Multi-channel quick-release reversing valve

Abstract

The utility model discloses a multi-channel quick-release reversing valve which comprises a shell, a valve core is arranged in the shell, the shell is formed by splicing an upper valve body shell and a lower valve body shell, and the splicing position of the upper valve body shell and the lower valve body shell is connected and fastened through a quick-release clamp; an upper seal is arranged between the valve body upper shell and the valve element, open holes are formed in the top of the valve body upper shell, the top of the upper seal and the top of the valve element, and the open holes of the valve body upper shell, the upper seal and the valve element are communicated; a lower seal is arranged between the valve body lower shell and the valve element, two or more open holes are formed in each of the valve body lower shell and the lower seal, the number and the positions of the open holes in the valve body lower shell correspond to those of the open holes in the lower seal, open holes are formed in the side face of the valve element, and the open holes in the side face of the valve element are communicated with any open hole in the valve body lower shell by rotating the valve element. According to the utility model, the channel can be quickly replaced in the powder conveying process, the valve body can be quickly detached and cleaned, and the valve is suitable for conveying and controlling powder materials in the medicine and food industries, and can provide reliable sealing performance and operating characteristics.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a multi-channel quick-release reversing valve. Background Art

[0002] The reversing valve is a valve that realizes the communication, cutting and reversing of materials, as well as pressure unloading and sequential action control by the relative movement of the valve core and the valve body. It is divided into two-way, three-way, four-way, etc. according to the number of channels connected to the valve body. The ways to operate the valve core movement include manual, motorized, electric, hydraulic, electro-hydraulic, etc.

[0003] In the prior art, the switching object of the reversing valve is mainly liquid, which makes it easy for powder materials in the pharmaceutical and food industries to be blocked during transportation. The existing valve body is basically fixed with bolts, and cannot be quickly disassembled when clearing the blockage, making it difficult to clean the inside of the valve body. In addition, due to the high delivery pressure of the liquid, the shell of the reversing valve is relatively thick and the weight of the valve body is large, which makes it inconvenient to transport and use. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a multi-channel quick-release reversing valve.

[0005] The utility model is realized by adopting the following technical solutions.

[0006] A multi-channel quick-release reversing valve comprises a shell, in which a valve core is arranged, the shell is composed of a valve body upper shell and a valve body lower shell, and the joint of the valve body upper shell and the valve body lower shell is fastened by a quick-release clamp; an upper seal is arranged between the valve body upper shell and the valve core, and openings are formed in the valve body upper shell, the upper seal and the top of the valve core, and the openings of the three are connected; a lower seal is arranged between the valve body lower shell and the valve core, and two or more openings are arranged on the valve body lower shell and the lower seal, and the number and positions of the openings on the valve body lower shell and the lower seal correspond, and an opening is arranged on the side of the valve core, and by rotating the valve core, the opening on the side of the valve core is connected with any opening on the valve body lower shell.

[0007] Furthermore, the valve core is connected to an actuator.

[0008] Furthermore, the actuator penetrates the lower shell of the valve body and the lower seal and is connected to the bottom of the valve core.

[0009] Furthermore, the openings on the lower shell of the valve body are all connected to the discharge pipe.

[0010] Preferably, three openings are arranged on the lower shell of the valve body.

[0011] The utility model obtains the following beneficial effects.

[0012] (1) The reversing valve of the utility model adopts a quick-disassembly design, which is simple and convenient to maintain and clean;

[0013] (2) The reversing valve of the utility model adopts a low-pressure design, which saves materials and is light in weight;

[0014] (3) The housing and seal of the reversing valve of the utility model can be flexibly replaced to adapt to different numbers of channels;

[0015] (4) The valve core of the reversing valve of the utility model rotates along the axial direction, has a small volume, and saves space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the shell part of the utility model.

[0018] Among them, 1. valve body upper shell; 2. upper seal; 3. quick-release clamp; 4. valve body lower shell; 5. valve core; 6. lower seal; 7. actuator; 8. first discharge pipe; 9. second discharge pipe; 10. third discharge pipe. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] like Figure 1 , 2 As shown, a multi-channel quick-release reversing valve includes a housing, a valve core 5 and an actuator 7.

[0021] The shell is sleeved outside the valve core 5, and the shell includes a valve body upper shell 1 and a valve body lower shell 4. The valve body upper shell 1 and the valve body lower shell 4 are connected by a quick-release clamp 3, and the quick-release clamp 3 can quickly disassemble and install the valve body; the valve body upper shell 1 is provided with an opening for material entry and exit, and the valve body lower shell 4 is provided with two or more openings for material entry and exit, and the opening of the valve body lower shell 4 is connected to the discharge pipe.

[0022] A seal is installed inside the valve body for sealing and lubricating the valve core 5 and the shell. The seal is divided into an upper seal 2 and a lower seal 6. The upper seal 2 is used for lubrication sealing between the valve body upper shell 1 and the valve core 5. An opening is formed on the upper seal 2, and the position of the opening corresponds to the opening on the valve body upper shell 1; the lower seal 6 is used for lubrication sealing between the valve body lower shell 4 and the valve core 5. Two or more openings are formed on the lower seal 6, and the position and number of the openings correspond to the openings on the valve body lower shell 4.

[0023] The side and top of the valve core 5 are each provided with a through hole. The top opening of the valve core 5 is connected to the top opening of the valve body upper shell 1, and the side opening of the valve core 5 is connected to one of the openings on the side of the valve body lower shell 4. The material can pass through the opening of the valve body upper shell 1 through the valve core 5 and flow out from one of the openings of the valve body lower shell 4.

[0024] The bottom of the valve body is provided with an actuator 7, which is a pneumatic rotary actuator. The actuator 7 can rotate 360°. The actuator 7 is connected to the valve core 5 and can control the valve core 5 to rotate axially in the shell so that the side opening of the valve core 5 is accurately connected with the side opening of the lower shell 4 of the valve body.

[0025] Taking the case where three ports are provided on the valve body lower shell 4 as an example, the working process of the utility model is as follows:

[0026] The valve body is in a connected state when it is stationary, and materials can enter from the upper shell 1 of the valve body, pass through the upper seal 2, the valve core 5, and the lower seal 6, and be discharged from the first discharge pipe 8 of the lower shell 4 of the valve body; after the actuator 7 rotates, the side opening of the valve core 5 can be rotated to be connected with the second discharge pipe 9 or the third discharge pipe 10, so that the material flow direction can be changed by rotating the valve core 5, and fixed-port material can be flowed in and different-port material can be flowed out; if the lower shell 4 of the valve body is used as the material inlet, different materials can be selectively flowed in.

[0027] Although the embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel quick-release reversing valve, comprising a housing, a valve core (5) being arranged in the housing, characterized in that: The housing is composed of a valve body upper shell (1) and a valve body lower shell (4), and the upper shell (1) and the lower shell (4) are connected and fastened at the joint of the valve body upper shell (1) and the valve body lower shell (4) by a quick-release clamp (3); an upper seal (2) is provided between the valve body upper shell (1) and the valve core (5), and the valve body upper shell (1), the upper seal (2) and the top of the valve core (5) are all formed with openings, and the openings of the three are connected; a lower seal (6) is provided between the valve body lower shell (4) and the valve core (5), and the valve body lower shell (4) and the lower seal (6) are each provided with two or more openings, and the number and position of the openings on the valve body lower shell (4) and the lower seal (6) correspond to each other, and the side of the valve core (5) is provided with an opening, and by rotating the valve core (5), the opening on the side of the valve core (5) is connected with any opening on the valve body lower shell (4).

2. A multi-channel quick-release reversing valve according to claim 1, characterized in that: The valve core (5) is connected to the actuator (7).

3. A multi-channel quick-release reversing valve according to claim 2, characterized in that: The actuator (7) passes through the valve body lower shell (4) and the lower seal (6) and is connected to the bottom of the valve core (5).

4. The multi-channel quick-release reversing valve according to claim 1, characterized in that: The openings on the valve body lower shell (4) are all connected to the discharge pipe.

5. The multi-channel quick-release reversing valve according to claim 1, characterized in that: Three openings are arranged on the valve body lower shell (4).

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