CN219649792U - Pin dismounting device for coupler - Google Patents
Pin dismounting device for coupler Download PDFInfo
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- CN219649792U CN219649792U CN202321228923.3U CN202321228923U CN219649792U CN 219649792 U CN219649792 U CN 219649792U CN 202321228923 U CN202321228923 U CN 202321228923U CN 219649792 U CN219649792 U CN 219649792U
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- 230000008878 coupling Effects 0.000 claims abstract description 41
- 238000010168 coupling process Methods 0.000 claims abstract description 41
- 238000005859 coupling reaction Methods 0.000 claims abstract description 41
- 230000007423 decrease Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model provides a coupling pin dismounting device, comprising: a holder having a first surface provided as an inclined surface with respect to a vertical surface; the impact block is in sliding connection with the first surface, and the thickness of the impact block gradually decreases in the sliding direction along the first surface; and the bottom plate is fixedly connected with the retainer and is arranged on a moving path of the impact block along the first surface. According to the hydraulic coupler, the retainer is attached to the surface of the hydraulic coupler, the impact block is clamped between the elastic pin and the first surface of the retainer, part of impact force is transmitted to the elastic pin by the impact block, the thickness is gradually increased in the process that the impact block slides down along the first surface, the elastic pin is further extruded, and finally the elastic pin is ejected out of the coupler under the dual actions of the impact force and the extrusion force.
Description
Technical Field
The utility model relates to the technical field of dismounting tools, in particular to a coupling pin dismounting device.
Background
The transportation belt driving motor of the coal washery and the speed reducer are driven by the hydraulic coupler, the hydraulic coupler is connected with the elastic pin for the coupler, and during production operation, the buffer ring of the elastic pin is easy to age, lose elasticity and even break, so that mechanical accidents such as large equipment vibration and wearing of a pin hole of the coupler can be possibly caused, and therefore, the buffer ring needs to be replaced regularly. When the buffer ring is replaced, the coupling pin is detached firstly, the elastic pin is ejected out of the coupling by means of external force, and the operation space is narrow when the disassembly operation is carried out because the distance between the top end of the elastic pin and the hydraulic coupler is generally only 30-40 mm. At present, most use the crow bar to dismantle the operation, when dismantling, insert the first end of crow bar in the clearance between elastic pin and the fluid coupling to make crow bar and elastic pin butt, apply the external force towards the fluid coupling direction to the crow bar second end, thereby make the first end of crow bar apply the counter-direction effort towards the elastic pin direction, finally with the elastic pin ejecting in the shaft coupling. The method for disassembling the elastic pin has the advantages of high labor intensity, inconvenient operation and low disassembly efficiency, and operators are easy to be squeezed in the process of prying the elastic pin by using the crowbar.
Disclosure of Invention
In view of this, the present utility model provides a coupling pin removal device. The retainer is attached to the surface of the hydraulic coupler, the impact block is clamped between the elastic pin and the first surface of the retainer, the impact block is knocked from the upper portion, then the impact block transmits a part of knocking external force to the elastic pin, meanwhile, under the action of the knocking external force and self gravity, the thickness of the impact block is gradually increased along the first surface of the retainer in the process of sliding down, the elastic pin is further extruded, finally, under the dual action of the knocking external force and the extrusion force, the elastic pin is ejected out of the coupler, the impact block falls to the bottom plate to be recovered, the labor intensity of the whole operation process is low, the operation is convenient, the disassembly efficiency is high, and the risk of injury of operators is avoided, so that the defects of the prior art are overcome.
The utility model provides a coupler pin dismounting device, which comprises:
a holder, the first surface of the holder being provided as a bevel to a vertical face;
a strike block in sliding connection with the first surface, the strike block having a thickness that gradually decreases in a direction along the first surface;
the bottom plate is fixedly connected with the retainer and arranged on a moving path of the impact block along the first surface.
Optionally, the holder includes backup pad and sliding plate, the first end of backup pad with the first end fixed connection of sliding plate, the second end of backup pad with the second end of sliding plate respectively with bottom plate fixed connection, the backup pad is vertical to be set up, the sliding plate with be an contained angle setting between the backup pad, the sliding plate is dorsad one side surface of backup pad forms first surface.
Optionally, sliding grooves are respectively formed on two opposite sides of the extending direction of the sliding plate; the sliding blocks are respectively fixed on the two opposite sides of the impact block, and are arranged in the sliding grooves and are in sliding connection with the sliding grooves.
Optionally, the coupling pin removing device further includes: and the spring is fixed on the bottom plate and is positioned on a moving path of the impact block sliding downwards along the first surface.
Optionally, the coupling pin removing device further includes: the baffle is fixedly connected with one end of the spring, which faces the impact block.
Optionally, the coupling pin removing device further includes: the handle is fixedly connected with the side wall of the retainer.
Optionally, the coupling pin removing device further includes: the connecting piece is fixedly connected with the side wall of the retainer, and the inner wall of the connecting piece is provided with internal threads; one end of the handle is provided with external threads, and the handle is in threaded connection with the connecting piece.
Optionally, the coupling pin removing device further includes: and the stress column is fixedly connected with one end of the impact block, which is opposite to the bottom plate.
Optionally, the coupling pin removing device further includes: and the lifting part is fixedly connected with one end of the stress column, which is opposite to the impact block.
Optionally, the cage further comprises: the support block is arranged between the support plate and the sliding plate and is fixedly connected with the support plate and the sliding plate respectively.
Compared with the prior art, the technical scheme provided by the utility model has at least the following beneficial effects:
according to the coupler pin dismounting device, the retainer is attached to the surface of the hydraulic coupler, the impact block is clamped between the elastic pin and the first surface of the retainer, the impact block is knocked from the upper side, a part of knocking force is transmitted to the elastic pin by the impact block, meanwhile, under the action of the knocking force and self gravity, the thickness of the impact block is gradually increased in the process of sliding down along the first surface of the retainer, the elastic pin is further extruded, and finally, the elastic pin is ejected out of the coupler under the dual action of the knocking force and the extrusion force.
Drawings
FIG. 1 is a schematic view of a coupling pin removal device according to one embodiment of the present utility model;
FIG. 2 is a side view of the coupling pin removal device of FIG. 1;
fig. 3 is a schematic view of the coupling pin removal device of fig. 1 in an operational state.
Reference numerals:
1: a retainer; 101: a support plate; 102: a sliding plate; 103: a sliding groove; 104: a support block; 2: an impact block; 201: a sliding block; 3: a bottom plate; 4: a spring; 5: a baffle; 6: a handle; 7: a connecting piece; 8: a stress column; 9: a lifting part; 10: a coupling; 11: an elastic pin; 12: a fluid coupling.
Detailed Description
Embodiments of the present utility model will be further described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present utility model, and are not to indicate or imply that the apparatus or component 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
FIG. 1 is a schematic view of a coupling pin removal device according to one embodiment of the present utility model; FIG. 2 is a side view of the coupling pin removal device of FIG. 1; fig. 3 is a schematic view of the coupling pin removal device of fig. 1 in an operational state.
As shown in fig. 1-3, the coupling pin removal device includes a cage 1, a strike block 2, and a base plate 3. The first surface of the retainer 1 is provided as an inclined surface opposite to the vertical surface; the impact block 2 is in sliding connection with the first surface, and the thickness of the impact block 2 gradually decreases in the direction of sliding down the first surface; the bottom plate 3 is fixedly connected with the retainer 1, and is disposed on a moving path along which the impact block 2 slides down along the first surface.
When the hydraulic coupler is used, the retainer 1 is attached to one side surface of the hydraulic coupler 12, which faces the elastic pin 11, the first surface of the retainer 1 faces the elastic pin 11, the impact block 2 is clamped between the first surface of the retainer 1 and the elastic pin 11, the impact block 2 is abutted against the elastic pin 11, then the impact block 2 is knocked in the inclined direction of the first surface of the retainer 1 above the impact block 2, the impact block 2 is subjected to a knocking force Fo in the direction of the first surface, a part of the knocking force is decomposed into a vertical knocking force Fy in the vertical direction according to a force decomposition principle, a part of the horizontal knocking force Fx acts on the elastic pin 11, an impact force in the direction opposite to the impact block 2 is applied to the elastic pin 11, meanwhile, under the double action of the vertical knocking force Fy and self gravity, the impact block 2 slides downwards along the first surface of the retainer 1, the thickness of the impact block 2 is gradually reduced in the direction along the first surface, namely, the impact force Fy is gradually reduced in the direction opposite to the impact block 11, the impact block is gradually reduced in the direction along the direction of the impact block 11, the impact block 11 is gradually slides downwards, and the impact force is gradually increased in the direction of the elastic pin 11, the impact force is gradually reduced to the elastic pin 11 is applied to the elastic pin 11, and the impact force is gradually reduced to the elastic pin 11 is gradually and the impact force is gradually reduced to the impact force is recovered.
By adopting the coupler pin dismounting device disclosed by the utility model, the retainer 1 is attached to the surface of the hydraulic coupler 12, the impact block 2 is clamped between the elastic pin 11 and the first surface of the retainer 1, the impact block 2 is knocked from the upper part, then part of knocking force is transmitted to the elastic pin 11 by the impact block 2, meanwhile, under the action of the knocking force and self gravity, the thickness of the impact block 2 is gradually increased in the process of sliding down along the first surface of the retainer 1, the elastic pin 11 is further extruded, and finally, under the double actions of the knocking force and the extrusion force, the elastic pin 11 is ejected out of the coupler 10, so that the whole dismounting process is small in labor intensity, convenient to operate, high in dismounting efficiency and free of the risk of injury of operators.
In this embodiment, as shown in fig. 2 and 3, a vertical surface is set as a side surface of the retainer 1, which is attached to the fluid coupling 12, and a side surface of the retainer 1, which is slidably connected to the impact block 2, is set as a first surface, which is an inclined surface with respect to the vertical surface, and an angle between the first surface and the vertical surface is denoted as α, when the impact block 2 is knocked, a knocking force Fo is applied in a direction parallel to the first surface, and according to a principle of force decomposition, a horizontal knocking force fx=fo=sin α decomposed to a horizontal direction is an impact force acting on the elastic pin 11, and in this embodiment, an angle between the first surface and the vertical surface is denoted as 2 °. The bottom plate 3 is fixedly connected to the lower end of the retainer 1, and has a width greater than that of the retainer 1, so that the elastic pin 11 is pushed out of the coupling 10, and then the impact block 2 slides down and falls onto the bottom plate 3, and in this embodiment, the bottom plate 3 is made of a rectangular steel plate with a length of 100mm x 48 mm and a thickness of 5 mm. As shown in fig. 1, the impact block 2 can slide up and down along the first surface of the holder 1 in the arrow direction in the drawing, and the projection perpendicular to the sliding direction is rectangular, as shown in fig. 2, the projection of the impact block 2 in the cross-section direction of the holder 1 is trapezoidal, the thickness of the impact block gradually decreases in the direction toward the bottom plate 3, so that the surface of the side of the impact block 2 facing away from the holder 1 forms an inclined plane with respect to the vertical plane, in this embodiment, the length of the impact block 2 is 100mm, the thickness of the upper end is 20mm, the thickness of the lower end is 10mm, and 1 is formed: 10. In this embodiment, the impact block 2 is formed by splicing and welding multiple steel plates, the inside is hollow, the impact block 2 can also be set to be a solid according to practical application conditions, the specific shape and size of the impact block 2, the specific shape and size of the bottom plate 3 and the specific shape and size of the retainer 1 can be adjusted, and the included angle between the first surface and the vertical surface and the inclination of the inclined surface formed by the thickness variation of the impact block 2 can also be adjusted.
Optionally, the holder 1 includes a support plate 101 and a sliding plate 102, a first end of the support plate 101 is fixedly connected with a first end of the sliding plate 102, a second end of the support plate 101 and a second end of the sliding plate 102 are respectively fixedly connected with the bottom plate 3, the support plate 101 is vertically disposed, an included angle is formed between the sliding plate 102 and the support plate 101, and a surface of one side of the sliding plate 102 opposite to the support plate 101 forms the first surface. This arrangement simplifies the structural composition of the cage 1, facilitating assembly and operation.
In this embodiment, as shown in fig. 2, the supporting plate 101 is vertically disposed, and is attached to the fluid coupler 12 during the disassembly operation, the sliding plate 102 is obliquely disposed, the impact block 2 slides up and down along the sliding plate 102, the upper end of the supporting plate 101 is welded to the upper end of the sliding plate 102, and the lower end of the supporting plate 101 and the lower end of the sliding plate 102 are respectively welded to the bottom plate 3. In this embodiment, the included angle between the support plate 101 and the sliding plate 102 is 2 °, and both are made of steel plates with a thickness of 5 mm, which is 60 mm by 204 mm in width. According to practical application, the shape and size of the support plate 101 and the sliding plate 102 can be adjusted, and the specific included angle between the two can be adjusted.
Alternatively, the sliding plate 102 is provided with sliding grooves 103 on opposite sides in the extending direction; the sliding blocks 201 are respectively fixed on two opposite sides of the impact block 2, and the sliding blocks 201 are arranged in the sliding grooves 103 and are in sliding connection with the sliding grooves 103. By means of the arrangement, smooth sliding of the impact block 2 on the first surface is achieved by means of matching sliding of the sliding block 201 and the sliding groove 103, meanwhile, constraint limiting is conducted on the sliding direction of the impact block 2 along the first surface, and deviation of the moving direction of the impact block 2 under the action of knocking force is prevented.
In this embodiment, as shown in fig. 1, L-shaped steel plates with opposite openings are fixed on the left and right sides of the sliding plate 102, the sliding groove 103 is enclosed between the L-shaped steel plates and the sliding plate 102, and the sliding groove 103 is 8 mm deep, 12 mm wide, 182 mm long, and a certain distance is kept between the sliding plate 102 and the upper end and the lower end of the sliding plate. The impact block 2 is positioned between the sliding grooves 103 on two sides, the sliding blocks 201 with the same length are welded on the left side and the right side of the impact block 2 respectively, and the thickness of the sliding blocks 201 is smaller than the minimum thickness of the impact block 2. The sliding blocks 201 are respectively inserted into the sliding grooves 103 on two sides, and when the impact block 2 is subjected to external knocking force, the sliding blocks 201 slide in the sliding grooves 103 to drive the impact block 2 to slide on the sliding plate 102. The upper end of the sliding groove 103 is opened, and the striker 2 can be taken out from the upper end of the sliding groove 103 when the device is not in use. According to practical applications, the sliding groove 103 may be formed in any structure, and the extension length of the sliding groove 103 and the size of the sliding block 201 may be adjusted, so long as the sliding block 201 can slide smoothly in the sliding groove 103.
Optionally, the coupling 10 pin removing device further includes a spring 4, where the spring 4 is fixed on the base plate 3 and is located on a moving path of the impact block 2 sliding down along the first surface. In this arrangement, the impact block 2 first contacts the spring 4 when sliding to the bottom along the first surface of the retainer 1, thereby relieving the impact force on the bottom plate 3.
In this embodiment, as shown in fig. 1, two springs 4 are fixed on a side surface of the bottom plate 3 facing the impact block 2 at intervals, and are located on a moving path of the impact block 2 sliding down along the first surface, the impact block 2 falls onto the springs 4, and the springs 4 absorb a part of kinetic energy, so that impact force on the bottom plate 3 is relieved. In this embodiment, the specification of each spring 4 is 0.8×10×20 mm. According to practical application, the specific specification of the springs 4 and the number of the springs 4 can be adjusted.
Optionally, the coupling 10 pin disassembling device further comprises a baffle 5, and the baffle 5 is fixedly connected with one end of the spring 4, which faces the impact block 2. According to the arrangement, the impact block 2 is contacted with the baffle plate 5 after sliding down, and the cross section area of the baffle plate 5 is larger than that of the spring 4, so that the unit area impact force born by the spring 4 is reduced, and the service life of the spring 4 is prolonged.
In this embodiment, as shown in fig. 1, the baffle 5 is fixed at the upper end of the spring 4, and the baffle 5 is a rectangular parallelepiped plate body, and the left and right ends thereof extend into the sliding grooves 103 on both sides respectively. The specific shape and size of the baffle 5 can be adjusted according to practical application.
Optionally, the coupling 10 pin removing device further comprises a handle 6, and the handle 6 is fixedly connected with the side wall of the retainer 1. The handle 6 is arranged, and when the impact block 2 is knocked, the handle 6 can be held to prevent the device from being shifted.
In this embodiment, as shown in fig. 1, the handle 6 is fixed to the left side wall of the holder 1 and is located at a position above the center in the height direction of the holder 1. The handle 6 and the retainer 1 may be fixedly connected by welding, screwing, or the like.
Optionally, the coupling 10 pin dismounting device further comprises a connecting piece 7, wherein the connecting piece 7 is fixedly connected with the side wall of the retainer 1, and the inner wall of the connecting piece 7 is provided with an internal thread; an external thread is arranged at one end of the handle 6, and the handle 6 is in threaded connection with the connecting piece 7. By the arrangement, the connection mode between the handle 6 and the retainer 1 is simplified, the handle 6 is detached when the device is not used, and the storage space can be saved.
In this embodiment, the connecting piece 7 is a nut, and in fig. 1, the left and right side walls of the retainer 1 are both welded with nuts, one end of the handle 6 is provided with external threads and is in threaded connection with the nuts, so that the handle 6 is conveniently mounted in the connecting piece 7, one end of the handle 6, which is not provided with external threads, is fixedly connected with a holding portion, and the cross-sectional area of the holding portion is larger, so that the holding and rotation of an operator are facilitated. According to practical application, the connecting piece 7 may be selected from other structures other than nuts, so long as it can be fixed on the holder 1 and can be connected with the handle 6 through screw threads.
Optionally, the coupling 10 pin dismounting device further comprises a stress column 8, and the stress column 8 is fixedly connected with one end of the impact block 2, which is opposite to the bottom plate 3. In this arrangement, after the impact block 2 slides down along the first surface of the retainer 1, the stress column 8 can be always exposed out of the retainer 1 in the height direction, so as to facilitate the operator to strike.
In this embodiment, as shown in fig. 1 to 3, the stress column 8 is a cylinder, and is welded to the central position of the upper end face of the impact block 2. The shape and size of the stress column 8 and the specific connection position with the impact block 2 can be adjusted according to the practical application.
Optionally, the coupling 10 pin dismounting device further comprises a lifting part 9, and the lifting part 9 is fixedly connected with one end of the stress column 8, which is opposite to the impact block 2. The lifting part 9 is arranged, and after the elastic pin 11 is ejected out of the coupler 10, the impact block 2 falling to the bottom plate 3 is conveniently pulled out upwards by holding the lifting part 9.
In this embodiment, as shown in fig. 1-3, the lifting portion 9 is welded to the central position of the upper end of the stress column 8, and is integrally a cylinder, and for convenience in holding, the turning positions at the upper end of the lifting portion 9 are all set to be arc transitions. The specific shape and size of the lifting part 9 and the specific connection position with the stress column 8 can be adjusted according to the practical application.
Optionally, the holder 1 further includes a supporting block 104, where the supporting block 104 is disposed between the supporting plate 101 and the sliding plate 102, and is fixedly connected with the supporting plate 101 and the sliding plate 102 respectively. This arrangement improves the support strength of the support plate 101 and the sliding plate 102, and further improves the support and bearing effect on the impact block 2.
As shown in fig. 2 and 3, in the present embodiment, a plurality of support blocks 104 are disposed at intervals between the support plate 101 and the sliding plate 102, and opposite ends of the support blocks 104 are welded to the support plate 101 and the sliding plate 102, respectively. According to practical applications, the number of the supporting blocks 104 and the specific shape and size of the supporting blocks can be adjusted to adapt to different distances between the supporting plate 101 and the sliding plate 102.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A coupling pin removal apparatus comprising:
a holder, the first surface of the holder being provided as a bevel to a vertical face;
a strike block in sliding connection with the first surface, the strike block having a thickness that gradually decreases in a direction along the first surface;
the bottom plate is fixedly connected with the retainer and arranged on a moving path of the impact block along the first surface.
2. The coupling pin removal apparatus of claim 1, wherein:
the retainer comprises a supporting plate and a sliding plate, wherein the first end of the supporting plate is fixedly connected with the first end of the sliding plate, the second end of the supporting plate is fixedly connected with the bottom plate respectively, the supporting plate is vertically arranged, an included angle is formed between the sliding plate and the supporting plate, and the sliding plate is opposite to the first surface formed on one side surface of the supporting plate.
3. The coupling pin removal apparatus of claim 2, wherein:
the two opposite sides of the extending direction of the sliding plate are respectively provided with a sliding groove;
the sliding blocks are respectively fixed on the two opposite sides of the impact block, and are arranged in the sliding grooves and are in sliding connection with the sliding grooves.
4. A coupling pin removal apparatus as claimed in any one of claims 1-3, further comprising:
and the spring is fixed on the bottom plate and is positioned on a moving path of the impact block sliding downwards along the first surface.
5. The coupling pin removal apparatus of claim 4, further comprising:
the baffle is fixedly connected with one end of the spring, which faces the impact block.
6. A coupling pin removal apparatus as claimed in any one of claims 1-3, further comprising:
the handle is fixedly connected with the side wall of the retainer.
7. The coupling pin removal apparatus of claim 6, further comprising:
the connecting piece is fixedly connected with the side wall of the retainer, and the inner wall of the connecting piece is provided with internal threads;
one end of the handle is provided with external threads, and the handle is in threaded connection with the connecting piece.
8. A coupling pin removal apparatus as claimed in any one of claims 1-3, further comprising:
and the stress column is fixedly connected with one end of the impact block, which is opposite to the bottom plate.
9. The coupling pin removal apparatus of claim 8, further comprising:
and the lifting part is fixedly connected with one end of the stress column, which is opposite to the impact block.
10. A coupling pin removal apparatus as claimed in claim 2 or claim 3, wherein the cage further comprises:
the support block is arranged between the support plate and the sliding plate and is fixedly connected with the support plate and the sliding plate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321228923.3U CN219649792U (en) | 2023-05-19 | 2023-05-19 | Pin dismounting device for coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321228923.3U CN219649792U (en) | 2023-05-19 | 2023-05-19 | Pin dismounting device for coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219649792U true CN219649792U (en) | 2023-09-08 |
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ID=87879317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321228923.3U Active CN219649792U (en) | 2023-05-19 | 2023-05-19 | Pin dismounting device for coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219649792U (en) |
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2023
- 2023-05-19 CN CN202321228923.3U patent/CN219649792U/en active Active
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