Sleeve valve

Abstract

The utility model discloses a sleeve valve which comprises a main cylinder body, a valve shaft and a valve element. During use, the main cylinder is inserted into the gas path channel of the gas path plate, the gas inlet window faces the main gas path, the gas outlet window faces the working gas path, when high-pressure gas needs to be used for working, control gas pushes the valve element, the valve shaft drives the valve block to move, and the gas inlet window and the gas outlet window are communicated through a channel; after working gas enters the main cylinder through the gas inlet window and then enters the working gas path through the gas outlet window, and supply of the working gas needs to be stopped, the control gas does not push the valve element any more, the valve shaft drives the valve block to reset, and a passage between the gas inlet window and the gas outlet window is disconnected; installation of the gas path control valve in the circular gas path channel is achieved, and meanwhile large-flux gas supply is achieved through the gas inlet window and the gas outlet window.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic control valves, and particularly to sleeve valves. Background Technology

[0002] Existing equipment delivers working gas through pipelines. During operation, control valves are used to open and close the pipelines to control the supply of working gas and meet the needs of different operating conditions. However, existing control valves are usually external and occupy space inside the equipment. Therefore, a control valve that can be installed inside the gas pipeline is needed to reduce the space occupied inside the equipment. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an embodiment of this utility model proposes a sleeve valve, including a main cylinder, a valve shaft, and a valve core. The main cylinder includes a closed end and an open end. An air outlet and an air inlet are arranged sequentially, with the air inlet adjacent to the closed end and the air outlet adjacent to the air inlet. The air outlet is located on the cylinder wall in the middle of the main cylinder. The valve shaft is installed inside the main cylinder, and its tail end is movably inserted into the closed end. A valve block is provided on the valve shaft, which is used to disconnect and connect the passage between the air inlet and the air outlet. The valve core is installed at the front end of the valve shaft, and the valve core is located at the open end. Pushing the valve core causes the valve shaft to move.

[0004] According to some embodiments of the present invention, the main cylinder includes a first sleeve, a second sleeve, and a third sleeve connected in sequence. One end of the first sleeve is the closed end, and an air inlet window is opened on the cylinder wall of the first sleeve; an air outlet window is opened on the cylinder wall of the first sleeve; one end of the third sleeve is the open end; a first rubber-coated clip is sandwiched between the first sleeve and the second sleeve, and a second rubber-coated clip is sandwiched between the second sleeve and the third sleeve. The first rubber-coated clip contacts and seals the inner cavity space of the first sleeve with the valve block, and the second rubber-coated clip contacts and seals the inner cavity space of the third sleeve with the valve core.

[0005] According to some embodiments of the present invention, the valve block is located inside the first sleeve, the valve block is provided with a first sealing surface, and the first sealing surface is pressed and contacted with the first rubber-coated clip.

[0006] According to some embodiments of the present invention, the valve block is located inside the second sleeve. The valve block is divided into a first valve block and a second valve block. The first valve block is provided with a second sealing surface, and the second valve block is provided with a third sealing surface. The second sealing surface is pressed and contacted with the first rubber-coated clip, and the third sealing surface is pressed and contacted with the second rubber-coated clip.

[0007] According to some embodiments of the present invention, the other end of the first sleeve is a first connecting end, and the first connecting end is connected to the first sleeve; the first sleeve has two second connecting ends;

[0008] The other end of the third sleeve is the third connecting end, and the two second connecting ends are respectively connected to the first connecting end and the third connecting end.

[0009] According to some embodiments of the present invention, the first connecting end, the second connecting end, and the third connecting end all have recessed positions, and the rubber-coated clips are respectively clamped between adjacent recessed positions.

[0010] According to some embodiments of the present invention, a first sealing ring is clamped between the first connecting end and the second connecting end, and between the second connecting end and the third connecting end, and the two first sealing rings are respectively sleeved on the outside of the first rubber-coated clip and the second rubber-coated clip.

[0011] According to some embodiments of this utility model, the closed end is provided with a mounting hole; the closed end is provided with an inner protrusion, the inner protrusion is located in the inner cavity of the first sleeve, and a shaft hole is passed through the inner protrusion. The shaft hole communicates with the mounting hole, the diameter of the mounting hole is larger than the diameter of the shaft hole, the valve shaft is inserted into the shaft hole, and a screw is installed at the tail end of the valve shaft. The screw is located in the mounting hole, the diameter of the screw nut is smaller than the diameter of the mounting hole, and the diameter of the screw nut is larger than the diameter of the shaft hole.

[0012] According to some embodiments of this utility model, the valve core is located inside the third sleeve, and a spring is sleeved on the valve core. The two ends of the spring are respectively in close contact with the valve core and the second rubber-coated clip.

[0013] According to some embodiments of this utility model, a second sealing ring is fitted on the valve core, and the second sealing ring contacts the inner wall of the third sleeve.

[0014] The embodiments of this utility model have at least the following beneficial effects:

[0015] 1. In use, simply insert the main cylinder into the air passage of the air circuit board, with the air inlet facing the main air passage and the air outlet facing the working air passage. When high-pressure air is required for operation, the control air pushes the valve core, causing the valve shaft to move the valve block, thus connecting the air inlet and air outlet. This allows the working air to enter the main cylinder through the air inlet and then enter the working air passage through the air outlet. When the supply of working air needs to be stopped, the control air stops pushing the valve core, causing the valve shaft to reset the valve block, thus disconnecting the passage between the air inlet and air outlet. This allows for the installation of the air circuit control valve within the circular air passage, reducing space occupation within the equipment, while simultaneously achieving a large flow rate of air supply through the air inlet and air outlet.

[0016] 2. The main cylinder includes a first sleeve, a third sleeve, and a third sleeve connected in sequence. The number of first sleeves can be selected according to the number of working air passages, and they are matched with a corresponding number of valve blocks to adapt to different types of air passage boards and meet the control requirements of multiple air passages.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;

[0020] Figure 2 This is an overall exploded view of an embodiment of the present utility model;

[0021] Figure 3 This is a front view of the main cylinder according to an embodiment of the present utility model;

[0022] Figure 4 for Figure 3 Explosion-proof diagram of section AA in the middle;

[0023] Figure 5 This is a front view schematic diagram of the first embodiment of the valve block of this utility model;

[0024] Figure 6 for Figure 5 Schematic diagram of the valve block in closed state in the middle BB section;

[0025] Figure 7 for Figure 5 Schematic diagram of the valve block in the open state in the middle BB section;

[0026] Figure 8This is a front view schematic diagram of the second embodiment of the valve block of this utility model;

[0027] Figure 9 for Figure 8 Schematic diagram of the valve block in the open state in the middle CC section;

[0028] Figure 10 for Figure 5 Schematic diagram of the valve block in the closed state in the middle CC section. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0031] Reference Figure 1 , 2 A sleeve valve includes a main cylinder 100, a valve shaft 200, and a valve core 300. The main cylinder 100 includes a closed end 101 and an open end 102. An air outlet 104 and an air inlet 103 are arranged sequentially, with the air inlet 103 adjacent to the closed end 101 and the air outlet 104 adjacent to the air inlet 103. The air outlet 104 is located on the cylinder wall in the middle of the main cylinder 100. The valve shaft 200 is installed inside the main cylinder 100, and the tail end of the valve shaft 200 is movably inserted into the closed end 101. A valve block 210 is provided on the valve shaft 200, which is used to disconnect and connect the passage between the air inlet 103 and the air outlet 104. The valve core 300 is installed at the front end of the valve shaft 200, and the valve core 300 is located at the open end 102. Pushing the valve core 300 causes the valve shaft 200 to move.

[0032] In use, simply insert the main cylinder 100 into the air passage of the air circuit board, with the air inlet 103 facing the main air passage and the air outlet 104 facing the working air passage. When high-pressure air is required for operation, the control air pushes the valve core 300, causing the valve shaft 200 to move the valve block 210, thus connecting the air inlet 103 and the air outlet 104. This allows the working air to enter the main cylinder 100 through the air inlet 103 and then enter the working air passage through the air outlet 104. When the supply of working air needs to be stopped, the control air stops pushing the valve core 300, causing the valve shaft 200 to reset the valve block 210, thus disconnecting the passage between the air inlet 103 and the air outlet 104. This achieves the installation of the air circuit control valve within the circular air passage, while simultaneously enabling a large flow of air supply through the air inlet 103 and the air outlet 104.

[0033] Reference Figure 1 , 2 The main cylinder 100 includes a first sleeve 110, a second sleeve 120, and a third sleeve 130 connected in sequence. One end of the first sleeve 110 is a closed end 101, and an air inlet window 103 is opened on the cylinder wall of the first sleeve 110. An air outlet window 104 is opened on the cylinder wall of the second sleeve 120. One end of the third sleeve 130 is an open end 102.

[0034] The second sleeve 120 can be selected in appropriate quantities according to the number of working air passages, and can be matched with an appropriate number of valve blocks 210 to adapt to different types of air passage boards and meet the control requirements of multiple air passages.

[0035] Reference Figure 3 , 4 A first rubber-coated clamping piece 240 is installed between the first sleeve 110 and the second sleeve 120, and a second rubber-coated clamping piece 250 is installed between the second sleeve 120 and the third sleeve 130. The first rubber-coated clamping piece 240 and the second rubber-coated clamping piece 250 connect the first sleeve 110, the second sleeve 120 and the third sleeve 130 into a whole, while ensuring the overall airtightness of the main cylinder 100, and preventing leakage of working air due to insufficient airtightness, which would lead to a drop in air pressure and affect its use.

[0036] The first rubber-coated clip 240 contacts and seals the inner cavity of the first sleeve 110 with the valve block 210, preventing working air from entering the gas-using equipment or gas control device when it is not in use, thus affecting the normal use of the gas-using equipment or gas control device.

[0037] In addition, the second rubber-coated clip 250 contacts and seals the inner cavity of the third sleeve 130 with the valve core 300 and valve block 210 to prevent working gas from leaking from the inner cavity of the third sleeve 130 and affecting the normal use of the gas-using equipment or gas control device.

[0038] Valve block 210 has two implementation methods:

[0039] Reference Figures 5 to 7 In one embodiment, the valve block 210 is located inside the first sleeve 110. The valve block 210 is provided with a first sealing surface 201, which is pressed and contacted with the first rubber-coated clip 240.

[0040] Reference Figure 6 After the gas supply is completed, the control gas is disconnected, the valve block 210 is reset, and the first sealing surface 201 is pressed into contact with the first rubber-coated clip 240, so that the space of the first sleeve 110 and the space of the second sleeve 120 are separated and sealed.

[0041] Reference Figure 7 When supplying air, the control air pushes the valve core 300, causing the valve shaft 200 to move the valve block 210 toward the closed end 101, so that the first closed surface 201 is released from contact with the first rubber-coated clip 240, and an air passage gap is formed between the first closed surface 201 and the first rubber-coated clip 240. The working air that enters the first sleeve 110 from the main air passage enters the second sleeve 120 through the above gap, and enters the working air passage through the air outlet 104.

[0042] When using implementation method one, the gas path is normally closed.

[0043] Reference Figures 8 to 10 In the second embodiment, the valve block 210 is located inside the second sleeve 120. The valve block 210 is divided into a first valve block 211 and a second valve block 212. The first valve block 211 is provided with a second sealing surface 202, and the second valve block 212 is provided with a third sealing surface 203. The second sealing surface 202 is pressed and contacted with the first rubber-coated clip 240, and the third sealing surface 203 is pressed and contacted with the second rubber-coated clip 250.

[0044] Reference Figure 9 When the valve core 300 is not pushed by the control air, the second sealing surface 202 and the first rubber-coated clip 240 do not contact each other, forming an air gap between the second sealing surface 202 and the first rubber-coated clip 240. The working air entering the first sleeve 110 from the main air passage enters the second sleeve 120 through the above gap and enters the working air passage through the air outlet 104. At this time, the third sealing surface 203 presses against the second rubber-coated clip 250, so that the working air in the second sleeve 120 will not enter the third sleeve 130, resulting in control air leakage.

[0045] Reference Figure 10 When the working gas needs to be disconnected, the valve core 300 is pushed by the control gas, causing the valve shaft 200 to move the valve block 210 toward the closed end 101, so that the second closed surface 202 and the first rubber-coated clip 240 are pressed into contact, and the space of the first sleeve 110 and the space of the second sleeve 120 are separated and closed.

[0046] When using the second implementation method, the gas path is kept open.

[0047] Reference Figure 4 The other end of the first sleeve 110 is the first connecting end 111, which is connected to the second sleeve 120; the second sleeve 120 has two second connecting ends 121.

[0048] The other end of the third sleeve 130 is the third connecting end 131, and the two second connecting ends 121 are respectively connected to the first connecting end 111 and the third connecting end 131.

[0049] To facilitate the clamping and fixing of the first rubber-coated clip 240 and the second rubber-coated clip 250, the first connecting end 111, the second connecting end 121 and the third connecting end 131 each have a recess 105, and rubber-coated clips are clamped between adjacent recesses 105.

[0050] To further improve the sealing performance of this sleeve valve, first sealing rings 400 are clamped between the first connecting end 111 and the second connecting end 121, and between the second connecting end 112 and the third connecting end 131. The two first sealing rings 400 are respectively fitted onto the outside of the first rubber-coated clip 240 and the second rubber-coated clip 250.

[0051] Since the first sleeve 110 and the second sleeve 120, and the second sleeve 120 and the third sleeve 130 are respectively equipped with a first rubber-coated clip 240 and a second rubber-coated clip 250, if there is a defect in the fixing of the first rubber-coated clip 240 and the second rubber-coated clip 250, the working gas will leak from the gap between the first sleeve 110 and the second sleeve 120, and the second sleeve 120 and the third sleeve 130. Therefore, the first sealing ring 400 is used to strengthen the seal so that the working gas cannot leak from the gap between the first sleeve 110 and the second sleeve 120, and the second sleeve 120 and the third sleeve 130.

[0052] Secondly, due to the presence of the air inlet window 103 and the air outlet window 104, the working air in the first sleeve 110 enters the gap between the first sleeve 110 and the air passage through the air inlet window 103, and then directly enters the working air passage, causing the sleeve valve to fail. To address this, when the sleeve valve is installed into the air passage in the air passage plate, the first sealing ring 400 contacts and seals with the inner wall of the air passage, thereby preventing the working air from entering the gap between the main cylinder 100 and the air passage, and preventing the sleeve valve from failing.

[0053] Reference Figure 4 , 67, 9, 10. A mounting hole 112 is provided at the closed end 101; an inner protrusion 113 is provided at the closed end 101, the inner protrusion 113 is located in the inner cavity of the first sleeve 110, and a shaft hole 114 is passed through the inner protrusion 113. The shaft hole 114 communicates with the mounting hole 112. The diameter of the mounting hole 112 is larger than the diameter of the shaft hole 114. A valve shaft 200 is inserted into the shaft hole 114. A screw 500 is installed at the tail end of the valve shaft 200. The screw 500 is located in the mounting hole 112. The diameter of the screw 500 nut is smaller than the diameter of the mounting hole 112, and the diameter of the screw 500 nut is larger than the diameter of the shaft hole 114.

[0054] This ensures that the valve shaft 200 will not be pulled out from the closed end 101 when the control gas is disconnected and reset, and at the same time, it does not affect the movement of the valve shaft 200.

[0055] Reference Figure 6 , 7 9, 10. The valve core 300 is located inside the third sleeve 130. A spring 600 is fitted on the valve core 300. The two ends of the spring 600 are in close contact with the valve core 300 and the second rubber-coated clip 250, respectively. When the valve core 300 moves towards the closed end 101, it will compress the spring 600, causing the spring 600 to deform and generate elastic force. After the control gas is released, the elastic force is used to quickly reset the valve core 300, realizing the disconnection or connection between the first sleeve and the second sleeve 120, and realizing a rapid response in operation.

[0056] A second sealing ring 700 is fitted on the valve core 300. The second sealing ring 700 contacts the inner wall of the third sleeve 130 to prevent the control gas from entering the third sleeve 130 through the gap between the valve core 300 and the inner wall of the third sleeve 130, and further entering the second sleeve 120, which would increase the amount of working gas and affect the normal gas supply.

[0057] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.

[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sleeve valve, characterized in that, include: The main cylinder (100) is used to insert into the air passage in the air passage plate. The main cylinder (100) includes a closed end (101) and an open end (102). The cylinder wall of the main cylinder (100) has an air inlet window (103) and an air outlet window (104). The air outlet window (104) and the air inlet window (103) are arranged in sequence. The air inlet window (103) is adjacent to the closed end (101), and the air outlet window (104) is adjacent to the air inlet window (103). A valve shaft (200) is installed inside the main cylinder (100), and the tail end of the valve shaft (200) is movably inserted into the closed end (101). A valve block (210) is provided on the valve shaft (200), and the valve block (210) is used to disconnect and connect the passage between the air inlet window (103) and the air outlet window (104). A valve core (300) is mounted on the front end of the valve shaft (200) and the valve core (300) is located at the open end (102). Pushing the valve core (300) causes the valve shaft (200) to move.

2. The sleeve valve according to claim 1, characterized in that, The main cylinder (100) includes a first sleeve (110), a second sleeve (120), and a third sleeve (130) connected in sequence. One end of the first sleeve (110) is the closed end (101), and an air inlet window (103) is opened on the cylinder wall of the first sleeve (110). An air outlet window (104) is opened on the cylinder wall of the second sleeve (120). One end of the third sleeve (130) is the open end (102). A first rubber-coated clip (240) is sandwiched between the first sleeve (110) and the second sleeve (120), and a second rubber-coated clip (250) is sandwiched between the second sleeve (120) and the third sleeve (130).

3. The sleeve valve according to claim 2, characterized in that, The valve block (210) is located inside the first sleeve (110). The valve block (210) is provided with a first sealing surface (201). The first sealing surface (201) is used to press and seal the inner cavity space of the first sleeve (110) with the first rubber-coated clip (240).

4. The sleeve valve according to claim 2, characterized in that, The valve block (210) is located inside the second sleeve (120). The valve block (210) is divided into a first valve block (211) and a second valve block (212). The first valve block (211) is provided with a second sealing surface (202), and the second valve block (212) is provided with a third sealing surface (203). The second sealing surface (202) is used to press against the first rubber-coated clip (240), and the third sealing surface (203) is used to press against the second rubber-coated clip (250).

5. The sleeve valve according to claim 2, characterized in that, The other end of the first sleeve (110) is a first connecting end (111), which is connected to the second sleeve (120); the second sleeve (120) has two second connecting ends (121). The other end of the third sleeve (130) is the third connecting end (131), and the two second connecting ends (121) are respectively connected to the first connecting end (111) and the third connecting end (131).

6. The sleeve valve according to claim 5, characterized in that, The first connecting end (111), the second connecting end (121), and the third connecting end (131) all have recessed positions (105), and the first rubber-coated clip (240) and the second rubber-coated clip (250) are respectively clamped between adjacent recessed positions (105).

7. The sleeve valve according to claim 6, characterized in that, A first sealing ring (400) is clamped between the first connecting end (111) and the second connecting end (121), and between the second connecting end (121) and the third connecting end (131). The two first sealing rings (400) are respectively fitted on the outside of the first rubber-coated clip (240) and the second rubber-coated clip (250).

8. The sleeve valve according to claim 2, characterized in that, The closed end (101) is provided with a mounting hole (112); the closed end (101) is provided with an inner protrusion (113), the inner protrusion (113) is located in the inner cavity of the first sleeve (110), the inner protrusion (113) has a through shaft hole (114), the shaft hole (114) communicates with the mounting hole (112), the diameter of the mounting hole (112) is larger than the diameter of the shaft hole (114), the valve shaft (200) is inserted into the shaft hole (114), the tail end of the valve shaft (200) is equipped with a screw (500), the screw (500) is located in the mounting hole (112), the nut diameter of the screw (500) is smaller than the diameter of the mounting hole (112), and the nut diameter of the screw (500) is larger than the diameter of the shaft hole (114).

9. The sleeve valve according to claim 2, characterized in that, The valve core (300) is located inside the third sleeve (130), and a spring (600) is fitted on the valve core (300). The two ends of the spring (600) are in close contact with the valve core (300) and the second rubber-coated clip (250), respectively.

10. The sleeve valve according to claim 9, characterized in that, The valve core (300) is fitted with a second sealing ring (700), which contacts the inner wall of the third sleeve (130).

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