A detachable switch tube moving die

Abstract

The utility model discloses a detachable switch tube movable pipe core, including movable end cover, S type elastic element and movable electrically conductive rod, one end of S type elastic element is located in the inner ring of movable end cover, movable electrically conductive rod passes through S type elastic element, the one end of movable electrically conductive rod who sets up in S type elastic element is provided with internal thread hole, the utility model discloses, through the first bellow ring of movable end cover channel inside to the support of S type elastic element, will second fixed ring fixed, through the limiting ring to S type elastic element position limiting, when S type elastic element is telescopic, keep S type elastic element stable, S type elastic element is made of bellow and has telescopic nature, drive movable electrically conductive rod to move, through movable contact connection end and second bellow ring cooperation, to the first fixed ring fixed of S type elastic element, through internal thread hole convenient and movable contact assembly, after movable contact damage, after dismounting, change movable contact can, save the cost.

Description

Technical Field

[0001] This utility model relates to the field of vacuum switch technology, specifically to a replaceable switch tube moving core. Background Technology

[0002] In power distribution networks, switchgear, which performs control or protection functions, is an essential and indispensable piece of equipment in the circuit, playing the role of closing and opening circuits. In recent years, due to the significant advantages of vacuum switches (high breaking capacity, environmentally friendly and non-explosive, small contact gap, extremely long electrical life, etc.), they have gained an overwhelming position in the application of medium-voltage circuits.

[0003] The core component of a vacuum switch is the vacuum switch tube inside the housing. Current vacuum switch tubes include a housing, an upper electrostatic conductor and a lower electrostatic conductor housed within the housing. The upper and lower electrostatic conductors are connected by contacts. Corrugated tubes are fitted onto the outer walls of the upper and lower electrostatic conductors. All components are sealed together to form a closed vacuum cavity, with a vacuum break between the upper and lower electrostatic conductors.

[0004] Traditional moving contacts are welded as a single unit; if damaged, the entire vacuum switch needs to be replaced (mainly due to damage to the moving contact).

[0005] This application designs a replaceable moving contact chip for a switch tube. When the moving contact is damaged, the moving contact can be disassembled and replaced, thus saving costs. Utility Model Content

[0006] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0007] In view of the problems existing in the use of the above and / or replaceable switch tube moving core, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a replaceable switch tube moving core, which can be easily assembled with the moving contact through the internal thread hole. After the moving contact is damaged, it can be disassembled and replaced, thus saving costs.

[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0010] A replaceable switching transistor core, comprising:

[0011] Moving end cap;

[0012] An S-shaped elastic element, one end of which is disposed on the inner ring of the moving end cap;

[0013] A movable conductive rod passes through an S-shaped elastic element, and one end of the movable conductive rod is provided with an internal threaded hole.

[0014] In a preferred embodiment of the replaceable switch tube core described in this utility model, the S-shaped elastic element is made of a corrugated tube, and a first fixing ring and a second fixing ring are respectively provided at both ends of the S-shaped elastic element.

[0015] As a preferred embodiment of the replaceable switch tube moving core of this utility model, the shaft portion of the moving end cover is provided with a channel, and a first corrugated tube ring is provided inside the channel, the first corrugated tube ring being supported on the inner wall of the second fixing ring.

[0016] As a preferred embodiment of the replaceable switch tube moving core of this utility model, the shaft portion of the moving end cover is provided with a limiting ring, the inner diameter of the limiting ring is larger than the outer diameter of the S-shaped elastic element, and the side wall of the moving end cover is provided with a sealing groove.

[0017] As a preferred embodiment of the replaceable switch tube moving core of this utility model, one end of the moving conductive rod is provided with a moving contact connection end, and a second corrugated ring pressed against the outer periphery of the moving contact connection end is provided.

[0018] As a preferred embodiment of the replaceable switch tube moving core of this utility model, one end of the moving conductive rod is provided with a connecting end, and the connecting end extends out of an S-shaped elastic element.

[0019] Compared with the prior art, the advantages of this utility model are as follows: This replaceable switch tube moving core supports the S-shaped elastic element through the first corrugated ring inside the moving end cover channel, fixes the second fixing ring, and limits the S-shaped elastic element through the limiting ring. When the S-shaped elastic element expands and contracts, it remains stable. The S-shaped elastic element is made of corrugated tube and has elasticity, which drives the moving conductive rod to move. The moving contact connection end cooperates with the second corrugated ring to fix the first fixing ring of the S-shaped elastic element, maintaining the stability between the S-shaped elastic element and the moving conductive rod. It is easy to assemble with the moving contact through the internal threaded hole. After the moving contact is damaged, it can be disassembled and replaced, saving costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a schematic diagram of the overall structure of a replaceable switch tube moving core according to the present invention;

[0022] Figure 2 This is a schematic diagram of the exploded portion structure of a replaceable switch tube core according to the present invention.

[0023] Figure 3 This is a cross-sectional view of the detachable switch tube core of this utility model.

[0024] Figure 4 This is a schematic diagram of the moving end cap of a replaceable switch tube moving core according to the present invention.

[0025] Figure 5 This is a schematic diagram of the S-shaped elastic element of a replaceable switch tube core according to the present invention.

[0026] Figure 6 This is a schematic diagram of the moving conductive rod part of a replaceable switch tube moving core according to the present invention.

[0027] Figure 7 This utility model relates to a replaceable switching transistor drive core. Figure 3 Schematic diagram of part a in the middle;

[0028] Figure 8 This utility model relates to a replaceable switching transistor drive core. Figure 3 Schematic diagram of part b in the middle.

[0029] 100. Moving end cap; 110. Channel; 120. Limiting ring; 200. S-shaped elastic element; 210. First fixing ring; 220. Second fixing ring; 300. Moving conductive rod; 310. Moving contact connection end; 311. Internal threaded hole; 320. Connection end; 400. First bellows ring; 500. Second bellows ring. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure will not be enlarged to scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0033] This utility model provides a replaceable switch tube moving core, which can be easily assembled with the moving contact through an internal threaded hole. After the moving contact is damaged, it can be disassembled and replaced, thus saving costs.

[0034] Figures 1-8 The diagram shown is a structural schematic of one embodiment of a replaceable switch tube moving core according to this utility model. Please refer to [link / reference]. Figures 1-8 The main body of a replaceable switch moving core of this embodiment includes a moving end cap 100, an S-shaped elastic element 200 and a moving conductive rod 300.

[0035] The movable end cap 100 facilitates connection with the outer shell. The S-shaped elastic element 200 is supported by the first bellows ring 400 inside the channel 110, and the second fixing ring 220 is fixed. The S-shaped elastic element 200 is limited by the limiting ring 120. The S-shaped elastic element 200 remains stable when it expands and contracts. Specifically, in this embodiment, the shaft portion of the movable end cap 100 is provided with a channel 110, and the first bellows ring 400 is provided inside the channel 110. The first bellows ring 400 is supported by the inner wall of the second fixing ring 220. The shaft portion of the movable end cap 100 is provided with a limiting ring 120. The inner diameter of the limiting ring 120 is larger than the outer diameter of the S-shaped elastic element 200. The side wall of the movable end cap 100 is provided with a sealing groove 101.

[0036] The S-shaped elastic element 200 is made of a bellows and has elasticity, which drives the moving conductive rod 300 to move. Specifically, one end of the S-shaped elastic element 200 is disposed in the inner ring of the moving end cover 100. In this embodiment, the S-shaped elastic element 200 is made of a bellows, and the two ends of the S-shaped elastic element 200 are respectively provided with a first fixing ring 210 and a second fixing ring 220.

[0037] The movable conductive rod 300 cooperates with the second bellows ring 500 through the movable contact connection end 310 to fix the first fixing ring 210 of the S-shaped elastic element 200, maintaining the stability between the S-shaped elastic element 200 and the movable conductive rod 300. It is convenient to assemble with the movable contact through the internal threaded hole 311. Specifically, the movable conductive rod 300 passes through the S-shaped elastic element 200. The movable conductive rod 300 is provided with an internal threaded hole 311 at one end of the S-shaped elastic element 200. In this embodiment, the movable conductive rod 300 is provided with a movable contact connection end 310 at one end. The second bellows ring 500 is provided on the outer periphery of the movable contact connection end 310 and presses against the outer periphery of the first fixing ring 210. The movable conductive rod 300 is provided with a connection end 320 at one end, and the connection end 320 extends out of the S-shaped elastic element 200.

[0038] Combination Figures 1-8 The specific usage process of the replaceable switch moving core of this embodiment is as follows: the S-shaped elastic element 200 is supported by the first corrugated ring 400 inside the channel 110 of the moving end cover 100, and the second fixing ring 220 is fixed. The S-shaped elastic element 200 is limited by the limiting ring 120. When the S-shaped elastic element 200 expands and contracts, it remains stable. The S-shaped elastic element 200 is made of corrugated tube and has elasticity, which drives the moving conductive rod 300 to move. The moving contact connection end 310 cooperates with the second corrugated ring 500 to fix the first fixing ring 210 of the S-shaped elastic element 200, maintaining the stability between the S-shaped elastic element 200 and the moving conductive rod 300. It is convenient to assemble with the moving contact through the internal threaded hole 311. After the moving contact is damaged, it can be disassembled and replaced, saving costs.

[0039] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A replaceable switching transistor core, characterized in that, include: Moving end cap (100); An S-shaped elastic element (200) is provided at one end of the moving end cap (100) on the inner ring; A movable conductive rod (300) passes through an S-shaped elastic element (200), and the movable conductive rod (300) is provided with an internal threaded hole (311) at one end of the S-shaped elastic element (200).

2. The replaceable switching transistor core according to claim 1, characterized in that, The S-shaped elastic element (200) is made of a bellows, and a first fixing ring (210) and a second fixing ring (220) are respectively provided at both ends of the S-shaped elastic element (200).

3. The replaceable switching transistor core according to claim 2, characterized in that, The moving end cap (100) has a channel (110) on its shaft, and a first bellows ring (400) is provided inside the channel (110). The first bellows ring (400) is supported on the inner wall of the second fixing ring (220).

4. The replaceable switching transistor core according to claim 3, characterized in that, The shaft portion of the moving end cover (100) is provided with a limiting ring (120), the inner diameter of the limiting ring (120) is larger than the outer diameter of the S-shaped elastic element (200), and the side wall of the moving end cover (100) is provided with a sealing groove (101).

5. A replaceable switching transistor core according to claim 4, characterized in that, One end of the moving conductive rod (300) is provided with a moving contact connection end (310), and a second corrugated pipe ring (500) is provided on the outer periphery of the moving contact connection end (310) and pressed on the outer periphery of the first fixed ring (210).

6. A replaceable switching transistor core according to claim 5, characterized in that, One end of the moving conductive rod (300) is provided with a connecting end (320), and the connecting end (320) extends out of the S-shaped elastic element (200).

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