and reliable operations in the safety cage 16.

[0029] Furthermore, it also includes a support provided on the trolley 2, and a pressure plate 10 rotatably mounted on the support through a pin shaft III 11. When the pressure plate 10 is rotated to a horizontal state, it is located above the side flange of the main beam 8. The locking pin 12 is inserted into the pressure plate 10 and the support in sequence to lock and fix the pressure plate 10 in a horizontal state relative to the support. By providing the pressure plate 10, the upper end of the flange of the main beam 8 is blocked. When the main beam 8 overturns, the flange contacts the pressure plate 10, which can effectively prevent the main beam 8 from overturning.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the utility model.

Claims

1. A mobile formwork mobile door-type pier trolley, characterized in that: include: A base (1) is mounted on the top of the pier (14) via a fixing device; The trolley (2) is slidably mounted on the base (1) in the left-right direction by means of a sliding device, and guide wheels (13) are rotatably mounted on the left and right ends of the trolley (2); A trolley driving device, disposed on the base (1), and used to drive the trolley (2) to move in a left-right direction; Two slide plates (9) are mounted on the upper end of the trolley (2), and a main beam (8) of the movable mold frame is placed on the slide plates (9), wherein the main beam (8) is located between the two guide wheels (13).

2. The movable formwork movable portal pier trolley according to claim 1 is characterized in that: The fixing device comprises a threaded steel bar (3) pre-buried and fixed in the bridge pier (14), the axis of the threaded steel bar (3) being arranged in a vertical direction, and the upper end of the threaded steel bar (3) passing through the base (1) is locked and fixed by a nut (4).

3. The movable formwork movable portal pier trolley according to claim 1 is characterized in that: The sliding device comprises a gusset plate (21) fixed to the front and rear sides of the lower end of the trolley (2) by bolts I (22), the gusset plate (21) is located at the lower end of the flange on the same side of the base (1), and a C-shaped guide groove is formed between the gusset plate (21) and the lower end surface of the trolley (2), and the flanges at the front and rear ends of the base (1) are respectively inserted into the corresponding guide grooves on the same side.

4. The movable formwork movable portal pier trolley according to claim 1, characterized in that: The trolley driving device comprises an oil cylinder (5) mounted on a base (1), the axis of the oil cylinder (5) being arranged horizontally in the left-right direction, the tail end of the oil cylinder (5) being hingedly connected to the base (1) via a pin shaft I (6), and the head end of the piston rod of the oil cylinder (5) being hingedly connected to the trolley (2) via a pin shaft II (7).

5. The movable formwork movable portal pier trolley according to claim 1 is characterized in that: The front and rear ends and the outer end of the slide plate (9) are provided with guide rails (19), the trolley (2) is provided with a guide groove (20) matching the guide rail (19), the slide plate (9) is inserted into the guide groove (20) through the guide rail (19), the baffle plate (23) is provided at the inner end of the slide plate (9), and the lower end of the baffle plate (23) is fixed to the trolley (2) by bolts II (24).

6. The movable formwork movable portal pier trolley according to claim 1, characterized in that: It also includes a hanging ear (15) and a safety ladder cage (16) arranged at the front end of the base (1), wherein a hook (17) is installed at the upper end of the safety ladder cage (16), and a support leg (18) is installed at the lower end in a horizontal direction. The safety ladder cage (16) is hooked and installed on the hanging ear (15) through the hook (17), and the support leg (18) is in contact with the front end surface of the pier (14).

7. The movable formwork movable portal pier trolley according to claim 1, characterized in that: It also includes a support arranged on the trolley (2), and a pressure plate (10) rotatably mounted on the support via a pin shaft III (11). When the pressure plate (10) is rotated to a horizontal state, it is located above the side end flange of the main beam (8). After the locking pin (12) is inserted into the pressure plate (10) and the support in sequence, the pressure plate (10) in the horizontal state is locked and fixed relative to the support.

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