CN214153972U - Electrical equipment mounting structure - Google Patents
Electrical equipment mounting structure Download PDFInfo
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- CN214153972U CN214153972U CN202120129883.1U CN202120129883U CN214153972U CN 214153972 U CN214153972 U CN 214153972U CN 202120129883 U CN202120129883 U CN 202120129883U CN 214153972 U CN214153972 U CN 214153972U
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Abstract
The application discloses an electrical equipment mounting structure, which comprises an inner arc plate and an outer arc plate which are in fit contact with the outer side surface of a lightning rod, wherein the inner arc plate and the outer arc plate are detachably connected, and the inner arc plate and the outer arc plate can keep the stability of the relative position of the inner arc plate and the outer arc plate in the axial direction of the lightning rod after being connected to the outer side surface of the lightning rod; an inner rod is fixedly arranged on the inner arc plate, the axis of the inner rod is perpendicular to that of the inner arc plate, an inner lifting rope is stably connected to the inner rod, an inner block is connected to the inner lifting rope, a measuring rod is connected to the inner block, and scale marks are arranged on the measuring rod; the outer arc plate is fixedly provided with an outer rod, the axis of the outer rod is perpendicular to the axis of the outer arc plate, the outer rod is stably connected with an outer lifting rope, an outer block is connected onto the outer lifting rope, a yielding hole for the measuring rod to pass through is formed in the outer block, and the measuring rod is connected with the outer block in a sliding mode through the yielding hole. This application has the effect of being convenient for accurately judge the vertical state of lightning rod.
Description
Technical Field
The application relates to the technical field of lightning rod installation, in particular to an electrical equipment installation structure.
Background
Lightning rod, also known as lightning rod, is used to protect buildings, tall trees etc. from lightning strike device. The top end of the protected object is provided with a lightning receptor which is connected with a drainage ground net buried underground by a lead wire according with the specification, and the lightning conductor is arranged on the horizontal plane of a wall body and is connected with a steel bar in a building through welding guidance.
The patent of the Chinese utility model with the publication number of CN204947552U discloses a lightning rod mounting rack, which comprises a base, a hanging rack, a waist ring and a waist ring base; the hanging frame is fixed on the base and used for supporting and fixing the lightning rod; the waist ring is fixed on the waist ring base and is used for locking and positioning the lightning rod along the horizontal direction.
The above prior art solutions have the following drawbacks: when the lightning rod is installed, the lightning rod needs to be kept vertical, the more vertical the lightning rod is, the more stable the lightning rod is in connection with a wall body, the more difficult the lightning rod is to keep deforming when being subjected to external force, and whether the lightning rod is vertical or not is generally judged by feeling through the hand-held lightning rod at present, so that the accuracy is low.
SUMMERY OF THE UTILITY MODEL
The utility model provides an electrical equipment mounting structure, it has the effect of being convenient for accurate judgement lightning rod vertical state.
The technical purpose of the application is realized by the following technical scheme:
an electrical equipment mounting structure comprises an inner arc plate and an outer arc plate which are in fit contact with the outer side surface of a lightning rod, wherein the inner arc plate and the outer arc plate are detachably connected, and the inner arc plate and the outer arc plate can keep the stability of the relative position of the inner arc plate and the outer arc plate in the axial direction of the lightning rod after being connected to the outer side surface of the lightning rod;
an inner rod is fixedly arranged on the inner arc plate, the axis of the inner rod is perpendicular to that of the inner arc plate, an inner lifting rope is stably connected to the inner rod, an inner block is connected to the inner lifting rope, a measuring rod is connected to the inner block, and scale marks are arranged on the measuring rod;
the outer arc plate is fixedly provided with an outer rod, the axis of the outer rod is perpendicular to the axis of the outer arc plate, the outer rod is stably connected with an outer lifting rope, an outer block is connected onto the outer lifting rope, a yielding hole for the measuring rod to pass through is formed in the outer block, and the measuring rod is connected with the outer block in a sliding mode through the yielding hole.
By adopting the technical scheme, after the inner arc plate and the outer arc plate are respectively sleeved outside the lightning rod, the inner arc plate and the outer arc plate are connected with each other to enable the inner side surface to be contacted with the outer side surface of the lightning rod, the axes of the inner arc plate and the outer arc plate are superposed with the axis of the lightning rod at the moment, one end of the measuring tube far away from the inner block is inserted into the abdicating hole of the outer block, the observation scale mark is positioned in the abdicating hole, the inner block and the inner block are connected through the inner suspension rope, the outer block and the outer rod are connected through the outer suspension rope, therefore, when the inner rod and the outer rod are in the horizontal state, the outer suspension rope and the inner suspension rope are in the vertical state, the distance between the inner block and the outer block is a fixed value at the moment, whether the inner rod is in the horizontal state can be determined by observing the mutual relation between the scale mark on the measuring rod and the abdicating hole, the inner rod can be in the horizontal state by adjusting the inclination of the lightning rod, therefore, the lightning rod is kept in a good vertical state during installation, the acting force generated by self inclination in the use process is reduced, and the stability of connection between the lightning rod and a building is improved.
The application is further configured to: the inner arc plate is fixedly provided with an inner connecting plate, the outer arc plate is fixedly provided with an outer connecting plate, and the inner connecting plate and the outer connecting plate are connected in a compression mode through a bolt and nut assembly.
Through adopting above-mentioned technical scheme, through bolt and nut subassembly with in-connection board and outer connecting plate compression connection, can realize dismantling between inner arc board and the outer arc board and be connected.
The application is further configured to: a pressing assembly is arranged between the inner arc plate and the outer arc plate, the pressing assembly can tightly press and connect the inner arc plate and the outer arc plate with the outer side surface of the lightning rod to limit the relative movement between the inner arc plate and the outer side surface of the lightning rod, and the pressing assembly is a bolt and nut assembly;
the inner arc plate and the outer arc plate are arranged at intervals along the axis direction of the inner arc plate and the outer arc plate, and the inner rods on the inner arc plates are perpendicular to each other.
Through adopting above-mentioned technical scheme, interior arc board and outer arc board cover are located and are compressed tightly the subassembly outside back, use bolt and nut subassembly with interior arc board and outer arc board and lightning rod compression connection, the setting of two interior arc boards can realize the not equidirectional determination of pole levelness in the horizontal plane, the quick measurement of the measuring stick of being convenient for.
The application is further configured to: the lightning rod supporting device is characterized by comprising a supporting mechanism which is fixedly pressed on the outer side of a lightning rod, wherein a supporting block which is sleeved on the outer side of the lightning rod is wrapped by the supporting mechanism, the supporting block is detachably connected with the lightning rod, and the upper end surface of the supporting block is in contact with the lower surfaces of an inner arc plate and an outer arc plate which are sleeved on the outer side of the lightning rod.
Through adopting above-mentioned technical scheme, the supporting shoe is fixed back with the lightning rod, interconnect after locating the lightning rod outside with inner arc board and outer arc board cover, the medial surface that makes inner arc board and outer arc board keeps and the contact of lightning rod lateral surface, and the lower surface and the carriage up end contact of inner arc board and outer arc board, inner arc board and outer arc board can rotate around its self axis this moment, be convenient for confirm the gradient of interior pole and outer pole on the different horizontal directions, thereby confirm the vertical state of lightning rod.
The application is further configured to: the supporting blocks are provided with two mutually hinged ends, and the other ends of the two supporting blocks are connected in a pressing mode through bolt and nut components.
Through adopting above-mentioned technical scheme, locate the lightning rod outside with two supporting shoes cover after articulated each other, use bolt and nut subassembly to be connected two supporting shoes and lightning rod pressfitting, realize being connected dismantled of supporting shoe and lightning rod.
The application is further configured to: and a lubricating layer is arranged on the contact surface of the supporting block and the inner arc plate and the contact surface of the supporting block and the outer arc plate.
Through adopting above-mentioned technical scheme, the lubricating layer can reduce interior arc board and outer arc board when rotating around its axis, with the frictional resistance that the supporting shoe supported, the rotation of being convenient for interior arc board and outer arc board is used.
The application is further configured to: the inner arc plate and the outer arc plate are respectively and fixedly provided with an indicating rod, and the axis of the indicating rod is along the axis direction of the inner arc plate.
Through adopting above-mentioned technical scheme, with interior arc board and outer arc board and lightning rod erection joint back, through observing the gap between indicator lever and the lightning rod, be convenient for confirm interior arc board and outer arc board whether with the contact of lightning rod side, guarantee measuring rod measuring accuracy.
The application is further configured to: the outer block is provided with a display hole communicated with the abdicating hole, and the outer block is fixedly provided with a magnifier in the display hole.
Through adopting above-mentioned technical scheme, observe the position of scale mark through the magnifying glass, the staff of being convenient for observes the position of scale mark.
The application is further configured to: the measuring rod comprises an arc-shaped ring coaxial with the inner arc plate, and the two ends of the arc-shaped ring are respectively and fixedly provided with an inner measuring rod hinged with the inner block and an outer measuring rod extending into the abdicating hole.
Through adopting above-mentioned technical scheme, after the measuring stick stretched into the position accuracy in the hole of stepping down, can judge that the lightning rod is in the horizontality along the radial of interior pole, observe the distance between arc ring and the lightning rod this moment, if the distance between arc ring and the lightning rod side equals, then the lightning rod is whole in vertical state.
In summary, the present application includes at least one of the following benefits:
1. after the inner arc plate and the outer arc plate are respectively sleeved outside the lightning rod, the inner arc plate and the outer arc plate are connected with each other, the inner side surface of the inner arc plate is in contact with the outer side surface of the lightning rod, the axes of the inner arc plate and the outer arc plate are coincident with the axis of the lightning rod, one end of the measuring tube, which is far away from the inner block, is inserted into the abdicating hole of the outer block, the position of the scale mark in the abdicating hole is observed, because the inner block and the inner rod are connected through the inner lifting rope, and the outer block and the outer rod are connected through the outer lifting rope, when the inner rod and the outer rod are in a horizontal state, the outer lifting rope and the inner lifting rope are in a vertical state, the distance between the inner block and the outer block is a fixed value, whether the inner rod is in a horizontal state can be determined by observing the correlation between the scale mark on the measuring rod and the inner rod in the abdicating hole, the inner rod can be in the horizontal state by adjusting the inclination of the lightning rod, thereby the lightning rod can be kept in a good vertical state when the lightning rod is installed, the acting force generated by self inclination in the using process is reduced, and the stability of the connection between the building and the building is improved;
2. after the supporting block is fixed with the lightning rod, the inner arc plate and the outer arc plate are sleeved outside the lightning rod and then are connected with each other, so that the inner side surfaces of the inner arc plate and the outer arc plate are kept in contact with the outer side surface of the lightning rod, the lower surfaces of the inner arc plate and the outer arc plate are in contact with the upper end surface of the supporting frame, the inner arc plate and the outer arc plate can rotate around the axis of the inner arc plate and the outer arc plate, the inclination of the inner rod and the inclination of the outer rod in different horizontal directions can be conveniently determined, and the vertical state of the lightning rod can be determined;
3. after the measuring stick stretches into the position accuracy in the hole of stepping down, can judge that the lightning rod is in the horizontality along the radial of interior pole, observe the distance between arc ring and the lightning rod this moment, if the distance between arc ring and the lightning rod side equals, then the whole vertical state that is in of lightning rod.
Drawings
FIG. 1 is a schematic overall structure diagram of the first embodiment;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic structural diagram showing a connection relationship between the support mechanism and the inner arc plate and the outer arc plate in the second embodiment.
In the figure, 1, an inner arc plate; 11. an inner rod; 12. an inner lifting rope; 13. an inner block; 14. an inner connection plate; 2. an outer arc plate; 21. an outer rod; 22. an outer lifting rope; 23. an outer block; 231. a hole of abdication; 232. a display aperture; 233. a magnifying glass; 24. an outer connecting plate; 3. a measuring rod; 31. scale lines; 4. a compression assembly; 5. a support mechanism; 51. a support block; 511. a lubricating layer; 6. an indication lever; 7. a lightning rod.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
Example one
Referring to fig. 1, for this application discloses an electrical equipment mounting structure, include with 7 lateral surfaces of lightning rod cooperation contacts inner arc board 1 and outer arc board 2, inner arc board 1 is semicircle annular plate with outer arc board 2, the diameter of inner arc board 1 and 2 sides of outer arc board equals with 7 diameters of lightning rod, and the tolerance of the diameter of inner arc board 1 and 2 sides of outer arc board is negative tolerance. Interior arc 1 and outer arc 2 can dismantle the connection, and the both ends of 1 circumference of interior arc all have set firmly inner connecting plate 14, and outer connecting plate 24 has all been set firmly at the both ends of 2 circumference of outer arc, has all seted up the round hole on inner connecting plate 14 and the outer connecting plate 24, wears to be equipped with the bolt on inner connecting plate 14 and the outer connecting plate 24, and threaded connection has the nut on the bolt, compresses tightly through the bolt and nut subassembly between inner connecting plate 14 and the outer connecting plate 24 and connects.
Bolt and nut subassembly is compressing tightly subassembly 4, and when locating the lightning rod 7 outside of treating the installation back and use bolt and nut subassembly to compress tightly interior arc 1 and outer arc 2 each other and be connected with interior arc 1 with outer arc 2 covers of interior arc 1, the medial surface of interior arc 1 and outer arc 2 compresses tightly with the lateral surface contact of lightning rod 7, the relative movement between arc 1 and outer arc 2 and the 7 lateral surfaces of lightning rod in the restriction.
The inner arc plate 1 and the outer arc plate 2 are arranged at intervals along the axial direction of the inner arc plate at the outer side of the lightning rod 7, the included angle of the two inner arc plates 1 along the circumferential direction of the inner arc plate is 90 degrees, namely after one of the inner arc plates 1 rotates around the axial line of the inner arc plate by 90 degrees, the inner arc plates can be mutually overlapped with the other inner arc plate 1 along the axial direction of the inner arc plate.
All set firmly indicator lever 6 on inner arc board 1 and the outer arc board 2, indicator lever 6 is the round bar, indicator lever 6 is fixed in on the terminal surface of inner arc board 1 and outer arc board 2, indicator lever 6 axis is along 1 axis direction of inner arc board, one of them generating line of indicator lever 6 side and one of them generating line of 1 medial surface of inner arc board are located same straight line, when the medial surface of inner arc board 1 and the contact of 7 lateral surfaces of lightning rod this moment, the side of indicator lever 6 and the side contact of lightning rod 7. By observing the gap between the indicator rod 6 and the lightning rod 7, it is convenient to determine whether the inner arc plate 1 and the outer arc plate 2 are in contact with the side of the lightning rod 7.
Referring to fig. 1 and 2, all be connected with measuring stick 3 on the inner mass 13, measuring stick 3 is articulated with inner mass 13, 11 axis direction and perpendicular to lifting rope direction in the articulated shaft axis perpendicular to of measuring stick 3 and inner mass 13, measuring stick 3 includes the arc ring coaxial with inner arc board 1, the arc ring is the semicircle ring, the internal diameter of arc ring is greater than inner arc board 1's internal diameter, the one end of arc ring sets firmly with inner mass 13 articulated interior measuring stick, the arc ring other end has set firmly outer measuring stick, the one end that the arc ring was kept away from to outer measuring stick is provided with scale mark 31.
Offer the hole 231 of stepping down that holds measuring stick 3 and pass on outer block 23, the square hole of outside pole length direction both ends face on outer block 23 is run through to the hole 231 of stepping down, measuring stick 3 is through hole 231 and outer block 23 sliding connection of stepping down, measuring stick 3 can slide in the hole 231 of stepping down, and measuring stick 3 only has the downside and steps down hole 231 side contact, there is the clearance between the all the other side faces of measuring stick 3 and the hole 231 side of stepping down.
After the measuring rod 3 stretches into the position accuracy in the hole 231 of stepping down, can judge that the lightning rod 7 is in the horizontal state along the radial of interior pole 11, observe the distance between arc ring and the lightning rod 7 this moment, can simply judge the holistic vertical state of lightning rod 7.
Set up on outer piece 23 and let a hole 231 the display hole 232 that communicates, display hole 232 sets up in outer piece 23 side, and outer piece 23 sets firmly magnifying glass 233 in display hole 232. The position of the graduation mark 31 is observed through the magnifying glass 233, which facilitates the staff to observe the position of the graduation mark 31.
The implementation principle of the above embodiment is as follows:
after the inner arc plate 1 and the outer arc plate 2 are respectively sleeved outside the lightning rod 7, the inner arc plate 1 and the outer arc plate 2 are connected with each other, the inner side surface of the inner arc plate is contacted with the outer side surface of the lightning rod 7, the axes of the inner arc plate 1 and the outer arc plate 2 are coincided with the axis of the lightning rod 7 at the moment, one end of the measuring tube, which is far away from the inner block 13, is inserted into the abdicating hole 231 of the outer block 23, the position of the scale mark 31 is observed in the abdicating hole 231, because the inner block 13 is connected with the inner rod 11 through the inner lifting rope 12, and the outer block 23 is connected with the outer rod 21 through the outer lifting rope 22, when the inner rod 11 and the outer rod 21 are in a horizontal state, the outer lifting rope 22 and the inner lifting rope 12 are in a vertical state, at the moment, the distance between the inner block 13 and the outer block 23 is a fixed value, and by observing the mutual relation between the scale mark 31 on the measuring rod 3 and the abdicating hole 231, the inner rod 11 can be positioned in a horizontal state, so that the lightning rod 7 can be kept in a good vertical state during installation, the acting force generated by self inclination in the using process is reduced, and the stability of connection between the lightning rod and a building is improved.
Example two
Referring to fig. 3, an electrical equipment mounting structure, with embodiment 1 difference lies in, the medial surface diameter and the lightning rod 7 diameter of inner arc board 1 and outer arc board 2, and the tolerance of the medial surface diameter of inner arc board 1 and outer arc board 2 is positive tolerance, and the lightning rod 7 outside is located to inner arc board 1 and 2 covers of outer arc board, uses to compress tightly subassembly 4 and compresses tightly the connection back with inner arc board 1 and outer arc board 2, and inner arc board 1 and outer arc board 2 can rotate around lightning rod 7 axis.
Including compressing tightly the supporting mechanism 5 that is fixed in the lightning rod 7 outside, the supporting shoe 51 in the lightning rod 7 outside is located to 5 parcel cover of supporting mechanism, and supporting shoe 51 is the semicircle ring piece, and the equal integrated into one piece in both ends of supporting shoe 51 has rectangular plate, and supporting shoe 51 can be dismantled with lightning rod 7 and be connected, and supporting shoe 51 is provided with one end two articulated each other, and two supporting shoes 51 other ends use bolt and nut subassembly to compress tightly the connection. In another embodiment, the two support blocks 51 are pinch grips connected to the lightning rod 7.
The upper end surface of the supporting block 51 contacts with the lower surfaces of the inner arc plate 1 and the outer arc plate 2 sleeved outside the lightning rod 7. The surface of the supporting block 51 contacting the inner arc plate 1 and the outer arc plate 2 is provided with a lubricating layer 511, and the lubricating layer 511 is a semi-copper ring fixed on the upper end surface of the supporting block 51.
The implementation principle of the above embodiment is as follows:
supporting shoe 51 is fixed back with lightning rod 7, interconnect after 7 outside lightning rods are located to interior arc board 1 and outer arc board 2 cover, the medial surface that makes interior arc board 1 and outer arc board 2 keeps and 7 lateral surface contacts with lightning rod, and the lower surface and the carriage up end contact of interior arc board 1 and outer arc board 2, interior arc board 1 and outer arc board 2 can rotate around its self axis this moment, be convenient for confirm the gradient of interior pole 11 and outer pole 21 in the different horizontal directions, thereby confirm the vertical state of lightning rod 7.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. An electrical equipment mounting structure characterized in that: the lightning rod structure comprises an inner arc plate (1) and an outer arc plate (2) which are in fit contact with the outer side surface of a lightning rod (7), wherein the inner arc plate (1) and the outer arc plate (2) are detachably connected, and the inner arc plate (1) and the outer arc plate (2) can keep the stability of the relative position of the inner arc plate and the outer arc plate in the axial direction of the lightning rod (7) after being connected to the outer side surface of the lightning rod (7);
an inner rod (11) is fixedly arranged on the inner arc plate (1), the axis of the inner rod (11) is perpendicular to the axis of the inner arc plate (1), an inner lifting rope (12) is stably connected to the inner rod (11), an inner block (13) is connected to the inner lifting rope (12), a measuring rod (3) is connected to the inner block (13), and a scale mark (31) is arranged on the measuring rod (3);
outer pole (21) sets firmly on outer arc board (2), outer pole (21) axis and outer arc board (2) axis mutually perpendicular, outer lifting rope (22) of stable connection on outer pole (21), be connected with outer piece (23) on outer lifting rope (22), set up hole of stepping down (231) that hold measuring stick (3) and pass on outer piece (23), measuring stick (3) are through hole of stepping down (231) and outer piece (23) sliding connection.
2. An electric equipment mounting structure according to claim 1, characterized in that: the inner arc plate (1) is fixedly provided with an inner connecting plate (14), the outer arc plate (2) is fixedly provided with an outer connecting plate (24), and the inner connecting plate (14) and the outer connecting plate (24) are connected in a pressing mode through a bolt and nut assembly.
3. An electric equipment mounting structure according to claim 1, characterized in that: a pressing assembly (4) is arranged between the inner arc plate (1) and the outer arc plate (2), the pressing assembly (4) can tightly press and connect the inner arc plate (1) and the outer arc plate (2) with the outer side surface of the lightning rod (7) to limit the relative movement between the inner arc plate (1) and the outer arc plate (2) and the outer side surface of the lightning rod (7), and the pressing assembly (4) is a bolt and nut assembly;
the inner arc plate (1) and the outer arc plate (2) are arranged at intervals along the axis direction, and the inner rods (11) on the inner arc plate (1) are perpendicular to each other.
4. An electric equipment mounting structure according to claim 1, characterized in that: including compressing tightly supporting mechanism (5) that are fixed in the lightning rod (7) outside, supporting shoe (51) in the lightning rod (7) outside is located to supporting mechanism (5) parcel piece cover, supporting shoe (51) can be dismantled with lightning rod (7) and be connected, the up end of supporting shoe (51) and the lower surface contact of locating inner arc board (1) and outer arc board (2) in the lightning rod (7) outside with the cover.
5. An electric equipment mounting structure according to claim 4, wherein: the supporting blocks (51) are provided with two supporting blocks, one ends of the two supporting blocks are hinged to each other, and the other ends of the two supporting blocks (51) are connected in a pressing mode through bolt and nut components.
6. An electric equipment mounting structure according to claim 4, wherein: and a lubricating layer (511) is arranged on the contact surface of the supporting block (51) and the inner arc plate (1) and the outer arc plate (2).
7. An electric equipment mounting structure according to claim 1, characterized in that: the inner arc plate (1) and the outer arc plate (2) are respectively and fixedly provided with an indicating rod (6), and the axis of the indicating rod (6) is along the axis direction of the inner arc plate (1).
8. An electric equipment mounting structure according to claim 1, characterized in that: the outer block (23) is provided with a display hole (232) communicated with the abdicating hole (231), and the outer block (23) is fixedly provided with a magnifying lens (233) in the display hole (232).
9. An electric equipment mounting structure according to claim 1, characterized in that: the measuring rod (3) comprises an arc-shaped ring coaxial with the inner arc plate (1), and the two ends of the arc-shaped ring are respectively and fixedly provided with an inner measuring rod hinged with the inner block (13) and an outer measuring rod extending into the abdicating hole (231).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129883.1U CN214153972U (en) | 2021-01-18 | 2021-01-18 | Electrical equipment mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120129883.1U CN214153972U (en) | 2021-01-18 | 2021-01-18 | Electrical equipment mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214153972U true CN214153972U (en) | 2021-09-07 |
Family
ID=77548312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120129883.1U Active CN214153972U (en) | 2021-01-18 | 2021-01-18 | Electrical equipment mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214153972U (en) |
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2021
- 2021-01-18 CN CN202120129883.1U patent/CN214153972U/en active Active
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