CN217478886U - Rail clamping device of rail-moving type lifting working platform - Google Patents
Rail clamping device of rail-moving type lifting working platform Download PDFInfo
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- CN217478886U CN217478886U CN202221538503.0U CN202221538503U CN217478886U CN 217478886 U CN217478886 U CN 217478886U CN 202221538503 U CN202221538503 U CN 202221538503U CN 217478886 U CN217478886 U CN 217478886U
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- rail
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- clamping member
- wheel
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Abstract
The utility model discloses a portable lift work platform of track presss from both sides rail ware belongs to lift operation platform technique, and current rail ware that presss from both sides is used for restricting the unexpected removal of equipment on the track under special circumstances such as strong wind, is not suitable for lift work platform and need press from both sides the rail when removing stable, the utility model discloses pass through transmission screw-thread fit by threaded rod and nut, take the nut through the threaded rod by the engine and go up and down, the lift and the first rail wheel that presss from both sides and the second rail wheel that the centre gripping subassembly was converted into through the centre gripping subassembly of nut draw close together or part each other. When the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, the rail clamping wheels can roll along the rail, so that the rail clamping of the lifting working platform is stable when the lifting working platform moves.
Description
Technical Field
The utility model belongs to lift operation platform technique, concretely relates to portable lift work platform of track presss from both sides rail ware relies on this to press from both sides rail ware can be with lift operation platform restraint on the track and can be along rail mobile.
Background
The rail-moving type lifting working platform has a chassis moving on a rail, and the width of the rail is generally determined, particularly the rail of a railway, and the distance between the rails is uniform according to the standard of a country or a region. When the lifting working platform works, due to the influence of factors such as amplitude variation (the amplitude depends on the working range), wind power, manual operating force and the like in the working state, the anti-overturning lines formed by the track wheels in the front and back directions and the left and right directions on the track are not enough to ensure the stability of the whole machine.
The common rail clamping device is used for limiting equipment on a rail to accidentally move under special conditions such as strong wind and the like, and is basically different from the rail clamping stability required by a lifting working platform during moving. Therefore, it is necessary to design a device capable of clamping the rail in real time when the lifting work platform moves.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model and the technical task who provides overcome that current rail clamping device is used for limiting the equipment on the track unexpected removal under special circumstances such as strong wind, be not suitable for lift work platform need press from both sides the stable defect of rail when removing, provide a portable lift work platform of track and press from both sides rail clamping device, rely on this rail clamping device can be with the restraint of lift work platform on the track and can be along pathway movement.
In order to achieve the above object, the utility model discloses a portable lift work platform of track presss from both sides rail ware, characterized by includes:
a support;
the power machine is fixed on the support and comprises a vertical threaded rod which can be driven to rotate;
a clamping assembly which is restrained on the support in a lifting way; the clamping device comprises a nut, a first clamping part and a second clamping part which are symmetrical; the first clamping part comprises a first clamping component, a first joint connecting rod and a first rail clamping wheel, and the first rail clamping wheel is assembled at the lower end of the first clamping component; the second clamping part comprises a second clamping component, a second joint connecting rod and a second rail clamping wheel, and the second rail clamping wheel is assembled at the lower end of the second clamping component; the first clamping part and the second clamping part are symmetrically arranged on two sides of the nut, a connecting rod is connected between the middle part of the first clamping component and the middle part of the second clamping component, the upper end of the first clamping component is connected with the front side of the nut through the first joint connecting rod, and the upper end of the second clamping component is connected with the rear side of the nut through the second joint connecting rod;
the threaded rod is matched with the nut through transmission threads so that the power machine can drive the nut to lift through the threaded rod, the lifting of the nut is converted into the lifting of the clamping component through the clamping component, and the first rail clamping wheel and the second rail clamping wheel are close to or separated from each other.
The rail clamping device clamps the rail by the mutual approach of the first rail clamping wheel and the second rail clamping wheel, and the first rail clamping wheel and the second rail clamping wheel are separated from each other to separate from the clamping of the rail. When the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, the rail clamping wheels can roll along the rail, so that the rail clamping of the lifting working platform is stable when the lifting working platform moves.
In order to avoid shaking, the support is provided with a left wall and a right wall which are symmetrical, the left ends of the first clamping member and the second clamping member are in sliding fit with the left wall, and the right ends of the first clamping member and the second clamping member are in sliding fit with the right wall.
In order to guide the first clamping part and the second clamping part to act during lifting, the inner surface of the left wall is provided with a left guide plate, the inner surface of the right wall is provided with a right guide plate, the left guide plate is provided with a left front guide edge and a left rear guide edge which protrude out of the inner surface of the left wall, the right guide plate is provided with a right front guide edge and a right rear guide edge which protrude out of the inner surface of the right wall, a tension spring is connected between the upper ends of the first clamping member and the second clamping member, the elastic force of the tension spring enables the upper end of the first clamping member to contact the left front guide edge and the right front guide edge, and the elastic force of the tension spring enables the upper end of the second clamping member to contact the left rear guide edge and the right rear guide edge. The first rail clamping wheel and the second rail clamping wheel are close to or separate from each other under the guidance of the left guide plate and the right guide plate.
In particular, the distance between the upper left front guide edge end and the upper left rear guide edge end is greater than the distance between the lower left front guide edge end and the lower left rear guide edge end, and the distance between the upper right front guide edge end and the upper right rear guide edge end is greater than the distance between the lower right front guide edge end and the lower right rear guide edge end. By the structure, the first rail clamping wheel and the second rail clamping wheel are separated and descend to be close to the rail, so that the first rail clamping wheel and the second rail clamping wheel are respectively positioned on the front side and the rear side of the rail, and position assurance is provided for subsequent clamping.
In order to increase the smoothness of fitting, the upper end of the first gripping member is in rounded contact with the left and right front guide edges, and the upper end of the second gripping member is in rounded contact with the left and right rear guide edges.
In order to increase the structural strength, the first clamping component comprises a first left side plate and a first right side plate which are connected together through a first rib plate, and the second clamping component comprises a second left side plate and a second right side plate which are connected together through a second rib plate; the first and second left side panels abut against an inner surface of the left wall and the first and second right side panels abut against an inner surface of the right wall.
In order to constrain the first and second clamp portions in place to effect clamping of the track, a front bar is connected between the front edges of the left and right walls, a rear bar is connected between the rear edges of the left and right walls, and the first and second clamp members are constrained between the front and rear bars.
In order to increase the stability along the track direction, the first rail clamping wheels comprise at least two and are arranged along the left-right direction; the second rail clamping wheels comprise at least two rail clamping wheels which are arranged along the left-right direction.
In order to realize that the first clamping part and the second clamping part automatically clamp the track when descending, the connecting rod is provided with a contact rail sheet extending downwards; in order to avoid friction generated when the contact rail sheet contacts the rail when the rail is clamped, the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, and a gap is kept between the contact rail sheet and the upper surface of the rail.
In order to prevent the interference to communication and signals, the rail contact sheet, the first rail clamping wheel and the second rail clamping wheel are insulators.
In order to ensure safety, the first clamping member and the second clamping member are respectively provided with a hook, and when the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, the hooks hook the rail and keep a gap with the rail. When the rail clamping wheel is failed accidentally, the hook can play a certain rail clamping role.
In order to realize safe linkage, a safety interlocking device is configured, and when the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, the safety interlocking device sends a clamping confirmation signal to a main control system of the lifting working platform. Therefore, the power machine and a lifting control circuit of the lifting working platform can be set to be in safe interlocking control, when the rail clamping device is in a clamping state, the confirmation signal is sent to a main control system of the lifting working platform, otherwise, the main control system cannot receive the confirmation signal and cannot start the lifting operation of the lifting working platform. Thereby the functional requirement of the rail clamping device for protecting safe operation is realized. When the rail clamping device is in a rail clamping state, the lifting and amplitude-changing operation of the equipment can be carried out, so that the safety of the rail moving type lifting working platform in the high-altitude operation process is ensured.
The utility model discloses pass through transmission screw-thread fit by threaded rod and nut, take the nut to go up and down through the threaded rod by the engine, the lift of nut is converted into the lift of centre gripping subassembly and first clamp rail wheel and second clamp rail wheel and is drawn close each other or part through the centre gripping subassembly. When the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, the rail clamping wheels can roll along the rail, so that the rail clamping of the lifting working platform is stable when the lifting working platform moves.
Drawings
FIG. 1 is a side view of the rail clamping device of the rail-moving type elevating work platform of the present invention;
FIG. 2 is a schematic orthographic view of the rail clamp of FIG. 1 from a front-to-back perspective;
FIG. 3 is a sectional view taken along line A-A in FIG. 2;
FIG. 4 is a sectional view taken along line B-B of FIG. 2;
FIG. 5 is an exploded view of the rail clamp of FIG. 1;
FIG. 6 is an orthographic view of the pedestal and clamp assembly of FIG. 5 from a forward-to-rearward perspective;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;
fig. 8 is an exploded view of the clamping assembly of the present invention;
the reference numbers in the figures illustrate:
100, support seat:
the left wall 110, the right wall 120,
130 left guide plate, 131 left front guide edge, 132 left rear guide edge,
140 right guide plate, 141 right front guide edge, 142 right rear guide edge,
150 front stop lever, 160 rear stop lever, 170 top plate, 180 shaft sleeve and 190 ear parts
200 power machines, 210 threaded rods;
300, clamping component:
at 310 the length of the nut,
320 first clamping part, 321 first clamping component, 322 first joint connecting rod, 323 first clamping rail wheel, 324 first rib plate, 325 first left side plate, 326 first right side plate, 327 round corner, 328 hook,
330 second clamping part, 331 second clamping member, 332 second knuckle link, 333 second clamping rail wheel, 334 second rib plate, 335 second left side plate, 336 second right side plate, 337 rounded corner, 338 hook,
340, 341 contact rail pieces,
350 tension springs;
400 tracks.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the accompanying drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention are intended to cover a non-exclusive inclusion, such that a method or article of manufacture that comprises a list of features is not necessarily limited to those features expressly listed, but may include other features not expressly listed that may be included in the method or article of manufacture.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in fig. 1, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the technical features defined by the terms "first", "second", etc. have sequential concepts, and the defined technical features are only clearly distinguished from other technical features in order to clearly describe the defined technical features, but do not represent such naming in actual implementation, and therefore, cannot be construed as limiting the present invention.
The present invention will be described in detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1-5, the rail clamp for a rail-moving elevated work platform includes a support 100, a power machine 200, and a clamping assembly 300.
As shown in fig. 6-7, the support 100 has symmetrical left and right walls 110 and 120, and the tops of the left and right walls 110 and 120 are fastened together by a top plate 170, which is preferably welded and may be bent from a steel plate. In order to increase the strength, a front reinforcing plate is welded to the upper portions of the front side edges of the left and right walls, a rear reinforcing plate is welded to the upper portions of the rear side edges of the left and right walls, and ear portions 190 for mounting the bracket on the chassis of the elevating work platform are respectively extended to the left and right sides of the rear reinforcing plate. In specific implementation, the ear part can be arranged at other positions of the support base or replaced by other connecting and mounting structures according to the position and the direction of the support base mounted on the chassis and the structure of the chassis. In order to increase the strength, vertical reinforcing ribs are welded on the outer surfaces of the left wall and the right wall. In order to support the threaded rod, a shaft sleeve 180 is welded on the lower side of the middle part of the top wall.
A left guide plate 130 is fixedly provided to an inner surface of the left wall 110, a right guide plate 140 is fixedly provided to an inner surface of the right wall 120, the left guide plate 130 has a left front guide edge 131 and a left rear guide edge 132 protruding from the inner surface of the left wall, and the right guide plate 140 has a right front guide edge 141 and a right rear guide edge 142 protruding from the inner surface of the right wall. The left guide plate 130 is bilaterally symmetrical to the right guide plate 140. Also, the distance between the upper end of the left front guide edge 131 and the upper end of the left rear guide edge 132 is greater than the distance between the lower end of the left front guide edge and the lower end of the left rear guide edge, and the distance between the upper end of the right front guide edge 141 and the upper end of the right rear guide edge 142 is greater than the distance between the lower end of the right front guide edge and the lower end of the right rear guide edge. Moreover, the respective guide edges are smooth. The left guide plate and the right guide plate are used for controlling the motion tracks of the first clamping component and the second clamping component.
A front bar 150 is connected between the front edges of the left and right walls 110, 120 and a rear bar 160 is connected between the rear edges of the left and right walls.
Accordingly, the left and right walls 110 and 120 of the bracket, the front and rear bars 150 and 160, the front and rear reinforcing plates, and the top plate 170 define an installation space therebetween.
As shown in fig. 8, the clamping assembly 300 includes a nut 310 and symmetrical first and second clamping portions 320 and 330.
The first clamping portion 320 includes a first clamping member 321, a first joint link 322, and two first clamping rail wheels 323, and the two first clamping rail wheels 323 are arranged and assembled at a lower end of the first clamping member 321 in the left-right direction. The second clamping portion 330 includes a second clamping member 331, a second joint link 332, and two second clamping rail wheels 333, which are fitted in a left-right direction in line at the lower end of the second clamping member. The first clamping portion 320 and the second clamping portion 330 are symmetrically arranged on two sides of the nut 310, two connecting rods 340 are connected between the middle portion of the first clamping member 321 and the middle portion of the second clamping member 331, the upper end of the first clamping member 321 is connected with the front side of the nut 310 through a first joint connecting rod 322, and the upper end of the second clamping member 331 is connected with the rear side of the nut 310 through a second joint connecting rod 332.
Further, first clamp member 321 includes a first left side plate 325 and a first right side plate 326 connected together via a first rib plate 324, and second clamp member 331 includes a second left side plate 335 and a second right side plate 336 connected together via a second rib plate 334. Hooks 328, 338 are provided on both the first and second clamp members.
The two connecting rods 340 are respectively provided with a contact rail piece 341 extending downwards, and when the first rail clamping wheel 323 and the second rail clamping wheel 333 are close to each other to clamp the rail, the contact rail piece 341 keeps a gap with the upper surface of the rail 400.
When the rail clamping device works on rails such as a high-speed railway, the two rails need to be isolated by electric signals to prevent the interference to communication and signals, so that the rail clamping wheel and the rail contact sheet can be made of insulating materials such as engineering plastics.
The clamping assembly 300 shown in fig. 8 is placed in the mounting space in the holder from bottom to top. The first left side plate 325 and the second left side plate 335 respectively serve as a left end of the first clamping member and a left end of the second clamping member to abut against the inner surface of the left wall 110, and the first right side plate 326 and the second right side plate 336 respectively serve as a right end of the first clamping member and a right end of the second clamping member to abut against the inner surface of the right wall 120. So that the left ends of the first and second clamping members are in sliding engagement with the left wall and the right ends of the first and second clamping members are in sliding engagement with the right wall. A tension spring 350 is connected between the upper ends of the first and second clamping members, the upper end of the first clamping member 321 being urged into contact with the left and right front guide edges 131 and 141 by the elastic force of the tension spring, and the upper end of the second clamping member 331 being urged into contact with the left and right rear guide edges 132 and 142 by the elastic force of the tension spring. Also, the upper end of the first clamping member contacts the left and right front guide edges 131 and 141 via a rounded corner 327, and the upper end of the second clamping member contacts the left and right rear guide edges 132 and 142 via a rounded corner 337. The first and second clamping members are constrained between the front and rear bars. Thereby, make the centre gripping subassembly restrict and rise in the support.
The threaded rod 210 passes through the sleeve 180 to be matched with the nut 310 through a transmission thread, and the sleeve is matched with the optical axis section on the threaded rod. The power machine drives the nut to lift through the threaded rod, the lifting of the nut is converted into the lifting of the clamping component through the clamping component, and the first rail clamping wheel and the second rail clamping wheel are close to or separated from each other.
In addition, a safety interlocking device is configured, a travel switch is installed in the travel of the clamping assembly, the travel switch is triggered when the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, and the safety interlocking device sends a clamping confirmation signal to a main control system of the lifting working platform. The travel switch may be a mechanical switch or a photoelectric switch.
In the rail clamping device with the structure, the power machine 200 drives the nut 310 to lift through the threaded rod 210, and the lifting of the nut 310 is converted into the lifting of the clamping component through the clamping component 300. Before the contact piece 341 contacts the rail 400, the postures of the first clamping member 321 and the second clamping member 331 are controlled by the guide plate and not by the joint link connected to the nut, and when the first clamping member and the second clamping member move downward, the first clamping wheel 323 and the second clamping wheel 333 are separated from each other. In the process of moving the first clamping member and the second clamping member downward, the first rail clamping wheel and the second rail clamping wheel are separated from each other to approach the rail, and the rail contact piece 341 first contacts the rail 400. After the rail contact sheet is contacted with the rail, the postures of the first clamping member and the second clamping member and the clamping degree of the rail clamping wheels and the rail are completely controlled by the nut 310 and the joint connecting rod connected to the nut, when the first clamping member and the second clamping member move downwards, the first clamping member 321 and the second clamping member 331 are controlled by the lower force of the nut, the joint connecting rod enables the upper ends of the first clamping member and the second clamping member to be opened, the first clamping member and the second clamping member swing, and the lower ends of the first clamping member and the second clamping member are close to each other, so that the first rail clamping wheels and the second rail clamping wheels are enabled to be close to the rail until the rail is completely contacted to realize clamping. Because the outline shapes of the first rail clamping wheel and the second rail clamping wheel are matched with the shape of the rail, and the process that the first rail clamping wheel and the second rail clamping wheel clamp the rail has the process of self-adapting to the adjusting position, when the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, the contact rail piece keeps a gap with the upper surface of the rail, and the contact rail piece does not need to be made into a wheel type.
And when the first rail clamping wheel and the second rail clamping wheel are close to each other to clamp the rail, the hook hooks the rail and keeps a gap with the rail.
The threaded rod and the nut have the axial self-locking performance, so that the clamping capacity of the rail clamping device can be maintained as long as the power machine does not rotate in the operation process.
According to the rail clamping device, the lower ends of the first clamping member and the second clamping member are favorable for reducing the storage size when being closed, and the rail clamping wheels are favorable for approaching the rail when being opened. Wherein, first clamp rail wheel and second clamp rail wheel are two, have increased the security redundancy. The hook is arranged between the two rail clamping wheels on the same side, the gap between the hook and the rail is larger than the gap between the rail clamping wheels and the rail, so that the hook is not in contact with the rail under the normal state, and the hook can play a certain rail clamping role when the rail wheels fail unexpectedly.
Claims (10)
1. Portable lift work platform of track presss from both sides rail ware, characterized by includes:
a support (100);
a power machine (200) fixed to the support and including a vertical threaded rod (210) that can be driven in rotation;
a clamping assembly (300) which is vertically constrained to the support; the clamping device comprises a nut (310), a first clamping part (320) and a second clamping part (330), wherein the first clamping part and the second clamping part are symmetrical; the first clamping part (320) comprises a first clamping member (321), a first joint connecting rod (322) and a first rail clamping wheel (323), and the first rail clamping wheel is assembled at the lower end of the first clamping member; the second clamping portion (330) comprises a second clamping member (331), a second joint connecting rod (332) and a second clamping rail wheel (333), and the second clamping rail wheel is assembled at the lower end of the second clamping member; the first clamping part and the second clamping part are symmetrically arranged on two sides of the nut, a connecting rod (340) is connected between the middle part of the first clamping member and the middle part of the second clamping member, the upper end of the first clamping member (321) is connected with the front side of the nut (310) through the first joint connecting rod (322), and the upper end of the second clamping member (331) is connected with the rear side of the nut (310) through the second joint connecting rod (332);
the threaded rod (210) is matched with the nut (310) through transmission threads so that the power machine drives the nut to lift through the threaded rod, the lifting of the nut is converted into the lifting of the clamping component through the clamping component, and the first rail clamping wheel (323) and the second rail clamping wheel (333) are close to or separate from each other.
2. The rail clamping device of claim 1, wherein the rail clamping device comprises: the support (100) is provided with a left wall (110) and a right wall (120) which are symmetrical, the left ends of the first clamping member and the second clamping member are in sliding fit with the left wall, and the right ends of the first clamping member and the second clamping member are in sliding fit with the right wall.
3. The rail clamping device of claim 2, which is a rail-moving type lifting working platform, and is characterized in that: the inner surface of the left wall is provided with a left guide plate (130), the inner surface of the right wall is provided with a right guide plate (140), the left guide plate is provided with a left front guide edge (131) and a left rear guide edge (132) which protrude out of the inner surface of the left wall, the right guide plate is provided with a right front guide edge (141) and a right rear guide edge (142) which protrude out of the inner surface of the right wall, a tension spring (350) is connected between the upper ends of the first clamping member (321) and the second clamping member (331), the upper end of the first clamping member is contacted on the left front guide edge and the right front guide edge through the elastic force of the tension spring, and the upper end of the second clamping member is contacted on the left rear guide edge and the right rear guide edge through the elastic force of the tension spring.
4. The rail clamp of claim 3, wherein: the distance between the upper end of the left front guide edge and the upper end of the left rear guide edge is greater than the distance between the lower end of the left front guide edge and the lower end of the left rear guide edge, and the distance between the upper end of the right front guide edge and the upper end of the right rear guide edge is greater than the distance between the lower end of the right front guide edge and the lower end of the right rear guide edge.
5. The rail clamp of claim 3, wherein: the upper end of the first clamping member is in rounded contact with the left and right front guide edges, and the upper end of the second clamping member is in rounded contact with the left and right rear guide edges.
6. The rail clamping device of the rail-moving type lifting working platform according to any one of claims 2 to 5, which is characterized in that: the first clamping member (321) comprises a first left side plate (325) and a first right side plate (326) connected together via a first rib plate (324), and the second clamping member comprises a second left side plate (335) and a second right side plate (336) connected together via a second rib plate (334); the first left side plate (325) and the second left side plate (335) abut against the inner surface of the left wall (110), and the first right side plate (326) and the second right side plate (336) abut against the inner surface of the right wall (120).
7. The rail clamping device of the rail-movable lifting working platform according to any one of claims 2 to 5, which is characterized in that: a front stop lever (150) is connected between the front edges of the left wall (110) and the right wall (120), a rear stop lever (160) is connected between the rear edges of the left wall and the right wall, and the first clamping member (321) and the second clamping member (331) are constrained between the front stop lever and the rear stop lever.
8. The rail clamping device of the rail-moving type lifting working platform according to any one of claims 1 to 5, which is characterized in that: the first rail clamping wheels (323) comprise at least two and are arranged along the left-right direction; the second rail clamping wheels (333) comprise at least two and are arranged along the left-right direction.
9. The rail clamping device of the rail-moving type lifting working platform according to any one of claims 1 to 5, which is characterized in that: the connecting rod (340) is provided with a rail contacting piece (341) extending downwards, and the first rail clamping wheel and the second rail clamping wheel keep a gap with the upper surface of the rail when closing to clamp the rail.
10. The rail clamping device of the rail-moving type lifting working platform according to any one of claims 1 to 5, which is characterized in that: the first clamping member and the second clamping member are respectively provided with a hook, and the hooks hook the track and keep a gap with the track when the first clamping rail wheel and the second clamping rail wheel are close to each other to clamp the track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221538503.0U CN217478886U (en) | 2022-06-17 | 2022-06-17 | Rail clamping device of rail-moving type lifting working platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221538503.0U CN217478886U (en) | 2022-06-17 | 2022-06-17 | Rail clamping device of rail-moving type lifting working platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217478886U true CN217478886U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221538503.0U Active CN217478886U (en) | 2022-06-17 | 2022-06-17 | Rail clamping device of rail-moving type lifting working platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217478886U (en) |
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2022
- 2022-06-17 CN CN202221538503.0U patent/CN217478886U/en active Active
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