One-key sequential control handcart interlocking device

Abstract

The utility model relates to a one-key sequential control handcart interlocking device. The technical problem to be solved by the utility model is to provide a one-key sequential control handcart interlocking device. According to the technical scheme, the grounding switch locking device comprises a grounding switch operating shaft, an operating shaft baffle, a handcart locking assembly and a linkage rod, the handcart locking assembly comprises a locking frame, a linkage plate, a main shaft assembly, a locking plate, a spring positioning screw and a reset spring, the main shaft assembly comprises a main rotating shaft, the locking frame comprises a locking frame rear plate, and the linkage plate is arranged on the locking frame rear plate. The locking frame rear plate is vertically bent inwards to form a locking frame main plate, a locking frame front plate and a locking frame side plate in sequence, and locking plate limiting holes are formed in the locking frame rear plate and the locking frame front plate. The one-key sequential control handcart interlocking device has the advantages that the operation shaft baffle is directly connected with the handcart locking assembly, operation steps are simplified, operation time is shortened, a user can control a plurality of linkage devices at the same time through one-key operation, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinet interlocking devices, in particular to a one-button sequential control trolley interlocking device. Background Art

[0002] In order to ensure the safety of high-voltage switchgear operation, we require that the trolley cannot be operated to close the grounding switch after leaving the test position. When the grounding switch is in the closed state, the trolley cannot leave the test position to enter the vehicle. The existing trolleys include chassis trolleys that can move inside the switchgear, such as Figure 8 and 9 As shown, the chassis includes a chassis frame 60, a crossbeam assembly 61, a chassis transmission device 62 arranged in the chassis frame 60 and passing through the crossbeam assembly 61, and a trolley interlocking bracket 62 fixed to the side of the chassis frame 60. The trolley interlocking bracket 62 includes an interlocking bracket mounting portion 65 that is in contact with the side of the chassis frame 60. The interlocking bracket mounting portion 65 is bent vertically outward in sequence to form an interlocking bracket locking portion 66 arranged parallel to the interlocking bracket mounting portion 65. The interlocking bracket locking portion 66 is provided with an interlocking bracket locking port 67. At present, the interlocking devices of the grounding switch and the trolley are various in form, complex in structure and poor in reliability, which can easily lead to misoperation and damage to components, and the linkage with other interlocking devices is poor, and the convenience of operation and safety cannot be taken into account at the same time. In view of this, the existing trolley interlocking device is improved and optimized. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the present invention is to provide a one-button sequential control trolley interlocking device.

[0004] The technical solution adopted by the one-button sequential control trolley interlocking device of the utility model is characterized in that it includes an earthing switch operating shaft, an operating shaft baffle placed at the front end of the earthing switch operating shaft and movable up and down, a trolley locking assembly, and a connecting rod. The trolley locking assembly includes a locking frame fixed to the switch cabinet body, a linkage plate, a main shaft assembly, a lock plate, a spring positioning screw and a return spring. The main shaft assembly includes a main rotating shaft. The locking frame includes a locking frame rear plate, and the locking frame rear plate is vertically bent inward to form a locking frame main plate, a locking frame front plate and a locking frame side plate in sequence. The locking frame rear plate and the locking frame front plate are provided with lock plate limiting holes that are connected front and back. The locking frame main plate and the locking frame side plates are provided with main shaft mounting holes that are connected left and right and used for the main shaft assembly to be placed;

[0005] The lock plate includes a lock plate tongue which is inserted into the lock plate limiting hole and can be laterally inserted into the locking mouth of the interlock bracket, a lock plate docking portion which is placed outside the lock frame rear plate and is parallel to the lock frame rear plate, the lock plate lock tongue is provided with a lock tongue action socket, the spring positioning screw passes through the lock plate docking portion and is fixed to the lock frame rear plate, the return spring is sleeved on the spring positioning screw and one end of the return spring abuts against the lock plate docking portion and the other end abuts against the lock frame rear plate, the linkage plate is provided with a linkage plate docking hole, a linkage plate rotation hole sleeved on the main rotating shaft and a linkage plate driving block inserted into the lock tongue action socket, the upper end of the linkage rod is connected to the operating shaft baffle, and the lower end of the linkage rod is connected to the linkage plate docking hole.

[0006] The trolley locking assembly further comprises a limit pin, a pin mounting hole is provided on the lock plate lock tongue, the limit pin is inserted into the pin mounting hole and is placed between the rear plate of the locking frame and the front plate of the locking frame.

[0007] The main shaft assembly also includes a sleeve sleeved on both ends of the main shaft, the sleeve is placed in the main shaft mounting hole and the two ends of the sleeve are fixed by a retaining spring, and the sleeve is provided with a retaining spring limiting groove for limiting the retaining spring.

[0008] A first spring positioning groove for positioning the return spring is provided on the outer side of the rear plate of the locking frame, and a second spring positioning groove for positioning the return spring is provided on the inner side of the lock plate docking portion.

[0009] The locking plate limiting hole and the locking tongue action socket are both square structures.

[0010] The advantages of the one-button sequential trolley interlocking device of the utility model are: the operating shaft baffle is directly connected to the trolley locking assembly, which simplifies the operation steps and time. Through the "one-button" operation, the user can control multiple linkage devices at the same time, which is more convenient to operate; the trolley locking assembly ensures that the trolley can only be operated when specific conditions are met. The structure is compact, the action is stable and reliable, the response is fast and powerful, it is easy to assemble, and the product safety is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 This is a structural diagram of the utility model's one-button sequential control trolley interlocking device;

[0013] Figure 2 This is a structural diagram of the handcart locking assembly of the utility model;

[0014] Figure 3 This is a structural diagram of the locking frame of the utility model;

[0015] Figure 4 It is a structural diagram of the main shaft assembly of the utility model;

[0016] Figure 5 It is a structural diagram of the lock plate of the utility model;

[0017] Figure 6 It is a structural diagram of the linkage plate of the utility model;

[0018] Figure 7 This is a schematic diagram of the docking of the one-button handcart interlocking device and the chassis vehicle of the utility model;

[0019] Figure 8 It is a structural diagram of the chassis vehicle of the utility model;

[0020] Figure 9 It is a structural schematic diagram of the interlocking bracket of the handcart of the present utility model. DETAILED DESCRIPTION

[0021] like Figure 1-7As shown, the one-button sequential control trolley interlocking device of the present invention comprises an earthing switch operating shaft 1, an operating shaft baffle 2 placed at the front end of the earthing switch operating shaft 1 and movable up and down, a trolley locking assembly 3, and a linkage rod 4. The trolley locking assembly 3 comprises a locking frame 7 fixed to the switch cabinet body, a linkage plate 8, a main shaft assembly 9, a lock plate 10, a spring positioning screw 11 and a return spring 12. The main shaft assembly 9 comprises a main rotating shaft 13, the locking frame 7 comprises a locking frame rear plate 14, and the locking frame rear plate 14 is vertically The inner bending forms a locking frame main plate 15, a locking frame front plate 16 and a locking frame side plate 17 in sequence, and the locking frame rear plate 14 and the locking frame front plate 16 are provided with a lock plate limiting hole 18 that is connected to the front and back, and the locking frame main plate 15 and the locking frame side plate 17 are provided with a spindle mounting hole 19 that is connected to the left and right and is used for the spindle assembly 9 to be placed; the lock plate 10 includes a lock plate lock tongue 25 that is inserted into the lock plate limiting hole 18 and can be laterally inserted into the locking port 67 of the interlocking bracket, a lock plate lock tongue 25 that is placed outside the locking frame rear plate 14 and is connected to the lock The lock plate docking portion 26 is arranged parallel to the rear plate 14 of the stop frame, and the lock plate lock tongue 25 is provided with a lock tongue action socket 27. The spring positioning screw 11 passes through the lock plate docking portion 26 and is fixed to the rear plate 14 of the lock frame. The return spring 12 is sleeved on the spring positioning screw 11 and one end thereof abuts against the lock plate docking portion 26 and the other end abuts against the rear plate 14 of the lock frame. The linkage plate 8 is provided with a linkage plate docking hole 21, a linkage plate rotation hole 22 sleeved on the main shaft 13 and a locking tongue inserted into the locking tongue. The linkage plate in the action socket 27 drives the block 23, the upper end of the linkage rod 4 is connected to the operating shaft baffle 2, the lower end of the linkage rod 4 is connected to the linkage plate docking hole 21, and the operating shaft baffle is directly connected to the trolley locking assembly, which simplifies the operation steps and time. Through the "one-button" operation, the user can control multiple linkage devices at the same time, which is more convenient to operate; the trolley locking assembly ensures that the operation of the trolley can only be carried out when specific conditions are met. The structure is compact, the action is stable and reliable, the response is fast and powerful, it is easy to assemble, and the product safety is higher.

[0022] The trolley locking assembly 3 also includes a limit pin 30, and a pin mounting hole 29 is provided on the lock plate lock tongue 25. The limit pin 30 is inserted into the pin mounting hole 29 and placed between the lock frame rear plate 14 and the lock frame front plate 16. The lock plate lock tongue 25 plays a limiting role when it moves back laterally, preventing the lock plate lock tongue 25 from over-restoring due to the large spring restoring force, resulting in falling off, and providing higher safety.

[0023] The spindle assembly 9 also includes a sleeve 32 sleeved on both ends of the main shaft 13. The sleeve 32 is placed in the spindle mounting hole 19 and the two ends of the sleeve 32 are fixed by a retaining spring 33. The sleeve 32 is provided with a retaining spring limiting groove 34 for limiting the retaining spring 33, which makes the rotation smoother and smoother.

[0024] A first spring positioning groove 36 for positioning the return spring 12 is provided on the outer side of the locking frame rear plate 14, and a second spring positioning groove 37 for positioning the return spring 12 is provided on the inner side of the lock plate docking portion 26, so that the spring action is smoother.

[0025] The locking plate limiting hole 18 and the locking tongue actuation socket 27 are both square structures, which are more stable and more reliable.

[0026] The micro switch 5 is also included above the operating shaft baffle 2. The operating shaft baffle 2 is moved downward so that the front end of the grounding switch operating shaft 1 is opened to perform the closing operation. The linkage rod 4 pushes the linkage plate 8. The linkage plate 8 rotates with the main shaft assembly 9 so that the linkage plate driving block 23 inserted into the lock tongue action socket 27 drives the lock plate 10 to move horizontally so that the end of the lock plate 10 is inserted into the interlock bracket locking port 67 of the interlock bracket locking portion 66. At this time, the return spring 12 is in a compressed state to achieve locking of the chassis frame 60, and the handcart is not The vehicle can leave the test position and enter the vehicle; the operating shaft baffle 2 is moved upward, so that the front end of the earthing switch operating shaft 1 is closed and cannot be operated. At this time, the connecting rod 4 drives the linkage plate 8 upward, and the linkage plate driving block 23 of the linkage plate 8 drives the lock plate 10 and cooperates with the restoring force of the return spring 12 to make the lock plate 10 move out of the locking mouth 67 of the interlocking bracket, thereby unlocking the chassis frame 60. At the same time, due to the upward movement of the operating shaft baffle 2 and the impact of the micro switch 5, the micro switch receives a signal, further reminding the operator, which greatly improves the safety of use.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A one-button sequential control trolley interlocking device, characterized by: The invention comprises an earthing switch operating shaft (1), an operating shaft baffle (2) disposed at the front end of the earthing switch operating shaft (1) and movable up and down, a trolley locking assembly (3), and a linkage rod (4); the trolley locking assembly (3) comprises a locking frame (7) fixed on the switch cabinet body, a linkage plate (8), a main shaft assembly (9), a locking plate (10), a spring positioning screw (11) and a return spring (12); the main shaft assembly (9) comprises a main rotating shaft (13); the locking frame (7) ) includes a locking frame rear plate (14), the locking frame rear plate (14) is bent vertically inward to form a locking frame main plate (15), a locking frame front plate (16) and a locking frame side plate (17) in sequence, the locking frame rear plate (14) and the locking frame front plate (16) are provided with locking plate limiting holes (18) that are connected to each other in front and back, and the locking frame main plate (15) and the locking frame side plate (17) are provided with spindle mounting holes (19) that are connected to each other in left and right and are used for inserting the spindle assembly (9); The lock plate (10) includes a lock plate tongue (25) which is inserted into the lock plate limiting hole (18) and can be laterally inserted into the interlock bracket locking hole (67), a lock plate docking portion (26) which is placed outside the locking frame rear plate (14) and arranged parallel to the locking frame rear plate (14), a lock plate action socket (27) is provided on the lock plate tongue (25), the spring positioning screw (11) is fixed to the locking frame rear plate (14) after passing through the lock plate docking portion (26), and the return spring (12) is sleeved. The spring positioning screw (11) has one end abutted against the lock plate docking portion (26) and the other end abutted against the rear plate (14) of the locking frame. The linkage plate (8) is provided with a linkage plate docking hole (21), a linkage plate rotation hole (22) sleeved on the main rotating shaft (13), and a linkage plate driving block (23) inserted into the lock tongue action socket (27). The upper end of the linkage rod (4) is connected to the operating shaft baffle (2), and the lower end of the linkage rod (4) is connected to the linkage plate docking hole (21).

2. The one-button sequential control trolley interlocking device according to claim 1 is characterized in that: The trolley locking assembly (3) further includes a limit pin (30), a pin mounting hole (29) is provided on the lock plate lock tongue (25), and the limit pin (30) is inserted into the pin mounting hole (29) and is placed between the locking frame rear plate (14) and the locking frame front plate (16).

3. The one-touch handcart interlocking device according to claim 1, characterized in that: The spindle assembly (9) further comprises a sleeve (32) sleeved on both ends of the main rotating shaft (13), the sleeve (32) being placed in the spindle mounting hole (19) and the two ends of the sleeve (32) being fixed by a retaining spring (33), and the sleeve (32) being provided with a retaining spring limiting groove (34) for limiting the retaining spring (33).

4. The one-button sequential control trolley interlocking device according to claim 2 is characterized in that: A first spring positioning groove (36) for positioning the return spring (12) is provided on the outer side of the locking frame rear plate (14), and a second spring positioning groove (37) for positioning the return spring (12) is provided on the inner side of the lock plate docking portion (26).

5. The one-button sequential control trolley interlocking device according to claim 1 is characterized in that: The locking plate limiting hole (18) and the locking tongue action socket (27) are both square structures.

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