CN219908554U - Anti-falling locking device - Google Patents
Anti-falling locking device Download PDFInfo
- Publication number
- CN219908554U CN219908554U CN202321234408.6U CN202321234408U CN219908554U CN 219908554 U CN219908554 U CN 219908554U CN 202321234408 U CN202321234408 U CN 202321234408U CN 219908554 U CN219908554 U CN 219908554U
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- wedge
- wedge block
- block
- locking device
- falling
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- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 230000009194 climbing Effects 0.000 description 7
- 239000000725 suspension Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Abstract
The utility model provides an anti-falling locking device which comprises a disc spring cylinder, a door frame, an upper wedge block and a lower wedge block, wherein the disc spring cylinder is arranged on the door frame; the cylinder body end of the disc spring cylinder is hinged with the door frame; the upper wedge block is detachably arranged at the cylinder body end of the disc spring cylinder, and the lower wedge block is hoisted on the door frame through an extension spring; the upper wedge has a downward wedge face, the lower wedge has an upward wedge face, and the downward wedge face of the upper wedge is in contact with the upward wedge face of the lower wedge; when the anti-falling piece accidentally falls, the lower wedge block moves upwards and horizontally relative to the upper wedge block, so that the anti-falling locking device is in a locking state, and the anti-falling piece is prevented from continuing to fall. The anti-falling locking device has the advantages of compact structure, safety, reliability and easy operation.
Description
Technical Field
The utility model relates to the technical field of building bridge construction, in particular to an anti-falling locking device for cylindrical pier type bridge construction.
Background
In bridge design, column pier is the structure type that generally adopts. For simply supported bridges, the bent cap is an important component for supporting the bridge, the load of the upper structure is transferred to the lower structure and the foundation through the bent cap, and the bent cap is one of main stress structures. Namely, the capping beam refers to a cross beam, also called a capping beam, arranged at the top of the bent pier for supporting, distributing and transmitting the load of the upper structure.
The bridge bent cap construction in the prior art is commonly carried out by a steel bar crossing method, a bracket method, a floor stand method, a traditional anchor ear method and other construction methods.
In recent years, a device has been developed that can build temporary supporting devices for a capping beam, such as a supporting main beam, a distributing beam, a capping beam bottom die, and a capping beam construction work platform, at low altitudes, and then use related lifting devices to integrally lift the temporary supporting devices to a construction work position at the time of capping beam high altitudes. The method not only overcomes the defects in the capping beam construction method in the prior art, but also can greatly improve the construction efficiency, reduce the risk of high-altitude operation and ensure the personal safety of constructors.
However, the existing lifting devices such as climbing formworks bear vertical load by the friction force of hoop clamping, so that potential safety hazards of accidental falling exist. The market needs a safe and reliable anti-falling locking device urgently, so that when a lifting device such as a climbing form falls accidentally, the lifting device can be prevented from falling continuously when a certain falling distance or speed reaches a certain limit, and related accidents are prevented from happening.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the anti-falling locking device which is compact in structure, safe and reliable.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the anti-falling locking device comprises a disc spring cylinder, a door frame, an upper wedge block and a lower wedge block; the cylinder body end of the disc spring cylinder is hinged with the door frame; the upper wedge block is detachably arranged at the cylinder body end of the disc spring cylinder, and the lower wedge block is hoisted on the door frame through an extension spring; the upper wedge has a downward wedge face, the lower wedge has an upward wedge face, and the downward wedge face of the upper wedge is in contact with the upward wedge face of the lower wedge; when the anti-falling piece accidentally falls, the lower wedge block moves upwards and horizontally relative to the upper wedge block, so that the anti-falling locking device is in a locking state, and the anti-falling piece is prevented from continuing to fall.
The preferable technical scheme is that the anti-falling locking device further comprises a pressing plate, wherein the pressing plate is provided with a raised flange; the clamp plate passes through the screw and is connected with last wedge, just the clamp plate passes through bellied flange on the clamp plate and hangs the wedge dress on the cylinder body end of dish spring jar.
According to the preferable technical scheme, the anti-falling locking device further comprises a guide plate, and the guide plate is L-shaped; guide grooves are formed in two sides of the lower wedge block; the guide plates are fixed on two sides of the upper wedge block through first bolt assemblies respectively, and the L-shaped guide plates are matched with guide grooves on two sides of the lower wedge block to guide the lower wedge block when sliding relative to the upper wedge block.
The preferable technical proposal is that the anti-falling locking device also comprises a roller needle row; a groove is formed in the downward wedge-shaped surface of the upper wedge-shaped block; the roller pin row is arranged in a groove on the downward wedge-shaped surface of the upper wedge-shaped block and is in rolling contact with the upward wedge-shaped surface of the lower wedge-shaped block.
According to the preferred technical scheme, the friction block is detachably arranged on the lower wedge block.
The preferred technical scheme, contact each other between the cylinder body end of dish spring jar and the last wedge, and the contact surface of the cylinder body end of dish spring jar be the sphere, be equipped with on the last wedge with this sphere complex arcwall face.
According to the preferable technical scheme, the top of the upper wedge-shaped block is contacted with the door frame, the top of the upper wedge-shaped block is an arc surface, and the top of the upper wedge-shaped block is in line contact with the door frame.
Compared with the prior art, the utility model has the beneficial effects that:
1. the anti-falling locking device has the advantages of compact structure, safety, reliability and easy operation.
2. The anti-falling locking device is relatively reliable in locking or unlocking and convenient to operate.
3. The anti-falling locking device does not influence the normal up-and-down operation of the anti-falling piece, only can trigger and lock the anti-falling piece when the anti-falling piece falls due to unexpected weightlessness, and can unlock the anti-falling piece only by the normal upward operation of the anti-falling piece.
4. The lower wedge block can be guided by the guide plate to run, and in a weightless state, the lower wedge block can slide along the guide plate to trigger the lower wedge block and the upper wedge block to move relatively close, so that the lower wedge block moves horizontally, and the anti-falling piece to be locked is further locked.
5. The integrated disc spring cylinder can realize buffering and avoid structural damage caused by overlarge impact force.
Drawings
FIG. 1 is a schematic view of a spring-activated fall arrest safety device incorporating the fall arrest lock device of the present utility model mounted to a pier stud.
Fig. 2 is a schematic structural exploded view of a spring-triggered fall arrest safety device employing the fall arrest locking device of the present utility model.
Fig. 3 is a schematic view of the installation structure of the arc-shaped case and the anti-falling locking device.
Fig. 4 is a schematic diagram of an exploded structure of the arc-shaped case and the fall protection locking device.
Fig. 5 is a schematic view of the structure of the suspension device.
Fig. 6 is a schematic front view of the fall arrest lock device of the present utility model.
Fig. 7 is a schematic top view of the fall arrest lock device of the present utility model.
Fig. 8 is a schematic cross-sectional view in the direction B-B of fig. 6.
Fig. 9 is an enlarged schematic view of the section I in fig. 8.
Fig. 10 is a schematic cross-sectional view taken in the direction A-A of fig. 7.
Fig. 11 is a schematic cross-sectional view of a disc spring cylinder according to the present utility model.
Fig. 12 is a schematic perspective view of an upper wedge block according to the present utility model.
Fig. 13 is a schematic perspective view of another view of the upper wedge of the present utility model.
Fig. 14 is a schematic perspective view of a lower wedge block according to the present utility model.
Fig. 15 is a schematic front view of the lower wedge block of the present utility model.
Fig. 16 is a schematic cross-sectional view in the direction C-C of fig. 15.
Fig. 17 is a schematic view of the mounting structure between the door frame and the upper and lower wedge assemblies.
Fig. 18 is a schematic view of an exploded construction between the door frame and the upper and lower wedge assemblies.
Fig. 19 is a schematic view showing the state of the fall arrest locking device in the normal operation state of the present utility model.
Fig. 20 is a schematic view showing a state of the fall arrest lock device according to the present utility model in an initial trigger state.
Fig. 21 is a schematic view of the fall arrest lock device of the present utility model in a condition during triggering.
Fig. 22 is a schematic view showing a fall arrest lock device according to the present utility model in a trigger lock state.
Detailed Description
An embodiment of a fall arrest lock device according to the present utility model will be further described with reference to figures 1 to 22.
A spring-triggered fall protection safety device comprises an annular box body 1 and a fall protection locking device 7. The annular box body 1 is formed by connecting a plurality of arc-shaped box bodies 6 through bolts 3 into a whole; the spring-triggered anti-falling safety device is suspended on the climbing device 4 (namely the piece to be prevented from falling) through the suspension device 2, and the spring-triggered anti-falling safety device is driven by the climbing device 4 to conduct lifting motion along the pier stud 5.
The anti-falling locking device 7 can be uniformly distributed on the annular box body 1, and a plurality of upper guide wheels 8 and lower guide wheels 9 are further arranged on the annular box body 1. The spring-triggered anti-falling safety devices can be balanced by the aid of the uniformly distributed multiple groups of anti-falling locking devices 7, braking capacity is improved, the spring-triggered anti-falling safety devices can be kept centered with the pier stud 5 in the up-down running process of the spring-triggered anti-falling safety devices by integrating multiple groups of upper guide wheels 8 and lower guide wheels 9, running stability is improved, and misoperation is reduced.
The suspension device 2 comprises a first mounting seat 2.1, a fisheye bolt 2.2, a nut 2.3, a chain connector 2.4, a chain 2.5, a second mounting seat 2.6, a first pin shaft assembly 2.7 and a second pin shaft assembly 2.8, wherein the first mounting seat 2.1 is fixed on an arc-shaped box body 6 of a spring-triggered anti-falling safety device, the second mounting seat 2.6 is fixed on the climbing device 4, the distance between the first mounting seat 2.1 and the second mounting seat 2.6 can be adjusted through the fisheye bolt 2.2, the spring-triggered anti-falling safety device can be distributed with a plurality of groups of suspension devices 2, the spring-triggered anti-falling safety device can be leveled through adjusting the fisheye bolt 2.2, and the up-down running stability of the spring-triggered anti-falling safety device is ensured.
The anti-falling locking device 7 comprises an adjustable ear seat 7.1, an adjusting gasket 7.2, a pin shaft assembly 7.3, a disc spring cylinder 7.4, an extension spring 7.5, a door frame 7.6, a pressing plate 7.7, an upper wedge block 7.8, a needle roller row 7.9, a lower wedge block assembly 7.10, a guide plate 7.11, a first bolt assembly 7.12 and a second bolt assembly 7.13. The arc-shaped box body 6 is provided with a fixed lug seat 6.1, the adjustable lug seat 7.1 is connected with the fixed lug seat 6.1 through a second bolt assembly 7.13, and the relative position between the anti-falling locking device 7 and the pier column 5 can be adjusted by increasing or decreasing the adjusting gasket 7.2, so that an optimal initial gap S is formed between the lower wedge block assembly 7.10 and the pier column 5.
The cylinder 7.4.5 of the disc spring cylinder is provided with two trunnions 7.4.5.1, and the disc spring cylinder 7.4 can be supported and guided by the contact of the trunnions 7.4.5.1 and the sliding grooves 7.6.1 at the door frame 7.6. A plurality of disc springs 7.4.4 are arranged between the piston rod 7.4.1 of the disc spring cylinder and the cylinder 7.4.5, so that the elastic buffering effect can be achieved.
The piston rod 7.4.1 of the disc spring cylinder 7.4 is provided with a joint bearing 7.4.2 which is connected with the adjustable ear seat 7.1 through a pin shaft assembly 7.3. The right end of the cylinder 7.4.5 of the disc spring cylinder is a spherical surface 7.4.6 (an arc-shaped surface 7.8.3 matched with the spherical surface 7.4.6 is arranged on the upper wedge-shaped block 7.8), and the upper wedge-shaped block 7.8 is connected with the cylinder 7.4.5 of the disc spring cylinder through a pressing plate 7.7, so that the disc spring cylinder 7.4 and the upper wedge-shaped block 7.8 form a spherical hinge. And the top of the upper wedge block 7.8 is an arc surface 7.8.1, and is in line contact with the door frame 7.6, so that the upper wedge block 7.8 can adapt to elastic deformation caused by loading of a spring-triggered anti-falling safety device box body, and further effective contact between the lower wedge block assembly 7.10 and the pier column 5 is ensured, and the surface of the pier column 5 is prevented from being damaged.
The lower wedge assembly 7.10 is comprised of a lower wedge 7.10.1, friction blocks 7.10.2, a tightening screw 7.10.3, a spring hook 7.10.4, and friction blocks 7.10.2 are secured to the lower wedge 7.10.1 by tightening screws 7.10.3. In actual use, the friction block 7.10.2 needs to be in contact friction with the pier stud 5, belongs to a vulnerable part, and can be conveniently replaced by detachably connecting the friction block with the pier stud 5 through the fastening screw 7.10.3.
The upper wedge block 7.8 and the lower wedge block assembly 7.10 are guided by a guide plate 7.11, the lower wedge block 7.8 being slidable along the guide plate 7.11 relative to the upper wedge block 7.8. The lower wedge 7.10.1 is designed with a guiding groove 7.10.1.1, and the guiding plate 7.11 is designed to be L-shaped, is fixed on two sides of the upper wedge 7.8 through the first bolt assembly 7.12, extends into the guiding groove of the lower wedge 7.10.1, and guides and limits the lower wedge 7.10.1. The upper wedge 7.8 has a downward wedge face, the lower wedge 7.10.1 has an upward wedge face, and the downward wedge face of the upper wedge 7.8 is in mating contact with the upward wedge face of the lower wedge 7.10.1; the upper wedge block 7.8 is provided with a groove 7.8.2 designed on the downward wedge surface, the roller pin row 7.9 is arranged at the groove 7.8.2, the downward wedge surface of the upper wedge block 7.8 is contacted with the upward wedge surface of the lower wedge block 7.10.1 through the roller pin row 7.9, the sliding friction can be changed into rolling friction, and thus, the friction coefficient between the upper wedge block 7.8 and the lower wedge block 7.10.1 during the movement along an inclined plane can be reduced, and the self-locking performance of the anti-falling locking device 7 can be more reliable.
Tension springs 7.5 are arranged on two sides of the lower wedge 7.10.1, one end of each tension spring 7.5 is fixed on a spring hook 7.10.4 of the lower wedge assembly 7.10, and the other end of each tension spring 7.5 is fixed on the door frame 7.6. When the weightless falling occurs, the lower wedge block assembly 7.10 can relatively close along the guide plate 7.11 and the upper wedge block 7.8 under the action of the tension spring 7.5, and as the upper wedge block 7.8 and the lower wedge block 7.10.1 are mutually matched wedge surfaces, the upper wedge block 7.8 and the lower wedge block 7.10.1 are in inclined surface fit, and can have horizontal displacement when relatively close, so that the lower wedge block assembly 7.10 is in contact with the pier stud 5, the anti-falling locking action is triggered, the climbing device 4 is stopped and locked in position through inclined surface self-locking, further sliding is prevented, and the effective anti-falling protection effect is achieved.
In the working process of the anti-falling locking device 7, as shown in fig. 19, in a normal working state, the lower wedge block assembly 7.10 is placed at the bottom of the door frame 7.6 by means of self weight, and an initial gap between the lower wedge block assembly 7.10 and the pier stud 5 is S. When the crawler 4 falls accidentally, as shown in fig. 20, the initial triggering process state is shown as a weight loss moment, the lower wedge block assembly 7.10 starts to perform relative folding movement with the upper wedge block 7.8 under the action of the tension spring 7.5, the relative movement stroke is H1, and the gap between the lower wedge block assembly 7.10 and the pier stud 5 is reduced to S1. As shown in fig. 21, during the triggering process, the second triggering process state is that the lower wedge block assembly 7.10 is in contact with the pier stud 5, and the trigger anti-falling locking device 7 starts to brake, and at this time, the relative movement stroke of the lower wedge block 7.10.1 relative to the upper wedge block 7.8 is increased to H2. As shown in fig. 22, when the locking is triggered, the third trigger locking state is the maximum braking force state, the lower wedge block assembly 7.10 moves to the upper limit position of the door frame 7.6, the relative movement stroke of the lower wedge block 7.10.1 relative to the upper wedge block 7.8 is increased to H3, at this time, the disc spring of the disc spring cylinder 7.4 is compressed to a certain extent, the compression stroke is T1, the anti-falling locking device 7 is triggered in this state to play the maximum braking force, and the lower wedge block 7.10.1 and the upper wedge block 7.8 form a wedge-shaped self-locking, so that the load can be effectively locked on the pier stud 5.
After the anti-falling locking device 7 is triggered to lock, if unlocking is needed, the anti-falling safety device triggered by the spring can be driven by the climbing device 4 to lift up normally, so that the upper wedge block 7.8 is separated from the lower wedge block 7.10.1, and the lower wedge block assembly 7.10 returns to the initial position under the action of dead weight, and thus unlocking action can be realized.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The utility model provides a locking device that prevents falling which characterized in that: the device comprises a disc spring cylinder, a door frame, an upper wedge block and a lower wedge block; the cylinder body end of the disc spring cylinder is hinged with the door frame; the upper wedge block is detachably arranged at the cylinder body end of the disc spring cylinder, and the lower wedge block is hoisted on the door frame through an extension spring; the upper wedge has a downward wedge face, the lower wedge has an upward wedge face, and the downward wedge face of the upper wedge is in contact with the upward wedge face of the lower wedge; when the anti-falling piece accidentally falls, the lower wedge block moves upwards and horizontally relative to the upper wedge block, so that the anti-falling locking device is in a locking state, and the anti-falling piece is prevented from continuing to fall.
2. A fall arrest locking device as defined in claim 1, wherein: the device also comprises a pressing plate, wherein the pressing plate is provided with a raised flange; the clamp plate passes through the screw and is connected with last wedge, just the clamp plate passes through bellied flange on the clamp plate and hangs the wedge dress on the cylinder body end of dish spring jar.
3. A fall arrest locking device as claimed in claim 2, wherein: the guide plate is L-shaped; guide grooves are formed in two sides of the lower wedge block; the guide plates are fixed on two sides of the upper wedge block through first bolt assemblies respectively, and the L-shaped guide plates are matched with guide grooves on two sides of the lower wedge block to guide the lower wedge block when sliding relative to the upper wedge block.
4. A fall arrest locking device according to claim 3, wherein: it also comprises a roller needle row; a groove is formed in the downward wedge-shaped surface of the upper wedge-shaped block; the roller pin row is arranged in a groove on the downward wedge-shaped surface of the upper wedge-shaped block and is in rolling contact with the upward wedge-shaped surface of the lower wedge-shaped block.
5. A fall arrest locking device as defined in claim 4, wherein: and the friction block is detachably arranged on the lower wedge block.
6. A fall arrest locking device as defined in claim 1, wherein: the cylinder body end of the disc spring cylinder is contacted with the upper wedge block, the contact surface of the cylinder body end of the disc spring cylinder is a spherical surface, and the upper wedge block is provided with an arc surface matched with the spherical surface.
7. A fall arrest locking device as defined in claim 1, wherein: the top of the upper wedge block is contacted with the door frame, the top of the upper wedge block is an arc surface, and the top of the upper wedge block is in line contact with the door frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321234408.6U CN219908554U (en) | 2023-05-19 | 2023-05-19 | Anti-falling locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321234408.6U CN219908554U (en) | 2023-05-19 | 2023-05-19 | Anti-falling locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219908554U true CN219908554U (en) | 2023-10-27 |
Family
ID=88430857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321234408.6U Active CN219908554U (en) | 2023-05-19 | 2023-05-19 | Anti-falling locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219908554U (en) |
-
2023
- 2023-05-19 CN CN202321234408.6U patent/CN219908554U/en active Active
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