CN221338896U - Automatic locking and unlocking device for box girder internal mold pull rod - Google Patents
Automatic locking and unlocking device for box girder internal mold pull rod Download PDFInfo
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- CN221338896U CN221338896U CN202323240148.6U CN202323240148U CN221338896U CN 221338896 U CN221338896 U CN 221338896U CN 202323240148 U CN202323240148 U CN 202323240148U CN 221338896 U CN221338896 U CN 221338896U
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- rod
- supporting plate
- pull rod
- box girder
- locking
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- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Moulds, Cores, Or Mandrels (AREA)
Abstract
The utility model discloses an automatic locking and unlocking device for a box girder internal mold pull rod, which relates to the technical field of box girder internal molds and comprises a lower mold main body and an upper movable mold which are mutually hinged, wherein a hollow pull rod is arranged between the lower mold main body and the upper movable mold, and a plurality of fixed shafts are uniformly arranged on the side parts of the hollow pull rod. According to the utility model, the control knob is rotated to drive the moving plate to horizontally move left and right, so that the locking inserting rod can be driven to move in or out of the first inserting hole and the second inserting hole, and the upper supporting plate and the lower supporting plate are fixed or loosened, so that the upper supporting plate and the lower supporting plate are positioned on the same vertical line to always prop up the lower die main body and the upper movable die, or the upper supporting plate and the lower supporting plate are in a bending state to fold the lower die main body and the upper movable die, a worker is not required to drill into the box girder inner die, a large number of bolts are sequentially screwed for locking or unlocking, the operation is simple and convenient, time and labor are saved, the construction efficiency is improved, and the safety is good.
Description
Technical Field
The utility model relates to the technical field of box girder internal molds, in particular to an automatic locking and unlocking device for a box girder internal mold pull rod.
Background
The box girder is one of the middle girders of bridge engineering, the inside is hollow, and flanges are arranged on two sides of the upper part, which is similar to a box, thus obtaining the name. The shaping of roof beam centre form relies on the centre form mould to realize, and the centre form height is less relatively, and the mould interior space is narrow and small, in order to be convenient for install and demolish, can use the roof beam centre form pull rod to regard as the support piece of roof beam centre form generally, from this save production, time of construction and reduction manpower consumption.
At present, in the process of using the box girder internal mold pull rod, the internal mold pull rod is generally locked or unlocked through bolts, when the internal mold pull rod is locked or unlocked, a worker is required to drill into the box girder internal mold, a large number of bolts are screwed in sequence through tools, the operation is complicated and time-consuming, the use is inconvenient, and a large safety risk exists, so that the application provides an automatic locking and unlocking device for the box girder internal mold pull rod, which aims to solve the problems.
Disclosure of utility model
The application aims to provide an automatic locking and unlocking device for a box girder internal mold pull rod, which aims to solve the problems that in the prior art, a worker is required to drill into a box girder internal mold and use tools to sequentially screw a large number of bolts to lock or unlock, the operation is complicated and time-consuming, and the use is inconvenient.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides an automatic locking unlocking device of roof beam centre form pull rod, includes the lower mould main part and the last movable mould that articulated set up each other, the lower mould main part with go up and be provided with hollow pull rod between the movable mould, a plurality of fixed axles are evenly installed to the lateral part of hollow pull rod, a plurality of go up all rotate on the fixed axle and cup joint last fagging and lower fagging, go up the fagging with the tip that keeps away from each other of fagging all rotates and installs the connecting plate, two the tip that the connecting plate kept away from each other respectively with the bottom inner wall of lower mould main part with the top inner wall of last movable mould articulates mutually, be provided with a plurality of locking subassembly on the hollow pull rod, locking subassembly is including rotating the horizontal double-screw bolt of installing on the hollow pull rod lateral part inner wall, the line has cup jointed the movable plate on the horizontal double-screw bolt, two locking pull rods are installed to the lateral part of movable plate, two first jacks have been seted up to the lateral part of going up of fagging, the tip of locking rod extends to hollow pull rod is outer and runs through in proper order first jack, the control rod changes the unit, installs the horizontal rotary rod, the control unit has installed the horizontal rotary rod.
Preferably, the gear transmission unit comprises a plurality of first bevel gears sleeved on the control rotating rod, the end parts of the horizontal studs are respectively provided with a second bevel gear, and the first bevel gears are respectively meshed with the second bevel gears.
Preferably, the horizontal guiding unit comprises two horizontal guide rods arranged on the inner wall of the side part of the hollow pull rod, and the moving plate is sleeved on the two horizontal guide rods in a sliding manner.
Preferably, the control assembly comprises a hexagonal connecting rod arranged on the end part of the control rotating rod, a control knob is sleeved on the hexagonal connecting rod in a sliding manner, an anti-falling stop block is arranged on the end part of the hexagonal connecting rod, and a fixing unit is arranged on the control knob.
Preferably, the fixing unit comprises a plurality of fixing inserting rods arranged on the side part of the control knob, a plurality of fixing jacks are formed in the end parts of the hollow pull rods, the end parts of the fixing inserting rods extend into the fixing jacks, and an elastic reset element is arranged on the control knob.
Preferably, the elastic reset element comprises a reset spring sleeved on the hexagonal connecting rod, and two ends of the reset spring are respectively arranged on the side parts of the control knob and the anti-drop stop block.
Preferably, the end part of the hollow pull rod is fixedly provided with a connecting pull block, and the side part of the connecting pull block is provided with a connecting pull hole.
In summary, the utility model has the technical effects and advantages that:
1. the utility model has reasonable structure, when the control knob is rotated, the movable plate is driven to horizontally move left and right by the hexagonal connecting rod, the control rotating rod, the first bevel gear, the second bevel gear and the horizontal stud, so that the locking inserting rod can be driven to move in or out of the first jack and the second jack, the upper supporting plate and the lower supporting plate are fixed or loosened, the upper supporting plate and the lower supporting plate are positioned on the same vertical line to always prop up the lower die main body and the upper movable die, or the upper supporting plate and the lower supporting plate are in a bending state to fold the lower die main body and the upper movable die, a large number of bolts are not required to be screwed in sequence by a worker to lock or unlock the lower die after the worker drills into the box girder inner die, the operation is simple and convenient, time and labor are saved, the construction efficiency is improved, and the safety is good;
2. According to the utility model, when the control knob is pulled to the fixed inserting rod to move out of the fixed inserting hole, the control knob can be unlocked, and when the control knob is loosened, the fixed inserting rod can be driven to automatically move into the fixed inserting hole under the action of the elastic force of the reset spring, and the control knob is always fixed and can not rotate, so that the situation that the upper supporting plate and the lower supporting plate are automatically unlocked due to careless touching of the control knob can be effectively avoided in the use process, and the stability is good in use.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of an automatic locking and unlocking device for a box girder internal mold pull rod according to an embodiment of the application;
FIG. 2 is an enlarged perspective view of the hollow pull rod in accordance with the embodiment of the present application;
FIG. 3 is a schematic view showing a partial cross-sectional structure of a hollow tie rod, an upper support plate and a lower support plate at a joint in an embodiment of the present application;
fig. 4 is an enlarged view of a portion of the control assembly shown in fig. 2 according to an embodiment of the present application.
In the figure: 1. a lower die main body; 2. a movable mould is arranged on the upper part; 3. a hollow pull rod; 4. a fixed shaft; 5. an upper supporting plate; 6. a lower supporting plate; 7. a connecting plate; 8. a horizontal stud; 9. a moving plate; 10. locking the plunger; 11. a control rotating rod; 12. a first bevel gear; 13. a second bevel gear; 14. a horizontal guide rod; 15. a hexagonal connecting rod; 16. a control knob; 17. an anti-drop stop; 18. fixing the inserted link; 19. a fixed jack; 20. a return spring; 21. and connecting the pull blocks.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: referring to fig. 1-4, an automatic locking and unlocking device for a box girder internal mold pull rod is shown, the automatic locking and unlocking device comprises a lower mold main body 1 and an upper movable mold 2 which are hinged with each other, a hollow pull rod 3 is arranged between the lower mold main body 1 and the upper movable mold 2, a plurality of fixed shafts 4 are uniformly arranged on the side parts of the hollow pull rod 3, an upper supporting plate 5 and a lower supporting plate 6 are rotatably sleeved on the plurality of fixed shafts 4, connecting plates 7 are rotatably arranged at the end parts of the upper supporting plate 5 and the lower supporting plate 6, which are far away from each other, the end parts of the two connecting plates 7 are hinged with the bottom inner wall of the lower mold main body 1 and the top inner wall of the upper movable mold 2 respectively, a plurality of locking components are arranged on the hollow pull rod 3, each locking component comprises a horizontal stud 8 rotatably arranged on the side inner wall of the hollow pull rod 3, a movable plate 9 is sleeved on each horizontal stud 8, two locking inserting rods 10 are arranged on the side parts of the movable plate 9, two first inserting holes are rotatably arranged on the side parts of the upper supporting plate 5, two second inserting holes are rotatably arranged on the side parts of the lower supporting plate 6, the locking rods 10 extend to the outside of the hollow inserting rods 3 and sequentially penetrate through the first inserting holes, the first inserting holes and the second inserting holes are rotatably arranged at the end parts 11, a control rotary control unit 11 is rotatably arranged at the end parts, and control rotary rod 11 is rotatably arranged at the end parts of the hollow rotating units and is rotatably connected with control rotary rods 11.
By means of the structure, when the control assembly rotates to control the rotating rod 11, the control rotating rod 11 rotates to drive the plurality of horizontal studs 8 to synchronously rotate through the gear transmission unit, the horizontal studs 8 rotate to drive the movable plate 9 to horizontally move left and right under the common cooperation of the horizontal guide units, and then the locking inserting rod 10 can be driven to move into or out of the first inserting hole and the second inserting hole, the upper supporting plate 5 and the lower supporting plate 6 are fixed or loosened, so that the upper supporting plate 5 and the lower supporting plate 6 can be rotated to be positioned on the same vertical line to prop up the lower die main body 1 and the upper movable die 2, or the upper supporting plate 5 and the lower supporting plate 6 are rotated to be in a bending state to fold the lower die main body 1 and the upper movable die 2, a large number of bolts are not required to be sequentially screwed into the box girder inner die by using tools by workers, the box girder inner die structure is simple and convenient to operate, time and labor are saved, construction efficiency is improved, and safety is good.
As a preferred embodiment of the present embodiment, the gear transmission unit includes a plurality of first bevel gears 12 fitted over the control rotating rod 11, and a plurality of second bevel gears 13 are fitted to the ends of the plurality of horizontal studs 8, and the plurality of first bevel gears 12 are engaged with the plurality of second bevel gears 13, respectively. The advantage of setting like this is, when control bull stick 11 rotates, can drive a plurality of first bevel gears 12 and rotate, a plurality of first bevel gears 12 rotate and can drive a plurality of second bevel gears 13 and rotate together, and then realized can drive a plurality of horizontal double-screw bolts 8 synchronous pivoted purpose, played synchronous transmission's effect.
As a preferred embodiment of the present embodiment, the horizontal guide unit includes two horizontal guide rods 14 mounted on the inner walls of the sides of the hollow tie rod 3, and the moving plate 9 is slidably coupled to the two horizontal guide rods 14. The advantage of this is that the moving plate 9 can only move horizontally, but not rotate together with the horizontal stud 8, which serves as a limiting guide.
As a preferred implementation manner of this embodiment, the control assembly includes a hexagonal connecting rod 15 mounted on an end portion of the control rotating rod 11, a control knob 16 is slidably sleeved on the hexagonal connecting rod 15, an anti-drop block 17 is mounted on an end portion of the hexagonal connecting rod 15, a fixing unit is mounted on the control knob 16, the fixing unit includes a plurality of fixing inserting rods 18 mounted on a side portion of the control knob 16, a plurality of fixing inserting holes 19 are formed in an end portion of the hollow pull rod 3, an end portion of the fixing inserting rod 18 extends into the fixing inserting holes 19, and an elastic reset element is mounted on the control knob 16. The advantage of setting like this is, when pulling control knob 16, can drive fixed inserted bar 18 and shift out fixed jack 19, and at this moment, can directly rotate control knob 16 and lock or unblock operation, when pushing control knob 16 to fixed inserted bar 18 move into fixed jack 19, can be with the fixed unable rotation of control knob 16 to can effectively avoid appearing because of carelessly touching control knob 16 and lead to upper supporting plate 5 and lower supporting plate 6 to be unlocked by the condition automatically in the use, stability is good during the use.
In this embodiment, the elastic restoring element includes a restoring spring 20 sleeved on the hexagonal connecting rod 15, and both ends of the restoring spring 20 are respectively mounted on the side portions of the control knob 16 and the anti-drop block 17. The advantage of this arrangement is that when the control knob 16 is loosened, under the action of the elastic force of the return spring 20, the control knob 16 is pushed and pushed to automatically reset, and then the fixed inserted link 18 is driven to automatically move into the fixed insertion hole 19, so that the control knob 16 is automatically fixed, and the fixed state can be always maintained, and the device is stable and firm.
As a preferred implementation manner of this embodiment, the end portion of the hollow pull rod 3 is fixedly provided with a connecting pull block 21, and the side portion of the connecting pull block 21 is provided with a connecting pull hole. The advantage of this arrangement is that it is convenient for the constructor to be able to pull the hollow pull rod 3 through the apparatus for demoulding operation.
The working principle of the utility model is as follows:
when in use, a constructor can pull the control knob 16 until the fixed inserting rod 18 moves out of the fixed inserting hole 19 to unlock the control knob 16, at the moment, the control knob 16 can be rotated, the control knob 16 rotates to drive the control rotating rod 11 to rotate together through the hexagonal connecting rod 15, the control rotating rod 11 rotates to drive the plurality of horizontal studs 8 to synchronously rotate through the plurality of first bevel gears 12 and the plurality of second bevel gears 13, the horizontal studs 8 rotate to drive the movable plate 9 to horizontally move right under the cooperation of the horizontal guide rods 14, the locking inserting rod 10 can be driven to move out of the first inserting hole and the second inserting hole to unlock the upper supporting plate 5 and the lower supporting plate 6, at the moment, the hollow pull rod 3 can be pulled to rotate the upper supporting plate 5 and the lower supporting plate 6 to a bending state to fold the lower die main body 1 and the upper movable die 2, or the hollow pull rod 3 is pushed to rotate the upper supporting plate 5 and the lower supporting plate 6 to be positioned on the same vertical line to prop up the lower die main body 1 and the upper movable die 2, a large number of bolts are not needed to be screwed in sequence by using tools when workers drill into the box girder inner die, when the locking is needed to be completely propped up, the control knob 16 can be reversely rotated to enable the locking inserting rod 10 to move into the first inserting hole and the second inserting hole, the upper supporting plate 5 and the lower supporting plate 6 are fixed, the upper supporting plate 5 and the lower supporting plate 6 are kept in a propped-up state, then the control knob 16 is directly loosened, the control knob 16 is extruded and pushed to automatically reset under the elastic force of the reset spring 20, the fixed inserting rod 18 is further driven to automatically move into the fixed inserting hole 19, the control knob 16 is always fixed, the upper supporting plate 5 and the lower supporting plate 6 are prevented from being automatically unlocked due to carelessly touching the control knob 16, the operation is simple and convenient, time and labor are saved, the construction efficiency is improved, and the safety is good.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a case roof beam centre form pull rod automatic locking unlocking ware, includes lower mould main part (1) and last movable mould (2) that articulated set up each other, lower mould main part (1) with go up be provided with hollow pull rod (3), its characterized in that between movable mould (2): the side part of the hollow pull rod (3) is uniformly provided with a plurality of fixing shafts (4), the fixing shafts (4) are respectively and rotatably sleeved with an upper supporting plate (5) and a lower supporting plate (6), the mutually far end parts of the upper supporting plate (5) and the lower supporting plate (6) are respectively and rotatably provided with a connecting plate (7), the mutually far end parts of the two connecting plates (7) are respectively hinged with the bottom inner wall of the lower module main body (1) and the top inner wall of the upper movable module (2), the hollow pull rod (3) is provided with a plurality of locking assemblies, the locking assemblies comprise horizontal studs (8) which are rotatably arranged on the side part inner wall of the hollow pull rod (3), the horizontal studs (8) are uniformly sleeved with a movable plate (9), the side parts of the movable plate (9) are respectively provided with two locking inserting rods (10), the side parts of the upper supporting plate (5) are respectively provided with two first inserting holes, the side parts of the lower supporting plate (6) are respectively hinged with the bottom inner wall of the lower module main body (1) and the top inner wall of the upper movable module (2), the hollow pull rod (3) is rotatably provided with a plurality of second inserting holes, the hollow pull rod (3) is rotatably provided with a control hole (11) which is rotatably arranged on the hollow pull rod (3), the control rotating rod (11) is connected with a gear transmission unit used for enabling a plurality of horizontal studs (8) to synchronously rotate, and a control assembly is installed at the end part of the control rotating rod (11).
2. The automatic locking and unlocking device for the tie rod of the box girder inner die according to claim 1, wherein: the gear transmission unit comprises a plurality of first bevel gears (12) which are sleeved on the control rotating rod (11), second bevel gears (13) are arranged at the end parts of the horizontal studs (8), and the first bevel gears (12) are respectively meshed with the second bevel gears (13).
3. The automatic locking and unlocking device for the tie rod of the box girder inner die according to claim 1, wherein: the horizontal guide unit comprises two horizontal guide rods (14) arranged on the inner walls of the side parts of the hollow pull rod (3), and the movable plate (9) is in sliding sleeve connection with the two horizontal guide rods (14).
4. The automatic locking and unlocking device for the tie rod of the box girder inner die according to claim 1, wherein: the control assembly comprises a hexagonal connecting rod (15) arranged on the end part of the control rotating rod (11), a control knob (16) is sleeved on the hexagonal connecting rod (15) in a sliding mode, an anti-falling stop block (17) is arranged on the end part of the hexagonal connecting rod (15), and a fixing unit is arranged on the control knob (16).
5. The automatic locking and unlocking device for the tie rod of the box girder inner die according to claim 4, wherein: the fixing unit comprises a plurality of fixing inserting rods (18) arranged on the side part of the control knob (16), a plurality of fixing inserting holes (19) are formed in the end part of the hollow pull rod (3), the end part of the fixing inserting rod (18) extends into the fixing inserting holes (19), and an elastic reset element is arranged on the control knob (16).
6. The automatic locking and unlocking device for the tie rod of the box girder inner die according to claim 5, wherein: the elastic reset element comprises a reset spring (20) sleeved on the hexagonal connecting rod (15), and two ends of the reset spring (20) are respectively arranged on the side parts of the control knob (16) and the anti-falling stop block (17).
7. The automatic locking and unlocking device for the tie rod of the box girder inner die according to claim 1, wherein: the end part of the hollow pull rod (3) is fixedly provided with a connecting pull block (21), and the side part of the connecting pull block (21) is provided with a connecting pull hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323240148.6U CN221338896U (en) | 2023-11-29 | 2023-11-29 | Automatic locking and unlocking device for box girder internal mold pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323240148.6U CN221338896U (en) | 2023-11-29 | 2023-11-29 | Automatic locking and unlocking device for box girder internal mold pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221338896U true CN221338896U (en) | 2024-07-16 |
Family
ID=91831628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323240148.6U Active CN221338896U (en) | 2023-11-29 | 2023-11-29 | Automatic locking and unlocking device for box girder internal mold pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221338896U (en) |
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2023
- 2023-11-29 CN CN202323240148.6U patent/CN221338896U/en active Active
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