Two-way moving valve drive device

Abstract

The present invention discloses a two-way movable valve member driving device, comprising: a main body, having two air chambers inside, a first air inlet and a first air inlet channel, a second air inlet and a second air inlet channel; a first piston rod having a first flow channel, and a second piston rod having a second flow channel; a first guide rod extending into the first flow channel with one end, and having an air groove and an air hole connected to the air groove; a second guide rod extending into the second flow channel with one end, and having an air guide flow channel; a valve cylinder, fixedly arranged on the first piston rod, having a valve cylinder air chamber, a push channel, a retract channel and a valve cylinder piston rod; and a valve member, fixedly arranged on the valve cylinder piston rod.

Description

Technical Field

[0001] The present invention relates to a gate valve, and in particular to a two-way movable valve member driving device. Background Art

[0002] Patent No. I503914 of Taiwan Province of China discloses a bidirectional gate valve, which mainly utilizes a first driving unit to operate a first operating body, or utilizes a second driving unit to operate a second operating body, so as to cause its push-pull module to move leftward or rightward, thereby enabling the first sealing plate or the second sealing plate to selectively seal the two inlets.

[0003] The main technical feature of the above case is that, in addition to the use of an air cylinder at the bottom, the push-pull module connected to the piston rod of the air cylinder also uses a first operating body and a second operating body similar to a crank arm. This is a technology that moves the sealing plate between the two inlets to one side with a selective mechanism to seal one of the inlets.

[0004] As can be seen from the above, the mechanism of the technology in this case is relatively complex, with many parts, difficult to assemble and prone to precision problems. In addition, the movement of the sealing plate also needs to rely on, for example, the first operating body, the rotating shaft and the first and second sealing plates to produce an eccentric side movement state after rotation, so that the sealing plate can selectively seal the two inlets to the left or right. This action method is relatively complex and has low accuracy. Summary of the invention

[0005] The main purpose of the present invention is to provide a two-way movable valve driving device, which has a more simplified number of parts compared to the prior art, and the action of driving the valve is simple and has higher precision.

[0006] Based on the above-mentioned purpose, the present invention proposes a two-way movable valve member driving device, comprising: a main body, having two air chambers that are not connected to each other, a first air inlet and a first air inlet channel arranged on the main body, the first air inlet is connected to the outside world, and is respectively connected to the two air chambers through the first air inlet channel; a second air inlet and a second air inlet channel arranged on the main body, the second air inlet is connected to the outside world, and is respectively connected to the two air chambers through the second air inlet channel; a first piston rod and a second piston rod, both of which are telescopically arranged on the main body, and both of which have a piston at one end and are respectively located in the two air chambers, and both of which are partially exposed from the main body and are driven to be in an ejection position and a The first piston rod has a first flow channel extending in the axial direction, and the second piston rod has a second flow channel extending in the axial direction; a first guide rod and a second guide rod are fixed to the main body and are respectively located in the two air chambers, the first guide rod extends into the first flow channel of the first piston rod with one end, and the aforementioned extending end of the first guide rod has an air groove recessed in the axial direction and connected to the first flow channel, and the side surface of the rod body of the first guide rod is provided with an air hole, when the first piston rod is located in the pushing position, the air hole is exposed outside the first piston rod and connects the air groove with the air chamber where the first guide rod is located, and when the first piston rod is located in the retracted position, the air hole is located in the first flow channel; The second guide rod extends into the second flow channel of the second piston rod with one end, and the second guide rod has a guide flow channel, and the two ends of the guide flow channel are respectively connected to the second air inlet and the second flow channel; a valve cylinder is fixedly arranged on the first piston rod and the part of the second piston rod exposed from the main body, the valve cylinder has a valve cylinder air chamber, and has a propulsion channel respectively connected to the valve cylinder air chamber and the first flow channel of the first piston rod, and has a retreat channel respectively connected to the valve cylinder air chamber and the second flow channel of the second piston rod; a valve cylinder piston rod is telescopically arranged in the valve cylinder and partially exposed from the valve cylinder, and has a valve cylinder piston at one end located in the valve cylinder air chamber, and the telescopic direction of the valve cylinder piston rod is the same as that of the first piston rod. The telescopic directions of the first guide rod are arranged at a predetermined angle; and a valve member is fixedly arranged on the portion of the valve cylinder piston rod exposed from the valve cylinder; wherein the position where the first air inlet passage is connected to the two air chambers corresponds to one end of the two pistons, and the position where the second air inlet passage is connected to the two air chambers corresponds to the other end of the two pistons, and when the gas enters the two air chambers from the first air inlet, the first piston rod and the second piston rod are pushed to the push-out position; wherein the position where the propulsion passage is connected to the valve cylinder air chamber corresponds to one end of the valve cylinder piston, and the position where the retraction passage is connected to the valve cylinder air chamber corresponds to the other end of the valve cylinder piston, and when the gas enters the valve cylinder air chamber from the propulsion passage, the valve cylinder piston rod is pushed outward.

[0007] Thus, compared with the prior art, the present invention has a more streamlined number of parts, is easier to assemble, and has a simple action to drive the valve component with higher precision.

[0008] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a combined stereogram of the first preferred embodiment of the present invention.

[0010] Figure 2 is along Figure 1 Sectional view along line 2-2.

[0011] Figure 3 yes Figure 2 Front view of.

[0012] Figure 4 is along Figure 3 Sectional view along line 4-4.

[0013] Figure 5 is along Figure 4 Sectional view along line 5-5.

[0014] Figure 6 is along Figure 5 Sectional view along line 6-6.

[0015] Figure 7 is along Figure 6 Sectional view along line 7-7.

[0016] Figure 8 is along Figure 5 Sectional view along line 8-8.

[0017] Fig. 9 is along Figure 5 Sectional view along line 9-9.

[0018] Fig.10 It is an action schematic diagram of a preferred embodiment of the present invention.

[0019] Fig.11 It is a schematic assembly diagram of a preferred embodiment of the present invention.

[0020] Fig.12 It is a schematic diagram of the action of a preferred embodiment of the present invention in an assembled state.

[0021] Fig.13 It is another action schematic diagram of a preferred embodiment of the present invention in an assembled state.

[0022] Among them, the reference numerals

[0023] 10: Two-way moving valve drive device

[0024] 11: Main body

[0025] 12: Air Chamber

[0026] 13: First air inlet

[0027] 14: First air intake channel

[0028] 17: Second air inlet

[0029] 18: Second air intake channel

[0030] 21: First piston rod

[0031] 211: Pistons

[0032] 22: First runner

[0033] 25: Second piston rod

[0034] 251: Piston

[0035] 26: Second flow channel

[0036] 31: First guide rod

[0037] 32: Air tank

[0038] 33: Stoma

[0039] 35: Second guide rod

[0040] 36: Airflow channel

[0041] 41: Valve cylinder

[0042] 42: Valve cylinder air chamber

[0043] 43: Advancement Channel

[0044] 44: Return channel

[0045] 45: Valve cylinder piston rod

[0046] 46: Valve cylinder piston

[0047] 49: valve parts

[0048] 51: Air nozzle

[0049] 91: Valve port DETAILED DESCRIPTION

[0050] The following will describe in detail various embodiments of the present invention, and will be illustrated with drawings. In addition to these detailed descriptions, the present invention can also be widely implemented in other embodiments, and any easy replacement, modification, and equivalent changes of the embodiments are included in the scope of the present invention and are subject to the scope of the patent application. In the description of the specification, many specific details are provided to enable the reader to have a more complete understanding of the present invention; however, the present invention may still be implemented on the premise of omitting some or all of the specific details. In addition, well-known steps or components are not described in detail to avoid unnecessary limitations on the present invention. The same or similar components in the drawings will be represented by the same or similar symbols. It should be noted that the drawings are for illustration only and do not represent the actual size or quantity of the components. Some details may not be fully drawn to simplify the drawings.

[0051] like Figures 1 to 10 As shown, a two-way movable valve member driving device 10 proposed in a preferred embodiment of the present invention is mainly composed of a main body 11, a first piston rod 21, a second piston rod 25, a first guide rod 31, a second guide rod 35, a valve cylinder 41, a three-valve cylinder piston rod 45 and a valve member 49, wherein:

[0052] The main body 11 has two air chambers 12 that are not connected to each other. A first air inlet 13 and a first air inlet channel 14 are provided in the main body 11. The first air inlet 13 is connected to the outside world and is connected to the two air chambers 12 through the first air inlet channel. The main body 11 is also provided with a second air inlet 17 and a second air inlet channel 18. The second air inlet 17 is connected to the outside world and is connected to the two air chambers 12 through the second air inlet channel 18.

[0053] The first piston rod 21 and the second piston rod 25 are both telescopically disposed on the main body 11, and both have a piston 211, 251 at one end thereof and are respectively located in the two air chambers 12, and both are partially exposed from the main body 11 and are driven to a push-out position ( Fig.10 is the position of rising to the top) and a retracted position ( Figure 3 The first piston rod 21 has a first flow passage 22 extending axially therethrough, and the second piston rod 25 has a second flow passage 26 extending axially therethrough.

[0054] The first guide rod 31 and the second guide rod 35 are fixedly mounted on the main body 11 and are respectively located in the two air chambers 12. The first guide rod 31 extends into the first flow channel 22 of the first piston rod 21 with one end, and the aforementioned extending end of the first guide rod 31 has an air groove 32 which is axially recessed and communicated with the first flow channel 22. The side surface of the rod body of the first guide rod 31 is provided with an air hole 33. When the first piston rod 21 is located at the pushing position, the air hole 33 is exposed outside the first piston rod 21 and connects the air groove 32 with the air chamber 12 where the first guide rod 31 is located. When the first piston rod 21 is located at the retracted position, the air hole 33 is located in the first flow channel 22. The second guide rod 35 extends into the second flow channel 26 of the second piston rod 25 at one end. The second guide rod 35 has a flow channel 36. The two ends of the flow channel 36 are respectively connected to the second air inlet 17 and the second flow channel 26. The position of the air hole 33 can be designed in actual design so that when the first piston rod 21 is located at the push-out position, the air hole 33 is just exposed outside the first piston rod 21, so as to ensure that the gas can enter the air hole 33 only when the first piston rod 21 is actually moved to the push-out position.

[0055] The valve cylinder 41 is fixed to the first piston rod 21 and the second piston rod 25 exposed from the main body 11, and in this embodiment, is arranged at the ends of the first piston rod 21 and the second piston rod 25. The valve cylinder 41 has three valve cylinder air chambers 42, and a push channel 43 respectively connected to each of the valve cylinder air chambers 42 and the first flow channel 22 of the first piston rod 21, and a retract channel 44 respectively connected to each of the valve cylinder air chambers 42 and the second flow channel 26 of the second piston rod 25.

[0056] The three-valve cylinder piston rod 45 is telescopically disposed in the valve cylinder 41 and partially exposed from the valve cylinder 41, and one end of each valve cylinder piston rod 45 has a valve cylinder piston 46 and is respectively located in each valve cylinder air chamber 42. The telescopic direction of the three-valve cylinder piston rod 45 and the telescopic direction of the first piston rod 21 and the second piston rod 25 form an angle, which is vertical to the telescopic direction of the first piston rod 21 and the second piston rod 25 in this embodiment, and the angle is 90 degrees.

[0057] The valve member 49 is fixedly mounted on the portion of the three-valve cylinder piston rod 45 exposed from the valve cylinder 41 , and in this embodiment, is mounted on the end of the three-valve cylinder piston rod 45 .

[0058] Among them, the position where the first air intake channel 14 is connected to the two air chambers 12 corresponds to one end of the two pistons 211, 251, and the position where the second air intake channel 18 is connected to the two air chambers 12 corresponds to the other end of the two pistons 211, 251. When the gas enters the two air chambers 12 from the first air intake port 13, the first piston rod 21 and the second piston rod 25 are pushed to the push-out position. When the gas enters the two air chambers 12 from the second air intake port 17, the first piston rod 21 and the second piston rod 25 are pushed to the retracted position. In addition, the propulsion channel 43 is connected to the position of each valve cylinder air chamber 42, which corresponds to one end of each valve cylinder piston 46, and the retraction channel 44 is connected to the position of each valve cylinder air chamber 42, which corresponds to the other end of each valve cylinder piston 46. When the gas enters each valve cylinder air chamber 42 through the propulsion channel 43, the valve cylinder piston rod 45 is pushed outward. When the gas enters each valve cylinder air chamber 42 through the retraction channel 44, the valve cylinder piston rod 45 is pushed back to a retracted state.

[0059] In actual implementation, the first air inlet 13 and the second air inlet 17 may be respectively provided with a gas nozzle 51 to facilitate connection with an external gas source (not shown).

[0060] The above describes the architecture of this embodiment. Next, the operation of this embodiment will be described.

[0061] like Fig.11 As shown, before use, the present invention is first installed beside a valve port 91. When not in operation, the first piston rod 21 and the second piston rod 25 are both in the retracted position, and the valve cylinder piston rod 45 is also in the retracted state. At this time, the valve member 49 is in the lowest position and in the retracted state. The valve port 91 is in an unsealed state.

[0062] like Figure 3 As shown, when the valve port 91 is to be closed, the closing operation is performed, which allows the gas to enter the first air inlet 13 from the air nozzle 51 and then enter the second air chamber 12. The first piston rod 21 and the second piston rod 25 are pushed to move to the push-out position. At this time, the valve cylinder 41 moves with the first piston rod 21 and the second piston rod 25. However, since the air hole 33 of the first guide rod 31 has not yet been exposed to the air chamber 12 where the first guide rod 31 is located, the gas will not enter the air hole 33. When the first piston rod 21 is continuously pushed and moves to the push-out position, its state is as shown in FIG. Fig.10 and Fig.12 As shown. Fig.10 and Figure 5As shown in FIG. 1 , when the first piston rod 21 moves to the push-out position, the air hole 33 is exposed outside the first piston rod 21, and the gas in the air chamber 12 where the air hole 33 is located enters the air hole 33 and flows into the three-valve cylinder air chamber 42 through the air groove 32, the first flow channel 22 and the propulsion channel 43, thereby pushing the valve cylinder piston rod 45 outward and finally moving outward to the outermost position. At this time, the valve member 49 covers the valve port 91 to form a sealing effect, thereby forming a structure as shown in FIG. Fig.13 status.

[0063] like Fig.10 and Fig.13 As shown, when the valve member 49 is to be retracted, the retraction operation is performed, which allows the gas to enter the second air inlet 17 from another air nozzle 51, and then enter the second air chamber 12, and also enter the air guide channel 36 at the same time, and enter the three-valve cylinder air chamber 42 through the second flow channel 26 and the retraction channel 44, and then push the three-valve cylinder piston rod 45 back to the retracted position by the push of air pressure, and push the first piston rod 21 and the second piston rod 25 to the retracted position. In this way, the valve member 49 is retracted to the aforementioned position as shown in FIG. Figure 3 The unoperated position is shown.

[0064] In the above-mentioned action description, when performing the closing operation, the effect is that the first piston rod 21 and the second piston rod 25 first rise to the push-out position, and then the three-valve cylinder piston rod 45 extends. For the valve member 49, its dynamics are that the valve member 49 first rises and then moves horizontally to cover the valve port 91. When performing the retraction operation, the valve member 49 retracts and descends at the same time. Therefore, in terms of design, the smallest diameter portion on the path formed by the second air inlet 17 and the second air inlet channel 18 can be designed to be smaller in diameter than the smallest diameter portion on the path formed by the second air inlet 17, the air guide channel 36, the second flow channel 26 and the retraction channel 44. This design makes it difficult for gas to enter the second air inlet channel 18, but easier to enter the retraction channel 44, thereby ensuring that the gas will enter the retraction channel 44 first during the retraction operation, so that the three-valve cylinder piston rod 45 will first retract to a position where it cannot retract any further, and then the gas will reenter the second air inlet channel 18 to push the first piston rod 21 and the second piston rod 25 down, thereby causing the valve member 49 to produce the effect of first moving horizontally and then retracting. The present invention uses the gap between the air nozzle 51 and the second air inlet 17 as a smaller caliber portion, and directly connects the air nozzle 51 with the air guide channel 36 so that the caliber is larger than the gap between the air nozzle 51 and the second air inlet 17, forming the above-mentioned caliber relationship, so that the valve member 49 can be made to move horizontally and then retract before descending during the retraction operation.

[0065] In summary, the present invention utilizes the design of the gas flow channel to move the piston rod in two directions respectively, thereby causing the valve component 49 to move in two directions. Therefore, the present invention does not use multiple parts to produce rotation or displacement of the mechanism. Therefore, the present invention has a more streamlined number of parts compared to the prior art, and the present invention is simpler in the operation of driving the valve component 49. The present invention uses the telescopic movement of the piston rod on the air cylinder, so it has higher accuracy than the yaw or rotational movement of the mechanism.

[0066] It should be additionally explained that when the first air inlet 13 is inletting air, the second air inlet 17 can be used as an outlet, and vice versa, when the second air inlet 17 is inletting air, the first air inlet 13 can be used as an outlet. In addition, the provision of oil seals (or O-rings) for airtight function is a conventional technology, and therefore it is not necessary to explain it in this case, but only to show it in the drawings, but the location and method of the provision of these oil seals are not the focus of the application of this case, and cannot be used to limit the scope of the patent application of this case.

[0067] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A two-way moving valve drive device, characterized in that: Contains: A main body, having two air chambers which are not connected to each other, a first air inlet and a first air inlet passage are provided in the main body, the first air inlet is connected to the outside, and is connected to the two air chambers respectively through the first air inlet passage; a second air inlet and a second air inlet passage are provided in the main body, the second air inlet is connected to the outside, and is connected to the two air chambers through the second air inlet passage; A first piston rod and a second piston rod, both of which are telescopically disposed on the main body, and both of which have a piston at one end and are respectively located in the two air chambers, and both of which are partially exposed from the main body and are driven to move between an ejection position and a retracted position, wherein the first piston rod has a first flow channel penetrating along the axial direction, and the second piston rod has a second flow channel penetrating along the axial direction; A first guide rod and a second guide rod are fixedly arranged on the main body and are respectively located in the two air chambers. The first guide rod extends into the first flow channel of the first piston rod with one end, and the aforementioned extending end of the first guide rod has an air groove which is axially recessed and connected to the first flow channel. The side surface of the rod body of the first guide rod is provided with an air hole. When the first piston rod is located at the pushing position, the air hole is exposed outside the first piston rod and connects the air groove with the two air chambers where the first guide rod is located. When the first piston rod is located at the retracted position, the air hole is located in the first flow channel. The second guide rod extends into the second flow channel of the second piston rod with one end. The second guide rod has an air guide channel, and the two ends of the air guide channel are respectively connected to the second air inlet and the second flow channel. a valve cylinder, fixedly mounted on the first piston rod and the second piston rod exposed from the main body, the valve cylinder having a valve cylinder air chamber, a push channel respectively connected to the valve cylinder air chamber and the first flow channel of the first piston rod, and a retract channel respectively connected to the valve cylinder air chamber and the second flow channel of the second piston rod; A valve cylinder piston rod is telescopically disposed in the valve cylinder and partially exposed from the valve cylinder, and one end of the valve cylinder piston is located in the valve cylinder air chamber, and the telescopic direction of the valve cylinder piston rod and the telescopic direction of the first guide rod form a predetermined angle; and A valve member, fixed to the portion of the piston rod of the valve cylinder exposed from the valve cylinder; The first air inlet passage is connected to one end of the two air chambers, and the second air inlet passage is connected to the other end of the two air chambers. When the gas enters the two air chambers from the first air inlet, the first piston rod and the second piston rod are pushed to the ejection position. Among them, the position where the propulsion channel is connected to the valve cylinder air chamber corresponds to one end of the valve cylinder piston, and the position where the retraction channel is connected to the valve cylinder air chamber corresponds to the other end of the valve cylinder piston. When the gas enters the valve cylinder air chamber from the propulsion channel, the valve cylinder piston rod is pushed outward.

2. The two-way moving valve member driving device according to claim 1, characterized in that: The telescopic direction of the valve cylinder piston rod is perpendicular to the telescopic directions of the first piston rod and the second piston rod.

3. The two-way moving valve member driving device according to claim 1, characterized in that: The valve cylinder has a plurality of valve cylinder air chambers, and a plurality of valve cylinder piston rods are telescopically arranged in the valve cylinder respectively, the valve member is fixedly arranged on the parts of the plurality of valve cylinder piston rods exposed in the valve cylinder, and the retraction channel and the advancement channel are both connected to the plurality of valve cylinder air chambers.

4. The two-way moving valve member driving device according to claim 1, characterized in that: The smallest diameter portion on the path formed by the second air inlet and the second air inlet channel has a smaller diameter than the smallest diameter portion on the path formed by the second air inlet, the air guide channel, the second flow channel and the return channel.

5. The two-way moving valve member driving device according to claim 1, characterized in that: The first air inlet and the second air inlet are respectively provided with an air nozzle.

6. The two-way moving valve member driving device according to claim 5, characterized in that: The second air inlet, the air nozzle connected to the second air inlet and the smallest diameter portion on the path formed by the second air inlet and the second air inlet channel have a smaller diameter than the smallest diameter portion on the path formed by the second air inlet, the air nozzle connected to the second air inlet, the air guide channel, the second flow channel and the return channel.

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