Combined valve seat for a gas valve

Abstract

The utility model discloses a combined valve seat for air valve, including proportional valve, exhaust valve, valve plate, wherein proportional valve with exhaust valve can use the existing valve body structure, exhaust valve can be detachably installed on the top of valve plate respectively, then fix valve plate in the cabinet of equipment, has simplified the installation step, and simultaneously, the mutual parallelism of multiple valve plates is fixed, makes the gas supply pipe of subsequent layout keep neat, improves the neatness in the cabinet, reduces the maintenance time length, and simultaneously is equipped with the air inlet channel, exhaust channel, working gas channel, special exhaust channel in valve plate, the air inlet channel is communicated with the air inlet of proportional valve, and the exhaust channel is communicated with the exhaust port of proportional valve, and the working gas channel is communicated with the gas outlet of proportional valve, the air inlet channel is also communicated with the air inlet of exhaust valve, and the exhaust channel is communicated with the exhaust port of exhaust valve, thereby the number of air pipe use is reduced, and the pipeline is simplified, and it is convenient for subsequent repair and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of air valve technology, and in particular to a combined valve seat for air valves. Background Technology

[0002] Pneumatic components, such as cylinders, grippers, and pneumatic motors, are used in production equipment. These components are usually equipped with proportional valves and exhaust valves. The proportional valve is used to achieve continuous stepless control of the flow rate and pressure of the working air, while the exhaust valve is used to depressurize and vent the working air when special conditions occur in the equipment, so as to stop the pneumatic components from operating and protect the equipment and personnel.

[0003] Existing production equipment typically installs proportional valves and exhaust valves independently and connects them through pipelines. However, as the number of pneumatic components used in the equipment increases, the number of proportional valves and exhaust valves also increases, leading to cumbersome installation procedures. At the same time, the excessive number of connecting pipelines results in complex internal piping, causing inconvenience for subsequent maintenance and repair. Utility Model Content

[0004] 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 combined valve seat for a pneumatic valve, including a proportional valve, an exhaust valve, and a valve plate. The proportional valve and the exhaust valve are detachably mounted on the top of the valve plate. The valve plate has an inlet channel, an exhaust channel, a working air channel, and a special exhaust channel. The inlet channel communicates with the inlet of the proportional valve, the exhaust channel communicates with the exhaust port of the proportional valve, and the working air channel communicates with the outlet of the proportional valve. The inlet channel also communicates with the inlet of the exhaust valve, and the special exhaust channel communicates with the exhaust port of the exhaust valve.

[0005] According to some embodiments of this utility model, it also includes an exhaust regulating valve, which includes a valve body and a valve core. The valve core is installed in the valve body and moves up and down in the valve body. An installation hole communicating with the special exhaust channel is provided above the special exhaust channel. The valve body is fixedly installed in the installation hole, and the valve core is vertically inserted into the special exhaust channel.

[0006] According to some embodiments of this utility model, the valve body includes a valve stem and a valve seat disposed at the bottom of the valve stem. The housing of the exhaust valve has a first fixing hole, into which the valve stem is inserted. The valve core is installed inside the valve stem, and the valve seat is fixed within the mounting hole.

[0007] According to some embodiments of the present invention, the valve core includes a core rod portion and a valve needle portion disposed at the bottom of the core rod portion. The core rod portion is threadedly connected to the inner wall of the valve stem, and the valve needle portion is vertically inserted into the special exhaust channel.

[0008] According to some embodiments of the present invention, the exhaust valve includes an outer valve housing and an inner valve core. The inner valve core is installed inside the outer valve housing. A first opening and a second opening are sequentially opened on the side wall of the outer valve housing. The working gas in the intake channel enters the outer valve housing through the first opening, and the working gas in the outer valve housing enters the special exhaust channel through the second opening. The inner valve core is used to disconnect and connect the passage between the first opening and the second opening.

[0009] According to some embodiments of this utility model, the inner valve core includes a sleeve tube, a valve core rod, a valve block, and a piston block. The sleeve tube is horizontally installed inside the outer valve housing. The sleeve tube includes a closed end and an open end. An air inlet window and an air outlet window are sequentially opened on the side wall of the sleeve tube. The air inlet window communicates with the air inlet channel through the first opening, and the air outlet window communicates with the special exhaust channel through the second opening. The valve core rod is installed inside the sleeve tube, and the tail end of the valve core rod is movably inserted into the closed end. A valve block is provided on the valve core rod. The valve block is used to disconnect and connect the passage between the air inlet window and the air outlet window. The piston block is installed at the front end of the valve core rod, and the piston block is located inside the open end, pushing the valve core to move the valve core rod.

[0010] According to some embodiments of the present invention, a fixing rod is fixed on the valve plate, and a second fixing hole is provided on the housing of the exhaust valve, into which the fixing rod is inserted.

[0011] According to some embodiments of the present invention, the bottom of the proportional valve is provided with a fixing pin, and the top of the valve plate is provided with a socket, and the fixing pin is inserted into the socket.

[0012] According to some embodiments of the present invention, it also includes a gas supply knob switch, which is inserted into the working gas channel and is used to switch the working gas channel on and off.

[0013] According to some embodiments of the present invention, a pressure test connector is also included, wherein a test channel is branched off from the air intake channel, and the pressure test connector is inserted into the test channel.

[0014] The present invention has at least the following beneficial effects:

[0015] 1. By integrating the proportional valve and exhaust valve onto the valve plate and then fixing the valve plate in the equipment cabinet, the installation steps are simplified. At the same time, the parallel and fixed valve plates ensure that the subsequent air supply pipes are kept neat and improve the cleanliness of the cabinet. In addition, when the air supply pipe is damaged and leaks and needs to be replaced, the corresponding air supply pipe can be quickly located, reducing maintenance time.

[0016] 2. The valve plate is equipped with an air inlet channel, an air outlet channel, a working air channel, and a special air outlet channel. The air inlet channel is connected to the air inlet of the proportional valve, the air outlet channel is connected to the air outlet of the proportional valve, and the working air channel is connected to the air outlet of the proportional valve. The air inlet channel is also connected to the air inlet of the exhaust valve, and the air outlet channel is connected to the air outlet of the exhaust valve. This reduces the number of air pipes used and simplifies the piping, making subsequent maintenance and repair more convenient.

[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 a schematic diagram showing the combined state of the proportional valve, exhaust valve, and valve plate according to an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram showing the combined state of the proportional valve, exhaust valve, and valve plate according to an embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the left side of an embodiment of the present utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the AA section;

[0023] Figure 5 for Figure 4 Enlarged diagram of B in the middle;

[0024] Figure 6 This is a side view of the inner valve core according to an embodiment of the present utility model;

[0025] Figure 7 for Figure 6 Schematic diagram of CC in the middle;

[0026] Figure 8 This is a top view of the valve plate according to an embodiment of the present utility model;

[0027] Figure 9 for Figure 8 Schematic diagram of the DD section;

[0028] Figure 10 This is a schematic diagram of the proportional valve, valve plate, exhaust regulating valve, and fixing rod according to an embodiment of the present utility model;

[0029] Figure 11 This is a schematic diagram of the explosion of the exhaust valve according to an embodiment of the present utility model;

[0030] Figure 12 This is a top view of the proportional valve and valve plate assembly in an embodiment of the present utility model.

[0031] Figure 13 for Figure 12 Schematic diagram of the EE cross section;

[0032] Figure 14 for Figure 12 Schematic diagram of the FF section;

[0033] Figure 15 for Figure 12 Schematic diagram of the cross-section of GG in China;

[0034] Figure 16 for Figure 12 Schematic diagram of the HH cross section. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] Reference Figure 1 , 2 As shown in Figures 13 and 14, a combined valve seat for an air valve includes a proportional valve 100, an exhaust valve 200, and a valve plate 300. The proportional valve 100 and the exhaust valve 200 can both use the existing valve body 410 structure. The proportional valve 100 and the exhaust valve 200 are detachably mounted on the top of the valve plate 300, and the valve plate 300 is then fixed in the equipment cabinet, simplifying the installation steps. At the same time, multiple valve plates 300 are parallel to each other and fixed, keeping the subsequently laid air supply pipes neat and improving the cleanliness of the cabinet. In addition, when the air supply pipe is damaged and leaks and needs to be replaced, the corresponding air supply pipe can be quickly located, reducing maintenance time.

[0038] Meanwhile, the valve plate 300 is provided with an air intake channel 310, an exhaust channel 320, a working air channel 330, and a special exhaust channel 340. The air intake channel 310 is connected to the air intake port of the proportional valve 100, the exhaust channel 320 is connected to the exhaust port of the proportional valve 100, and the working air channel 330 is connected to the air outlet of the proportional valve 100. The air intake channel 310 is also connected to the air intake port of the exhaust valve 200, and the special exhaust channel 340 is connected to the exhaust port of the exhaust valve 200. This reduces the number of air pipes used and simplifies the pipeline, bringing convenience to subsequent maintenance and repair.

[0039] Reference Figures 2 to 5 As shown, an exhaust regulating valve 400 is also provided to adjust the exhaust speed. The exhaust regulating valve 400 includes a valve body 410 and a valve core 420. The valve core 420 is installed inside the valve body 410 and moves up and down within the valve body 410. A mounting hole 350 communicating with the special exhaust channel 340 is provided above it. The valve body 410 is fixedly installed in the mounting hole 350. The valve core 420 is vertically inserted into the special exhaust channel 340. The exhaust speed is adjusted by adjusting the depth of the valve core 420 inserted into the special exhaust channel 340.

[0040] That is, as the insertion depth of the valve core 420 gradually increases, the exhaust speed gradually slows down until the valve core 420 is fully inserted into the special exhaust channel 340, so that the special exhaust channel 340 is completely cut off and the exhaust stops.

[0041] Reference Figure 5 As shown, the valve body 410 includes a valve stem 411 and a valve seat 412 disposed at the bottom of the valve stem 411. The housing of the exhaust valve 200 is provided with a first fixing hole 201. The valve stem 411 is inserted into the first fixing hole 201, and the valve core 420 is installed in the valve stem 411. The valve seat 412 is fixed in the mounting hole 350, so that the exhaust regulating valve 400 is fixed on the valve plate 300.

[0042] The valve core 420 includes a core rod portion 421 and a valve needle portion 422 disposed at the bottom of the core rod portion 421. The core rod portion 421 is threadedly connected to the inner wall of the valve stem 411. The valve needle portion 422 is vertically inserted into the special exhaust channel 340. During operation, simply rotate the core rod portion 421 to make the core rod portion 421 rotate relative to the valve stem 411, thereby causing the valve core 420 to move up and down as a whole, thereby adjusting the depth of the valve needle portion 422 inserted into the special exhaust channel 340.

[0043] Reference Figures 5 to 7As shown, the exhaust valve 200 includes an outer valve housing 210 and an inner valve core 220. The inner valve core 220 is installed inside the outer valve housing 210. The side wall of the outer valve housing 210 has a first opening 211 and a second opening 212 in sequence. The working air in the intake passage 310 enters the outer valve housing 210 through the first opening 211, and the working air in the outer valve housing 210 enters the special exhaust passage 340 through the second opening 212.

[0044] When the inner valve core 220 disconnects the passage between the first opening 211 and the second opening 212, no venting is performed. However, when the inner valve core 220 connects the passage between the first opening 211 and the second opening 212, venting is performed.

[0045] Specifically, the inner valve core 220 includes a sleeve tube 221, a valve core rod 222, a valve block 223, and a piston block 224. The sleeve tube 221 is horizontally installed inside the outer valve housing 210. The sleeve tube 221 includes a closed end 2211 and an open end 2212. An air inlet window 2213 and an air outlet window 2214 are sequentially opened on the side wall of the sleeve tube 221. The air inlet window 2213 is connected to the air inlet channel 310 through the first opening 211, and the air outlet window 2214 is connected to the special exhaust channel 340 through the second opening 212.

[0046] In this embodiment, the sleeve 221 is bamboo-shaped, having a first section 22A, a second section 22B, and a third section 22C. The first section 22A has an open end 2212, and an air vent 2214 is formed on the side wall of the first section 22A.

[0047] An air intake window 2213 is provided on the side wall of the second section 22B. The valve block 223 is located in the space inside the second section 22B. The valve block 223 moves horizontally back and forth. When the valve block 223 moves towards the first section 22A and is blocked at the junction between the first section 22A and the second section 22B, the passage between the first section 22A and the second section 22B is disconnected, so that exhaust does not occur. When the valve block 223 moves towards the third section 22C, the closed state between the first section 22A and the second section 22B is released. The working air entering from the air intake channel 310 enters the inner cavity of the second section 22B through the air intake window 2213, then enters the inner cavity of the first section 22A from the inner cavity of the second section 22B, and then enters the special exhaust channel 340 through the air outlet window 2214 to complete the exhaust work.

[0048] The third section 22C is provided with a closed end 2211, which serves as the mounting position for the valve core rod 222.

[0049] Specifically, the valve core rod 222 is installed inside the sleeve tube 221, and the tail end of the valve core rod 222 is movably inserted into the closed end 2211. The valve core rod 222 is provided with a valve block 223, which is used to disconnect and connect the passage between the air inlet window 2213 and the air outlet window 2214. The piston block 224 is installed at the front end of the valve core rod 222, and the piston block 224 is located inside the open end 2212. Pushing the piston block 224 causes the valve core rod 222 to move, thereby realizing the horizontal reciprocating movement of the valve block 223.

[0050] In this embodiment, a return spring is installed between the tail end of the valve core rod 222 and the closed end 2211. After the piston block 224 is released from its push, the elastic force of the return spring pushes the valve core rod 222, causing the valve core rod 222 to move towards the open end 2212. This causes the valve block 223 to be tightly sealed at the junction between the first section 22A and the second section 22B and kept fixed, thereby preventing leakage of compressed gas during non-exhaust operation.

[0051] When the exhaust valve 200 is performing exhaust operation, the controller 203 on the exhaust valve 200 is activated, allowing control air to enter the control air passage. This control air pushes the open end 2212, which in turn pushes the piston block 224. The valve core rod 222 is moved by the piston block 224, compressing the return spring. The valve block 223 moves with the valve core rod 222, moving towards the third section 22C. This connects the first section 22A with the second section 22B, allowing the working air entering from the intake passage 310 to enter the inner cavity of the second section 22B through the intake window 2213. After entering the inner cavity of the first section 22A from the inner cavity of the second section 22B, the working air then enters the special exhaust passage 340 through the exhaust window 2214, completing the exhaust operation.

[0052] After the exhaust operation is completed, the controller 203 cuts off the control gas, the piston block 224 is released from its push, and the compressed return spring pushes the valve core rod 222, causing the valve block 223 to move towards the first section 22A. This causes the valve block 223 to be tightly sealed at the junction between the first section 22A and the second section 22B, thus breaking the passage between the first section 22A and the second section 22B. As a result, the working gas entering through the intake passage 310 cannot enter the inner cavity of the second section 22B through the intake window 2213, and then enter the inner cavity of the first section 22A from the inner cavity of the second section 22B. Thus, the exhaust valve 200 stops exhausting.

[0053] Reference Figure 10 As shown, a fixed exhaust valve 200 is fixed on a valve plate 300. A second fixing hole 202 is provided on the housing of the exhaust valve 200, and the fixing rod 360 is inserted into the second fixing hole 202.

[0054] Meanwhile, a first fixing hole 201 is provided on the housing of the exhaust valve 200, and a valve stem 411 is inserted into the first fixing hole 201 to further strengthen the fixing of the exhaust valve 200. The exhaust valve 200 is fixed by the exhaust regulating valve 400 and the fixing rod 360, so that the exhaust valve 200 is fixed on the valve plate 300 and will not shift.

[0055] Reference Figure 10 , 14 As shown, the proportional valve 100 has a fixing pin 110 at its bottom and a socket 370 at the top of the valve plate 300. When fixing the proportional valve 100 to the valve plate 300, simply insert the fixing pin 110 into the socket 370 to fix the proportional valve 100.

[0056] Reference Figure 15 , 16 As shown, in order to facilitate the switching on and off of the gas supply, a gas supply knob switch 500 is also provided. The gas supply knob switch 500 is inserted into the working gas channel 330 and is used to switch the working gas channel 330 on and off.

[0057] Reference Figure 2 , 9 As shown, to facilitate understanding of air pressure information, a pressure test connector 600 is also included. A test channel 311 branches off from the air inlet channel 310, and a pressure test connector 600 is inserted into the test channel 311. When the air pressure drops, it indicates that there is a leak in the existing pipeline and maintenance is required.

[0058] During use and installation, install the proportional valve 100 and the exhaust valve 200 on the valve plate 300 respectively, then fix the valve plate 300 in the equipment cabinet and connect the corresponding air lines.

[0059] During normal gas supply operation, the external gas supply device supplies gas, allowing the working gas to enter the proportional valve 100 through the air inlet channel 310. The proportional valve 100 then controls the gas supply volume and supplies gas to the pneumatic components. At this time, the exhaust valve 200 does not work.

[0060] When a pneumatic component malfunctions, the working air needs to be depressurized and vented to stop the pneumatic component from operating. At this time, the proportional valve 100 and the external air supply device stop supplying air. The working air in the proportional valve 100 and the pneumatic component is discharged through the exhaust channel 320, while the working air in the intake channel 310 is discharged through the exhaust valve 200. The exhaust speed of the special exhaust channel 340 is adjusted by the exhaust regulating valve 400.

[0061] When the exhaust valve 200 starts to work to exhaust and depressurize, the controller 203 on the exhaust valve 200 works, allowing control air to enter the control air passage, pushing the open end 2212, and pushing the piston block 224. The valve core rod 222 is pushed by the piston block 224 and moves, compressing the return spring. The valve block 223 moves with the valve core rod 222, moving towards the third section 22C, connecting the first section 22A and the second section 22B. The working air entering from the intake passage 310 enters the inner cavity of the second section 22B through the intake window 2213, then enters the inner cavity of the first section 22A from the inner cavity of the second section 22B, and finally enters the special exhaust passage 340 through the exhaust window 2214, completing the exhaust work and completely expelling the working air in the intake passage 310.

[0062] 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.

[0063] 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 combined valve seat for a pneumatic valve, comprising a proportional valve (100) and an exhaust valve (200), characterized in that, It also includes a valve plate (300), wherein the proportional valve (100) and the exhaust valve (200) are respectively detachably mounted on the top of the valve plate (300); The valve plate (300) is provided with an air intake channel (310), an exhaust channel (320), a working air channel (330), and a special exhaust channel (340). The air intake channel (310) is connected to the air intake port of the proportional valve (100), the exhaust channel (320) is connected to the exhaust port of the proportional valve (100), and the working air channel (330) is connected to the air outlet of the proportional valve (100). The air intake passage (310) is also connected to the air intake port of the exhaust valve (200), and the special exhaust passage (340) is connected to the exhaust port of the exhaust valve (200).

2. The combined valve seat for a pneumatic valve according to claim 1, characterized in that, It also includes an exhaust regulating valve (400), which includes a valve body (410) and a valve core (420). The valve core (420) is installed inside the valve body (410) and moves up and down inside the valve body (410). The special exhaust channel (340) is provided with a mounting hole (350) communicating with it above. The valve body (410) is fixedly installed in the mounting hole (350) and the valve core (420) is vertically inserted into the special exhaust channel (340).

3. The combined valve seat for a pneumatic valve according to claim 2, characterized in that, The valve body (410) includes a valve stem (411) and a valve seat (412) disposed at the bottom of the valve stem (411). The housing of the exhaust valve (200) is provided with a first fixing hole (201). The valve stem (411) is inserted into the first fixing hole (201). The valve core (420) is installed in the valve stem (411). The valve seat (412) is fixed in the mounting hole (350).

4. The combined valve seat for a pneumatic valve according to claim 3, characterized in that, The valve core (420) includes a core rod portion (421) and a valve needle portion (422) disposed at the bottom of the core rod portion (421). The core rod portion (421) is threadedly connected to the inner wall of the valve stem (411), and the valve needle portion (422) is vertically inserted into the special exhaust channel (340).

5. The combined valve seat for a pneumatic valve according to claim 1, characterized in that, The exhaust valve (200) includes an outer valve housing (210) and an inner valve core (220). The inner valve core (220) is installed inside the outer valve housing (210). The outer valve housing (210) has a first opening (211) and a second opening (212) on its side wall. The working air in the intake passage (310) enters the outer valve housing (210) through the first opening (211), and the working air in the outer valve housing (210) enters the special exhaust passage (340) through the second opening (212). The inner valve core (220) is used to disconnect and connect the passage between the first opening (211) and the second opening (212).

6. The combined valve seat for a pneumatic valve according to claim 5, characterized in that, The inner valve core (220) includes a sleeve (221), a valve core rod (222), a valve block (223), and a piston block (224). The sleeve (221) is horizontally installed inside the outer valve housing (210). The sleeve (221) includes a closed end (2211) and an open end (2212). An air inlet window (2213) and an air outlet window (2214) are sequentially opened on the side wall of the sleeve (221). The air inlet window (2213) is connected to the air inlet channel (310) through the first opening (211), and the air outlet window (2214) is connected to the special exhaust channel (340) through the second opening (212). The valve core rod (222) is installed inside the sleeve tube (221), and the tail end of the valve core rod (222) is movably inserted into the closed end (2211). The valve core rod (222) is provided with a valve block (223), which is used to disconnect and connect the passage between the air inlet window (2213) and the air outlet window (2214). The piston block (224) is installed at the front end of the valve core rod (222), and the piston block (224) is located inside the open end (2212). Pushing the piston block (224) causes the valve core rod (222) to move.

7. The combined valve seat for a pneumatic valve according to claim 1, characterized in that, A fixing rod (360) is fixed on the valve plate (300), and a second fixing hole (202) is provided on the housing of the exhaust valve (200), in which the fixing rod (360) is inserted.

8. The combined valve seat for a pneumatic valve according to claim 1, characterized in that, The bottom of the proportional valve (100) is provided with a fixed pin (110), and the top of the valve plate (300) is provided with a socket (370), and the fixed pin (110) is inserted into the socket (370).

9. The combined valve seat for a pneumatic valve according to claim 1, characterized in that, It also includes a gas supply knob switch (500), which is inserted into the working gas passage (330) and is used to switch the working gas passage (330) on and off.

10. The combined valve seat for a pneumatic valve according to claim 1, characterized in that, It also includes a pressure test connector (600), and a test channel (311) branches out from the air intake channel (310), and the pressure test connector (600) is inserted into the test channel (311).

Images