Pressure regulating valve

Abstract

The utility model discloses a pressure regulating valve which comprises a valve body, a valve rod and a hand wheel, a fixing disc is fixedly connected to the valve rod, positioning rods are inserted into the four sides, away from each other, of the fixing disc, a connecting sleeve is connected to the positioning rods in a threaded mode, a sliding ball is rotationally embedded into the bottom side of the connecting sleeve and makes contact with the upper side of the valve body, and a connecting disc is fixedly connected to the upper side of the valve body. Supporting balls are rotationally embedded in the four sides, away from each other, of the upper end of the connecting disc, the upper sides of the supporting balls make contact with an annular filter screen, pressing rods are arranged on the upper side of the annular filter screen and fixedly connected to the four sides of the bottom end of the fixing disc, and the bottom ends of the pressing rods are sleeved with fixing sleeves which are fixedly connected to the four sides of the upper end of the annular filter screen; the fixing disc is arranged at the connecting position of the valve body and the valve rod to be matched with the connecting sleeve, then the connecting disc and the annular filter screen are arranged in the connecting sleeve, environmental dust can be shielded, the problem that the valve body is affected by dust due to exposure is solved, meanwhile, the extension rod is arranged, the force arm of the hand wheel is increased, and the rotating effect of the valve can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure regulating valve technical field, concretely relates to a pressure regulating valve. BACKGROUND

[0002] The pressure regulating valve is a kind of pipeline seal, it is mainly realized the sealing and pressure regulating between the pipe fitting on the two sides of valve flange by valve stem and valve plate, then the connecting place of valve stem and shell is sealed with seal, and the pressure is adjusted in the mode of rotating hand wheel, to realize the flow rate of fluid medium.

[0003] According to the "a pressure regulating valve" of Chinese patent publication No. CN222142023U, it mainly described is by: in use, according to the demand of pressure regulating, the aperture of the through hole is selected corresponding to the baffle, then the rotating disc is rotated to drive the baffle and the lifting hole, then the cylinder pushes the baffle to drop into the valve body, and the through hole on the baffle is located at the center of the passageway of the valve body, so that the fluid flows through the through hole in the center, to avoid causing the pressure to be not uniform when fluid flows, and to affect the use of the whole equipment.

[0004] The pressure regulating valve needs to rotate hand wheel when regulating the flow rate of fluid medium, and drives valve stem and valve plate to rotate, however, in some cases, the valve is exposed to the environment and is affected by dust in the environment, causing rotation to be sluggish, resulting in poor pressure regulating effect.

[0005] Therefore, a pressure regulating valve is proposed to solve the problem that the valve is exposed to the environment and is affected by dust in the environment, causing the valve stem to rotate and be sluggish, resulting in poor pressure regulating effect. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem that the valve is exposed to the environment and is affected by dust in the environment, causing the valve stem to rotate and be sluggish, resulting in poor pressure regulating effect, therefore a pressure regulating valve is proposed.

[0007] The technical scheme adopted by the utility model to solve the technical problem is: a pressure regulating valve, including valve body, valve stem and hand wheel, the valve stem is fixedly connected with fixed disc, the four sides of the fixed disc away from each other are inserted with positioning rod, the positioning rod is threadedly connected with adapter sleeve, the adapter sleeve bottom side is rotatably embedded with sliding ball, the sliding ball contacts the upper side of the valve body, the upper side of the valve body is fixedly connected with adapter disc, the four sides of the upper end of the adapter disc away from each other are rotatably embedded with support ball, the upper side of the support ball is in contact with annular filter screen, the upper side of the annular filter screen is provided with pressure rod, and the pressure rod is fixedly connected to the bottom end of the four sides of the fixed disc.

[0008] As a preferred technical scheme of the utility model, the fixed sleeve is fixedly connected to the upper end of the annular filter screen, and the fixed sleeve is fixedly connected to the four sides of the upper end of the annular filter screen, so that the annular filter screen can be limited through the fixed sleeve and the pressing rod.

[0009] As a preferred technical scheme of the utility model, the limiting groove is arranged on the hand wheel, the extending rod is rotatably connected to the limiting groove through the rotating shaft, and the extending rod can increase the force arm of the hand wheel, thereby facilitating rotation of the hand wheel.

[0010] As a preferred technical scheme of the utility model, the extending rod is arranged on one side of the limiting rod, and the limiting rod is inserted into the hand wheel, so that the limiting rod can limit the extending rod when the extending rod is not used.

[0011] As a preferred technical scheme of the utility model, the spring telescopic rod is fixedly connected to one side in the limiting groove, and the end of the spring telescopic rod is in contact with the extending rod, so that the spring telescopic rod can ensure that the extending rod is automatically popped out.

[0012] The utility model has the following advantages: the fixed disc and the connecting sleeve are arranged at the joint of the valve body and the valve rod, the connecting disc and the annular filter screen are arranged in the connecting sleeve, the environment dust is blocked, the problem that the valve body is exposed to the dust is reduced, the force arm of the hand wheel is increased through the extending rod, and the rotation effect of the valve is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a side view structure schematic diagram of a pressure regulating valve of a preferred embodiment of the utility model;

[0014] Fig. 2 is a three-dimensional structure schematic diagram of a hand wheel of a pressure regulating valve of a preferred embodiment of the utility model;

[0015] Fig. 3 is a three-dimensional sectional structure schematic diagram of a connecting sleeve of a pressure regulating valve of a preferred embodiment of the utility model.

[0016] Mark 1, valve body; 2, valve rod; 3, fixed disc; 4, positioning rod; 5, connecting sleeve; 6, sliding ball; 7, connecting disc; 8, supporting ball; 9, annular filter screen; 10, pressing rod; 11, fixed sleeve; 12, hand wheel; 13, limiting groove; 14, rotating shaft; 15, extending rod; 16, limiting rod; 17, spring telescopic rod. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with the drawings.

[0018] Please refer to Figs. 1-3The pressure regulating valve shown comprises a valve body 1, a valve rod 2, and a hand wheel 12, the valve rod 2 is fixedly connected with a fixed disc 3, the four sides of the fixed disc 3 are inserted with positioning rods 4 away from each other, the fixed disc 3 can be disassembled with a connecting sleeve 5 by disassembling the positioning rods 4, the connecting sleeve 5 is threadedly connected with the positioning rods 4, the connecting sleeve 5 is rotatably embedded with a sliding ball 6 at the bottom side, the sliding ball 6 is in contact with the upper side of the valve body 1, the sliding ball 6 is arranged to reduce the friction between the connecting sleeve 5 and the valve body 1, the upper side of the valve body 1 is fixedly connected with a connecting disc 7, the upper end of the connecting disc 7 is rotatably embedded with support balls 8 away from each other at the four sides, the upper side of the support balls 8 is in contact with an annular filter screen 9, the annular filter screen 9 can prevent dust from entering the gap between the valve rod 2 and the valve body 1, a pressing rod 10 is arranged at the upper side of the annular filter screen 9, and the pressing rod 10 is fixedly connected at the four sides of the bottom end of the fixed disc 3, the pressing rod 10 is arranged to provide limiting for the annular filter screen 9.

[0019] The bottom end of the pressing rod 10 is sleeved with a fixed sleeve 11, the fixed sleeve 11 is fixedly connected at the four sides of the upper end of the annular filter screen 9, the fixed sleeve 11 is arranged to connect the pressing rod 10, so that the annular filter screen 9 can be stably limited.

[0020] The hand wheel 12 is provided with a limiting slot 13, the limiting slot 13 is rotatably connected with an extension rod 15 through a rotating shaft 14, the extension rod 15 is arranged to increase the torque of the hand wheel 12, facilitate rotation of the hand wheel 12, and reduce the contact points of dust adhering to the valve rod 2 and the valve body 1.

[0021] The extension rod 15 is in contact with a limiting rod 16 at one side, the limiting rod 16 is inserted into the hand wheel 12, the limiting rod 16 is arranged to limit the extension rod 15 when the extension rod 15 is not used, and the limiting slot 13 cooperates with the limiting rod 16 to provide limiting for the extension rod 15.

[0022] The limiting slot 13 is fixedly connected with a spring telescopic rod 17 at one side, the end of the spring telescopic rod 17 is in contact with the extension rod 15, the spring telescopic rod 17 is arranged to automatically expand the extension rod 15 when the limiting rod 16 is disassembled.

[0023] Working principle: when the valve body 1 is idle, the fixed disc 3 and the connecting sleeve 5 are arranged to reduce dust entering the connecting position of the valve body 1 and the valve rod 2, so that the valve rod 2 rotates slowly, at the same time, the annular filter screen 9 is arranged to block dust from entering the connecting sleeve 5, when the valve body 1 needs to adjust the flow rate of fluid medium, the limiting rod 16 can be disassembled, the extension rod 15 is automatically expanded under the action of the spring telescopic rod 17, at this time, rotating the extension rod 15 can increase the rotating arm of the hand wheel 12, so as to improve the rotating convenience.

[0024] The above is only the preferred embodiment of the present application, it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be regarded as the protection scope of the present application.

[0025] The other parts not described in detail in the utility model all belong to the prior art, so they are not described here.

[0026] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A pressure regulating valve, comprising a valve body (1), a valve stem (2), and a handwheel (12), characterized in that, A fixed plate (3) is fixedly connected to the valve stem (2). A positioning rod (4) is inserted into each of the four mutually distant sides of the fixed plate (3). A connecting sleeve (5) is threaded onto the positioning rod (4). A sliding ball (6) is rotatably embedded on the bottom side of the connecting sleeve (5). The sliding ball (6) contacts the upper side of the valve body (1). A connecting plate (7) is fixedly connected to the upper side of the valve body (1). A support ball (8) is rotatably embedded on each of the four mutually distant sides of the upper end of the connecting plate (7). An annular filter screen (9) is in contact with the upper side of the support ball (8). A pressure rod (10) is provided on the upper side of the annular filter screen (9), and the pressure rod (10) is fixedly connected to the four sides of the bottom end of the fixed plate (3).

2. A pressure regulating valve as described in claim 1, characterized in that, The bottom end of the pressure rod (10) is fitted with a fixing sleeve (11), which is fixedly connected to the four sides of the upper end of the annular filter screen (9).

3. A pressure regulating valve as described in claim 1, characterized in that, The handwheel (12) has a limiting groove (13), and the limiting groove (13) is rotatably connected to an extension rod (15) via a rotating shaft (14).

4. A pressure regulating valve as described in claim 3, characterized in that, The extension rod (15) contacts a limiting rod (16) on one side, and the limiting rod (16) is inserted into the handwheel (12).

5. A pressure regulating valve as described in claim 4, characterized in that, A spring telescopic rod (17) is fixedly connected to one side of the limiting groove (13), and the end of the spring telescopic rod (17) is in contact with the extension rod (15).

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