Cover plate assembly of high-voltage test equipment

Abstract

The utility model provides a cover plate assembly of high-voltage test equipment, which belongs to the technical field of high-voltage cover plates and comprises a cover body, a lower embedded ring is embedded at the bottom of the cover body, a plurality of slots are arranged on the inner wall of the lower embedded ring, a cover bottom is inserted into the lower embedded ring from top to bottom, the top of the cover bottom is fixedly connected with a cover top, and a plurality of chutes are arranged on the inner wall of the cover bottom. A plug pin is slidably connected into each sliding groove, the plug pins are movably inserted into the corresponding insertion grooves, an expansion mechanism is arranged in the cover bottom, and the plug pins are pushed by the expansion mechanism to be movably inserted into the insertion grooves so as to fix the position of the cover bottom; the plug-in type structure provided by the scheme is firmer, the cover body, the lower embedded ring and the cover bottom form an integral structure, higher pressure and impact force can be borne, the fixing mode is simpler, the opening mode is more convenient, the direct plug-in type structure reduces abrasion to the sealing ring, cracks are reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage cover plates, and in particular relates to a cover plate assembly for high-voltage testing equipment. Background Art

[0002] The cover assembly of high-voltage test equipment is an important part of high-voltage test equipment. It is mainly used to protect key components inside the equipment, such as transformers, sensors, controllers, etc., from pollution and damage from the external environment. At the same time, the cover assembly also plays a role in aesthetics and dust prevention.

[0003] The Chinese patent with application number CN202320560451.5 in the prior art discloses a self-locking device for the cover of a high-pressure reactor, which relates to the technical field of pressure vessels. The self-locking device includes a C-shaped buckle and a safety pin. The C-shaped buckle can be buckled on the edge of the cover and prevent the cover from being separated from the feeding port. The safety pin is used to lock the C-shaped buckle. The safety pin includes a base, a movable latch, a slot, and a first air guide channel. The upper surface of the base is provided with a slot. The movable latch is inserted into the slot and fits with the inner wall of the slot. The bottom of the slot is connected to the inner side of the feeding port through the first air guide channel. The lower end of the C-shaped buckle is provided with a groove or a through hole. The utility model provides a safety pin. When the reactor is not completely depressurized, the upper end of the movable latch is pushed out of the slot and inserted into the groove or through hole at the lower end of the C-shaped buckle, so that the C-shaped buckle cannot be removed from the edge of the cover, which can solve the problem of potential safety hazards when the cover of the high-pressure reactor is opened under pressure.

[0004] Usually made of metal or engineering plastics, it has certain strength and rigidity and can withstand certain pressure and impact. The cover is generally sealed by screwing on. Long-term use will cause wear of the sealing ring, and eventually lead to a gap between the cover and the high-voltage motor seat, affecting the service life. For this reason, we propose a high-voltage test equipment cover assembly. Utility Model Content

[0005] The utility model aims to provide a cover plate assembly for high-voltage test equipment, aiming to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cover plate assembly for high-voltage testing equipment includes a cover body, a lower embedded ring is embedded in the bottom of the cover body, a plurality of slots are opened on the inner wall of the lower embedded ring, a cover bottom is inserted into the lower embedded ring from top to bottom, a cover top is fixedly connected to the top of the cover bottom, a plurality of slide grooves are arranged on the inner wall of the cover bottom, a plug pin is slidably connected in each of the slide grooves, the plug pin is movably plugged into the corresponding slot, an expansion mechanism is arranged in the cover bottom, and the plug pin is pushed by the expansion mechanism to move and insert into the slot to fix the position of the cover bottom.

[0008] As a preferred solution of the utility model, the expansion mechanism includes a ratchet disk, a positioning shaft and a handle, the positioning shaft is rotatably connected between the upper and lower inner walls of the cover bottom, the ratchet disk is fixedly connected to the circumferential surface of the positioning shaft, a plurality of arc grooves are provided on the top of the ratchet disk, the upper end of the positioning shaft extends to the upper side of the cover top, and the handle is fixedly connected to the upper end of the positioning shaft.

[0009] As a preferred solution of the utility model, a protrusion is fixedly connected to the top of each of the plug pins, and each of the protrusions is slidably connected to one of the arc-shaped grooves.

[0010] As a preferred solution of the utility model, an eccentric shaft is rotatably connected between the cover bottom and the cover top, a pawl is fixedly connected to the circumferential surface of the eccentric shaft, the pawl is meshed with the ratchet disk, and a spring is fixedly connected between the pawl and the inner wall of the cover bottom.

[0011] As a preferred solution of the utility model, the upper end of the eccentric shaft passes through the cover top and is fixedly connected with a paddle.

[0012] As a preferred solution of the utility model, an air valve is fixedly connected to the bottom of the cover bottom.

[0013] As a preferred solution of the utility model, an indicator mark and a handle are arranged on the top of the cover.

[0014] As a preferred solution of the utility model, the tops of the cover body and the cover top are both provided with positioning marks.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. When using this solution, insert the cover bottom into the cover body and then into the lower embedded ring. Then rotate the handle to drive the positioning shaft to rotate, and the positioning shaft drives the ratchet disk to rotate, thereby driving multiple pins to retract and retract synchronously. The pins are used to expand outward synchronously and then are inserted into corresponding slots respectively to fix the position of the cover bottom. Under the obstruction of the slots, the pins cannot move up and down, so that the cover bottom, the lower embedded ring and the cover body form a whole. Compared with the traditional fixed structure, the plug-in structure provided by this solution is more solid, and the cover body, the lower embedded ring and the cover bottom form an integral structure, which can withstand stronger pressure and impact force, the fixing method is simpler, the opening method is more convenient, and the direct plug-in structure reduces the wear on the sealing ring, reduces the occurrence of gaps, and extends the service life.

[0017] 2. In this scheme, the lower embedded ring, cover bottom and plug pin are all made of stainless steel. The material is strong and not easy to deform, and has a longer service life. When the plug pin is gradually inserted into the slot, the ratchet disk can rotate normally. When the plug pin moves away from the slot, the pawl can block the rotation of the ratchet disk under the elastic action of the spring, realizing the self-locking function. The locking method is reasonable and practical, more convenient to use, and ensures the stable use of the expansion mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model;

[0023] Figure 4 This is a structural diagram of the bottom cover of the utility model.

[0024] In the figure: 1. cover body; 2. lower embedded ring; 3. slot; 4. cover bottom; 5. cover top; 6. slide groove; 7. plug pin; 8. bump; 9. ratchet plate; 10. arc groove; 11. positioning shaft; 12. rotary handle; 13. eccentric shaft; 14. pawl; 15. spring; 16. paddle; 17. air valve; 18. indicator mark; 19. positioning mark; 20. handle; 21. sealing ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] See also Figure 1-Figure 4 , the technical solution provided by this embodiment is as follows:

[0028] A cover plate assembly for high-voltage testing equipment includes a cover body 1, a lower embedded ring 2 is embedded at the bottom of the cover body 1, a plurality of slots 3 are opened on the inner wall of the lower embedded ring 2, a cover bottom 4 is inserted from top to bottom in the lower embedded ring 2, a cover top 5 is fixedly connected to the top of the cover bottom 4, a plurality of slide grooves 6 are arranged on the inner wall of the cover bottom 4, a plug pin 7 is slidably connected in each slide groove 6, the plug pin 7 is movably plugged into the corresponding slot 3, an expansion mechanism is arranged in the cover bottom 4, and the plug pin 7 is pushed by the expansion mechanism to move and insert into the slot 3 to fix the position of the cover bottom 4.

[0029] In a specific embodiment of the utility model, mounting holes are provided around the cover body 1, and mounting bolts can fix the cover body 1. The lower embedded ring 2 is embedded in the cover body 1 by the bottom of the cover body 1, and the cover bottom 4 and the cover top 5 are fixed by bolts. The connection between the cover body 1, the lower embedded ring 2, the cover bottom 4 and the cover top 5 is provided with a sealing ring 21 to ensure the sealing. When in use, the cover bottom 4 is inserted into the cover body 1, and then into the lower embedded ring 2, and then the rotary handle 12 is rotated to drive the positioning shaft 11 to rotate, and the positioning shaft 11 drives the ratchet disk 9 to rotate, thereby driving multiple pins 7 to retract synchronously, and the pins 7 are used to expand outward synchronously, and then are respectively inserted into the corresponding slots 3, so as to fix the position of the cover bottom 4. Under the obstruction of the slot 3, the pins 7 have no The method is to move up and down, so that the cover bottom 4, the lower embedded ring 2 and the cover body 1 form a whole. Compared with the traditional fixed structure, the plug-in structure provided by the present scheme is more solid, and the cover body 1, the lower embedded ring 2 and the cover bottom 4 form an integral structure, which can withstand stronger pressure and impact. Preferably, the lower embedded ring 2, the cover bottom 4 and the plug pin 7 are all made of stainless steel. The material is solid and not easy to deform, and the service life is longer. In addition, the present scheme is provided with a pawl 14. During the process of the plug pin 7 being gradually inserted into the slot 3, the ratchet disk 9 can rotate normally. When the plug pin 7 moves away from the slot 3, under the elastic action of the spring 15, the pawl 14 can prevent the ratchet disk 9 from rotating, thereby realizing the self-locking function. The locking method is reasonable and practical, and more convenient to use.

[0030] Specifically, the expansion mechanism includes a ratchet disk 9, a positioning shaft 11 and a handle 12. The positioning shaft 11 is rotatably connected between the upper and lower inner walls of the cover bottom 4. The ratchet disk 9 is fixedly connected to the circumferential surface of the positioning shaft 11. A plurality of arc grooves 10 are provided on the top of the ratchet disk 9. The upper end of the positioning shaft 11 extends to the upper side of the cover top 5. The handle 12 is fixedly connected to the upper end of the positioning shaft 11. A protrusion 8 is fixedly connected to the top of each pin 7, and each protrusion 8 is slidably connected to one of the arc grooves 10.

[0031] In the specific embodiment of the utility model, the pins 7 are evenly distributed around the ratchet disc 9, and the arc groove 10 is used to guide the protrusion 8 to slide. Figure 4When the ratchet disk 9 rotates clockwise, the multiple protrusions 8 move outward synchronously, thereby driving the multiple pins 7 to move outward synchronously, and then insert into the slot 3. When the ratchet disk 9 rotates counterclockwise, the multiple protrusions 8 move inward synchronously, thereby driving the multiple pins 7 to move inward synchronously, and then move away from the slot 3. The structure is reasonable. After the pin 7 is inserted into the slot 3, the pin 7 cannot move up and down, so that the cover bottom 4 cannot move up and down, and the fixed structure is more solid.

[0032] Specifically, an eccentric shaft 13 is rotatably connected between the cover bottom 4 and the cover top 5, a pawl 14 is fixedly connected to the circumferential surface of the eccentric shaft 13, the pawl 14 is meshed with the ratchet disk 9, a spring 15 is fixedly connected between the pawl 14 and the inner wall of the cover bottom 4, and the upper end of the eccentric shaft 13 passes through the cover top 5 and is fixedly connected to a paddle 16.

[0033] In a specific embodiment of the utility model, the paddle 16 is located on the upper side of the cover top 5, and is used to drive the eccentric shaft 13 to rotate, thereby driving the pawl 14 to rotate. When the pawl 14 is engaged with the ratchet disk 9, the pawl 14 can prevent the ratchet disk 9 from rotating counterclockwise, thereby preventing the plug pin 7 from separating from the slot 3. Plugging the paddle 16 can separate the pawl 14 from the ratchet disk 9, and the ratchet disk 9 can be rotated clockwise, driving the plug pin 7 to move inward. Under the elastic action of the spring 15, the pawl 14 returns to its original position after the paddle 16 is released, and re-engages with the ratchet disk 9. The self-locking structure of the pawl 14 and the ratchet disk 9 is utilized to ensure the stable use of the expansion mechanism.

[0034] Specifically, the bottom of the cover bottom 4 is fixedly connected with an air valve 17 .

[0035] In a specific embodiment of the present invention, the gas valve 17 is used to control and maintain the gas or liquid pressure inside the device within a safe range. When the pressure inside the device exceeds the set safety value, the gas valve 17 will automatically open to release a portion of the gas or liquid, thereby reducing the pressure and preventing the device from being damaged or dangerous.

[0036] Specifically, an indicator mark 18 and a handle 20 are provided on the top of the cover 5 .

[0037] In a specific embodiment of the present invention, the indicator mark 18 is used to guide the direction of the paddle 16 to facilitate the user's use. The handle 20 is arranged on the top of the cover 5, and pressing and lifting the cover 5 is more labor-saving.

[0038] Specifically, positioning marks 19 are provided on the tops of the cover body 1 and the cover top 5 .

[0039] In a specific embodiment of the present invention, the positioning mark 19 is used to align the position of the plug pin 7 to ensure that the plug pin 7 is aligned with the slot 3 after the cover bottom 4 is inserted into the lower embedded ring 2 .

[0040] Working principle: When in use, insert the cover bottom 4 into the cover body 1, and then into the lower embedded ring 2, then rotate the knob 12 to drive the positioning shaft 11 to rotate, and the positioning shaft 11 drives the ratchet disk 9 to rotate, thereby driving multiple plug pins 7 to expand synchronously, and use the plug pins 7 to expand outward synchronously, and then insert them into the corresponding slots 3 respectively, so as to fix the position of the cover bottom 4. Under the obstruction of the slots 3, the plug pins 7 cannot move up and down, so that the cover bottom 4, the lower embedded ring 2 and the cover body 1 form a whole. Compared with the traditional fixed structure, the plug-in structure provided by this solution is more solid The cover body 1, the lower embedded ring 2 and the cover bottom 4 form an integral structure, which can withstand stronger pressure and impact force. Preferably, the lower embedded ring 2, the cover bottom 4 and the plug pin 7 are all made of stainless steel. The material is strong and not easy to deform, and has a longer service life. In addition, the present invention is provided with a pawl 14. During the process of the plug pin 7 being gradually inserted into the slot 3, the ratchet disk 9 can rotate normally. When the plug pin 7 moves away from the slot 3, under the elastic action of the spring 15, the pawl 14 can block the ratchet disk 9 from rotating, thereby realizing the self-locking function. The locking method is reasonable and practical, and more convenient to use.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cover plate assembly for a high voltage test equipment, characterized in that: The invention comprises a cover body (1), wherein a lower embedded ring (2) is embedded at the bottom of the cover body (1), a plurality of slots (3) are provided on the inner wall of the lower embedded ring (2), a cover bottom (4) is inserted from top to bottom into the lower embedded ring (2), a cover top (5) is fixedly connected to the top of the cover bottom (4), a plurality of slide grooves (6) are provided on the inner wall of the cover bottom (4), each of the slide grooves (6) is slidably connected with a plug pin (7), the plug pin (7) is movably plugged into a corresponding slot (3), an expansion mechanism is provided in the cover bottom (4), and the plug pin (7) is pushed by the expansion mechanism to move and be inserted into the slot (3) to fix the position of the cover bottom (4).

2. The high voltage test equipment cover plate assembly according to claim 1, characterized in that: The expansion mechanism comprises a ratchet disc (9), a positioning shaft (11) and a rotary handle (12); the positioning shaft (11) is rotatably connected between the upper and lower inner walls of the cover bottom (4); the ratchet disc (9) is fixedly connected to the circumferential surface of the positioning shaft (11); a plurality of arc grooves (10) are provided on the top of the ratchet disc (9); the upper end of the positioning shaft (11) extends to the upper side of the cover top (5); and the rotary handle (12) is fixedly connected to the upper end of the positioning shaft (11).

3. The high voltage test equipment cover plate assembly according to claim 2, characterized in that: A protrusion (8) is fixedly connected to the top of each plug pin (7), and each protrusion (8) is slidably connected to one of the arc-shaped grooves (10).

4. The high voltage test equipment cover plate assembly according to claim 3, characterized in that: An eccentric shaft (13) is rotatably connected between the cover bottom (4) and the cover top (5); a pawl (14) is fixedly connected to the circumferential surface of the eccentric shaft (13); the pawl (14) is meshed with the ratchet disc (9); and a spring (15) is fixedly connected between the pawl (14) and the inner wall of the cover bottom (4).

5. The high voltage test equipment cover plate assembly according to claim 4, characterized in that: The upper end of the eccentric shaft (13) passes through the cover top (5) and is fixedly connected to a paddle (16).

6. The high voltage test equipment cover plate assembly according to claim 5, characterized in that: The bottom of the cover bottom (4) is fixedly connected with an air valve (17).

7. The high voltage test equipment cover assembly according to claim 6, characterized in that: The top of the cover (5) is provided with an indicator mark (18) and a handle (20).

8. The high voltage test equipment cover plate assembly according to claim 7, characterized in that: Positioning marks (19) are provided on the tops of the cover body (1) and the cover top (5).

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