CN219013521U

CN219013521U - Pneumatic throttle valve with scales

Info

Publication number: CN219013521U
Application number: CN202223208054.6U
Authority: CN
Inventors: 范海浪; 蒋滨; 许杰; 林开峰; 林川波
Original assignee: Ningbo Intell Pneumatic Technology Co ltd
Current assignee: Ningbo Intell Pneumatic Technology Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-12
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a pneumatic throttle valve with scales, which comprises a valve body and an adjusting cap, wherein the valve body is provided with an air inlet and an air outlet, a nut is arranged in the valve body, the pneumatic throttle valve also comprises an adjusting rod assembly and a digital display assembly, the digital display assembly is fixedly arranged on the valve body, the adjusting cap is arranged on the digital display assembly, the adjusting rod assembly is in threaded connection with the nut, the top of the adjusting rod assembly is connected with the adjusting cap, the bottom of the adjusting rod assembly stretches into the air inlet, the digital display assembly comprises a connecting seat, a numerical dial and a shielding sleeve, the connecting seat is connected to the valve body, the numerical dial is connected to the connecting seat, the shielding sleeve is arranged on the numerical dial and is connected with the connecting seat, the numerical dial is provided with a numerical scale, the shielding sleeve is provided with a display notch, the numerical dial is provided with a clamping groove, the adjusting rod assembly is provided with a convex rib which is matched with the clamping groove in a rotating way, and a user can precisely adjust the throttle valve by displaying the exhaust flow of the throttle valve.

Description

Pneumatic throttle valve with scales

Technical Field

The utility model relates to the technical field of pneumatic accessories, in particular to a pneumatic throttle valve with scales.

Background

A throttle valve is a valve that controls the flow of a fluid by changing the throttle cross section or throttle length. The throttle valve and the one-way valve are connected in parallel to form a one-way throttle valve, and the throttle valve and the one-way throttle valve are simple flow control valves, and the throttle valve is normally realized by adjusting the area of the throttle orifice because the flow rate of the throttle valve depends on the size of the area of the throttle orifice.

For example, chinese patent (publication No. CN 208535176U) discloses a pneumatic throttle valve, which comprises a valve body, a valve sleeve, an adjusting rod and a valve core, wherein the valve sleeve is sleeved on the outer wall of the valve body, an air inlet is arranged on the valve body, an air outlet is arranged on the valve sleeve, a connecting channel for communicating the air inlet with the air outlet is arranged in the valve sleeve, the valve core positioned at the air inlet is arranged in the valve body, an air inlet hole is arranged at the center of the valve core, the bottom of the adjusting rod is conical, the bottom of the adjusting rod penetrates through the valve sleeve to extend into the air inlet hole, an adjusting cap is sleeved outside the valve sleeve and extends into the valve sleeve to be connected with the top of the adjusting rod, limiting teeth are arranged on the inner wall of the adjusting cap, and limiting grooves matched with the limiting teeth are formed in the periphery of the valve sleeve.

When the adjustable valve is used, air enters from the air inlet, is discharged from the air outlet through the air inlet and the connecting channel, when the exhaust flow is required to be adjusted, the adjusting cap drives the adjusting rod to rotate by rotating the adjusting cap, so that the adjusting rod moves in the valve sleeve, the length of the bottom of the adjusting rod extending into the air inlet is changed, the cross-sectional area of the air inlet is changed to realize the adjustment of the exhaust flow, after the exhaust flow is adjusted to be proper, the adjusting cap is pressed down towards the direction of the valve sleeve, the limiting tooth is clamped in the limiting groove, so that the adjusting cap is limited, the knob does not rotate any more, the adjusting rod is locked, when the exhaust flow is required to be adjusted again, the adjusting cap is only pulled up, the limiting tooth is separated from the limiting groove, the limiting groove is not limited by the limiting tooth, and the adjusting cap can rotate again, so that the exhaust flow is adjusted.

However, the present utility model has the disadvantage that the user can only rotate the adjusting cap by feel/experience when adjusting the exhaust flow, but cannot accurately obtain the flow value of the throttle valve, the adjustment is inconvenient, and the precise adjustment cannot be performed, so that errors are easily caused when the present utility model is in actual use, and the adjustment to the preset flow is not facilitated for the user.

Disclosure of Invention

The utility model aims at overcoming the defects and shortcomings of the prior art, and provides the pneumatic throttle valve with scales, which can display the flow signal of the current throttle valve, and has the advantages of simple and reasonable structure and convenient operation

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model discloses a graduated pneumatic throttle valve, which comprises a valve body and an adjusting cap, wherein an air inlet and an air outlet are formed in the valve body, a communicated air channel is formed between the air inlet and the air outlet, a nut is fixedly arranged in the valve body, the valve further comprises an adjusting rod assembly and a digital display assembly, the digital display assembly is fixedly arranged on the valve body, the adjusting cap is rotatably arranged on the digital display assembly, the adjusting rod assembly penetrates through the digital display assembly and is in threaded connection with the nut, the top of the adjusting rod assembly stretches into the adjusting cap and is in transmission connection with the adjusting cap, the bottom of the adjusting rod assembly stretches into the air inlet, the digital display assembly comprises a connecting seat, a numerical dial and a shielding sleeve, the connecting seat is fixedly connected to the valve body, the numerical dial is rotatably connected to the connecting seat, the shielding sleeve is fixedly connected with the connecting seat, the numerical scale is circumferentially arranged on the outer wall of the numerical dial, a display notch for displaying the numerical scale is formed in the shielding sleeve, a clamping groove is circumferentially formed in the inner wall of the numerical dial, a convex edge matched with the clamping groove is formed in the adjusting rod assembly, the adjusting rod assembly rotates to drive the numerical dial to rotate, and the numerical dial rotates to rotate through the convex edge matched with the clamping groove.

Further, the valve body comprises a valve body and a valve sleeve, the valve sleeve is fixedly connected with the valve body, an air inlet is formed in the valve body, an air outlet is formed in the valve sleeve, a valve port corresponding to the air outlet is formed in the valve sleeve, a nut is fixedly arranged in the valve sleeve, and the connecting seat is fixedly connected to the valve sleeve.

Further, an elastic arm matched with the clamping groove is arranged on the connecting seat.

Further, adjust the pole subassembly and include first regulation pole and second regulation pole, be provided with the bead on the first regulation pole, and first regulation pole passes digital display subassembly and nut threaded connection, and the top of first regulation pole is connected with the regulation cap transmission, and the bottom of first regulation pole is connected with the second regulation pole transmission.

Further, the bottom of first regulation pole is provided with the spread groove, and the second is adjusted the pole top and is provided with the grafting end that matches with the spread groove, and the grafting end is pegged graft in the spread groove, and the bottom of second regulation pole stretches into in the air inlet.

Further, a conical groove is formed in the bottom of the second adjusting rod.

Further, a first limiting step inclined in a spiral mode is arranged at the valve port, and a second limiting step matched with the first limiting step is arranged on the adjusting rod assembly.

Further, a locking seat is arranged on the shielding sleeve, and the adjusting cap is rotatably arranged on the locking seat.

Further, the inner wall of the shielding sleeve is provided with a first limiting tooth, and the locking seat is provided with a first limiting groove matched with the first limiting tooth.

Further, the outer wall of valve pocket is provided with the second spacing groove along circumference, is provided with the second spacing groove on the connecting seat, is provided with second spacing groove complex second spacing tooth on the connecting seat.

The beneficial effects of the utility model are as follows: through setting up the digital display subassembly on the choke valve, the user is when rotatory adjusting the cap, and the digital display subassembly can show the numerical scale of current choke valve flow signal, so the user can carry out the fine adjustment to the choke valve according to the numerical scale of current demonstration.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model in a first view overall;

FIG. 3 is a schematic perspective view of the present utility model in its entirety at a second viewing angle;

FIG. 4 is a schematic view of the overall first perspective of the present utility model in an exploded state;

FIG. 5 is a schematic view of the overall second perspective of the present utility model in an exploded state;

FIG. 6 is a perspective view of the present utility model in an exploded view from a third perspective;

FIG. 7 is a schematic perspective view of a second adjusting lever according to the present utility model;

fig. 8 is a schematic cross-sectional view of the valve housing of the present utility model.

In fig. 1-8: 1. a valve body; 2. a valve sleeve; 4. a second adjusting lever; 5. a nut; 6. an air inlet; 7. an air outlet; 8. a first adjusting lever; 9. an adjustment cap; 10. a numerical dial; 11. a connecting seat; 12. a shielding sleeve; 13. a numerical scale; 14. a clamping groove; 15. displaying the notch; 16. an elastic arm; 17. a locking seat; 18. a first limit groove; 19. a connecting groove; 20. a one-way sealing ring; 21. a rib; 23. the second limit groove; 24. the second limiting teeth; 25. a valve port; 26. a first limit step; 27. a second limit step; 28. a conical groove; 29. and a plug end.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The pneumatic throttle valve with scales as shown in fig. 1-8 comprises a valve body and an adjusting cap 9, wherein an air inlet 6 and an air outlet 7 are arranged on the valve body, a communicated air channel is formed between the air inlet 6 and the air outlet 7, preferably, in the embodiment, the valve body comprises a valve body 1 and a valve sleeve 2, the valve sleeve 2 is fixedly connected with the valve body 1, the air inlet 6 is arranged on the valve body 1, the air outlet 7 is arranged on the valve sleeve 2, a valve port 25 corresponding to the air outlet 7 is arranged in the valve sleeve 2, a nut 5 is fixedly arranged in the valve sleeve 2, and the connecting seat 11 is fixedly connected to the valve sleeve 2.

Preferably, in this embodiment, the device further includes a regulating rod assembly and a digital display assembly, the digital display assembly is fixedly disposed on the valve sleeve 2, the regulating cap 9 is rotatably disposed on the digital display assembly, preferably, in this embodiment, the regulating rod assembly includes a first regulating rod 8 and a second regulating rod 4, a rib 21 is disposed on the first regulating rod, the first regulating rod 8 passes through the digital display assembly and is in threaded connection with the nut 5, the top of the first regulating rod 8 extends into the regulating cap 9 to be in transmission connection with the regulating cap 9, when the regulating cap 9 rotates, the first regulating rod 8 moves up and down relative to the nut 5, and the bottom of the first regulating rod 8 is in transmission connection with the second regulating rod 4. Specifically, the bottom of the first adjusting rod 8 is provided with a connecting groove 19, the top of the second adjusting rod 4 is provided with a plug-in end 29 matched with the connecting groove 19, the plug-in end 29 is plugged in the connecting groove 19, and the bottom of the second adjusting rod 4 extends into the air inlet 6. Preferably, in this embodiment, the cross section of the connecting groove 19 and the insertion end 29 is rectangular. When the first adjusting rod 8 moves up and down relative to the nut 5, the second adjusting rod 4 is driven to move up and down relative to the valve port 25.

Specifically, the bottom of the second adjusting rod 4 is provided with a conical groove 28, the bottom opening of the conical groove 28 is large, and the top opening is small, so that when the second adjusting rod 4 moves upwards, the air inlet cross-sectional area at the valve port 25 is increased, the air flow rate is increased, when the second adjusting rod 4 moves downwards, the air inlet cross-sectional area at the valve port 25 is reduced, the air flow rate is reduced, and the air inlet cross-sectional area is changed by the up-and-down movement of the second adjusting rod 4, so that the air discharge flow rate is adjusted. Preferably, in this embodiment, the second adjusting rod 4 is sleeved with the unidirectional sealing ring 20, so that gas can only enter from the gas inlet 6 and cannot be discharged from the gas inlet 6, so that the second adjusting rod has good tightness and can effectively prevent gas leakage or backflow.

Specifically speaking, the digital display subassembly includes connecting seat 11, numerical scale 10 and shielding cover 12, and connecting seat 11 fixed connection is to valve pocket 2, specifically speaking, the outer wall of valve pocket 2 is provided with second spacing groove 23 along circumference, is provided with second spacing tooth 24 of second spacing groove 23 complex on the connecting seat 11 for connecting seat 11 is more firm with the relation of being connected of valve pocket 2, is difficult for taking place the displacement.

The numerical scale 10 is rotatably connected to the connecting seat 11, a shielding sleeve 12 is arranged on the numerical scale 10, the shielding sleeve 12 is fixedly connected with the connecting seat 11, numerical scales 13 are arranged on the outer wall of the numerical scale 10 along the circumferential direction, and a display notch 15 for displaying the numerical scales 13 is formed in the shielding sleeve 12.

Specifically, the shielding sleeve 12 is provided with a locking seat 17, and the adjusting cap 9 is rotatably provided on the locking seat 17. The inner wall of the adjusting cap 9 is provided with a first limiting tooth, and the locking seat 17 is provided with a first limiting groove 18 matched with the first limiting tooth. After the user adjusts to suitable exhaust flow, push down adjusting cap 9 for first spacing tooth card locates in the first spacing groove 18, thereby will adjust cap 9 spacing, avoid adjusting cap 9 not by the rotation of expecting, cause the error, guaranteed exhaust flow's stability. When the exhaust flow is required to be regulated, the regulating cap 9 is only required to be pulled up, so that the first limiting teeth are separated from the first limiting grooves 18, and the regulating cap 9 can rotate again.

Specifically speaking, the inner wall of the numerical dial 10 is provided with a clamping groove 14 along the circumferential direction, the rib 21 arranged on the first adjusting rod 8 is matched with the clamping groove 14, when a user rotates the adjusting cap, the first adjusting rod 8 rotates, the rib 21 rotates along with the first adjusting rod, when the rib 21 rotates to the concave position of the clamping groove 14 to prop against, the rib 21 pushes the clamping groove 14 in the numerical dial, so that the numerical dial 10 rotates one grid, the numerical value displayed at the display notch 15 changes, specifically, when the user rotates the adjusting cap 9, the numerical value scale 13 displayed at the display notch 15 changes synchronously, so that the user can observe the numerical value scale 13 displayed at the notch 15, know the flow signal of the current throttle valve, and the user can precisely adjust the throttle valve conveniently.

Preferably, in this embodiment, the connection seat 11 is provided with an elastic arm 16 that mates with the clamping groove 14. The elastic arm 16 is abutted in the clamping groove 14, so as to play a role in fixing, and under the action of the elastic arm 16, the numerical dial 10 is not easy to rotate relative to the connecting seat 11, so that errors caused by unexpected rotation of the numerical dial 10 are reduced.

Preferably, in this embodiment, the first limiting step 26 inclined in a spiral is disposed at the valve port 25, and the second adjusting rod 4 is provided with a second limiting step 27 matched with the first limiting step 26, so that the second adjusting rod 4 can be effectively limited.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims

1. The utility model provides a take pneumatic choke valve of scale, includes valve body and regulating cap (9), is provided with air inlet (6) and gas outlet (7) on the valve body, is formed with the gas passage of intercommunication between air inlet (6) and gas outlet (7), and the valve body internal fixation is provided with nut (5), its characterized in that: still including adjusting pole subassembly and digital display subassembly, digital display subassembly is fixed to be set up on the valve body, adjusts cap (9) rotationally and sets up on digital display subassembly, adjusts pole subassembly and pass digital display subassembly and nut (5) threaded connection, adjusts the top of pole subassembly and stretches into in adjusting cap (9), is connected with adjusting cap (9) transmission, adjusts the bottom of pole subassembly and stretches into in air inlet (6), digital display subassembly includes connecting seat (11), numerical scale (10) and shelters from cover (12), connecting seat (11) fixed connection to the valve body, numerical scale (10) rotationally are connected to connecting seat (11), be provided with on numerical scale (10) and shelter from cover (12) and connecting seat (11) fixed connection, numerical scale (10) outer wall is provided with numerical scale (13) along circumference, and set up on sheltering from cover (12) and show breach (15) that show numerical scale (13), numerical scale (10) inner wall is provided with draw-in groove (14) along circumference, be provided with on the regulation pole subassembly and rotate (21) with draw-in groove (14) complex, adjust lever subassembly rotation (21) and drive numerical scale (21) and bead (21) take place rotation cooperation through bead (21).

2. A graduated pneumatic throttle in accordance with claim 1, wherein: the valve body comprises a valve body (1) and a valve sleeve (2), wherein the valve sleeve (2) is fixedly connected with the valve body (1), an air inlet (6) is formed in the valve body (1), an air outlet (7) is formed in the valve sleeve (2), a valve port (25) corresponding to the air outlet (7) is formed in the valve sleeve (2), a nut (5) is fixedly arranged in the valve sleeve (2), and the connecting seat (11) is fixedly connected to the valve sleeve (2).

3. A graduated pneumatic throttle in accordance with claim 2, wherein: an elastic arm (16) matched with the clamping groove (14) is arranged on the connecting seat (11).

4. A graduated pneumatic throttle in accordance with claim 1, wherein: the adjusting rod assembly comprises a first adjusting rod (8) and a second adjusting rod (4), a convex edge (21) is arranged on the first adjusting rod (8), the first adjusting rod (8) penetrates through the digital display assembly to be in threaded connection with the nut (5), the top of the first adjusting rod (8) is in transmission connection with the adjusting cap (9), and the bottom of the first adjusting rod (8) is in transmission connection with the second adjusting rod (4).

5. A graduated pneumatic throttle in accordance with claim 4, wherein: the bottom of first regulation pole (8) is provided with spread groove (19), and second regulation pole (4) top is provided with grafting end (29) with spread groove (19) matched, and grafting end (29) peg graft in spread groove (19), and the bottom of second regulation pole (4) stretches into in air inlet (6).

6. A graduated pneumatic throttle in accordance with claim 4, wherein: the bottom of the second adjusting rod (4) is provided with a conical groove (28).

7. A graduated pneumatic throttle in accordance with claim 2, wherein: the valve port (25) is provided with a first limiting step (26) which is spirally inclined, and the adjusting rod assembly is provided with a second limiting step (27) which is matched with the first limiting step (26).

8. A graduated pneumatic throttle in accordance with claim 1, wherein: the shielding sleeve (12) is provided with a locking seat (17), and the adjusting cap (9) is rotatably arranged on the locking seat (17).

9. A graduated pneumatic throttle in accordance with claim 8, wherein: the inner wall of the shielding sleeve (12) is provided with a first limiting tooth, and the locking seat (17) is provided with a first limiting groove (18) matched with the first limiting tooth.

10. A graduated pneumatic throttle in accordance with claim 2, wherein: the outer wall of the valve sleeve (2) is provided with a second limiting groove (23) along the circumferential direction, the connecting seat (11) is provided with the second limiting groove (23), and the connecting seat (11) is provided with a second limiting tooth (24) matched with the second limiting groove (23).