Wall-mounted frequency-selecting repeater

Abstract

The utility model relates to the technical field of repeaters, and provides a wall-mounted frequency-selecting repeater, which comprises a frequency-selecting repeater main body and a mounting plate. According to the utility model, the second movable rod and the second movable block slide towards one side, at the moment, the round rod is separated from the interior of the second open slot, the connecting strip is synchronously driven to slide downwards along the outer surface of the guide rod under the action of the gravity of the frequency-selecting repeater main body, and under the reset acting force of the buffer spring, the connecting strip is driven to slide downwards. The downward moving speed of the frequency-selecting repeater main body can be slowed down, then the frequency-selecting repeater main body is stably held by two hands and pulled towards one side, and the round rod is taken out from the interior of the first opening groove, so that the dismounting height of the frequency-selecting repeater main body can be reduced firstly, and then the frequency-selecting repeater main body can be dismounted. Therefore, the frequency-selecting repeater main body is prevented from falling off from a relatively high place due to the fact that the frequency-selecting repeater main body is not held stably, so that the frequency-selecting repeater main body is prevented from being broken, and the service life of the frequency-selecting repeater main body is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of repeater technology, and in particular to a wall-mounted frequency selective repeater. Background Technology

[0002] Frequency-selective repeaters are relay devices in wireless communication systems, a subtype of repeater. They receive base station signals via a main antenna, perform down-conversion, intermediate frequency (IF) selection, and up-conversion to amplify the radio frequency (RF) signal at the same frequency, before secondary radiation by a repeater antenna. This device can precisely control the frequency band, suppress out-of-band interference, and supports communication standards such as GSM and CDMA. Its core advantages lie in its flexible deployment and simple installation, enabling low-cost expansion of network capacity without building new base stations. It solves signal blind spots or weak signal areas in complex scenarios such as shopping malls, tunnels, and highways, improving communication quality.

[0003] In the prior art, for example, Chinese Patent No. CN202120555985.X discloses a directional wall-mounted mobile phone control repeater, including a repeater body; a time-controlled switch is installed at the bottom center of the repeater body, and a buffer mechanism is installed at the top and bottom center of the inner surface of the repeater body. A connecting rod is welded to one side of the buffer mechanism, and an installation mechanism is installed between the outer ends of the connecting rod through a fixing mechanism. This utility model is equipped with a buffer mechanism. When there is a violent vibration in the external environment, the vibration is transmitted to the buffer mechanism, and then the buffer spring inside the buffer mechanism can effectively buffer the vibration, avoiding the vibration being transmitted too violently to the repeater body and causing damage to the electrical components inside the repeater body.

[0004] While the above solution has the advantages mentioned above, it also has disadvantages. Although the mounting plate can be installed on the wall using expansion bolts, and the second insert rod can be moved outward by pulling the pull ring, then the connecting rod can be inserted into the recessed frame. After releasing the pull ring, the second insert rod is pushed into the through hole under the action of the return spring, thus fixing the connecting rod to the recessed frame and completing the mounting of the repeater body, the repeater has a certain weight and is installed at a certain height. When the repeater needs to be disassembled for maintenance, it needs to be disassembled. During disassembly, the repeater may not be held securely and may fall from a relatively high place, which may damage the repeater and reduce its service life. Utility Model Content

[0005] The purpose of the present utility model is to solve the problems existing in the prior art. Although it can install the mounting plate on the wall through expansion bolts, hold the pull ring and pull the second insertion rod to move outward, then insert the connecting rod into the concave shelf, and then release the pull ring. Under the action of the reset spring, the second insertion rod is pushed into the through hole, so that the connecting rod is fixedly connected to the concave shelf to complete the hanging of the repeater main body. However, due to the certain weight of the repeater and it is installed at a certain height position, when the repeater needs to be disassembled and repaired, it needs to be disassembled. When disassembling the repeater, it may fall from a relatively high place because it is not held firmly, which may cause the repeater to be damaged, and further reduce the service life of the repeater.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions: A wall-mounted frequency selective repeater, including: a frequency selective repeater main body and a mounting plate, the frequency selective repeater main body is arranged on one side of the mounting plate, and further includes:

[0007] Two middle-shaped grooves are symmetrically opened on one side of the mounting plate. A middle-shaped strip is slidably connected inside the middle-shaped groove. One side of the middle-shaped strip is fixedly connected with a connecting plate. One side of the mounting plate near the bottom is fixedly connected with a fixing strip. The top of the fixing strip is equidistantly fixedly connected with a plurality of guide rods. A connecting strip is slidably connected to the outer surface of the plurality of guide rods. The opposite sides of the connecting strip are respectively fixedly connected to the opposite sides near the top of the two connecting plates. A buffer spring is arranged on the outer surface of the guide rod. Two opening grooves one are symmetrically opened on one side of the connecting plate. One side of the inner wall of the opening groove one is slidably connected with a movable block one. The opposite sides of the connecting plate are both slidably connected with a movable rod one. The movable rod one is fixedly connected with the movable block one. A reset spring one is arranged on the outer surface of the movable rod one. Four corners on one side of the frequency selective repeater main body are all fixedly connected with mounting blocks. The opposite sides of the two mounting blocks are fixedly connected with a round rod. The outer surface of the round rod is movably connected inside the two opening grooves one.

[0008] Preferably, one ends of the plurality of buffer springs are equidistantly fixedly connected to the top of the fixing strip, and the other ends of the plurality of buffer springs are equidistantly fixedly connected to the bottom of the connecting strip. One ends of the two reset springs one are respectively fixedly connected to the opposite sides of the connecting plate, and the other ends of the two reset springs one are respectively fixedly connected to one ends of the two movable rods one.

[0009] Preferably, two fixing plates are symmetrically fixedly connected to one side of the mounting plate. A straight groove opening is opened on one side of the fixing plate. A sliding rod is fixedly connected to the other side of the connecting plate. The outer surface of the sliding rod is slidably connected inside the straight groove opening.

[0010] Preferably, two opening slots are symmetrically opened on the other side of the fixing plate. A movable block is slidably connected to one side of the inner wall of the opening slot. Movable rods are slidably connected to the opposite side of the fixing plate. The movable rods are fixedly connected to the movable blocks.

[0011] Preferably, the outer surface of the movable rod 2 is provided with a return spring 2, one end of the two return springs 2 are respectively fixedly connected to the opposite side of the fixed plate, and the other end of the two return springs 2 are respectively fixedly connected to one end of the two movable rods 2.

[0012] Preferably, each of the opposite sides of the movable block one is provided with an inclined surface one, and one side of the movable block two is provided with an inclined surface two. The outer surface of the round rod is symmetrically fixed with multiple limiting rings in pairs.

[0013] Preferably, a shaped ventilation frame is fixedly connected to one side of the main body of the frequency selective repeater. Two cooling fans are symmetrically fixedly connected to the bottom of the shaped ventilation frame. Multiple air outlets are equidistantly opened at the bottom of the shaped ventilation frame away from the cooling fans, and the multiple air outlets are all connected to the interior of the shaped ventilation frame.

[0014] Preferably, multiple heat dissipation fins are fixedly connected at equal intervals on the other side of the frequency selective repeater body, and a receiving antenna and a transmitting antenna are provided at the bottom of the frequency selective repeater body.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] This invention involves sliding the second movable rod and the second movable block to one side, causing the round rod to disengage from the inside of the second opening slot. Under the weight of the frequency selector repeater body, the connecting plate drives the T-shaped strip to slide downwards along the inside of the T-shaped slot, simultaneously driving the connecting strip to slide downwards along the outer surface of the guide rod. The restoring force of the buffer spring slows down the downward movement of the frequency selector repeater body. Then, by firmly grasping the frequency selector repeater body with both hands and pulling it to one side, the round rod contacts the other inclined surface of the first movable block and is pushed to remove the round rod from the inside of the first opening slot. This reduces the height at which the frequency selector repeater body is disassembled, thus preventing it from falling from a relatively high place due to instability and potential damage, thereby increasing the service life of the frequency selector repeater body.

[0017] This invention, through the design of heat dissipation fins, facilitates the transfer of heat generated inside the frequency selective repeater to the outside. Simultaneously, the controller activates the cooling fan, which blows air into the irregularly shaped ventilation frame. The air is also blown from top to bottom onto the surface of the heat dissipation fins from the outlet, quickly dissipating the heat and improving the efficiency of heat transfer. This not only accelerates the heat dissipation effect of the heat dissipation fins on the frequency selective repeater but also prevents dust or cobwebs from remaining between adjacent heat dissipation fin gaps, thus ensuring the effective heat dissipation of the frequency selective repeater.

[0018] This invention involves inserting a round rod into the opening slot one, making the surface of the round rod contact one of the inclined surfaces of the movable block one, and pushing it, causing the movable block one and the moving rod one to slide to one side. Simultaneously, the return spring one is stretched. When the pushing force of the round rod on the movable block one disappears, the moving rod one and the movable block one can slide to the other side and return to their original position under the reset force of the return spring one. At this time, the two adjacent limiting rings are located on both sides of the connecting plate, limiting the round rod to the left and right. Then, the round rod is made to contact the inclined surface two of the movable block two and pushed, causing the movable block two and the moving rod two to slide to one side. Simultaneously, the return spring two is stretched. When the pushing force of the round rod on the movable block two disappears, the moving rod two and the movable block two can slide to the other side and return to their original position under the reset force of the return spring two. With the front-back and left-right limiting of the round rod by the moving block two, the main body of the frequency selective repeater can be quickly installed, which is relatively simple and convenient.

[0019] This invention uses a connecting plate to drive a sliding rod to slide downwards along the inside of a straight slot. Through the cooperation of the sliding rod and the straight slot, the downward movement distance of the frequency selective repeater body is controlled, thereby reducing the pressure on the buffer spring and preventing irreversible plastic deformation of the buffer spring under load exceeding its elastic limit, thus improving the service life of the buffer spring. Attached Figure Description

[0020] Figure 1 A side view of the structure of a wall-mounted frequency selective repeater provided by this utility model;

[0021] Figure 2 A bottom-view structural diagram of a wall-mounted frequency selective repeater provided by this utility model;

[0022] Figure 3 A side view diagram of the disassembled structure of a wall-mounted frequency selective repeater provided by this utility model;

[0023] Figure 4 This utility model provides a wall-mounted frequency selective repeater. Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 A schematic diagram of the disassembled, upward-view structure of a wall-mounted frequency selective repeater provided by this utility model;

[0025] Figure 6 This utility model provides a wall-mounted frequency selective repeater. Figure 5 Enlarged structural diagram at point B.

[0026] Legend:

[0027] 1. Frequency Selective Repeater Main Body; 101. Heat Dissipation Fins; 102. Receiving Antenna; 103. Transmitting Antenna; 104. Mounting Block; 105. Round Rod; 106. Limiting Ring; 2. Mounting Plate; 201. Chinese Character-Shaped Slot; 202. Chinese Character-Shaped Strip; 203. Connecting Plate; 204. Fixing Plate; 205. Fixing Strip; 206. Guide Rod; 207. Buffer Spring; 208. Connecting Strip; 209. Opening Slot One; 210. Movable Block One; 211. Movable Rod One; 212. Return Spring One; 213. Opening Slot Two; 214. Movable Block Two; 215. Movable Rod Two; 216. Return Spring Two; 217. Straight Slot; 218. Sliding Rod; 3. Irregularly Shaped Ventilation Frame; 301. Cooling Fan; 302. Air Outlet. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] Examples, such as Figure 1-6As shown, this utility model provides a wall-mounted frequency selective repeater, including: a frequency selective repeater body 1 and a mounting plate 2. The frequency selective repeater body 1 is disposed on one side of the mounting plate 2, and also includes: two Chinese character-shaped grooves 201, symmetrically opened on one side of the mounting plate 2. A Chinese character-shaped strip 202 is slidably connected inside the Chinese character-shaped groove 201. A connecting plate 203 is fixedly connected to one side of the Chinese character-shaped strip 202. A fixing strip 205 is fixedly connected to the side of the mounting plate 2 near the bottom. Multiple guide rods 206 are fixedly connected at equal intervals to the top of the fixing strip 205. Connecting strips 208 are slidably connected to the outer surfaces of the multiple guide rods 206. The opposite sides of the connecting strips 208 are respectively fixedly connected to the two connecting plates 203. 3. On the opposite side near the top, a buffer spring 207 is provided on the outer surface of the guide rod 206. Two opening slots 209 are symmetrically opened on one side of the connecting plate 203. A movable block 210 is slidably connected to one side of the inner wall of the opening slot 209. A movable rod 211 is slidably connected to the opposite side of the connecting plate 203. The movable rod 211 is fixedly connected to the movable block 210. A reset spring 212 is provided on the outer surface of the movable rod 211. Mounting blocks 104 are fixedly connected to the four corners of one side of the frequency selector repeater body 1. A round rod 105 is fixedly connected to the opposite side of the two mounting blocks 104. The outer surface of the round rod 105 is movably connected to the inside of the two opening slots 209.

[0031] Furthermore, such as Figure 1-6 As shown, one end of multiple buffer springs 207 is fixedly connected at equal intervals to the top of the fixed bar 205, and the other end of multiple buffer springs 207 is fixedly connected at equal intervals to the bottom of the connecting bar 208. One end of two reset springs 212 is fixedly connected to opposite sides of the connecting plate 203, and the other end of two reset springs 212 is fixedly connected to one end of two movable rods 211. By setting the buffer springs 207, the downward movement speed of the frequency selective repeater body 1 can be reduced, thereby playing a certain protective role. Under the reset force of the reset springs 212, the movable rods 211 and movable blocks 210 can slide to the other side and return to their original positions.

[0032] Furthermore, such as Figure 1-6 As shown, two fixing plates 204 are symmetrically fixedly connected to one side of the mounting plate 2. A straight slot 217 is opened on one side of the fixing plate 204. A sliding rod 218 is fixedly connected to the other side of the connecting plate 203. The outer surface of the sliding rod 218 is slidably connected to the inside of the straight slot 217. Through the cooperation of the sliding rod 218 and the straight slot 217, the downward movement distance of the frequency selective repeater body 1 is controlled.

[0033] Furthermore, such as Figure 1-6As shown, two symmetrical opening slots 213 are provided on the other side of the fixed plate 204. A movable block 214 is slidably connected to one side of the inner wall of the opening slot 213. Movable rods 215 are slidably connected to the opposite side of the fixed plate 204. The movable rods 215 are fixedly connected to the movable blocks 214. With the above arrangement, when the movable rods 215 and the movable blocks 214 slide to one side and the movable blocks 214 move into the opening slots 213, it can play a role in limiting the front and rear movement of the round rod 105.

[0034] Furthermore, such as Figure 1-6 As shown, a return spring 216 is provided on the outer surface of the movable rod 215. One end of the two return springs 216 is fixedly connected to the opposite side of the fixed plate 204, and the other end of the two return springs 216 is fixedly connected to one end of the two movable rods 215. Under the return force of the return springs 216, the movable rod 215 and the movable block 214 can slide to the other side and return to their original position.

[0035] Furthermore, such as Figure 1-6 As shown, inclined surface 1 is provided on the opposite side of movable block 210, and inclined surface 2 is provided on one side of movable block 214. Multiple limiting rings 106 are symmetrically fixed to the outer surface of the round rod 105. The setting of inclined surface 1 and inclined surface 2 facilitates the round rod 105 to push movable block 210 and movable block 214. The setting of limiting ring 106 facilitates the left and right limiting of the round rod 105.

[0036] Furthermore, such as Figure 1-6 As shown, a shaped ventilation frame 3 is fixedly connected to one side of the main body 1 of the frequency selective repeater. Two cooling fans 301 are symmetrically fixedly connected to the bottom of the shaped ventilation frame 3. Multiple air outlets 302 are equidistantly opened at the bottom of the shaped ventilation frame 3 away from the cooling fans 301. The multiple air outlets 302 are all connected to the interior of the shaped ventilation frame 3. The cooling fans 301 are started by the controller, so that they blow air into the interior of the shaped ventilation frame 3 and blow the air from the air outlets 302 onto the surface of the heat dissipation fins 101 from top to bottom, so as to quickly dissipate the heat transferred by the heat dissipation fins 101 and improve the heat transfer efficiency of the heat dissipation fins 101.

[0037] Furthermore, such as Figure 1-6 As shown, multiple heat dissipation fins 101 are fixedly connected at equal intervals on the other side of the frequency selective repeater body 1. A receiving antenna 102 and a transmitting antenna 103 are provided at the bottom of the frequency selective repeater body 1. The receiving antenna 102 is used to receive external signals, and the transmitting antenna 103 is used to transmit signals to the outside. The heat dissipation fins 101 facilitate the transfer of heat generated inside the frequency selective repeater body 1 to the outside.

[0038] Working principle: In use, the mounting plate 2 is installed on the wall using expansion bolts. The main body 1 of the frequency selector repeater can then be installed. The round rod 105 is first inserted into the opening slot 209, so that the surface of the round rod 105 contacts one of the inclined surfaces of the movable block 210 and pushes against it, causing the movable block 210 and the movable rod 211 to slide to one side. Simultaneously, the return spring 212 is stretched. When the pushing force of the round rod 105 on the movable block 210 disappears, the return spring 212 allows the movable rod 211 and the movable block 210 to slide to the other side, returning to their original position. At this time, the two adjacent limiting rings 106 are located on both sides of the connecting plate 203, limiting the round rod 105 to the left and right. Then, the round rod 105 contacts the inclined surface of the movable block 214 and pushes it, causing the movable block 214 and the movable rod 215 to slide to one side. Simultaneously, the return spring 216 is stretched. When the pushing force of the round rod 105 on the movable block 214 disappears, the return spring 216, acting as a reset force, allows the movable rod 215 and the movable block 214 to slide to the other side and return to their original positions. With the movable block 214 limiting the round rod 105 forward and backward, and then limiting it left and right, the main body of the frequency selector repeater 1 can be quickly installed. This is relatively simple and convenient. The receiving antenna 102 is used to receive external signals, and the transmitting antenna 103 is used to transmit signals to the outside. The heat dissipation fins 101... The design facilitates the transfer of heat generated inside the frequency-selective repeater main body 1 to the outside. Simultaneously, the controller activates the cooling fan 301, directing airflow into the irregularly shaped ventilation frame 3. The air flows from the outlet 302 down the surface of the cooling fins 101, rapidly dissipating the heat and improving the efficiency of heat transfer. This not only accelerates the heat dissipation of the frequency-selective repeater main body 1 but also prevents dust or cobwebs from remaining between adjacent cooling fins 101, ensuring effective heat dissipation. When the frequency-selective repeater main body 1 needs disassembly and maintenance, the movable rod 215 is pulled to one side, simultaneously activating the movable block 21. 4. Slide to one side, simultaneously stretching the second reset spring 216. At this time, the frequency selector repeater body 1 can be pushed to one side a suitable distance, causing the round rod 105 to disengage from the inside of the second opening slot 213. Then, gently hold the frequency selector repeater body 1 with your hand. Under the weight of the frequency selector repeater body 1, a downward force can be applied to the connecting plate 203, causing the connecting plate 203 to drive the T-shaped strip 202 to slide downwards along the inside of the T-shaped slot 201. Simultaneously, the connecting strip 208 will slide downwards along the outer surface of the guide rod 206, simultaneously compressing the buffer spring 207. Under the reset force of the buffer spring 207, the downward movement speed of the frequency selector repeater body 1 can be slowed down. When the frequency selector repeater body 1 has moved to a suitable height...Next, by firmly grasping the main body 1 of the frequency selective repeater with both hands and pulling it to one side, the round rod 105 contacts the other inclined surface of the movable block 210, and is pushed, causing the movable block 210 and the movable rod 211 to move upward. Simultaneously, the reset spring 212 is stretched, and the round rod 105 is removed from the inside of the opening slot 209, thus completing the disassembly of the main body 1 of the frequency selective repeater. This method first reduces the disassembly height of the main body 1 of the frequency selective repeater, and the round rod 105 is supported by the connecting plate 203, making it easier for workers to hold the main body 1 of the frequency selective repeater with both hands, thereby avoiding the frequency selective repeater... The main body 1 of the frequency selective repeater station fell from a relatively high place due to instability, resulting in damage. This incident, along with other factors, extends the service life of the main body 1. Simultaneously, the connecting plate 203 drives the sliding rod 218 to slide downwards along the inside of the straight slot 217. The cooperation between the sliding rod 218 and the straight slot 217 controls the downward movement of the main body 1, thereby reducing the pressure on the buffer spring 207 and preventing irreversible plastic deformation under loads exceeding its elastic limit, thus extending the service life of the buffer spring 207.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A wall-mounted frequency selective repeater, comprising: The frequency-selective repeater body (1) and mounting plate (2), wherein the frequency-selective repeater body (1) is disposed on one side of the mounting plate (2), characterized in that it further comprises: Two Chinese character-shaped grooves (201) are symmetrically opened on one side of the mounting plate (2). A Chinese character-shaped strip (202) is slidably connected inside the Chinese character-shaped groove (201). A connecting plate (203) is fixedly connected to one side of the Chinese character-shaped strip (202). A fixing strip (205) is fixedly connected to the side of the mounting plate (2) near the bottom. Multiple guide rods (206) are fixedly connected at equal intervals to the top of the fixing strip (205). Connecting strips (208) are slidably connected to the outer surfaces of the multiple guide rods (206). The opposite sides of the connecting strips (208) are respectively fixedly connected to the opposite sides of the two connecting plates (203) near the top. A buffer spring (207) is provided on the outer surface of the guide rods (206). Two opening slots (209) are symmetrically opened on one side of the connecting plate (203). A movable block (210) is slidably connected to one side of the inner wall of the opening slot (209). A movable rod (211) is slidably connected to the opposite side of the connecting plate (203). The movable rod (211) is fixedly connected to the movable block (210). A reset spring (212) is provided on the outer surface of the movable rod (211). Mounting blocks (104) are fixedly connected to the four corners of one side of the frequency selector repeater body (1). A round rod (105) is fixedly connected to the opposite side of the two mounting blocks (104). The outer surface of the round rod (105) is movably connected to the inside of the two opening slots (209).

2. The wall-mounted frequency selective repeater according to claim 1, characterized in that: One end of each of the multiple buffer springs (207) is fixedly connected at equal intervals to the top of the fixed bar (205), and the other end of each of the multiple buffer springs (207) is fixedly connected at equal intervals to the bottom of the connecting bar (208). One end of each of the two reset springs (212) is fixedly connected to opposite sides of the connecting plate (203), and the other end of each of the two reset springs (212) is fixedly connected to one end of each of the two movable rods (211).

3. A wall-mounted frequency selective repeater according to claim 2, characterized in that: Two fixing plates (204) are symmetrically fixedly connected to one side of the mounting plate (2). A straight groove (217) is opened on one side of the fixing plate (204). A sliding rod (218) is fixedly connected to the other side of the connecting plate (203). The outer surface of the sliding rod (218) is slidably connected to the inside of the straight groove (217).

4. A wall-mounted frequency selective repeater according to claim 3, characterized in that: Two opening slots (213) are symmetrically opened on the other side of the fixed plate (204). A movable block (214) is slidably connected to one side of the inner wall of the opening slot (213). Movable rods (215) are slidably connected to the opposite side of the fixed plate (204). The movable rods (215) are fixedly connected to the movable blocks (214).

5. A wall-mounted frequency selective repeater according to claim 4, characterized in that: The outer surface of the movable rod 2 (215) is provided with a reset spring 2 (216). One end of the two reset springs 2 (216) is fixedly connected to the opposite side of the fixed plate (204), and the other end of the two reset springs 2 (216) is fixedly connected to one end of the two movable rods 2 (215).

6. A wall-mounted frequency selective repeater according to claim 4, characterized in that: The opposite side of the first movable block (210) is provided with a slope, and the side of the second movable block (214) is provided with a slope. The outer surface of the round rod (105) is symmetrically fixed with multiple limiting rings (106).

7. A wall-mounted frequency selective repeater according to claim 1, characterized in that: A shaped ventilation frame (3) is fixedly connected to one side of the main body (1) of the frequency selector repeater. Two cooling fans (301) are symmetrically fixedly connected to the bottom of the shaped ventilation frame (3). Multiple air outlets (302) are equidistantly opened at the bottom of the shaped ventilation frame (3) away from the cooling fans (301). All of the multiple air outlets (302) are connected to the interior of the shaped ventilation frame (3).

8. A wall-mounted frequency selective repeater according to claim 7, characterized in that: Multiple heat dissipation fins (101) are fixedly connected at equal intervals on the other side of the frequency selective repeater body (1), and a receiving antenna (102) and a transmitting antenna (103) are provided at the bottom of the frequency selective repeater body (1).

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