Load isolation switch spring operating mechanism

Abstract

The utility model discloses a load isolation switch spring operating mechanism, which relates to the technical field of load isolation switch spring operating mechanisms and comprises a fixing plate, a bearing is fixedly connected to the inner wall of the fixing plate, a rotating shaft is fixedly connected to the inner wall of the bearing, a push plate is fixedly connected to the outer side of the rotating shaft, and a push rod is fixedly connected to the push plate. Through the arrangement of the first spring, the fixing rod, the fixing block, the fixing column, the clamping strip, the in-out groove, the first reset spring and the clamping groove, the load isolation switch spring operating mechanism has the advantages that the first spring is convenient to replace, the tedious replacement of the first spring is avoided, and the blocking head is fixed through the clamping groove, the connecting rod, the clamping block, the limiting groove, the second reset spring, the pushing block and the pressing block; according to the spring operating mechanism of the load isolation switch, the upper blocking head and the lower blocking head can be conveniently replaced, and inconvenience in replacement of the upper blocking head and the lower blocking head is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spring operating mechanisms for load disconnecting switches, and particularly relates to a spring operating mechanism for a load disconnecting switch. Background Technique

[0002] A load disconnecting switch is a device that isolates the de-energized part from the energized part and creates an obvious disconnection point to isolate faulty equipment or perform power outage maintenance. The operating mechanism is an acceleration mechanism that stores energy in a spring and releases it instantaneously, instantaneously connecting and disconnecting a double-break contact structure, regardless of the speed of the operating handle, greatly improving various electrical and mechanical properties.

[0003] In the energy storage spring operating mechanism of the low-voltage disconnecting switch disclosed in the Chinese utility model patent application publication specification CN106783260B, although the energy storage spring operating mechanism uses the elasticity of the spring to realize the opening and closing of the contacts, when the spring elasticity weakens, due to the long-term use of the spring, the elasticity of the spring gradually weakens. When the elasticity of the spring weakens to a certain extent and cannot provide sufficient elastic force, the spring operating mechanism cannot work properly. The replacement of the spring of this device is relatively cumbersome and not convenient enough, and there is a problem that the spring replacement is relatively cumbersome. Moreover, when replacing the upper stop and the lower stop, since the upper stop and the lower stop are prone to friction with the upper cheek plate and the lower cheek plate, and due to the long-term friction, the upper stop and the lower stop will be worn, and serious friction will cause the upper shaft and the lower bearing to shake up and down, thereby affecting the operation of the device. Therefore, the upper stop and the lower stop need to be replaced. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a spring operating mechanism for a load disconnecting switch, which solves the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model is realized through the following technical solutions: It includes a fixing plate, the inner wall of the fixing plate is fixedly connected with a bearing, the inner wall of the bearing is fixedly connected with a rotating shaft, and the outer side of the rotating shaft is fixedly connected with a pushing plate;

[0008] The inner side of the fixing plate is fixedly connected with a fixing rod, a limiting groove is opened in the inner wall of the fixing rod, a clamping strip is slidably connected to the inner wall of the limiting groove, the top of the clamping strip is fixedly connected with a fixing block, the bottom of the fixing block is fixedly connected with a first return spring, the bottom of the first return spring is fixedly connected with a fixing column, and a first spring is slidably connected to the outside of the fixing column;

[0009] A chute is provided at the top of the fixed plate. A sliding shaft is slidably connected to the inner wall of the chute. A fixed stop is slidably connected to the inner wall of the sliding shaft. A second return spring is fixedly connected to the inner wall of the fixed stop. A pushing block is fixedly connected to the top of the second return spring. A connecting rod is fixedly connected to the top of the pushing block. A pressing block is fixedly connected to the top of the connecting rod.

[0010] Optionally, an access slot is provided at the top of the fixed rod. The access slot is rectangular in shape. One end of the card strip has the same shape as the access slot. The shape of the access slot is the same as that of the card slot.

[0011] Optionally, there are two fixing posts, and the fixing posts are distributed on the fixed rod and the sliding shaft.

[0012] Optionally, a card block is slidably connected to the outside of the pushing block. There are four card blocks, and the card blocks are annularly distributed on the pushing block.

[0013] Optionally, the chute is V-shaped. The diameter of the fixed stop is greater than the width of the chute. There are two fixed stops, and the fixed stops are distributed on the upper and lower sides of the rotating shaft.

[0014] Optionally, the length of the card strip is greater than the diameter of the fixing post. There are two card strips, and the number of the fixing blocks is corresponding to the number of the card strips.

[0015] (III) Beneficial Effects

[0016] The present utility model provides a spring operating mechanism for a load disconnecting switch, which has the following beneficial effects:

[0017] 1. For the spring operating mechanism of the load disconnecting switch, through the settings of the first spring, fixed rod, fixed block, fixing post, card strip, access slot, first return spring, and card slot, the spring operating mechanism of the load disconnecting switch is convenient for replacing the first spring, avoiding the cumbersome replacement of the first spring.

[0018] 2. For the spring operating mechanism of the load disconnecting switch, through the settings of the card slot, connecting rod, card block, limiting slot, second return spring, pushing block, and pressing block and fixed stop, the spring operating mechanism of the load disconnecting switch is convenient for replacing the upper stop and the lower stop, avoiding the inconvenience of replacing the upper stop and the lower stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front shaft-side structural schematic diagram of the present utility model;

[0020] Figure 2 is a top-view structural schematic diagram of the present utility model;

[0021] Figure 3This is a schematic diagram of the front sectional structure of the utility model;

[0022] Figure 4 This is the utility model Figure 3 The structural schematic diagram of the place A in it;

[0023] Figure 5 This is the utility model Figure 3 The structural schematic diagram of the place B in it;

[0024] Figure 6 This is the front axonometric structural schematic diagram of the push block of the utility model;

[0025] Figure 7 This is the sectional structural schematic diagram of the fixed column of the utility model;

[0026] Figure 8 This is the sectional structural schematic diagram of the fixed rod of the utility model.

[0027] In the figure: 1, fixed plate; 2, pressing block; 3, fixed stop; 4, rotating shaft; 5, chute; 6, sliding shaft; 7, first spring; 8, fixed rod; 9, fixed block; 10, bearing; 11, fixed column; 12, card strip; 14, access slot; 15, first return spring; 16, card slot; 17, connecting rod; 18, card block; 19, limiting slot; 20, second return spring; 21, push block; 22, push plate. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0029] Embodiment 1

[0030] Please refer to Figures 1 to 8 , the present utility model provides a technical solution: a load disconnecting switch spring operating mechanism, including a fixed plate 1, the inner wall of the fixed plate 1 is fixedly connected with a bearing 10, the inner wall of the bearing 10 is fixedly connected with a rotating shaft 4, and the outside of the rotating shaft 4 is fixedly connected with a push plate 22;

[0031] On the inner side of the fixed plate 1, a fixed rod 8 is fixedly connected. At the top of the fixed rod 8, an access slot 14 is opened. The shape of the access slot 14 is rectangular. One end of the clamping strip 12 has the same shape as the access slot 14. The shape of the access slot 14 is the same as the shape of the clamping slot 16. On the inner wall of the fixed rod 8, a limiting slot 19 is opened. A clamping strip 12 is slidably connected to the inner wall of the limiting slot 19. The length of the clamping strip 12 is greater than the diameter of the fixed column 11. There are two clamping strips 12. The number of fixed blocks 9 is corresponding to the number of clamping strips 12. At the top of the clamping strip 12, a fixed block 9 is fixedly connected. At the bottom of the fixed block 9, a first return spring 15 is fixedly connected. At the bottom of the first return spring 15, a fixed column 11 is fixedly connected. There are two fixed columns 11, which are distributed on the fixed rod 8 and the sliding shaft 6. A first spring 7 is slidably connected to the outside of the fixed column 11;

[0032] On the top of the fixed plate 1, a sliding slot 5 is opened. A sliding shaft 6 is slidably connected to the inner wall of the sliding slot 5. A fixed stop 3 is slidably connected to the inner wall of the sliding shaft 6. A second return spring 20 is fixedly connected to the inner wall of the fixed stop 3. At the top of the second return spring 20, a pushing block 21 is fixedly connected. At the top of the pushing block 21, a connecting rod 17 is fixedly connected. At the top of the connecting rod 17, a pressing block 2 is fixedly connected. Through the settings of the first spring 7, the fixed rod 8, the fixed block 9, the fixed column 11, the clamping strip 12, the access slot 14, the first return spring 15, and the clamping slot 16, a spring operating mechanism of a load disconnecting switch is convenient for replacing the first spring 7 and avoids the cumbersome replacement of the first spring 7.

[0033] During use, press the fixed block 9 to move the clamping strip 12 downward. When the clamping strip 12 reaches the bottom, then rotate the fixed column 11 by ninety degrees to align the clamping strip 12 with the access slot 14 on the fixed rod 8, and then take out the fixed column 11 from the fixed rod 8. Take out the fixed column 11 on the sliding shaft 6 in the same way, so that the first spring 7 can be taken out. Place one end of the new first spring 7 between the two protrusions on the fixed rod 8, then insert the fixed column 11 into the fixed rod 8, press the fixed block 9, when the clamping strip 12 reaches the bottom, then rotate the fixed column 11 by ninety degrees to align the clamping strip 12 with the clamping slot 16, release the fixed block 9, and the first return spring 15 pushes the fixed block 9 upward to make the clamping strip 12 enter the clamping slot 16, and then limit the other end of the first spring 7 in the same way to complete the replacement of the first spring 7.

[0034] Embodiment 2

[0035] Please refer to Figures 1 to 8 , the present utility model provides a technical solution: a spring operating mechanism of a load disconnecting switch, including a fixed plate 1. A bearing 10 is fixedly connected to the inner wall of the fixed plate 1. A rotating shaft 4 is fixedly connected to the inner wall of the bearing 10. A pushing plate 22 is fixedly connected to the outside of the rotating shaft 4;

[0036] A chute 5 is formed at the top of the fixing plate 1. The chute 5 is V-shaped. The diameter of the fixed stop 3 is larger than the width of the chute 5. There are two fixed stops 3, which are distributed on the upper and lower sides of the rotating shaft 4. A sliding shaft 6 is slidably connected to the inner wall of the chute 5. A fixed stop 3 is slidably connected to the inner wall of the sliding shaft 6. A second return spring 20 is fixedly connected to the inner wall of the fixed stop 3. The top of the second return spring 20 is fixedly connected to a pushing block 21. A clamping block 18 is slidably connected to the outside of the pushing block 21. There are four clamping blocks 18, which are annularly distributed on the pushing block 21. The top of the pushing block 21 is fixedly connected to a connecting rod 17. The top of the connecting rod 17 is fixedly connected to a pressing block 2. Through the arrangement of the clamping groove 16, the connecting rod 17, the clamping block 18, the limiting groove 19, the second return spring 20, the pushing block 21, and the pressing block 2, the fixed stop 3 is provided, and a spring operating mechanism for a load disconnector is convenient for replacing the upper stop and the lower stop, avoiding the inconvenience of replacing the upper stop and the lower stop.

[0037] During use, press the pressing block 2 downward. The pressing block 2 pushes the pushing block 21 downward through the connecting rod 17. The second return spring 20 contracts. Under the traction of the pushing block 21, the clamping block 18 withdraws from the limiting groove 19 on the sliding shaft 6, and the fixed stop 3 is removed from the sliding shaft 6. During installation, press the pressing block 2 downward to make the clamping block 18 inside the fixed stop 3. Insert the fixed stop 3 into the sliding shaft 6. Release the pressing block 2, and the second return spring 20 pushes the second return spring 20 upward, so that the pushing block 21 pushes the clamping block 18 into the limiting groove 19 to complete the replacement.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A load isolating switch spring operating mechanism, comprising a fixing plate (1), characterized in that: The inner wall of the fixed plate (1) is fixedly connected to a bearing (10), the inner wall of the bearing (10) is fixedly connected to a rotating shaft (4), and the outer side of the rotating shaft (4) is fixedly connected to a pushing plate (22); A fixing rod (8) is fixedly connected to the inner side of the fixing plate (1), a limiting groove (19) is provided on the inner wall of the fixing rod (8), a clamping strip (12) is slidably connected to the inner wall of the limiting groove (19), a fixing block (9) is fixedly connected to the top of the clamping strip (12), a first return spring (15) is fixedly connected to the bottom of the fixing block (9), a fixing column (11) is fixedly connected to the bottom of the first return spring (15), and a first spring (7) is slidably connected to the outer side of the fixing column (11); The top of the fixed plate (1) is provided with a sliding groove (5), the inner wall of the sliding groove (5) is slidably connected to a sliding shaft (6), the inner wall of the sliding shaft (6) is slidably connected to a fixed stopper (3), the inner wall of the fixed stopper (3) is fixedly connected to a second return spring (20), the top of the second return spring (20) is fixedly connected to a push block (21), the top of the push block (21) is fixedly connected to a connecting rod (17), and the top of the connecting rod (17) is fixedly connected to a pressing block (2).

2. A load isolation switch spring operating mechanism according to claim 1, characterized in that: The top of the fixing rod (8) is provided with an entry and exit slot (14), the entry and exit slot (14) is rectangular in shape, one end of the clamping strip (12) is in the same shape as the entry and exit slot (14), and the entry and exit slot (14) is in the same shape as the clamping slot (16).

3. A load isolation switch spring operating mechanism according to claim 1, characterized in that: There are two fixed columns (11), and the fixed columns (11) are distributed on the fixed rod (8) and the sliding shaft (6).

4. A load isolation switch spring operating mechanism according to claim 1, characterized in that: The outer side of the pushing block (21) is slidably connected with a clamping block (18), the number of the clamping blocks (18) is four, and the clamping blocks (18) are distributed in an annular manner on the pushing block (21).

5. A load isolation switch spring operating mechanism according to claim 1, characterized in that: The shape of the slide groove (5) is V-shaped, the diameter of the fixed stopper (3) is greater than the width of the slide groove (5), there are two fixed stoppers (3), and the fixed stoppers (3) are distributed on the upper and lower sides of the rotating shaft (4).

6. A load isolation switch spring operating mechanism according to claim 1, characterized in that: The length of the clamping strip (12) is greater than the diameter of the fixing column (11), there are two clamping strips (12), and the number of the fixing blocks (9) is opposite to the number of the clamping strips (12).

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