Bearingless cock shunt valve

Abstract

The utility model discloses a bearing-free cock shunt valve which comprises a two-way valve body, a valve element is rotationally arranged in the two-way valve body, mounting holes are correspondingly formed in the left side and the right side of the two-way valve body, the mounting holes are detachably connected with end covers, and valve element check rings and combined seals are arranged between the end covers and the two-way valve body. One end of the combined seal makes contact with the valve element and is made of macromolecule self-lubricating materials, a rotary actuator is detachably connected to the end cover, and the rotary actuator is connected with the valve element through a connecting shaft. A bearing is omitted, the combined seal is in contact with the valve element through a macromolecule self-lubricating material so as to play a role of the bearing, the number of parts is reduced, and the problem that normal work of equipment is affected due to the fact that the bearing is prone to being clamped by the material is solved. And on the other hand, the open type end cover is adopted, problems can be found and processed in time after sealing fails, and switching work can still be completed under the condition that faults occur.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of shunt valve, especially, relate to a bearingless plug shunt valve. BACKGROUND

[0002] In the pneumatic conveying system, the shunt valve is a kind of key assembly, and its core function is to control material flow, optimize the flexibility and efficiency of system. The material conveyed by the shunt valve is basically the mixture of compressed gas and solid powder or granular material, and the working condition is relatively harsh. The shunt valve needs relatively precise cooperation to play the sealing function. The shunt valve of the prior art is provided with plastic seal and bearing. After long time working, the plastic seal is abraded by material, so that the bearing is easily blocked after material enters, which causes the equipment to be unable to work normally, and affects the normal operation of the whole conveying system.

[0003] Therefore, how to solve the defects of the prior art has become the direction of efforts of the technical personnel in the field. INVENTION CONTENTS

[0004] The utility model aims at providing a bearingless plug shunt valve, which can completely solve the above-mentioned deficiencies of the prior art.

[0005] The utility model achieves the purpose by the following technical scheme:

[0006] A bearingless plug shunt valve, comprising a two-way valve body, a valve core is rotatably arranged in the two-way valve body, installation holes are formed on the left and right sides of the two-way valve body, an end cover is detachably connected to the installation holes, a valve core retainer ring and a combined seal are arranged between the end cover and the two-way valve body, one end of the combined seal is in contact with the valve core, and the end is made of high-molecular self-lubricating material, a rotary actuator is detachably connected to the end cover, and the rotary actuator is connected to the valve core through a connecting shaft.

[0007] Further, the two-way valve body is provided with a feeding port and a discharging port in the direction perpendicular to the installation hole.

[0008] Further, the two-way valve body is provided with a bypass discharging port on the top.

[0009] Further, the combined seal comprises an O-shaped ring and a sealing body, the sealing body made of high-molecular self-lubricating material is fixedly arranged in the O-shaped ring, the sealing body has a central hole, a rotating body support surface is formed on the inner wall of the central hole, and sealing lips are symmetrically arranged on both sides of the rotating body support surface.

[0010] Further, first recesses are symmetrically arranged on the two side walls of the sealing body, second recesses are symmetrically arranged on both sides of the rotating body support surface, and the sealing lips are formed between the first recesses and the second recesses.

[0011] Compared with the prior art, the utility model discloses the beneficial effect lies in: simple structure, reasonable in design have cancelled the bearing, and the combination seal is contacted with the valve core through the high polymer self -lubricating material and thus plays the bearing function, not only reduces the part quantity, and solves the problem that bearing is easily deadlocked by material and influences normal work of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the perspective view of the utility model;

[0013] Figure 2 It is the front view of the utility model;

[0014] Figure 3 It is Figure 2 A-A section view in it;

[0015] Figure 4 It is the section view of bypass outlet opening state;

[0016] Figure 5 It is the explosion drawing of the utility model;

[0017] Figure 6 It is the installation position schematic drawing of combination seal;

[0018] Figure 7 It is Figure 6 The local enlarged view of B in it. DETAILED DESCRIPTION

[0019] Exemplary embodiments of the present disclosure will be described below in greater detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0020] As Figures 1 to 7 shown, a bearingless plug bypass valve, including two-way valve body 1, in two-way valve body 1 rotationally arranged with valve core 2, the two-way valve body 1 left and right sides correspond to set up mounting hole, in mounting hole detachably connects end cover 3, between end cover 3 and two-way valve body 1 is provided with valve core baffle ring 4 and combination seal 5, one end of combination seal 5 is in contact with valve core 2, and the end is high molecular self-lubricating material, detachably connected with rotary actuator 6 on end cover 3, rotary actuator 6 is connected with valve core 2 through connecting shaft 7.The combination seal 5 plays the role of supporting valve core 2 while ensuring sealing.The valve core baffle ring 4 is arranged between end cover 3 and valve core 2 end face.

[0021] In this embodiment, the two-way valve body 1 is provided with an inlet 8 and an outlet 9 in a direction perpendicular to the mounting hole. The top of the two-way valve body 1 is provided with a bypass outlet 10.

[0022] The combined seal 5 includes an O-ring 51 and a sealing body 52. ​​The sealing body 52, made of a self-lubricating polymer material, is fixed inside the O-ring 51. The sealing body 52 has a central hole, and the inner wall of the central hole forms a rotating support surface 53. Sealing lips 54 are symmetrically arranged on both sides of the rotating support surface 53. The central hole of the sealing body 52 mates with the valve core 2, and the rotating support surface 53 provides support for the valve core 2 and performs a sealing function. The sealing body 52 uses a self-lubricating polymer material, requiring no additional lubricating oil. Damage to it does not affect the normal operation of the equipment. The O-ring 51 enhances the radial sealing compensation, providing continuous compensation, stable performance, and extending the seal's service life.

[0023] Specifically, the sealing body 52 has symmetrically arranged first recesses 55 on both sides of its sidewalls, and the rotating body support surface 53 has symmetrically arranged second recesses 56 on both sides, forming an outwardly protruding sealing lip 54 between the first recesses 55 and the second recesses 56. This structural design creates a symmetrical structure, eliminating the need to distinguish between the inside and outside during installation, thus reducing installation difficulty.

[0024] During operation, materials and high-pressure gas enter the two-way valve body 1 through the feed port 8 and are output from the discharge port 9. When it is necessary to switch the material direction, the rotary actuator 6 drives the valve core 2 to rotate a certain angle through the connecting shaft 7, so that the straight passage is closed and the material is output from the bypass discharge port 10.

[0025] This utility model's branch valve eliminates the bearing; the combined seal 5, through contact with the valve core using a high-polymer self-lubricating material, functions as a bearing. This not only reduces the number of parts but also solves the problem of bearings being easily jammed by materials, affecting normal equipment operation. Furthermore, the use of an open end cap allows for timely detection and handling of seal failures, and enables switching operations to continue even in the event of a malfunction.

[0026] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspect lies in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0027] Those skilled in the art will understand that modules in the device of the embodiments can be adaptively changed and placed in one or more devices different from that embodiment. Modules, units, or components in the embodiments can be combined into a single module, unit, or component, and further, they can be divided into multiple sub-modules, sub-units, or sub-components. Except where at least some of such features and / or processes or units are mutually exclusive, any combination can be used to combine all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or device so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that serves the same, equivalent, or similar purpose.

[0028] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of this invention and form different embodiments.

[0029] It should be noted that the above embodiments are illustrative of the present invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearingless plug tap manifold valve comprising a two-way valve body in which a valve plug is rotatably disposed, characterized by: The two-way valve body is provided with mounting holes on the left and right sides, end covers are detachably connected to the mounting holes, a valve core retainer ring and a combined seal are arranged between the end covers and the two-way valve body, one end of the combined seal is in contact with the valve core, and the end is made of a high polymer self-lubricating material, a rotary actuator is detachably connected to the end cover, and the rotary actuator is connected with the valve core through a connecting shaft.

2. The bearingless plug tap manifold valve of claim 1, wherein: The two-way valve body is provided with a feeding port and a discharging port in the direction perpendicular to the mounting holes.

3. The bearingless plug tap manifold valve of claim 2, wherein: The two-way valve body is provided with a bypass discharging port on the top.

4. The bearingless plug tap manifold valve of claim 1, wherein: The combined seal comprises an O-shaped ring and a sealing body, the sealing body is made of a high polymer self-lubricating material and is fixedly arranged in the O-shaped ring, the sealing body has a central hole, a rotating body support surface is formed on the inner wall of the central hole, and sealing lips are symmetrically arranged on the two sides of the rotating body support surface.

5. The bearingless plug tap manifold valve of claim 4, wherein: First recesses are symmetrically arranged on the two side walls of the sealing body, second recesses are symmetrically arranged on the two sides of the rotating body support surface, and the sealing lips are outwardly convex between the first recesses and the second recesses.

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