CN217234243U - Damping callus on sole and refrigeration plant - Google Patents
Damping callus on sole and refrigeration plant Download PDFInfo
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- CN217234243U CN217234243U CN202220567157.2U CN202220567157U CN217234243U CN 217234243 U CN217234243 U CN 217234243U CN 202220567157 U CN202220567157 U CN 202220567157U CN 217234243 U CN217234243 U CN 217234243U
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Abstract
This application belongs to damping technical field, especially relates to a damping callus on sole and refrigeration plant. Wherein, damping callus on sole includes: the supporting cylinder is provided with a first end and a second end opposite to the first end, and is provided with at least one first adjusting hole extending along the axial direction; the first outer ring periphery of the first vibration reduction annular wall is connected with the second end, 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 in the direction away from the first end, and the first vibration reduction annular wall has elasticity; the connecting body is connected to the periphery of the first inner ring of the first vibration reduction annular wall, and an annular groove for mounting feet of a vibration 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. Use the technical scheme of the utility model the problem that the poor noise that leads to of damping callus on the sole damping capacity who adopts among the current refrigeration plant exceeds standard has been solved.
Description
Technical Field
The application belongs to the technical field of damping, especially relates to a damping callus on sole and refrigeration plant.
Background
The compressor is the core component of the refrigerating system of the refrigerator and also the main vibration source of the refrigerating 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 producing the violent vibration of high frequency in compressor working process, 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 on vibration energy direct transmission was to the box of refrigerator, also can transmitted the pipeline of compressor, lead to noise and vibration to exceed standard, destroys the damping callus on the sole even when serious.
Moreover, the damping callus on the sole of prior art is fixed structure form, and the support rigidity of damping callus on the sole is fixed unchangeable, is unfavorable for the damping callus on the sole to carry out the adaptation to the pendulum of different weight, different vibration excitations.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a damping callus on sole and refrigeration plant, aim at solving the poor problem that leads to the noise to exceed standard of the damping callus on sole damping capacity who adopts among the current refrigeration plant, moreover, current damping callus on sole is unfavorable for carrying out the adaptation to different pendulum.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: a vibration-damping foot pad, comprising:
the supporting cylinder is provided with a first end used for being connected to a fixed mounting surface and a second end opposite to the first end, and at least one first adjusting hole is formed in the supporting cylinder and extends in the axial direction;
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 fixed mounting surface.
In one embodiment, the number of the first adjusting holes is multiple, and the multiple first adjusting holes are uniformly distributed along the circumferential direction.
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, at least one second adjusting hole is formed in the annular boss, and the second adjusting hole extends in the axial direction.
In one embodiment, the annular boss includes a first ring segment, a second ring segment and a third ring segment, one end of the first ring segment is connected with the inner side wall of the supporting cylinder, the other end of the first ring segment is connected to one end of the second ring segment, which is far away from the connecting body, the third ring segment is connected to one end of the second ring segment, which faces the connecting body, and the first ring segment and the third ring segment are respectively located on two opposite sides of the second ring segment.
In one embodiment, the number of the second adjusting holes is multiple, and the second adjusting holes are evenly distributed along the circumferential direction.
In one embodiment, the connecting body is provided with a limit ring table for limiting a foot of the vibrating body, the limit ring table is located between the annular groove and the first inner ring periphery, and a gap is formed between the limit ring table and the first inner ring periphery.
In one embodiment, an axial direction projected area of the limit ring table is smaller than an axial direction projected area of the first damping ring wall.
In one embodiment, the shock absorbing foot pad is an integrally molded component.
According to the utility model discloses another aspect of the embodiment provides a refrigeration plant. Specifically, the refrigeration equipment comprises a shell, a compressor and the damping foot pad, wherein the shell is provided with an installation space, the compressor is installed in the installation space, and the damping 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:
use the embodiment of the utility model provides a damping callus on the sole with the pendulum installation fixed on fixed mounting face, during the assembly, the footing cover of pendulum is in the annular of connector, then passes the perforating hole with the fastener and connect to fixed mounting face. 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 vibration body operates to generate vibration energy, the vibration energy is transmitted to the connecting body firstly and then transmitted to the first vibration reduction annular wall, and the first vibration reduction annular wall further generates elastic deformation under the action of the vibration energy, so that the vibration energy is converted into the deformation potential energy and the thermal internal energy of the first vibration reduction annular wall, the vibration energy is effectively reduced and transmitted to the fixed mounting surface, the fixed mounting surface is reduced from being excited by the vibration energy to generate noise, and the effects of noise elimination and noise reduction are achieved. And, the utility model discloses through set up first regulation hole on a support section of thick bamboo to adjust the support rigidity of a support section of thick bamboo, and, can alleviate the whole weight of adjusting the damping callus on the sole.
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 cross-sectional view of a vibration-damping foot pad according to a first embodiment of the present invention;
fig. 2 is a sectional structure view of a vibration-damping foot pad of the 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; 14. a first adjustment aperture;
20. a first damping ringwall; 21. a first inner annular periphery; 22. a first outer annular periphery;
30. a linker; 31. a ring groove; 32. a limit ring table;
81. an annular boss; 811. a first ring segment; 812. a second ring segment; 813. a third ring segment; 814. a second adjustment aperture;
100. a vibrating body.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function 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 foot pad.
The first embodiment is as follows:
the embodiment of the utility model provides a damping foot pad for with the installation of pendulum 100 fix on fixed mounting face (when pendulum 100 direct mount on ground, then fixed mounting face is ground; when pendulum 100 is installed on work platform, then fixed mounting face is work platform's mesa; when pendulum 100 is installed in equipment housing, then fixed mounting face is equipment housing's inside wall; etc.), and at the in-process that pendulum 100 carries out work, pendulum 100 produces the vibration, then the vibration transmits to the damping foot pad, the purpose of making an uproar falls in order to realize the damping through the vibration foot pad with the vibration mechanical energy conversion that pendulum 100 produced.
As shown in fig. 1, the damping foot pad of the first embodiment of the present invention includes a support tube 10, a first damping ring wall 20 and a connecting body 30, which form a core component of the damping foot pad. The support 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 support cylinder 10 is provided with at least one first adjusting hole 14 distributed circumferentially, in the first embodiment, the number of the first adjusting holes 14 is plural, each first adjusting hole 14 extends along an axial direction, each first adjusting hole 14 is uniformly distributed along a circumferential direction, the first damping ring wall 20 has a first inner ring circumferential edge 21 and a first outer ring circumferential edge 22 surrounding the first inner ring circumferential edge 21, the first outer ring circumferential edge 22 is connected to the second end 12, the wall surface of the first damping ring wall 20 is inclined from the first outer ring circumferential edge 22 to the first inner ring circumferential edge 21 in a direction away from the first end 11, the first damping ring wall 20 has elasticity, and the first damping ring wall 20 is a flexible body with elasticity, the connecting body 30 is connected to the first inner ring periphery 21, the connecting body 30 is provided with a ring groove 31 for mounting feet of the vibrating body 100, wherein the supporting cylinder 10, the first damping ring wall 20 and the connecting body 30 are provided with a through hole 1 which penetrates in the axial direction, and the through hole 1 is used for penetrating a fastener (preferably, the fastener is a bolt, and the following description is given by using a bolt) for fixing the feet of the vibrating body 100 to the fixing and mounting surface.
Use the embodiment of the utility model provides a damping callus on the sole fixes the installation of pendulum 100 on fixed mounting face, and during the assembly, the footing cover of pendulum 100 is in the annular 31 of connector 30, then passes perforating hole 1 with the bolt and is connected to fixed mounting face. 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 the 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 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 vibration 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 transmission of the vibration energy to the fixed installation surface is effectively reduced, the generation of noise caused by the vibration of the fixed installation surface under the excitation of the vibration energy is reduced, and the effects of noise elimination and reduction are realized. Furthermore, the utility model discloses through set up first regulation hole 14 on a support section of thick bamboo 10 to adjust the support rigidity of a support section of thick bamboo 10, and, can alleviate the whole weight of adjusting the damping callus on the sole.
When different vibrators 100 are selected for operation (for example, the weights of the vibrators 100 are different, the vibration excitation powers of the vibrators 100 are different, and the like), different numbers of first adjusting holes 14 may be formed in the supporting cylinder 10 in a targeted manner, or the first adjusting holes 14 with different apertures may be formed in the supporting cylinder 10 in a targeted manner, so that the vibrators 100 are mounted in a targeted manner.
Specifically, the utility model provides a damping callus on sole adopts rubber material integrated into one piece to be holistic flexible component, that is, the damping callus on sole is whole homoenergetic to take place elastic deformation (damping callus on the sole has elasticity promptly), for example, the spacing ring platform 32 that carries out the support to the footing of pendulum 100 also can take place elastic deformation thereupon under the excitation of the vibrational energy that pendulum 100 produced, spacing ring platform 32 also converts the vibrational energy of part into deformation potential energy and hot internal energy promptly to supplementary realization is eliminated the noise and is fallen the mesh of making an uproar.
As shown in fig. 1, the connecting body 30 is provided with a limit ring stand 32, the limit ring stand 32 is located between the ring groove 31 and the first damping ring wall 20, a gap is provided between the limit ring stand 32 and the first damping ring wall 20, and the limit ring stand 32 is configured to abut against a foot of the vibrating body 100, that is, the limit ring stand 32 supports the foot of the vibrating body 100.
In the damping foot pad according to the first embodiment, the axial direction projected area of the limit ring table 32 is smaller than the axial direction projected area of the first damping ring wall 20. Like this, when first damping rampart 20 sinks along axial direction and warp to the limit, then spacing ring platform 32 supports and connects to on the wall of first damping rampart 20, because spacing ring platform 32 is the flexible component that can elastic deformation with first damping rampart 20, consequently, spacing ring platform 32 can avoid the direct wall that supports first damping rampart 20 of footing of rigid pendulum 100, thereby avoid causing first damping rampart 20 to suffer damage, can guarantee the completeness of first damping rampart 20, and like this, first damping rampart 20 just can resume normal damping ability after the vibration excitation of pendulum 100 cancels or reduces. Moreover, the maximum stroke of the connecting body 30 in the axial direction can be limited by matching the limit ring table 32 with the first vibration reduction ring wall 20, that is, the maximum stroke of the connecting body 30 in the axial direction in the vibration reduction is smaller than the height of the support cylinder 10, so that when the connecting body 30 is vibrated to sink to the limit position under the excitation of the vibration energy of the vibrating body 100, the limit ring table 32 abuts against the wall surface of the first vibration reduction ring wall 20, so that the connecting body 30 cannot directly abut against the fixed mounting surface, the vibration energy cannot be transmitted to the fixed mounting surface, and the wall surface excites the fixed mounting surface to generate noise by the vibration energy.
Specifically, in order to enhance the mechanical strength of the support cylinder 10, that is, the support rigidity of the support cylinder 10 for the vibration body 100, at least one annular boss 81 circumferentially disposed on the inner sidewall and/or the outer sidewall of the support cylinder 10 is provided on the support cylinder 10. The utility model discloses in the damping callus on sole of embodiment one, the quantity of annular boss 81 is one, this annular boss 81 sets up on the inside wall of a support section of thick bamboo 10 preferably (as shown in fig. 1), and this annular boss 81 deviates from the terminal surface parallel and level of the side end face of connector 30 and first end 11, annular boss 81 deviates from the terminal surface butt fixed mounting face simultaneously of the side end face of connector 30 and first end 11, the area of contact between damping callus on the sole and the fixed mounting face has been increased, make the damping callus on the sole can be more stable install on fixed mounting face.
As shown in fig. 1, at least one second adjusting hole 814 is circumferentially distributed on the annular boss 81, a plurality of second adjusting holes 814 are formed on the annular boss 81 of the damping foot pad of the first embodiment, and each second adjusting hole 814 extends in the axial direction. The respective second regulation holes 814 are uniformly distributed in the circumferential direction. The second adjusting holes 814 are formed in the annular boss 81 to adjust the rigidity of the annular boss 81, so that the rigidity of the annular boss 81 can be more matched with the supporting rigidity of the supporting cylinder 10, and the second adjusting holes 814 and the first adjusting holes 14 together reduce the overall weight of the adjustable damping foot pad.
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 oscillating body 100 is operated to generate vibration energy excitation, the bolt can be damped and displaced in the gap between the bolt and the hole wall of the through hole 1 during the vibration displacement of the oscillating body 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.
Example two:
as shown in fig. 2, it shows the structure of the damping foot pad provided by the 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 reducing foot pad according to 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, 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 the case where the weight of the annular boss 81 is further reduced), the rigidity of the annular boss 81 itself can be further improved, thereby assisting in adjusting the support rigidity of the support tube 10.
Furthermore, the first ring segment 811 of the annular boss 81 is provided with second adjusting holes 814 distributed circumferentially, and each of the second adjusting holes 814 extends in the axial direction. In addition, a plurality of second adjusting holes 814 distributed in the circumferential direction may also be provided in the second ring segment 812 and/or the third ring segment 813.
Compared with the vibration-damping foot pad of the first embodiment, the vibration-damping foot pad of the second embodiment has the same structure except for the above structure, and thus is not described herein again.
According to another aspect of the embodiments of the present invention, there is provided a refrigeration device (not shown), in the embodiments of the present invention, the refrigeration device may be a refrigerator, an air conditioner, or the like. Specifically, the refrigeration 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.
Use the embodiment of the utility model provides a damping callus on sole fixes the compressor installation in the casing, during the assembly, the footing cover of compressor is in the annular 31 of connector 30 to stop collar platform 32 supports the footing of living the compressor, then passes perforating hole 1 with the bolt and is connected to the casing. After the assembly is completed, since the wall surface of the first damping ring wall 20 is inclined from the first outer circumferential edge 22 to the first inner circumferential edge 21 in a direction away from the first end 11, and the first damping ring wall 20 has elasticity, the first damping ring wall 20 is elastically deformed in the axial direction to sink under the gravity of the vibration body 100, so that the vibration 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 of 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 heat internal energy of the first vibration reduction annular wall 20, the transmission of the vibration energy to the fixed mounting surface is effectively reduced, 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:
the supporting cylinder is provided with a first end used for being connected to a fixed mounting surface and a second end opposite to the first end, and at least one first adjusting hole is formed in the supporting cylinder and extends in the axial direction;
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 fixed mounting surface.
2. The vibration dampening foot pad of claim 1,
the quantity of first regulation hole is a plurality of, and is a plurality of first regulation hole is along circumference evenly distributed.
3. 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.
4. The vibration dampening shoe insert of claim 3,
at least one second adjusting hole is formed in the annular boss and extends in the axial direction.
5. The vibration dampening shoe insert of claim 4,
the annular boss comprises a first ring segment, a second ring segment and a third ring segment, one end of the first ring segment is connected with the inner side wall of the supporting cylinder, the other end of the first ring segment is connected with one end, away from the connecting body, of the second ring segment, the third ring segment is connected with one end, facing towards the connecting body, of the second ring segment, and the first ring segment and the third ring segment are located on two opposite sides of the second ring segment respectively.
6. The vibration-damping foot pad of claim 5,
the quantity of second regulation hole is a plurality of, and is a plurality of second regulation hole is along circumference evenly distributed.
7. The vibration dampening foot pad of any one of claims 2-6,
the connecting body is provided with a limit ring table used for limiting the bottom feet of the vibrating body, the limit ring table is positioned between the annular groove and the periphery of the first inner ring, and an interval is reserved between the limit ring table and the periphery of the first inner ring.
8. The vibration dampening foot pad of claim 7,
the axial direction projection area of the limiting ring table is smaller than that of the first vibration reduction ring wall.
9. The vibration dampening foot pad of claim 7,
the vibration reduction foot pad is an integrally formed component.
10. A refrigeration appliance comprising a housing, a compressor and a vibration-damping foot pad as claimed in any one of claims 1 to 9, said housing being provided with an installation space in which the compressor is installed, and said vibration-damping foot pad being provided between a foot of the compressor and said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220567157.2U CN217234243U (en) | 2022-03-15 | 2022-03-15 | Damping callus on sole and refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220567157.2U CN217234243U (en) | 2022-03-15 | 2022-03-15 | Damping callus on sole and refrigeration plant |
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| Publication Number | Publication Date |
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| CN217234243U true CN217234243U (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220567157.2U Active CN217234243U (en) | 2022-03-15 | 2022-03-15 | Damping callus on sole and refrigeration plant |
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- 2022-03-15 CN CN202220567157.2U patent/CN217234243U/en active Active
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