Hydraulic device and base station antenna installation device

Abstract

The present disclosure relates to the field of communication technologies, and particularly to a hydraulic device and a base station antenna installation device. The hydraulic device includes a housing for connecting to a base station antenna. A fuel storage chamber and a first oil chamber are arranged inside the housing. A first piston rod is arranged inside the first oil chamber, and a second end of the first piston rod extends to the outside of the housing for connecting to a holding rod. The fuel storage chamber is provided with an oil outlet for communicating with the first oil chamber, and a first control switch for controlling the opening and closing state of the oil outlet is arranged at the oil outlet. In the hydraulic device provided in this application, by arranging a fuel storage chamber and a first oil chamber inside the housing, and arranging an oil outlet for communicating the fuel storage chamber and the first oil chamber and a first control switch for controlling the opening or closing of the oil outlet, during the process of adjusting the base station antenna from the initial state to the downward inclination state, only the opening and closing state of the first control switch needs to be adjusted, the operation is simple, the difficulty of installing the base station antenna is reduced, and the safety of installing the base station antenna is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a hydraulic device and a base station antenna installation device. Background Art

[0002] As the transceiver part of a mobile communication system, a base station antenna plays an important role in switching signals between wired and wireless. The base station antenna realizes this switching by radiating electromagnetic waves into space and receiving electromagnetic waves from space. Therefore, in order to achieve better transmission and reception effects, the base station antenna needs to be erected at a certain height. Generally, the base station antenna is fixed on a cylindrical pole of a certain thickness, that is, an antenna mast, through a mechanical structure. In order to make the signal radiation within the coverage area of the serving cell and reduce interference to other co-frequency cells, it is necessary to make the main beam of the antenna form a certain inclination angle. When the inclination angle changes, the coverage characteristics of the target cell will also change accordingly. To adapt to the change in traffic volume and realize the optimization and adjustment of the network, the downward inclination angle of the base station antenna needs to be adjusted according to the actual situation.

[0003] In the prior art, the base station antenna and the mast are connected through an antenna bracket. The antenna bracket is a folding structure. Usually, by adjusting the opening angle of the antenna bracket, the downward inclination angle of the base station antenna is adjusted. The folding antenna bracket includes a plurality of locking screws. When adjusting the angle of the antenna bracket, all the locking screws need to be loosened. When the antenna bracket is unfolded to the required angle, each locking screw needs to be tightened in turn.

[0004] As can be seen from the above process, the operation of adjusting the downward inclination angle of the antenna in the prior art is very complicated. Moreover, the installation of the base station antenna is a high-altitude operation. Repeatedly tightening and loosening bolts increases the installation difficulty and danger of the base station antenna. Summary of the Invention

[0005] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a hydraulic device and a base station antenna installation device.

[0006] The present disclosure provides a hydraulic device applied to a base station antenna installation device, including a housing for connecting to a base station antenna. A hydraulic oil storage chamber and a first oil chamber are provided in the housing. Among them,

[0007] A first piston rod is provided in the first oil chamber. The first end of the first piston rod is slidably engaged with the first oil chamber, and the second end of the first piston rod extends outside the housing for connecting to the mast.

[0008] The hydraulic oil storage chamber is provided with an oil outlet for communicating with the rodless chamber of the first oil chamber, and a first control switch for controlling the opening and closing state of the oil outlet is provided at the oil outlet.

[0009] In the hydraulic device provided by the present disclosure, the housing is connected to the base station antenna, and the first piston rod is connected to the holding rod. Under the gravity of the base station antenna, the first piston rod has a tendency to move in a direction away from the first oil chamber. The oil storage chamber is provided with an oil outlet for communicating the oil storage chamber and the first oil chamber, and a first control switch is provided at the oil outlet. When adjusting the base station antenna to a downward tilt state, the first control switch is opened, the oil storage chamber is communicated with the first oil chamber, and the first piston rod moves in a direction away from the first oil chamber under the gravity of the base station antenna. The space of the rodless chamber of the first oil chamber becomes larger, and a force is generated in the first oil chamber to make the oil in the first oil chamber flow in the direction from the rodless chamber to the rod chamber. The oil in the oil storage chamber enters the first oil chamber through the oil outlet under the action of the force generated in the first oil chamber, thereby realizing the extension of the first piston rod and tilting the base station antenna downward. Then, the first control switch is closed to make the first oil chamber in a sealed state, thereby locking the first piston rod to keep the base station antenna in a downward tilt state.

[0010] In the above hydraulic device, by providing an oil storage chamber and a first oil chamber in the housing, and providing an oil outlet for communicating the oil storage chamber and the first oil chamber and a first control switch for controlling the opening or closing of the oil outlet on the oil storage chamber, when the first control switch is opened, the base station antenna can be tilted downward, and when the first control switch is locked, the position of the base station antenna is locked, thereby realizing the setting of the downward tilt state of the base station antenna. During the process of adjusting the base station antenna from the initial state to the downward tilt state, only the opening and closing state of the first control switch needs to be adjusted, and the operation is simple, thereby reducing the difficulty of installing the base station antenna and improving the safety of installing the base station antenna.

[0011] Optionally, a second oil chamber and a connecting pipeline are further provided in the housing; wherein,

[0012] A second piston rod is provided in the second oil chamber, the second piston rod is slidably matched with the second oil chamber, and the rodless chamber of the second oil chamber is communicated with the connecting pipeline;

[0013] The connecting pipeline is respectively communicated with the oil storage chamber, the first oil chamber and the second oil chamber, and a second control switch for controlling the on-off of the connecting pipeline is provided in the connecting pipeline.

[0014] Optionally, the connecting pipeline includes a first branch provided between the first oil chamber and the second oil chamber and a second branch provided between the oil return port of the oil storage chamber and the first oil chamber, and the first branch and the second branch are communicated;

[0015] The second control switch includes a first sub-switch and a second sub-switch, the first sub-switch is provided on the first branch, and the second sub-switch is provided on the second branch.

[0016] Optionally, a first valve body is provided between the first oil chamber and the connecting pipeline, and the first valve body is unidirectionally conductive along a direction from the first oil chamber to the connecting pipeline.

[0017] Optionally, a second valve body is provided at the oil return port of the oil storage chamber, and the second valve body is unidirectionally conductive along the direction of the connecting pipeline pointing to the oil storage chamber.

[0018] Optionally, an operating assembly is provided on the outer side of the housing, and the operating assembly is connected to the second piston rod to control the reciprocating motion of the second piston rod along the axial direction of the second oil chamber.

[0019] Optionally, the operating assembly includes a rack and a gear assembly for cooperating with the rack, the rack is slidably connected to the housing, and one end of the rack is connected to the second piston rod.

[0020] Optionally, the gear assembly comprises a gear and a handheld portion for rotating the gear.

[0021] Optionally, an air cavity for communicating with the outside is provided on a side of the oil storage cavity away from the oil return port of the oil storage cavity, and a sealing member is provided between the air cavity and the oil storage cavity.

[0022] The present disclosure also provides a base station antenna installation device, comprising the above-mentioned hydraulic device, a bracket for connecting the hydraulic device and the base station antenna, and a connecting piece for connecting the hydraulic device and a holding pole; wherein:

[0023] The bracket is rotatably connected to the housing of the hydraulic device, and the connecting piece is rotatably connected to the first piston rod of the hydraulic device.

[0024] Optionally, the bracket includes a bracket body, and the first connecting parts for connecting to the base station antenna are provided at two opposite ends of the bracket body, and a second connecting part is provided in the middle part of the bracket body, and the extension direction of the second connecting part is perpendicular to the extension direction of the bracket body, and the second connecting part is connected to the housing of the hydraulic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 Structural schematic diagram of the base station antenna installation device described in the embodiments of the present disclosure;

[0028] Figure 2 Cross-sectional view of the hydraulic device described in the embodiments of the present disclosure;

[0029] Figure 3 Schematic diagram of the first piston rod extending in the hydraulic device described in the embodiments of the present disclosure;

[0030] Figure 4 Schematic diagram of the second piston rod retracting in the hydraulic device described in the embodiments of the present disclosure;

[0031] Figure 5 Schematic diagram of the first piston rod retracting in the hydraulic device described in the embodiments of the present disclosure;

[0032] Figure 6 Structural schematic diagram of the hydraulic device described in the embodiments of the present disclosure;

[0033] Figure 7 Partial structural schematic diagram of the base station antenna installation device described in the embodiments of the present disclosure.

[0034] Wherein, 1 - housing; 11 - first connection hole; 12 - ventilation hole; 2 - oil storage chamber; 21 - oil outlet; 22 - first control switch; 3 - first oil chamber; 31 - first piston rod; 311 - second connection hole; 4 - second oil chamber; 41 - second piston rod; 5 - connecting pipeline; 51 - second control switch; 511 - first sub-switch; 512 - second sub-switch; 52 - first branch; 53 - second branch; 6 - first valve body; 7 - second valve body; 8 - operating assembly; 81 - rack; 82 - gear assembly; 821 - gear; 822 - hand-held part; 9 - air chamber; 91 - seal; 10 - hydraulic device; 20 - base station antenna; 30 - pole; 40 - bracket; 401 - bracket body; 402 - first connection part; 403 - second connection part; 50 - connecting piece. Detailed implementation manners

[0035] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0036] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0037] In the prior art, the base station antenna is connected to the mast through an antenna bracket. The antenna bracket is a folding structure. Usually, by adjusting the opening angle of the antenna bracket, the tilting angle of the base station antenna is adjusted. The folding antenna bracket includes a plurality of locking screws. When adjusting the angle of the antenna bracket, all the locking screws need to be loosened. When the antenna bracket is unfolded to the required angle, each locking screw needs to be tightened in sequence.

[0038] As can be seen from the above process, the operation of adjusting the tilting angle of the antenna in the prior art is very complicated. Moreover, the installation of the base station antenna is a high-altitude operation. Repeatedly tightening and loosening the bolts makes the installation of the base station antenna difficult and dangerous.

[0039] In view of this, the embodiments of the present application provide a hydraulic device and a base station antenna installation device, which can solve the above technical problems.

[0040] Figure 1 It is a schematic structural diagram of the base station antenna installation device described in the embodiments of the present disclosure. Figure 2 It is a sectional view of the hydraulic device described in the embodiments of the present disclosure. As Figures 1 to 2 shown, the present application provides a hydraulic device 10, which includes a housing 1 for connecting to the base station antenna 20. A fuel storage chamber 2 and a first oil chamber 3 are arranged in the housing 1. Among them, a first piston rod 31 is arranged in the first oil chamber 3. The first end of the first piston rod 31 is slidably matched with the first oil chamber 3, and the second end of the first piston rod 31 extends to the outside of the housing 1 for connecting to the mast 30. The fuel storage chamber 2 is provided with an oil outlet 21 for communicating with the rodless chamber of the first oil chamber 3, and a first control switch 22 for controlling the opening and closing state of the oil outlet 21 is arranged at the oil outlet 21.

[0041] Figure 3 It is a schematic diagram of the first piston rod 31 extending in the hydraulic device described in the embodiments of the present disclosure. As Figure 3As shown in the figure, in the above hydraulic device, the housing 1 is connected to the base station antenna, and the first piston rod 31 is connected to the mast 30. Under the gravitational force of the base station antenna, the first piston rod 31 has a tendency to move away from the first oil chamber 3. The oil storage chamber 2 is provided with an oil outlet 21 for communicating the oil storage chamber 2 and the first oil chamber 3, and a first control switch 22 is provided at the oil outlet 21. When adjusting the base station antenna to the downward tilt state, the first control switch 22 is opened, the oil storage chamber 2 is communicated with the first oil chamber 3, and the first piston rod 31 moves away from the first oil chamber 3 under the gravitational force of the base station antenna. The space of the rodless chamber of the first oil chamber 3 becomes larger, and a force is generated in the first oil chamber 3 to make the oil in the first oil chamber 3 flow along the direction from the rodless chamber to the rod chamber. The oil in the oil storage chamber 2 enters the first oil chamber 3 through the oil outlet 21 under the action of the force generated in the first oil chamber 3, thereby realizing the extension of the first piston rod 31 and tilting the base station antenna downward. Then, the first control switch 22 is closed to make the first oil chamber 3 in a closed state, thereby locking the first piston rod 31 to keep the base station antenna in the downward tilt state.

[0042] In the above hydraulic device, by providing the oil storage chamber 2 and the first oil chamber 3 in the housing 1, and providing an oil outlet 21 for communicating the oil storage chamber 2 and the first oil chamber 3 and a first control switch 22 for controlling the opening or closing of the oil outlet 21 on the oil storage chamber 2, when the first control switch 22 is opened, the base station antenna can be tilted downward, and when the first control switch 22 is locked, the position of the base station antenna is locked, thereby realizing the setting of the downward tilt state of the base station antenna. During the process of adjusting the base station antenna from the initial state to the downward tilt state, only the opening and closing state of the first control switch 22 needs to be adjusted, and the operation is simple, thereby reducing the installation difficulty of the base station antenna and improving the installation safety of the base station antenna.

[0043] Figure 4 It is a schematic diagram of the retraction of the second piston rod 41 in the hydraulic device described in the embodiment of the present disclosure. Figure 5 It is a schematic diagram of the retraction of the first piston rod 31 in the hydraulic device described in the embodiment of the present disclosure. As Figures 4 to 5 shown, when the base station antenna is in the downward tilt state, if it is necessary to reduce the downward tilt angle of the base station antenna or adjust the downward tilt angle of the base station antenna to zero to retract the base station antenna, in some embodiments, a second oil chamber 4 and a connecting pipeline 5 may be provided in the housing 1; wherein, a second piston rod 41 is provided in the second oil chamber 4, the second piston rod 41 is slidably engaged with the second oil chamber 4, and the rodless chamber of the second oil chamber 4 is communicated with the connecting pipeline 5; the connecting pipeline 5 is respectively communicated with the oil storage chamber 2, the first oil chamber 3 and the second oil chamber 4, and a second control switch 51 for controlling the on-off of the connecting pipeline 5 is provided in the connecting pipeline 5.

[0044] As Figure 4As shown, when reducing the downward tilt angle of the base station antenna, the second control switch 51 is turned on to keep the connection pipeline 5 unobstructed, and the second piston rod 41 moves towards the connection pipeline 5 to press the hydraulic oil in the second oil chamber 4 out of the second oil chamber 4 and into the oil storage chamber 2 through the connection pipeline 5, as Figure 5 shown. Then, the second piston rod 41 is moved away from the connection pipe to generate a force in the second oil chamber 4 pointing from the connection pipeline 5 towards the second piston rod 41. Under the above force, the first oil chamber 3 and the connection pipeline 5 are connected, so that the hydraulic oil in the first oil chamber 3 flows out of the first oil chamber 3, flows through the connection pipeline 5 to the second oil chamber 4, thereby causing the oil level in the first oil chamber 3 to drop. The first piston rod 31 moves towards the connection pipeline 5 as the oil level in the first oil chamber 3 drops, so that the first piston rod 31 contracts, realizing the reduction of the downward tilt angle of the base station antenna. Or, as Figure 5 shown, first move the second piston rod 41 away from the connection pipe to generate a force in the second oil chamber 4 pointing from the connection pipeline 5 towards the second piston rod 41. Under the above force, the first oil chamber 3 and the connection pipeline 5 are connected, so that the hydraulic oil in the first oil chamber 3 flows out of the first oil chamber 3, flows through the connection pipeline 5 to the second oil chamber 4, thereby causing the oil level in the first oil chamber 3 to drop. The first piston rod 31 moves towards the connection pipeline 5 as the oil level in the first oil chamber 3 drops. Then, as Figure 4 shown, move the second piston rod 41 towards the connection pipeline 5 to press the hydraulic oil in the second oil chamber 4 out of the second oil chamber 4 and into the oil storage chamber 2 through the connection pipeline 5 to realize the contraction of the first piston rod 31 and reduce the downward tilt angle of the base station antenna.

[0045] When the angle of the base station antenna is reduced to a preset angle, the second control switch 51 is turned off to block the connection pipeline 5 and seal the first oil chamber 3, so that the first piston rod 31 is in a locked state to lock the position of the base station antenna.

[0046] During the process of reducing the downward tilt angle of the base station antenna, only the opening and closing state of the second control switch 51 needs to be adjusted, and the operation is simple. That is to say, during the adjustment of the downward tilt angle of the base station antenna, by adjusting the opening and closing states of the first control switch 22 and the second control switch 51, the adjustment of increasing or decreasing the downward tilt angle of the base station antenna can be realized. The operation is simple, the installation difficulty of the base station antenna is reduced, and thus the installation safety of the base station antenna is improved.

[0047] The above-mentioned first oil chamber 3, second oil chamber 4, oil storage chamber 2 and connection pipeline 5 are all filled with hydraulic oil.

[0048] To ensure that when the second piston rod 41 moves away from the connecting pipeline 5, the first oil chamber 3 communicates with the connecting pipeline 5 and the oil storage chamber 2 does not communicate with the connecting pipeline 5, a first valve body 6 is provided between the first oil chamber 3 and the connecting pipeline 5. The first valve body 6 conducts unidirectionally along the direction from the first oil chamber 3 to the connecting pipeline 5, and a second valve body 7 is provided at the oil return port of the oil storage chamber 2. The second valve body 7 conducts unidirectionally along the direction from the connecting pipeline 5 to the oil storage chamber 2.

[0049] When the second piston rod 41 moves away from the connecting pipeline 5, a force is generated in the second oil chamber 4 in the direction from the connecting pipeline 5 to the second piston rod 41. Under this force, since the first valve body 6 conducts unidirectionally along the direction from the first oil chamber 3 to the connecting pipeline 5, the first valve body 6 opens; since the second valve body 7 conducts unidirectionally along the direction from the connecting pipeline 5 to the oil storage chamber 2, the second valve body 7 cannot open, thus ensuring that the oil in the first oil chamber 3 flows into the second oil chamber 4.

[0050] Moreover, when the second piston rod 41 moves towards the connecting pipeline 5, the oil in the second oil chamber 4 is pressed out of the second oil chamber 4, generating a force from the connecting pipeline 5 to the first oil chamber 3 and a force from the connecting pipeline 5 to the oil storage chamber 2. Since the first valve body 6 conducts unidirectionally along the direction from the first oil chamber 3 to the connecting pipeline 5, under the force, the first valve body 6 cannot open. Since the second valve body 7 conducts unidirectionally along the direction from the connecting pipeline 5 to the oil storage chamber 2, under the force, the second valve body 7 conducts, allowing the oil to enter the oil storage chamber 2, thereby realizing the adjustment of the extension amount of the first piston rod 31 and further realizing the adjustment of the tilting angle of the base station antenna.

[0051] In some embodiments, the connecting pipeline 5 includes a first branch 52 provided between the first oil chamber 3 and the second oil chamber 4 and a second branch 53 provided between the oil return port of the oil storage chamber 2 and the first oil chamber 3. The first branch 52 and the second branch 53 are connected; the second control switch 51 includes a first sub-switch 511 and a second sub-switch 512. The first sub-switch 511 is provided on the first branch 52, and the second sub-switch 512 is provided on the second branch 53.

[0052] The above-mentioned first sub-switch 511 is arranged on the first branch 52 to control the on-off state of the first branch 52, and the second sub-switch 512 is arranged on the second branch 53 to control the on-off state of the second branch 53. When an external force acts on the first piston rod 31, causing the first piston rod 31 to have a tendency to move into the first oil chamber 3, the pressure in the first oil chamber 3 increases. When the pressure increases to open the first valve body 6, the first oil chamber 3 communicates with the connecting pipeline 5. Setting the first sub-switch 511 can effectively prevent the first oil chamber 3 from communicating with the second oil chamber 4 through the first branch 52, and the second sub-switch 512 can effectively prevent the first oil chamber 3 from communicating with the oil storage chamber 2 through the second branch 53, preventing the first piston rod 31 from moving into the first oil chamber 3 and ensuring the stability of the downward tilt state of the base station antenna.

[0053] Figure 6 is a schematic structural diagram of the hydraulic device according to an embodiment of the present disclosure. As Figure 6 shown, in some embodiments, an operation component 8 is arranged on the outer side of the housing 1. The operation component 8 is connected to the second piston rod 41 to control the reciprocating movement of the second piston rod 41 along the axis direction of the second oil chamber 4.

[0054] Specifically, the operation component 8 includes a rack 81 and a gear component 82 for cooperating with the rack 81. The rack 81 is slidably connected to the housing 1, and one end of the rack 81 is connected to the second piston rod 41.

[0055] In the above-mentioned operation component 8, the gear component 82 cooperates with the rack 81. The rack 81 is arranged on the outer side of the housing 1 and is slidably connected to the housing 1. The end of the rack 81 facing the second end of the first piston rod 31 is connected to the second piston rod 41. When the gear component 82 rotates, the rack 81 slides along the direction parallel to the axis of the second piston rod 41, so that when the rack 81 slides, it drives the second piston rod 41 to move synchronously.

[0056] Specifically, the gear component 82 includes a gear 821, a hand-held part 822 for rotating the gear 821, and a connecting bracket for connecting the gear 821 to the housing 1.

[0057] In this embodiment, one end of the connecting bracket is connected to the housing 1, and the other end is rotatably connected to the gear 821 to realize the positioning of the gear 821 and keep the gear 821 meshed with the rack 81. In order to facilitate rotating the gear 821 to move the rack 81, a hand-held part 822 is arranged at one end of the rack 81. The operator operates the hand-held part 822 to rotate the gear 821, so that the rack 81 moves, driving the second piston rod 41 to reciprocate.

[0058] Therefore, in the embodiment of the present application, when adjusting the downtilt angle of the base station antenna, the first control switch 22 can be turned on first, and the downtilt angle of the base station antenna is expanded to the maximum under the gravity of the base station antenna. When the base station antenna stops moving, the first control switch 22 is turned off, thereby completing the expansion process of the base station antenna. In the process of increasing the downtilt angle of the base station antenna, the operator only needs to turn on or off the first control switch 22, which is simple to operate. Then, the second piston rod 41 is controlled to move by the operating component 8, and the oil in the first oil chamber 3 is sucked into the second oil chamber 4 to reduce the downtilt angle of the base station antenna. That is to say, in the process of reducing the downtilt angle of the base station antenna, the second control switch 51 needs to be turned on first, and then the movement of the rack 81 is controlled by the handheld part 822, thereby controlling the movement of the second piston rod 41, and finally the second control switch 51 is turned off to complete the adjustment of the downtilt angle of the base station antenna. In the process of adjusting the base station antenna, in each step, the operator only needs to complete one action, which effectively reduces the difficulty of adjusting the angle of the base station antenna and improves the safety limit of the base station antenna installation.

[0059] Furthermore, the movement of the second piston rod 41 is controlled by the operating assembly 8, which makes the operation more convenient for the operator, saving time and effort. In addition, through the cooperation of the gear 821 and the rack 81, the position of the second piston rod 41 can be fine-tuned, thereby fine-tuning the position of the first piston rod 31, so that the adjusted downward tilt angle of the base station antenna is more accurate.

[0060] like Figure 2 As shown, in some embodiments, an air cavity 9 for communicating with the outside is provided on the side of the oil storage cavity 2 away from its oil return port, and a sealing member 91 is provided between the air cavity 9 and the oil storage cavity 2 .

[0061] During use of the above-mentioned device, since the first piston rod 31 is connected to the holding rod 30, the direction of gravity on the oil in the oil storage chamber 2 is the direction in which the oil return port of the oil storage chamber 2 points to the air chamber 9. By setting a seal 91, the oil in the oil storage chamber 2 can be effectively prevented from flowing in a direction away from the oil return port, thereby preventing outside air from entering the oil storage chamber 2.

[0062] like Figure 6 As shown, specifically, a vent hole 12 is provided on the shell 1 and is connected to the air cavity 9. A vent membrane is provided at the vent hole 12. The vent membrane is an oil-proof vent membrane, which can effectively prevent the oil in the oil storage cavity 2 from leaking through the vent membrane, while ensuring the connection between the air cavity 9 and the outside world.

[0063] Figure 7 FIG. 1 is a partial structural diagram of the base station antenna installation device according to an embodiment of the present disclosure. Figures 1 to 7As shown, an embodiment of the present application also provides a base station antenna installation device, including the above-mentioned hydraulic device 10, a bracket 40 for connecting the hydraulic device 10 and the base station antenna 20, and a connecting piece 50 for connecting the hydraulic device 10 and the holding rod 30; wherein the bracket 40 is rotatably connected to the housing 1 of the hydraulic device 10, and the connecting piece 50 is rotatably connected to the first piston rod 31 of the hydraulic device 10.

[0064] In the above-mentioned base station antenna installation device, by connecting the shell 1 of the hydraulic device 10 to the base station antenna 20 and connecting the first piston rod 31 to the holding rod 30, the hydraulic device 10 can be extended and retracted under the gravity of the base station antenna 20, thereby adjusting the angle of the base station antenna 20.

[0065] In some embodiments, the bracket 40 includes a bracket body 401, and the first connecting parts 402 for connecting to the base station antenna 20 are provided at the opposite ends of the bracket body 401, and the second connecting part 403 is provided in the middle part of the bracket body 401. The extension direction of the second connecting part 403 is perpendicular to the extension direction of the bracket body 401, and the second connecting part 403 is connected to the shell 1 of the hydraulic device 10.

[0066] Specifically, two second connecting parts 403 are provided in the middle part of the bracket body 401, a first connecting shaft is provided between the two second connecting parts 403, and the first connecting shaft is connected to the second connecting part 403, and a mounting part is provided on the side of the shell 1 away from the first piston rod 31, and a first connecting hole 11 is provided at the end of the mounting part, and the first connecting hole 11 is sleeved on the outside of the first connecting shaft and is rotatably connected to the first connecting shaft.

[0067] Specifically, the connecting member 50 includes a first connecting member and a second connecting member, a second connecting shaft is arranged between the first connecting member and the second connecting member, the second connecting shaft is respectively connected to the first connecting member and the second connecting member, a second connecting hole 311 is arranged at the second end of the first piston rod 31, and the second connecting hole 311 of the hydraulic device 10 is sleeved on the outside of the second connecting shaft and is rotatably connected to the second connecting shaft.

[0068] The first connection hole 11 is rotatably connected to the second connection portion 403 , and the second connection hole 311 is rotatably connected to the connection member 50 , so that the downward tilt angle of the base station antenna 20 is easily adjusted.

[0069] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0070] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but rather will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic device, applied to a base station antenna installation device, characterized in that, It includes a housing (1) for connecting with a base station antenna (20). An oil storage chamber (2) and a first oil chamber (3) are arranged inside the housing (1). Among them, a first piston rod (31) is arranged inside the first oil chamber (3). The first end of the first piston rod (31) is in sliding fit with the first oil chamber (3), and the second end of the first piston rod (31) extends to the outside of the housing (1) for connecting with a holding rod (30); the oil storage chamber (2) is provided with an oil outlet (21) for communicating with the rodless chamber of the first oil chamber (3), and a first control switch (22) for controlling the opening and closing state of the oil outlet (21) is arranged at the oil outlet (21); a second oil chamber (4) and a connecting pipeline (5) are further arranged inside the housing (1); among them, a second piston rod (41) is arranged inside the second oil chamber (4). The second piston rod (41) is in sliding fit with the second oil chamber (4), and the rodless chamber of the second oil chamber (4) is communicated with the connecting pipeline (5); the connecting pipeline (5) is communicated with the oil storage chamber (2), the first oil chamber (3) and the second oil chamber (4) respectively, and a second control switch (51) for controlling the on-off state of the connecting pipeline (5) is arranged in the connecting pipeline (5); an operation component (8) is arranged on the outside of the housing (1). The operation component (8) is connected with the second piston rod (41) to control the reciprocating movement of the second piston rod (41) along the axis direction of the second oil chamber (4).

2. The hydraulic device according to claim 1, characterized in that, The connecting pipeline (5) includes a first branch (52) arranged between the first oil chamber (3) and the second oil chamber (4) and a second branch (53) arranged between the oil return port of the oil storage chamber (2) and the first oil chamber (3). The first branch (52) and the second branch (53) are communicated; the second control switch (51) includes a first sub-switch (511) and a second sub-switch (512). The first sub-switch (511) is arranged on the first branch (52), and the second sub-switch (512) is arranged on the second branch (53).

3. The hydraulic device according to claim 1, characterized in that, A first valve body (6) is arranged between the first oil chamber (3) and the connecting pipeline (5). The first valve body (6) conducts unidirectionally along the direction from the first oil chamber (3) to the connecting pipeline (5).

4. The hydraulic device according to claim 1, characterized in that A second valve body (7) is arranged at the oil return port of the oil storage chamber (2). The second valve body (7) conducts unidirectionally along the direction from the connecting pipeline (5) to the oil storage chamber (2).

5. The hydraulic device according to claim 1, characterized in that, The operation component (8) includes a rack (81) and a gear assembly (82) for cooperating with the rack (81). The rack (81) is slidably connected with the housing (1), and one end of the rack (81) is connected with the second piston rod (41).

6. The hydraulic device according to claim 5, characterized in that, The gear assembly (82) includes a gear and a hand-held part for rotating the gear.

7. The hydraulic device according to claim 1, characterized in that, On one side of the oil storage chamber (2) facing away from the oil return port of the oil storage chamber (2), an air chamber (9) for communicating with the outside is provided, and a seal (91) is provided between the air chamber (9) and the oil storage chamber (2).

8. An installation device for a base station antenna, characterized in that, It includes the hydraulic device (10) according to any one of claims 1-7, a bracket (40) for connecting the hydraulic device (10) and the base station antenna (20), and a connecting member (50) for connecting the hydraulic device (10) and the pole (30); wherein, The bracket (40) is rotatably connected to the housing (1) of the hydraulic device (10), and the connecting member (50) is rotatably connected to the first piston rod (31) of the hydraulic device (10).

9. The base station antenna installation device according to claim 8, characterized in that The bracket (40) includes a bracket body (401), and first connecting portions (402) for connecting to the base station antenna (20) are provided at both opposite ends of the bracket body (401). A second connecting portion (403) is provided in the middle of the bracket body (401). The extending direction of the second connecting portion (403) is perpendicular to the extending direction of the bracket body (401), and the second connecting portion (403) is connected to the housing (1) of the hydraulic device (10).

Images