CN214837947U - Coupler hub capable of being installed quickly and coupler - Google Patents
Coupler hub capable of being installed quickly and coupler Download PDFInfo
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- CN214837947U CN214837947U CN202023092911.1U CN202023092911U CN214837947U CN 214837947 U CN214837947 U CN 214837947U CN 202023092911 U CN202023092911 U CN 202023092911U CN 214837947 U CN214837947 U CN 214837947U
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Abstract
The application discloses shaft coupling wheel hub and shaft coupling that can install fast. The quick-mounting coupler is characterized in that a radial hoisting hole is formed in the coupler hub capable of being mounted quickly, and the central axis of the radial hoisting hole passes through the center of gravity of the coupler hub capable of being mounted quickly. The utility model provides a be provided with radial hole for hoist on the shaft coupling wheel hub that can install fast, and the central axis of radial hole for hoist passes through wheel hub's focus, when using, be used for installing rings or other lifting means on the radial hole for hoist, wheel hub's focus is passed to the axis of this screw hole. When lifting by crane like this, just can guarantee that the shaft hole of wheel hub is the horizontally, conveniently aligns with the installation axle to realize quick installation.
Description
Technical Field
The application relates to the technical field of couplings, in particular to a coupling hub and a coupling capable of being installed quickly.
Background
Coupling wheel hub generally contains interference fit, excessive fit and clearance fit with the cooperation size of being connected of installation axle, no matter which kind of cooperation mode of adoption, when installation wheel hub, all need adjust the axis of wheel hub's mounting hole well with the axis of installation axle, just can install smoothly, and in the actual installation, just adjust the problem that this one step of operation appears most well, because the fit clearance between the shaft hole is very little, even clearance fit, the clearance is also not big, if the centering is not good, hardly install. For a hub with smaller weight, the installation is easy to align, but once the weight exceeds the weight that a person can take, when a hoisting tool is needed for installation, the alignment is time-consuming and labor-consuming, generally, the hub is hoisted by a hoisting belt, and the level is difficult to adjust.
Accordingly, it would be desirable to have a solution that overcomes or at least alleviates at least one of the above-mentioned difficulties of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a shaft coupling wheel hub that can install fast, overcome or alleviate at least one above-mentioned defect of prior art.
The utility model discloses an aspect provides a shaft coupling wheel hub that can install fast, be provided with radial hole for hoist on the shaft coupling wheel hub, the central axis in radial hole for hoist passes through wheel hub's focus.
Optionally, a key groove which is concave to the outer wall direction is formed in the inner wall of the coupler hub, and the radial hoisting hole is communicated with the key groove.
Optionally, the coupling hub comprises an outer sleeve and an inner sleeve, and an oil storage cavity is arranged between the outer sleeve and the inner sleeve;
be provided with inlet port and oil outlet on shaft coupling wheel hub's the overcoat, the inlet port with the oil outlet communicates respectively the oil storage chamber.
Optionally, the radial hoisting hole is arranged on the outer sleeve, and the radial hoisting hole is a blind hole.
Optionally, a flange is arranged on the coupling hub, and the flange is used for connecting with other components.
Optionally, be provided with the excircle arch on the overcoat, the inlet port and the oil outlet sets up on the excircle arch.
Optionally, at least one outer circular protrusion is arranged at one end of the coupling hub far away from the flange; and/or at least one excircle bulge is arranged in the middle of the coupling hub.
The application also provides a coupler, the coupler includes first wheel hub and second wheel hub, wherein, first wheel hub and/or second wheel hub be as above the coupler wheel hub that can install fast.
Optionally, the first hub includes a first connecting structure, and the first connecting structure is provided with a pin hole;
the second hub comprises a second connecting structure, and a pin hole is formed in the second connecting structure; wherein the content of the first and second substances,
at least two pin holes in the pin holes are conical holes;
if the tapered hole is positioned on the first connecting structure, the tapered hole positioned on the first connecting structure is matched with pin holes positioned on the second connecting structure except the tapered hole for use;
if the tapered hole is positioned on the second connecting structure, the tapered hole positioned on the second connecting structure is matched with the pin hole positioned on the first connecting structure except the tapered hole for use;
when the first hub is assembled with the second hub, the pin holes used in the first connecting structure and the second connecting structure in a matching mode are configured to be penetrated by the positioning pins, so that the positioning pins are under the action of the inner walls of the pin holes in the process of entering the pin holes, and the central axes of the second hubs are guided to be overlapped.
Optionally, the coupling further comprises: the first wheel hub is at least partially arranged in the shell, the second wheel hub is at least partially arranged in the shell, the oil inlet hole and the oil outlet hole in the first wheel hub are formed in the portion, located in the shell, of the first wheel hub, and the oil inlet hole and the oil outlet hole in the second wheel hub are formed in the portion, located in the shell, of the second wheel hub.
Advantageous effects
The utility model provides a be provided with radial hole for hoist on the shaft coupling wheel hub that can install fast, and the central axis of radial hole for hoist passes through wheel hub's focus, when using, be used for installing rings or other lifting means on the radial hole for hoist, wheel hub's focus is passed to the axis of this screw hole. When lifting by crane like this, just can guarantee that the shaft hole of wheel hub is the horizontally, conveniently aligns with the installation axle to realize quick installation.
Drawings
Fig. 1 is a schematic structural view of a coupling hub capable of being quickly installed according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a third embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a fourth embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a fifth embodiment of the present invention.
Fig. 6 is a schematic structural view of a coupling hub capable of being quickly installed according to a sixth embodiment of the present invention.
Fig. 7 is a schematic structural view of a coupling hub capable of being quickly installed according to a seventh embodiment of the present invention.
Fig. 8 is a schematic structural view of a coupling hub capable of being quickly installed according to an eighth embodiment of the present invention.
Fig. 9 is a schematic structural view of a coupling hub capable of being quickly installed according to a ninth embodiment of the present invention.
Fig. 10 is a schematic structural view of a coupling hub capable of being quickly mounted according to a tenth embodiment of the present invention.
Fig. 11 is a schematic structural view of a coupling hub capable of being quickly installed according to an eleventh embodiment of the present invention.
Fig. 12 is a schematic structural view of a coupler hub capable of being quickly installed according to a twelfth embodiment of the present invention.
Reference numerals:
1. a coupling hub that can be quickly installed; 2. a jacket; 3. a flange; 4. an outer wall groove; 5. an oil inlet hole; 6. an inner sleeve; 7. an oil storage chamber; 8. a pin hole; 9. radial hoisting holes; 10. the excircle is convex; 11. A keyway; 12. an oil outlet.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be considered limiting of the scope of the present application.
Fig. 1 is a schematic structural view of a coupling hub capable of being quickly installed according to a first embodiment of the present invention. Fig. 2 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a second embodiment of the present invention. Fig. 3 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a third embodiment of the present invention. Fig. 4 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a fourth embodiment of the present invention. Fig. 5 is a schematic structural diagram of a coupling hub capable of being quickly installed according to a fifth embodiment of the present invention. Fig. 6 is a schematic structural view of a coupling hub capable of being quickly installed according to a sixth embodiment of the present invention. Fig. 7 is a schematic structural diagram of a coupling according to a first embodiment of the present invention. Fig. 8 is a schematic structural view of a coupling hub capable of being quickly installed according to an eighth embodiment of the present invention. Fig. 9 is a schematic structural view of a coupling hub capable of being quickly installed according to a ninth embodiment of the present invention. Fig. 10 is a schematic structural view of a coupling hub capable of being quickly mounted according to a tenth embodiment of the present invention.
As shown in fig. 1 to 12, a radial hoisting hole 9 is provided on the coupling hub 1 capable of being quickly installed, and the central axis of the radial hoisting hole 9 passes through the center of gravity of the coupling hub 1 capable of being quickly installed.
The utility model provides a be provided with radial hole for hoist on the shaft coupling wheel hub that can install fast, and the central axis of radial hole for hoist passes through wheel hub's focus, when using, be used for installing rings or other lifting means on the radial hole for hoist, wheel hub's focus is passed to the axis of this screw hole. When lifting by crane like this, just can guarantee that the shaft hole of wheel hub is the horizontally, conveniently aligns with the installation axle to realize quick installation.
Referring to fig. 1, in the embodiment shown in fig. 1, a key groove 11 recessed in the direction of the outer wall is formed in the inner wall of the coupling hub capable of being quickly mounted, and the radial hoisting holes 9 are communicated with the key groove 11.
By adopting the mode, when the coupler hub is used, the key is arranged in the key groove 11, and the positioning pin can be inserted into the radial hoisting hole to abut against the key in the key groove, so that the stability of the whole device is further improved.
Referring to fig. 1 to 6, in the present embodiment, the coupling hub capable of being quickly installed includes an outer sleeve 2 and an inner sleeve 6, and an oil storage cavity 7 is disposed between the outer sleeve 2 and the inner sleeve 6; be provided with inlet port 5 and oil outlet 12 on shaft coupling wheel hub's that can install fast overcoat 2, inlet port 5 communicates oil storage chamber 7 respectively with oil outlet 12.
Referring to fig. 1 to 6, in the present embodiment, the radial hoisting holes 9 are provided on the outer jacket 2, and the radial hoisting holes are blind holes.
By adopting the mode, the axle hole of the hub can be ensured to be horizontal during hoisting, and the hub is conveniently aligned with the mounting shaft so as to realize quick mounting.
In addition, for the wheel hub, the alignment is convenient, the clearance between the inner hole of the wheel hub and the mounting shaft can be adjusted to be small, and therefore higher torque can be transmitted under the same pressure.
Referring to fig. 1 to 10, in the present embodiment, a flange 3 is provided on the coupling hub capable of quick mounting, and the flange 3 is used for connecting with other components.
In the present application, other components such as a hub, it is understood that the hub may be a quick-fit coupling hub of the present application, or may be other types of hubs.
Referring to fig. 1 to 10, in the present embodiment, an outer circular protrusion 10 is provided on the outer sleeve, and the oil inlet hole 5 and the oil outlet hole 12 are provided on the outer circular protrusion 10.
Referring to fig. 1 to 6, in the present embodiment, at least one outer circular protrusion 10 is disposed at an end of the coupling hub 1 away from the flange, which enables quick installation; and/or the presence of a gas in the gas,
at least one outer circular protrusion 10 is arranged in the middle of the coupling hub 1 which can be quickly mounted.
Referring to fig. 3 and 6, in the present embodiment, the number of the outer protrusions is at least two.
In this application, inlet port 5 and oil outlet 12 can set up on an excircle arch, also can set up on a plurality of excircle archs, can be provided with inlet port 5 and oil outlet 12 on some excircle archs, do not be provided with inlet port 5 and oil outlet 12 on some excircle archs. The excircle bulge is provided with the inlet port some times, and the excircle bulge is provided with the oil outlet some times.
In one embodiment, the outer protrusions are all arranged on the outer sleeve 2, the flange 3 is arranged at one end of the outer sleeve 2, and at least one circular protrusion 10 is arranged at the other end of the outer sleeve or at least one circular protrusion is arranged in the middle of the outer sleeve.
In one embodiment, the outer circular protrusions 10 are all provided on the inner sleeve 6, the flange 3 is provided at one end of the inner sleeve, at least one outer circular protrusion is provided at the other end of the inner sleeve, and the outer sleeve is axially positioned between the first outer circular protrusion 10 and the outer circular protrusion at the other end.
In one embodiment, the outer circumferential projection 10 is arranged on the outer sleeve 2 as well as on the inner sleeve 6, wherein the flange 3 is arranged on the inner sleeve 6 or on the outer sleeve 2; in other excircle protrusions, the excircle protrusion is at least positioned at one or more positions in one end of the inner sleeve, one end of the outer sleeve, and the middle of the outer sleeve, wherein the end of the inner sleeve is far away from the first excircle protrusion, the end of the outer sleeve, and the middle of the outer sleeve.
In the present embodiment, one or more of the outer cylindrical protrusions 10 are annular outer cylindrical protrusions.
In one embodiment, the cylindrical protrusions are all annular cylindrical protrusions.
In this application, the quantity of excircle arch can be set for by oneself as required. For example, two, three, four, five, or more are provided in the outer sheath axial direction.
It will be appreciated that in one embodiment, a non-uniform arrangement is also possible.
In the present application, these outer cylindrical protrusions may be annular, i.e. arranged circumferentially around the outer jacket.
In the present application, these cylindrical protrusions may also be of other shapes.
In one embodiment, the one or more outer circumferential projections 10 are projections disposed circumferentially away from the center of the hub from where they are disposed.
Referring to fig. 6, in the embodiment shown in fig. 6, the outer circular protrusion is a cylindrical outer circular protrusion, and with this arrangement, when the outer circular protrusion is machined, the machining is relatively convenient.
By adopting the arrangement, the cylinder can be directly welded on the outer sleeve, and the processing is more convenient.
Referring to fig. 1 to 4, in the present application, the outer circular protrusion may be provided in plural in the axial direction of the outer sleeve, and may also be provided in plural in the circumferential direction of the outer sleeve.
In this embodiment the flange may be arranged just on the end face of one end of the outer sleeve 2 or may be at a distance from the end face of the outer sleeve, e.g. 10cm, 5cm etc.
In this embodiment, the flange is an annular flange. It will be appreciated that the flange may also be of other shapes, for example, circumferentially discontinuous.
Referring to fig. 1, 3 and 4, in one embodiment, the oil inlet and outlet holes are provided on an outer circular protrusion, which may be annular, i.e., disposed circumferentially around the outer sleeve. The oil inlet hole and the oil outlet hole are symmetrically arranged on the excircle protrusion.
In one embodiment, the oil inlet hole and the oil outlet hole are formed in two different outer circular protrusions, and one outer circular protrusion is provided.
In one embodiment, the oil inlet hole and the oil outlet hole are respectively formed on different outer protrusions 10.
Referring to fig. 4, in the present embodiment, the outer wall of the outer sleeve 2 has an outer wall groove at the position where the outer wall is connected to the flange; the outer wall groove is an annular groove or a plurality of discontinuous grooves arranged along the circumferential direction of the outer wall of the outer sleeve.
In this embodiment, the outer wall groove is recessed in a direction toward the center line of the large-bore hydraulic coupling hub.
In this embodiment, the outer wall recess includes first section and second section, first section one end and the protruding contact of first excircle, and the other end of first section is connected with the one end of second section.
In this embodiment, the first segment is an arc segment extending and bending from one end to the other end; the second section is a straight line section.
By adopting the structure, the torsional stress at the joint of the outer wall of the outer sleeve 2 and the first excircle protrusion can be reduced.
In this embodiment, at least one of the other outer protrusions is disposed in the middle of the outer sleeve in the axial direction, and the outer protrusion is an annular outer protrusion disposed circumferentially around the outer wall of the outer sleeve 2.
In this application, the middle part sets up annular protruding, and when the shaft coupling wheel hub atress that can install fast of this application, the middle part warp most easily, and is protruding through the excircle that sets up the middle part, can increase the holding capacity at middle part, prevents to warp.
In the present embodiment, the dimension of the outer circumferential projection in the axial direction of the outer jacket is 18mm to 50 mm.
In this embodiment, the dimension of the outer circumferential projection in the radial direction of the outer sleeve is smaller than the dimension of the flange in that direction.
In this embodiment, the first outer circular protrusion is provided with a plurality of grooves circumferentially arranged on the first outer circular protrusion, and each groove is recessed from the outer wall of the first outer circular protrusion to the inner wall; and/or the presence of a gas in the gas,
the second excircle protrusion is provided with a plurality of grooves which are arranged in the circumferential direction of the second excircle protrusion, and each groove is concave from the outer wall of the second excircle protrusion to the inner wall.
The first outer circular bulge and/or the second outer circular bulge are/is provided with the grooves, so that the weight of the large-aperture hydraulic coupling hub can be further reduced.
Referring to fig. 8 to 10, the outer circular protrusions of the present application may also be arranged in the following manner:
referring to fig. 8, the outer protrusions 10 are all arranged on the outer sleeve 2, and at least one outer protrusion 3 is arranged at the other end of the outer sleeve or at least one outer protrusion is arranged in the middle of the outer sleeve.
In this embodiment, the outer circular protrusions 10 are disposed on the inner sleeve 6, and at least one outer circular protrusion is disposed on the other end of the inner sleeve, and the axial position of the outer sleeve is located between the first connecting structure 3 and the outer circular protrusion on the other end.
Referring to fig. 10, in the present embodiment, the outer circular protrusions 10 are provided on the outer sleeve 2 as well as the inner sleeve 6, wherein the first connecting structure 3 is provided on the inner sleeve 6 or the outer sleeve 2; the excircle bulge is at least positioned at one or more of one end of the inner sleeve far away from the first excircle bulge, one end of the outer sleeve far away from the first connecting structure 3 and the middle part of the outer sleeve.
It is to be understood that fig. 8 to 10 are schematic views, and the oil inlet hole, the oil outlet hole, and other arrangements described above are omitted.
The utility model provides a wheel hub is provided with the excircle arch on wheel hub, sets up inlet port and oil outlet on the excircle arch, satisfies the user demand under the condition that does not increase whole wheel hub wall thickness, has avoided the problem of the equipment lectotype increase that leads to because of equipment aperture problem, has reduced user's use cost.
The application also provides a coupler, the coupler includes first wheel hub and second wheel hub, wherein, first wheel hub and/or second wheel hub be as above the coupler wheel hub that can install fast.
In this embodiment, the first hub includes a first flange, and the first flange is provided with a pin hole;
the second hub comprises a second flange, and a pin hole is formed in the second flange; wherein the content of the first and second substances,
at least two pin holes are conical holes;
if the tapered hole is positioned on the first flange, the tapered hole positioned on the first flange is matched with the pin hole positioned on the second flange except the tapered hole for use;
if the tapered hole is positioned on the second flange, the tapered hole positioned on the second flange is matched with the pin hole positioned on the first flange except the tapered hole for use;
when the first hub is assembled with the second hub, the matched pin holes on the first flange and the second flange are configured to be penetrated by the positioning pins, so that the positioning pins are acted by the inner walls of the pin holes in the process of entering the pin holes, and the central axes of the second hubs are guided to be coincident.
When the automatic centering shaft coupling of this application used, first flange and second flange pass through the bolt butt joint.
During the connection process, the first hub and the second hub may not be aligned, and at this time, the positioning pins sequentially pass through the pin holes and the pin holes which are conical, and the first hub and the second hub are gradually aligned during the connection process through the guidance of the inner walls of the pin holes.
In one embodiment, the first flange and the second flange are both flanges 3 as described above.
In this embodiment, the coupling further comprises: the shell, first wheel hub at least part set up in the shell, and the at least part of second wheel hub sets up in the shell, and inlet port, the oil outlet setting on the first wheel hub are located first wheel hub the part that is located the shell of part, the last inlet port of second wheel hub and oil outlet all set up at the second wheel hub.
According to the first hub and/or the second hub, the oil inlet hole and/or the oil outlet hole are/is formed in the shell, so that dust is prevented through the shell, and a dust cap does not need to be separately arranged on a one-way valve arranged on the oil inlet hole and the oil outlet hole; secondly, prior art sets up dustproof cap externally, still need consider dustproof cap and shell axial whether interfere, and the minimum wheel hub length that needs is great, and some industrial and mining can not satisfy, and the technical scheme of this application then need not consider the interference problem, and wheel hub's minimum length can further shorten.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a shaft coupling wheel hub that can install fast, its characterized in that, be provided with radial hole of hoist (9) on the shaft coupling wheel hub (1) that can install fast, the central axis of radial hole of hoist (9) passes through the focus of the shaft coupling wheel hub (1) that can install fast.
2. A coupling hub capable of being quickly mounted according to claim 1, characterized in that the inner wall of the coupling hub capable of being quickly mounted is provided with a key groove (11) recessed in the direction of the outer wall, and the radial hoisting holes (9) are communicated with the key groove (11).
3. A quick-fit coupling hub according to claim 1, characterized in that it comprises an outer sleeve (2) and an inner sleeve (6), an oil reservoir (7) being provided between the outer sleeve (2) and the inner sleeve (6);
be provided with inlet port (5) and oil outlet (12) on shaft coupling wheel hub's that can install fast overcoat (2), inlet port (5) with oil outlet (12) communicate respectively oil storage chamber (7).
4. A coupling hub capable of quick installation according to claim 3, characterized in that said radial lifting holes (9) are provided on said outer sleeve (2), said radial lifting holes being blind holes.
5. A quick-fit coupling hub according to claim 3 or 4, characterized in that a flange (3) is provided on the quick-fit coupling hub, said flange (3) being intended to be connected to other components.
6. A coupling hub according to claim 5, capable of being quickly mounted, wherein an outer boss (10) is provided on the outer sleeve, and the oil inlet (5) and the oil outlet (12) are provided on the outer boss (10).
7. A quick-fit coupling hub according to claim 6, characterized in that at least one outer circumferential projection (10) is provided at the end of the quick-fit coupling hub (1) remote from the flange; and/or the presence of a gas in the gas,
at least one excircle bulge (10) is arranged in the middle of the coupling hub (1) capable of being quickly installed.
8. A coupling comprising a first hub and a second hub, wherein the first hub and/or the second hub is a quick-mountable coupling hub according to any one of claims 1 to 7.
9. The coupling of claim 8 wherein said first hub includes a first flange having a pin bore disposed therein;
the second hub comprises a second flange, and a pin hole is formed in the second flange; wherein the content of the first and second substances,
at least two pin holes in the pin holes are conical holes;
if the tapered hole is positioned on the first flange, the tapered hole positioned on the first flange is matched with a pin hole positioned on the second flange except the tapered hole for use;
if the tapered hole is positioned on the second flange, the tapered hole positioned on the second flange is matched with the pin hole positioned on the first flange except the tapered hole for use;
when the first hub is assembled with the second hub, the paired pin holes on the first flange and the second flange are configured to be penetrated by the positioning pins, so that the positioning pins are acted by the inner walls of the pin holes during entering the pin holes, and the central axes of the second hubs are guided to be coincident.
10. The coupling of claim 9, wherein said coupling further comprises: the first wheel hub is at least partially arranged in the shell, the second wheel hub is at least partially arranged in the shell, the oil inlet hole and the oil outlet hole in the first wheel hub are formed in the portion, located in the shell, of the first wheel hub, and the oil inlet hole and the oil outlet hole in the second wheel hub are formed in the portion, located in the shell, of the second wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023092911.1U CN214837947U (en) | 2020-12-21 | 2020-12-21 | Coupler hub capable of being installed quickly and coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023092911.1U CN214837947U (en) | 2020-12-21 | 2020-12-21 | Coupler hub capable of being installed quickly and coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837947U true CN214837947U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023092911.1U Active CN214837947U (en) | 2020-12-21 | 2020-12-21 | Coupler hub capable of being installed quickly and coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837947U (en) |
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2020
- 2020-12-21 CN CN202023092911.1U patent/CN214837947U/en active Active
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