CN213479330U

CN213479330U - Coil cover for small electromagnetic valve

Info

Publication number: CN213479330U
Application number: CN202022265340.0U
Authority: CN
Inventors: 浦仁飞
Original assignee: Wuxi Shuangjie Molding Co ltd
Current assignee: Wuxi Shuangjie Molding Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-18
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses a coil casing for small-size solenoid valve, the rain cover comprises a cover body, the cavity has been seted up to the both sides of the cover body, the top inner wall of cavity rotates and is connected with the screw thread axle, the outside threaded connection of screw thread axle has the movable block, the bottom fixedly connected with of screw thread axle is from the driving wheel, two the meshing of the back of the body side of the driving wheel has the action wheel, two the pivot that the cover body was extended to the back of the body side fixedly connected with of action wheel, be provided with the apron about the cover body between the inner wall, the spacing groove has been seted up to the inside both sides of apron, the inside of spacing groove is provided with the push rod, the outside of push rod. This coil casing convenient to detach for small-size solenoid valve can avoid changing the material waste that whole coil pack caused, has reduced user's economic burden, has good heat dissipation cooling function moreover to the normal operating of solenoid valve has been ensured.

Description

Coil cover for small electromagnetic valve

Technical Field

The utility model relates to a solenoid valve technical field specifically is a coil casing for small-size solenoid valve.

Background

Electromagnetic valves (Electromagnetic valves) are electromagnetically controlled industrial devices, which are the basic elements of automation for controlling fluids, and are used in industrial control systems to regulate the direction, flow rate, velocity and other parameters of media.

The coil cover of the existing electromagnetic valve is formed in one step by plastic injection molding, so the coil cover cannot be disassembled, when parts (an electromagnetic coil, an armature diode and the like) in the coil cover are damaged, the whole coil assembly must be replaced, waste is caused, the economic burden of a user is increased, and when the coil is electrified, the temperature of the coil can be gradually increased, the short circuit of the coil and the diode is easily caused, and the normal operation of the electromagnetic valve is influenced.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a coil casing for small-size solenoid valve, this coil casing convenient to detach for small-size solenoid valve can avoid changing the material that whole coil pack caused extravagantly, has reduced user's economic burden, has good heat dissipation cooling function moreover to the normal operating of solenoid valve has been ensured.

In order to achieve the above object, the utility model provides a following technical scheme: a coil cover for a small-sized electromagnetic valve comprises a cover body, wherein cavities are formed in two sides of the cover body, a threaded shaft is rotatably connected to the inner wall of the top of each cavity, a movable block is in threaded connection with the outer side of the threaded shaft, driven wheels are fixedly connected to the bottom of the threaded shaft, driving wheels are meshed with the opposite sides of the two driven wheels, a rotating shaft extending out of the cover body is fixedly connected to the opposite sides of the two driving wheels, a cover plate is arranged between the left inner wall and the right inner wall of the cover body, limiting grooves are formed in two sides of the inner portion of the cover plate, push rods are arranged in the limiting grooves, springs are arranged on the outer sides of the push rods, limiting blocks are fixedly connected to the opposite sides of the two push rods, jacks are formed in the cover plate, handles are inserted in the jacks, slots are formed, the inner wall fixedly connected with closed pipe in both sides top of inner shell, the inside of closed pipe is provided with the piston, the bottom fixedly connected with movable rod of piston, the bottom fixedly connected with fly leaf of movable rod.

Preferably, the heat dissipation holes are formed in the cover body and the inner shell.

Preferably, the limiting block is inserted into the cover body at the beginning.

Preferably, the slot is matched with the size of the push rod.

Preferably, the inside of the closed tube is filled with nitrogen gas.

The utility model has the advantages that:

1. when parts inside the cover body are damaged, rotating shafts on two sides of the cover body are rotated, the rotating shafts drive a driving wheel to rotate, the driving wheel drives a threaded shaft to rotate through meshing with a driven wheel, the threaded shaft drives a movable block in threaded connection with the threaded shaft to move downwards, the movable block presses limiting blocks on two sides when moving downwards, the limiting blocks on two sides move oppositely and are separated from the inside of the cover body, the two limiting blocks press a spring and drive a push rod to move oppositely when moving oppositely, the push rod moves oppositely and is inserted into the slot, then a handle is lifted, the handle drives a cover plate to move upwards to separate from the cover body, and then the damaged parts inside the cover body are repaired, so that waste caused by replacement of the whole coil assembly is avoided, and economic;

2. when the coil is electrified for a long time to cause the internal temperature of the inner shell to rise, the inner shell transmits the temperature to the inside of the closed tube, so that the temperature of the closed tube rises, nitrogen filled in the closed tube increases the internal pressure of the closed tube under the effect of expansion with heat and contraction with cold and drives the movable plate to move downwards through the movable rod, the movable plate moves downwards to the lower side of the heat dissipation hole, the inner shell completes heat exchange with the outside through the heat dissipation hole, the effect of cooling and heat dissipation of the coil is achieved, the short circuit phenomenon caused by the temperature rise of the coil is avoided, and the normal operation of.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall plane structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the cover plate of the present invention;

FIG. 3 is a schematic diagram of the internal structure of the cavity of the present invention;

fig. 4 is a schematic diagram of the internal structure of the inner shell of the present invention.

Reference numbers in the figures: 1. a cover body; 2. a cavity; 3. a threaded shaft; 4. a movable block; 5. a driven wheel; 6. a driving wheel; 7. a rotating shaft; 8. a cover plate; 9. a limiting groove; 10. a push rod; 11. a spring; 12. a limiting block; 13. a jack; 14. a handle; 15. a slot; 16. an inner shell; 17. a coil; 18. closing the tube; 19. a piston; 20. a movable rod; 21. a movable plate; 22. and (4) heat dissipation holes.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying fig. 1-4.

Given by fig. 1-4, the utility model provides the following technical scheme: a coil cover for a small-sized electromagnetic valve comprises a cover body 1, cavities 2 are arranged on two sides of the cover body 1, a threaded shaft 3 is rotatably connected on the inner wall of the top of each cavity 2, a movable block 4 is in threaded connection with the outer side of each threaded shaft 3, driven wheels 5 are fixedly connected to the bottom of each threaded shaft 3, driving wheels 6 are meshed with the opposite sides of the two driven wheels 5, rotating shafts 7 extending out of the cover body 1 are fixedly connected with the opposite sides of the two driving wheels 6, a cover plate 8 is arranged between the left inner wall and the right inner wall of the cover body 1, limiting grooves 9 are arranged on two sides of the inner portion of the cover plate 8, push rods 10 are arranged in the limiting grooves 9, springs 11 are arranged on the outer sides of the push rods 10, limiting blocks 12 are fixedly connected with the opposite sides of the two push rods 10, jacks 13 are arranged in the cover plate 8, handles 14 are inserted, the inner walls of the tops of two sides of the inner shell 16 are fixedly connected with a closed tube 18, a piston 19 is arranged in the closed tube 18, the bottom of the piston 19 is fixedly connected with a movable rod 20, the bottom of the movable rod 20 is fixedly connected with a movable plate 21, when parts in the cover body 1 are damaged, two side rotating shafts 7 of the cover body 1 are rotated, the rotating shafts 7 drive a driving wheel 6 to rotate, the driving wheel 6 drives a threaded shaft 3 to rotate by being meshed with a driven wheel 5, the threaded shaft 3 drives a movable block 4 in threaded connection with the threaded shaft to move downwards, the movable block 4 presses limiting blocks 12 on two sides when moving downwards, the limiting blocks 12 on two sides move towards each other and are separated from the cover body 1, when the two limiting blocks 12 move towards each other, a spring 11 is pressed and a push rod 10 is driven to move towards each other, the push rod 10 moves towards each other and is inserted into the slot 15, then a handle 14 is, thereby the waste caused by replacing the whole coil assembly is avoided, the economic burden of a user is reduced, when the coil 17 is electrified for a long time to cause the internal temperature of the inner shell 16 to rise, the temperature of the inner shell 16 is transferred to the inside of the closed tube 18, the temperature of the closed tube 18 is raised, nitrogen filled in the closed tube 18 increases the internal pressure of the closed tube 18 under the effect of expansion with heat and contraction with cold and drives the movable plate 21 to move downwards through the movable rod 20, the movable plate 21 moves downwards to the lower side of the heat dissipation hole 22, the heat exchange between the inner shell 16 and the outside is completed through the heat dissipation hole 22, the effect of cooling and heat dissipation of the coil 17 is achieved, the short circuit phenomenon caused by the temperature rise of the coil 17 is avoided.

The heat dissipation holes 22 are formed in the cover body 1 and the inner shell 16, and the inner shell 16 completes the heat exchange process with the outside through the heat dissipation holes 22.

The limiting block 12 is inserted into the cover body 1 at the beginning, and the limiting block 12 limits the cover plate 8.

The slot 15 is adapted to the size of the push rod 10, and the push rod 10 can be inserted into the slot 15 to enable the handle 14 to lift the cover plate 8.

The inside of the closed tube 18 is filled with nitrogen gas, and the up-and-down movement of the movable plate 21 is controlled by the expansion and contraction properties of the nitrogen gas.

The utility model discloses during the use, when the internal part of cover body 1 damages, rotate cover body 1 both sides pivot 7, pivot 7 drives action wheel 6 and rotates, action wheel 6 drives threaded shaft 3 through meshing with from driving wheel 5 and rotates, threaded shaft 3 drives movable block 4 rather than threaded connection and moves down, movable block 4 pushes the stopper 12 of both sides when moving down, stopper 12 of both sides moves and breaks away from the internal part of cover body 1 in opposite directions, two stoppers 12 push spring 11 and drive push rod 10 and move in opposite directions when moving in opposite directions, push rod 10 moves in opposite directions and inserts in the slot 15, lift handle 14 again, handle 14 drives apron 8 and moves up and leaves cover body 1, then repair the internal part of cover body 1 that damages, thereby avoided the waste that changes whole coil pack and cause, user's economic burden is reduced;

when the coil 17 is electrified for a long time to cause the temperature inside the inner shell 16 to rise, the inner shell 16 transmits the temperature to the inside of the closed tube 18, so that the temperature of the closed tube 18 rises, nitrogen filled in the closed tube 18 increases the internal pressure of the closed tube 18 under the effect of expansion with heat and contraction with cold and drives the movable plate 21 to move downwards through the movable rod 20, the movable plate 21 moves downwards to the lower side of the heat dissipation hole 22, the inner shell 16 completes heat exchange with the outside through the heat dissipation hole 22, the effect of cooling and heat dissipation of the coil 17 is achieved, the short circuit phenomenon caused by the temperature rise of the coil 17 is avoided, and the normal operation of the electromagnetic.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A coil cover for a small-sized solenoid valve, comprising a cover body (1), characterized in that: the mask comprises a mask body (1), wherein cavities (2) are formed in two sides of the mask body (1), a threaded shaft (3) is rotatably connected to the inner wall of the top of each cavity (2), a movable block (4) is in threaded connection with the outer side of each threaded shaft (3), driven wheels (5) are fixedly connected to the bottom of each threaded shaft (3), driving wheels (6) are meshed with the opposite sides of the two driven wheels (5), rotating shafts (7) extending out of the mask body (1) are fixedly connected to the opposite sides of the two driving wheels (6), a cover plate (8) is arranged between the left inner wall and the right inner wall of the mask body (1), limiting grooves (9) are formed in two sides of the cover plate (8), push rods (10) are arranged in the limiting grooves (9), springs (11) are arranged on the outer sides of the push rods (10), limiting blocks (12) are fixedly connected to the opposite sides of the two, the improved mask is characterized in that a handle (14) is inserted into the jack (13), a slot (15) is formed in the handle (14), an inner shell (16) in the mask body (1), a coil (17) is arranged in the inner shell (16), closed tubes (18) are fixedly connected to the inner walls of the tops of the two sides of the inner shell (16), pistons (19) are arranged in the closed tubes (18), movable rods (20) are fixedly connected to the bottoms of the pistons (19), and movable plates (21) are fixedly connected to the bottoms of the movable rods (20).

2. A coil cover for a small-sized electromagnetic valve according to claim 1, wherein: the cover body (1) and the inner shell (16) are both internally provided with heat dissipation holes (22).

3. A coil cover for a small-sized electromagnetic valve according to claim 1, wherein: the limiting block (12) is inserted into the cover body (1) at the beginning.

4. A coil cover for a small-sized electromagnetic valve according to claim 1, wherein: the slot (15) is matched with the size of the push rod (10).

5. A coil cover for a small-sized electromagnetic valve according to claim 1, wherein: the inside of the closed tube (18) is filled with nitrogen gas.