Bidirectional pneumatic switch valve

Abstract

The utility model discloses a bidirectional pneumatic switch valve, and relates to the technical field of valves. The bidirectional pneumatic switch valve comprises a bidirectional pneumatic switch valve body, a filtering mechanism is arranged on the right side of the bidirectional pneumatic switch valve body and comprises an air storage box, a filtering plate is arranged in the air storage box, a mounting plate is fixed to the bottom of the air storage box through screws, a containing box is fixed to the edge of the upper wall of the mounting plate, and a drying layer is arranged in the containing box. Impurities of an air source are filtered and dried through the drying layer and the filter plate, installation is facilitated through the adjusting installation mechanism, meanwhile, angle adjustment can be conducted, and the problems that in the prior art, when impurities and water are doped in the air source, an air cylinder is polluted, and the service life is affected are solved. And in the prior art, the installation operation is troublesome and the installation angle is inconvenient to adjust because the installation angle is mostly installed at the required position through bolts.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and particularly relates to a two-way pneumatic on-off valve. Background Technique

[0002] As a type of valve, an on-off valve refers to a valve used to control the flow of fluids (liquids or gases), which is commonly found in various industrial and civil applications. According to the power type of the valve, it is divided into manual on-off valves, electric on-off valves, and pneumatic on-off valves. The pneumatic on-off valve is further divided into a one-way pneumatic on-off valve and a two-way pneumatic on-off valve according to the control method. Since the opening and closing time of the two-way pneumatic on-off valve is controlled by air pressure and the opening and closing time is controllable, its application is more extensive.

[0003] After retrieval, the authorized announcement number CN202441968U, and the authorized announcement date September 19, 2012 disclose a two-way pneumatic on-off valve, which includes a cylinder and a valve body. The cylinder includes a cylinder body, a piston, and a piston rod. The valve body includes a valve core, a valve body, and a valve seat. The cylinder body is connected to the valve body, the valve seat is fixed on the valve body, and the valve core is matched with the valve seat; the piston rod and the valve core are of a rigid integral structure, and the rigid integral structure adopts a single axial movement guiding reference surface. Compared with the piston rod and the valve core adopting two or several independent axial movement guiding reference surfaces, the two-way pneumatic on-off valve described in this utility model adopting a single axial movement guiding reference surface can ensure the coincidence degree of the movement axis of the piston and the movement axis of the valve core. At the same time, since the support sleeve is directly sleeved on the piston rod guide sleeve, it is easy to achieve the centering of the piston, the valve core, the piston rod guide sleeve, and the support sleeve; it reduces the possibility of leakage due to misalignment between the valve core and the valve seat opening, reduces the probability of contact and wear between the valve core and the inner wall of the bottom through hole of the support sleeve, and extends the service life of the valve.

[0004] When the prior art is in use, air pressure acts on the upper wall of the piston through the first threaded joint to close the valve, and vice versa to open it. However, the fit between the piston and the cylinder body is precise. When impurities and moisture are mixed in the air source, it will contaminate the cylinder and affect the service life. Moreover, most of the prior art is installed at the required position by bolts. When installing, a bolt wrench is used to screw multiple bolts for installation, resulting in a more troublesome installation operation. At the same time, the installation angle is not convenient to adjust. For this reason, we provide a two-way pneumatic on-off valve to solve the above problems. Content of the Utility Model

[0005] The purpose of the present utility model is to provide a two-way pneumatic switch valve, which filters impurities and dries the air source through a drying layer and a filter plate, and the installation mechanism is adjusted to facilitate installation and angle adjustment. It solves the problems that impurities and moisture in the existing air source will pollute the cylinder and affect the service life, and most of the existing technologies are installed at the required position by bolts, the installation operation is more troublesome, and the installation angle is not easy to adjust.

[0006] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0007] The present utility model is a two-way pneumatic switch valve, including a two-way pneumatic switch valve body. A filtering mechanism is arranged on the right side of the two-way pneumatic switch valve body. The filtering mechanism includes a gas storage box. A filter plate is arranged inside the gas storage box. The bottom of the gas storage box is fixed with a mounting plate by screws. A placement box is fixed along the edge of the upper wall of the mounting plate. A drying layer is arranged inside the placement box;

[0008] An adjusting and installing mechanism is arranged on the left side of the two-way pneumatic switch valve body. The adjusting and installing mechanism includes a mounting block fixed on the left wall of the two-way pneumatic switch valve body. A connecting box is arranged outside the mounting block. A plug rod is inserted into the upper wall of the connecting box, and the plug rod is inserted into the inside of the mounting block. Side plates are arranged in front of and behind the connecting box. A connecting rod penetrates through the upper part of the side plate, and the connecting rod is fixedly connected with the connecting box.

[0009] The present utility model is further arranged such that the placement box is in a rectangular shape. A sealing gasket is fixed on the outer part of the placement box corresponding to the upper wall of the mounting plate. The upper wall of the placement box abuts against the lower wall of the filter plate.

[0010] The present utility model is further arranged such that a limiting frame is arranged along the edge of the upper wall of the filter plate, and the limiting frame is in a rectangular shape and is fixedly connected with the gas storage box.

[0011] The present utility model is further arranged such that an air inlet pipe is fixed on the lower side of the right wall of the gas storage box, and the inside of the air inlet pipe is communicated with the inside of the gas storage box. Perforations are evenly arranged on the right wall of the placement box corresponding to the position of the air inlet pipe.

[0012] The present utility model is further arranged such that a three-way pipe is fixed on the upper side of the left wall of the gas storage box, and electromagnetic valves are arranged at the other two ends of the three-way pipe. The air inlet ends of the electromagnetic valves are fixedly connected with the corresponding three-way pipes. The air outlet ends of the electromagnetic valves are connected with the corresponding first threaded joint and second threaded joint in the two-way pneumatic switch valve body.

[0013] The present utility model is further configured such that a return spring and a U-shaped plate are sequentially arranged outside the insertion rod, and the U-shaped plate is fixedly connected to the connection box. A baffle is fixedly arranged on the upper wall of the connection box corresponding to the outside of the insertion rod, and the upper and lower ends of the return spring are respectively abutted against the corresponding U-shaped plate and the baffle. A pinch block is fixedly arranged at the upper end of the insertion rod.

[0014] The present utility model is further configured such that a connecting plate is fixedly arranged at the left end of the side plate, and mounting holes are respectively formed at the front and rear ends of the connecting plate. A convex platform is fixedly arranged at the outer end of the connecting rod.

[0015] The present utility model is further configured such that a bolt is arranged to the right of the connecting rod located at the front side, and the bolt is in threaded connection with the corresponding side plate. Blind holes are formed in a circumferential array on the connection box corresponding to the position of the bolt, and the rear end of the bolt is located in the corresponding blind hole.

[0016] The present utility model has the following beneficial effects:

[0017] 1. By arranging a drying layer and a filter plate, the present utility model absorbs moisture in the air source entering the inside of the air storage box through the drying layer, so that the gas entering the body of the two-way pneumatic switch valve is dry gas. And the filter plate filters impurities in the air source to filter impurities in the gas entering the body of the two-way pneumatic switch valve, avoiding abnormal wear caused by moisture and impurities entering the cylinder, and avoiding the situation that impurities and moisture contaminate the cylinder and affect the service life, thus solving the problem that the existing technology that impurities and moisture in the air source will contaminate the cylinder and affect the service life.

[0018] 2. By arranging an adjusting and installing mechanism, the present utility model can complete the installation by inserting the installation block into the connection box and inserting the insertion rod into the inside of the installation block, making the installation of the two-way pneumatic switch valve body simpler and more convenient. And by relatively rotating the connection box and the side plate to the required angle and inserting the inner end of the bolt into the blind hole, the angle of the two-way pneumatic switch valve body can be adjusted, achieving the purpose of adjusting the installation angle of the two-way pneumatic switch valve body, thus solving the problem that in the existing technology, most are installed at the required position through bolts, the installation operation is relatively troublesome, and at the same time, the installation angle is not convenient to adjust.

[0019] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. Brief Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings.

[0021] Figure 1 It is an overall structure diagram of a two-way pneumatic switch valve.

[0022] Figure 2 It is a right view structure diagram of a two-way pneumatic switch valve.

[0023] Figure 3 It is an exploded view of a partial structure of the filtering mechanism.

[0024] Figure 4 It is a structure diagram inside the air storage box.

[0025] Figure 5 It is an exploded structure diagram of the adjusting and mounting mechanism.

[0026] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0027] 1 - Two-way pneumatic switch valve body, 2 - Filtering mechanism, 201 - Air storage box, 201a - Inlet pipe, 201b - Three-way pipe, 201c - Limit frame, 202 - Mounting plate, 202a - Sealing gasket, 203 - Solenoid valve, 204 - Drying layer, 205 - Placing box, 205a - Perforation, 206 - Filter plate, 3 - Adjusting and mounting mechanism, 301 - Mounting block, 302 - Plug rod, 302a - Pinch block, 302b - Baffle, 303 - Return spring, 304 - Connecting box, 304a - Blind hole, 304b - U-shaped plate, 305 - Connecting plate, 305a - Side plate, 306 - Bolt, 307 - Connecting rod, 3071 - Boss. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figures 1-4, the utility model relates to a two-way pneumatic switch valve, which comprises a two-way pneumatic switch valve body 1. For the two-way pneumatic switch valve body 1, please refer to the authorized announcement number CN202441968U, and no further description will be given here. A filtering mechanism 2 is arranged on the right side of the two-way pneumatic switch valve body 1. The filtering mechanism 2 comprises an air storage box 201. A filter plate 206 is arranged inside the air storage box 201 for filtering impurities in the air source. An installation plate 202 is fixed to the bottom of the air storage box 201 by screws. A placement box 205 is fixed to the edge of the upper wall of the installation plate 202. A drying layer 204 is arranged inside the placement box 205. The drying layer 204 adopts silica gel desiccant to absorb moisture in the air source;

[0031] Specifically, the placement box 205 is arranged in a U-shape. A sealing gasket 202a is fixed to the outside of the placement box 205 corresponding to the upper wall of the installation plate 202 to prevent air leakage between the installation plate 202 and the air storage box 201. The upper wall of the placement box 205 abuts against the lower wall of the filter plate 206;

[0032] A limiting frame 201c is arranged on the edge of the upper wall of the filter plate 206, and the limiting frame 201c is arranged in a U-shape. The filter plate 206 is clamped and fixed by the limiting frame 201c and the placement box 205. The limiting frame 201c is fixedly connected with the air storage box 201;

[0033] An air inlet pipe 201a is fixed to the lower side of the right wall of the air storage box 201, and the inside of the air inlet pipe 201a is communicated with the inside of the air storage box 201. The outside air source enters the inside of the air storage box 201 through the air inlet pipe 201a. Through holes 205a are evenly formed in the right wall of the placement box 205 corresponding to the position of the air inlet pipe 201a. The diameter of the through holes 205a is smaller than the diameter of the silica gel desiccant to prevent the silica gel desiccant from leaking;

[0034] A three-way pipe 201b is fixed to the upper side of the left wall of the air storage box 201, and solenoid valves 203 are arranged at the other two ends of the three-way pipe 201b. The air inlet ends of the solenoid valves 203 are fixedly connected with the corresponding three-way pipe 201b. The air outlet ends of the solenoid valves 203 are connected with the corresponding first threaded joint and second threaded joint in the two-way pneumatic switch valve body 1;

[0035] The operation process of this embodiment is as follows: The air source passes through the intake pipe 201a and the perforation 205a and enters the placement box 205 to contact the drying layer 204. The silica gel desiccant in the drying layer 204 absorbs the moisture in the air source. Then the air source moves upward to the upper part of the storage box 201. When passing through the filter plate 206, the filter plate 206 filters the impurities in the air source. When the solenoid valve 203 on the right side of the two-way pneumatic switch valve body 1 is opened, at this time, the air source passes through the second threaded joint and enters the inside of the two-way pneumatic switch valve body 1 and pushes the piston upward, and the valve core is separated from the valve core seat to open the valve. When the solenoid valve 203 above the two-way pneumatic switch valve body 1 is opened, the air source passes through the first threaded joint and enters the inside of the two-way pneumatic switch valve body 1 and pushes the piston downward, and the valve core contacts the valve core seat to close the valve.

[0036] Embodiment 2

[0037] Please refer to Figure 1 and 5 As shown in [figures] and [figures], this is the second embodiment of the present utility model. This embodiment is based on the previous embodiment. Different from the first embodiment, an adjustment and installation mechanism 3 is provided on the left side of the two-way pneumatic switch valve body 1. The adjustment and installation mechanism 3 includes a mounting block 301 fixed on the left wall of the two-way pneumatic switch valve body 1. A connection box 304 is arranged outside the mounting block 301. The mounting block 301 and the connection box 304 are in clearance fit. The connection with the two-way pneumatic switch valve body 1 can be completed by inserting the mounting block 301 into the connection box 304. A plug rod 302 is inserted into the upper wall of the connection box 304, and the plug rod 302 is inserted into the inside of the mounting block 301. In this state, the mounting block 301 and the connection box 304 are relatively fixed, so that the position of the two-way pneumatic switch valve body 1 is fixed. Side plates 305a are arranged in front of and behind the connection box 304. A connecting rod 307 is penetrated through the upper part of the side plate 305a, and the connecting rod 307 is fixedly connected with the connection box 304. The connecting rod 307 and the side plate 305a are in clearance fit;

[0038] Specifically, a return spring 303 and a U-shaped plate 304b are sequentially arranged outside the plug rod 302, and the U-shaped plate 304b is fixedly connected with the connection box 304. A baffle 302b is fixed on the upper wall of the connection box 304 corresponding to the outside of the plug rod 302. The upper and lower ends of the return spring 303 are respectively abutted against the corresponding U-shaped plate 304b and the baffle 302b. A pinch block 302a is fixed at the upper end of the plug rod 302. By applying a force to the baffle 302b through the return spring 303, it is avoided that the plug rod 302 is accidentally separated from the mounting block 301. The disassembly and assembly operation between the mounting block 301 and the connection box 304 can be carried out by operating the pinch block 302a to move;

[0039] A connecting plate 305 is fixed to the left end of the side plate 305a. Installation holes are provided at both the front and rear ends of the connecting plate 305. By using fasteners to pass through the installation holes, the connecting plate 305 can be fixed at the required position. A boss 3071 is fixed to the outer end of the connecting rod 307 to prevent the connecting rod 307 from detaching from the side plate 305a;

[0040] A bolt 306 is arranged to the right of the connecting rod 307 on the front side, and the bolt 306 is threadedly connected to the corresponding side plate 305a. Blind holes 304a are arranged in a circumferential array on the corresponding connection box 304 at the position where the bolt 306 is located, and the rear end of the bolt 306 is located in the corresponding blind hole 304a. In this state, the angle between the connection box 304 and the side plate 305a is relatively fixed, so as to prevent the connection box 304 and the side plate 305a from rotating, resulting in the situation that the two-way pneumatic switch valve body 1 is fixed unstably;

[0041] The remaining structures are the same as those in Embodiment 1;

[0042] The operation process of this embodiment is as follows: The connecting plate 305 is fixed to the installation platform by passing fasteners through the installation holes. Then, the pinch block 302a is operated to move upward, and the two-way pneumatic switch valve body 1 is operated to insert the installation block 301 into the connection box 304. The acting force on the pinch block 302a is released, and under the action of the return spring 303, the insertion rod 302 is inserted into the installation block 301. Then, the bolt 306 is operated to rotate and disengage from the corresponding blind hole 304a. At this time, the two-way pneumatic switch valve body 1 is operated to rotate to the required angle, and then the bolt 306 is operated to rotate so that the inside of the bolt 306 is located in the corresponding blind hole 304a, and the angle adjustment of the two-way pneumatic switch valve body 1 can be completed.

[0043] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A two-way pneumatic switch valve, comprising a two-way pneumatic switch valve body (1), characterized in that: A filter mechanism (2) is arranged on the right side of the bidirectional pneumatic switch valve body (1), the filter mechanism (2) comprising an air storage box (201), a filter plate (206) being arranged inside the air storage box (201), a mounting plate (202) being fixed to the bottom of the air storage box (201) by screws, a placement box (205) being fixed along the edge of the upper wall of the mounting plate (202), and a drying layer (204) being arranged inside the placement box (205); An adjusting mounting mechanism (3) is arranged on the left side of the bidirectional pneumatic switch valve body (1), and the adjusting mounting mechanism (3) comprises a mounting block (301) fixed to the left wall of the bidirectional pneumatic switch valve body (1); a connecting box (304) is arranged outside the mounting block (301); a plug rod (302) is inserted into the upper wall of the connecting box (304), and the plug rod (302) is inserted into the inside of the mounting block (301); side plates (305a) are arranged in front and rear of the connecting box (304); a connecting rod (307) is arranged on the upper side of the side plate (305a), and the connecting rod (307) is fixedly connected to the connecting box (304).

2. A two-way pneumatic switch valve according to claim 1, characterized in that: The placement box (205) is arranged in a circular shape, and a sealing gasket (202a) is fixed to the outside of the placement box (205) corresponding to the upper wall of the mounting plate (202), and the upper wall of the placement box (205) abuts against the lower wall of the filter plate (206).

3. A two-way pneumatic switch valve according to claim 2, characterized in that: A limiting frame (201c) is arranged along the edge of the upper wall of the filter plate (206), and the limiting frame (201c) is arranged in a circular shape. The limiting frame (201c) is fixedly connected to the gas storage box (201).

4. A two-way pneumatic switch valve according to claim 3, characterized in that: An air intake pipe (201a) is fixed to the lower side of the right wall of the air storage box (201), and the interior of the air intake pipe (201a) is communicated with the interior of the air storage box (201), and perforations (205a) are evenly provided at the position where the air intake pipe (201a) is located, corresponding to the right wall of the placement box (205).

5. A two-way pneumatic switch valve according to claim 4, characterized in that: A three-way pipe (201b) is fixed on the upper side of the left wall of the gas storage box (201), and solenoid valves (203) are provided at the other two ends of the three-way pipe (201b), the air inlet end of the solenoid valve (203) is fixedly connected to the corresponding three-way pipe (201b), and the air outlet end of the solenoid valve (203) is connected to the corresponding first threaded joint and second threaded joint in the two-way pneumatic switch valve body (1).

6. A two-way pneumatic switch valve according to claim 1, characterized in that: The outside of the insertion rod (302) is provided with a return spring (303) and a U-shaped plate (304b) in sequence, and the U-shaped plate (304b) is fixedly connected to the connection box (304), and a baffle (302b) is fixed on the upper wall of the connection box (304) corresponding to the outside of the insertion rod (302), and the upper and lower ends of the return spring (303) are respectively abutted against the corresponding U-shaped plate (304b) and the baffle (302b), and a pinch block (302a) is fixed on the upper end of the insertion rod (302).

7. A two-way pneumatic switch valve according to claim 1, characterized in that: A connecting plate (305) is fixed to the left end of the side plate (305a), and mounting holes are provided at both the front and rear ends of the connecting plate (305), and a boss (3071) is fixed to the outer end of the connecting rod (307).

8. A two-way pneumatic switch valve according to claim 7, characterized in that: A bolt (306) is provided on the right side of the connecting rod (307) located on the front side, and the bolt (306) is threadedly connected to the corresponding side plate (305a), and blind holes (304a) are opened in a circular array on the connecting box (304) corresponding to the position where the bolt (306) is located, and the rear end of the bolt (306) is located in the corresponding blind hole (304a).

Images