Filter coupling device

Abstract

The utility model discloses a filter coupling device, which belongs to the field of filters, and comprises a device main body, and the end part of the device main body is provided with a wiring terminal. Through the arranged coupling connection structure, when a cable is installed and connected, the contact head at the end of the cable is inserted into the connection cavity, the abutting assembly is used for pressing the contact head on the contact piece, so that pre-connection is carried out, a filter test is facilitated, if the filter is unqualified, the cable can be rapidly pulled out to replace the filter, and the cost is reduced. An abutting spring in an abutting assembly ensures that a pressing plate has a large acting force on a contact head, the test accuracy during pre-connection is guaranteed, threaded holes are formed in a movable rod and the pressing plate and used in cooperation with a screw, the screw can be rotated to be pressed on the contact head, the stability during connection and use is guaranteed, an installation protection structure is arranged on an installation plate, and the installation protection structure is convenient to use. A buffer protection effect can be achieved, the installation plate is prevented from being damaged by the screws, and meanwhile the stability of the whole filter after installation can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to a filter coupling device. Background Art

[0002] A filter is a device used to filter "waves", which is mainly composed of a filter circuit composed of capacitors, inductors and resistors. Its working principle is based on frequency selectivity, that is, only signals within a specific frequency range are allowed to pass, while signals of other frequencies are suppressed or weakened. During the use of the filter, the filter needs to be connected to other devices. This connection is called a coupling connection, and a terminal block is usually used for coupling connection of the filter.

[0003] When coupling existing filters, cables are used to couple the filters with other devices. This process requires that the cable ends be wrapped around the filter's terminal posts, and nuts cannot be used in the filter to fix the cables. The coupling process cannot be quickly implemented, and pre-connection cannot be performed after the coupling connection process. When the filter is found to be unusable after testing, the filter needs to be disassembled and replaced, and this process takes more time. In some filters, cables are connected by plugging, but the connection stability after plugging is general and is prone to loosening. When the plug-in part is loose, poor contact will occur, which will affect the normal use of the filter. When installing existing filters, they are directly fixed with screws in cooperation with the base plate. After multiple installations and disassemblies, the force exerted by the screws on the base plate will cause damage to the base plate, causing the filter to be unable to be installed stably. Utility Model Content

[0004] The main purpose of the utility model is to provide a filter coupling device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A filter coupling device comprises a device body, wherein the end of the device body is provided with a wiring terminal, and the lower end of the device body is provided with a mounting plate, the end of the device body is connected with a coupling connection structure, and the coupling connection structure comprises a fixing seat, a contact piece and a clamping assembly, the contact piece is arranged in the fixing seat, the clamping assembly is installed on the fixing seat, the mounting plate is provided with a mounting protection structure, and the mounting protection structure comprises a supporting block and a rubber pad, and the supporting block and the rubber pad are connected to the mounting plate.

[0007] Preferably, a shell is provided on the device body, and the wiring terminal is fixedly installed at the end of the device body.

[0008] Preferably, a mounting hole is provided on the mounting plate, and the mounting protection structure is arranged in the mounting hole on the mounting plate.

[0009] Preferably, the coupling connection structure also includes a connecting cavity and a metal sheet, the connecting cavity is opened on the fixing seat, the metal sheet is fixedly connected to the contact sheet, and the contact sheet is located in the connecting cavity, the metal sheet passes through the fixing seat and is connected to the device body, and the clamping assembly is located above the contact sheet.

[0010] Preferably, the clamping assembly includes a movable rod, a pressure plate, a threaded hole, a clamping spring, a screw and an adjusting block, the movable rod is fixedly connected to the pressure plate, and the movable rod is installed on a fixed seat, the pressure plate is located in a connecting cavity, the threaded hole is opened on the movable rod and the pressure plate, the clamping spring is sleeved on the movable rod, and the ends of the clamping spring respectively contact the top wall of the connecting cavity and the pressure plate, the screw is fixedly connected to the adjusting block, and the screw is connected in the threaded hole.

[0011] Preferably, the installation protection structure also includes a sleeve and a circular hole, the sleeve is fixed on the support block, and the sleeve passes through the installation hole on the installation plate, the circular hole is opened on the rubber pad, and the rubber pad is mounted on the sleeve through the circular hole.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the filter coupling device, through the coupling connection structure, when installing and connecting the cable, inserts the contact head at the end of the cable into the connection cavity, and uses the clamping assembly to press the contact head onto the contact sheet, thereby performing pre-connection, which is convenient for testing the filter. If the filter is unqualified, the cable can be quickly unplugged to replace the filter. The clamping spring in the clamping assembly ensures that the pressure plate has a large force on the contact head, thereby ensuring the accuracy of the test during pre-connection. Threaded holes are provided on the movable rod and the pressure plate, and used in conjunction with the screw rod, the screw rod can be rotated to press on the contact head, thereby ensuring the stability of the connection during use. An installation protection structure is provided on the mounting plate, which can play a role of buffering protection, avoiding damage to the mounting plate by the screw, while ensuring the stability of the entire filter after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the coupling connection structure of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the tightening component of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the protective structure installed in the utility model.

[0017] In the figure: 1. device body; 2. wiring terminal; 3. coupling connection structure; 301. fixing seat; 302. connecting cavity; 303. contact piece; 304. metal sheet; 305. tightening component; 3051. movable rod; 3052. pressure plate; 3053. threaded hole; 3054. tightening spring; 3055. screw; 3056. adjusting block; 4. mounting plate; 5. mounting protection structure; 501. supporting block; 502. socket; 503. rubber pad; 504. round hole; 6. outer shell. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 4 As shown, a filter coupling device comprises a device body 1, a terminal 2 is provided at the end of the device body 1, and a mounting plate 4 is provided at the lower end of the device body 1, a coupling connection structure 3 is connected to the end of the device body 1, a mounting protection structure 5 is provided on the mounting plate 4, and the mounting protection structure 5 comprises a support block 501 and a rubber pad 503, the support block 501 and the rubber pad 503 are connected to the mounting plate 4, a housing 6 is provided on the device body 1, the terminal 2 is fixedly installed at the end of the device body 1, a mounting hole is opened on the mounting plate 4, and the mounting The protective structure 5 is arranged in the mounting hole on the mounting plate 4. The mounting protective structure 5 also includes a socket 502 and a circular hole 504. The socket 502 is fixed on the support block 501, and the socket 502 passes through the mounting hole on the mounting plate 4. The circular hole 504 is opened on the rubber pad 503, and the rubber pad 503 is sleeved on the socket 502 through the circular hole 504. The mounting protective structure 5 is arranged on the mounting plate 4, which can play a role of buffer protection, prevent the screws from damaging the mounting plate 4, and at the same time ensure the stability of the entire filter after installation.

[0020] When installing the filter, an installation protection structure 5 is set in the installation hole on the installation plate 4, the support block 501 is located below the installation plate 4, the socket 502 passes through the installation hole, and the rubber pad 503 is sleeved on the socket 502 through the round hole 504. The screws are passed through the installation protection structure 5 and connected to a suitable place, thereby completing the installation and fixation of the filter. At this time, the screws and the installation plate 4 are buffered by the rubber pad 503, and the screws will not cause damage to the installation plate 4, thereby ensuring the normal installation and use of the filter. After the filter is installed, the coupling connection structure 3 is used to connect the cables, and the terminal 2 at the end of the device body 1 is used for other related connections. When it is used after the connection is completed, the shell 6 serves to protect the internal structure of the device body 1. The internal structure of the device body 1 performs filtering, and only waves of corresponding frequencies are allowed to pass, thereby ensuring the accuracy of signal transmission.

[0021] According to the above embodiment, the coupling connection structure 3 includes a fixed seat 301, a contact sheet 303 and a tightening assembly 305, wherein the contact sheet 303 is arranged in the fixed seat 301, and the tightening assembly 305 is installed on the fixed seat 301. The coupling connection structure 3 also includes a connecting cavity 302 and a metal sheet 304, wherein the connecting cavity 302 is opened on the fixed seat 301, and the metal sheet 304 is fixedly connected to the contact sheet 303, and the contact sheet 303 is located in the connecting cavity 302, and the metal sheet 304 passes through the fixed seat. The contact piece 303 is connected to the device body 1, and the pressing assembly 305 is located above the contact piece 303. The pressing assembly 305 includes a movable rod 3051, a pressing plate 3052, a threaded hole 3053, a pressing spring 3054, a screw rod 3055 and an adjusting block 3056. The movable rod 3051 is fixedly connected to the pressing plate 3052, and the movable rod 3051 is installed on the fixing seat 301. The pressing plate 3052 is located in the connecting cavity 302, and the threaded hole 3053 is opened between the movable rod 3051 and the pressing plate 3052. 52, the pressing spring 3054 is sleeved on the movable rod 3051, and the ends of the pressing spring 3054 contact the top wall of the connecting cavity 302 and the pressing plate 3052 respectively, the screw 3055 is fixedly connected to the adjusting block 3056, and the screw 3055 is connected to the threaded hole 3053. Through the provided coupling connection structure 3, when installing and connecting the cable, the contact head at the end of the cable is inserted into the connecting cavity 302, and the contact head is pressed onto the contact sheet 303 by using the pressing assembly 305, so as to Pre-connection is convenient for testing the filter. If the filter is unqualified, the cable can be quickly unplugged to replace the filter. The clamping spring 3054 in the clamping assembly 305 ensures that the pressure plate 3052 has a greater force on the contact head, thereby ensuring the accuracy of the test during pre-connection. Threaded holes 3053 are set on the movable rod 3051 and the pressure plate 3052. When used in conjunction with the screw rod 3055, the screw rod 3055 can be rotated to press on the contact head to ensure stability during connection.

[0022] When connecting the filter, the movable rod 3051 is lifted up by adjusting the block 3056 and the screw 3055, and the movable rod 3051 and the pressure plate 3052 move to make way and compress the clamping spring 3054, and then the terminal end of the cable is inserted into the connecting cavity 302 on the fixing seat 301. After loosening the adjusting block 3056, under the action of the clamping spring 3054, the clamping assembly 305 moves and presses on the contact head, so that the contact head is in close contact with the contact sheet 303 at the end of the metal sheet 304, and then the filter is tested. If the filter is unqualified, the cable is removed and the filter is taken away for replacement. If the filter is qualified and can be used normally, there is no need to remove the cable, and the screw 3055 is rotated by the adjusting block 3056, and the screw 3055 is rotated in the threaded hole 3053 until the lower end of the screw 3055 is pressed on the contact head, thereby completing the fixing of the contact head, and the filter can be used after installation and connection.

[0023] The above content describes the use principle, features and beneficial effects of the utility model. Relevant personnel in the field can understand from the above content that the above content does not limit the utility model. The above embodiments and instructions describe the basic principles and features of the utility model. Under the premise of conforming to the concept of the utility model, the utility model can also be modified in various ways, and these modifications should fall within the scope of protection required by the utility model.

Claims

1. A filter coupling device, comprising a device body (1), wherein a connection terminal (2) is provided at the end of the device body (1), and a mounting plate (4) is provided at the lower end of the device body (1), characterized in that: The end of the device body (1) is connected to a coupling connection structure (3), and the coupling connection structure (3) comprises a fixing seat (301), a contact piece (303) and a pressing assembly (305), wherein the contact piece (303) is arranged in the fixing seat (301), and the pressing assembly (305) is installed on the fixing seat (301), and the mounting plate (4) is provided with a mounting protection structure (5), and the mounting protection structure (5) comprises a supporting block (501) and a rubber pad (503), and the supporting block (501) and the rubber pad (503) are connected to the mounting plate (4).

2. A filter coupling device according to claim 1, characterized in that: The device body (1) is provided with a housing (6), and the connection terminal (2) is fixedly mounted on the end of the device body (1).

3. A filter coupling device according to claim 2, characterized in that: The mounting plate (4) is provided with a mounting hole, and the mounting protection structure (5) is arranged in the mounting hole on the mounting plate (4).

4. A filter coupling device according to claim 3, characterized in that: The coupling connection structure (3) further comprises a connection cavity (302) and a metal sheet (304); the connection cavity (302) is provided on the fixing seat (301); the metal sheet (304) is fixedly connected to the contact sheet (303), and the contact sheet (303) is located in the connection cavity (302); the metal sheet (304) passes through the fixing seat (301) and is connected to the device body (1); and the abutting assembly (305) is located above the contact sheet (303).

5. A filter coupling device according to claim 4, characterized in that: The clamping assembly (305) comprises a movable rod (3051), a pressure plate (3052), a threaded hole (3053), a clamping spring (3054), a screw rod (3055) and an adjusting block (3056); the movable rod (3051) is fixedly connected to the pressure plate (3052), and the movable rod (3051) is installed on the fixing seat (301); the pressure plate (3052) is located in the connecting cavity (302); The threaded hole (3053) is provided on the movable rod (3051) and the pressure plate (3052); the retaining spring (3054) is sleeved on the movable rod (3051), and the ends of the retaining spring (3054) respectively contact the top wall of the connecting cavity (302) and the pressure plate (3052); the screw rod (3055) is fixedly connected to the adjusting block (3056), and the screw rod (3055) is connected in the threaded hole (3053).

6. A filter coupling device according to claim 5, characterized in that: The installation protection structure (5) further comprises a socket (502) and a circular hole (504); the socket (502) is fixed on the support block (501), and the socket (502) passes through the installation hole on the installation plate (4); the circular hole (504) is provided on the rubber pad (503), and the rubber pad (503) is sleeved on the socket (502) through the circular hole (504).

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