CN210178961U

CN210178961U - Flow regulating valve

Info

Publication number: CN210178961U
Application number: CN201920990566.1U
Authority: CN
Inventors: Jinghao Liao; 廖景灏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-03-24
Anticipated expiration: 2029-06-27

Abstract

The utility model provides a flow regulating valve belongs to valve technical field. It has solved the technical problem that current valve can not satisfy quick switching and accent simultaneously and flows the demand. The flow regulating valve comprises a valve body, wherein a valve cavity, a water inlet hole and a water outlet hole are formed in the valve body, a valve core is rotatably arranged in the valve cavity and is positioned between the water inlet hole and the water outlet hole, the water inlet hole and the water outlet hole can be communicated and cut off through the movement of the valve core, and the upper end of the valve core is connected with a driving assembly capable of driving the valve core to rotate; the flow regulating valve further comprises a flow regulating rod capable of moving along the axis of the valve core, the flow regulating rod sequentially penetrates through the driving assembly and the valve core, and the lower end of the flow regulating valve can extend to a position between the water inlet hole and the water outlet hole through movement. When the valve needs to be opened and closed quickly, the valve can be directly driven by the driving assembly to rotate, and the operation is convenient and quick. When the flow needs to be adjusted, the flow adjusting rod can be moved to adjust the water flow cross section area which can pass between the flow adjusting rod and the flow adjusting rod, so that the flow is controlled.

Description

Flow regulating valve

Technical Field

The utility model belongs to the technical field of the valve, a flow regulating valve is related to.

Background

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate by flowing or stopping a medium in a pipe or an apparatus. The valve is a control part in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, cut-off, throttling, check, flow splitting, overflow pressure relief and the like.

Chinese patent CN 207848428U discloses a stop valve with adjustable flow, it includes the valve body, set up in the valve gap at valve body top, and set up in the valve casing at valve gap top, it is equipped with the disk seat to lead to liquid mouth department top, the upper end of disk seat links to each other with the valve rod, the lower extreme of disk seat is equipped with hemispherical valve clack, the outside cover of disk seat is equipped with the sleeve of vertical setting, telescopic upper and lower end supports respectively at the valve gap, lead to on the valve body of liquid mouth department, the through-hole has evenly been seted up on the telescopic lateral wall, the upper end of valve rod upwards passes well cavity and extends to in the valve casing, the upper portion of well cavity can be placed is equipped with the rotation solenoid, the valve rod is inserted and is located in the rotation solenoid and with rotation solenoid threaded connection, the valve casing internal rotation is equipped with the hand wheel axle. When the manual valve is used, the hand wheel shaft drives the rotating solenoid to rotate through the transmission assembly, and when the rotating solenoid rotates forwards or backwards, the valve rod can move upwards or downwards to adjust the position of the valve seat, so that the opening degree of the valve is adjusted.

However, in actual use, it is necessary to adjust the valve flow rate and to rapidly control the opening and closing of the valve in some cases, and in this case, the shut-off function of the valve is highly required and is generally used as a shut-off valve. The valve in the above patent can only realize the flow adjustment of the valve, but cannot meet the requirement of rapidly opening and closing the valve, so the service environment is still limited.

Disclosure of Invention

The utility model discloses an above-mentioned problem to current technique existence provides a flow regulating valve, the utility model aims to solve the technical problem that: the flow regulating valve can be quickly opened and closed while the flow of the flow regulating valve is adjustable.

The purpose of the utility model can be realized by the following technical proposal:

the flow regulating valve is characterized by comprising a valve body, wherein a valve cavity, a water inlet hole and a water outlet hole are formed in the valve body, a valve element is rotatably arranged in the valve cavity and is positioned between the water inlet hole and the water outlet hole, the water inlet hole and the water outlet hole can be communicated and cut off through the movement of the valve element, and the upper end of the valve element is connected with a driving assembly capable of driving the valve element to rotate; the flow regulating valve further comprises a flow regulating rod capable of moving along the axis of the valve core, the flow regulating rod sequentially penetrates through the driving assembly and the valve core, and the lower end of the flow regulating valve can extend to a position between the water inlet hole and the water outlet hole through movement.

The working principle is as follows: when the valve needs to be opened and closed quickly, the valve core can be directly driven to rotate through the driving assembly, the movement of the valve core can control the connection and the cut-off between the water inlet hole and the water outlet hole, the closing stroke is short, and the operation is convenient and quick. When the flow needs to be slowly adjusted, the valve core can be controlled to move firstly, so that the flow adjusting valve is in a completely opened state, then the flow adjusting rod is moved, the lower end of the flow adjusting rod is moved to a position between the water inlet hole and the water outlet hole, the water flow cross section area which can pass between the water inlet hole and the water outlet hole is adjusted, and the flow is controlled.

In foretell flow regulating valve, the valve body internal thread is provided with the valve cap, the lateral wall of case with the hole threaded connection of valve cap, drive assembly includes the hand wheel that is connected with the upper end of case. The hand wheel rotates and can drive the valve core to rotate, and the valve core can move along the vertical direction while rotating, so that the quick connection or cut-off between the water inlet hole and the water outlet hole is realized.

In foretell flow regulating valve, valve cap internal thread connection has the locking cap, this locking cap is passed to the case, form the seal groove between the inner wall of valve cap, the lower terminal surface of locking cap and the lateral wall of case, be provided with sealed the pad in the seal groove.

In the flow regulating valve, a first through hole is formed in the middle of the hand wheel, a second through hole communicated with the first through hole is formed in the middle of the valve core, and an internal thread is formed in the side wall of the second through hole; the flow regulating rod is positioned in the first through hole and the second through hole and is in threaded connection with the second through hole. When the flow of the valve needs to be adjusted, the flow adjusting rod can be rotated, and because the flow adjusting rod is in threaded connection with the through hole, the flow adjusting rod can move along the linear direction while rotating, the lower end of the flow adjusting rod penetrates through the valve core and moves between the water inlet hole and the water outlet hole, the size of the cross section area of a flow channel between the water inlet hole and the water outlet hole is adjusted, and therefore the flow is adjusted.

In the flow regulating valve, the second through hole is a step hole and comprises an upper hole channel and a lower hole channel which are communicated, the sectional area of the upper hole channel is smaller than that of the lower hole channel, a step surface is formed between the upper hole channel and the lower hole channel, and the lower end of the flow regulating rod is provided with a boss which can be attached to the step surface. The second through hole is designed into a step hole, so that the upward moving stroke of the flow adjusting rod can be limited, and the flow adjusting rod is prevented from excessively rotating to slide from the valve core.

In the flow regulating valve, a mounting groove is formed in the hand wheel, a limiting slide block which can only rotate along the axis of the hand wheel is arranged in the mounting groove, a third through hole which is coaxial with the first through hole and the second through hole is formed in the limiting slide block, the upper end of the flow regulating rod is inserted into the third through hole and is connected with the limiting slide block, and a wrench groove for inserting a flow regulating wrench is further formed in the upper end of the flow regulating rod. When the flow is regulated, the flow regulating wrench is inserted into the wrench groove, and the flow regulating wrench is rotated to drive the flow regulating rod to rotate and move along the axis direction at the same time, so that the flow regulation is realized.

In the flow regulating valve, the upper end of the flow regulating rod is connected with the limiting sliding block through a bevel gear.

In foretell flow regulating valve, still rotate in the mounting groove and be provided with the scale slider, the lateral wall of scale slider with spacing slider meshes mutually, the upper surface of scale slider is provided with scale one, the upper surface of hand wheel has the observation area one that is used for observing scale one.

In the flow regulating valve, the upper surface of the limiting slide block is provided with a second scale, and the upper surface of the hand wheel is provided with a second observation area for observing the second scale; the side wall of the limiting sliding block is provided with a gear tooth, the side wall of the scale sliding block is provided with a plurality of tooth grooves capable of being meshed with the gear tooth, and each scale mark on the first scale corresponds to each tooth groove. The limiting sliding block rotates for a circle, the gear teeth can drive the scale sliding block to rotate for a certain angle, the gear teeth are meshed with the other gear groove, and at the moment, a reading of the scale on the scale sliding block can be read out and combined with the reading of the scale on the limiting sliding block to obtain the flow of the valve.

In the flow regulating valve, a cover plate for sealing the mounting groove is arranged on the upper surface of the hand wheel, and the first observation area and the second observation area comprise a first observation window and a second observation window which are arranged on the cover plate.

Compared with the prior art, the utility model has the advantages of it is following:

when the valve needs to be opened and closed quickly, the valve core can be directly driven to rotate through the driving assembly, connection and cut-off between the water inlet hole and the water outlet hole are controlled, the closing stroke is short, and the operation is convenient and quick. When the flow needs to be adjusted, the flow adjusting rod can be moved, the lower end of the flow adjusting rod is moved to a position between the water inlet hole and the water outlet hole, and the water flow cross section area which can pass between the water inlet hole and the water outlet hole is adjusted, so that the flow is controlled.

Drawings

Fig. 1 is a sectional view of the present flow regulating valve in the embodiment.

Fig. 2 is a schematic view of the internal structure of the present flow regulating valve in the embodiment.

Fig. 3 is an assembly view of the present handwheel of an embodiment.

FIG. 4 is a schematic view of a connection structure of the limiting slider and the limiting slider in the embodiment.

In the figure, 1, a valve body; 2, a valve cavity, 3 and a water inlet hole; 4. a water outlet hole; 5. a valve core; 6. a drive assembly; 7. a flow regulating rod; 8. a bonnet; 9. a hand wheel; 10. a locking cap; 11. a sealing groove; 12. a gasket; 13. a first through hole; 14. a second through hole; 15. a step surface; 16. a boss; 17. mounting grooves; 18. a limiting slide block; 19. a third through hole; 20. a flow regulating wrench; 21. a bevel gear; 22. a limiting slide block; 23. gear teeth; 24. a tooth socket; 25. a cover plate; 26. a first observation window; 27. and a second observation window.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the flow regulating valve comprises a valve body 1, wherein a valve cavity 2, a water inlet hole 3 and a water outlet hole 4 are formed in the valve body 1, a valve core 5 is rotatably arranged in the valve cavity 2, the valve core 5 is positioned between the water inlet hole 3 and the water outlet hole 4, the communication and the cut-off of the water inlet hole 3 and the water outlet hole 4 can be realized through the motion of the valve core 5, and the upper end of the valve core 5 is connected with a driving assembly 6 capable of driving the valve core 5 to; the flow regulating valve further comprises a flow regulating rod 7 capable of moving along the axis of the valve core 5, the flow regulating rod 7 sequentially penetrates through the driving assembly 6 and the valve core 5, and the lower end of the flow regulating valve can extend to a position between the water inlet hole 3 and the water outlet hole 4 through movement. Preferably, in this embodiment, the junction of the inlet opening 3 and the outlet opening 4, in combination with the valve chamber 2, forms a passage. When the valve core 5 rotates, the valve core can move along the vertical direction, and the valve core 5 can open or close the channel, so that the quick communication and cut-off of the valve are realized. The flow regulating rod 7 can move in the channel, so that the cross section of the channel is controlled, and the aim of regulating the water flow is fulfilled.

Specifically, the valve body 1 is internally threaded with a bonnet 8, the side wall of the valve core 5 is in threaded connection with an inner hole of the bonnet 8, and the driving assembly 6 comprises a hand wheel 9 connected with the upper end of the valve core 5. The internal thread of the valve cap 8 is connected with a locking cap 10, the valve core 5 penetrates through the locking cap 10, a sealing groove 11 is formed among the inner wall of the valve cap 8, the lower end face of the locking cap 10 and the outer side wall of the valve core 5, and a sealing gasket 12 is arranged in the sealing groove 11. A first through hole 13 is formed in the middle of the hand wheel 9, a second through hole 14 communicated with the first through hole 13 is formed in the middle of the valve core 5, and internal threads are formed in the side wall of the second through hole 14; the flow regulating rod 7 is positioned in the first through hole 13 and the second through hole 14 and is in threaded connection with the second through hole 14.

In order to limit the flow regulating rod 7, as shown in fig. 1 and 2, the second through hole 14 is a stepped hole and comprises an upper hole passage and a lower hole passage which are communicated with each other, the sectional area of the upper hole passage is smaller than that of the lower hole passage, a stepped surface 15 is formed between the upper hole passage and the lower hole passage, and the lower end of the flow regulating rod 7 is provided with a boss 16 which can be attached to the stepped surface 15. The hand wheel 9 is internally provided with a mounting groove 17, the mounting groove 17 is internally provided with a limiting slide block 18 which can only rotate along the axis of the hand wheel, the limiting slide block 18 is internally provided with a through hole III 19 which is coaxial with the through hole I13 and the through hole II 14, the upper end of the flow adjusting rod 7 is inserted into the through hole III 19 and is connected with the limiting slide block 18, and in the embodiment, the upper end of the flow adjusting rod 7 is preferably connected with the limiting slide block 18 through a bevel gear 21. The upper end of the flow regulating rod 7 is also provided with a wrench groove for inserting the flow regulating wrench 20.

As shown in fig. 2, 3 and 4, a scale slide block 22 is further rotatably arranged in the mounting groove 17, the side wall of the scale slide block 22 is engaged with the limit slide block 18, a first scale is arranged on the upper surface of the scale slide block 22, and a first observation area for observing the first scale is arranged on the upper surface of the hand wheel 9. A second scale is arranged on the upper surface of the limiting slide block 18, and a second observation area for observing the second scale is arranged on the upper surface of the hand wheel 9; the side wall of the limiting sliding block 18 is provided with a gear tooth 23, the side wall of the scale sliding block 22 is provided with a plurality of tooth grooves 24 capable of being meshed with the gear tooth 23, and each scale mark on the first scale corresponds to each tooth groove 24. In this embodiment, the upper surface of the handwheel 9 is provided with a cover plate 25 for closing the mounting groove 17, and the first observation area and the second observation area include a first observation window 26 and a second observation window 27 which are arranged on the cover plate 25.

Preferably, the second scale on the limiting slide block 18 comprises 10 numerical values of '0-9' which are uniformly distributed, and the numerical value '1' is arranged on the gear teeth 23; the first scale on the scale sliding block 22 comprises 10 scales which are uniformly distributed from 0 to 9, the tooth grooves 24 are 9 and respectively comprise 8

small tooth grooves

24 and 1 large tooth groove 24, wherein the 0 and the 9 jointly exist on the large tooth groove 24, and the other 8 small tooth grooves 24 respectively correspond to each scale. The limiting slide block 18 rotates, when the rotation angle is 36 degrees, the numerical value of the limiting slide block 18 on the second observation window 27 is changed, when one circle is reached, the limiting slide block 18 drives the scale slide block 22 to rotate for one scale, and the scale slide block 22 changes corresponding to the scale of the first observation window 26. The state of the flow adjusting rod 7 can be intuitively reflected through the numerical value displayed by the window, so that the state of the valve is reflected, when the valve is positioned in the maximum flow area, the numerical value on the limiting slide block 18 is '9', the scale on the scale slide block 22 is '9', the window displays '99', when the valve is positioned in the minimum flow area, the numerical value on the limiting slide block 18 is '0', the scale on the scale slide block 22 is '0', and the window displays '00', namely the smaller the window numerical value is, the smaller the valve flow area is, the larger the window numerical value is, and the larger the valve flow area is. The limiting sliding block 18 is provided with a gear tooth 23, the scale sliding block 22 is provided with a 9 gear tooth groove 24, a 1 large gear tooth groove 24 and an 8 small gear tooth groove 24, when the window displays '00', the limiting sliding block 18 is rotated, the gear tooth 23 on the limiting sliding block 18 is propped against the large gear tooth groove 24 of the scale sliding block 22, the scale sliding block 22 cannot be rotated, namely, the flow adjusting rod 7 cannot move downwards, and the limiting effect is achieved.

The working principle of the utility model is as follows:

when a user needs to reduce the flow, ① ensures that the valve core 5 is in a full-open state, ② inserts the flow adjusting wrench 20 into the wrench groove, the flow adjusting wrench 20 is rotated clockwise, the flow adjusting wrench 20 drives the flow adjusting rod 7 to rotate clockwise, the flow adjusting rod 7 moves downwards under the action of threads, the flow area of the valve is reduced, and therefore the flow in the pipeline is reduced, when the flow adjusting rod 7 rotates clockwise, the limiting slide block 18 rotates clockwise under the action of the bevel gear 21 on the flow adjusting rod 7, the scale slide block 22 rotates anticlockwise under the action of the limiting slide block 18, the display numerical values on the first observation window 26 and the second observation window 27 change from large to small along with the rotation of the limiting slide block 18 and the scale slide block 22, so that the user can accurately control the flow through the numerical values of the windows.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The flow regulating valve is characterized by comprising a valve body (1), wherein a valve cavity (2), a water inlet hole (3) and a water outlet hole (4) are formed in the valve body (1), a valve core (5) is rotatably arranged in the valve cavity (2), the valve core (5) is positioned between the water inlet hole (3) and the water outlet hole (4), the water inlet hole (3) and the water outlet hole (4) can be communicated and cut off through the movement of the valve core (5), and the upper end of the valve core (5) is connected with a driving assembly (6) capable of driving the valve core (5) to rotate; the flow regulating valve further comprises a flow regulating rod (7) capable of moving along the axis of the valve core (5), the flow regulating rod (7) sequentially penetrates through the driving assembly (6) and the valve core (5), and the lower end of the flow regulating valve can extend to a position between the water inlet hole (3) and the water outlet hole (4) through movement.

2. Flow regulating valve according to claim 1, characterized in that the valve body (1) is internally threaded with a bonnet (8), the side wall of the valve cartridge (5) is threaded with the inner bore of the bonnet (8), and the drive assembly (6) comprises a hand wheel (9) connected with the upper end of the valve cartridge (5).

3. The flow regulating valve according to claim 2, wherein a locking cap (10) is connected to the bonnet (8) in a threaded manner, the valve core (5) penetrates through the locking cap (10), a sealing groove (11) is formed between the inner wall of the bonnet (8), the lower end surface of the locking cap (10) and the outer side wall of the valve core (5), and a sealing gasket (12) is arranged in the sealing groove (11).

4. The flow regulating valve according to claim 3, wherein a first through hole (13) is formed in the middle of the hand wheel (9), a second through hole (14) communicated with the first through hole (13) is formed in the middle of the valve core (5), and an internal thread is formed in the side wall of the second through hole (14); the flow regulating rod (7) is positioned in the first through hole (13) and the second through hole (14) and is in threaded connection with the second through hole (14).

5. The flow regulating valve according to claim 4, wherein the second through hole (14) is a stepped hole and comprises an upper hole channel and a lower hole channel which are communicated, the sectional area of the upper hole channel is smaller than that of the lower hole channel, a stepped surface (15) is formed between the upper hole channel and the lower hole channel, and the lower end of the flow regulating rod (7) is provided with a boss (16) which can be attached to the stepped surface (15).

6. The flow regulating valve according to claim 5, wherein a mounting groove (17) is formed in the hand wheel (9), a limiting slide block (18) which can only rotate along the axis of the mounting groove (17) is arranged in the mounting groove (17), a through hole III (19) which is coaxial with the through hole I (13) and the through hole II (14) is formed in the limiting slide block (18), the upper end of the flow regulating rod (7) is inserted into the through hole III (19) and is connected with the limiting slide block (18), and a wrench groove for inserting the flow regulating wrench (20) is further formed in the upper end of the flow regulating rod (7).

7. The flow regulating valve according to claim 6, characterized in that the upper end of the flow regulating rod (7) is connected with the limit slider (18) by a bevel gear (21).

8. The flow regulating valve according to claim 7, wherein a scale sliding block (22) is further rotatably arranged in the mounting groove (17), the side wall of the scale sliding block (22) is meshed with the limit sliding block (18), a first scale is arranged on the upper surface of the scale sliding block (22), and a first observation area for observing the first scale is arranged on the upper surface of the hand wheel (9).

9. The flow regulating valve according to claim 8, wherein a second scale is arranged on the upper surface of the limiting slide block (18), and a second observation area for observing the second scale is arranged on the upper surface of the hand wheel (9); the side wall of the limiting sliding block (18) is provided with a gear tooth (23), the side wall of the scale sliding block (22) is provided with a plurality of tooth grooves (24) which can be meshed with the gear tooth (23), and each scale mark on the scale I corresponds to each tooth groove (24).

10. The flow regulating valve according to claim 9, characterized in that the upper surface of the hand wheel (9) is provided with a cover plate (25) for closing the mounting groove (17), and the first and second observation areas comprise a first (26) and a second (27) observation windows provided on the cover plate (25).