Pneumatic valve with buffer structure

Abstract

The utility model relates to the technical field of pneumatic technology. The pneumatic valve comprises a pneumatic valve body, a connecting pipe is fixedly connected to the outer surface of the lower end of the pneumatic valve body, a buffer structure body is fixedly connected to the outer surface of the lower end of the connecting pipe, and fixing structures are fixedly connected to the outer surfaces of the two ends of the buffer structure body. A second flange is inserted into the outer surface of one end of the fixing structure, and the outer surface of one end of the second flange is fixedly connected with a pipeline. Through the arrangement of the buffer block in the connecting block, media with overlarge pressure can flow in a dispersed mode, then the buffer rod is driven to move downwards through the elastic force of the buffer spring, and when the media flow to the buffer rod, the media can be buffered downwards through the arrangement of the buffer rod; and the situation that the valve body material is seriously abraded or damaged due to overlarge medium pressure is avoided, and the service life of equipment is prolonged to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic technology; more specifically, it relates to a pneumatic valve with a buffer structure. Background Art

[0002] The technical field of pneumatic technology refers to the technology and application fields that use compressed air as the power source. It covers aspects such as the design of pneumatic components, the control and optimization of pneumatic systems, and the development of pneumatic drive devices. A pneumatic valve with a buffer structure is commonly used in the technical field of pneumatic technology and is used in pneumatic systems to achieve precise control of pneumatic equipment by controlling the direction, pressure, and flow rate of the air flow.

[0003] Chinese Patent with the authorization announcement number CN209278510U discloses a pneumatic valve that is easy to install, including a pneumatic valve body and a connecting pipe. There are connecting heads at both ends of the pneumatic valve body, and a connecting flange is provided at the front end of the connecting head. The connecting flange of the pneumatic valve body is fixedly connected to the connecting flange of the connecting pipe through bolts. There is a flange at the front end of the connecting pipe that extends into the inside of the connecting head. There is a retaining ring inside the connecting head of the pneumatic valve body. There is a bushing between the retaining ring and the connecting flange. A hollow structure is formed between the bushing and the outer wall of the connecting head. There is packing inside the hollow structure. There is a packing backing plate at one end of the packing inside the hollow structure that is close to the retaining ring, and a packing gland at the other end of the packing. There is a packing pressing plate outside the packing gland. The packing pressing plate is connected to a gear rack. The gear rack is meshingly connected to a rotating rod. The rotating rod passes through the outer wall of the connecting head and is connected to a rotating handle. The utility model realizes the easy installation of the pneumatic valve and at the same time makes the sealing performance of the utility model better.

[0004] However, when this utility model is actually used, the following problems exist:

[0005] 1. When this pneumatic valve is in use, due to the overly simple installation steps, it may cause the equipment to displace during operation, resulting in the leakage of the medium inside the equipment, which reduces the stability and safety of the equipment to a certain extent;

[0006] 2. When this pneumatic valve is in use, when the medium flows inside the equipment, if the medium pressure is too high, it may cause serious wear or damage to the valve body material, and may also affect the opening and closing functions of the valve, which reduces the service life of the equipment to a certain extent. Summary of the Utility Model

[0007] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pneumatic valve with a buffer structure to solve the problems existing in the above background art.

[0008] The utility model provides the following technical solutions: A pneumatic valve with a buffer structure, including:

[0009] Pneumatic valve body, the outer surface of the lower end of the pneumatic valve body is fixedly connected with a connecting pipe, and the outer surface of the lower end of the connecting pipe is fixedly connected with a buffer structure body. Fixed structures are fixedly connected to the outer surfaces of both ends of the buffer structure body, and a second flange is inserted into the outer surface of one end of the fixed structure. And a pipeline is fixedly connected to the outer surface of one end of the second flange;

[0010] The buffer structure body includes an adapter pipe, and the inner part of the outer surface of the middle part of the adapter pipe is fixedly connected with the outer surface of the lower end of the connecting pipe;

[0011] The fixed structure includes a first flange, and the outer surface of one end of the first flange is fixedly connected with the outer surface of one end of the adapter pipe.

[0012] Preferably, the buffer structure body further includes a sleeve, and there are two groups of sleeves. And a buffer spring body is sleeved inside the sleeve. The outer surface of the lower end of the buffer spring body is fixedly connected with a buffer rod, and the outer surface of the lower end of the buffer rod is sleeved inside the inner part of the upper outer surface of the adapter pipe. Connecting blocks are respectively fixedly connected to the upper and lower sides of both ends of the outer surface of the adapter pipe. When the bottom of the buffer rod is impacted by the medium pressure, according to the self-elastic force of the buffer spring, the upward movement height of the buffer rod can be reduced, increasing the friction on the medium and reducing the pressure to form a buffer.

[0013] Preferably, the outer surfaces of the upper ends of the two groups of sleeves are fixedly connected to the positions on both sides of the connecting pipe on the lower outer surface of the pneumatic valve body. This design makes the buffer rod more stable during use.

[0014] Preferably, the fixed structure further includes hinge rods, and there are two groups of hinge rods. And the outer surfaces of the upper and lower ends of the first flange are respectively fixedly connected with hinge rods. The outer surface of the hinge rod is hinged with a hinge block, and one end inside the hinge block is fixedly connected with a tension spring, and there are two groups of tension springs. The outer surface of one end of the tension spring is fixedly connected with a moving block, and a connecting rod is inserted into the inner part of the lower end of the moving block. After pulling the moving block and releasing it, according to the self-elastic force of the tension spring, the moving block can be driven to contract inward, improving the convenience of the equipment to a certain extent.

[0015] Preferably, the moving block is L-shaped. A limiting block is arranged on the outer surface of one end of the upper end of the moving block, and a limiting groove is opened inside the hinge block. And the outer surface of the limiting block is adapted to the inner surface of the limiting groove. When the moving block moves, the moving distance of the moving block can be limited according to the limiting block arranged on the outer surface of one end of the upper end of the moving block, avoiding detachment from the hinge block.

[0016] Preferably, an adapter pad is fixedly connected to the inside of the outer surface of one side of the first flange, and the adapter pad is made of waterproof rubber. When the outer surface of one end of the first flange is attached to the outer surface of one end of the second flange, connection can be made according to the adapter pad, and the medium can pass through better.

[0017] Preferably, a thread is provided on the outer surface of the other end of the connecting rod, and the outer surface of the thread is adapted to the inner surface of the connecting block. By rotating the connecting rod, the outer surface of one end of the connecting rod is threadedly connected to the inside of the connecting block, thereby fixing the positions of the connecting rod and the moving block.

[0018] Preferably, a plurality of circular grooves are provided on the sides of the first flange and the second flange, and the inner surface of the circular groove is attached to the outer surface of one end of the connecting rod. When the positions of the circular grooves at the upper and lower ends of the first flange and the second flange correspond, fixation can be achieved.

[0019] Technical effects and advantages of the present utility model: By pulling the second flange in the present utility model, the outer surface of one end of the second flange is attached to the outer surface of one end of the first flange. Then, by rotating the hinge block, the outer surface of one side of the hinge block is attached to the side of the second flange. At this time, by pulling the moving block, the outer surface of one end of the moving block is attached to the outer surface of one end of the second flange. Subsequently, the outer surface of the connecting rod is inserted into the moving block, the second flange, and the first flange in sequence. Finally, by rotating the connecting rod, the outer surface of one end of the connecting rod is threadedly connected to the inner surface of the connecting block, thereby fixing the positions of the first flange and the second flange. This installation step is complete, which can avoid the situation of medium leakage inside the equipment caused by displacement during the operation of the equipment, and improve the stability and safety of the equipment to a certain extent;

[0020] Through the setting of the buffer block inside the connecting block, the medium with excessive pressure can be dispersed and flow. Then, by the elastic force of the buffer spring itself, the buffer rod is driven to move downward. When the medium flows towards the buffer rod, the buffer rod can buffer the medium downward, avoiding the situation of serious wear or damage to the valve body material caused by excessive medium pressure, and at the same time reducing the impact on the opening and closing functions of the valve, and improving the service life of the equipment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0022] Figure 2 is a front three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 3 is an exploded three-dimensional structural schematic diagram of the buffer structure body of the present utility model;

[0024] Figure 4Exploded perspective view of the fixing structure of the present utility model.

[0025] Reference numerals are: 1, pneumatic valve body; 2, connecting pipe; 3, buffer structure body; 31, connecting pipe; 32, sleeve; 33, buffer spring body; 34, buffer rod; 35, connecting block; 4, fixing structure; 41, first flange; 42, hinge rod; 43, hinge block; 44, tension spring; 45, moving block; 46, connecting rod; 5, second flange; 6, pipeline. Detailed implementation manners

[0026] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of each structure described in the following implementation manners are merely examples, and the pneumatic technology involved in the present utility model is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0027] Embodiment 1

[0028] As Figures 1 to 3 shown, this embodiment proposes a pneumatic valve with a buffer structure, including;

[0029] The pneumatic valve body 1 can drive a piston to perform a linear reciprocating motion in a cylinder through air pressure. The outer surface of the lower end of the pneumatic valve body 1 is fixedly connected with a connecting pipe 2, and the outer surface of the lower end of the connecting pipe 2 is fixedly connected with a buffer structure body 3. The outer surfaces of both ends of the buffer structure body 3 are fixedly connected with a fixing structure 4. This design enables the device to drive a medium to flow inside the buffer structure body 3 through the activation of the pneumatic valve body 1;

[0030] The buffer structure body 3 includes a connecting pipe 31. The inner part of the outer surface of the middle part of the connecting pipe 31 is fixedly connected to the outer surface of the lower end of the connecting pipe 2. Buffer blocks are fixedly connected to the inner parts at both ends of the connecting pipe 31. The buffer structure body 3 further includes a sleeve 32. There are two sets of sleeves 32. A buffer spring body 33 is sleeved inside the sleeve 32. The outer surface of the lower end of the buffer spring body 33 is fixedly connected to a buffer rod 34. The outer surface of the lower end of the buffer rod 34 is sleeved inside the inner part of the upper end outer surface of the connecting pipe 31. The buffer rod 34 is semicircular. Connecting blocks 35 are fixedly connected to the upper and lower sides of both ends of the outer surface of the connecting pipe 31. Waterproof connection pads are arranged at the positions of the lower ends of the buffer rods 34 inside the outer surfaces of both ends of the upper end of the connecting pipe 31. A limiting groove is opened inside the sleeve 32. A limiting ring is arranged on the outer surface of the upper end of the buffer rod 34. The outer surface of the limiting ring is adapted to the inner surface of the limiting groove. The outer surfaces of the upper ends of the two sets of sleeves 32 are fixedly connected to the positions on both sides of the connecting pipe 2 at the lower end outer surface of the pneumatic valve body 1. According to the design of the buffer blocks, the friction of the medium can be increased to reduce the pressure. When the buffer rod 34 moves inside the waterproof connection pad, the outflow of the medium can be avoided, and the friction of the buffer rod 34 can be increased, making the buffer rod 34 more stable during its position. When the buffer rod 34 moves, the position of the buffer rod 34 can be restricted according to the design of the limiting groove to prevent the buffer rod 34 from detaching from the sleeve 32 during movement.

[0031] Embodiment Two

[0032] As Figure 4 shown, based on the same concept as the above embodiment, this embodiment also proposes:

[0033] A second flange 5 is inserted into the outer surface of one end of the fixing structure 4. A pipe 6 is fixedly connected to the outer surface of one end of the second flange 5. The side area of the second flange 5 is equal to the side area of the first flange 41. The position of the second flange 5 corresponds to the position of the first flange 41. When the equipment needs to be connected, the outer surface of one end of the second flange 5 can be attached to the outer surface of one end of the first flange 41, and then the next operation can be carried out;

[0034] The fixed structure 4 includes a first flange 41, and the outer surface of one end of the first flange 41 is fixedly connected to the outer surface of one end of the connecting pipe 31. The fixed structure 4 further includes two hinge rods 42, and the first flange 41 is fixedly connected to the hinge rods 42 on the upper and lower outer surfaces respectively. The outer surface of the hinge rod 42 is hingedly connected to a hinge block 43, and one end inside the hinge block 43 is fixedly connected to a tension spring 44. There are two tension springs 44. The outer surface of one end of the tension spring 44 is fixedly connected to a moving block 45, and a connecting rod 46 is inserted into the lower end of the moving block 45. There is a circular groove at the lower end of the moving block 45, and the position of the circular groove corresponds to the position of the connecting rod 46. When the device is in use, the hinge block 43 can be hinged and rotated to form a 90-degree angle with the first flange 41. Then, when the moving block 45 is pulled to an appropriate position and released, the moving block 45 fits against the outer surface of one end of the second flange 5 according to the self-elastic force of the tension spring 44, thereby fixing the positions of the moving block 45 and the second flange 5.

[0035] The moving block 45 is L-shaped. A limiting block is provided on the outer surface of one end of the upper end of the moving block 45, and a limiting groove is provided inside the hinge block 43. The outer surface of the limiting block is adapted to the inner surface of the limiting groove. A connecting pad is fixedly connected inside the outer surface of one side of the first flange 41, and the material of the connecting pad is waterproof rubber. A connecting pad is provided on the outer surface of one end of the second flange 5, and the connecting pad at one end of the second flange 5 corresponds to the position of the connecting pad at one end of the first flange 41. When the moving block 45 moves, the position of the moving block 45 can be restricted according to the limiting block provided at one end of the upper end of the moving block 45, preventing the moving block 45 from detaching from the hinge block 43 when it moves.

[0036] Threads are provided on the outer surface of the other end of the connecting rod 46, and the outer surface of the threads is adapted to the inner surface of the connecting block 35. The outer surface of one end of the connecting block 35 is in contact with the outer surface of one end of the first flange 41. A plurality of circular grooves are provided on the side surfaces of both the first flange 41 and the second flange 5, and the inner surface of the circular grooves is in contact with the outer surface of one end of the connecting rod 46. When the positions of the second flange 5 and the first flange 41 correspond, the connecting rod 46 can be inserted inward. When the outer surface of one end of the connecting rod 46 is in contact with the outer surface of one end of the connecting block 35, rotate the connecting rod 46 to fix the position of the connecting rod 46 and the connecting block 35, thereby fixing the positions of the second flange 5 and the first flange 41.

[0037] Working principle: When the device is in use, first place the device at an appropriate position. By moving the second flange 5, the outer surface of one end of the second flange 5 is fitted to the outer surface of one end of the first flange 41. Then, rotate the hinge block 43 forward on the outer surface of the hinge rod 42 so that the outer surface of one side of the hinge block 43 is fitted to the side surface of the second flange 5. At this time, pull the moving block 45 outward so that the outer surface of one end of the moving block 45 is fitted to the outer surface of the other end of the second flange 5. Then, insert the outer surface of the connecting rod 46 into the interiors of the moving block 45, the second flange 5, and the first flange 41 in sequence. Finally, rotate the connecting rod 46 so that the outer surface of one end of the connecting rod 46 is threadedly connected to the inner surface of the connecting block 35. Thus, the positions of the first flange 41 and the second flange 5 are fixed through this design;

[0038] When the device is in use, start the pneumatic valve body 1 so that the medium flows through the interior of the pipeline 6 to the interior of the connecting pipe 31. Through the setting of the buffer block inside the connecting block 35, the medium with excessive pressure is dispersed and flows. Then, drive the buffer rod 34 to move downward according to the elastic force of the buffer spring 33 itself. When the medium flows toward the buffer rod 34, the buffer rod 34 can buffer the medium downward, reducing the pressure of the medium. Thus, through this design, the device buffers the pressure of the medium. The above is all the working principle of this utility model.

[0039] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0040] Second: In the attached drawings of the disclosed embodiments of this utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of this utility model can be combined with each other;

[0041] Finally: The above is only the preferred embodiment of this utility model and is not used to limit this utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this utility model shall be included within the protection scope of this utility model.

Claims

1. A pneumatic valve with a buffer structure, characterized in that: include: A pneumatic valve body (1), wherein the outer surface of the lower end of the pneumatic valve body (1) is fixedly connected to a connecting pipe (2), and the outer surface of the lower end of the connecting pipe (2) is fixedly connected to a buffer structure body (3), the outer surfaces of both ends of the buffer structure body (3) are fixedly connected to a fixing structure (4), and a second flange (5) is inserted into the outer surface of one end of the fixing structure (4), and a pipeline (6) is fixedly connected to the outer surface of one end of the second flange (5); The buffer structure body (3) comprises a connecting pipe (31), and the inner part of the outer surface of the middle part of the connecting pipe (31) is fixedly connected to the outer surface of the lower end of the connecting pipe (2); The fixing structure (4) comprises a first flange (41), and the outer surface of one end of the first flange (41) is fixedly connected to the outer surface of one end of the connecting pipe (31).

2. A pneumatic valve with a buffer structure according to claim 1, characterized in that: The buffer structure body (3) also includes a sleeve (32), and the sleeve (32) is provided with two groups, and a buffer spring body (33) is sleeved inside the sleeve (32), the outer surface of the lower end of the buffer spring body (33) is fixedly connected to a buffer rod (34), and the outer surface of the lower end of the buffer rod (34) is sleeved inside the outer surface of the upper end of the connecting tube (31), and the upper and lower sides of the two ends of the outer surface of the connecting tube (31) are respectively fixedly connected to connecting blocks (35).

3. A pneumatic valve with a buffer structure according to claim 2, characterized in that: The outer surfaces of the upper ends of the two groups of sleeves (32) are fixedly connected to the positions on both sides of the outer surface of the lower end of the pneumatic valve body (1) connecting the pipe (2).

4. The pneumatic valve with a buffer structure according to claim 1, characterized in that: The fixing structure (4) also includes a hinge rod (42), and the hinge rod (42) is provided in two groups, and the outer surfaces of the upper and lower ends of the first flange (41) are respectively fixedly connected to the hinge rod (42), the outer surface of the hinge rod (42) is hingedly connected to the hinge block (43), and one end of the interior of the hinge block (43) is fixedly connected to a tension spring (44), and the tension spring (44) is provided in two groups, the outer surface of one end of the tension spring (44) is fixedly connected to a moving block (45), and a connecting rod (46) is inserted into the lower end of the moving block (45).

5. The pneumatic valve with a buffer structure according to claim 4, characterized in that: The moving block (45) is L-shaped, a limiting block is arranged on the outer surface of one upper end of the moving block (45), a limiting groove is arranged inside the hinge block (43), and the outer surface of the limiting block is matched with the inner surface of the limiting groove.

6. The pneumatic valve with a buffer structure according to claim 4, characterized in that: A connection pad is fixedly connected to the inside of the outer surface of one side of the first flange (41), and the connection pad is made of waterproof rubber.

7. The pneumatic valve with a buffer structure according to claim 4, characterized in that: The outer surface of the other end of the connecting rod (46) is provided with a thread, and the outer surface of the thread is matched with the inner surface of the connecting block (35).

8. The pneumatic valve with a buffer structure according to claim 4, characterized in that: The side surfaces of the first flange (41) and the second flange (5) are both provided with a plurality of circular grooves, and the inner surfaces of the circular grooves are in contact with the outer surface of one end of the connecting rod (46).

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