A vertical opening type stainless steel isolating switch base

Abstract

A vertical opening type stainless steel isolating switch base belongs to the isolating switch accessory field, and its structure comprises a base body, a positioning notch, and an insulator connecting hole. The positioning notch is located at the lower end of the base body. The two insulator connecting holes are spaced apart and located on the top surface of the base body. The bottom ends of the two insulator connecting holes extend into the positioning notch. The insulator connecting end is threadedly connected in the insulator connecting hole. After the preliminary thread connection of the insulator connecting end and the insulator connecting hole, the vertical opening type stainless steel isolating switch base is provided with a transmission rod. By rotating the transmission rod, the inner clamping mechanism in the driving seat is driven to clamp and position the insulator connecting end in the two insulator connecting holes through the moving action, and the double connection and fixation are formed by thread connection and cooperation with the inner clamping, thereby effectively improving the firmness of the connection and preventing the connection from loosening when other accessory assemblies or external forces are applied.

Description

Technical Field

[0001] This utility model is a vertically opening stainless steel disconnect switch base, belonging to the field of disconnect switch accessories. Background Technology

[0002] A disconnecting switch is a switching device primarily used for isolating power supplies, switching operations, and connecting and disconnecting small-current circuits; it lacks arc-extinguishing capabilities. When in the open position, the contacts of a disconnecting switch have an insulation distance meeting specified requirements and a clear disconnection mark. When in the closed position, it can carry current under normal circuit conditions and current under abnormal conditions for a specified time. It is generally used as a high-voltage disconnecting switch, i.e., a disconnecting switch with a rated voltage of 1kV or higher. Its working principle and structure are relatively simple, but due to its large usage and high reliability requirements, it has a significant impact on the design, construction, and safe operation of substations and power plants. The main characteristic of a disconnecting switch is that it lacks arc-extinguishing capability and can only open and close circuits when there is no load current.

[0003] The existing vertical opening stainless steel disconnect switch base is a one-piece molded structure, which is connected to the insulator by thread or mechanical clamping. Although the former is convenient to install, it is easy to cause the connection to loosen when other accessories are assembled. The latter is easy to fall off when the connection is subjected to external force. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a vertically opening stainless steel disconnect switch base. This addresses the problem that existing vertically opening stainless steel disconnect switch bases are integrally molded structures, with threaded or mechanical clamping connections to the insulators. While the former is convenient for installation, it can easily cause loosening at the connection point when assembling other accessories, and the latter is prone to detachment when the connection point is subjected to external force.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a vertically opening stainless steel disconnect switch base, the structure of which includes a base body, a positioning groove, and an insulator connection hole; the positioning groove is located at the lower end of the base body; two insulator connection holes are spaced apart and located on the top surface of the base body, the bottom ends of the two insulator connection holes extend into the positioning groove, and an insulator connection end is threaded into the insulator connection hole;

[0006] The rear part of the inner wall of the top surface of the positioning slot is provided with a drive seat that simultaneously covers the bottom ends of the two insulator connection holes. The center of the rear end face of the drive seat is provided with a drive groove, and a transmission rod is rotatably embedded in the drive groove. The drive seat is provided with an inner clamping mechanism that is connected to the transmission rod. The inner clamping mechanism communicates with the insulator connection hole and clamps and positions the insulator connection ends in the two insulator connection holes simultaneously by means of movement.

[0007] Furthermore, in order to simultaneously clamp and fix the two insulator connection ends, the inner clamping mechanism includes a horizontally arranged transmission channel with both ends communicating with the two insulator connection holes, a bidirectional screw located in the transmission channel, and clamping blocks threaded to both ends of the bidirectional screw. A transmission assembly is provided in the middle section of the bidirectional screw, and the end of the transmission rod is connected to the transmission assembly to drive the bidirectional screw to rotate through the transmission assembly.

[0008] Furthermore, to improve the clamping stability, the end of the clamping block away from the bidirectional screw extends into the corresponding insulator connection hole and is provided with a threaded arc-shaped groove.

[0009] Furthermore, in order to enable the clamping block to move axially under the threaded drive of the bidirectional screw, the inner wall of the transmission channel is provided with a slide rail to restrict the rotation of the clamping block.

[0010] Furthermore, in order to drive the transmission rod to rotate via a tool, a driving part is provided at the end of the transmission rod away from the transmission assembly, and the outer wall of the driving part is provided with a tool action groove.

[0011] Furthermore, in order to adapt to different types of tools, the tool's working groove is one of the following: straight, star-shaped, or cross-shaped.

[0012] The beneficial effects of this utility model are as follows: After the insulator connection end is initially threadedly connected to the insulator connection hole on the vertical opening stainless steel disconnect switch base, the transmission rod is rotated so that the transmission rod drives the inner clamping mechanism in the drive seat to clamp and position the insulator connection end in the two insulator connection holes simultaneously through the movement action. The threaded connection and the inner clamping form a double connection and fixation, which effectively improves the firmness of the connection and prevents the connection from loosening when other accessories are assembled or when it is subjected to external forces. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a vertically opening stainless steel disconnect switch base according to the present invention;

[0015] Figure 2 This is a bottom view of the structure of a vertically opening stainless steel disconnect switch base according to the present invention.

[0016] Figure 3 This is a bottom cross-sectional view of the vertical opening stainless steel disconnect switch base of this utility model.

[0017] Figure 4 This is a schematic diagram of the clamping block structure;

[0018] Figure 5 This is a cross-sectional structural diagram of the transmission assembly.

[0019] In the diagram: base body-1, positioning slot-2, insulator connection hole-3, drive seat-21, drive slot-22, transmission rod-23, transmission channel-24, bidirectional screw-25, clamping block-26, transmission assembly-27, arc groove-261, three-way positioning housing-271, driving helical gear-272, driven helical gear-273. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example 1

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a technical solution for a vertically opening stainless steel disconnect switch base: its structure includes a base body 1, a positioning slot 2, and an insulator connection hole 3; the positioning slot 2 is located at the lower end of the base body 1; two insulator connection holes 3 are spaced apart and located on the top surface of the base body 1, the bottom ends of the two insulator connection holes 3 extend into the positioning slot 2, and an insulator connection end is connected to the insulator connection hole 3 by a thread;

[0022] The base body 1 is made of stainless steel, which has the advantages of being rust-proof and corrosion-resistant.

[0023] like Figure 2 As shown, the rear part of the inner wall of the top surface of the positioning slot 2 is provided with a drive seat 21 that simultaneously covers the bottom ends of the two insulator connection holes 3. The center of the rear end face of the drive seat 21 is provided with a drive groove 22. A transmission rod 23 is rotatably embedded in the drive groove 22. The drive seat 21 is provided with an inner clamping mechanism that is connected to the transmission rod 23. The inner clamping mechanism communicates with the insulator connection holes 3 and clamps and positions the insulator connection ends in the two insulator connection holes 3 simultaneously by means of movement.

[0024] The drive seat 21 and the base body 1 are fixedly connected by integral molding or welding, preferably integral molding, to improve the stability of the connection. A bearing is provided on the drive seat 21 to rotate and position the transmission rod 23, so as to prevent axial displacement when the transmission rod 23 rotates and drives the inner clamping mechanism to operate.

[0025] like Figure 3As shown, in order to simultaneously clamp and fix the connection ends of two insulators, the inner clamping mechanism includes a horizontally arranged transmission channel 24 with both ends communicating with the connection holes 3 of the two insulators, a bidirectional screw 25 rotatably located in the transmission channel 24, and clamping blocks 26 threadedly connected to both ends of the bidirectional screw 25. A transmission assembly 27 is provided in the middle section of the bidirectional screw 25, and the end of the transmission rod 23 is connected to the transmission assembly 27 so as to drive the bidirectional screw 25 to rotate through the transmission assembly 27.

[0026] Among them, the bidirectional screw 25 refers to a rod-shaped structure with opposite threads at the left and right ends, and the transmission assembly 27 includes a three-way positioning housing 271 and a driving helical gear 272 and a driven helical gear 273 located in the three-way positioning housing 271.

[0027] Among them, such as Figure 5 As shown, the middle section of the bidirectional screw 25 rotates to the lower part of the three-way positioning housing 271 and is connected to the driven helical gear 273. The bottom end of the transmission rod 23 rotates into the upper part of the three-way positioning housing 271 and is connected to the driving helical gear 272. The driving helical gear 272 meshes with the driven helical gear 273 to perform transmission work.

[0028] like Figure 4 As shown, in order to improve the clamping firmness, the end of the clamping block 26 away from the bidirectional screw 25 extends into the corresponding insulator connection hole 3, and is provided with a threaded arc-shaped groove 261.

[0029] In order to enable the clamping block 26 to move axially under the threaded drive of the bidirectional screw 25, the inner wall of the transmission channel 24 is provided with a slide rail to restrict the rotation of the clamping block 26.

[0030] Principle: The vertically opening stainless steel disconnect switch base is equipped with a mechanism that, after the insulator connection end is connected to the insulator connection hole 3, rotates the transmission rod 23, causing the transmission rod 23 to drive the inner clamping mechanism in the drive base 21 to clamp and position the insulator connection ends in the two insulator connection holes 3 simultaneously through the movement action. This effectively improves the firmness of the connection and prevents the connection from loosening when other accessories are assembled or when external forces are applied.

[0031] The movement action is as follows: the transmission rod 23 drives the bidirectional screw 25 to rotate through the transmission assembly 27. With the positioning and cooperation of the slide rail, the bidirectional screw 25 simultaneously drives the clamping blocks 26 at both ends to extend into the two insulator connection holes 3 respectively. The clamping blocks 26 contact the insulator connection end through the threaded arc groove 261 on them, thereby completing the internal clamping work. Example 2

[0032] For the sake of brevity, the parts that are the same as those in other embodiments will not be described again. The main description is of the structure that is different from other embodiments of this utility model. In order to drive the transmission rod 23 to rotate by a tool, the end of the transmission rod 23 away from the transmission assembly 27 is provided with a driving part, and the outer wall of the driving part is provided with a tool action groove.

[0033] To accommodate different types of tools, the tool's working groove is one of the following: straight, star-shaped, or cross-shaped.

[0034] The foregoing description of the internal clamping mechanism illustrates the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vertically opening stainless steel disconnect switch base, characterized in that: Its structure includes a base body (1); The positioning slot (2) is located at the lower end of the base body (1); Two insulator connection holes (3) are provided at intervals and located on the top surface of the base body (1). The bottom ends of the two insulator connection holes (3) extend into the positioning groove (2). The insulator connection holes (3) are threaded with insulator connection ends. The upper inner wall of the positioning slot (2) is provided with a drive seat (21) that simultaneously covers the bottom ends of the two insulator connection holes (3). The center of the rear end face of the drive seat (21) is provided with a drive groove (22). A transmission rod (23) is rotatably embedded in the drive groove (22). The drive seat (21) is provided with an inner clamping mechanism that is connected to the transmission rod (23). The inner clamping mechanism is connected to the insulator connection hole (3) and clamps and positions the insulator connection ends in the two insulator connection holes (3) simultaneously by means of movement.

2. The vertically opening stainless steel disconnect switch base according to claim 1, characterized in that: The internal clamping mechanism includes a horizontally arranged transmission channel (24) that is connected to two insulator connection holes (3) at both ends, a bidirectional screw (25) located in the transmission channel (24), and clamping blocks (26) threaded to both ends of the bidirectional screw (25). A transmission assembly (27) is provided in the middle section of the bidirectional screw (25), and the end of the transmission rod (23) is connected to the transmission assembly (27) to drive the bidirectional screw (25) to rotate through the transmission assembly (27).

3. The vertically opening stainless steel disconnect switch base according to claim 2, characterized in that: The end of the clamp (26) away from the bidirectional screw (25) extends into the corresponding insulator connection hole (3) and is provided with a threaded arc groove (261).

4. The vertically opening stainless steel disconnect switch base according to claim 2, characterized in that: The inner wall of the transmission channel (24) is provided with a slide rail to restrict the rotation of the clamp (26).

5. A vertically opening stainless steel disconnect switch base according to claim 2, characterized in that: The transmission rod (23) has a drive section at the end away from the transmission assembly (27), and the outer wall of the drive section has a tool action groove.

6. A vertically opening stainless steel disconnect switch base according to claim 5, characterized in that: The tool's working groove is one of the following: straight, star-shaped, or cross-shaped.

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