CN215172621U

CN215172621U - Connection structure of electric actuator and valve

Info

Publication number: CN215172621U
Application number: CN202023147280.9U
Authority: CN
Inventors: 刘临霞; 伍万银; 黎守娟; 李玉金
Original assignee: Tianjin Zhongyi Automation Instrument Co ltd
Current assignee: Tianjin Zhongyi Automation Instrument Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-12-14
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a draw bail of electric actuator and valve, including two-way screw rod, transmission shaft and valve rod, the bottom of transmission shaft all is fixed with the rectangle inserted block with the top of valve rod, the top of two-way screw rod is provided with rectangular block one, and the bottom of two-way screw rod is provided with rectangular block two, the lower surface of rectangular block one and the upper surface of rectangular block two all set up threaded hole, and the upper surface of rectangular block one and the lower surface of rectangular block two all set up the rectangle slot. This draw bail of electric actuator and valve, through setting up two-way screw rod, recycle the screw hole with rectangular block one with two threaded connection of rectangular block on two sections screw threads of two-way screw rod, rotate two-way screw rod and can promote rectangular block one and keep away from gradually rectangular block two, the effect of rectangular slot and rectangle inserted block is deuterogamied, it is fixed with being connected of valve rod just to have realized the transmission shaft, easy operation is convenient, and need not to pull down whole actuating mechanism and just can take off the draw bail, the practicality is strong.

Description

Connection structure of electric actuator and valve

Technical Field

The utility model relates to an motorised valve technical field especially relates to a draw bail of electric actuator and valve.

Background

The electric valve is usually connected with a valve by an electric actuating mechanism, and becomes the electric valve after installation and debugging, and the electric valve uses electric energy as power to switch on the electric actuating mechanism to drive the valve, so as to realize the opening and closing and adjusting actions of the valve, thereby achieving the purpose of opening and closing or adjusting the pipeline medium.

Adopt bolted connection's mode to realize the fixed connection of electric actuator's output shaft and valve rod on the existing market, the installation complex operation of this kind of mode, and need pull down whole actuating mechanism when later stage is dismantled, be unfavorable for actual use.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an electric actuator and linkage of valve has solved the fixed connection that adopts bolted connection's mode to realize electric actuator's output shaft and valve rod on the existing market, and the installation complex operation of this kind of mode, and need pull down the problem of whole actuating mechanism when dismantling at the later stage.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a draw bail of electric actuator and valve, includes two-way screw rod, transmission shaft and valve rod, the bottom of transmission shaft and the top of valve rod all are fixed with the rectangle inserted block, the top of two-way screw rod is provided with rectangular block one, and the bottom of two-way screw rod is provided with rectangular block two, threaded hole has all been seted up to the lower surface of rectangular block one and the upper surface of rectangular block two, and rectangular slot has all been seted up to the upper surface of rectangular block one and the lower surface of rectangular block two, the screw hole is linked together with rectangular slot, threaded connection is in the inside of two screw holes respectively at the both ends of two-way screw rod.

By adopting the scheme, the first rectangular block and the second rectangular block are connected to the two sections of threads of the bidirectional screw through the bidirectional screw by the aid of the recycled threaded holes, the first rectangular block and the second rectangular block can be pushed to be gradually away from each other by rotating the bidirectional screw, and the transmission shaft and the valve rod are fixedly connected under the action of the rectangular slot and the rectangular insert block.

Preferably, the middle of the bidirectional screw is rotatably provided with a first U-shaped plate, the middle of the bidirectional screw is fixedly provided with a worm wheel, the worm wheel is located inside the first U-shaped plate, the inside of the first U-shaped plate is rotatably provided with a worm, and the worm is meshed with the worm wheel.

By adopting the scheme, the first U-shaped plate, the worm and the worm wheel are arranged, the worm can be rotated to drive the bidirectional screw to rotate, and the labor-saving effect is good.

Preferably, a U-shaped plate II is fixed on the U-shaped plate I, a rectangular space is formed between the U-shaped plate I and the U-shaped plate II, the worm and the worm wheel are both located in the rectangular space, and one end of the worm penetrates through the inner wall surface of the U-shaped plate II and extends to the outside of the rectangular space.

By adopting the scheme, the worm and the worm wheel can be protected by arranging the U-shaped plate II and matching the rectangular space formed by the U-shaped plate I.

Preferably, the side of the U-shaped plate II is fixed with a fixed block, and is fixed with an optical axis on the fixed block, the side of the rectangular block I and the side of the rectangular block II are both fixed with sliding sleeves, and the sliding sleeves are slidably sleeved on the optical axis.

By adopting the scheme, the first rectangular block and the second rectangular block can only perform lifting motion and can not perform rotary motion by setting the optical axis and the sliding sleeve, and the situation that the first rectangular block and the second rectangular block follow the rotation of the bidirectional screw rod is avoided.

Preferably, the both ends of optical axis all are fixed with the stopper, two all paste on the relative two sides of stopper and have the rubber circle.

By adopting the scheme, the separation of the optical axis and the sliding sleeve can be prevented by arranging the limiting block.

Preferably, a cylinder is fixed on the outer surface of the U-shaped plate II, a fixing ring is sleeved on the outer side of the worm, a plurality of ratchet grooves are formed in the outer surface of the fixing ring, the cylinder is sleeved on the fixing ring, ratchets matched with the ratchet grooves are hinged inside the cylinder through a pin shaft, a spring piece is fixed on the inner surface of the cylinder, and one end of the spring piece is in contact with the ratchets.

By adopting the scheme, the ratchet and the ratchet groove are arranged, and the spring piece is utilized to compress the ratchet in one ratchet groove, so that the reverse rotation of the bidirectional screw rod is avoided, and the connection stability of the transmission shaft and the valve rod is improved.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the connecting structure of the electric actuating mechanism and the valve, the two-way screw rod is arranged, the first rectangular block and the second rectangular block are connected to the two sections of threads of the two-way screw rod in a threaded mode through the threaded holes, the first rectangular block and the second rectangular block can be pushed to be gradually far away by rotating the two-way screw rod, and the connecting and fixing of the transmission shaft and the valve rod are achieved by matching the action of the rectangular slot and the rectangular inserting block, so that the operation is simple and convenient, the connecting mechanism can be taken down without dismounting the whole actuating mechanism, and the practicability is high;

according to the connecting structure of the electric actuating mechanism and the valve, the ratchet and the ratchet groove are arranged, and the spring piece is utilized to tightly press the ratchet in one ratchet groove, so that the condition of reverse rotation of the bidirectional screw rod is avoided, and the connection stability of the transmission shaft and the valve rod is improved.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a side sectional view of the whole body of the present invention;

fig. 3 is a cross-sectional view of the cylinder of the present invention.

In the figure: 1. a bidirectional screw; 2. a drive shaft; 3. a valve stem; 4. a first rectangular block; 5. a second rectangular block; 6. a rectangular slot; 7. a threaded hole; 8. a rectangular insert block; 9. a U-shaped plate I; 10. a worm gear; 11. a worm; 12. a U-shaped plate II; 13. a fixed block; 14. an optical axis; 15. a sliding sleeve; 16. a limiting block; 17. a cylinder; 18. a fixing ring; 19. a ratchet groove; 20. a ratchet; 21. a spring plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a connecting structure of an electric actuator and a valve comprises a bidirectional screw 1, a transmission shaft 2 and a valve rod 3, wherein a rectangular insert block 8 is fixed at the bottom end of the transmission shaft 2 and the top end of the valve rod 3, a rectangular block I4 is arranged at the top of the bidirectional screw 1, a rectangular block II 5 is arranged at the bottom of the bidirectional screw 1, threaded holes 7 are formed in the lower surface of the rectangular block I4 and the upper surface of the rectangular block II 5, rectangular slots 6 are formed in the upper surface of the rectangular block I4 and the lower surface of the rectangular block II 5, the threaded holes 7 are communicated with the rectangular slots 6, and two ends of the bidirectional screw 1 are respectively in threaded connection with the two threaded holes 7; through setting up two-way screw rod 1, recycle screw hole 7 with rectangular block one 4 and two 5 threaded connection of rectangular block to two sections screw threads of two-way screw rod 1, rotate two-way screw rod 1 and can promote rectangular block one 4 and two 5 and keep away from gradually, the effect of rectangular slot 6 and rectangular inserted block 8 is deuterogamied, it is fixed with being connected of valve rod 3 just to have realized transmission shaft 2, easy operation is convenient, and need not to pull down whole actuating mechanism and just can take off coupling mechanism, the practicality is strong.

The middle part of the bidirectional screw 1 is rotatably provided with a U-shaped plate I9, the middle part of the bidirectional screw 1 is fixedly provided with a worm wheel 10, the worm wheel 10 is positioned inside the U-shaped plate I9, the inside of the U-shaped plate I9 is rotatably provided with a worm 11, and the worm 11 is meshed with the worm wheel 10; through setting up U-shaped board 9, worm 11 and worm wheel 10, can drive two-way screw rod 1 rotatory through rotating worm 11, laborsaving effectual.

A U-shaped plate II 12 is fixed on the U-shaped plate I9, a rectangular space is formed between the U-shaped plate I9 and the U-shaped plate II 12, the worm 11 and the worm wheel 10 are both positioned in the rectangular space, and one end of the worm 11 penetrates through the inner wall surface of the U-shaped plate II 12 and extends to the outside of the rectangular space; the worm 11 and the worm wheel 10 can be protected by arranging the U-shaped plate II 12 which is matched with the rectangular space formed by the U-shaped plate I9.

A fixed block 13 is fixed on the side surface of the U-shaped plate II 12, an optical axis 14 is fixed on the fixed block 13, sliding sleeves 15 are fixed on the side surfaces of the rectangular block I4 and the rectangular block II 5, and the sliding sleeves 15 are sleeved on the optical axis 14 in a sliding manner; through setting up optical axis 14 and sliding sleeve 15 for rectangular block one 4 and rectangular block two 5 can only carry out elevating movement and can't carry out rotary motion, have avoided rectangular block one 4 and rectangular block two 5 to follow the rotatory condition of two-way screw 1 and have taken place.

Limiting blocks 16 are fixed at two ends of the optical axis 14, and rubber rings are adhered to two opposite side surfaces of the two limiting blocks 16; by providing the stopper 16, the optical axis 14 can be prevented from being separated from the slide sleeve 15.

A cylinder 17 is fixed on the outer surface of the U-shaped plate II 12, a fixing ring 18 is sleeved on the outer side of the worm 11, a plurality of ratchet grooves 19 are formed in the outer surface of the fixing ring 18, the cylinder 17 is sleeved on the fixing ring 18, ratchets 20 matched with the ratchet grooves 19 are hinged inside the cylinder 17 through a pin shaft, a spring piece 21 is fixed on the inner surface of the cylinder 17, and one end of the spring piece 21 is in contact with the ratchets 20; by arranging the ratchet 20 and the ratchet groove 19 and pressing the ratchet 20 in one ratchet groove 19 by the spring piece 21, the reverse rotation of the bidirectional screw 1 is avoided, and the connection stability of the transmission shaft 2 and the valve rod 3 is improved.

In conclusion, when the connecting structure of the electric actuator and the valve is used, the bidirectional screw 1 is moved between the transmission shaft 2 and the valve rod 3, then the position of the bidirectional screw 1 is adjusted to make the two rectangular insertion blocks 8 align with the two rectangular slots 6, and then the worm 11 is rotated to drive the worm wheel 10 and the bidirectional screw 1 to rotate, at this time, due to the arrangement of the optical axis 14 and the sliding sleeve 15, the first rectangular block 4 and the second rectangular block 5 can only perform lifting movement but can not perform rotating movement, therefore, the first rectangular block 4 and the second rectangular block 5 are gradually far away from each other, and at the same time, the two rectangular insertion blocks 8 are gradually inserted into the two rectangular insertion grooves 6 until the worm 11 cannot be rotated continuously, in the process, under the action of the spring piece 21, the ratchet 20 will be continuously withdrawn from the inner part of the ratchet groove 19 and clamped into the inner part of the ratchet groove 19, thereby avoiding the reverse rotation of the bidirectional screw 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a draw bail of electric actuator and valve, its characterized in that, includes two-way screw rod (1), transmission shaft (2) and valve rod (3), the bottom of transmission shaft (2) and the top of valve rod (3) all are fixed with rectangle inserted block (8), the top of two-way screw rod (1) is provided with rectangle piece (4), and the bottom of two-way screw rod (1) is provided with rectangle piece two (5), threaded hole (7) have all been seted up to the lower surface of rectangle piece one (4) and the upper surface of rectangle piece two (5), and rectangle slot (6) have all been seted up to the upper surface of rectangle piece one (4) and the lower surface of rectangle piece two (5), threaded hole (7) are linked together with rectangle slot (6), threaded connection is in the inside of two screw holes (7) respectively at the both ends of two-way screw rod (1).

2. The connecting structure of the electric actuator and the valve as claimed in claim 1, wherein the middle of the bidirectional screw (1) is rotatably provided with a first U-shaped plate (9), the middle of the bidirectional screw (1) is fixed with a worm wheel (10), the worm wheel (10) is positioned inside the first U-shaped plate (9), the inside of the first U-shaped plate (9) is rotatably provided with a worm (11), and the worm (11) is meshed with the worm wheel (10).

3. The connecting structure of the electric actuator and the valve as claimed in claim 2, wherein a U-shaped plate (12) is fixed on the U-shaped plate (9), a rectangular space is formed between the U-shaped plate (9) and the U-shaped plate (12), the worm (11) and the worm wheel (10) are both located in the rectangular space, and one end of the worm (11) penetrates through the inner wall surface of the U-shaped plate (12) and extends to the outside of the rectangular space.

4. The connection structure of the electric actuator and the valve as claimed in claim 3, wherein a fixed block (13) is fixed to a side surface of the U-shaped plate II (12), an optical axis (14) is fixed to the fixed block (13), sliding sleeves (15) are fixed to side surfaces of the rectangular block I (4) and the rectangular block II (5), and the sliding sleeves (15) are slidably sleeved on the optical axis (14).

5. The connecting structure of the electric actuator and the valve as claimed in claim 4, wherein two ends of the optical axis (14) are fixed with limit blocks (16), and two opposite side surfaces of the two limit blocks (16) are adhered with rubber rings.

6. The connection structure of the electric actuator and the valve as claimed in claim 3, wherein a cylinder (17) is fixed on the outer surface of the U-shaped plate (12), a fixing ring (18) is sleeved on the outer side of the worm (11), a plurality of ratchet grooves (19) are formed in the outer surface of the fixing ring (18), the cylinder (17) is sleeved on the fixing ring (18), ratchets (20) matched with the ratchet grooves (19) are hinged inside the cylinder (17) through a pin shaft, a spring leaf (21) is fixed on the inner surface of the cylinder (17), and one end of the spring leaf (21) is in contact with the ratchets (20).