Improved valve interlocking device

Abstract

The utility model relates to the technical field of switch cabinet safety protection, in particular to a valve interlocking improved device which comprises a partition plate, a tension spring, an interlocking plate, a sliding plate and a driving rod, the tension spring is fastened to the bottom of the partition plate through a first positioning plate, the first positioning plate is arranged at the bottom of the partition plate, and the end, away from the first positioning plate, of the tension spring is connected with the interlocking plate; the interlocking plate is rotationally mounted on the partition plate through the second positioning plate; the end, away from the tension spring, of the interlocking plate is connected with the sliding plate. The interlocking plate drives the sliding plate to slide in the vertical direction in the rotating process. The end, away from the interlocking plate, of the sliding plate is connected with a driving rod, and the top of the driving rod is provided with a roller. A driving connecting rod is arranged on the roller, one end of the driving connecting rod is connected with the roller, the other end of the driving connecting rod is connected with a crank arm, and a reset spring is arranged on the crank arm; one end of the crank arm away from the driving connecting rod is connected with the lower valve through a valve connecting rod. The purpose of the utility model is to improve the safety of the valve switch cabinet in the use process.

Description

Technical Field

[0001] The present application relates to the technical field of switch cabinet safety protection, and in particular to an improved device for valve interlocking. Background Art

[0002] Switchgear is an important electrical equipment, which is mainly used to open and close, control and protect electrical equipment in the power generation, transmission, distribution and energy conversion processes of the power system.

[0003] In related technologies, the valve opening mechanism relies on a return spring and the weight of the upper valve to maintain its closed state. In the absence of external forces, the return spring can keep the valve securely closed, providing adequate safety protection. However, since the valve is closed only by the return spring, it can be easily opened by external forces, posing a safety hazard of direct contact with live objects. Furthermore, during transportation, bumpy road conditions can cause the upper valve to move up and down. This frequent up and down movement can lead to chain wear and breakage, resulting in functional failures during operation and accidents. Utility Model Content

[0004] The present application provides an improved valve interlocking device, the purpose of which is to further increase the stability of the valve when it is in a closed state, so that it maintains sufficient stability in the closed state and is not easily affected by external forces, thereby effectively improving the safety of the valve during use.

[0005] This application provides an improved valve interlocking device, which adopts the following technical solutions:

[0006] An improved valve interlocking device comprises a partition, a tension spring, an interlocking plate, a slide plate and a driving rod, wherein the tension spring is fastened to the bottom of the partition via a first positioning plate, the first positioning plate being arranged at the bottom of the partition, the end of the tension spring away from the first positioning plate being connected to the interlocking plate, the interlocking plate being rotatably mounted on the partition via a second positioning plate; the end of the interlocking plate away from the tension spring being connected to the slide plate, and the interlocking plate driving the slide plate to slide in a vertical direction during rotation;

[0007] The end of the slide away from the interlocking plate is connected to the driving rod, a roller is installed on the top of the driving rod, and the top of the interlocking plate is connected to the roller; a driving connecting rod is installed on the roller, one end of the driving connecting rod is connected to the roller, and the other end of the driving connecting rod is connected to the crank arm, and a return spring is installed on the crank arm; the end of the crank arm away from the driving connecting rod is connected to the lower valve through the valve connecting rod, and the lower valve and the upper valve are connected by corresponding chains.

[0008] By adopting the above technical solution, this setting mode, the opening and closing of the lower valve and the upper valve is to add a partition, a tension spring, an interlocking plate, a slide plate and a driving rod and other locking devices between the drive connecting rod, the return spring and the valve connecting rod. When the lower valve and the upper valve are in a closed state and are to be opened, it is necessary to first trigger the partition, the tension spring, the interlocking plate, the slide plate and the driving rod and other locking devices before the partition, the tension spring, the interlocking plate, the slide plate and the driving rod and other locking devices can be transmitted to the driving connecting rod, the return spring and the valve connecting rod through the partition, the tension spring, the interlocking plate, the slide plate and the driving rod and other locking devices. This makes the partition, the tension spring, the interlocking plate, the slide plate and the driving rod and other locking devices play a transition buffering role when the lower valve and the upper valve are opened, thereby making it difficult for external forces to directly act on the driving connecting rod, the return spring and the valve connecting rod, which is conducive to further increasing the stability of the valve when it is in a closed state, so that it maintains sufficient stability in the closed state and is not easily affected by external forces, thereby effectively improving the safety of the valve during use.

[0009] Preferably, a first insertion hole for the interlocking plate to be inserted is opened on the top of the partition along its width direction, and the bottom of the interlocking plate is inserted into the bottom of the partition through the first insertion hole and connected to the end of the tension spring.

[0010] By adopting the above technical solution, the interlocking plate and the tension spring are conveniently connected by utilizing the first insertion hole, which is beneficial to improving the convenience of assembling the device and improving the assembly efficiency.

[0011] Preferably, second positioning plates are installed on the left and right sides of the bottom of the partition in the vertical direction, and the interlocking plate is rotatably installed between the two second positioning plates;

[0012] The side wall of the second positioning plate and the top of the partition plate are both provided with a first mounting hole.

[0013] By adopting the above technical solution, specifically when installing the second positioning plate on the bottom of the partition, align the first mounting hole on the second positioning plate with the first mounting hole on the top of the partition, and then insert rivets into the aligned first mounting holes to fasten the second positioning plate to the partition.

[0014] Preferably, a positioning pin is inserted between the interlocking plate and the two second positioning plates, and the interlocking plate rotates along the positioning pin;

[0015] The side walls of the interlocking plate and the two second positioning plates are each provided with a second mounting hole for the positioning pin to pass through. The positioning pin is inserted into the second mounting holes of the interlocking plate and the two second positioning plates to connect the interlocking plate and the two second positioning plates.

[0016] By adopting the above technical solution, the interlocking plate and the two second positioning plates are connected by using the positioning pins, so that the interlocking plate can stably rotate around the positioning pins.

[0017] Preferably, a plurality of third mounting holes are provided on the side walls of the first positioning plate and the top of the partition, and a part of the plurality of third mounting holes on the top of the partition are used to be connected with the third mounting holes of the first positioning plate by bolts, and another part of the third mounting holes are used to adjust the installation position of the first positioning plate on the partition.

[0018] By adopting the above technical solution and utilizing the multiple third mounting holes on the top of the partition, the installation position of the first positioning plate on the partition is made more flexible.

[0019] Preferably, a waist-shaped hole is provided on the side wall of the skateboard, and the driving rod is fixed to the left and right guide rails of the trolley through a third positioning plate. A threaded hole is provided on the third positioning plate, and a positioning screw is inserted between the waist-shaped hole and the threaded hole. The positioning screw passes through the long waist hole and is screwed into the threaded hole.

[0020] By adopting the above technical solution, the slide plate is positioned forward and backward by using the positioning screws, and the slide plate can slide vertically up and down within the range of the long waist hole along the positioning screws.

[0021] Preferably, the driving rod is inserted into the axle pin on the third positioning plate through a sleeve, the end face of the interlocking plate is placed in the groove of the slide plate, and one end of the tension spring is pulled into the first connecting hole of the interlocking plate, and the other end of the tension spring is pulled into the second connecting hole on the first positioning plate.

[0022] By adopting the above technical solution, the first connecting hole and the second connecting hole are utilized to effectively improve the stability of the tension spring between the interlocking plate and the first positioning plate.

[0023] Preferably, the positioning screw on the driving rod is engaged in a notch on the slide.

[0024] By adopting the above technical solution, in this state, the interlock plate is subjected to a downward force due to the force of the tension spring, causing it to rotate along the positioning pin. The end face of the interlock plate rotates along the positioning pin 5, pushing the slide plate upward. The slide plate moves upward along the positioning screw until the bottom edge of the long waist hole on the slide plate presses against the positioning screw. At this time, the positioning screw on the drive rod falls into the notch on the slide plate. Since the positioning screw on the drive rod is attached to the drive rod, the drive rod cannot move unless the slide plate falls. Therefore, the valve is locked and cannot be opened.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The opening and closing of the lower valve and the upper valve is achieved by adding locking devices such as a partition, a tension spring, an interlocking plate, a slide plate and a driving rod between the drive connecting rod, the return spring and the valve connecting rod. When the lower valve and the upper valve are in a closed state and are to be opened, the partition, the tension spring, the interlocking plate, the slide plate and the driving rod and other locking devices need to be triggered first before they can be transmitted to the driving connecting rod, the return spring and the valve connecting rod through the partition, the tension spring, the interlocking plate, the slide plate and the driving rod and other locking devices. This allows the partition, the tension spring, the interlocking plate, the slide plate and the driving rod and other locking devices to act as a transition buffer when the lower valve and the upper valve are opened, thereby preventing external forces from directly acting on the drive connecting rod, the return spring and the valve connecting rod, which is beneficial to further increase the stability of the valve when it is in a closed state, so that it maintains sufficient stability in the closed state and is not easily affected by external forces, thereby effectively improving the safety of the valve during use;

[0027] 2. The first jack facilitates connecting the interlocking plate to the tension spring, thereby improving the convenience and efficiency of assembling the device.

[0028] 3. In this state, the interlock plate is subjected to a downward force due to the tension spring, causing it to rotate along the positioning pin. The end face of the interlock plate rotates along positioning pin 5, pushing the slide plate upward. The slide plate ascends along the positioning screw until the bottom edge of the long waist hole on the slide plate presses against the positioning screw. At this point, the positioning screw on the drive rod falls into the notch on the slide plate. Since the positioning screw on the drive rod is attached to the drive rod, the drive rod cannot move unless the slide plate falls. Therefore, the valve is locked and cannot be opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0030] Figure 2 This is a structural diagram showing the positional relationship between the crank arm, the return spring, and the valve connecting rod in accordance with an embodiment of the present application;

[0031] Figure 3 This is a schematic diagram showing the structure of the partition in an embodiment of the present application;

[0032] Figure 4 It is a schematic diagram showing the specific shape and structure of the interlocking plate, the slide plate, the driving rod, the first positioning plate and the second positioning plate in an embodiment of the present application.

[0033] Figure markings: 1. partition; 2. tension spring; 3. interlocking plate; 4. slide plate; 5. driving rod; 6. first positioning plate; 7. second positioning plate; 8. roller; 9. driving connecting rod; 10. crank arm; 11. return spring; 12. valve connecting rod; 13. first plug hole; 14. first mounting hole; 15. positioning pin; 16. second mounting hole; 17. third mounting hole; 18. waist-shaped hole; 19. third positioning plate; 20. threaded hole; 21. positioning screw; 22. bushing; 23. shaft pin; 24. groove; 25. first connecting hole; 26. second connecting hole; 27. notch. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0035] Example:

[0036] The embodiment of the present application discloses an improved valve interlocking device, referring to Figure 1 and Figure 2 , including a partition 1, a tension spring 2, an interlocking plate 3, a slide plate 4, and a driving rod 5. The partition 1 is an "L"-shaped structure as a whole. The tension spring 2 is fastened to the bottom of the partition 1 through the first positioning plate 6. The first positioning plate 6 is vertically installed at the bottom of the partition 1 through the corresponding fastening bolts. The end of the tension spring 2 away from the first positioning plate 6 is connected to the interlocking plate 3, and the interlocking plate 3 is rotatably installed on the partition 1 through the second positioning plate 7. The end of the interlocking plate 3 away from the tension spring 2 is connected to the slide plate 4. During the rotation process, the interlocking plate 3 drives the slide plate 4 to slide in the vertical direction. The end of the slide plate 4 away from the interlocking plate 3 is connected to the driving rod 5. A roller 8 is installed on the top of the driving rod 5, and the top of the interlocking plate 3 is connected to the roller 8. At the same time, a driving connecting rod 9 is installed on the roller 8. One end of the driving connecting rod 9 is connected to the roller 8, and the other end of the driving connecting rod 9 is connected to the crank arm 10. The crank arm 10 is equipped with a return spring 11. At the same time, one end of the crank arm 10 away from the driving connecting rod 9 is connected to the lower valve through the valve connecting rod 12, and the lower valve and the upper valve are connected through the corresponding rollers 8 and chains.

[0037] Specifically, as the trolley for opening and closing the valves enters the partition 1, the bottom of the trolley first presses down on the interlocking plate 3, causing it to rotate. As the interlocking plate 3 rotates, the tension spring 2 stretches. Simultaneously, the interlocking plate 3 rotates, driving the slide 4 downward. As the slide 4 moves downward, the drive rod 5 is unlocked from its locked state. Once unlocked, the drive rod 5 drives the drive link 9 via the roller 8, which in turn drives the crank arm 10, which in turn drives the lower and upper valves to open.

[0038] When the trolley withdraws from the partition 1, the tension spring 2 gradually resets. During the resetting process, the tension spring 2 drives the interlocking plate 3 to reset, and then drives the driving rod 5 to reset through the interlocking plate 3. During the resetting process, the driving rod 5 drives the lower valve and the upper valve to close through the driving connecting rod 9, the crank arm 10 and the valve connecting rod 12.

[0039] In this setting, the opening and closing of the lower valve and the upper valve are achieved by adding locking devices such as a partition 1, a tension spring 2, an interlocking plate 3, a slide plate 4 and a driving rod 5 between the driving connecting rod 9, the return spring 11 and the valve connecting rod 12. When the lower valve and the upper valve are in a closed state and are to be opened, it is necessary to first trigger the locking devices such as the partition 1, the tension spring 2, the interlocking plate 3, the slide plate 4 and the driving rod 5 before they can be transmitted to the driving connecting rod 9, the return spring 11 and the valve connecting rod 12 through the locking devices such as the partition 1, the tension spring 2, the interlocking plate 3, the slide plate 4 and the driving rod 5. This allows the locking devices such as the partition 1, tension spring 2, interlocking plate 3, slide plate 4 and drive rod 5 to act as a transition buffer when the lower valve and the upper valve are opened, making it difficult for external forces to directly act on the drive connecting rod 9, return spring 11 and valve connecting rod 12, which is beneficial to further increase the stability of the valve when it is in the closed state, so that it maintains sufficient stability in the closed state and is not easily affected by external forces, thereby effectively improving the safety of the valve during use.

[0040] Specifically, refer to Figure 1 and Figure 3 The sidewall of the partition 1 is provided with a plurality of through-holes for securing the partition 1. A first insertion hole 13 for inserting the interlocking plate 3 is provided along the width of the top of the partition 1. The first insertion hole 13 is elongated. The bottom of the interlocking plate 3 is inserted through the first insertion hole 13 to connect with the end of the tension spring 2. The first insertion hole 13 facilitates connecting the interlocking plate 3 to the tension spring 2, thereby improving the convenience and efficiency of assembling the device.

[0041] Reference Figure 3 and Figure 4 The second positioning plates 7 are installed on the left and right sides of the bottom of the partition 1 in the vertical direction through fastening bolts, and the interlocking plate 3 is installed between the two second positioning plates 7. Since there is a gap between the left and right second positioning plates 7 that is larger than the thickness of the interlocking plate 3, the interlocking plate 3 can rotate between the two second positioning plates 7.

[0042] Specifically, refer to Figure 3 and Figure 4 , first mounting holes 14 are provided on the side walls of the second positioning plate 7 and on both sides of the first insertion hole 13 on the partition 1. Specifically, when the second positioning plate 7 is installed on the bottom of the partition 1, the first mounting hole 14 on the second positioning plate 7 is aligned with the first mounting hole 14 on the top of the partition 1, and then rivets are inserted into the aligned first mounting holes 14 to fasten the second positioning plate 7 to the partition 1.

[0043] After the interlocking plate 3 is installed between the two second positioning plates 7 , a positioning pin 15 is inserted between the interlocking plate 3 and the two second positioning plates 7 , and the interlocking plate 3 can rotate along the positioning pin 15 .

[0044] Specifically, refer to Figure 4 The side walls of the interlocking plate 3 and the two second positioning plates 7 are provided with second mounting holes 16 for the positioning pins 15 to pass through. The positioning pins 15 are inserted into the second mounting holes 16 of the interlocking plate 3 and the two second positioning plates 7 to connect the interlocking plate 3 and the two second positioning plates 7. After the positioning pins 15 are installed, their threaded ends are locked by locking nuts.

[0045] Specifically, refer to Figure 3 and Figure 4 The first positioning plate 6 has an overall "L"-shaped structure, with two third mounting holes 17 provided on the side wall on one side, and four third mounting holes 17 provided on the top of the partition 1 along its width direction. Two of the four third mounting holes 17 on the top of the partition 1 are used to be bolted to the two third mounting holes 17 of the first positioning plate 6, and the other two are used to adjust the installation position of the first positioning plate 6 on the partition 1, thereby making the installation position of the first positioning plate 6 on the partition 1 more flexible.

[0046] Specifically, refer to Figure 1 and Figure 4 The slide 4 is an L-shaped structure with waist-shaped holes 18 defined in its sidewalls. The drive rod 5 is welded to the left and right guide rails of the trolley via a third positioning plate 19. The third positioning plate 19 has threaded holes 20 defined in it. Positioning screws 21 are inserted between the waist-shaped holes 18 of the slide 4 and the threaded holes 20 of the third positioning plate 19. These screws pass through the long waist holes in the slide 4 and screw into the two threaded holes 20 in the third positioning plate 19. The positioning screws 21 position the bone plate forward and backward, allowing the slide 4 to slide vertically up and down within the confines of the long waist holes, along with the positioning screws 21.

[0047] A threaded through-hole is added to the side wall of the drive rod 5, into which a set screw 21 is screwed. The drive rod 5 is then tightened using the set screw 21. At this point, the drive rod 5, with the set screw 21 installed, is inserted through the shaft sleeve 22 into the shaft pin 23 on the third positioning plate 19 and positioned using a shaft circlip. The remaining components of the original valve mechanism are then sequentially installed on the drive rod 5. Finally, the end face of the interlocking plate 3 is placed into the groove 24 of the slide plate 4. One end of the tension spring 23 is pulled into the first connecting hole 25 of the interlocking plate 3, while the other end of the tension spring 2 is pulled into the second connecting hole 26 on the first positioning plate 6.

[0048] In this state, the interlock plate 3 is subjected to a downward force due to the force of the tension spring 2, causing it to rotate along the positioning pin 15. The end face of the interlock plate 3 rotates along the positioning pin 155, pushing the slide plate 4 upward. The slide plate 4 moves upward along the positioning screw 21 until the bottom edge of the long waist hole on the slide plate 4 presses against the positioning screw 21. At this time, the positioning screw 21 on the drive rod 5 falls into the notch 27 on the slide plate 4. Since the positioning screw 21 on the drive rod 5 is attached to the drive rod 5, the slide plate 4 cannot fall, and the drive rod 5 cannot move. Therefore, the valve is locked and cannot be opened.

[0049] The implementation principle of the improved valve interlocking device in the embodiment of the present application is as follows:

[0050] As the trolley for opening and closing the valves enters the partition 1, the bottom of the trolley first presses down on the interlocking plate 3, causing it to rotate. As the interlocking plate 3 rotates, the tension spring 2 stretches. Simultaneously, the interlocking plate 3 drives the slide 4 downward, unlocking the drive rod 5 from its locked state. Once unlocked, the drive rod 5 drives the drive connecting rod 9 via the roller 8, which in turn drives the crank arm 10, which in turn drives the lower and upper valves to open.

[0051] When the trolley withdraws from the partition 1, the tension spring 2 gradually resets. During the resetting process, the tension spring 2 drives the interlocking plate 3 to reset, and then drives the driving rod 5 to reset through the interlocking plate 3. During the resetting process, the driving rod 5 drives the lower valve and the upper valve to close through the driving connecting rod 9, the crank arm 10 and the valve connecting rod 12.

[0052] In this setting, the opening and closing of the lower valve and the upper valve are achieved by adding locking devices such as a partition 1, a tension spring 2, an interlocking plate 3, a slide plate 4 and a driving rod 5 between the driving connecting rod 9, the return spring 11 and the valve connecting rod 12. When the lower valve and the upper valve are in a closed state and are to be opened, it is necessary to first trigger the locking devices such as the partition 1, the tension spring 2, the interlocking plate 3, the slide plate 4 and the driving rod 5 before they can be transmitted to the driving connecting rod 9, the return spring 11 and the valve connecting rod 12 through the locking devices such as the partition 1, the tension spring 2, the interlocking plate 3, the slide plate 4 and the driving rod 5. This allows the locking devices such as the partition 1, tension spring 2, interlocking plate 3, slide plate 4 and drive rod 5 to act as a transition buffer when the lower valve and the upper valve are opened, making it difficult for external forces to directly act on the drive connecting rod 9, return spring 11 and valve connecting rod 12, which is beneficial to further increase the stability of the valve when it is in the closed state, so that it maintains sufficient stability in the closed state and is not easily affected by external forces, thereby effectively improving the safety of the valve during use.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An improved valve interlocking device, characterized in that: The utility model comprises a partition (1), a tension spring (2), an interlocking plate (3), a slide plate (4) and a driving rod (5), wherein the tension spring (2) is fastened to the bottom of the partition (1) through a first positioning plate (6), the first positioning plate (6) is arranged at the bottom of the partition (1), the end of the tension spring (2) away from the first positioning plate (6) is connected to the interlocking plate (3), and the interlocking plate (3) is rotatably mounted on the partition (1) through a second positioning plate (7); the end of the interlocking plate (3) away from the tension spring (2) is connected to the slide plate (4), and the interlocking plate (3) drives the slide plate (4) to slide in the vertical direction during the rotation process; The end of the slide plate (4) away from the interlocking plate (3) is connected to the driving rod (5), the top of the driving rod (5) is installed with a roller (8), and the top of the interlocking plate (3) is connected to the roller (8); a driving connecting rod (9) is installed on the roller (8), one end of the driving connecting rod (9) is connected to the roller (8), and the other end of the driving connecting rod (9) is connected to a crank arm (10), and a return spring (11) is installed on the crank arm (10); the end of the crank arm (10) away from the driving connecting rod (9) is connected to the lower valve through a valve connecting rod (12), and the lower valve and the upper valve are connected by a corresponding chain.

2. The improved valve interlocking device according to claim 1, characterized in that: The top of the partition (1) is provided with a first insertion hole (13) along its width direction for the interlocking plate (3) to be inserted therethrough, and the bottom of the interlocking plate (3) is inserted into the bottom of the partition (1) through the first insertion hole (13) and connected to the end of the tension spring (2).

3. The improved valve interlocking device according to claim 2, characterized in that: Second positioning plates (7) are installed on the left and right sides of the bottom of the partition (1) in the vertical direction, and the interlocking plate (3) is rotatably installed between the two second positioning plates (7); The side wall of the second positioning plate (7) and the top of the partition plate (1) are both provided with a first mounting hole (14).

4. The improved valve interlocking device according to claim 3, characterized in that: A positioning pin (15) is inserted between the interlocking plate (3) and the two second positioning plates (7), and the interlocking plate (3) rotates along the positioning pin (15); The side walls of the interlocking plate (3) and the two second positioning plates (7) are both provided with second mounting holes (16) for the positioning pins (15) to pass through. The positioning pins (15) are inserted into the second mounting holes (16) of the interlocking plate (3) and the two second positioning plates (7) to connect the interlocking plate (3) and the two second positioning plates (7).

5. The improved valve interlocking device according to claim 4, characterized in that: A plurality of third mounting holes (17) are provided on the side wall of the first positioning plate (6) and the top of the partition (1). A portion of the plurality of third mounting holes (17) on the top of the partition (1) is used to be bolted to the third mounting holes (17) of the first positioning plate (6), and another portion of the third mounting holes (17) is used to adjust the installation position of the first positioning plate (6) on the partition (1).

6. The improved valve interlocking device according to claim 5, characterized in that: A waist-shaped hole (18) is provided on the side wall of the slide plate (4), and the driving rod (5) is fixed to the left and right guide rails of the trolley through a third positioning plate (19). A threaded hole (20) is provided on the third positioning plate (19), and a positioning screw (21) is inserted between the waist-shaped hole (18) and the threaded hole (20). The positioning screw (21) passes through the waist-shaped hole (18) and is screwed into the threaded hole (20).

7. The improved valve interlocking device according to claim 6, characterized in that: The driving rod (5) is inserted into the shaft pin (23) on the third positioning plate (19) through the shaft sleeve (22), the end face of the interlocking plate (3) is placed in the groove (24) of the slide plate (4), and one end of the tension spring (2) is pulled into the first connecting hole (25) of the interlocking plate (3), and the other end of the tension spring (2) is pulled into the second connecting hole (26) on the first positioning plate (6).

8. The improved valve interlocking device according to claim 7, characterized in that: The positioning screw (21) on the driving rod (5) is engaged in the notch (27) on the slide plate (4).

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