Disconnecting switch wiring terminal
By machining the conductive rod and wiring board of the isolating switch terminals separately, and locking the rotary locking is achieved through threaded screw assembly and fixing parts, the defects such as trachoma and pores in the casting process in the prior art are solved, the conductive effect and processing yield are improved, and the assembly process is simplified.
Patent Information
- Application Number
- CN202420583939.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The existing isolating switch terminals are easily processed through integrated cast blanks, which are prone to defects such as trachoma and pores, which will affect the conductivity and processing yield, and the assembly process is cumbersome.
The conductive rod and the terminal block are respectively machined. Thread segments are set on the conductive rod and threaded holes are opened on the terminal block. The stop-rotation lock is achieved through thread rotation assembly and fixtures, avoiding defects in the casting process.
The conductive effect is improved, defects such as trachoma and pores are avoided, the assembly process is simplified, and the processing yield is improved.
Smart Images
Figure CN222775151U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of conductive connection, in particular to an isolating switch wiring terminal. Background Art
[0002] The isolating switch terminal is an important conductor component used for external wiring of isolating switch products. Its structure and conductive performance have a great impact on the overall isolating switch products. Figure 1-3 As shown, it includes a conductive rod 1 and a terminal block 2, which are integrally cast and processed as a whole. In terms of appearance and structure, a groove is made at the connection between the conductive rod 1 and the terminal block 2, and a bushing is inserted after the gasket is embedded to cooperate with the top of the terminal box at the lower end. The bottom of the conductive rod 1 is limited by two retaining springs to complete the vertical limit of the terminal and meet the axial free rotation. However, the conductive rod 1 and the terminal block 2 of this structure are integrally cast and processed as a whole. Since the main extension directions of the conductive rod 1 and the terminal block 2 are perpendicular, the molten metal does not flow smoothly during casting, which is prone to defects such as sand holes and pores, which greatly affects the overall conductivity and processing yield of the terminal. In addition, the limiting method makes the assembly process more complicated. Utility Model Content
[0003] The utility model aims to provide an isolating switch terminal, which is used to solve the problem that the existing isolating switch terminal is easy to have sand holes, air holes and the like in the processing of integral casting blanks, thereby affecting the overall conductivity and processing yield.
[0004] The utility model adopts the following technical scheme: an isolating switch terminal, comprising a conductive rod and a terminal block, wherein the conductive rod is a machined prefabricated rod body, a threaded section is arranged on the conductive rod, the terminal block is a machined prefabricated plate body, a threaded hole is provided on the terminal block for screwing with the threaded section, and a fixing piece is further arranged between the conductive rod and the terminal block to realize anti-rotation locking between the two.
[0005] The isolating switch wiring terminal of the utility model is a new type of isolating switch wiring terminal. The conductive rod and the wiring board of the isolating switch wiring terminal of the utility model are machined blanks, and there are no internal or surface defects such as sand holes and air holes. The wiring board and the conductive rod are screwed together through threads, and then the wiring board is fixed to the conductive rod through a fixing piece to realize the assembly of the two. The connection position of the conductive rod and the wiring board can also be in close contact, avoiding the problems of sand holes, air holes and the like that are easy to occur in the original one-piece casting blank processing, so that the conductive effect is good.
[0006] Furthermore, the fixing member includes an upper screw passing through the terminal block and radially pressing the conductive rod. The anti-rotation locking structure is simple and easy to use by passing through the upper screw passing through the terminal block and radially pressing the conductive rod.
[0007] Furthermore, the conductive rod is provided with a hole or a groove, and the top screw is inserted into the hole or the groove of the conductive rod to achieve anti-rotation locking. The conductive rod is provided with a hole or a groove at a fixed position, and the threaded section of the conductive rod will not be damaged when the anti-rotation locking is performed, compared with directly pressing against the outer surface of the conductive rod, and the locking effect is better.
[0008] Furthermore, a limiting structure for limiting the downward movement of the sleeve in the axial direction after the sleeve is inserted is provided on the conductive rod below the wiring board. The limiting structure is provided on the conductive rod to ensure that the terminal box remains in a fixed position after the sleeve is inserted, thereby ensuring the stability of the fit between the sleeve and the conductive rod.
[0009] Furthermore, the limiting structure includes a limiting pin arranged in the radial direction of the conductive rod and arranged below the shaft sleeve after the shaft sleeve is inserted. The limiting structure through the limiting pin is simple and easy to use.
[0010] Furthermore, the conductive rod is provided with a stop structure for cooperating with the sleeve above the limit pin. The stop structure stops the sleeve after it is inserted, ensuring good coordination of the structure, and the limit pin is used to limit the position so that the assembly effect of the two structures is better.
[0011] Furthermore, the blocking structure includes an inverted cone section disposed between the terminal block on the conductive rod and the limiting pin. The inverted cone section is used for limiting, which is convenient to cooperate, has a good limiting effect, and is easy to manufacture. The inverted cone section and the limiting pin cooperate together to make the terminal box stable and reliable.
[0012] Furthermore, the threaded section of the conductive rod is arranged at the end of the conductive rod, and a rain shield is arranged on the top of the conductive rod to shield the threaded assembly. The threaded section of the conductive rod is arranged at the end of the conductive rod, and a rain shield is arranged on the top to prevent the threaded assembly from being damaged after water enters, thereby affecting the conductive effect, and to prevent the threaded assembly from rusting and affecting the use effect.
[0013] Furthermore, the rain shield comprises a cover plate, which is fixed to the top of the conductive rod by fixing bolts to cover the threaded assembly. This arrangement has a simple structure, is easy to manufacture, and is easy to disassemble and replace.
[0014] Furthermore, a sealing gasket is arranged between the cover plate and the top of the conductive rod. The sealing gasket is arranged between the cover plate and the top of the conductive rod to ensure good sealing of the shielding. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the traditional disconnector terminal;
[0016] Figure 2 for Figure 1 Left view of;
[0017] Figure 3for Figure 1 A top view of
[0018] Figure 4 It is a structural schematic diagram of the first embodiment of the isolating switch wiring terminal of the utility model;
[0019] Figure 5 for Figure 1 Right view of;
[0020] Figure 6 for Figure 4 A schematic diagram of the structure of the wiring board in FIG.
[0021] Figure 7 for Figure 4 Schematic diagram of the structure used in conjunction with the terminal box;
[0022] Figure 8 for Figure 7 Structural diagram of AA perspective;
[0023] Fig. 9 for Figure 8 Enlarged view of point I in the middle.
[0024] In the figure: 1. Conductive rod; 2. Terminal block; 3. Top screw; 4. Limit pin; 5. Sealing gasket; 6. Cover plate; 7. Fixing bolt; 8. Bushing; 9. Terminal box. DETAILED DESCRIPTION
[0025] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.
[0026] Specific embodiment 1 of the isolating switch terminal of the utility model:
[0027] In order to more clearly illustrate the structure and application scenarios of the isolating switch wiring terminal, this embodiment is described in detail with reference to the case where the isolating switch wiring terminal and the terminal box are used in combination.
[0028] The isolating switch wiring terminal of the utility model is as follows Figure 4-9 As shown, a disconnector terminal comprises a conductive rod 1 and a terminal block 2, wherein the conductive rod 1 is a machined prefabricated rod body, a threaded section is provided at the top of the conductive rod 1, the main body of the terminal block 2 is a machined prefabricated plate body with a rectangular structure, an arc-shaped structure is extended from the front end, a through hole is provided on the terminal block 2 at the arc-shaped structure, the through hole is a threaded hole, the conductive rod 1 and the terminal block 2 are screwed together by threading, a top screw hole is provided on the threaded hole of the terminal block 2 and the threaded section of the conductive rod 1, and an upper top screw 3 passes through the terminal block 2 and extends into the conductive rod 1 to realize the anti-rotation locking of the conductive rod 1 and the terminal block 2.
[0029] In this embodiment, the conductive rod 1 is set as an inverted cone structure at the lower end of the threaded section, and a countersunk hole is set at the conductive rod 1 at the lower end of the inverted cone structure. The inverted cone structure and the countersunk hole are used to cooperate with the inverted cone structure at the upper end of the sleeve 8 to achieve a blocking effect after the conductive rod 1 is inserted into the sleeve 8 and the terminal box 9, and then the limiting pin 4 is inserted into the countersunk hole to achieve the limiting effect between the conductive rod 1 and the lower end of the sleeve 8.
[0030] Specifically, a rain shield is provided on the top of the conductive rod 1, and the rain shield includes a cover plate 6. The area of the cover plate 6 is larger than the through hole of the terminal block 2. The cover plate 6 is placed on the top of the conductive rod 1. A sealing gasket 5 is provided between the cover plate 6 and the top of the conductive rod 1. The top of the conductive rod 1 has an opening. The cover plate 6 and the sealing gasket 5 are fixed to the top of the conductive rod 1 by fixing bolts 7 to cover the threaded assembly of the conductive rod 1 and the terminal block 2 to prevent the threaded assembly from being damaged after water enters, thereby affecting the conductive effect, and preventing the threaded assembly from rusting and affecting the use effect.
[0031] When the isolating switch terminal of the utility model is used, the conductive rod 1 and the terminal block 2 are fastened together by threaded assembly before assembly, a top screw hole is opened from one side of the terminal block 2 to the inside of the conductive rod 1, and then the conductive rod 1 and the terminal block 2 are assembled tightly with the top screw 3 to form a terminal, a hole is opened at the top of the terminal, and the cover plate 6 and the sealing gasket 5 are assembled on the top of the terminal through the fixing bolts 7 to form a rainproof seal. During assembly, the terminal is passed through the shaft sleeve 8 and the top of the terminal box 9 along the direction of the conductive rod 1 until the end of the conductive rod 1 is inserted into the lower circular hole of the terminal box 9, and the shaft sleeve 8 is stopped from moving upward by the inverted cone structure at the upper end of the conductive rod 1, and the lower end of the conductive rod 1 is matched with the chamfer of the hole of the lower circular hole of the terminal box 9, and the limit pin 4 is inserted into the countersunk hole to tighten, so that the vertical direction limit of the terminal can be completed.
[0032] Through the above description of the specific embodiment 1 of the isolating switch terminal of the utility model, it can be seen that the isolating switch terminal of the utility model is provided with a threaded section on the conductive rod, and a threaded hole that is screwed and matched with the threaded section is opened on the terminal board. An upper screw is also arranged between the conductive rod and the terminal board to achieve anti-rotation locking between the two. The terminal is a machined blank and does not have internal or surface defects such as sand holes and air holes. The conductive rod is a machined prefabricated rod body, and the terminal board is a machined prefabricated plate body. The connection position of the conductive rod and the terminal board can also be in close contact, avoiding the problems of sand holes and air holes that are prone to occur in the original one-piece casting blank processing, so that the conductive effect is good.
[0033] Of course, the isolating switch terminal of the present invention is not limited to the above-mentioned embodiments. The following also lists several other implementations of the isolating switch terminal based on the design concept of the present invention.
[0034] For example, in other embodiments, different from the above-mentioned embodiment 1, a through hole is opened on the conductive rod, and a corresponding through hole is opened on the terminal board. After the conductive rod and the terminal board are screwed together, a wedge pin is inserted through the through hole to achieve anti-rotation locking.
[0035] For example, in other implementations, different from the above-mentioned embodiment 1, a pin hole is formed on the conductive rod, and a position limiting function is achieved below the shaft sleeve by inserting an elastic pin into the pin hole.
[0036] For another example, in other embodiments, different from the above-mentioned embodiment 1, a threaded section protruding from the terminal block is provided on the conductive rod, a cap with an outer diameter larger than the through hole of the terminal block is provided on the top of the conductive rod, and a threaded blind hole is provided in the cap, which is screwed with the protruding threaded section of the conductive rod to achieve shielding of the threaded assembly of the conductive rod and the terminal block.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.
Claims
1. A disconnector terminal, comprising a conductive rod (1) and a terminal block (2), characterized in that: The conductive rod (1) is a machined prefabricated rod body, a threaded section is provided on the conductive rod (1), the terminal board (2) is a machined prefabricated plate body, a threaded hole is provided on the terminal board (2) and is screwed together with the threaded section, and a fixing piece is also arranged between the conductive rod (1) and the terminal board (2) to achieve anti-rotation locking between the two.
2. The disconnector terminal according to claim 1, characterized in that: The fixing member comprises an upper pressing screw (3) which passes through the terminal block (2) and radially presses the conductive rod (1).
3. The disconnector terminal according to claim 2, characterized in that: The conductive rod (1) is provided with a hole or a groove, and the upper top screw (3) extends into the hole or the groove of the conductive rod (1) to achieve anti-rotation locking.
4. The disconnector terminal according to claim 1, characterized in that: A limiting structure is provided on the conductive rod (1) below the wiring board (2) for limiting the downward movement of the shaft sleeve (8) in the axial direction after the shaft sleeve (8) is inserted.
5. The disconnector terminal according to claim 4, characterized in that: The limiting structure comprises a limiting pin (4) arranged in the radial direction of the conductive rod (1) and used for being arranged below the shaft sleeve (8) after the shaft sleeve (8) is inserted.
6. The disconnector terminal according to claim 5, characterized in that: The conductive rod (1) is provided with a stop structure above the limit pin (4) for cooperating with the shaft sleeve (8).
7. The disconnector terminal according to claim 6, characterized in that: The blocking structure comprises an inverted cone section arranged between a terminal block (2) and a limiting pin (4) on the conductive rod (1).
8. The disconnector terminal according to any one of claims 1 to 7, characterized in that: The threaded section of the conductive rod (1) is arranged at the end of the conductive rod (1), and a rain shield for shielding the threaded assembly position is arranged at the top of the conductive rod (1).
9. The disconnector terminal according to claim 8, characterized in that: The rain shield comprises a cover plate (6), which is fixed to the top of the conductive rod (1) by means of fixing bolts (7) to cover the threaded assembly.
10. The disconnector terminal according to claim 9, characterized in that: A sealing gasket (5) is provided between the cover plate (6) and the top of the conductive rod (1).