CN216812072U - Damping callus on sole and temperature control equipment - Google Patents
Damping callus on sole and temperature control equipment Download PDFInfo
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- CN216812072U CN216812072U CN202220567205.8U CN202220567205U CN216812072U CN 216812072 U CN216812072 U CN 216812072U CN 202220567205 U CN202220567205 U CN 202220567205U CN 216812072 U CN216812072 U CN 216812072U
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Abstract
The application belongs to the technical field of damping, especially relates to a damping callus on sole and temperature control equipment. Wherein, damping callus on sole includes: a support cylinder having a first end and a second end opposite the first end; the first vibration reduction annular wall is provided with a first inner annular periphery and a first outer annular periphery surrounding the first inner annular periphery, the first outer annular periphery is connected with the second end, the wall surface of the first vibration reduction annular wall is obliquely arranged from the first outer annular periphery to the first inner annular periphery in the direction far away from the first end, and the first vibration reduction annular wall can have elasticity; the connecting body is connected to the periphery of the first inner ring, and an annular groove for mounting feet of the vibrating body is formed in the connecting body; wherein, the supporting cylinder, the first vibration reduction annular wall and the connecting body are provided with through holes which are penetrated in the axial direction. The technical scheme of the utility model solves the problem that the noise exceeds the standard due to poor vibration reduction capability of the vibration reduction foot pad adopted in the existing temperature control equipment.
Description
Technical Field
The application belongs to the technical field of damping, especially relates to a damping callus on sole and temperature control equipment.
Background
The compressor is the core component of the refrigeration system of the refrigerator and is also the main vibration source of the refrigeration system.
In order to attenuate the vibration energy generated by the compressor, the existing vibration attenuation for the compressor in the refrigerator mainly realizes the circumferential weak constraint and the axial weak constraint of the compressor by the vibration attenuation foot pads, so that the vibration energy generated by the compressor is attenuated.
However, since the lower half structure of the vibration-damping foot pad of the prior art is less compressible in the circumferential direction and the axial direction, the degree of vibration energy attenuation in the circumferential direction and the axial direction of the compressor is limited, and the vibration during actual operation is still large. When the compressor produces the violent vibration of high frequency in the course of the work, the compressor can produce comparatively violent vibration excitation, and the damping callus on the sole is compressed to the limit (the damping callus on the sole is died) under the effect of axial direction power and tangential force, and the pipeline of compressor also can be transmitted to on the box of vibration energy direct transmission refrigerator, leads to noise and vibration to exceed standard, destroys the damping callus on the sole even when serious.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a damping callus on sole and temperature control equipment, aims at solving the problem that the damping callus on sole damping energy difference that the compressor adopted leads to the noise to exceed standard among the current temperature control equipment.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: a vibration-damping foot pad, comprising:
a support cylinder having a first end for connection to a mounting fixture and a second end opposite the first end;
the first damping ring wall is provided with a first inner ring periphery and a first outer ring periphery surrounding the first inner ring periphery, the first outer ring periphery is connected with the second end, the wall surface of the first damping ring wall is obliquely arranged from the first outer ring periphery to the first inner ring periphery in the direction away from the first end, and the first damping ring wall has elasticity;
the connecting body is connected to the periphery of the first inner ring, and an annular groove for mounting feet of the vibrating body is formed in the connecting body;
the supporting cylinder, the first vibration reduction annular wall and the connecting body are provided with through holes which penetrate through in the axial direction, and the through holes are used for penetrating through fasteners which are used for fixing feet of the vibration body to the mounting and fixing surface.
In one embodiment, the support cylinder is provided with at least one annular boss, and the annular boss is circumferentially arranged on the inner side wall and/or the outer side wall of the support cylinder.
In one embodiment, an annular boss is arranged on the support cylinder, the annular boss is circumferentially arranged on the inner side wall of the support cylinder, and the end face of the annular boss, which is away from the connecting body, is flush with the end face of the first end.
In one embodiment, the annular boss includes a first ring segment, a second ring segment and a third ring segment, the first ring segment is connected to one end of the second ring segment, which is away from the connector, the third ring segment is connected to one end of the second ring segment, which is toward the connector, the first ring segment and the third ring segment are respectively located at two sides of the second ring segment, the first ring segment is connected with the inner side wall of the supporting cylinder, and the side surface of the first ring segment, which is away from the connector, is flush with the end surface of the first end.
In one embodiment, the inner side wall of the supporting cylinder is provided with at least one annular adjusting groove arranged along the circumferential direction.
In one embodiment, the cross-sectional profile of the annular adjustment groove has a diameter d1The support cylinder corresponds to the through holeDiameter of the through hole is D1The diameter of the excircle profile of the cross section of the supporting cylinder is D2Then 0 < d1＜D2-D1。
In one embodiment, the shock absorbing foot pad is an integrally molded component.
In one embodiment, the shock absorbing foot pad is a flexible member made of any one of rubber, nylon, or epoxy.
In one embodiment, the shock absorbing foot pad further comprises a protective bushing disposed in the through hole, the protective bushing configured to pass the fastener.
According to another aspect of an embodiment of the present invention, there is provided a temperature control device. Specifically, the temperature control device comprises a shell, a compressor and the vibration reduction foot pad, wherein the shell is provided with an installation space, the compressor is installed in the installation space, and the vibration reduction foot pad is arranged between a foot of the compressor and the shell.
The embodiment of the application has at least the following beneficial effects:
the vibration reduction foot pad provided by the embodiment of the utility model is used for installing and fixing the vibrating body on the fixed installation surface, when the vibration reduction foot pad is assembled, the foot of the vibrating body is sleeved in the annular groove of the connecting body, and then the fastening piece penetrates through the through hole and is connected to the fixed installation surface. After the assembly is completed, the wall surface of the first vibration reduction annular wall is obliquely arranged from the first outer ring periphery to the first inner ring periphery towards the direction far away from the first end, and the first vibration reduction annular wall can generate elastic deformation in the axial direction, so that under the action of the gravity of the vibrating body, the first vibration reduction annular wall generates elastic deformation in the axial direction and sinks, and the vibrating body can be fixedly connected to the fixed mounting surface in a balanced manner. In the process that the vibrating body operates to generate vibration energy, the vibration energy is firstly transmitted to the connecting body and then transmitted to the first vibration reduction annular wall, and the first vibration reduction annular wall is further elastically deformed under the action of the vibration energy so as to convert the vibration energy into the deformation potential energy and the thermal internal energy of the first vibration reduction annular wall.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a sectional view of a shock absorbing foot pad according to a first embodiment of the present invention;
FIG. 2 is a sectional view of a vibration-damping foot pad according to a second embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. a through hole;
10. a support cylinder; 11. a first end; 12. a second end; 13. an annular adjustment groove;
20. a first damping ringwall; 21. a first inner ring periphery; 22. a first outer ring periphery;
30. a linker; 31. a ring groove;
81. an annular boss; 811. a first ring segment; 812. a second ring segment; 813. a third ring segment;
90. a protective bushing;
100. a vibrating body.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present application embodiments and are not to be construed as limiting the present application embodiments.
In the description of the embodiments of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations and positional relationships illustrated in the drawings, which are used for convenience in describing the embodiments of the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the embodiments of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the embodiments of the present application, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
Defining: the axial direction is the direction of a plumb line and is also the axial direction of the vibration reduction foot pad; the circumferential direction is a circumferential direction around the axial direction of the vibration-damping footpad.
The first embodiment is as follows:
the embodiment of the utility model provides a vibration reduction foot pad which is used for installing and fixing a vibrating body 100 on a fixed installation surface (when the vibrating body 100 is directly installed on the ground, the fixed installation surface is the ground, when the vibrating body 100 is installed on a working platform, the fixed installation surface is a table surface of the working platform, when the vibrating body 100 is installed in an equipment shell, the fixed installation surface is an inner side wall of the equipment shell, and the like), and in the working process of the vibrating body 100, the vibrating body 100 generates vibration, and then the vibration is transmitted to the vibration foot pad, and the mechanical energy of the vibration generated by the vibrating body 100 is converted through the vibration foot pad so as to achieve the purposes of vibration reduction and noise reduction.
As shown in fig. 1, the damping foot pad according to the first embodiment of the present invention includes a support cylinder 10, a first damping annular wall 20, and a connecting body 30, which form a core component of the damping foot pad. The supporting cylinder 10 has a first end 11 for connecting to a fixed mounting surface and a second end 12 opposite to the first end 11, the first vibration-damping annular wall 20 has a first inner annular periphery 21 and a first outer annular periphery 22 surrounding the first inner annular periphery 21, the first outer annular periphery 22 is connected to the second end 12, the wall surface of the first vibration-damping annular wall 20 is inclined from the first outer annular periphery 22 to the first inner annular periphery 21 in the direction away from the first end 11, the first vibration-damping annular wall 20 can generate elastic deformation (i.e. the first vibration-damping annular wall 20 has elasticity), the first vibration-damping annular wall 20 is a flexible body capable of generating elastic deformation, the connecting body 30 is connected to the first inner annular periphery 21, an annular groove 31 for installing a foot of the vibration body 100 is formed on the connecting body 30, wherein the supporting cylinder 10, The first damper ring wall 20 and the connecting body 30 are provided with through holes 1 that penetrate in the axial direction, and the through holes 1 are used for inserting fasteners (preferably, bolts) that fix the feet of the vibrator 100 to the fixed attachment surface.
When the vibration reduction foot pad provided by the embodiment of the utility model is used for installing and fixing the vibrating body 100 on the fixed installation surface, the foot of the vibrating body 100 is sleeved in the annular groove 31 of the connecting body 30 during assembly, and then the bolt penetrates through the through hole 1 and is connected to the fixed installation surface. After the assembly is completed, since the wall surface of the first damping ring wall 20 is inclined from the first outer ring peripheral edge 22 to the first inner ring peripheral edge 21 in a direction away from the first end 11, and the first damping ring wall 20 can be elastically deformed in the axial direction, the first damping ring wall 20 is elastically deformed in the axial direction and sinks under the gravity of the vibrating body 100, so that the vibrating body 100 can be fixedly attached to the fixing attachment surface in a balanced manner. In the process that the vibrating body 100 operates to generate vibration energy, the vibration energy is firstly transmitted to the connecting body 30 and then transmitted to the first vibration reduction annular wall 20, and the first vibration reduction annular wall 20 further generates elastic deformation under the action of the vibration energy (at this time, the first vibration reduction annular wall 20 generates complex deformation with multiple degrees of freedom in the axial direction, the circumferential direction and the radial direction under the excitation of the vibration energy), so that the vibration energy is converted into deformation potential energy and thermal internal energy of the first vibration reduction annular wall 20, and thus, the vibration energy cannot be transmitted to the fixed mounting surface, the noise generated by the vibration of the fixed mounting surface under the excitation of the vibration energy is reduced, and the effects of noise elimination and noise reduction are realized.
Specifically, in order to enhance the mechanical strength of the supporting cylinder 10, that is, the supporting rigidity of the supporting cylinder 10 for the vibrating body 100, at least one annular boss 81 circumferentially disposed on the inner sidewall and/or the outer sidewall of the supporting cylinder 10 is disposed on the supporting cylinder 10.
In the damping foot pad according to the first embodiment of the utility model, the number of the annular bosses 81 is one, the annular bosses 81 are preferably arranged on the inner side wall of the support cylinder 10 (as shown in fig. 1), the side end faces of the annular bosses 81, which face away from the connecting body 30, are flush with the end faces of the first ends 11, and the side end faces of the annular bosses 81, which face away from the connecting body 30, and the end faces of the first ends 11 abut against the fixing and mounting surface at the same time, so that the contact area between the damping foot pad and the fixing and mounting surface is increased, and the damping foot pad can be more stably mounted on the fixing and mounting surface.
At least one annular adjusting groove 13 arranged along the circumferential direction is arranged on the inner side wall and/or the outer side wall of the supporting cylinder 10. In the first embodiment, the number of the annular adjusting grooves 13 is one, and the annular adjusting grooves are formed in the inner side wall of the support cylinder 10. The annular adjusting groove 13 is formed in the supporting cylinder 10, so that the supporting rigidity of the supporting cylinder 10 is further adjusted, and meanwhile, the whole weight of the adjustable damping foot pad can be reduced.
As shown in FIG. 1, the cross-sectional profile of the annular adjustment groove 13 has a diameter d1The diameter of the through hole 1 corresponding to the supporting cylinder 10 is D1What is, what isThe diameter of the excircle outline of the cross section of the support cylinder 10 is D2Then 0 < d1＜D2-D1Therefore, on the basis that the supporting cylinder 10 is guaranteed to have enough supporting rigidity, the whole weight of the damping foot pad can be further reduced, and the material consumption of the damping foot pad is saved.
Specifically, the vibration reduction foot pad provided by the embodiment of the utility model is a flexible member integrally formed by rubber, that is, the vibration reduction foot pad can be elastically deformed integrally, and partial vibration energy is converted into deformation potential energy and thermal internal energy, so that the aims of noise elimination and noise reduction are achieved in an auxiliary manner. In addition, the vibration reduction foot pad of the first embodiment of the utility model can also be integrally formed into an integral flexible component by adopting a nylon material, or integrally formed into an integral flexible component by adopting an epoxy resin material.
In the vibration damping foot pad according to the first embodiment, the bolt inserted through the through hole 1 has a clearance with at least a part of the hole wall of the through hole 1, that is, the bolt is in clearance fit with the through hole 1. In this way, when the vibrator 100 is operated to generate vibration energy for excitation, the bolt can be subjected to damping displacement in the gap between the bolt and the hole wall of the through hole 1 during vibration displacement of the vibrator 100 in the circumferential direction and the radial direction, and then the bolt transmits the vibration energy to the connecting body 30 in the circumferential direction and the radial direction.
As shown in fig. 1, the vibration-damping foot pad further includes a protective bushing 90, the protective bushing 90 is disposed in the through hole 1, and the protective bushing 90 is used for inserting the bolt. So, separate through protection bush 90 between bolt and the damping callus on the sole for the thread tooth of bolt not direct contact perforating hole 1's pore wall, like this, when vibrating body 100 operation produced vibration energy, avoid the hole wall of bolt rigidity butt perforating hole 1, thereby protected the damping callus on the sole can not be damaged by the thread tooth of bolt, can further prolong the life of damping callus on the sole.
When assembled, the outer circumferential wall of the protective bush 90 has a clearance with at least part of the bore wall of the through bore 1, i.e. there is a clearance fit between the protective bush 90 and the through bore 1. In this way, when the oscillating body 100 is excited by vibration energy generated during operation, the bolt can be displaced in a manner to absorb vibration in the gap between the protective bush 90 and the hole wall of the through hole 1 during the circumferential and radial vibrational displacements of the oscillating body 100, and then the bolt transmits the vibration energy to the connecting body 30 in the circumferential and radial directions.
Or, during assembly, the circumferential outer wall of the protection bushing 90 is in interference fit or transition fit with at least part of the hole wall of the through hole 1, and a gap is formed between the bolt penetrating through the protection bushing 90 and the hole wall of the through hole of the protection bushing 90, that is, the bolt is in clearance fit with the protection bushing 90. In this way, when vibration energy is excited by operation of vibration body 100, the bolt can be displaced in a damping manner in the gap between the bolt and protective bush 90 during the vibration displacement of vibration body 100 in the circumferential direction as well as in the radial direction, and then the bolt transmits the vibration energy to connecting body 30 in the circumferential direction as well as in the radial direction.
Further alternatively, during assembly, a gap is provided between the circumferential outer wall of the protection bush 90 and at least a part of the hole wall of the through hole 1, and a gap is provided between the bolt inserted through the protection bush 90 and the hole wall of the through hole of the protection bush 90, that is: the protective bush 90 is in clearance fit with the through hole 1, and the bolt is in clearance fit with the protective bush 90. In this way, when vibration energy is excited by operation of vibration body 100, the bolt can undergo damping displacement in the gap between the bolt and protective bush 90 and the gap between protective bush 90 and the hole wall of through-hole 1 during vibration displacement of vibration body 100 in the circumferential direction and the radial direction, and then the bolt transmits the vibration energy to connecting body 30 in the circumferential direction and the radial direction.
Specifically, the protective bush 90 may be a flexible member molded by using a rubber material, or may be a rigid member molded by using a rigid material. Also, the protective sleeve 90 is preferably a sleeve whose circumferential outer wall is a cylindrical surface.
The second embodiment:
fig. 2 shows a structure of a vibration-damping foot pad according to a second embodiment of the present invention. The vibration-damping foot pad of the second embodiment has the following differences compared to the vibration-damping foot pad of the first embodiment.
In the vibration reduction foot pad of the second embodiment, the annular boss 81 includes a first ring segment 811, a second ring segment 812 and a third ring segment 813, the first ring segment 811 is connected to an end of the second ring segment 812 facing away from the connecting body 30, the third ring segment 813 is connected to an end of the second ring segment 812 facing toward the connecting body 30, the first ring segment 811 and the third ring segment 813 are respectively located on two sides of the second ring segment 812, and the first ring segment 811 is connected to an inner side wall of the supporting cylinder 10. That is, the cross-sectional profile shape of the annular boss 81 of the second embodiment is a "Z" shape (as shown in fig. 2), so that even in the case where the overall weight of the vibration-damping foot pad of the second embodiment is the same as or slightly smaller than that of the vibration-damping foot pad of the second embodiment (the overall weight of the vibration-damping foot pad is slightly smaller mainly in further reducing the weight of the annular boss 81), the rigidity of the annular boss 81 itself can be further improved, thereby assisting in adjusting the support rigidity of the support cylinder 10.
Compared with the damping foot pad of the first embodiment, the damping foot pad of the second embodiment has the same structure except for the difference of the above structures, and thus the description thereof is omitted.
According to another aspect of an embodiment of the present invention, there is provided a temperature control device (not shown), in an embodiment of the present invention, the temperature control device may be a refrigerator, an air conditioner, or the like. Specifically, the temperature control device includes a housing, a compressor, and the aforementioned vibration-damping foot pad, that is, the compressor is the aforementioned vibrating body 100, and the housing is the aforementioned fixed mounting surface. The casing is equipped with installation space, and the compressor is installed in installation space, and, be provided with between the footing of compressor and the casing damping callus on the sole.
The compressor is installed and fixed in the shell by applying the vibration reduction foot pad provided by the embodiment of the utility model, when the compressor is assembled, the foot of the compressor is sleeved in the annular groove 31 of the connecting body 30, and then the bolt passes through the through hole 1 and is connected to the shell. After the assembly is completed, since the wall surface of the first damping ring wall 20 is inclined from the first outer ring peripheral edge 22 to the first inner ring peripheral edge 21 in a direction away from the first end 11, and the first damping ring wall 20 can be elastically deformed, the first damping ring wall 20 is elastically deformed in the axial direction to sink under the action of the gravity of the vibrating body 100, so that the vibrating body 100 can be fixedly attached to the fixed attachment surface in a balanced manner. In the process that the vibrating body 100 operates to generate vibration energy, the vibration energy is firstly transmitted to the connecting body 30 and then transmitted to the first vibration reduction annular wall 20, and the first vibration reduction annular wall 20 further generates elastic deformation under the action of the vibration energy (at this time, the first vibration reduction annular wall 20 generates complex deformation with multiple degrees of freedom in the axial direction, the circumferential direction and the radial direction under the excitation of the vibration energy), so that the vibration energy is converted into deformation potential energy and thermal internal energy of the first vibration reduction annular wall 20, and thus, the vibration energy cannot be transmitted to the fixed mounting surface, the noise generated by the vibration of the fixed mounting surface under the excitation of the vibration energy is reduced, and the effects of noise elimination and noise reduction are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not intended to limit the present application, and any modifications, equivalents and improvements made within the spirit and principle of the embodiments of the present application should be included in the scope of the present application.
Claims (10)
1. The utility model provides a damping callus on sole, its characterized in that, the damping callus on sole includes:
a support cylinder having a first end for connection to a mounting fixture and a second end opposite the first end;
the first damping ring wall is provided with a first inner ring periphery and a first outer ring periphery surrounding the first inner ring periphery, the first outer ring periphery is connected with the second end, the wall surface of the first damping ring wall is obliquely arranged from the first outer ring periphery to the first inner ring periphery in the direction away from the first end, and the first damping ring wall has elasticity;
the connecting body is connected to the periphery of the first inner ring, and an annular groove for mounting feet of the vibrating body is formed in the connecting body;
the supporting cylinder, the first vibration reduction annular wall and the connecting body are provided with through holes which penetrate through in the axial direction, and the through holes are used for penetrating through fasteners for fixing feet of the vibration body to the mounting and fixing surface.
2. The vibration dampening foot pad of claim 1,
the supporting cylinder is provided with at least one annular boss, and the annular boss is arranged on the inner side wall and/or the outer side wall of the supporting cylinder along the circumferential direction.
3. The vibration dampening foot pad of claim 1,
the supporting cylinder is provided with an annular boss, the annular boss is arranged on the inner side wall of the supporting cylinder along the circumferential direction, and the end face of the annular boss, which deviates from the connecting body, is flush with the end face of the first end.
4. The vibration dampening shoe insert of claim 3,
the annular boss comprises a first ring segment, a second ring segment and a third ring segment, the first ring segment is connected to one end, deviating from the connector, of the second ring segment, the third ring segment is connected to one end, facing towards the connector, of the second ring segment, the first ring segment and the third ring segment are respectively located on two sides of the second ring segment, the first ring segment is connected with the inner side wall of the supporting cylinder, and the side face, deviating from the connector, of the first ring segment is flush with the end face of the first end.
5. The vibration dampening shoe insert of claim 3,
the inner side wall of the supporting cylinder is provided with at least one annular adjusting groove arranged along the circumferential direction.
6. The vibration dampening foot pad of claim 5,
the cross-sectional profile of the annular adjustment groove is straightDiameter d1The diameter of the through hole corresponding to the supporting cylinder is D1The diameter of the excircle profile of the cross section of the supporting cylinder is D2Then 0 < d1＜D2-D1。
7. The vibration dampening foot pad of any one of claims 1-6,
the vibration reduction foot pad is an integrally formed component.
8. The vibration dampening foot pad of claim 7,
the vibration reduction foot pad is a flexible part made of any one of rubber, nylon or epoxy resin.
9. The vibration dampening foot pad of claim 1,
the damping callus on sole still includes the protection bush, the protection bush set up in the perforating hole, the protection bush is used for wearing to establish the fastener.
10. A temperature control apparatus comprising a housing, a compressor, and a vibration-damping foot pad as set forth in any one of claims 1 to 9, the housing being provided with an installation space in which the compressor is installed, and the vibration-damping foot pad being provided between a foot of the compressor and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220567205.8U CN216812072U (en) | 2022-03-15 | 2022-03-15 | Damping callus on sole and temperature control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220567205.8U CN216812072U (en) | 2022-03-15 | 2022-03-15 | Damping callus on sole and temperature control equipment |
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| Publication Number | Publication Date |
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| CN216812072U true CN216812072U (en) | 2022-06-24 |
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| CN202220567205.8U Active CN216812072U (en) | 2022-03-15 | 2022-03-15 | Damping callus on sole and temperature control equipment |
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| Country | Link |
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| CN (1) | CN216812072U (en) |
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