Isolating switch

Abstract

The utility model discloses an isolating switch. The isolating switch is characterized in that a body is provided with an accommodating cavity; the operating mechanism is accommodated in the accommodating cavity; according to the operating mechanism, one end of a driving shaft is linked with a handle; the shifting fork is in linkage with the driving shaft, the shifting fork drives the sliding block to slide, the movable contact assembly on the sliding block is connected with or separated from the static contact assembly in the containing cavity, the driving shaft and the shifting fork are arranged in a non-axis mode, and the horizontal distance from the rotating center of the driving shaft to the sliding block is smaller than the horizontal distance from the rotating center of the shifting fork to the sliding block; the torsion spring is located on the side, away from the shifting fork, of the sliding block, one end of the torsion spring is connected with the shifting fork, and the other end of the torsion spring is connected with the body. According to the utility model, the driving shaft and the shifting fork are arranged in different axes, and the ratio of the resisting arm to the power arm is adjusted, so that the handle can drive the driving shaft with small force, the driving shaft drives the shifting fork to rotate, and under the action of the torsion spring, the opening and closing operation is realized, compared with the prior art, the rotation amplitude of the driving shaft is reduced, and the labor-saving effect is realized; and the operation is more convenient.

Description

Technical Field

[0001] The utility model specifically relates to an isolating switch. Background Art

[0002] For example, the Chinese utility model patent, with the announcement number "CN215731464U" and the patent name "A fast opening and closing isolating switch", discloses an operating mechanism, which includes a drive shaft, a rocker arm and a torsion spring. The drive shaft is linked to the rocker arm, and the deformation of the torsion spring generates a reset force for the rocker arm, so that the rocker arm drives the moving contact bracket to move, thereby achieving the opening and closing effect.

[0003] Although this structure can reduce the volume of the entire disconnector (specifically reduce the length), it is found in actual use that the driving force of the handle is greater due to the reduction in volume. The reason is that the driving shaft and the rocker arm are coaxially arranged, resulting in an unreasonable ratio of the resistance arm and the power arm, which affects the operation of the handle. Therefore, how to reduce the driving force of the handle and make the opening and closing operation easier has become an urgent problem that technicians in this field need to solve. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an isolating switch.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an isolating switch, which includes:

[0006] A main body, wherein the main body is provided with a receiving cavity;

[0007] The operating mechanism is accommodated in the accommodating cavity; the operating mechanism includes:

[0008] A driving shaft, one end of which is linked to the handle;

[0009] The shift fork is linked with the drive shaft, the shift fork drives the slider to slide, the moving contact component on the slider is connected or separated from the static contact component in the accommodating cavity, the drive shaft and the shift fork are arranged with different axes, and the horizontal distance from the rotation center of the drive shaft to the slider is smaller than the horizontal distance from the rotation center of the shift fork to the slider;

[0010] The torsion spring is located on the side of the slider away from the shift fork, one end of the torsion spring is connected to the shift fork, and the other end of the torsion spring is connected to the body.

[0011] By setting different axis centers between the drive shaft and the shift fork, the ratio of the resistance arm to the power arm is adjusted, so that the handle can drive the drive shaft with a small force, and the drive shaft drives the shift fork to rotate. Under the action of the torsion spring, the opening and closing operations are realized. Compared with the prior art, this setting reduces the rotation amplitude of the drive shaft, thereby achieving a labor-saving effect and making the operation easier.

[0012] Among them, one of the driving shaft and the shift fork is provided with a waist-shaped hole, and the other of the driving shaft and the shift fork is provided with a driving protrusion matched with the waist-shaped hole, and the driving protrusion slides in the waist-shaped hole.

[0013] The coordination between the waist-shaped hole and the driving protrusion, whether the driving protrusion cooperates with the side wall of the waist-shaped hole to drive the rotation, or the side wall of the waist-shaped hole cooperates with the driving protrusion to drive the rotation, can achieve a linkage effect, and the stroke coordination between the driving protrusion and the waist-shaped hole can meet the restoring force given by the torsion spring and meet the opening and closing operations of the operating mechanism.

[0014] The main body includes a middle seat, the middle seat is provided with a fixed column, the fixed column is provided with an eccentric hole, the shift fork is sleeved on the fixed column and is rotatably arranged relative to the fixed column, the drive shaft extends into the eccentric hole and is rotatably arranged relative to the eccentric hole.

[0015] By setting the fixed column, an eccentric setting is formed, making the processing more convenient.

[0016] The axis of the eccentric hole is located on a radial vertical path from the axis of the fixed column to the sliding block.

[0017] The position setting of the eccentric hole can better calculate the ratio of the resistance arm and the power arm formed by the drive shaft and the fork, resulting in a better adjustment effect.

[0018] The slider is provided with an indicator plate, the top surface of the body is provided with a perspective window, and the indicator plate is located vertically below the perspective window.

[0019] The setting of the indicator board forms an indicating effect. By moving the slider, the operator can know the corresponding position relationship through the perspective window.

[0020] Wherein, a reinforcement part is provided at the connection between the indicator plate and the sliding block.

[0021] The arrangement of the reinforcement portion creates a reinforcement effect and improves the strength of the slider.

[0022] It also includes a micro switch, which is accommodated in the accommodating cavity and is located on the movement track of the slider.

[0023] The setting of the micro switch forms a sampling signal to improve the intelligent control effect.

[0024] The stationary contact assembly includes a wiring terminal, the wiring terminal includes a wiring cavity, and a wear-resistant portion is provided on the bottom surface of the wiring cavity.

[0025] The provision of the wear-resistant portion improves the fixing effect of the wire or the conductive bar.

[0026] The stationary contact assembly comprises a stationary contact piece, the main body comprises a middle seat, the middle seat is provided with a positioning groove, and the stationary contact piece is accommodated in the positioning groove.

[0027] The setting of the positioning groove enables the static contact piece to achieve a better fixing effect.

[0028] It also includes a lock, the body includes a base, the base is provided with a guide groove and a lock groove, the guide groove is connected with the lock groove, the lock is accommodated in the lock groove and extends toward the guide groove.

[0029] When the base is matched with the guide rail, the fixing effect between the base and the guide rail is achieved through the lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0031] Figure 2 It is a cross-sectional view of Example 1 of the utility model;

[0032] Figure 3 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0033] Figure 4 It is a partial structural schematic diagram of Example 1 of the utility model;

[0034] Figure 5 yes Figure 4 A top view of

[0035] Figure 6 It is a top view of the middle seat in Embodiment 1 of the utility model;

[0036] Figure 7 It is a partial structural schematic diagram of Example 1 of the utility model;

[0037] Figure 8 It is a schematic structural diagram of the upper cover of Example 1 of the utility model;

[0038] Fig. 9 It is a structural schematic diagram of the static contact assembly of Example 1 of the utility model. DETAILED DESCRIPTION

[0039] Embodiment 1:

[0040] An isolating switch, such as the Figure 1-9 As shown, including:

[0041] The body 100 is provided with a receiving chamber. The body 100 includes an upper cover 11, a middle seat 12, and a base 13. The middle seat 12 is located between the upper cover 11 and the base 13, and the three can be connected by bolts. The upper cover 11 and the middle seat 12 cooperate to form an upper receiving chamber 101, the middle seat 12 and the base 13 cooperate to form a lower receiving chamber 102, and the upper receiving chamber 101 and the lower receiving chamber 102 cooperate to form the entire receiving chamber.

[0042] The operating mechanism is accommodated in the accommodating cavity; the operating mechanism includes:

[0043] The drive shaft 14 is accommodated in the upper accommodating chamber 101. The drive shaft 14 can be located in the upper accommodating chamber 101 as a whole, and then the handle extends into the upper accommodating chamber 101 to cooperate with the drive shaft 14 to form a linkage. The drive shaft 14 can also be partially located in the upper accommodating chamber 101, and the remaining part passes through the upper cover 11 and extends to the outside to form a matching effect through the handle. Here, the linkage mode between the drive shaft 14 and the handle can be adjusted according to actual needs. The upper end of the drive shaft 14 is linked with the handle to form a matching effect. Here, the drive shaft 14 and the handle are rotationally linked, that is, the rotation of the handle can drive the drive shaft 14 to rotate.

[0044] The shift fork 15 is accommodated in the upper accommodating chamber 101, specifically located above the top surface of the middle seat 12. The shift fork 15 is linked with the drive shaft 14. When the drive shaft 14 rotates, the drive shaft 14 drives the shift fork 15 to move, and the shift fork 15 drives the slider 17 to slide, so that the moving contact component on the slider 17 is connected or separated from the static contact component. Here, part of the slider 17 is located in the upper accommodating chamber 101, and the other part of the slider 17 is located in the lower accommodating chamber 102. The moving contact component 18 and the static contact component 19 are both accommodated in the lower accommodating chamber 102, forming a separation between the operating mechanism and the contact. The moving contact component 18 is linked with the slider 17 to achieve the effect of sliding together. The drive shaft 14 and the shift fork 15 are set with different axes. Specifically, the central axis of the drive shaft 14 and the central axis of the shift fork 15 are not the same axis. The horizontal distance L1 from the rotation center of the drive shaft 14 to the slider 17 is smaller than the horizontal distance L2 from the rotation center of the fork 15 to the slider 17. The size of the horizontal distance here can be adjusted according to actual conditions. Technical personnel in this field can calculate the appropriate value according to the actual calculation formula, thereby adjusting the ratio of the resistance arm and the power arm to achieve a labor-saving driving effect.

[0045] Torsion spring 16, torsion spring 16 is located on the side of slider 17 away from fork 15, for example, fork 15 is located in front of slider 17, then torsion spring 16 is located in the rear of slider 17, fork 15, torsion spring 16, drive shaft 14, slider 17 form a multi-link structure, the corresponding position relationship can be adjusted according to actual needs, so as to meet the effect of torsion spring 16 driving slider 17 to move during energy storage and release. One end of torsion spring 16 is connected to fork 15, and the other end of torsion spring 16 is connected to body 100, where the other end of torsion spring 16 can be connected and fixed to upper cover 11, and the other end of torsion spring 16 can also be connected and fixed to middle seat 12. In this embodiment, torsion spring 16 is located in upper accommodating cavity 101.

[0046] By setting different axis centers between the drive shaft 14 and the fork 15, the ratio of the resistance arm to the power arm is adjusted, so that the handle can drive the drive shaft 14 with a small force, and the drive shaft 14 drives the fork 15 to rotate. Under the action of the torsion spring 16, the opening and closing operations are realized. Compared with the prior art, this setting reduces the rotation amplitude of the drive shaft 14, thereby achieving a labor-saving effect and making the operation easier.

[0047] Specifically, as attached Figure 1-6 As shown, one of the drive shaft 14 and the shift fork 15 is provided with a waist-shaped hole 20, and the other of the drive shaft 14 and the shift fork 15 is provided with a driving protrusion 21 that cooperates with the waist-shaped hole 20, and the driving protrusion 21 slides in the waist-shaped hole 20. The cooperation between the waist-shaped hole 20 and the driving protrusion 21, whether the driving protrusion 21 cooperates with the side wall of the waist-shaped hole 20 to drive the rotation, or the side wall of the waist-shaped hole 20 cooperates with the driving protrusion 21 to drive the rotation, can achieve a linkage effect, and the travel cooperation between the driving protrusion 21 and the waist-shaped hole 20 satisfies the restoring force given by the torsion spring 16, and satisfies the opening and closing operation of the operating mechanism. When the drive shaft 14 is provided with a waist-shaped hole 20, the fork 15 is provided with a driving protrusion 21, and the driving protrusion 21 is located in the waist-shaped hole 20. When the drive shaft 14 rotates, the side wall of the waist-shaped hole 20 abuts against the driving protrusion 21, thereby achieving the effect of the drive shaft 14 driving the fork 15 to rotate; conversely, when the drive shaft 14 is provided with a driving protrusion 21, the fork 15 is provided with a waist-shaped hole 20. When the drive shaft 14 rotates, the driving protrusion 21 abuts against the inner wall of the waist-shaped hole 20, thereby achieving the effect of the drive shaft 14 driving the fork 15 to rotate. The length of the waist-shaped hole 20 can be adjusted according to actual needs.

[0048] Specifically, as attached Figure 1-6 As shown, when the waist-shaped hole 20 is located on the driving shaft 14 , the driving shaft 14 is provided with a cam portion 141 , and the waist-shaped hole 20 is located on the cam portion 141 .

[0049] Specifically, as attached Figure 1-6 As shown, the cooperation between the shift fork 15 and the slider 17 is that the shift fork 15 is provided with a driving block 151, and the slider 17 is provided with a driving groove 172. When the driving block 151 rotates and abuts against the driving groove, the slider 17 is driven to slide horizontally left and right.

[0050] Specifically, as attached Figure 1-6 As shown, a fixing column 121 is provided on the top surface of the middle seat 12, and an eccentric hole 122 is provided on the fixing column 121. The shift fork 15 is sleeved on the fixing column 121 and is rotatably arranged relative to the fixing column 121. The drive shaft 14 extends into the eccentric hole 122 and is rotatably arranged relative to the eccentric hole 122. The eccentric arrangement is formed by the arrangement of the fixing column 121, which makes the processing more convenient.

[0051] Specifically, as attached Figure 1-6As shown, the axis of the eccentric hole 122 is located on the radial vertical path from the axis of the fixed column 121 to the slider 17. The position setting of the eccentric hole 122 can better calculate the ratio of the resistance arm and the power arm formed by the drive shaft 14 and the fork 15, thereby forming a better adjustment effect. Here, the axis of the eccentric hole 122 is located on the vertical distance path from the axis of the fixed column 121 to the slider 17.

[0052] Specifically, as attached Figure 8 As shown, a limiting groove 111 is provided on the side of the upper cover 11 facing the middle seat 12 , and the side wall of the limiting groove 111 is located on the rotation track of the side wall of the cam portion 141 , so that the limiting groove 111 forms a rotation limiting effect.

[0053] Specifically, as attached Figure 1-6 As shown, the slider 17 is provided with an indicator plate 171, and the upper cover 11 is provided with a perspective window 112, and the indicator plate 171 is located vertically below the perspective window 112. The setting of the indicator plate 171 forms an indication effect, and the operator can know the corresponding position relationship through the perspective window 112 through the movement of the slider 17. The indicator plate 171 indicates the open or closed state. Here, the indication mark can be any one of words, patterns and letters, or a combination of any two or more.

[0054] Specifically, as attached Figure 1-6 As shown, a reinforcing portion 173 is provided at the connection between the indicator plate 171 and the slider 17. The arrangement of the reinforcing portion 173 forms a reinforcing effect and improves the strength of the slider 17. The indicator plate 171 and the slider 17 are integrally formed.

[0055] Specifically, as attached Figure 1-6 As shown, it also includes a micro switch 22, which is accommodated in the accommodating cavity. The micro switch 22 is located in the upper accommodating cavity 101, and is specifically connected and fixed to the middle seat 12. The micro switch 22 is located on the motion track of the slider 17. The setting of the micro switch 22 forms a sampling signal to improve the intelligent control effect. Here, the micro switch 22 specifically cooperates with the trigger structure below the indicator plate 171 to form a trigger effect.

[0056] Specifically, as attached Fig. 9 As shown, the stationary contact assembly 19 includes a wiring terminal 191, and the wiring terminal 191 includes a wiring cavity 192. The bottom surface of the wiring cavity 192 is provided with a wear-resistant portion. The provision of the wear-resistant portion improves the fixing effect of the wire or the conductive bar. Here, the wear-resistant portion can be a fine spline groove, or a groove formed by a combination of several small protrusions.

[0057] Specifically, as attached Fig. 9As shown, the static contact assembly 19 includes a static contact piece 193, and a positioning groove 123 is provided on the side of the middle seat 12 facing the base 13, and the static contact piece 193 is accommodated in the positioning groove 123. The setting of the positioning groove 123 enables the static contact piece 193 to achieve a better fixing effect. Here, the static contact piece 193 is located between the middle seat 12 and the base 13.

[0058] Specifically, as attached Figure 3 As shown, the base 13 also includes a lock 23, the base 13 is provided with a guide rail groove 131 and a lock groove 132, the guide rail groove 131 is connected to the lock groove 132, and the lock 23 is accommodated in the lock groove 132 and extends toward the guide rail groove 131. When the base 13 is matched with the guide rail, the lock 23 realizes the fixing effect between the base 13 and the guide rail.

Claims

1. An isolating switch, characterized in that: include: A main body, wherein the main body is provided with a receiving cavity; The operating mechanism is accommodated in the accommodating cavity; the operating mechanism includes: A driving shaft, one end of which is linked to the handle; The shift fork is linked with the drive shaft, the shift fork drives the slider to slide, the moving contact component on the slider is connected or separated from the static contact component in the accommodating cavity, the drive shaft and the shift fork are arranged with different axes, and the horizontal distance from the rotation center of the drive shaft to the slider is smaller than the horizontal distance from the rotation center of the shift fork to the slider; The torsion spring is located on the side of the slider away from the shift fork, one end of the torsion spring is connected to the shift fork, and the other end of the torsion spring is connected to the body.

2. The isolating switch according to claim 1, characterized in that: One of the driving shaft and the shift fork is provided with a waist-shaped hole, and the other of the driving shaft and the shift fork is provided with a driving protrusion matched with the waist-shaped hole, and the driving protrusion slides in the waist-shaped hole.

3. A disconnector according to claim 1 or 2, characterized in that: The main body includes a middle seat, the middle seat is provided with a fixed column, the fixed column is provided with an eccentric hole, the shift fork is sleeved on the fixed column and is rotatably arranged relative to the fixed column, and the drive shaft extends into the eccentric hole and is rotatably arranged relative to the eccentric hole.

4. A disconnector according to claim 3, characterized in that: The axis center of the eccentric hole is located on a radial vertical path from the axis center of the fixed column to the sliding block.

5. The isolating switch according to claim 1, characterized in that: The slider is provided with an indication plate, the top surface of the body is provided with a perspective window, and the indication plate is located vertically below the perspective window.

6. A disconnector according to claim 5, characterized in that: A reinforcement portion is provided at the connection between the indicator plate and the slide block.

7. The isolating switch according to claim 1, characterized in that: It also includes a micro switch, which is accommodated in the accommodating cavity and is located on the movement track of the slider.

8. The isolating switch according to claim 1, characterized in that: The stationary contact assembly comprises a wiring terminal, the wiring terminal comprises a wiring cavity, and a wear-resistant portion is arranged on the bottom surface of the wiring cavity.

9. The isolating switch according to claim 1, characterized in that: The stationary contact assembly comprises a stationary contact piece, and the main body comprises a middle seat. The middle seat is provided with a positioning groove, and the stationary contact piece is accommodated in the positioning groove.

10. The isolating switch according to claim 1, characterized in that: It also includes a lock, the body includes a base, the base is provided with a guide groove and a lock groove, the guide groove is connected with the lock groove, the lock is accommodated in the lock groove and extends toward the guide groove.

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