CN220706433U

CN220706433U - Throttle valve

Info

Publication number: CN220706433U
Application number: CN202321859744.XU
Authority: CN
Inventors: 张中文; 张崇鹤
Original assignee: Zhejiang Xinhao Valve Co ltd
Current assignee: Zhejiang Xinhao Valve Co ltd
Priority date: 2023-07-15
Filing date: 2023-07-15
Publication date: 2024-04-02
Anticipated expiration: 2033-07-15

Abstract

The utility model discloses a throttle valve, which relates to the technical field of valves and comprises a valve body and an inlet, wherein a main rod penetrates through the valve body, an arc-shaped sealing gasket is attached to the outer side edge of a throttle plate, the top end of the main rod is connected with a slow motor, a support rod is welded on the upper surface of the valve body, a circular ring sleeve is arranged above a dial, the inlet is positioned on the right side of the valve body, and a second flange is arranged on the right side of a first flange. According to the utility model, the rotation of the main rod is controlled by the slow motor, so that the angle between the throttle plate and the inner wall of the valve body is changed, the flow regulation and control of liquid passing through the throttle valve are completed, the dial is sleeved on the outer side of the main rod and is not in contact with the main rod, and the pointer is fixed on the outer side of the main rod through the circular ring sleeve, so that the pointer rotates along with the main rod when the main rod rotates, the rotation angle of the throttle plate can be observed in real time through the cooperation of the dial and the pointer, the circulation speed of liquid in the valve body is known, and the regulation and control are convenient in time.

Description

Throttle valve

Technical Field

The utility model relates to the technical field of valves, in particular to a throttle valve.

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 the one-way throttle valve. The throttle valve and the one-way throttle valve are simple flow control valves, and in a constant displacement pump hydraulic system, the throttle valve and the overflow valve are matched to form three throttle speed regulating systems, namely an oil inlet way throttle speed regulating system, an oil return way throttle speed regulating system and a bypass throttle speed regulating system. The throttle valve has no flow negative feedback function, cannot compensate for unstable speed caused by load change, and is generally only used in occasions with small load change or low requirement on speed stability.

The existing throttle valve can not feed back the passing flow in time, errors in data are easy to cause, secondly, a throttle plate for controlling the flow in the valve body is not provided with any protection, when the flowing-in liquid flow is overlarge, huge water flow impact force directly impacts on the throttle plate, deformation of the throttle plate can be caused, and therefore the capacity of the throttle plate for controlling the flow is affected, and therefore, the throttle valve is urgently needed.

Disclosure of Invention

Based on the above, the utility model aims to provide a throttle valve, which solves the problems that the prior throttle valve cannot feed back the passing flow in time, errors in data are easy to cause, and secondly, a throttle plate for controlling the flow in a valve body is not provided with any protection, when the flow of the injected liquid is overlarge, huge water flow impact force directly impacts on the throttle plate, deformation of the throttle plate is possibly caused, and thus the capacity of the throttle plate for controlling the flow is influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a throttle valve, includes valve body and import, the inside of valve body runs through there is the mobile jib, and the outside integration of mobile jib installs the throttle plate, the outside edge laminating of throttle plate has arc sealed the pad, the top of mobile jib is connected with slow motor, the upper surface welding of valve body has branch, and the top integration of branch is provided with the calibrated scale, the top of calibrated scale is provided with the ring cover, and the outside of ring cover is fixed with the pointer.

The inlet is located the right side of valve body, and the one end outside that the valve body was kept away from to the inlet is fixed with first ring flange, the right side of first ring flange is provided with the second ring flange, and first ring flange and second ring flange edge run through there is the screw, the inside of second ring flange runs through the pipeline.

Preferably, the throttle plates are arranged in a semicircular structure, the throttle plates are symmetrical about the central axis of the main rod, and the arc-shaped sealing gasket is arranged between the inner wall of the valve body and the throttle plates.

Preferably, the upper end and the lower end of the main rod penetrate through the valve body through bearings, and sealing rings encircle the outer sides of the bearings.

Preferably, the dial is arranged in a circular ring structure, the vertical center line of the dial coincides with the vertical center line of the main rod, and the outer surface of the main rod is attached to the inner surface of the circular ring sleeve.

Preferably, the lower surface of the valve body is welded with a bottom pad, and the height of the lower surface of the bottom pad is lower than that of the lower surface of the main rod.

Preferably, the annular plate is integrally arranged on one side of the first flange plate, which is close to the second flange plate, and the annular groove is formed in one side of the second flange plate, which is close to the first flange plate, the rubber ring is attached to the inner wall of the annular groove, and the left end of the valve body is provided with an outlet.

Preferably, the right side of the throttle plate is provided with a force unloading plate in parallel, and a round hole is formed in the force unloading plate.

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

1. according to the utility model, the rotation of the main rod is controlled by the slow motor, so that the angle between the throttle plate and the inner wall of the valve body is changed, the flow regulation and control of liquid passing through the throttle valve are completed, the dial is sleeved on the outer side of the main rod and is not in contact with the main rod, and the pointer is fixed on the outer side of the main rod through the circular ring sleeve, so that when the main rod rotates, the pointer rotates along with the main rod, the rotation angle of the throttle plate can be observed in real time through the cooperation of the dial and the pointer, the flow speed of liquid in the valve body is known, and the regulation and control are convenient in time;

2. according to the utility model, the force unloading plates are arranged on the right side of the throttle plate in parallel, the surfaces of the force unloading plates are provided with the circular holes, and the liquid entering the valve body is scattered through the arrangement of the force unloading plates and the circular holes, so that huge water flow impact force can be prevented from directly striking the throttle plate, the throttle plate is protected, the possibility of deformation of the throttle plate is reduced, and the service life of the device is prolonged;

3. according to the utility model, the inlet part of the valve body is connected with the pipeline through the first flange plate, the second flange plate and the screw, when the first flange plate is attached to the second flange plate, the annular plate is inserted into the annular groove, and the connection tightness of the first flange plate and the second flange plate is enhanced through the mutual matching of the annular plate, the annular groove and the rubber ring.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model;

FIG. 3 is a schematic diagram showing a separation structure of a first flange and a second flange according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.

In the figure: 1. a valve body; 2. a main rod; 3. a throttle plate; 4. an arc-shaped sealing gasket; 5. a bearing; 6. a seal ring; 7. a slow motor; 8. a dial; 9. a support rod; 10. a circular ring sleeve; 11. a pointer; 12. a bottom pad; 13. an inlet; 14. a first flange; 15. a second flange; 16. a pipe; 17. a screw; 18. an annular groove; 19. a rubber ring; 20. an annular plate; 21. an outlet; 22. a force-unloading plate; 23. and a round hole.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.

Referring to fig. 1-4, a throttle valve comprises a valve body 1 and an inlet 13, wherein a main rod 2 is penetrated in the valve body 1, a throttle plate 3 is integrally arranged on the outer side of the main rod 2, an arc-shaped sealing gasket 4 is attached to the outer side edge of the throttle plate 3, the throttle plate 3 is arranged in a semicircular structure, the throttle plates 3 are symmetrical relative to the central axis of the main rod 2, the arc-shaped sealing gasket 4 is arranged between the inner wall of the valve body 1 and the throttle plate 3, the angle of the throttle plate 3 is changed by rotating the main rod 2, so that the flow passing through the inner wall of the valve body 1 is controlled, the arc-shaped sealing gasket 4 is used for enhancing the tightness between the throttle plate 3 and the inner wall of the valve body 1, when the valve body 1 is in a completely closed state, the arc-shaped sealing gasket 4 is completely attached to the inner wall of the valve body 1, the liquid is prevented from passing through the throttle plate 3, the effect of complete flow blocking is achieved, the arc-shaped sealing gasket 4 is not easy to scrape the inner wall of the valve body 1 during rotation, so that damage to the inner wall of the valve body 1 is reduced, the upper end and the lower end of the main rod 2 penetrate through the valve body 1 through the bearing 5, the outer side of the bearing 5 is surrounded by the sealing ring 6, the main rod 2 has mobility, the slow motor 7 is started, the slow motor 7 controls the main rod 2 to slowly rotate, compared with the manual rotation of the main rod 2, the rotation angle is more accurate, the top end of the main rod 2 is connected with the slow motor 7, the upper surface of the valve body 1 is welded with the support rod 9, the top end of the support rod 9 is integrally provided with the dial 8, the ring sleeve 10 is arranged above the dial 8, the pointer 11 is fixed on the outer side of the ring sleeve 10, the dial 8 is in a ring structure, the vertical center line of the dial 8 coincides with the vertical center line of the main rod 2, the outer surface of the main rod 2 is attached to the inner surface of the circular ring sleeve 10, the dial 8 is sleeved on the outer side of the main rod 2 and is not in contact with the main rod 2, the pointer 11 is fixed on the outer side of the main rod 2 through the circular ring sleeve 10, therefore, when the main rod 2 rotates, the pointer 11 rotates along with the main rod, through the cooperation of the dial 8 and the pointer 11, the rotation angle of the throttle plate 3 can be observed in real time, so that the circulation speed of liquid in the valve body 1 is known, the timely adjustment is convenient, the force discharging plate 22 is arranged on the right side of the throttle plate 3 in parallel, the circular hole 23 is formed in the force discharging plate 22, the liquid entering the valve body 1 is scattered through the arrangement of the force discharging plate 22 and the circular hole 23, and huge water flow impact force is prevented from directly striking the throttle plate 3, the throttle plate 3 is prevented from deforming, and the service life of the device is prolonged;

the inlet 13 is located the right side of valve body 1, and the one end outside that the valve body 1 was kept away from to the inlet 13 is fixed with first ring flange 14, the lower surface welding of valve body 1 has the die cushion 12, and the lower surface height of die cushion 12 is less than the lower surface height of mobile jib 2, through the setting of die cushion 12, avoid mobile jib 2 and ground contact, the steady rotation of mobile jib 2 is convenient for, the right side of first ring flange 14 is provided with second ring flange 15, and first ring flange 14 and second ring flange 15 edge run through there is screw 17, the inside of second ring flange 15 runs through pipeline 16, one side that first ring flange 14 is close to second ring flange 15 is provided with annular slab 20 in the integration, and the one side that second ring flange 15 is close to first ring flange 14 has seted up ring channel 18, the inner wall laminating of ring channel 18 has rubber ring 19, the left end of valve body 1 is provided with export 21, when first ring slab 20 inserts 18 inside through first ring flange 14, second ring flange 15 and screw 17 and pipeline 16 are pasted, annular slab 20 is connected with pipeline 16 through first ring slab 15 and ring flange 13, the import part of sealing probability is the same, the import of the equal part of the sealing structure of first ring slab 13 and second ring flange 13 has been reduced.

Working principle: when the rotary pointer device is used, firstly, the two pipelines 16 are respectively connected with the inlet 13 and the outlet 21 of the valve body 1, the outlet 21 part of the valve body 1 is identical to the inlet 13 part in structure, therefore, the outlet 21, the inlet 13 and the pipelines 16 are identical in installation mode, the first flange plate 14 and the second flange plate 15 are attached, the annular plate 20 is inserted into the annular groove 18, the connection tightness of the first flange plate 14 and the second flange plate 15 is enhanced through the mutual matching of the annular plate 20, the annular groove 18 and the rubber ring 19, the first flange plate 14 and the second flange plate 15 are firmly fixed together through the screws 17, liquid enters the valve body 1 through the pipelines 16, firstly flows to the throttle plate 3 through the force unloading plate 22 and passes through the round hole 23, the liquid entering the valve body 1 is scattered through the arrangement of the force unloading plate 22 and the round hole 23, huge water flow impact force is prevented from being directly impacted on the throttle plate 3, then the slow motor 7 is started, the main rod 2 is controlled to slowly rotate, the angle of the throttle plate 3 is changed, the flow pointer 11 inside the valve body 1 is controlled, the pointer 11 is fixed on the outer side of the main rod 2 through the annular sleeve 10, and the pointer 11 rotates along with the main rod 2, the main rod 11 is rotated along with the rotating direction of the main rod 2, the main rod 11 is convenient to rotate the main rod 11, the pointer 11 inside the valve body is convenient to rotate, the current device is convenient to know the internal value, and the internal value is convenient, and the device is in the rotation, and the speed is convenient to rotate, and the speed is in the speed, and the speed is easy to rotate, and has the speed, and has a speed.

What is not described in detail in this specification is prior art known to those skilled in the art.

The terms "center," "longitudinal," "transverse," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used for descriptive simplicity and convenience only and not as an indication or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated for a particular orientation, based on the orientation or positional relationship illustrated in the drawings, and thus should not be construed as limiting the scope of the present utility model.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Throttle valve, comprising a valve body (1) and an inlet (13), characterized in that: the inside of valve body (1) runs through has mobile jib (2), and the outside integration of mobile jib (2) installs throttle plate (3), the outside edge laminating of throttle plate (3) has arc sealed pad (4), the top of mobile jib (2) is connected with slow motor (7), the upper surface welding of valve body (1) has branch (9), and the top integration of branch (9) is provided with calibrated scale (8), the top of calibrated scale (8) is provided with ring cover (10), and the outside of ring cover (10) is fixed with pointer (11);

the inlet (13) is located on the right side of the valve body (1), a first flange plate (14) is fixed on the outer side of one end, far away from the valve body (1), of the inlet (13), a second flange plate (15) is arranged on the right side of the first flange plate (14), screws (17) penetrate through the edges of the first flange plate (14) and the second flange plate (15), and a pipeline (16) penetrates through the inside of the second flange plate (15).

2. A throttle valve as defined in claim 1, wherein: the throttle plate (3) is of a semicircular structure, the throttle plates (3) are symmetrical about the central axis of the main rod (2), and the arc-shaped sealing gasket (4) is arranged between the inner wall of the valve body (1) and the throttle plate (3).

3. A throttle valve as defined in claim 1, wherein: the upper end and the lower end of the main rod (2) penetrate through the valve body (1) through the bearing (5), and a sealing ring (6) surrounds the outer side of the bearing (5).

4. A throttle valve as defined in claim 1, wherein: the dial (8) is of a circular ring structure, the vertical center line of the dial (8) coincides with the vertical center line of the main rod (2), and the outer surface of the main rod (2) is attached to the inner surface of the circular ring sleeve (10).

5. A throttle valve as defined in claim 1, wherein: the lower surface of the valve body (1) is welded with a bottom pad (12), and the lower surface of the bottom pad (12) is lower than the lower surface of the main rod (2).

6. A throttle valve as defined in claim 1, wherein: one side of the first flange plate (14) close to the second flange plate (15) is integrally provided with an annular plate (20), one side of the second flange plate (15) close to the first flange plate (14) is provided with an annular groove (18), the inner wall of the annular groove (18) is attached with a rubber ring (19), and the left end of the valve body (1) is provided with an outlet (21).

7. A throttle valve as defined in claim 1, wherein: the right side of the throttle plate (3) is provided with a force unloading plate (22) in parallel, and a round hole (23) is formed in the force unloading plate (22).