A wire protection cover for filter

Abstract

The utility model provides a wire protection cover of a filter, the filter comprises a shell and a through slot opened on the shell, the wire protection cover is inserted in the through slot, the wire protection cover comprises a penetration piece for passing through the through slot and an abutment piece located at a side of the penetration piece, the side wall of the penetration piece is provided with at least one elastic block which can abut against the shell to prevent the abutment piece from falling out after the penetration piece passes through the through slot, the radius of the penetration piece is smaller than the radius of the through slot, and the wire protection cover can overcome the defect in the prior art that a first sealing sheet needs to be stuffed into a round hole by brute force during installation, resulting in installation difficulties.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a wire protection cover of a filter. Background Art

[0002] The function of the filter is to remove or weaken the signals in certain frequency ranges, while retaining or enhancing the signals in other frequency ranges, thereby improving the quality and stability of the signal. The wires at both ends of the filter play the role of transmitting power signals or circuit signals, while ensuring that the filter can be correctly connected to the circuit and play its filtering function. The wires at both ends of the filter play the role of transmitting power signals or circuit signals, while ensuring that the filter can be correctly connected to the circuit and play its filtering function. A connection protective cover for protecting the wire should be set between the filter and the wire, such as Figure 5 As shown, a round hole is provided on the filter housing for the protective cover and the wire to pass through. The protective cover in the prior art mostly includes a first sealing sheet 01 and a second sealing sheet 02 which are arranged inside and outside the housing and are integrally formed. During the installation process, the first sealing sheet 01 needs to be stuffed into the round hole by brute force, which makes the installation difficult. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect in the prior art that during the installation process, the first sealing sheet needs to be inserted into the round hole by brute force, resulting in installation difficulties, thereby providing a wire protective cover for the filter that is easy to install.

[0004] To this end, the utility model provides a wire protection cover of a filter, the filter comprising a shell and a through slot opened on the shell, the wire protection cover is inserted in the through slot, the wire protection cover comprises a penetration piece for passing through the through slot and an abutment piece located on the side of the penetration piece, the side wall of the penetration piece is provided with at least one elastic block which can abut against the shell to prevent the abutment piece from falling out when the penetration piece passes through the through slot, and the radius of the penetration piece is smaller than the radius of the through slot.

[0005] Furthermore: the abutment member and the penetration member are hollow inside to form a receiving cavity for the wire to pass through, two elastic blocks are provided, and an avoidance groove for avoiding the elastic block is provided on the side of the penetration member, and the elastic block includes a connecting piece that can be deformed toward one side of the receiving cavity and an abutment block arranged on the connecting piece and capable of abutting against the side wall of the shell.

[0006] Further: the abutment block includes a guiding surface for guiding the penetration piece to pass through the penetration groove, an abutment surface abutting against the shell after the penetration piece passes through the penetration groove, and a connecting surface connected to the connecting piece. The guiding surface, the abutment surface and the connecting surface are arranged to form a triangular structure.

[0007] Further: the penetration member and the abutment member are coaxially arranged and both are annular structures. Further: the abutment member is located on the outer side of the shell, and the penetration member passes through the penetration slot so that the abutment surface abuts against the inner side of the shell.

[0008] The technical solution of the utility model has the following advantages:

[0009] 1. The utility model provides a wire protection cover for a filter. When installing the wire protection cover, it is only necessary to insert the penetration piece into the penetration groove. Since the radius of the penetration piece is smaller than the radius of the penetration groove, the penetration piece can quickly pass through the penetration groove. During the passing process, the elastic block is limited by the penetration groove and thus deforms from the outside to the inside until the elastic block completely passes through the penetration groove. The elastic block loses the limitation of the penetration groove and pops out from the inside to the outside, so that the side wall of the elastic block abuts against the side wall of the penetration groove, thereby preventing the penetration piece from falling out of the penetration groove. This is superior to the prior art and can quickly install the wire protection cover. After the wire protection cover is installed, the positioning of the penetration piece can be achieved to prevent it from falling out of the penetration groove.

[0010] 2. The utility model provides a wire protection cover for a filter, wherein the interior of the abutment piece and the penetration piece is hollow to form an accommodating cavity for the wire to pass through, and the wire is passed through the accommodating cavity, and two elastic blocks are provided and are relatively arranged on the side walls of the penetration piece, and two avoidance grooves are provided on the penetration piece, and the elastic block is arranged in the avoidance groove. When the penetration piece passes through the penetration groove, due to the limitation of the penetration groove, the connecting piece will be deformed toward one side of the accommodating cavity until the connecting piece is completely separated from the limitation of the penetration groove. After that, the connecting piece will pop outward due to its own elastic restoring force, so that the abutment block abuts against the side wall of the penetration groove, thereby preventing the penetration piece from being separated from the penetration groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the connection structure between the filter and the wire protection cover;

[0013] Figure 2 It is a top view between the filter and the wire protection cover;

[0014] Figure 3 is a side view of the wire protection cover;

[0015] Figure 4 is a cross-sectional view of a wire protection cover;

[0016] Figure 5 The figure is a schematic diagram of the connection structure between the filter and the wire protection cover in the prior art.

[0017] Description of reference numerals:

[0018] 01. first sealing sheet; 02. second sealing sheet;

[0019] 1. Shell; 11. Through groove; 2. Through-piece; 21. Avoidance groove; 3. Abutment piece; 4. Elastic block; 41. Connecting piece; 42. Abutment block; 421. Guide surface; 422. Abutment surface; 5. Accommodating cavity. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Example

[0025] The present embodiment provides a wire protection cover of a filter, the filter includes a shell 1 and a through slot 11 opened on the shell 1, the wire protection cover is inserted into the through slot 11, the wire protection cover includes a penetration piece 2 for passing through the through slot 11 and an abutment piece 3 located on the side of the penetration piece 2, the side wall of the penetration piece 2 is provided with at least one elastic block 4 that can abut against the shell 1 to prevent the abutment piece 3 from falling out when the penetration piece 2 passes through the through slot 11, and the radius of the penetration piece 2 is smaller than the radius of the through slot 11.

[0026] The above specific improvements are: Figure 1 and Figure 2 As shown, compared with the prior art, when installing the wire protection cover, it is only necessary to insert the penetration piece 2 into the penetration groove 11. Since the radius of the penetration piece 2 is smaller than the radius of the penetration groove 11, the penetration piece 2 can quickly pass through the penetration groove 11. During the passing process, the elastic block 4 is limited by the penetration groove 11 and will be deformed from the outside to the inside until the elastic block 4 completely passes through the penetration groove 11. The elastic block 4 loses the limitation of the penetration groove 11 and will pop out from the inside to the outside, so that the side wall of the elastic block 4 abuts against the side wall of the penetration groove 11, thereby preventing the penetration piece 2 from falling out of the penetration groove 11. This is better than the prior art and can quickly install the wire protection cover. After the wire protection cover is installed, the positioning of the penetration piece 2 can be achieved to prevent it from falling out of the penetration groove 11.

[0027] On the basis of the above embodiment: the abutment member 3 and the penetration member 2 are hollow inside to form a receiving cavity 5 for the wire to pass through, two elastic blocks 4 are provided, and an avoidance groove 21 for avoiding the elastic block 4 is provided on the side of the penetration member 2, and the elastic block 4 includes a connecting piece 41 that can be deformed toward one side of the receiving cavity 5 and an abutment block 42 arranged on the connecting piece 41 and capable of abutting against the side wall of the shell 1.

[0028] The above specific improvements are: Figure 3 and Figure 4 As shown, the abutment member 3 and the penetration member 2 are hollow inside to form an accommodating cavity 5 for the wire to pass through. The wire is passed through the accommodating cavity 5. Two elastic blocks 4 are provided and are relatively arranged on the side walls of the penetration member 2. Two avoidance grooves 21 are provided on the penetration member 2. The elastic block 4 is arranged in the avoidance groove 21. When the penetration member 2 passes through the penetration groove 11, due to the limitation of the penetration groove 11, the connecting piece 41 will be deformed toward one side of the accommodating cavity 5 until the connecting piece 41 is completely separated from the limitation of the penetration groove 11. After that, the connecting piece 41 will pop outward due to its own elastic restoring force, so that the abutment block 42 abuts against the side wall of the penetration groove 11, thereby preventing the penetration member 2 from being separated from the penetration groove 11.

[0029] On the basis of the above embodiment: the abutment block 42 includes a guiding surface 421 for guiding the penetration member 2 to pass through the through groove 11, an abutment surface 422 abutting against the shell 1 after the penetration member 2 passes through the through groove 11, and a connecting surface connected to the connecting piece 41, and the guiding surface 421, the abutment surface 422 and the connecting surface are surrounded to form a triangular structure.

[0030] The above specific improvements are: Figure 4 As shown, the abutment block 42 includes a guiding surface 421, an abutment surface 422 and a connecting surface. The connecting surface is arranged at a position connected to the connecting piece 41, and is used to connect the abutment block 42 and the connecting piece 41. When the penetration member 2 passes through the through groove 11, the guiding surface 421 is arranged as an inclined surface, which can play a guiding role. After the penetration member 2 completely passes through the through groove 11, the abutment surface 422 will abut against the side wall of the through groove 11.

[0031] On the basis of the above embodiment: the penetration member 2 and the abutment member 3 are coaxially arranged and both are annular structures.

[0032] The above-mentioned specific improvement is: by setting the ring structure of the penetration member 2 and the abutment member 3, it is convenient for the wire to pass through the penetration member 2 and the abutment member 3.

[0033] On the basis of the above embodiment: the abutting member 3 is located on the outer side of the shell 1 , and the penetration member 2 passes through the penetration slot 11 , so that the abutting surface 422 abuts against the inner side of the shell 1 .

[0034] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A wire protection cover for a filter, characterized in that: The filter comprises a housing (1) and a through slot (11) provided on the housing (1); the wire protection sleeve is inserted into the through slot (11); the wire protection sleeve comprises a penetration piece (2) for passing through the through slot (11) and an abutment piece (3) located on the side of the penetration piece (2); the side wall of the penetration piece (2) is provided with at least one elastic block (4) which can abut against the housing (1) to prevent the abutment piece (3) from falling out after the penetration piece (2) passes through the through slot (11); and the radius of the penetration piece (2) is smaller than the radius of the through slot (11).

2. The wire protection cover of a filter according to claim 1, characterized in that: The abutment member (3) and the penetration member (2) are hollow inside to form a receiving cavity (5) for the wire to pass through, two elastic blocks (4) are provided, and a sidewall of the penetration member (2) is provided with an avoidance groove (21) for avoiding the elastic block (4), and the elastic block (4) comprises a connecting piece (41) capable of deforming toward one side of the receiving cavity (5) and an abutment block (42) provided on the connecting piece (41) and capable of abutting against a sidewall of the housing (1).

3. The wire protection cover of a filter according to claim 2, characterized in that: The abutment block (42) comprises a guiding surface (421) for guiding the penetration member (2) to pass through the penetration groove (11), an abutment surface (422) abutting against the shell (1) after the penetration member (2) passes through the penetration groove (11), and a connecting surface connected to the connecting piece (41); the guiding surface (421), the abutment surface (422) and the connecting surface are arranged to form a triangular structure.

4. The wire protection cover of a filter according to claim 3, characterized in that: The penetration member (2) and the abutment member (3) are coaxially arranged and both are in an annular structure.

5. The wire protection cover of a filter according to claim 4, characterized in that: The abutment member (3) is located on the outer side surface of the shell (1), and the penetration member (2) passes through the penetration groove (11), so that the abutment surface (422) abuts against the inner side surface of the shell (1).

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