CN211477188U - Sealing structure of closed angle encoder shell - Google Patents
Sealing structure of closed angle encoder shell Download PDFInfo
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- CN211477188U CN211477188U CN202020116453.1U CN202020116453U CN211477188U CN 211477188 U CN211477188 U CN 211477188U CN 202020116453 U CN202020116453 U CN 202020116453U CN 211477188 U CN211477188 U CN 211477188U
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Abstract
The utility model discloses a sealing structure of a closed angle encoder shell, which comprises an encoder upper cover, an encoder lower cover, a sealing ring, a mirror ring and an encoder rotating shaft; the upper encoder cover and the lower encoder cover are fixedly installed inwards respectively to form side sealing, annular grooves are formed in the inner side end faces of the upper encoder cover and the lower encoder cover respectively, the end mirror surface rings are arranged in the annular grooves of the upper cover and the lower cover respectively, the rotating shaft of the encoder is located at the position of the middle shaft of the upper cover and the lower cover of the angle encoder shell, and the upper end and the lower end of the rotating shaft are of a two-stage cylindrical structure to form an annular step; the sealing rings are respectively arranged on steps at the upper end and the lower end of the rotating shaft of the encoder, and the edges of the sealing rings respectively support the mirror surface rings arranged in the annular grooves of the upper cover and the lower cover of the encoder shell to form end face sealing during assembly. The utility model discloses can provide good sealing performance, make things convenient for the encoder shell to dismantle simultaneously and maintain, can also effectively reduce the friction between sealing washer and the shell, promote the high-speed performance of encoder.
Description
Technical Field
The utility model relates to a sensor field that numerical control was equipped, concretely relates to seal structure of closed angle encoder shell.
Background
The angle encoder is a key position sensor of numerical control equipment such as robots and high-grade machine tools, and is particularly applied to the field of high-grade numerical control machines. The measuring principle is that relative rotation angle between an encoder rotating shaft rigidly and coaxially fixed on a rotating part of a measured rotating shaft and an encoder shell fixed on a fixed part of the measured rotating shaft is measured by photoelectric, magnetic, inductance and other technical means. Because digit control machine tool is adding man-hour, has oil-water mixture such as a large amount of cuttings liquid in the environment, and cutting piece and dust, consequently need do sealed processing to the angle encoder shell, just can guarantee that the inside components and parts of angle encoder normally work. The existing closed angle encoder shell seal generally adopts the following scheme: set up one or two annular grooves at encoder shell fixed part's outside terminal surface, rubber seal installs on the encoder axis of rotation, and the annular groove on the shell is covered from the outside to the rubber seal outer fringe to support annular groove and produce a certain amount of elastic deformation, form end face seal to the encoder like this, prevent that external pollution from getting into inside the encoder. Because this kind of mode is after installing the encoder shell, again with rubber seal install on the axis of rotation, then cover on the annular groove of shell from the outside, this results in when needing to adjust shell and inside components and parts in the production test process, or when needing to overhaul the encoder in the use, rubber seal becomes the hindrance in order to remove the encoder shell, damages rubber seal very easily in the shell dismantlement in-process. Meanwhile, the annular groove on the encoder shell has limited processing precision and a rough surface. Although the lubricating grease can be used for lubricating, when the encoder rotates at a high speed, the rubber sealing ring is easy to rub against the annular groove on the encoder shell to be damaged, and the sealing performance of the encoder is reduced to influence the measurement. Therefore, this sealing method usually imposes a large limitation on the high-speed performance of the encoder. The sealing structure of the closed angle encoder shell is needed at present, so that the encoder shell can be conveniently detached and maintained when good sealing performance is provided, friction between the sealing ring and the shell can be effectively reduced, and the high-speed performance of the encoder is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at overcomes prior art's shortcoming and not enough, provides a seal structure of closed angle encoder shell, when providing good sealing performance, makes things convenient for the encoder shell to dismantle simultaneously and maintains, can also effectively reduce the friction between sealing washer and the shell, promotes the high-speed performance of encoder.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sealing structure of a closed angle encoder shell comprises an encoder upper cover, an encoder lower cover, a sealing ring, a mirror ring and an encoder rotating shaft;
the upper encoder cover and the lower encoder cover are fixedly installed inwards respectively to form side sealing, annular grooves are formed in the inner side end faces of the upper encoder cover and the lower encoder cover respectively, the mirror surface rings are arranged in the annular grooves, the encoder rotating shaft is located at the middle shaft positions of the upper encoder cover and the lower encoder cover, and the upper end and the lower end of the encoder rotating shaft are of a two-stage cylindrical structure to form annular steps; the sealing rings are respectively arranged on steps at the upper end and the lower end of the rotating shaft of the encoder, and the edges of the sealing rings respectively support the mirror surface rings arranged in the annular grooves of the upper cover and the lower cover of the encoder to form end face sealing during assembly.
As a preferred technical scheme, the upper encoder cover and the lower encoder cover are of butt joint annular structures and are provided with inner cavities; the lower end face of the upper encoder cover and the upper end face of the lower encoder cover are both planes, and the two end faces are in close contact and butt joint through a fastening piece during assembly to form a cavity containing components inside the encoder, and meanwhile, edge sealing is realized; the inner side end faces of the upper encoder cover and the lower encoder cover are respectively provided with a coaxial annular groove, the inner diameter of each annular groove is larger than the inner diameter of the upper encoder cover and the inner diameter of the lower encoder cover, and the outer diameter of each annular groove is larger than the outer diameter of the sealing ring at two ends of the rotating shaft of the encoder.
As a preferred technical scheme, the mirror surface ring is an annular metal sheet, the diameter of an inner hole of the mirror surface ring is larger than the diameter of an inner edge of the annular groove, and the diameter of an outer edge of the mirror surface ring is smaller than the diameter of an outer edge of the annular groove.
As a preferred technical scheme, one surface of the mirror surface ring is a mirror surface ring rough surface, the other surface of the mirror surface ring is a mirror surface ring, the mirror surface ring rough surface is adhered to the bottom surface of the annular groove by using an adhesive during installation, and the mirror surface of the mirror surface ring is contacted with the edge of the sealing ring; the mirror surface of the mirror surface ring is perpendicular to the axis of the rotating shaft of the encoder after assembly.
As a preferred technical solution, the depth of the annular groove is greater than the thickness of the mirror ring.
As the preferred technical scheme, both ends respectively have a second grade cylindrical structure with the axis of rotation coaxial about the encoder axis of rotation, lie in the first order cylindrical structure diameter in the outside and all be less than the second grade cylindrical structure who lies in the inboard in the second grade cylindrical structure of encoder axis of rotation upper and lower extreme to form the step and install the sealing washer, and the sealing washer lower surface is evenly hugged closely on second grade cylindrical structure terminal surface.
Preferably, the rotating shaft of the encoder is a solid shaft or a hollow shaft.
As a preferred technical scheme, the sealing ring is of an annular structure, and the diameter of the inner edge of the sealing ring is slightly smaller than the diameter of a first-stage cylindrical structure positioned on the outer side in two-stage cylindrical structures at two ends of the rotating shaft of the encoder, so that the sealing ring can be tightly fixed at two ends of the rotating shaft of the encoder during assembly; the outer edge of the sealing ring extends outwards from the lower surface of the sealing ring, the edge of the sealing ring bends towards the upper surface of the sealing ring, and the height of the outer edge of the sealing ring is equal to or slightly larger than the distance from the lower surface of the sealing ring to the mirror surface of the mirror surface ring after assembly.
As a preferred technical scheme, the sealing ring is made of hard plastic materials or soft plastic materials; when the sealing washer is soft plastic material, the region between upper surface recess and the sealing washer lower surface is equipped with metal framework.
As the preferred technical scheme, the upper cover and the lower cover of the encoder are respectively installed inwards during installation and are connected together through a fastener to form edge sealing, and meanwhile, the mirror ring is abutted against the edge of the sealing ring to cause the edge of the sealing ring to generate uniform elastic deformation so as to realize end face sealing.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
(1) the utility model discloses in, install inwards as encoder upper cover and encoder lower cover, and connect to accomplish the assembly back with the fastener, install the upper and lower end sealing washer on encoder axis of rotation both ends and install the upper and lower end mirror surface ring in the annular groove of encoder upper cover and encoder lower cover respectively and all perpendicular with the axis of rotation axle center, can guarantee like this that the sealing washer outer fringe can have even good contact with the mirror surface ring, and the sealing washer outer fringe produces even deformation and reaches sealed effect naturally when making the sealing washer outer fringe and the contact of mirror surface ring, and when loosening the fastener, can conveniently take off encoder upper cover or encoder lower cover, the sealing washer can not form at this in-process and hinder.
(2) The utility model discloses in, the highly equal or slightly of sealing washer outer fringe is greater than the distance of sealing washer lower surface to mirror surface ring mirror surface, and this can ensure that the sealing washer outer fringe produces proper amount elastic deformation to guarantee between encoder shell and the axis of rotation that the installation can not be too tight and hinder the axis of rotation and rotate, thereby influence the measurement.
(3) The utility model discloses in, the mirror surface of mirror surface ring and the friction that produces between the two when the sealing washer edge contact can effectively reduce the encoder rotation, assist emollient then can further reduce the friction, improve the speed performance of encoder.
Drawings
FIG. 1 is a sectional view of the present invention;
fig. 2 is a sectional view of the middle upper end sealing structure of the present invention;
fig. 3 is a cross-sectional view of the middle and lower end sealing structure of the present invention.
Description of reference numerals:
1. an encoder upper cover; 2. a lower cover of the encoder; 3. a seal ring; 4. a mirror ring; 5. an encoder rotating shaft; 6. a fastener; 1-1, covering an annular groove; 2-1, a lower cover annular groove; 3-1, sealing an upper surface groove of the ring; 3-2, the lower surface of the sealing ring; 3-3, the outer edge of the sealing ring; 4-1, a mirror surface ring rough surface; 4-2, mirror surface ring mirror surface; 5-1, a first-stage cylinder with a second-stage cylinder structure at the upper end of the rotating shaft; 5-2, a second-stage cylinder with a second-stage cylinder structure is arranged at the upper end of the rotating shaft; 5-3, a second-stage cylindrical structure first-stage cylinder is arranged at the lower end of the rotating shaft; 5-4, and a second-stage cylinder with a second-stage cylinder structure at the lower end of the rotating shaft.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Examples
As shown in fig. 1-3, the utility model discloses a sealed structure of closed angle encoder shell: the device comprises an encoder upper cover 1, an encoder lower cover 2, a sealing ring 3, a mirror ring 4, an encoder rotating shaft 5 and a fastener 6. And the two sealing rings 3 are respectively fixed on an annular step formed by the upper-end and lower-end secondary cylindrical structures of the encoder rotating shaft 5 consisting of the first-level cylinder 5-1 with the secondary cylindrical structure at the upper end of the rotating shaft, the second-level cylinder 5-2 with the secondary cylindrical structure at the upper end of the rotating shaft, the first-level cylinder 5-3 with the secondary cylindrical structure at the lower end of the rotating shaft and the second-level cylinder 5-4 with the secondary cylindrical structure at the lower end of the rotating shaft. The encoder upper cover 1 and the encoder lower cover 2 are respectively provided with an upper cover annular groove 1-1 and a lower cover annular groove 2-1 on the inner side end surface, a mirror surface ring 4 is respectively fixed in the upper cover annular groove 1-1 and the lower cover annular groove 2-1 by an adhesive, one surface of the mirror surface ring 4 is a mirror surface ring rough surface 4-1, and the other surface is a mirror surface ring mirror surface 4-2. The mirror ring 4 is fixed with its mirror ring rough surface 4-1 in contact with the groove bottom surface of the annular recess by an adhesive. Encoder upper cover 1 and encoder lower cover 2 install inwards respectively during the installation to make its terminal surface plane laminating connect together through fastener 6 and form the side seal, make simultaneously mirror surface ring 4 support sealing washer outer fringe 3-3, cause sealing washer outer fringe 3-3 to take place elastic deformation and reach sealed effect, mirror surface ring mirror surface 4-2 and sealing washer outer fringe 3-3 contact can effectively reduce the friction that produces between the two when the encoder rotates simultaneously, it then can further reduce the friction to assist emollient, improves the speed performance of encoder.
Further, the encoder rotating shaft 5 is a solid or hollow shaft, and can be selected according to actual conditions. And the upper end and the lower end of the rotating shaft of the encoder are respectively provided with a secondary cylindrical structure to form an annular step, and the annular step and the rotating shaft are coaxial. Rotation axis upper end second grade cylindrical structure and rotation axis lower extreme second grade cylindrical structure constitute by leaning on outside first grade cylinder and leaning on inboard second grade cylinder, lean on interior rotation axis upper end second grade cylindrical structure second grade cylinder 5-2 and rotation axis lower extreme second grade cylindrical structure second grade cylinder 5-4 diameter to be greater than respectively by outer rotation axis upper end second grade cylindrical structure first grade cylinder 5-1 and rotation axis lower extreme second grade cylindrical structure first grade cylinder 5-3 diameter. The diameters of the first-stage cylinder 5-1 of the two-stage cylindrical structure at the upper end of the rotating shaft and the first-stage cylinder 5-3 of the two-stage cylindrical structure at the lower end of the rotating shaft are equal to or slightly larger than the diameter of the inner hole of the sealing ring 3, so that the sealing ring 3 can be firmly arranged on the rotating shaft 5 of the encoder. The end surface of the second-stage cylinder 5-2 with the second-stage cylindrical structure at the upper end of the rotating shaft and the end surface of the second-stage cylinder 5-4 with the second-stage cylindrical structure at the lower end of the rotating shaft are planes which are vertical to the axial direction of the rotating shaft 5.
The sealing ring 3 is made of hard plastic materials such as polytetrafluoroethylene or soft plastic materials such as silicon rubber, and when the sealing ring is made of soft plastic materials such as silicon rubber, a metal framework is arranged in an area between the groove in the upper surface and the lower surface of the sealing ring. The diameter of the inner hole is equal to or slightly smaller than the diameters of the first-stage cylinder 5-1 of the second-stage cylindrical structure at the upper end of the outer second-stage cylindrical structure at the two ends of the encoder rotating shaft 5 and the first-stage cylinder 5-3 of the second-stage cylindrical structure at the lower end of the rotating shaft. The upper surface of the sealing ring is provided with a trapezoidal upper surface groove 3-1 of the sealing ring, and the upper surface groove 3-1 of the sealing ring faces the outer side of the encoder during installation, so that external pollutants sprayed on the encoder shell, particularly oil-water mixtures such as cutting fluid and the like, can be conveniently discharged immediately, and cannot be gathered at the joint of the encoder shell and enter the encoder to cause the reduction of the measurement precision or even the failure. The area between the groove 3-1 on the upper surface of the sealing ring and the lower surface 3-2 of the sealing ring comprises a metal framework, so that the sealing ring 3 is ensured to have enough strength, and the sealing performance of the encoder during rotation after the encoder is arranged on the rotating shaft 5 of the encoder is ensured. The lower surface 3-2 of the sealing ring is a plane so that the sealing ring 3 is fully attached to the side surfaces of the second-stage cylinders at two ends of the rotating shaft 5 of the encoder, and the sealing ring 3 is fully attached to the mirror surface rings respectively arranged in the upper cover annular groove 1-1 and the lower cover annular groove 2-1 of the upper cover 1 and the lower cover 2 of the encoder without a gap when being installed, so that the sealing performance of the sealing structure can be guaranteed. The outer edge 3-3 of the sealing ring extends outwards from the lower surface 3-2 of the sealing ring, the edge is bent towards the upper surface of the sealing ring, and the heights of the outer edge 3-3 of the sealing ring are equal to or slightly larger than the distance from the lower surface 3-2 of the sealing ring to the mirror surface 4-2 of the mirror surface ring, so that the outer edge 3-3 of the sealing ring is properly deformed to form sealing when being installed. The extended length of the outer edge 3-3 of the sealing ring ensures that the outer edge 3-3 of the sealing ring can be contacted with the mirror ring and cannot be creased when being installed, and generates proper elastic deformation to ensure the sealing performance.
The encoder upper cover 1 and the encoder lower cover 2 are respectively provided with a rectangular upper cover annular groove 1-1 and a rectangular lower cover annular groove 2-1 at the end surfaces close to the inner sides, and the depth of the annular grooves is larger than the thickness of the mirror surface ring 4. The upper encoder cover and the lower encoder cover are of butted annular structures and are provided with inner cavities; the lower end face of the upper encoder cover and the upper end face of the lower encoder cover are both planes, and the two end faces are in close contact and butt joint through a fastening piece during assembly to form a cavity containing components inside the encoder, and meanwhile, edge sealing is realized; the inner side end faces of the upper encoder cover and the lower encoder cover are respectively provided with a coaxial annular groove, the inner diameter of each annular groove is larger than the inner diameter of the upper encoder cover and the inner diameter of the lower encoder cover, and the outer diameter of each annular groove is larger than the outer diameter of the sealing ring at two ends of the rotating shaft of the encoder.
The mirror surface ring 4 is an annular metal sheet with a mirror surface, the diameter of an inner hole of the mirror surface ring 4 is respectively larger than the diameter of the inner edge of the upper cover annular groove 1-1 and the diameter of the inner edge of the lower cover annular groove 2-1, and the diameter of the outer edge of the mirror surface ring 4 is respectively smaller than the diameter of the outer edge of the annular groove. When the sealing ring is installed, the rough surface 4-1 of the mirror surface ring is adhered to the bottom surfaces of the upper cover annular groove 1-1 and the lower cover annular groove 2-1 by using an adhesive, and the mirror surface 4-2 of the mirror surface ring is contacted with the outer edge 3-3 of the sealing ring. The ring mirror surface of the assembled mirror surface is perpendicular to the axis of the rotating shaft of the encoder
In the specific embodiment, the sealing ring is arranged behind the rotating shaft of the encoder, and the mirror surface rings are respectively arranged behind the annular grooves of the upper cover and the lower cover of the encoder and are axially vertical to the rotating shaft, so that the outer edges of the sealing ring can be ensured to be in good contact with the mirror surface rings. Connect with the fastener and form the side seal after encoder upper cover and encoder lower cover install inwards, make the sealing washer outer fringe and mirror surface ring contact the time sealing washer outer fringe produce deformation and reach the end face seal effect naturally simultaneously, when loosening the fastener, can conveniently take off encoder upper cover or encoder lower cover moreover, the sealing washer can not form at this in-process and hinder. In addition, the height of the outer edge of the sealing ring is equal to or slightly larger than the distance from the lower surface of the sealing ring to the mirror surface of the mirror surface ring, so that proper elastic deformation of the outer edge of the sealing ring can be ensured, and the situation that the rotating shaft is blocked to rotate due to too tight installation between the encoder shell and the rotating shaft is ensured, so that the measurement is influenced. Meanwhile, the mirror surface of the mirror surface ring is in contact with the edge of the sealing ring, so that friction between the encoder and the sealing ring during rotation can be effectively reduced, the friction can be further reduced by the aid of a lubricant, and the speed performance of the encoder is improved.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. A sealing structure of a closed angle encoder shell is characterized by comprising an encoder upper cover, an encoder lower cover, a sealing ring, a mirror surface ring and an encoder rotating shaft;
the upper encoder cover and the lower encoder cover are fixedly installed inwards respectively to form side sealing, annular grooves are formed in the inner side end faces of the upper encoder cover and the lower encoder cover respectively, the mirror surface rings are arranged in the annular grooves, the encoder rotating shaft is located at the middle shaft positions of the upper encoder cover and the lower encoder cover, and the upper end and the lower end of the encoder rotating shaft are of a two-stage cylindrical structure to form annular steps; the sealing rings are respectively arranged on steps at the upper end and the lower end of the rotating shaft of the encoder, and the edges of the sealing rings respectively support mirror surface rings arranged in annular grooves of an upper cover and a lower cover of the encoder to form end face sealing during assembly.
2. A sealing structure of a housing of a closed angle encoder according to claim 1, wherein the encoder upper cover and the encoder lower cover are each a dockable ring structure having an inner cavity; the lower end face of the upper encoder cover and the upper end face of the lower encoder cover are both planes, and the two end faces are in close contact and butt joint through a fastening piece during assembly to form a cavity containing components inside the encoder, and meanwhile, edge sealing is realized; the inner side end faces of the upper encoder cover and the lower encoder cover are respectively provided with a coaxial annular groove, the inner diameter of each annular groove is larger than the inner diameter of the upper encoder cover and the inner diameter of the lower encoder cover, and the outer diameter of each annular groove is larger than the outer diameter of the sealing ring at two ends of the rotating shaft of the encoder.
3. A sealing structure of a housing of a closed angle encoder according to claim 1, wherein said mirror ring is an annular metal thin plate, an inner hole diameter of the mirror ring is larger than an inner edge diameter of the annular groove, and an outer edge diameter of the mirror ring is smaller than an outer edge diameter of the annular groove.
4. A sealing structure of a casing of a closed type angle encoder according to claim 1, wherein the mirror ring has a mirror ring rough surface on one side and a mirror ring mirror surface on the other side, the mirror ring rough surface is adhered to a bottom surface of the annular groove by an adhesive during mounting, and the mirror ring mirror surface is in contact with an edge of the seal ring; the mirror surface of the mirror surface ring is perpendicular to the axis of the rotating shaft of the encoder after assembly.
5. A sealing structure of a housing of a closed angle encoder according to claim 2, wherein a depth of the annular groove is larger than a thickness of the mirror ring.
6. A sealing structure of a casing of a closed angle encoder according to claim 1, wherein the upper and lower ends of the rotating shaft of the encoder each have a secondary cylindrical structure having the same axis as the rotating shaft, the diameter of the first-stage cylindrical structure located outside of the secondary cylindrical structures at the upper and lower ends of the rotating shaft of the encoder is smaller than that of the second-stage cylindrical structure located inside, and the end surface of the second-stage cylindrical structure is perpendicular to the axis of the rotating shaft, so that the sealing ring is installed by forming a step, and the lower surface of the sealing ring is uniformly attached to the end surface of the second-stage.
7. The sealing structure of a housing of a closed angle encoder according to claim 6, wherein the encoder rotating shaft is a solid shaft or a hollow shaft.
8. A sealing structure of a closed angle encoder casing according to claim 7, characterized in that the sealing ring is of an annular structure, the diameter of the inner edge of the sealing ring is slightly smaller than the diameter of the first-stage cylindrical structure positioned at the outer side in the two-stage cylindrical structures at the two ends of the rotating shaft of the encoder, so that the sealing ring can be tightly fixed at the two ends of the rotating shaft of the encoder during assembly; the outer edge of the sealing ring extends outwards from the lower surface of the sealing ring, the edge of the sealing ring bends towards the upper surface of the sealing ring, and the height of the outer edge of the sealing ring is equal to or slightly larger than the distance from the lower surface of the sealing ring to the mirror surface of the mirror surface ring after assembly.
9. A sealing structure of a housing of a closed angle encoder according to claim 1, wherein the sealing ring is made of a hard plastic material or a soft plastic material; when the sealing washer is soft plastic material, the region between the annular groove on the encoder upper cover and the sealing washer lower surface is equipped with metal framework.
10. A sealing arrangement for a closed angle encoder housing according to any one of claims 1 to 9, characterised in that the upper encoder cover and the lower encoder cover are mounted inwardly respectively and are connected together by fasteners to form an edge seal and simultaneously to urge the mirror ring against the seal ring edge to cause uniform elastic deformation of the seal ring edge to effect an end face seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020116453.1U CN211477188U (en) | 2020-01-17 | 2020-01-17 | Sealing structure of closed angle encoder shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020116453.1U CN211477188U (en) | 2020-01-17 | 2020-01-17 | Sealing structure of closed angle encoder shell |
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| Publication Number | Publication Date |
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| CN211477188U true CN211477188U (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020116453.1U Active CN211477188U (en) | 2020-01-17 | 2020-01-17 | Sealing structure of closed angle encoder shell |
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| CN (1) | CN211477188U (en) |
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2020
- 2020-01-17 CN CN202020116453.1U patent/CN211477188U/en active Active
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Address after: No. 6 Shilou Road Section, Shilian Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province, 511447 (Part of the first floor area of Building 1) Patentee after: Guangzhou Jinggu Intelligent Equipment Co.,Ltd. Address before: 511447 3rd floor, No.80 Zhujiang Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU ACCUGLEN INTELLIGENT TECH LTD. |