Novel two-position five-way pneumatic control double-lock valve

Abstract

The utility model relates to the field of two-position five-way lock valves, and discloses a novel two-position five-way pneumatic control double-lock valve which comprises a middle body sleeve, a support A is detachably installed on the left side of the middle body sleeve through a double-end bolt, a support B is detachably installed on the right side of the support A through a double-end bolt, and a gasket is detachably installed on the inner side wall of the support B; a sealing groove is formed in the inner side of the support A. An O-shaped ring a is detachably installed on the inner wall of the sealing groove of the support A. A leather cup sealing ring is detachably installed in a hole in the right side face of the support A. A middle shaft is slidably connected into the middle body sleeve, and the top end of the middle shaft and a piston are detachably installed through a cylindrical pin. And the outer wall of the middle shaft is fixedly connected with a spring seat. According to the two-position five-way pneumatic control double-lock valve, the packing cup sealing ring sealing technology is adopted, response sensitivity is guaranteed, the failure rate of the packing cup sealing ring can be effectively reduced, and long-term reliable work of the two-position five-way pneumatic control double-lock valve is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of two-position five-way lock valves, in particular to a novel two-position five-way pneumatically controlled double lock valve. Background Art

[0002] The 2-position 5-way pneumatically controlled double-lock valve is used to control the direction of pneumatic actuators for various purposes. It is mainly used in the pneumatic control systems of workover rigs and drilling rigs. It can operate indoors and outdoors. The valve adopts a low-temperature design and can operate in lower temperature environments.

[0003] In the field of industrial automation control, the 2 / 5-way pneumatically controlled double-lock valve plays a vital role. It can precisely control the flow direction and pressure of gas or liquid and is widely used in various industrial production processes.

[0004] The original two-position five-way pneumatic control double-lock valves used in the pneumatic control systems of well repair rigs and drilling rigs all rely on imported foreign products, which have long delivery cycles, high prices, and untimely service. In addition, the assembly and disassembly processes of many valves are relatively complicated, requiring the use of multiple tools and professional skills, which increases the difficulty of installation and maintenance. The connection methods between the components of some valves are not convenient for operation, and are prone to loosening or leakage. Therefore, a new two-position five-way pneumatic control double-lock valve is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above shortcomings, the utility model provides a new two-position five-way pneumatically controlled double-lock valve, which aims to improve the problem in the existing technology that the assembly and disassembly processes of many valves are relatively complicated, requiring the use of multiple tools and professional skills, which increases the difficulty of installation and maintenance.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a novel two-position five-way pneumatic double-lock valve, comprising a middle body sleeve, a bracket A is detachably mounted on the left side of the middle body sleeve by a stud bolt, a bracket B is detachably mounted on the right side of the bracket A by a stud bolt, a gasket is detachably mounted on the inner side wall of the bracket B, a sealing groove is provided on the inner side of the bracket A, an O-ring a is detachably mounted on the inner wall of the sealing groove of the bracket A, a leather cup sealing ring is detachably mounted in the right side hole of the bracket A, the left outer wall of the middle body sleeve contacts the end cover B, the left surface of the end cover B contacts the flat gasket, an M* screw is passed through and slidably connected to the inner wall of the end cover B, the right side of the bracket B contacts the end cover A, the inner wall of the right end cover A is slidably connected to the piston, an O-ring b is provided on the inner wall of the piston, a central shaft is slidably connected to the interior of the middle body sleeve, the top of the central shaft is detachably mounted on the piston by a cylindrical pin, and the outer wall of the central shaft is fixedly connected to a spring seat.

[0007] As a further description of the above technical solution:

[0008] The end of the liner away from the bracket B contacts the outer wall of the middle body sleeve, and the outer side of the end cover A is rotatably connected to the operating arm.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the liner contacts the inner side wall of the leather cup sealing ring, the M* screw is threadedly connected to the stud bolt, and the inner side wall of the M* screw contacts the surface of the flat washer.

[0011] As a further description of the above technical solution:

[0012] The gaskets are provided in multiple groups and are fixedly connected to the inner wall of the middle body sleeve. The leather cup sealing rings are provided in multiple groups and are fixedly connected to the inner wall of the middle body sleeve.

[0013] As a further description of the above technical solution:

[0014] The end cover A is provided with through holes around it, and the inner wall of the end cover A is penetrated and slidably connected with M* screws.

[0015] As a further description of the above technical solution:

[0016] The inner side wall of the M* screw contacts a flat washer, and one end of the flat washer away from the M* screw contacts the outer surface of the end cover A. The M* screw is threadedly connected to the right stud bolt.

[0017] As a further description of the above technical solution:

[0018] The spring seat is slidably connected to the inner wall of the end cover A, the inner side wall of the spring seat is fixedly connected to a spring, and one end of the spring away from the spring seat is fixedly connected to the inner side wall of the middle body sleeve.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the present invention, the middle shaft is made of stainless steel and is tempered to ensure the hardness of the middle shaft, improve the wear resistance of the middle shaft, extend the service life and increase the working reliability.

[0021] 2. In the present invention, the two-position five-way pneumatic control double lock valve adopts leather cup sealing ring sealing technology to ensure sensitive response, effectively reduce the failure rate of the leather cup sealing ring, and ensure the long-term reliable operation of the two-position five-way pneumatic control double lock valve.

[0022] 3. In the present invention, low-temperature sealing technology is adopted to ensure that the two-position five-way pneumatically controlled double-locking valve can work reliably in a low-temperature environment of -40°C.

[0023] 4. In the present invention, the two-position five-way pneumatically controlled double-lock valve adopts air pressure control reversing to realize the opening and closing of different air paths, thereby accurately controlling the intake and exhaust of pneumatic actuators for various purposes and realizing accurate reversing action of pneumatic actuators for various purposes.

[0024] 5. In the present invention, the two-position five-way pneumatically controlled double-lock valve adopts air pressure to control the reversing, thereby realizing the opening and closing of different air paths, thereby accurately controlling the intake and exhaust of pneumatic actuators for various purposes, and realizing accurate reversing action of pneumatic actuators for various purposes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic plan view of the internal structure of a new type of two-position five-way pneumatically controlled double-locking valve proposed in the utility model;

[0026] Figure 2 This is a partial cross-sectional planar structural diagram of the end cover A of a novel two-position five-way pneumatically controlled double-lock valve proposed in the present invention;

[0027] Figure 3 This is a schematic diagram of a partial cross-sectional planar structure of a manually controlled double-lock valve of a novel two-position five-way pneumatically controlled double-lock valve proposed in the utility model;

[0028] Figure 4 This is a schematic diagram of the top plan structure of a new type of two-position five-way pneumatic double-lock valve proposed by the utility model;

[0029] Figure 5 This is a schematic diagram of a partial cross-sectional planar structure of a novel two-position five-way pneumatically controlled double-lock valve proposed in the present invention;

[0030] Figure 6 This is a schematic diagram of the external planar structure of a novel two-position five-way pneumatically controlled double-lock valve proposed in the utility model.

[0031] Legend:

[0032] 1. M10*35 screw; 2. 10 flat washer; 3. End cover B; 4. O-ring a; 5. Bracket A; 6. Leather cup seal; 7. Gasket; 8. Central shaft; 9. Middle body sleeve; 10. Bracket B; 11. Spring; 12. Spring seat; 13. Piston; 14. O-ring b; 15. M10*50 screw; 16. Cylindrical pin; 17. End cover A; 18. Stud bolt; 19. Operating arm. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0034] Reference Figure 1-Figure 3 A novel two-position five-way pneumatically controlled double-lock valve includes a middle body sleeve 9. A bracket A5 is detachably mounted on the left side of the middle body sleeve 9 via a stud bolt 18. The stud bolt 18 is a prior art device with threads on both sides. The outer side of the middle body sleeve 9 is provided with an internal thread that fits the stud bolt 18. A bracket B10 is detachably mounted on the right side of the bracket A5 via the stud bolt 18. The piston 13 is slidably connected to the inside of the right end cover A17. By connecting a control port on the outer side of the end cover A17, the piston 13 can be moved to move the middle shaft 8. The bracket B10 The right side contacts the end cover A17, and the end cover A17 is provided with through holes around it. The inner wall of the end cover A17 passes through and is slidably connected with an M10*50 screw 15. The inner side wall of the M10*50 screw 15 contacts the 10 flat washer 2. By adding a 10 flat washer 2 at the end cover A17 and the M10*50 screw 15, the threaded connection stability of the M10*50 screw 15 can be increased. The end of the 10 flat washer 2 away from the M10*50 screw 15 contacts the outer surface of the end cover A17, and the M10*50 screw 15 is threadedly connected to the right stud bolt 18.

[0035] Reference Figure 1 and Figure 2, the inner side wall of the bracket B10 is detachably mounted with a gasket 7, and the end of the gasket 7 away from the bracket B10 is in contact with the outer wall of the middle body sleeve 9. By providing a gasket 7 and a leather cup sealing ring 6, the multiple positions of the central axis 8 can be sealed. A sealing groove is provided on the inner side of the bracket A5, and an O-ring a4 is detachably mounted on the inner wall of the sealing groove of the bracket A5. A leather cup sealing ring 6 is detachably mounted on the right side of the hole of the bracket A5. The outer wall of the gasket 7 is in contact with the inner side wall of the leather cup sealing ring 6. The gasket 7 is provided with multiple groups, and the gasket The gasket 7 is fixedly connected to the inner wall of the middle body sleeve 9. By providing multiple sets of gaskets 7 and leather cup sealing rings 6, the connection sealing performance of the connection between the end cover B3 and the end cover A17 can be increased. The leather cup sealing rings 6 are provided with multiple sets. The leather cup sealing rings 6 are fixedly connected to the inner wall of the middle body sleeve 9. The left outer wall of the middle body sleeve 9 contacts the end cover B3. The left surface of the end cover B3 contacts a 10 flat gasket 2. The inner wall of the end cover B3 is penetrated and slidably connected with an M10*35 screw 1. The M10*35 screw 1 is threadedly connected to the stud bolt 18. M The inner side wall of the 10*35 screw 1 contacts the surface of the 10 flat washer 2. The function of the 10 flat washer 2 on the left is the same as that on the left, so that the thread stability of the M10*35 screw 1 can be increased after installation. The inner wall of the right end cover A17 is slidably connected with the piston 13. The inner wall of the piston 13 is provided with an O-ring b14. The inner sliding connection of the middle body sleeve 9 is connected with the middle shaft 8. The top of the middle shaft 8 is detachably installed with the piston 13 through the cylindrical pin 16. The surface of the middle shaft 8 is provided with a through hole, and the cylindrical pin 16 is passed through the movable The plug 13 is connected in series with the central shaft 8, so that the central shaft 8 and the piston 13 can be connected in series, so that the piston 13 can push the central shaft 8 to move synchronously. The outer wall of the central shaft 8 is fixedly connected with a spring seat 12, and the spring seat 12 is slidably connected to the inner wall of the end cover A17. The inner side wall of the spring seat 12 is fixedly connected with a spring 11, and the end of the spring 11 away from the spring seat 12 is fixedly connected to the inner side wall of the middle body sleeve 9. The function of the spring 11 is to automatically reset the position after the piston 13 pushes the central shaft 8 to move.

[0036] Working principle: When no air control operation is performed, the spring 11 is in a natural state, exerting a certain force on the spring seat 12 and the central shaft 8, so that the central shaft 8 and the piston 13 are in a specific position. At this time, the valve is in a closed state or a specific working state. When the external air control signal is input, the gas pressure acts on the piston 13, pushing the piston 13 to slide inside the end cover A17 and the end cover B3. The piston 13 drives the central shaft 8 to slide inside the middle body sleeve 9 through the cylindrical pin 16. The movement of the central shaft 8 changes the channel state inside the valve, realizing the two-position five-way switching function. When the air control signal disappears, the gas pressure decreases or disappears, and the elastic force of the spring 11 acts on the spring seat 12, pushing the central shaft 8 and the piston 13 back to the initial position, so that the valve returns to its initial state or another specific working state. Sealing components such as O-ring a4, leather cup seal 6 and O-ring b14 play a sealing role in different positions to prevent gas or liquid leakage. Components such as gasket 7 and 10 flat gasket 2 play a supporting and auxiliary sealing role. Example

[0037] Reference Figure 3-Figure 6 The outer side of the end cover A17 is rotatably connected to the operating arm 19. By replacing the end cover A17, the operating arm 19 can manually push the piston 13 to move, thereby moving the central axis 8. At the same time, by replacing another end cover A17, the central axis 8 can be pushed to move synchronously by motor.

[0038] Working principle: When manual operation is required, by replacing a specific end cover A17, the operating arm 19 can be connected to the piston 13 inside the valve. The operator rotates the operating arm 19. The rotation of the operating arm 19 will generate a driving force, which directly acts on the piston 13 inside the end cover A17. Under the push of the operating arm 19, the piston 13 slides inside the end cover A17 and the end cover B3. Since the piston 13 is detachably mounted on the central shaft 8 through the cylindrical pin 16, the movement of the piston 13 will drive the central shaft 8 to slide inside the middle body sleeve 9. The movement of the central shaft 8 changes the channel state inside the valve, thereby realizing the manual control function of the valve.

[0039] When the motorized operation mode is adopted, the external mechanical equipment is connected to the end cover A17, and the power generated by the mechanical equipment is used to push the internal structure of the end cover A17. This power is transmitted to the piston 13, and then drives the central axis 8 to move inside the middle body sleeve 9. Similarly, the movement of the central axis 8 changes the internal channel state of the valve, realizing the motorized control function of the valve.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel two-position five-way pneumatically controlled double-lock valve, comprising a middle body sleeve (9), characterized in that: The left side of the middle body sleeve (9) is detachably mounted with a bracket A (5) via a stud bolt (18), the right side of the bracket A (5) is detachably mounted with a bracket B (10) via a stud bolt (18), the inner side wall of the bracket B (10) is detachably mounted with a gasket (7), the inner side of the bracket A (5) is provided with a sealing groove, the inner wall of the sealing groove of the bracket A (5) is detachably mounted with an O-ring a (4), the right side hole of the bracket A (5) is detachably mounted with a leather cup sealing ring (6), the left outer wall of the middle body sleeve (9) contacts with an end cover B (3), the end cover B The left side surface of (3) contacts with 10 flat washers (2), the inner wall of the end cover B (3) penetrates and is slidably connected with an M10*35 screw (1), the right side of the bracket B (10) contacts with the end cover A (17), the inner wall of the right end cover A (17) is slidably connected with a piston (13), the inner wall of the piston (13) is provided with an O-ring b (14), the interior of the middle body sleeve (9) is slidably connected with the middle shaft (8), the top end of the middle shaft (8) is detachably mounted with the piston (13) through a cylindrical pin (16), and the outer wall of the middle shaft (8) is fixedly connected with a spring seat (12).

2. A novel two-position five-way pneumatically controlled double-lock valve according to claim 1, characterized in that: One end of the liner (7) away from the bracket B (10) contacts the outer wall of the middle body sleeve (9), and the outer side of the end cover A (17) is rotatably connected to the operating arm (19).

3. The novel two-position five-way pneumatically controlled double-lock valve according to claim 1 is characterized in that: The outer wall of the gasket (7) contacts the inner side wall of the leather cup sealing ring (6), the M10*35 screw (1) is threadedly connected to the stud bolt (18), and the inner side wall of the M10*35 screw (1) contacts the surface of the 10 flat gasket (2).

4. The novel two-position five-way pneumatically controlled double-lock valve according to claim 1 is characterized in that: The gaskets (7) are provided in multiple groups, and the gaskets (7) are fixedly connected to the inner wall of the middle body sleeve (9). The leather cup sealing rings (6) are provided in multiple groups, and the leather cup sealing rings (6) are fixedly connected to the inner wall of the middle body sleeve (9).

5. The novel two-position five-way pneumatically controlled double-lock valve according to claim 1 is characterized in that: The end cover A (17) is provided with through holes around its periphery, and an M10*50 screw (15) is passed through and slidably connected to the inner wall of the end cover A (17).

6. The novel two-position five-way pneumatically controlled double-lock valve according to claim 1 is characterized in that: The inner side wall of the M10*50 screw (15) contacts a 10 flat washer (2), and one end of the 10 flat washer (2) away from the M10*50 screw (15) contacts the outer surface of the end cover A (17). The M10*50 screw (15) is threadedly connected to the right stud bolt (18).

7. The novel two-position five-way pneumatically controlled double-lock valve according to claim 1 is characterized in that: The spring seat (12) is slidably connected to the inner wall of the end cover A (17), the inner side wall of the spring seat (12) is fixedly connected to the spring (11), and one end of the spring (11) away from the spring seat (12) is fixedly connected to the inner side wall of the middle body sleeve (9).

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