CN220527204U - End cover device and base station antenna thereof - Google Patents
End cover device and base station antenna thereof Download PDFInfo
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- CN220527204U CN220527204U CN202322250470.0U CN202322250470U CN220527204U CN 220527204 U CN220527204 U CN 220527204U CN 202322250470 U CN202322250470 U CN 202322250470U CN 220527204 U CN220527204 U CN 220527204U
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- end cover
- cover body
- clamping
- groove
- end cap
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- 238000007789 sealing Methods 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 abstract description 7
- 239000012790 adhesive layer Substances 0.000 abstract description 6
- 238000004891 communication Methods 0.000 abstract description 2
- 239000000306 component Substances 0.000 description 12
- 239000003292 glue Substances 0.000 description 10
- 239000008358 core component Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model discloses an end cover device and a base station antenna thereof, belonging to the technical field of communication equipment, wherein the device comprises an end cover body and a detachable fastener; at least four connecting plates perpendicular to the end cover body are arranged at any end of the end cover body; the connecting plate is provided with a positioning hole; the connecting plates are distributed on two sides of the end cover body in the width direction; the clamping piece is clamped with the positioning hole; the fastener is provided with a threaded hole; after the end cover body is arranged on the end face of the related shell assembly, only the corresponding locking piece is connected with the threaded hole, and the self-adhesive layer is arranged in the clamping groove, so that the waterproof performance can be ensured and the whole disassembly and assembly work can be completed quickly under the condition that the colloid is not required to be coated and removed; meanwhile, a proper buckle piece can be replaced according to the size of the locking piece, so that enough connecting contact surfaces are ensured to improve the overall connection strength; the problem that the strength and the waterproof performance of the existing end cover device are poor, and the disassembly and assembly are labor-consuming is effectively solved.
Description
Technical Field
The utility model belongs to the technical field of communication equipment, and particularly relates to an end cover device and a base station antenna thereof.
Background
Since the base station antenna needs to be used outdoors, there is a very high requirement for the waterproof performance of the device. In order to improve the overall waterproof capability, antenna elements such as a radiating unit of a base station antenna are generally arranged in a radome, and opening portions at two ends of the radome are sealed through an end cover body, so that the effect of isolating the external environment is achieved.
The sealing mode is generally to fill glue at the joint of the end cover body and the antenna housing, and after the end cover body and the antenna housing are mutually buckled to enable the glue to fully fill the gap between the end cover body and the antenna housing, a plurality of screws are arranged at the end face of the end cover body so as to achieve the effect of mutually connecting the end cover body and the antenna housing in a threaded manner; however, during actual use, the following defects still exist in the sealing mode:
1) The traditional glue filling process is complex in operation, glue is required to be filled at the joint of the end cover body and the antenna housing, and after the end cover body is attached to the antenna housing, corresponding external glue is required to be smeared at the joint of the end cover body and the antenna housing, so that long time is required to be consumed for drying and shaping of the glue; after the colloid is shaped, trimming and cleaning are further carried out on the outer colloid in order to keep the overall attractive appearance, so that the manufacturing working hours are greatly increased; meanwhile, because the colloid adopted by the existing glue filling process is usually silicone adhesive, when the antenna is required to be disassembled for repair due to the problem of rear end test, the disassembly is difficult, and the glue in the glue groove of the disassembled rear end cover body is inconvenient to clean, so that the disassembled end cover body cannot be reused basically, the repair time is greatly increased, and the additional cost for manufacturing the end cover body is also spent.
2) The current trend of antenna development tends to multifrequency antenna integration, leads to the terminal surface joint quantity of lower extreme cover body promptly and connects the jumper wire quantity of basic station to increase to make lower extreme cover body atress increase, along with the lapse of time, the inside colloid of foretell end cover body seal structure appears ageing condition that drops easily, even the terminal surface of end cover body is equipped with the screw with radome interconnect, but because the axis of screw is parallel to each other with the atress direction, so under the operating mode of lower extreme cover body atress increase, the probability that lower extreme cover body and radome take place the mutual separation also increases thereupon, and then indirectly weakens holistic waterproof performance, leads to the fact the influence to the normal operating of equipment.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: how to provide an end cap device capable of achieving efficient assembly and disassembly.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an end cover device comprises an end cover body and a detachable buckle piece;
at least four connecting plates perpendicular to the end cover body are arranged at any end of the end cover body;
the connecting plate is provided with a positioning hole;
the connecting plates are distributed on two sides of the end cover body in the width direction;
the clamping piece is clamped with the positioning hole;
the fastener is provided with a threaded hole.
Further, an avoidance groove is formed in the top of the clamping piece;
a clamping hook is arranged at one end of the avoidance groove, and the clamping hook is arranged towards the other end of the avoidance groove;
a gap is reserved between the clamping hook and the bottom of the avoidance groove;
when the clamping piece is locked with the connecting plate, the clamping hook is mutually buckled with the connecting plate.
Further, limit stops are arranged on two sides of the clamping piece;
the limit stop is positioned at one end of the clamping piece, provided with the clamping hook;
when the buckle piece is locked with the connecting plate, the limit stop block is in contact with the connecting plate.
Further, a clamping groove is formed in the edge of the end cover body;
the groove wall of the clamping groove is perpendicular to the end face of the end cover body, and the notch direction of the clamping groove is away from the end face of the end cover body;
the inner wall and the tank bottom of the clamping groove are respectively provided with an adhesive sticker layer.
Further, the connecting plate and the clamping groove are close to the groove wall inside the end cover body to form an integrated structure.
Further, a reinforcing rib is arranged between the connecting plate and the groove wall of the clamping groove, which is close to the inside of the end cover body.
Further, a base station antenna is provided, which comprises an antenna housing, a locking component and the end cover device;
the end cover device is clamped with the two ends of the antenna housing through the clamping grooves;
the antenna housing is provided with a through hole corresponding to the threaded hole;
the locking component penetrates through the through hole and is in threaded connection with the threaded hole.
Further, the locking assembly comprises a locking screw and a sealing ring arranged at the periphery of the locking screw;
when the locking component is locked with the buckle piece, the sealing ring is positioned between the locking screw and the antenna housing.
Further, the device also comprises a mounting plate;
the mounting plate is positioned in a space surrounded by the antenna housing and the end cover device;
the two ends of the mounting plate are respectively connected with the end cover devices at the two ends of the antenna housing.
Further, any one of the end cover devices is provided with a connecting port;
a wire through hole is formed in one end, close to the connecting port, of the mounting plate;
the wire through hole is arranged opposite to the connecting port.
The utility model has the beneficial effects that: the end cover device of the base station antenna has simple structure and convenient use, only needs to connect the corresponding locking piece with the threaded hole after the end surface of the related shell assembly is provided with the end cover body, and the adhesive layer is arranged in the clamping groove, so that the waterproof performance can be ensured and the whole disassembly and assembly work can be completed quickly under the condition that the adhesive is not required to be coated and removed; meanwhile, the proper buckle piece can be replaced on the connecting plate according to the specific size of the locking piece to be locked, so that the connecting area of the locking piece is ensured, and the overall connecting strength is improved.
Drawings
FIG. 1 is a schematic view of an end cap body according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a buckle and locking assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic view of an end cap assembly according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a base station antenna having the end cap device shown in fig. 3 according to an embodiment of the present utility model;
FIG. 5 is a left side cross-sectional view of FIG. 4;
FIG. 6 is an enlarged view at A of FIG. 5;
FIG. 7 is a schematic view of the structure of a mounting plate according to an embodiment of the present utility model;
description of the reference numerals:
1. an end cap body; 11. a connecting plate; 111. positioning holes; 12. a clamping groove; 13. reinforcing ribs;
2. a clip; 21. a threaded hole; 22. an avoidance groove; 23. a hook; 24. a limit stop;
3. an antenna housing;
4. a locking assembly; 41. locking a screw; 42. a seal ring;
5. a mounting plate; 51. a wire through hole;
6. and a connecting port.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
The most critical concept of the utility model is as follows: after the end cover body is arranged on the end face of the related shell assembly, the whole disassembly and assembly work can be rapidly completed under the condition that the colloid is not required to be coated and removed only by connecting the corresponding locking piece with the threaded hole and arranging the self-adhesive layer on the end cover; meanwhile, the proper clamping piece can be replaced according to the size of the locking piece, so that enough connecting contact surfaces are ensured to improve the overall connection strength.
Referring to fig. 1 to 7, the end cover device and the base station antenna thereof provided by the utility model comprise an end cover body 1 and a detachable fastener 2;
at least four connecting plates 11 perpendicular to the end cover body 1 are arranged at any end of the end cover body 1;
the connecting plate 11 is provided with a positioning hole 111;
the connecting plates 11 are distributed on two sides of the end cover body 1 in the width direction;
the clamping piece 2 is clamped with the positioning hole 111;
the fastener 2 is provided with a threaded hole 21.
From the above description, the beneficial effects of the utility model are as follows: after the end face of the related shell component is provided with the end cover body 1, the corresponding locking piece is only required to be connected with the threaded hole 21, so that the connection and disassembly work of the shell component and the end cover body 1 can be rapidly completed under the condition that glue does not need to be coated and removed; meanwhile, the proper buckling piece 2 can be replaced for the connecting plate 11 according to the size of the locking piece, so that enough connecting contact surface is ensured to improve the overall connecting strength, and the condition that the connecting strength is ensured only by thickening the connecting plate when the locking piece is directly connected with the connecting plate 11 in a threaded manner, so that the overall internal space is compressed is avoided; the device simple structure, convenient operation compares with current end cover device, not only ensures overall structure's intensity, still obviously improves the efficiency of assembly and dismantlement.
Further, the top of the fastener 2 is provided with a avoiding groove 22;
one end of the avoidance groove 22 is provided with a clamping hook 23, and the clamping hook 23 is arranged towards the other end of the avoidance groove 22;
a gap is reserved between the clamping hook 23 and the bottom of the avoidance groove 22;
when the clamping piece 2 is locked with the connecting plate 11, the clamping hook 23 is mutually buckled with the connecting plate 11.
Further, limit stops 24 are arranged on two sides of the buckling piece 2;
the limit stop 24 is positioned at one end of the fastener 2 provided with the hook 23;
when the buckling piece 2 is locked with the connecting plate 11, the limit stop 24 is abutted against the connecting plate 11.
As can be seen from the above description, the cooperation between the hook 23 and the limit stop 24 can prevent the clip 2 from moving in the length direction after the clip 2 and the connecting plate 11 are locked to each other, so that the clip 2 and the connecting plate 11 are separated from each other, and the overall connection strength is affected; meanwhile, the clamping hook 23 is only required to be pressed towards the bottom direction of the avoidance groove 22, so that the replacement of the clamping piece 2 can be completed rapidly.
Further, a clamping groove 12 is arranged at the edge of the end cover body 1;
the groove wall of the clamping groove 12 is perpendicular to the end face of the end cover body 1, and the notch direction of the clamping groove 12 is deviated from the end face of the end cover body 1;
the inner wall and the bottom of the clamping groove 12 are provided with adhesive layers.
As can be seen from the above description, the clamping groove 12 can not only seal the component to be sealed, but also limit the component to be sealed, so as to further avoid damaging the overall tightness due to the mutual displacement of the end cover body 1 and the component to be sealed, and further influence the waterproof effect.
Further, the connecting plate 11 and the clamping groove 12 are close to the groove wall inside the end cover body 1 to form an integral structure.
Further, a reinforcing rib 13 is arranged between the connecting plate 11 and the slot wall of the clamping slot 12, which is close to the inside of the end cover body 1.
As can be seen from the above description, the connecting plate 11 and the clamping groove 12 are close to the groove wall inside the end cover body 1 to form an integral structure, and the corresponding reinforcing ribs 13 are arranged between the connecting plate and the clamping groove, so that the deformation resistance of the end cover body 1 can be further improved, and the overall waterproof performance is indirectly ensured.
The utility model also provides a base station antenna, which comprises an antenna housing 3, a locking component 4 and an end cover device of any one of the above;
the end cover device is clamped with the two ends of the antenna housing 3 through clamping grooves 12;
the antenna housing 3 is provided with a through hole corresponding to the threaded hole 21;
the locking assembly 4 is threaded through the through hole with the threaded hole 21.
From the above description, the design further provides structural support for the base station antenna to be quickly assembled and disassembled and to ensure the overall waterproof performance.
Further, the locking assembly 4 comprises a locking screw 41 and a sealing ring 42 arranged at the periphery of the locking screw 41;
when the locking assembly 4 is locked with the fastener 2, the sealing ring 42 is positioned between the locking screw 41 and the antenna housing 3.
As can be seen from the above description, when the locking assembly 4 is locked with the fastener 2, the locking screw 41 presses the sealing ring 42 to deform the sealing ring 42, so that the gap between the locking screw 41 and the through hole can be further covered, and moisture is effectively prevented from flowing into the antenna housing 3 from the gap, and damage to internal components is further prevented.
Further, the base station antenna further comprises a mounting plate 5;
the mounting plate 5 is positioned in the space surrounded by the antenna housing 3 and the end cover device;
the two ends of the mounting plate 5 are respectively connected with end cover devices at the two ends of the antenna housing 3.
Further, any end cover device is provided with a connecting port 6;
a wire through hole 51 is formed in one end, close to the connecting port 6, of the mounting plate 5;
the via hole 51 is provided opposite to the connection port 6.
As is apparent from the above description, the design can facilitate fixing the core component of the base station antenna inside the antenna housing 3, and providing the corresponding via hole 51 at one end of the mounting board 5 can simplify the connection manner of the core component and the connection port 6, thereby ensuring that the core component can be reliably connected to the peripheral device.
The end cover device can be arranged in a cavity structure which is required to ensure the waterproof performance and improve the disassembly and assembly efficiency, is particularly suitable for accommodating the base station antenna, and can assist the waterproof work of the base station antenna.
Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows:
an end cover device comprises an end cover body 1 and a detachable buckle piece 2; four connecting plates 11 perpendicular to the end cover body 1 are arranged at any end of the end cover body 1; the connecting plate 11 is provided with a positioning hole 111; the connecting plates 11 are distributed on two sides of the end cover body 1 in the width direction; the clamping piece 2 is clamped with the positioning hole 111; the fastener 2 is provided with a threaded hole 21.
The top of the clamping piece 2 is provided with an avoidance groove 22; one end of the avoidance groove 22 is provided with a clamping hook 23, and the clamping hook 23 is arranged towards the other end of the avoidance groove 22; a gap is reserved between the clamping hook 23 and the bottom of the avoidance groove 22; when the clamping piece 2 is locked with the connecting plate 11, the clamping hook 23 is mutually buckled with the connecting plate 11; limit stops 24 are arranged on two sides of the buckling piece 2; the limit stop 24 is positioned at one end of the fastener 2 provided with the hook 23; when the buckling piece 2 is locked with the connecting plate 11, the limit stop 24 is abutted against the connecting plate 11.
The edge of the end cover body 1 is provided with a clamping groove 12; the groove wall of the clamping groove 12 is perpendicular to the end face of the end cover body 1, and the notch direction of the clamping groove 12 is deviated from the end face of the end cover body 1; the inner wall and the bottom of the clamping groove 12 are provided with adhesive layers (not shown in the figure); the connecting plate 11 and the clamping groove 12 are close to the groove wall in the end cover body 1 to form an integrated structure; reinforcing ribs 13 are arranged between the connecting plate 11 and the slot wall of the clamping slot 12, which is close to the inside of the end cover body 1.
Referring to fig. 4 to 7, a second embodiment of the present utility model is as follows:
a base station antenna, comprising an antenna housing 3, a locking component 4, a mounting plate 5 and an end cover device; the end cover device is clamped with the two ends of the antenna housing 3 through clamping grooves 12; the antenna housing 3 is provided with a through hole (not shown in the figure) corresponding to the threaded hole 21; the locking component 4 passes through the through hole and is in threaded connection with the threaded hole 21; the mounting plate 5 is positioned in the space surrounded by the antenna housing 3 and the end cover device; two ends of the mounting plate 5 are respectively connected with end cover devices at two ends of the antenna housing 3; a connecting port 6 is arranged on any end cover device; a wire through hole 51 is formed in one end, close to the connecting port 6, of the mounting plate 5; the via hole 51 is provided opposite to the connection port 6.
The locking assembly 4 comprises a locking screw 41 and a sealing ring 42 arranged at the periphery of the locking screw 41; when the locking assembly 4 is locked with the fastener 2, the sealing ring 42 is positioned between the locking screw 41 and the antenna housing 3.
The working principle of the utility model is as follows: firstly, roughly confirming the stress of the lower end cover under the working state according to the number of jumpers to be connected with the base station antenna before assembly, so as to select a fastener 2 and a locking screw 41 with the most suitable size; then, one end of the clamping piece 2 with the clamping hook 23 faces outwards, the clamping piece 2 is aligned with the positioning hole 111 on the connecting plate 11, the clamping piece 2 is pushed to the inside of the end cover body 1 until the clamping hook 23 is buckled with the connecting plate 11, at the moment, the limit stop 24 of the clamping piece 2 just abuts against the connecting plate 11, and the clamping piece 2 is stably fixed on the connecting plate 11 through the cooperation between the clamping hook 23 and the connecting plate 11; then, attaching an adhesive sticker layer on the inner wall and the bottom of the clamping groove 12, clamping the end cover body 1 with the connecting port 6 with one end of the antenna housing 3 through the clamping groove 12, and relatively extruding the end cover body 1 and the antenna housing 3 again after the through hole on the antenna housing 3 is aligned with the threaded hole 21 on the clamping piece 2, so that the adhesive sticker layer inside the clamping groove 12 is fully attached to the end cover and the antenna housing 3, thereby eliminating a gap between the two; next, the locking screw 41 with the sealing ring 42 is inserted through the through hole of the antenna housing 3, and the locking screw 41 is locked with the threaded hole 21 until the sealing ring 42 completely fills the gap between the locking screw 41 and the antenna housing 3; then, the mounting plate 5 is placed in the antenna housing 3, one end of the mounting plate 5 with the wire through hole 51 is locked on the end cover body 1 with the connecting port 6, meanwhile, the wire through hole 51 and the connecting port 6 correspond to each other, after the core component of the base station antenna is fixed on the mounting plate 5, the core component of the base station antenna is connected with the connecting port 6, and the core component of the base station antenna is convenient to be connected with peripheral equipment subsequently; finally, according to the assembly mode of the end cover body 1 and the antenna housing 3, the other end cover body 1 is fixed at the other end of the antenna housing 3, and meanwhile, the connecting wire of the peripheral equipment is abutted on the connecting port 6, so that the whole assembly work of the base station antenna can be completed.
In summary, the end cover device provided by the utility model has a simple overall structure and is convenient to operate; after the end cover body is arranged on the end face of the related shell assembly, only the corresponding locking piece is connected with the threaded hole, and the self-adhesive layer is arranged in the clamping groove, so that the waterproof performance can be ensured and the whole disassembly and assembly work can be completed quickly under the condition that the colloid is not required to be coated and removed; meanwhile, a proper buckle piece can be replaced according to the size of the locking piece, so that enough connecting contact surfaces are ensured to improve the overall connection strength; the defects that the strength and the waterproof performance of the whole structure are poor, and the assembly and the disassembly are labor-consuming are overcome.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. An end cap device is characterized by comprising an end cap body and a detachable fastener;
at least four connecting plates perpendicular to the end cover body are arranged at any end of the end cover body;
the connecting plate is provided with a positioning hole;
the connecting plates are distributed on two sides of the end cover body in the width direction;
the clamping piece is clamped with the positioning hole;
the fastener is provided with a threaded hole.
2. The end cap device of claim 1, wherein the top of the clasp is provided with a relief groove;
a clamping hook is arranged at one end of the avoidance groove, and the clamping hook is arranged towards the other end of the avoidance groove;
a gap is reserved between the clamping hook and the bottom of the avoidance groove;
when the clamping piece is locked with the connecting plate, the clamping hook is mutually buckled with the connecting plate.
3. The end cap device of claim 2, wherein the snap-fit feature is provided with positive stops on both sides;
the limit stop is positioned at one end of the clamping piece, provided with the clamping hook;
when the buckle piece is locked with the connecting plate, the limit stop block is in contact with the connecting plate.
4. The end cap device of claim 1, wherein a clamping groove is formed at the edge of the end cap body;
the groove wall of the clamping groove is perpendicular to the end face of the end cover body, and the notch direction of the clamping groove is away from the end face of the end cover body;
the inner wall and the tank bottom of the clamping groove are respectively provided with an adhesive sticker layer.
5. The end cap assembly of claim 4, wherein the web and the snap-fit groove are integrally formed adjacent to a groove wall of the interior of the end cap body.
6. The end cap assembly of claim 5, wherein a reinforcing rib is provided between the web and the slot wall of the clamping slot adjacent the interior of the end cap body.
7. A base station antenna comprising an antenna housing, a locking assembly and the end cap arrangement of any one of claims 1 to 6;
the end cover device is clamped with the two ends of the antenna housing through the clamping grooves;
the antenna housing is provided with a through hole corresponding to the threaded hole;
the locking component penetrates through the through hole and is in threaded connection with the threaded hole.
8. The base station antenna of claim 7, wherein the locking assembly comprises a locking screw and a sealing ring disposed on a periphery of the locking screw;
when the locking component is locked with the buckle piece, the sealing ring is positioned between the locking screw and the antenna housing.
9. The base station antenna of claim 7, further comprising a mounting plate;
the mounting plate is positioned in a space surrounded by the antenna housing and the end cover device;
the two ends of the mounting plate are respectively connected with the end cover devices at the two ends of the antenna housing.
10. The base station antenna according to claim 9, wherein a connection port is provided on any one of the end cap devices;
a wire through hole is formed in one end, close to the connecting port, of the mounting plate;
the wire through hole is arranged opposite to the connecting port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322250470.0U CN220527204U (en) | 2023-08-21 | 2023-08-21 | End cover device and base station antenna thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322250470.0U CN220527204U (en) | 2023-08-21 | 2023-08-21 | End cover device and base station antenna thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220527204U true CN220527204U (en) | 2024-02-23 |
Family
ID=89927555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322250470.0U Active CN220527204U (en) | 2023-08-21 | 2023-08-21 | End cover device and base station antenna thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220527204U (en) |
-
2023
- 2023-08-21 CN CN202322250470.0U patent/CN220527204U/en active Active
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