CN219452898U - High-tightness automatic valve body - Google Patents

Abstract

The utility model discloses a high-tightness automatic valve body, which comprises a main valve body, wherein a first pipe orifice, a second pipe orifice, a circulation cavity and an outer cylinder are arranged on the main valve body, an inner cylinder is fixedly connected in the outer cylinder, a positioning sleeve is fixedly arranged in the inner cylinder, a screw rod is rotationally connected to the positioning sleeve, a threaded sleeve is connected to the screw rod, a gasket is fixedly arranged on the inner wall, close to the circulation cavity, of the outer cylinder, the threaded sleeve is movably arranged in the gasket, one end of the threaded sleeve is fixedly connected with a sliding sleeve, two sides of the sliding sleeve are connected with sliding blocks, sliding grooves matched with the sliding blocks are arranged on two side walls of the circulation cavity, one end of the sliding sleeve is fixedly provided with a conical plug matched with the second channel, a first sealing ring is arranged on a conical surface of the plug, and a driving mechanism for driving the screw rod to rotate is arranged in the inner cylinder. The driving screw rod rotates to drive the plug to move towards the second channel, and the first sealing ring is plugged on the second channel, so that the valve body is closed.

Description

High-tightness automatic valve body

Technical Field

The utility model relates to the technical field of valves, in particular to a high-tightness automatic valve body.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling the flow direction, adjusting and controlling the parameters of a conveying medium, and has the functions of diversion, cut-off, throttling, non-return, diversion or overflow pressure relief and the like.

At present, manual and automatic valves are mainly arranged in the market, and each time the manual valve needs to be opened and closed manually, the automatic valve does not need manual operation, so that time and labor are saved. However, the current automatic valve has the following problems: (1) The electromagnetic cylinder is controlled to extend to drive the piston to move in the valve body to seal the pipe orifice, and because the cylinder has a certain stroke, if the cylinder is arranged in the valve body, the length of the valve body is increased, and if the cylinder is arranged outside the valve body, the cylinder is easily damaged due to exposure, and the service life of the valve body is influenced; (2) The tightness is poor, and after long-time use, liquid is easy to leak and even enters a control area for controlling the opening and closing of the valve, so that the control part is damaged.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a high-tightness automatic valve body to solve the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides an automatic valve body of high leakproofness, includes the main valve body, the upper portion of main valve body is equipped with first mouth of pipe, and the one end of main valve body is equipped with the second mouth of pipe, be equipped with the circulation chamber in the main valve body, first mouth of pipe and circulation chamber pass through first passageway intercommunication, the second mouth of pipe and circulation chamber pass through second passageway intercommunication, the one end of keeping away from the second mouth of pipe in the main valve body is equipped with the urceolus, fixedly connected with inner tube in the urceolus, fixedly connected with locating sleeve in the inner tube, rotate the connecting screw through the bearing in the locating sleeve, threaded connection has the swivel nut on the screw, the inner wall that is close to the circulation chamber in the urceolus is fixed with the packing ring, the swivel nut activity sets up in the packing ring, the one end fixedly connected with sliding sleeve of swivel nut, the sliding sleeve is located the circulation chamber, the both sides of sliding sleeve are connected with the slider, the both sides wall of circulation chamber is equipped with the spout with slider complex, the sliding sleeve passes through slider sliding connection in the spout, the one end is fixed with be toper and with second passageway complex shutoff, be equipped with the round first in the face of the cone, be equipped with in the sealing ring in the second passageway, drive mechanism is still equipped with the sealing ring in the second passageway after the swivel nut is driven to the second passageway, the shutoff screw can be in the second passageway through the second passageway, drive the shutoff screw to the second.

According to the technical scheme, the screw is driven to rotate, as the threaded sleeve is in threaded connection with the screw, the sliding sleeve is fixed on the threaded sleeve, and the sliding sleeve is in sliding connection with the sliding groove of the control cavity through the sliding block, the threaded sleeve can be driven to move along the screw in the rotating process of the screw until the screw is blocked and plugged on the second channel, so that the communication between the first pipe orifice and the second pipe orifice is prevented, and the valve body is closed. The gasket is arranged on the periphery of the threaded sleeve, the threaded sleeve is attached to the gasket no matter the valve body is in an open state or a closed state, liquid can be prevented from entering the control cavity, and when the valve body is in the closed state, the first sealing ring on the plug is tightly attached to the second channel, so that the second channel can be completely closed, and leakage is prevented.

Preferably, the inner wall of the inner cylinder is further fixed with a collar and a convex ring in sequence, the collar is abutted against the gasket, and the convex ring is abutted between the collar and the inner cylinder.

Preferably, a circle of second sealing ring is arranged on the inner wall of the lantern ring close to the gasket.

According to the technical scheme, the second sealing ring is arranged on the lantern ring, so that liquid is further prevented from entering the control cavity.

Preferably, the driving mechanism is a motor arranged in the inner cylinder, and the motor is in transmission connection with one end of the screw rod through a coupler.

Preferably, an end cover is buckled at the end part of the outer cylinder.

According to the technical scheme, the motor can be protected through the end cover.

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

the driving screw rod rotates, and the screw sleeve can be driven to move along the screw rod in the screw rod rotation process until the blocking plug is plugged on the second channel, so that the communication between the first pipe orifice and the second pipe orifice is prevented, and the valve body is closed.

The driving screw rod rotates to push the plug, the cylinder does not need to extend and push, the length of the main valve body increased by the stroke of the cylinder is reduced, and the driving mechanism and the screw rod are arranged in the main valve body, so that the driving mechanism can be prevented from being damaged due to exposure.

The periphery of the screw sleeve is provided with the gasket, the screw sleeve is attached to the gasket no matter the valve body is in an open state or a closed state, liquid can be prevented from entering the control cavity, and when the valve body is in the closed state, the first sealing ring on the plug is tightly attached to the second channel, so that the second channel can be completely closed, and leakage is prevented.

Drawings

FIG. 1 is a schematic view of the present utility model in an open state;

FIG. 2 is a schematic view of the present utility model in a closed state;

FIG. 3 is a schematic view of a screw sleeve, plug and slide;

in the figure: 1-main valve body, 2-first mouth of pipe, 3-second mouth of pipe, 4-circulation chamber, 5-first passageway, 6-second passageway, 7-urceolus, 8-inner tube, 9-spacer sleeve, 10-screw rod, 11-swivel nut, 12-packing ring, 13-sliding sleeve, 14-slider, 15-spout, 16-jam, 17-first sealing ring, 18-lantern ring, 19-bulge loop, 20-second sealing ring, 21-motor, 22-end cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a high-tightness automatic valve body comprises a main valve body 1, wherein a first pipe orifice 2 is arranged at the upper part of the main valve body 1, a second pipe orifice 3 is arranged at one end of the main valve body 1, a circulation cavity 4 is arranged in the main valve body 1, the first pipe orifice 2 is communicated with the circulation cavity 4 through a first channel 5, and the second pipe orifice 3 is communicated with the circulation cavity 4 through a second channel 6.

An outer cylinder 7 is arranged at one end, far away from the second pipe orifice 3, of the main valve body 1, an inner cylinder 8 is fixedly connected in the outer cylinder 7, a positioning sleeve 9 is fixedly connected in the inner cylinder 8, a screw rod 10 is connected in the positioning sleeve 9 through bearing rotation, a threaded sleeve 11 is connected on the screw rod 10, a gasket 12, a collar 18 and a convex ring 19 are fixed on the inner wall, close to the circulation cavity 4, of the outer cylinder 7, the collar 18 is abutted against the gasket 12, the convex ring 19 is abutted against between the collar 18 and the inner cylinder 8, the threaded sleeve 11 is movably arranged in the gasket 12, the collar 18 and the convex ring 19, a circle of second sealing ring 20 is arranged on the inner wall, close to the gasket 12, of the collar 18, and the liquid is prevented from entering the inner cylinder through the dual functions of the gasket 12 and the second sealing ring 20, so that the motor is prevented from being damaged; one end fixedly connected with sliding sleeve 13 of swivel nut 11, sliding sleeve 13 is located circulation chamber 4, the both sides of sliding sleeve 13 are connected with slider 14, the both sides wall of circulation chamber 4 is equipped with slider 14 complex spout 15, sliding sleeve 13 passes through slider 14 sliding connection in spout 15, the one end of sliding sleeve 13 is fixed with and is toper and with second passageway 6 complex jam 16, be equipped with round first sealing ring 17 on the vertebral surface of jam 16, be equipped with drive screw 10 pivoted actuating mechanism in the inner tube 8.

Specifically, the driving mechanism is a motor 21 arranged in the inner cylinder 8, the motor 21 is in transmission connection with one end of the screw 10 through a coupler, an end cover 22 is buckled at the end part of the outer cylinder 7, and the motor 21 is sealed in the inner cylinder by the end cover 22. The screw rod 10 is driven to rotate through the operation of the motor, the plug 16 can be driven to move towards the second channel 6, the first sealing ring 17 is blocked on the second channel 6, and after the first sealing ring 17 is blocked on the second channel 6, the screw sleeve 11 is still stuck in the gasket 12, so that liquid is prevented from entering the inner cylinder 8.

The working principle of the utility model is as follows:

the control motor 21 works to drive the screw rod 10 to rotate, the screw sleeve 11 is in threaded connection with the screw rod 10, the sliding sleeve 13 is fixed on the screw sleeve 11, and the sliding sleeve 13 is in sliding connection with the sliding groove 15 of the control cavity 4 through the sliding block 14, so that the screw rod 10 can drive the screw sleeve 11 to move along the screw rod 10 in the rotating process until the plug 16 is plugged on the second channel 6, the communication between the first pipe orifice 2 and the second pipe orifice 3 is prevented, the effect of closing the valve body is achieved, and when the valve body needs to be opened, only the motor 21 is controlled to rotate reversely to drive the plug 16 to leave the second channel 6, so that the communication between the first pipe orifice 2 and the second pipe orifice 3 is realized.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 high leakproofness automatic valve body, its characterized in that, including main valve body (1), the upper portion of main valve body (1) is equipped with first mouth of pipe (2), and the one end of main valve body (1) is equipped with second mouth of pipe (3), is equipped with circulation chamber (4) in main valve body (1), first mouth of pipe (2) and circulation chamber (4) are through first passageway (5) intercommunication, second mouth of pipe (3) and circulation chamber (4) are through second passageway (6) intercommunication, the one end of keeping away from second mouth of pipe (3) in main valve body (1) is equipped with urceolus (7), urceolus (7) internal fixation has inner tube (8), be connected with spacer sleeve (9) in inner tube (8), be connected with screw rod (10) through the bearing rotation in spacer sleeve (9), threaded connection has swivel nut (11) on screw rod (10), the inner wall that is close to circulation chamber (4) in urceolus (7) is fixed with packing ring (12), swivel nut (11) activity sets up in swivel nut (12), swivel nut (11) are connected with slider (13) in the swivel nut (13), the two side walls of the circulation cavity (4) are provided with sliding grooves (15) matched with the sliding blocks (14), the sliding sleeve (13) is connected in the sliding grooves (15) in a sliding mode through the sliding blocks (14), one end of the sliding sleeve (13) is fixedly provided with a plug (16) which is conical and matched with the second channel (6), a circle of first sealing ring (17) is arranged on the conical surface of the plug (16), a driving mechanism for driving the screw (10) to rotate is arranged in the inner cylinder (8), the plug (16) can be driven to move towards the second channel (6) through the rotation of the driving screw (10), the first sealing ring (17) is blocked on the second channel (6), and after the first sealing ring (17) is blocked on the second channel (6), the screw sleeve (11) is still attached in the gasket (12).

2. The high tightness automatic valve body according to claim 1, characterized in that: the inner wall of the inner cylinder (8) is further fixedly provided with a collar (18) and a convex ring (19) in sequence, the collar (18) is abutted against the gasket (12), and the convex ring (19) is abutted between the collar (18) and the inner cylinder (8).

3. The high tightness automatic valve body according to claim 2, characterized in that: a circle of second sealing ring (20) is arranged on the inner wall of the lantern ring (18) close to the gasket (12).

4. A high tightness automatic valve body according to claim 3, characterized in that: the driving mechanism is a motor (21) arranged in the inner cylinder (8), and the motor (21) is in transmission connection with one end of the screw rod (10) through a coupler.

5. The high tightness automatic valve body according to any of claims 1-4, wherein: an end cover (22) is buckled at the end part of the outer cylinder (7).