Incoming and outgoing line sleeve and connecting piece thereof

Abstract

The utility model relates to an incoming and outgoing line sleeve and a connecting piece thereof, and belongs to the technical field of electrical equipment. The electric conductor is arranged on the inner side of the sleeve body, one end of the electric conductor extends out of the sleeve body, and the other end of the electric conductor is arranged in the sleeve body and forms a connecting plug; one end of the connecting piece is used for being clamped with the connecting plug, and the other end of the connecting piece is used for being clamped with a conducting rod in the switch; and the plugging port is arranged at one end, close to the plugging head, of the sleeve body, one end of the connecting piece is inserted into the plugging port, and the plugging head is exposed in the plugging port. According to the invention, the firmness of connection between the conductor and the conducting rod is improved, and the possibility of poor contact when the incoming and outgoing line sleeve is installed on the switch is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical equipment, in particular to an incoming and outgoing line sleeve and a connecting piece thereof. BACKGROUND

[0002] A pole switch refers to a safety switch used on a power pole to ensure electrical safety, and the main function is to isolate the high voltage of the circuit, and the incoming and outgoing line sleeve is a sleeve device for insulating protection of cables, wires or conductors.

[0003] When the incoming and outgoing line sleeve is installed on the pole switch, the conductive body in the incoming and outgoing line sleeve needs to be connected and conducted with the conductive rod in the pole switch. In the prior art, the conductive body and the conductive rod in the switch are connected in an abutting or plug-in manner. After a period of use, the connection between the two is prone to looseness or gap, and there is a problem of poor contact. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the reliability of the contact between the incoming and outgoing line sleeve and the conductive rod in the switch, the present application provides an incoming and outgoing line sleeve.

[0005] In the first aspect, the present application provides an incoming and outgoing line sleeve, which adopts the following technical scheme:

[0006] An incoming and outgoing line sleeve comprises:

[0007] A sleeve body;

[0008] A conductive body arranged inside the sleeve body, with one end extending out of the sleeve body and the other end arranged inside the sleeve body and formed with a plug-in connector;

[0009] A connecting piece with conductivity, one end of which is used for clamping the plug-in connector, and the other end of which is used for clamping the conductive rod in the switch;

[0010] A plug-in port arranged at one end of the sleeve body close to the plug-in connector, for inserting one end of the connecting piece, and the plug-in connector is exposed in the plug-in port.

[0011] Optionally, a capacitor is further included, which is arranged outside the conductive body and inside the sleeve body.

[0012] Optionally, the capacitor is fixed to the outside of the conductive body through a support member.

[0013] Optionally, the support member comprises an inner support sleeve and an outer support sleeve fixed to the outside of the inner support sleeve, the inner support sleeve is fixedly sleeved on the conductive body, and the inner support sleeve is fixedly sleeved on the capacitor.

[0014] Optionally, the sleeve body is provided with a mounting portion at one end close to the connecting piece, and further comprises a flange pressing plate for pressing the mounting portion against the installation position.

[0015] In a second aspect, the application further provides a connecting piece of an inlet and outlet line sleeve, which adopts the following technical scheme:

[0016] A connecting piece of an inlet and outlet line sleeve, which is used in the above-mentioned inlet and outlet line sleeve, comprises two or more electrically-conductive elastic pieces which are arranged in a circle, and all the electrically-conductive elastic pieces can be clamped on the outside of a plug-in connector.

[0017] Optionally, the inner side of all the electrically-conductive elastic pieces is provided with an inner fixing member, and the inner fixing member is provided with a first limiting surface for limiting the plug-in connector and a second limiting surface for limiting the electrically-conductive rod in the switch.

[0018] Optionally, the connecting piece further comprises an outer sealing sleeve, all the electrically-conductive elastic pieces are arranged on the inner side of the outer sealing sleeve, and the outer sealing sleeve is in interference fit with the plug-in connector.

[0019] In summary, the application has the following beneficial technical effects:

[0020] In the application, the end of the electrically-conductive body in the inlet and outlet line sleeve is provided with a plug-in connector, the connecting piece is used as an intermediate body for connecting the electrically-conductive body and the electrically-conductive rod, when the connecting piece is connected, one end of the connecting piece is clamped with the plug-in connector, and the other end is clamped with the electrically-conductive rod in the switch, and the connecting piece has electrically-conductive property, compared with the direct abutting or plugging mode of the electrically-conductive body and the electrically-conductive rod in the prior art, the connecting piece is beneficial to improve the firmness of the connection between the electrically-conductive body and the electrically-conductive rod, and reduce the possibility of poor contact when the inlet and outlet line sleeve is installed on the switch. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is an exploded view of an inlet and outlet line sleeve according to an embodiment of the application, wherein the sleeve body has been cut.

[0022] Figure 2 is a structural schematic view of a capacitor and a supporting member according to an embodiment of the application.

[0023] Figure 3 is a structural schematic view of a connecting piece according to an embodiment of the application.

[0024] Figure 4 is a structural schematic view of a first elastic hoop and a second elastic hoop according to an embodiment of the application.

[0025] Explanation of reference signs: 1, sleeve body; 11, plug-in port; 12, mounting portion; 2, electric conductor; 21, plug-in head; 3, connecting piece; 31, electrically conductive elastic sheet; 32, inner fixing piece; 321, first limiting surface; 322, second limiting surface; 33, outer sealing sleeve; 331, outer guide conical surface; 332, first mounting groove; 333, second mounting groove; 34, first elastic hoop; 35, second elastic hoop; 4, capacitor; 41, lead wire one; 42, lead wire two; 5, support member; 51, inner support sleeve; 52, outer support sleeve; 6, flange pressing plate. DETAILED DESCRIPTION

[0026] The following will be described in detail below with reference to the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0027] Embodiment:

[0028] In a first aspect, the embodiments of the present application disclose an inlet and outlet line sleeve.

[0029] With reference to Figure 1 The inlet and outlet line sleeve comprises a sleeve body 1, an electric conductor 2 and a connecting piece 3. The electric conductor 2 is located at the inner side of the sleeve body 1 and extends out of the sleeve body 1 at one end and extends into the sleeve body 1 at the other end and is integrally formed with a plug-in head 21. The connecting piece 3 is electrically conductive and is used for clamping with the plug-in head 21 at one end and is used for clamping with the electric rod in the switch at the other end. The sleeve body 1 is provided with a plug-in port 11 at the end close to the plug-in head 21, and the plug-in head 21 is exposed in the plug-in port 11 so that the one end of the connecting piece 3 is inserted into and clamped with the plug-in head 21. In the embodiment, the material of the sleeve body 1 is epoxy resin, and the electric conductor 2 is a copper rod.

[0030] When the inlet and outlet line sleeve is used, the plug-in head 21 is arranged at the end of the electric conductor 2 in the inlet and outlet line sleeve, and the connecting piece 3 serves as an intermediate body for connecting the electric conductor 2 and the electric rod. When the connection is made, the one end of the connecting piece 3 is clamped with the plug-in head 21, and the other end is clamped with the electric rod in the switch, and the connecting piece 3 is electrically conductive. Compared with the prior art in which the electric conductor 2 directly abuts or plugs with the electric rod, the connecting piece 3 is beneficial to improve the firmness of the connection between the electric conductor 2 and the electric rod and reduce the possibility of poor contact when the inlet and outlet line sleeve is installed on the switch.

[0031] With reference to Figures 1-2The access line sleeve further comprises a capacitor 4, and the capacitor 4 is arranged outside the conductive body 2 and inside the sleeve body 1. The capacitor 4 is used to replace the conventional voltage transformer to take electricity, which is beneficial to reduce the size of the switch, reduce the cost of the switch, and the capacitor taking electricity is more stable, and the safety problems such as overcurrent and electromagnetic resonance caused by the secondary side short circuit of the voltage transformer are avoided in the safety aspect. In the embodiment, the capacitor 4 is provided with three capacitors, one of which is electrically connected with a lead wire one 41, and the other two capacitors are connected in parallel and electrically connected with a lead wire two 42, and the lead wire one 41 and the lead wire two 42 can be quickly plugged and connected with the external circuit. Through the structure layout, it is beneficial to reduce the volume of the sleeve body 1 as much as possible under the condition of ensuring sufficient electricity taking; the capacitor 4 is a high-voltage ceramic electricity taking capacitor.

[0032] Referring to Figures 1-2 The capacitor 4 is fixed outside the conductive body 2 through the support member 5, and the capacitor 4, the support member 5 and the sleeve body 1 are integrally cast. The support member 5 comprises an inner support sleeve 51 and an outer support sleeve 52 fixed outside the inner support sleeve 51, the inner support sleeve 51 is fixedly sleeved on the conductive body 2, and the inner support sleeve 51 is fixedly sleeved on the capacitor 4. In the embodiment, the support member 5 is a rigid material, which can be adapted to capacitors 4 of different types. Through the arrangement of the support member 5, the overall structure of the sleeve body 1 can be internally supported, and the capacitor 4 can be protected to some extent, reducing the possibility of damage to the capacitor 4, and prolonging the service life of the access line sleeve.

[0033] Referring to Figure 1 In order to facilitate the installation and fixation of the access line sleeve, the sleeve body 1 is provided with a mounting portion 12 close to one end of the connecting piece 3, and the access line sleeve further comprises a flange pressing plate 6 for pressing the mounting portion 12 on the to-be-installed position.

[0034] In a second aspect, the embodiment of the present application further discloses a connecting piece for the access line sleeve.

[0035] Referring to Figures 3-4 The connecting piece of the access line sleeve comprises two or more conductive elastic sheets 31 which are spaced and enclosed to form a circumference, and all the conductive elastic sheets 31 can be clamped on the outside of the plug-in connector 21. In the embodiment, the conductive elastic sheet 31 is provided with three conductive elastic sheets.

[0036] Referring to Figure 3 The inner side of all the conductive elastic sheets 31 is provided with an inner fixing member 32, the inner fixing member 32 is used to connect the inner sides of the conductive elastic sheets 31, one end of the inner fixing member 32 is provided with a first limiting surface 321 for limiting the plug-in connector 21, and the other end is provided with a second limiting surface 322 for limiting the conductive rod in the switch. In the embodiment, the inner fixing member 32 is a round rod member.

[0037] With reference to Figure 1 and Figure 3 To ensure the sealing of the connection between the electric conductor 2 and the connecting piece 3, the connecting piece 3 further comprises an outer sealing sleeve 33, all the electrically conductive elastic sheets 31 are arranged inside the outer sealing sleeve 33, and the outer sealing sleeve 33 is in interference fit with the plug-in port 11. To facilitate the interference fit between the outer sealing sleeve 33 and the plug-in port 11, the sidewall of the plug-in port 11 is a reversed conical surface from the opening, and the outer sealing sleeve 33 is provided with an outer guide conical surface 331 on the outside of one end corresponding to the plug-in port 11. In this embodiment, the material of the outer sealing sleeve 33 is silicone.

[0038] With reference to Figures 3-4 The outer side of one end of the electrically conductive elastic sheet 31 is fixed with a first elastic hoop 34, and the outer side of the other end is fixed with a second elastic hoop 35. The inner side of the outer sealing sleeve 33 is provided with a first installation groove 332 corresponding to the first elastic hoop 34 and a second installation groove 333 corresponding to the second elastic hoop 35. The openings at both ends of the inner side of the outer sealing sleeve 33 are gradually expanded from inside to outside to facilitate the installation of the electrically conductive elastic sheet 31. The first elastic hoop 34 and the second elastic hoop 35 are elastic hoops with openings, which can produce inward deformation under pressure. After the electrically conductive elastic sheet 31 is installed in place, the first elastic hoop 34 is reset and adapted to be clamped with the first installation groove 332, and the second elastic hoop 35 is reset and adapted to be clamped with the second installation groove 333, thereby improving the connection strength of the electrically conductive elastic sheet 31 and the outer sealing sleeve 33, and avoiding the phenomenon of sliding or even disengaging of the electrically conductive elastic sheet 31 in the outer sealing sleeve 33.

[0039] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An inlet and outlet casing, characterized in that: include: Sleeve body (1); A conductor (2) is arranged inside the sleeve body (1), with one end extending out of the sleeve body (1) and the other end being arranged inside the sleeve body (1) and forming a plug connector (21); A connecting piece (3) is conductive, one end of which is used for clamping with the plug connector (21), and the other end of which is used for clamping with the conductive rod in the switch; An inserting port (11) is provided at one end of the sleeve body (1) close to the inserting connector (21) for inserting one end of the connecting member (3), and the inserting connector (21) is exposed in the inserting port (11).

2. The inlet and outlet bushing according to claim 1, characterized in that: It also includes a capacitor (4), which is arranged on the outside of the conductor (2) and the inside of the sleeve body (1).

3. The inlet and outlet bushing according to claim 2, characterized in that: The capacitor (4) is fixed to the outside of the conductor (2) via a supporting member (5).

4. The inlet and outlet bushing according to claim 3, characterized in that: The support member (5) comprises an inner support sleeve (51) and an outer support sleeve (52) fixed to the outside of the inner support sleeve (51); the inner support sleeve (51) is fixedly sleeved on the conductor (2); and the inner support sleeve (51) is fixedly sleeved on the capacitor (4).

5. The inlet and outlet bushing according to claim 1, characterized in that: The sleeve body (1) is provided with a mounting portion (12) at one end close to the connecting piece, and further comprises a flange pressing plate (6) for pressing the mounting portion (12) against a position to be installed.

6. A connector for an inlet and outlet bushing according to any one of claims 1 to 5, characterized in that: The connecting piece (3) comprises two or more conductive elastic sheets (31) that are spaced apart and enclose a circle, and all the conductive elastic sheets (31) can be clamped on the outside of the plug connector (21).

7. The connector for an inlet and outlet bushing according to claim 6, characterized in that: An inner fixing member (32) is provided on the inner side of all the conductive elastic sheets (31), and a first limiting surface (321) for limiting the position of the plug connector (21) and a second limiting surface (322) for limiting the position of the conductive rod in the switch are provided on the inner fixing member (32).

8. The connector for an inlet and outlet bushing according to claim 7, characterized in that: It also includes an outer sealing sleeve (33), all the conductive elastic sheets (31) are arranged on the inner side of the outer sealing sleeve (33), and the outer sealing sleeve (33) is interference-fitted with the plug-in port (11).

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