CN217381646U

CN217381646U - Flow control device with good sealing effect

Info

Publication number: CN217381646U
Application number: CN202123200951.8U
Authority: CN
Inventors: 靳晓峰; 邓弼文; 车富绒
Original assignee: Shaanxi Dinglie Control System Co ltd
Current assignee: Shaanxi Dinglie Control System Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-09-06
Anticipated expiration: 2031-12-20

Abstract

The utility model is suitable for the technical field of valves, and provides a flow control device with good sealing effect, which comprises a valve shell, a flow cavity, a driving box and a flow velocity measurer; the flow cavity is arranged in the valve shell, and connecting pipes are arranged on two sides of the valve shell. This sealed effectual flow control device, when the rolling disc rotates, threaded rod accessible and last bevel gear threaded connection, make the threaded rod drive the carriage release lever rebound, when the carriage release lever continues the rebound afterwards, it can contact with the second sealing washer to go up the moving sleeve when moving sleeve contact and first sealing washer contact down, make and keep sealed between sealed hole and the carriage release lever all the time owing to adopt the reducible wearing and tearing of a plurality of rubber seals, avoided when valve shell time uses the back, produced wearing and tearing between valve shell and the carriage release lever, make easily sealed hole bigger and bigger, the liquid that leads to the valve shell spills over through sealed hole easily, be difficult to the problem of maintenance.

Description

Flow control device with good sealing effect

Technical Field

The utility model belongs to the technical field of the valve, especially, relate to a sealed effectual flow control device.

Background

The flow control valve is a multifunctional valve which adopts a high-precision pilot mode to control flow, is suitable for a pipeline of a water distribution pipe needing to control flow and pressure, keeps the preset flow unchanged, limits the overlarge flow to a preset value, properly reduces the upstream high pressure, does not influence the flow of the downstream of a main valve even if the pressure of the upstream of the main valve is changed, and is connected in a flange mode and a thread mode; welding formula, control regulation mode divide into automatic and manual, and present flow control valve adopts automatic control valve usually when for the convenience of installation use, and the most part adopts the inside separation piece of remote control motor drive telescopic link drive valve to remove when using.

The existing flow control device has the problems that the gap is easy to be enlarged due to the fact that a small gap exists between the valve main body shell and the telescopic rod, and a single rubber ring is usually adopted for sealing, after the valve is used for a long time, the gap is easy to be enlarged, liquid in the valve is easy to overflow through the gap, and the maintenance is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sealed effectual flow control device aims at solving when the valve uses the back for a long time, and produced wearing and tearing between valve shell and the telescopic link make the space bigger and bigger easily, lead to the inside liquid of valve to spill over through the space easily, are difficult to the problem of maintenance.

The utility model is realized in such a way that the flow control device with good sealing effect comprises a valve shell, a flow cavity, a driving box and a flow velocity measurer; the flow cavity is arranged inside the valve shell, connecting pipes are arranged on two sides of the valve shell, the driving box is detachably arranged at the top of the valve shell, a moving rod is rotatably arranged in an inner cavity of the valve shell, a blocking seat is fixedly arranged at the bottom of the moving rod, and a rubber pad is arranged at the bottom of the blocking seat; a rear baffle is fixedly installed on the rear side of the top inside the flow cavity, a guide plate is vertically and fixedly installed at the bottom of the rear baffle, a front baffle is fixedly installed on the front side of the bottom inside the inner cavity of the flow cavity, a sealing seat is transversely and fixedly installed between the bottom of the rear baffle and the top of the front baffle, a flow opening is formed inside the sealing seat, and a sealing groove matched with the blocking seat is formed in the top of the sealing seat; the top of the inside of the valve shell is provided with a sealing hole communicated with the flow cavity, the bottom of the inner wall of the sealing hole is transversely provided with two first sealing rings, the surface of the movable rod, which is positioned at the bottom of the inner cavity of the sealing hole, is provided with two lower movable sleeves, the top of the inner wall of the sealing hole is provided with two second sealing rings, the surface of the movable rod, which is positioned at the top of the inner cavity of the sealing hole, is provided with an upper movable sleeve, and the top end of the movable rod extends to the inner cavity of the driving box; the inner cavity of the driving box is rotatably and vertically provided with a threaded rod, the bottom end of the threaded rod is in bolted connection with the top end of the moving rod, the surface of the threaded rod is in threaded connection with a rotating disc, the upper surface of the rotating disc is rotatably connected with the inner wall surface of the driving box, and the top end of the threaded rod can extend upwards to the outside of the driving box in a sliding mode.

Preferably, a flow rate measuring rod is rotatably and transversely arranged in the inner cavity of the flow cavity and at the bottom of the sealing seat, and blades are arranged on the surface of the flow rate measuring rod.

Preferably, a flow rate measurer is arranged on the back of the valve shell, and one end of the flow rate measuring rod rotatably extends into the flow rate measurer.

Preferably, spring seats are fixedly mounted on two sides of the inner wall of the driving box, a sliding plate is vertically arranged in an inner cavity of each spring seat in a sliding mode, and positioning rods are fixedly mounted on two sides of the top of the valve shell in a vertical mode.

Preferably, a fixed block extending into the positioning rod is fixedly mounted on one side of the sliding plate, and a support spring is telescopically and transversely arranged between the other side of the sliding plate and the inner wall surface of the spring seat.

Preferably, the back of the sliding plate is provided with a sliding block extending to the outside of the driving box, and the back of the driving box and the position at the top end of the movable rod are provided with an opening and closing door.

Preferably, the surface of rolling disc is provided with last bevel gear, rotationally transversely be provided with the dwang in the front of drive case inner chamber, the front of valve shell is provided with the drive dwang pivoted driving motor, the surface of dwang be provided with go up bevel gear engaged with lower bevel gear.

Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a flow control device with good sealing effect, when the rotating disc rotates, the threaded rod can be connected with the upper bevel gear through the thread, so that the threaded rod drives the moving rod to move upwards, then the moving rod drives the lower moving sleeve to move upwards, the lower moving sleeve is attached to the first sealing ring to seal, simultaneously the upper moving sleeve is removed from contacting with the second sealing ring, then when the moving rod continues to move upwards, the lower moving sleeve contacts with the first sealing ring, simultaneously the upper moving sleeve can contact with the second sealing ring, the sealing hole and the moving rod can be always sealed, simultaneously, the abrasion can be reduced due to the adoption of a plurality of rubber seals, the abrasion generated between the valve shell and the moving rod after the valve shell is used for a long time is avoided, the sealing hole is easy to be larger, and the liquid of the valve shell is easy to overflow through the sealing hole, difficult maintenance.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic front sectional view of the structure of the present invention;

fig. 4 is a schematic top view of the structure of the lower bevel gear and the upper bevel gear of the present invention.

In the figure: 1-valve shell, 2-flow cavity, 3-rear baffle, 4-first sealing ring, 5-guide plate, 6-flow rate measuring rod, 7-blade, 8-front baffle, 9-sealing seat, 10-isolating seat, 11-positioning rod, 12-sliding plate, 13-spring seat, 14-driving box, 15-rotating disc, 16-rotating rod, 17-upper bevel gear, 18-moving rod, 19-sealing hole, 20-second sealing ring, 21-upper moving sleeve, 22-lower moving sleeve, 23-threaded rod, 24-flow rate measurer and 25-lower bevel gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, the present invention provides a technical solution: a flow control device with good sealing effect comprises a valve shell 1, a flow cavity 2, a driving box 14 and a flow rate measurer 24; the flow cavity 2 is arranged inside the valve shell 1, connecting pipes are arranged on two sides of the valve shell 1, the driving box 14 is detachably arranged at the top of the valve shell 1, the inner cavity of the valve shell 1 is rotatably provided with a moving rod 18, the bottom of the moving rod 18 is fixedly provided with a separation seat 10, and the bottom of the separation seat 10 is provided with a rubber pad.

The rear side fixed mounting at the inside top in chamber 2 that flows has backplate 3, and the vertical fixed mounting in backplate 3's bottom has guide plate 5, and baffle 8 before the front side fixed mounting of 2 inner chambers in chamber bottom that flow has, horizontal fixed mounting has seal receptacle 9 between 3 bottoms of backplate and the preceding baffle 8 tops, and the opening of circulation has been seted up to the inside of seal receptacle 9, and the seal groove with the 10 looks adaptations of separation seat is seted up at the top of seal receptacle 9.

When the moving rod 18 drives the blocking seat 10 to move downwards, the rubber pad at the bottom of the blocking seat 10 can seal against the sealing groove at the top of the sealing seat 9 to prevent liquid from flowing.

The inside top of valve shell 1 is seted up and is flowed the sealed hole 19 that the chamber 2 is linked together, and the bottom of sealed hole 19 inner wall transversely is provided with first sealing washer 4, and first sealing washer 4 is provided with two, and the surface that carriage release lever 18 is located sealed hole 19 inner chamber bottom is provided with down and removes cover 22, and it is provided with two to move cover 22 down, and the top of sealed hole 19 inner wall is provided with second sealing washer 20, and second sealing washer 20 is provided with two.

The space between the two second sealing rings 20 is larger than the space between the two first sealing rings 4, so that when the separation seat 10 is attached to the sealing seat 9, the lower moving sleeve 22 is not in contact with the first sealing rings 4, and the upper moving sleeve 21 is in contact with the second sealing rings 20 at the bottom, when the moving rod 18 moves upwards, the two lower moving sleeves 22 can move upwards while contacting the first sealing rings 4, so that when the moving rod 18 moves upwards to drive the lower moving sleeves 22 to be in contact with the first sealing rings 4, the upper moving sleeves 21 can be attached to the second sealing rings 20 at the top to keep sealing, and the plurality of first sealing rings 4 and the plurality of second sealing rings 20 are adopted, so that the design of an integral sealing cylinder is avoided, and the increase of abrasion degree while the resistance received by the moving rod 18 during moving is increased.

The surface of the movable rod 18 positioned at the top of the inner cavity of the sealing hole 19 is provided with an upper movable sleeve 21, and the top end of the movable rod 18 extends to the inner cavity of the driving box 14; the inner cavity of the driving box 14 is rotatably and vertically provided with a threaded rod 23, the bottom end of the threaded rod 23 is in bolted connection with the top end of the moving rod 18, the surface of the threaded rod 23 is in threaded connection with a rotating disc 15, the upper surface of the rotating disc 15 is rotatably connected with the inner wall surface of the driving box 14, and the top end of the threaded rod 23 slidably extends upwards to the outside of the driving box 14.

In this embodiment, when the rotating disc 15 rotates, the threaded rod 23 may be in threaded connection with the upper bevel gear 17, such that the threaded rod 23 drives the moving rod 18 to move upward, and then the moving rod 18 drives the lower moving sleeve 22 to move upward, such that the upper moving sleeve 21 is removed from contact with the second sealing ring 20 while the lower moving sleeve 22 is attached to the first sealing ring 4 for sealing, and then when the moving rod 18 continues to move upward, the lower moving sleeve 22 is contacted with the first sealing ring 4 while the upper moving sleeve 21 is contacted with the second sealing ring 20, such that the sealing hole 19 and the moving rod 18 are always sealed, and since a plurality of rubber seals are adopted, abrasion caused between the valve housing 1 and the moving rod 18 after the valve housing 1 is used for a long time is avoided, such that the sealing hole 19 is easily enlarged, and the liquid in the valve housing 1 is easily overflowed through the sealing hole 19, difficult maintenance.

Further, the inner cavity of the flow cavity 2 and the bottom of the sealing seat 9 are transversely provided with a flow rate measuring rod 6 in a rotatable manner, and the surface of the flow rate measuring rod 6 is provided with a blade 7.

In this embodiment, when the liquid passes through the flow rate measuring rod 6, the blade 7 can be pushed to move, so that the blade 7 drives the flow rate measuring rod 6 to rotate.

Further, a flow rate measuring device 24 is provided on the back surface of the valve housing 1, and one end of the flow rate measuring rod 6 is rotatably extended into the flow rate measuring device 24.

In the present embodiment, when the flow rate measuring rod 6 rotates, the flow rate measurer 24 may perform flow rate measurement according to the force of rotation of the blade 7.

Furthermore, spring seats 13 are fixedly mounted on two sides of the inner wall of the driving box 14, sliding plates 12 are vertically arranged in inner cavities of the spring seats 13 in a sliding mode, and positioning rods 11 are vertically and fixedly mounted on two sides of the top of the valve shell 1.

In this embodiment, when the drive box 14 is assembled with the valve housing 1, the bottom of the drive box 14 may be attached to the top of the valve housing 1, and then the positioning rod 11 is inserted into the inner cavity of the drive box 14.

Further, a fixed block extending into the positioning rod 11 is fixedly mounted on one side of the sliding plate 12, and a support spring is telescopically and transversely arranged between the other side of the sliding plate 12 and the inner wall surface of the spring seat 13.

In the present embodiment, when the positioning rod 11 is inserted into the inner cavity of the driving box 14, the support spring may push the sliding plate 12 to move so that the fixing block is inserted into the positioning rod 11.

Further, a slider extending to the outside of the driving box 14 is provided on the back of the sliding plate 12, and an opening and closing door is provided on the back of the driving box 14 and at the top end of the movable rod 18.

In this embodiment, the sliding block facilitates the worker to manually operate the sliding plate 12 to slide, and the door is opened and closed to facilitate the worker to connect the threaded rod 23 and the moving rod 18.

Further, an upper bevel gear 17 is arranged on the surface of the rotating disc 15, a rotating rod 16 is rotatably and transversely arranged on the front surface of the inner cavity of the driving box 14, a driving motor for driving the rotating rod 16 to rotate is arranged on the front surface of the valve shell 1, and a lower bevel gear 25 meshed with the upper bevel gear 17 is arranged on the surface of the rotating rod 16.

In the present embodiment, the lower bevel gear 25 is engaged with the upper bevel gear 17 by driving the rotating lever 16, and then the rotating disc 15 is rotated so that the rotating disc 15 moves the threaded rod 23 upward or downward by being screwed.

The utility model discloses a theory of operation and use flow: the utility model discloses after installing, when rolling disc 15 rotates, threaded rod 23 accessible and last bevel gear 17 threaded connection, make threaded rod 23 drive carriage release 18 rebound, carriage release 18 drives down and removes cover 22 rebound afterwards, make down remove cover 22 laminating first sealing washer 4 go up when sealing and remove cover 21 and remove the contact with second sealing washer 20, when carriage release 18 continues the rebound afterwards, it can contact with second sealing washer 20 to go up to remove cover 21 when first sealing washer 4 contacts down, make and remain sealed all the time between sealed hole 19 and the carriage release 18, remove the contact with seal receptacle 9 when separating receptacle 10, can make liquid normally flow can.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. The utility model provides a sealed effectual flow control device which characterized in that: comprises a valve shell (1), a flow cavity (2), a driving box (14) and a flow rate measurer (24);

the flow cavity (2) is arranged inside the valve shell (1), connecting pipes are arranged on two sides of the valve shell (1), the driving box (14) is detachably arranged on the top of the valve shell (1), a moving rod (18) is rotatably arranged in an inner cavity of the valve shell (1), a blocking seat (10) is fixedly arranged at the bottom of the moving rod (18), and a rubber pad is arranged at the bottom of the blocking seat (10);

a rear baffle (3) is fixedly mounted on the rear side of the top inside the flow chamber (2), a guide plate (5) is vertically and fixedly mounted at the bottom of the rear baffle (3), a front baffle (8) is fixedly mounted on the front side of the bottom of an inner cavity of the flow chamber (2), a sealing seat (9) is transversely and fixedly mounted between the bottom of the rear baffle (3) and the top of the front baffle (8), a flow opening is formed inside the sealing seat (9), and a sealing groove matched with the blocking seat (10) is formed in the top of the sealing seat (9);

the top of the inside of the valve shell (1) is provided with a sealing hole (19) communicated with the flow cavity (2), the bottom of the inner wall of the sealing hole (19) is transversely provided with two first sealing rings (4), the surface of the movable rod (18) at the bottom of the inner cavity of the sealing hole (19) is provided with two lower movable sleeves (22), the top of the inner wall of the sealing hole (19) is provided with two second sealing rings (20), the surface of the movable rod (18) at the top of the inner cavity of the sealing hole (19) is provided with two upper movable sleeves (21), and the top end of the movable rod (18) extends to the inner cavity of the driving box (14);

the inner cavity of the driving box (14) is rotatably and vertically provided with a threaded rod (23), the bottom end of the threaded rod (23) is connected with the top end of the moving rod (18) through a bolt, the surface of the threaded rod (23) is in threaded connection with a rotating disc (15), the upper surface of the rotating disc (15) is rotatably connected with the inner wall surface of the driving box (14), and the top end of the threaded rod (23) can slidably and upwardly extend to the outside of the driving box (14).

2. A good seal flow control device as defined in claim 1, wherein: the inner cavity of the flow cavity (2) is positioned at the bottom of the sealing seat (9) and is rotatably and transversely provided with a flow velocity measuring rod (6), and the surface of the flow velocity measuring rod (6) is provided with blades (7).

3. A good seal flow control device as claimed in claim 2, wherein: the back of the valve shell (1) is provided with a flow rate measurer (24), and one end of the flow rate measuring rod (6) rotatably extends into the flow rate measurer (24).

4. A good seal flow control device as defined in claim 1, wherein: spring seats (13) are fixedly mounted on two sides of the inner wall of the driving box (14), sliding plates (12) are vertically arranged in an inner cavity of each spring seat (13) in a sliding mode, and positioning rods (11) are fixedly mounted on two sides of the top of the valve shell (1) in a vertical mode.

5. A good seal flow control device as claimed in claim 4, wherein: a fixed block extending into the positioning rod (11) is fixedly mounted on one side of the sliding plate (12), and a supporting spring is telescopically and transversely arranged between the other side of the sliding plate (12) and the inner wall surface of the spring seat (13).

6. A good seal flow control device as claimed in claim 5, wherein: the back of the sliding plate (12) is provided with a sliding block extending to the outside of the driving box (14), and the back of the driving box (14) and the position at the top end of the movable rod (18) are provided with a switch door.

7. A good seal flow control device as defined in claim 1, wherein: the surface of rolling disc (15) is provided with bevel gear (17), rotationally transversely be provided with dwang (16) in the front of drive case (14) inner chamber, the front of valve casing (1) is provided with the drive dwang (16) pivoted driving motor, the surface of dwang (16) be provided with go up bevel gear (17) engaged with down bevel gear (25).