CN215334588U - Throttling speed limiting structure for adjusting valve - Google Patents

Abstract

The utility model discloses a throttling speed-limiting structure for a regulating valve, which belongs to the technical field of regulating valves and comprises a valve body, wherein a first valve port is arranged on the left side inside the valve body, a second valve port is arranged on the right side inside the valve body, an opening and closing piece is arranged between the first valve port and the second valve port in a contact manner, a flow limiting plate is detachably arranged at the bottom of the opening and closing piece, symmetrical flow limiting holes are formed in the plate wall of the flow limiting plate, a sealing plate is fixedly arranged between the two groups of flow limiting holes and positioned on the side wall of the flow limiting plate, a valve rod is rotatably arranged on the upper side of the opening and closing piece, a valve cover is rotatably arranged on the outer side of the rod wall of the valve rod, the valve rod penetrates through the valve cover and extends to the outside, a thread groove is formed in the side wall of the bottom of the valve cover, a sealing ring is rotatably arranged inside the thread groove, the inner wall of the lower side of the sealing ring is attached to the rod wall of the valve rod, and threaded holes are formed in the side wall where the valve body is connected with the valve cover, and a screw is rotatably arranged in the threaded hole.

Description

Throttling speed limiting structure for adjusting valve

Technical Field

The utility model relates to the technical field of regulating valves, in particular to a throttling and speed limiting structure for a regulating valve.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit.

The existing regulating valve has poor regulating progress, thereby causing poor flow limiting effect and generating leakage phenomenon.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a throttling and speed limiting structure for a regulating valve, which aims to solve the problems that the prior regulating valve proposed in the background art has poor regulating progress, so that the flow limiting effect is poor, and a leakage phenomenon can be generated.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a throttling speed-limiting structure for adjusting valve, includes the valve body, the inside left side of valve body is provided with valve port one, the inside right side of valve body is provided with valve port two, the contact is provided with the opening and closing piece between valve port one and the valve port two, the bottom of opening and closing piece dismantled and assembled is provided with the current-limiting plate, symmetrical restricted aperture has been seted up to the siding of current-limiting plate, and is two sets of the lateral wall that just is located the current-limiting plate between the restricted aperture is fixed and is provided with the closing plate, the upside of opening and closing piece is rotated and is provided with the valve rod, the pole wall outside of valve rod is rotated and is provided with the valve gap, the valve rod runs through the valve gap and extends to the outside.

Preferably, a thread groove is formed in the side wall of the bottom of the valve cover, a sealing ring is rotatably arranged inside the thread groove, and the inner wall of the lower side of the sealing ring is attached to the rod wall of the valve rod.

Preferably, threaded holes are formed in the side wall, connected with the valve cover, of the valve body, and screws are arranged inside the threaded holes in a rotating mode.

Preferably, the longitudinal width of the flow restriction plate is larger than the longitudinal widths of the first valve port and the second valve port.

Preferably, the upper end of the valve rod is rotatably provided with a knob.

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

1) the structure of the utility model is simple, firstly, the opening and closing piece is connected with the flow restriction plate, the flow restriction plate can move synchronously through the movement of the opening and closing piece, the flow restriction plate can increase the number of the flow restriction holes according to the movement distance of the opening and closing piece through the matching of the flow restriction holes on the plate wall and the sealing plate, thereby achieving the flow restriction requirements of different flow rates, and the opening and closing piece can be fixed at different positions according to the requirements through the valve rod which is connected in a rotating way;

2) through the current-limiting of layering form, can effectively increase or reduce the velocity of flow according to the distance that the switching piece removed to this can guarantee the current-limiting speed, the restriction that leaks can avoid appearing in the current-limiting in-process in the setting of sealed deckle board simultaneously, has improved the stationarity of velocity of flow.

Drawings

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

fig. 2 is a schematic side view of the restrictor plate of fig. 1.

In the figure: the valve comprises a valve body 1, a first valve port 2, a second valve port 3, a starting and closing piece 4, a flow limiting plate 5, a flow limiting hole 6, a sealing plate 7, a valve rod 8, a valve cover 9, a thread groove 10, a sealing ring 11, a threaded hole 12 and a screw 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-2, the present invention provides a technical solution: a throttling speed limiting structure for a regulating valve comprises a valve body 1, wherein a first valve port 2 is arranged on the left side inside the valve body 1, a second valve port 3 is arranged on the right side inside the valve body 1, an opening and closing part 4 is arranged between the first valve port 2 and the second valve port 3 in a contact manner, the opening and closing of the valve ports can be controlled through the opening and closing part 4, a flow limiting plate 5 is detachably arranged at the bottom of the opening and closing part 4, symmetrical flow limiting holes 6 are formed in the plate wall of the flow limiting plate 5 and can limit the flow rate, a sealing plate 7 is fixedly arranged between two groups of flow limiting holes 6 and on the side wall of the flow limiting plate 5 and can ensure the sealing performance of the flow limiting plate 5 in the flow limiting process, a valve rod 8 is rotatably arranged on the upper side of the opening and closing part 4, a valve cover 9 is rotatably arranged on the outer side of the rod wall of the valve rod 8, and the position of the opening and closing part 4 can be conveniently adjusted through the cooperation of the valve rod 8 and the valve cover 9, the valve rod 8 penetrates the valve cover 9 and extends to the outside.

The bottom side wall of the valve cover 9 is provided with a thread groove 10, the inside of the thread groove 10 is rotatably provided with a sealing ring 11, the lower side inner wall of the sealing ring 11 is attached to the rod wall of the valve rod 8, the sealing effect of connection between the sealing ring and the valve cover is enhanced, the side wall of the valve body 1 connected with the valve cover 9 is provided with a threaded hole 12, the screw hole 12 is rotatably provided with a screw 13, the valve cover 9 is convenient to disassemble and assemble, the flow limiting plate 5 at the bottom of the opening and closing part 4 is replaced, the aperture of the flow limiting hole 6 is adjusted, the longitudinal width of the flow limiting plate 5 is greater than the longitudinal width of the first valve port 2 and the second valve port 3, the sealing performance between the sealing plate 7 and the inner wall of the valve body 1 is ensured, the upper end of the valve rod 8 is rotatably provided with a knob, the valve rod 8 is convenient to rotate, and the valve rod 8 and the valve cover 9 can be conveniently separated.

The working principle is as follows: when the valve body 1 needs to be opened, the valve rod 8 can be conveniently rotated by a knob at the upper end of the valve rod 8, the valve rod 8 can vertically move by matching the valve rod 8 with a thread groove 10 on the side wall of the valve cover 9, so that the opening and closing part 4 in the valve body 1 is driven to move upwards, the flow limiting plate 5 at the bottom synchronously moves upwards while moving, the flow rate of liquid can be limited by the flow limiting holes 6 on the flow limiting plate 5, the sealing frame plate 7 on the side wall of the flow limiting plate 5 is attached to the inner walls of the valve port I2 and the valve port II 3 while rising, so that the liquid can only pass through the flow path of the flow limiting holes 6, meanwhile, the number of the flow limiting holes 6 can be increased only according to the rising distance of the opening and closing part 4 due to the limitation of the flow limiting holes 6 through the sealing plate 7, so that the flow limiting speed of the liquid can be effectively controlled, the valve cover 9 can be separated from the valve body 1 by taking down the screw 13, so that the opening and closing part 4 can be taken out from the valve body 1, the current-limiting plates 5 with different apertures can be replaced according to requirements, so that different current-limiting requirements can be met.

While there have been shown and described the fundamental principles and essential features of the utility model and advantages thereof, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

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

Claims (5)

1. The utility model provides a throttle speed-limiting structure for adjusting valve, includes valve body (1), its characterized in that: the novel valve is characterized in that a first valve port (2) is arranged on the left side of the inside of the valve body (1), a second valve port (3) is arranged on the right side of the inside of the valve body (1), an opening and closing piece (4) is arranged between the first valve port (2) and the second valve port (3) in a contact mode, a flow limiting plate (5) is detachably arranged at the bottom of the opening and closing piece (4), symmetrical flow limiting holes (6) are formed in the plate wall of the flow limiting plate (5), a sealing plate (7) is fixedly arranged between the flow limiting holes (6) and on the side wall of the flow limiting plate (5), a valve rod (8) is arranged on the upper side of the opening and closing piece (4) in a rotating mode, a valve cover (9) is arranged on the outer side of the rod wall of the valve rod (8) in a rotating mode, and the valve rod (8) penetrates through the valve cover (9) and extends to the outside.

2. The throttling speed limiting structure for the adjusting valve according to claim 1, wherein: thread groove (10) have been seted up to the bottom lateral wall of valve gap (9), the inside rotation of thread groove (10) is provided with sealing ring (11), the downside inner wall of sealing ring (11) and the laminating of the pole wall of valve rod (8).

3. The throttling speed limiting structure for the adjusting valve according to claim 1, wherein: threaded holes (12) are formed in the side wall, connected with the valve cover (9), of the valve body (1), and screws (13) are arranged inside the threaded holes (12) in a rotating mode.

4. The throttling speed limiting structure for the adjusting valve according to claim 1, wherein: the longitudinal width of the flow limiting plate (5) is larger than the longitudinal widths of the first valve port (2) and the second valve port (3).

5. The throttling speed limiting structure for the adjusting valve according to claim 1, wherein: the upper end of the valve rod (8) is rotatably provided with a knob.

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