Electric control valve protection device

Abstract

The invention discloses an electric control valve protection device, and particularly relates to the technical field of electric control valve protection, the electric control valve protection device comprises an L-shaped fixing seat and an electric control valve, the electric control valve is fixedly connected with alarm mechanisms, the two alarm mechanisms are fixedly connected with the L-shaped fixing seat together, the lower part of the outer surface of the electric control valve is fixedly connected with a buffer mechanism, and the buffer mechanism is fixedly connected with the L-shaped fixing seat. The lower portion of the buffering mechanism is slidably connected with the L-shaped fixing base, a rotating mechanism is arranged on the lower portion of the outer surface of the electric adjusting valve, and a descending mechanism is arranged in the middle of the outer surface of the electric adjusting valve. According to the protection device for the electric control valve, resistance of hydraulic pressure in the electric control valve to closing operation is effectively counteracted through the hydraulic pressure of the collecting box, the shaft is easily pushed to close the valve, the difficulty and the required force for manually closing the valve in emergency are reduced, and the electric control valve can be rapidly closed in emergency; the electric control valve is subjected to two-way buffering protection through the buffering mechanism, and stable operation of the electric control valve is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electric regulating valve protection, and in particular to an electric regulating valve protection device. Background Art

[0002] The electric control valve is composed of an electric actuator and a control valve connected and assembled, and then mechanically connected, assembled, debugged and installed. It can realize the automatic adjustment function, but it is easily affected by many factors during the operation of the electric control valve, such as the impact of the liquid in the conveying pipe, the leakage of the connection, and its own failure. In order to ensure the stable operation of the electric control valve, extend its service life, and reduce production interruptions and safety accidents caused by failures, the electric control valve needs to be protected.

[0003] Chinese patent announcement number CN203453617U discloses an electric regulating valve protection device, including a filter screen, a central axis and a visible box filter, the filter screen is installed in the feed pipe through the central axis, the filter screen and the inner wall of the feed pipe are matched, an adjustment handle is arranged outside the feed pipe corresponding to the filter screen, the top of the central axis is fixedly connected to the adjustment handle, a visible box filter is arranged on the medium outflow side of the filter screen, and the visible box filter is installed on the feed pipe. In the patent document with announcement number CN203453617U, when large-sized lumps flowing at high speed enter the feed pipe with the primary slurry, the filter screen can block them and slowly accumulate them, avoiding the high-speed impact of large lumps on the electric regulating valve, thereby effectively protecting the electric regulating valve, extending the service life of the electric regulating valve, and ensuring the continuity of the primary slurry delivery during the filling process, and improving the stability and reliability of the filling system.

[0004] However, during the operation of the above device, when the electric regulating valve fails, it is impossible to perform emergency braking to close the regulating valve. Summary of the invention

[0005] The main purpose of the present invention is to provide an electric regulating valve protection device, which can effectively solve the problem that the regulating valve cannot be closed by emergency braking when the electric regulating valve fails.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A protective device for an electric regulating valve comprises an L-shaped fixed seat and an electric regulating valve, wherein the left and right ends of the electric regulating valve are fixedly connected to alarm mechanisms, and the two alarm mechanisms are fixedly connected to the L-shaped fixed seat together, a buffer mechanism is fixedly connected to the lower portion of the outer surface of the electric regulating valve, and the lower portion of the buffer mechanism is slidably connected to the L-shaped fixed seat, a rotating mechanism is arranged at the lower portion of the outer surface of the electric regulating valve, and a descending mechanism is arranged at the middle portion of the outer surface of the electric regulating valve.

[0007] Preferably, the front end of the vertical portion of the L-shaped fixing seat is symmetrically fixedly connected with a guide rod, and the outer surfaces of the two guide rods are slidably connected with a support plate.

[0008] Preferably, the alarm mechanism includes a sealing ring fixedly connected to the left end of the electric regulating valve, a guide groove is opened in the middle of the inner surface of the sealing ring, a drainage tube is fixedly connected to the bottom of the inner surface of the guide groove, and an alarm block is fixedly connected to the end of the drainage tube away from the sealing ring.

[0009] Preferably, one end of the alarm block away from the drainage tube is fixedly connected to the horizontal part of the L-shaped fixing seat.

[0010] Preferably, the buffer mechanism includes thermal insulation cotton tightly attached to the lower part of the outer surface of the electric regulating valve, the front end and the rear end of the thermal insulation cotton are fixedly connected with a plurality of springs 2, and a plurality of springs 2 on the same side are commonly fixedly connected with a baffle.

[0011] Preferably, the two baffles are slidably connected to the upper end of the horizontal portion of the L-shaped fixing seat.

[0012] Preferably, the rotating mechanism includes a spherical shell fixedly connected to the lower part of the outer surface of the electric regulating valve, the upper end of the spherical shell is fixedly connected to a delivery pipe, the end of the delivery pipe away from the spherical shell is fixedly connected to a collecting box, the collecting box, the delivery pipe and the spherical shell are connected to the inner surface of the lower part of the electric regulating valve, the inner surface of the spherical shell is tightly attached to a ball stopper, and a handle is fixedly connected to the right side of the ball stopper.

[0013] Preferably, a circular hole is opened in the middle of the right side of the spherical shell, the outer surface of one end of the handle close to the ball stopper is rotatably connected to the inner surface of the circular hole, and a through hole is opened on the front side of the ball stopper.

[0014] Preferably, the descending mechanism includes a pressing ring fixedly connected to the lower end of the collecting box, the inner surface of the pressing ring is fixedly connected to a fixing cylinder, the lower end of the fixing cylinder is fixedly connected to a fixing ring, a limiting ring is provided on the inner surface of the fixing cylinder, and the lower end of the pressing ring is tightly attached to the upper ends of the two support plates.

[0015] Preferably, the upper annular array of the outer surface of the limit ring has four levers, the lower middle portion of the outer surface of the limit ring is provided with a threaded groove II, the outer surface of the pressing ring is symmetrically fixedly connected with a pressure block, the inner surface of the fixed cylinder is provided with a threaded groove I, the upper end of the fixed ring is provided with four rectangular grooves in an annular array, the inner surfaces of the four rectangular grooves are all fixedly connected with a spring I, the four springs I are all fixedly connected with a slider at one end close to the electric regulating valve, and the upper ends of the four sliders are all fixedly connected with an arc-shaped clamping block.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a buffer mechanism in conjunction with an L-shaped fixing seat to buffer and fix the electric control valve when the liquid flow in the delivery pipe is too large, effectively absorbing the impact force generated by the liquid flow in the delivery pipe, avoiding the electric control valve from being damaged due to a large impact, and improving its service life and operating stability. At the same time, it can prevent the connection between the electric control valve and the delivery pipe from being offset due to impact, thereby ensuring the tightness and sealing of the connection, reducing problems such as seepage caused by loose connection, and ensuring the normal operation of the delivery pipe system. Similarly, through the cooperation of the two alarm mechanisms, early warnings are issued in time to remind operators to deal with it, thereby avoiding further deterioration of the seepage problem and reducing the risks of equipment damage, liquid leakage, etc. that may be caused by seepage. Through the cooperation of the rotating mechanism and the descending mechanism, the flow of liquid in the delivery pipe can be quickly cut off, achieving a quick response, and minimizing the hazards that may be caused by the continued flow of liquid, such as rupture of the delivery pipe and large-scale leakage of liquid. The present invention drives the ball block to rotate by turning the handle, so that the liquid in the electric control valve flows into the collecting box, balances the hydraulic pressure of the two, and effectively offsets the resistance of the hydraulic pressure in the electric control valve to the closing operation. The operator then uses the lowering mechanism to clamp the valve shaft by utilizing the cooperation of the limit ring, the fixing cylinder and the fixing ring, and easily pushes the shaft to close the valve with the help of the hydraulic pressure of the collecting box, which greatly reduces the difficulty and required force of emergency manual closing of the valve, and enables the operator to quickly and accurately close the electric control valve in an emergency, avoids serious consequences such as large-scale leakage of the medium and uncontrolled pressure in the delivery pipe caused by malfunction, and ensures the safe and stable operation of the entire delivery pipe system and related production processes. The buffer system composed of the springs and baffles on both sides of the insulation cotton can perform two-way buffering protection on the electric control valve, which can not only prevent the electric control valve from being directly damaged by external objects and protect the equipment casing and internal precision components from being damaged by external forces, but also can reset the electric control valve when the electric control valve may be offset due to the impact of liquid in the delivery pipe, thereby ensuring the stable operation of the electric control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 It is a schematic diagram of the structure of the alarm mechanism of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the structure of the buffer mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the rotating mechanism of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 It is a schematic diagram of the structure of the descending mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the descending mechanism of the present invention from another perspective; Fig.10 It is a schematic diagram of the partial cross-sectional structure of the descending mechanism of the present invention.

[0018] In the figure: 1. L-shaped fixing seat; 11. guide rod; 12. support plate; 2. electric regulating valve; 3. rotating mechanism; 31. collecting box; 32. conveying pipe; 33. handle; 34. spherical shell; 341. round hole; 35. ball stopper; 351. through hole; 4. descending mechanism; 41. fixing ring; 411. rectangular groove; 412. spring one; 413. slider; 414. arc clamping block; 42. fixing cylinder; 421. thread groove one; 43. pressing ring; 431. pressing block; 44. limiting ring; 441. lever; 442. thread groove two; 5. buffer mechanism; 51. thermal insulation cotton; 52. spring two; 53. baffle; 6. alarm mechanism; 61. sealing ring; 611. guide groove; 62. drainage pipe; 63. alarm block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1, as Figure 1 As shown, an electric regulating valve protection device includes an L-shaped fixed seat 1 and an electric regulating valve 2, the left and right ends of the electric regulating valve 2 are fixedly connected with an alarm mechanism 6, the two alarm mechanisms 6 are fixedly connected to the L-shaped fixed seat 1, a buffer mechanism 5 is fixedly connected to the lower part of the outer surface of the electric regulating valve 2, the lower part of the buffer mechanism 5 is slidably connected to the L-shaped fixed seat 1, a rotating mechanism 3 is arranged at the lower part of the outer surface of the electric regulating valve 2, and a descending mechanism 4 is arranged in the middle part of the outer surface of the electric regulating valve 2.

[0021] When the electric regulating valve 2 is connected to the delivery pipe to control the delivery of the liquid in the delivery pipe, the L-shaped fixing seat 1 cooperates with the buffer mechanism 5 to buffer and fix the electric regulating valve 2 during use, so as to avoid the excessive flow in the delivery pipe from impacting the electric regulating valve 2 and causing the connection between the electric regulating valve 2 and the delivery pipe to deviate; At the same time, the electric regulating valve 2 and two alarm mechanisms 6 are used to connect with the delivery pipe. If leakage occurs at the interface between the delivery pipe and the electric regulating valve 2, an early warning can be issued in time to remind the operator. When the electric regulating valve 2 fails and cannot be closed automatically, the rotating mechanism 3 is used in conjunction with the descending mechanism 4 to quickly cut off the flow of liquid in the delivery pipe in an emergency.

[0022] See also Figure 2 The front end of the vertical part of the L-shaped fixing seat 1 is symmetrically fixedly connected with a guide rod 11, and the outer surfaces of the two guide rods 11 are slidably connected with a support plate 12.

[0023] Furthermore, the two guide rods 11 cooperate with the L-shaped fixing seat 1 to limit the support plate 12 during the operation of the support plate 12, and provide supporting force for the support plate 12 when the support plate 12 is not in operation.

[0024] During the operation of this embodiment, when the liquid flow in the delivery pipe is too large, the buffer mechanism 5 cooperates with the L-shaped fixing seat 1 to play a buffering and fixing role for the electric control valve 2, effectively absorbing the impact force generated by the liquid flow in the delivery pipe, avoiding the electric control valve 2 from being damaged due to a large impact, and improving its service life and operation stability. At the same time, it can prevent the connection between the electric control valve 2 and the delivery pipe from being offset due to impact, ensure the tightness and sealing of the connection, reduce problems such as seepage caused by loose connection, and ensure the normal operation of the delivery pipe system. Similarly, through the cooperation of the two alarm mechanisms 6, an early warning is issued in time to remind the operator to deal with it, avoid further deterioration of the seepage problem, and reduce the risks of equipment damage and liquid leakage caused by seepage. Through the cooperation of the rotating mechanism 3 and the descending mechanism 4, it is possible to quickly cut off the flow of liquid in the delivery pipe, achieve a quick response, and minimize the hazards that may be caused by the continued flow of liquid, such as rupture of the delivery pipe and large-scale leakage of liquid.

[0025] Embodiment 2: Based on Embodiment 1, this embodiment aims to achieve the effect of easily closing the electric regulating valve 2 manually by using the internal hydraulic pressure of the collecting box 31 to assist in offsetting the internal hydraulic pressure of the electric regulating valve 2.

[0026] See also Figure 3 The alarm mechanism 6 includes a sealing ring 61 fixedly connected to the left end of the electric regulating valve 2, a guide groove 611 is opened in the middle of the inner surface of the sealing ring 61, a drainage tube 62 is fixedly connected to the bottom of the inner surface of the guide groove 611, and an alarm block 63 is fixedly connected to the end of the drainage tube 62 away from the sealing ring 61.

[0027] Specifically, when the electric regulating valve 2 cooperates with the delivery pipes at the left and right ends to transfer liquid, the sealing ring 61 is fixed between the left end of the electric regulating valve 2 and the delivery pipe, and the guide groove 611 is aligned with the connection between the electric regulating valve 2 and the delivery pipe. If liquid seepage occurs between the delivery pipe and the electric regulating valve 2, the liquid will flow along the inner surface of the guide groove 611 to the inside of the drainage pipe 62, and then flow into the inside of the alarm block 63. The alarm block 63 is triggered to provide an alarm for the user, so that the user can find the problem of liquid seepage in time and handle it.

[0028] The alarm block 63 is a liquid immersion alarm in the prior art, and its working principle is to use the conductivity of liquid. When the sensor, which usually includes two metal contacts, is soaked by liquid, a path is formed between the two metal contacts, thereby triggering the internal circuit and sounding an alarm. This alarm usually includes a sound alarm and sending an alarm message to the mobile phone terminal, so that water leakage can be discovered and handled in time.

[0029] See also Figure 4 One end of the alarm block 63 away from the drainage tube 62 is fixedly connected to the horizontal part of the L-shaped fixing seat 1.

[0030] By fixing the alarm block 63 to the L-shaped fixing seat 1, it is convenient for operators to confirm the alarm position in time and solve the problem in time.

[0031] See also Figure 5 The buffer mechanism 5 includes a heat-insulating cotton 51 which is in close contact with the lower part of the outer surface of the electric regulating valve 2. The front and rear ends of the heat-insulating cotton 51 are fixedly connected with a plurality of springs 52. The plurality of springs 52 on the same side are fixedly connected with a baffle 53. The two baffles 53 are slidably connected with the upper end of the horizontal part of the L-shaped fixing seat 1.

[0032] During the operation of the electric regulating valve 2 , the insulation cotton 51 cooperates to insulate the lower part of the outer surface of the electric regulating valve 2 to prevent the liquid from affecting its performance due to temperature changes, so as to ensure the stability and safety of the production process.

[0033] When the liquid flow rate in the delivery pipe is fast, the electric control valve 2 may be subjected to a large impact during the adjustment process. It may be that the electric control valve 2 drives the delivery pipes at both ends to deviate. At this time, through the cooperation of the plurality of springs 52 on the front and rear sides, when the electric control valve 2 is just starting or closing, the liquid in the delivery pipe has a large impact on the inside of the electric control valve 2. At this time, if the electric control valve 2 is slightly offset, the spring 2 52 on one side will be stretched and the spring 2 52 on the other side will be compressed. The energy generated by the offset of the electric control valve 2 is absorbed by the cooperation of several springs 2 52. Similarly, after the electric control valve 2 starts smoothly and is closed, several springs 2 52 cooperate to reset the electric control valve 2 to ensure the stability of the operation of the electric control valve 2.

[0034] Similarly, during the transportation of the electric control valve 2 in conjunction with the conveying pipe, if external stored objects squeeze the front or rear side of the electric control valve 2, it will first squeeze the baffle 53 on one side, and then the baffle 53 will squeeze the multiple springs 52 on the same side. At this time, the baffle 53 will slide along the upper end of the horizontal part of the L-shaped fixed seat 1 toward the direction close to the electric control valve 2. At this time, the multiple springs 52 are compressed to absorb the energy brought by the external objects squeezing the baffle 53, thereby preventing the external objects from squeezing the electric control valve 2 and causing damage to the electric control valve 2.

[0035] The insulation cotton 51 mentioned above is made of the rock wool board commonly used in the prior art. The insulation cotton 51 made of the rock wool board insulates the lower part of the outer surface of the electric control valve 2. At the same time, due to the performance of the material, the insulation cotton 51 can not only insulate the electric control valve 2 but also has a certain fire prevention function, thereby ensuring the stable operation of the electric control valve 2 during operation.

[0036] See also Figure 6 and Figure 7 The rotating mechanism 3 includes a spherical shell 34 fixedly connected to the lower part of the outer surface of the electric regulating valve 2, a delivery pipe 32 is fixedly connected to the upper end of the spherical shell 34, and a collecting box 31 is fixedly connected to the end of the delivery pipe 32 away from the spherical shell 34. The collecting box 31, the delivery pipe 32 and the spherical shell 34 are connected to the inner surface of the lower part of the electric regulating valve 2. A ball stopper 35 is tightly attached to the inner surface of the spherical shell 34, and a handle 33 is fixedly connected to the right side of the ball stopper 35.

[0037] When the electric regulating valve 2 fails and cannot be closed automatically, the handle 33 is rotated 90 degrees, and the handle 33 drives the ball stopper 35 to rotate 90 degrees. Then the liquid transported by the inner surface of the electric regulating valve 2 passes through the inner surface of the spherical shell 34 and the cooperation with the ball stopper 35 and enters the inner surface of the delivery pipe 32, and then enters the interior of the collection box 31; This can make the liquid pressure on the collection box 31 basically the same as the hydraulic pressure on the inner surface of the electric control valve 2. Therefore, during the emergency manual closing of the electric control valve 2, the hydraulic pressure inside the collection box 31 can offset the hydraulic pressure on the inner surface of the electric control valve 2, so that the operator can easily cooperate with the electric control valve 2 for emergency manual closing through the descending mechanism 4.

[0038] See also Figure 7 A circular hole 341 is opened in the middle of the right side of the spherical shell 34 , the outer surface of one end of the handle 33 close to the ball stopper 35 is rotatably connected to the inner surface of the circular hole 341 , and a through hole 351 is opened on the front side of the ball stopper 35 .

[0039] Furthermore, the inner surface of the spherical shell 34 is in close contact with the outer surface of the ball stopper 35. During the normal operation of the electric control valve 2, the liquid on the inner surface of the electric control valve 2 will not enter the inner surface of the delivery pipe 32 through the ball stopper 35. When the electric control valve 2 fails and the electric control valve 2 needs to be emergency braked, the handle 33 is turned forward or backward. At this time, the handle 33 rotates along the inner surface of the circular hole 341, and at the same time, the ball stopper 35 is driven to rotate in the same direction along the inner surface of the spherical shell 34. When the inner surface of the through hole 351 is driven by the ball stopper 35 to rotate to connect the electric control valve 2 and the inner surface of the delivery pipe 32, the liquid on the inner surface of the electric control valve 2 enters the inner surface of the delivery pipe 32 through the inner surface of the through hole 351 and then enters the interior of the collection box 31, which makes the hydraulic pressure inside the collection box 31 basically the same as the inner surface of the electric control valve 2.

[0040] After the electric regulating valve 2 is manually closed in an emergency, the handle 33 can be slowly rotated to reset it. During the resetting process of the handle 33, the ball stopper 35 is driven to continue to rotate along the inner surface of the spherical shell 34 until the inner surface of the through hole 351 is disconnected from the inner surface of the delivery pipe 32 and the electric regulating valve 2. Then the user pours out the liquid on the inner surface of the collection box 31 and the delivery pipe 32 through existing technology to avoid long-term retention and subsequent contamination of the liquid inside the electric regulating valve 2 during use.

[0041] See also Figure 8-10 The descending mechanism 4 includes a pressing ring 43 fixedly connected to the lower end of the collecting box 31, a fixing cylinder 42 is fixedly connected to the inner surface of the pressing ring 43, a fixing ring 41 is fixedly connected to the lower end of the fixing cylinder 42, a limiting ring 44 is provided on the inner surface of the fixing cylinder 42, and the lower end of the pressing ring 43 is in close contact with the upper ends of the two support plates 12.

[0042] When the electric regulating valve 2 needs to be closed manually in an emergency, firstly, the control of the upper end of the electric regulating valve 2 on the closing valve shaft in the electric regulating valve 2 is released by the existing technology; See also Fig. 9 , then by rotating the limit ring 44, the limit ring 44 is matched with the fixed cylinder 42, and the limit ring 44 descends during the rotation process. At the same time, the limit ring 44 cooperates with the fixed ring 41 during the descent process to clamp the shaft of the closing valve in the electric control valve 2, and then by pressing the pressing ring 43 downward, and because the internal hydraulic pressure of the collection box 31 is the same as the hydraulic pressure on the inner surface of the electric control valve 2, when the user manually presses the pressing ring 43 downward to push the valve closing shaft of the electric control valve 2, the hydraulic pressure inside the collection box 31 helps to offset the hydraulic pressure on the inner surface of the electric control valve 2, so that the operator can easily push the shaft in the electric control valve 2 downward.

[0043] See also Fig.10, four levers 441 are arranged in a circular array on the upper outer surface of the limiting ring 44, a thread groove 2 442 is provided in the middle and lower part of the outer surface of the limiting ring 44, a pressure block 431 is symmetrically fixedly connected to the outer surface of the pressing ring 43, a thread groove 1 421 is provided on the inner surface of the fixing cylinder 42, four rectangular grooves 411 are arranged in a circular array on the upper end of the fixing ring 41, springs 1 412 are fixedly connected to the inner surfaces of the four rectangular grooves 411, sliders 413 are fixedly connected to one end of the four springs 1 412 close to the electric regulating valve 2, and arc-shaped clamping blocks 414 are fixedly connected to the upper ends of the four sliders 413.

[0044] Specifically, the second thread groove 442 and the first thread groove 421 are grooves that match each other.

[0045] When the lever 441 is pushed, the lever 441 drives the limit ring 44 to rotate, and at the same time, the second thread groove 442 cooperates with the first thread groove 421 to make the limit ring 44 descend during the rotation process; Furthermore, see Fig.10 During the descent of the limit ring 44, it will move downward along the arc surface of the four arc-shaped clamping blocks 414, and then push the four arc-shaped clamping blocks 414 to the side close to each other. At this time, the side of the lever 441 close to the shaft of the closing valve in the electric control valve 2 can be in close contact with the shaft of the electric control valve 2. During the descent of the limit ring 44, the four arc-shaped clamping blocks 414 are pushed to squeeze and clamp the shaft of the closing valve in the electric control valve 2 from four directions. At the same time, during the movement of the four arc-shaped clamping blocks 414, the slider 413 fixedly connected thereto slides along the inner surface of the rectangular groove 411 at the same time, thereby stretching the spring 1 412. After the four arc-shaped clamping blocks 414 clamp the shaft of the closing valve in the electric control valve 2, the lever 441 is no longer rotated at this time, and the two pressing blocks 431 are immediately pressed downward, so that the pressing blocks 431 drive the pressing ring 43, the fixed cylinder 42 and the shaft of the closing valve in the electric control valve 2 to be pushed downward at the same time, so that the electric control valve 2 can be manually closed. Likewise, in the process of pressing the pressing block 431 downward, the pressing ring 43 moves downward and pushes the support plate 12 downward at the same time.

[0046] When the electric control valve 2 is manually closed, the fault can be repaired, and then the lever 441 is pushed in the opposite direction to make the limit ring 44 rise through the cooperation between the second thread groove 442 and the first thread groove 421 during rotation, thereby releasing the push on the four arc-shaped clamping blocks 414, and then the stretched spring 1 412 returns to its original state, driving the slider 413 and the arc-shaped clamping block 414 to reset, and then the four arc-shaped clamping blocks 414 no longer clamp the shaft in the electric control valve 2, and then the pressure block 431 is moved to make the fixing ring 41 and the fixing cylinder 42 move upward as a whole for reset, so as to facilitate the next emergency braking of the electric control valve 2.

[0047] Therefore, this solution drives the ball block 35 to rotate by turning the handle 33, so that the liquid in the electric control valve 2 flows into the collecting box 31, balances the hydraulic pressure of the two, and effectively offsets the resistance of the hydraulic pressure in the electric control valve 2 to the closing operation. The operator then uses the lowering mechanism 4 to clamp the valve shaft by using the limit ring 44 and the fixing cylinder 42 and the fixing ring 41, and easily pushes the shaft to close the valve with the help of the hydraulic assistance of the collecting box 31, which greatly reduces the difficulty and required force of emergency manual closing of the valve, so that the operator can quickly and accurately close the electric control valve in an emergency, avoid serious consequences such as large-scale leakage of the medium and uncontrolled pressure in the delivery pipe caused by failure, and ensure the safe and stable operation of the entire delivery pipe system and related production processes. The buffer system composed of the spring 52 and the baffle 53 on both sides of the insulation cotton 51 can provide two-way buffer protection for the electric control valve 2, which can not only prevent external objects from directly damaging the electric control valve 2, protect the equipment casing and internal precision components from external damage, but also can reset the electric control valve 2 when the electric control valve 2 may be offset due to the impact of liquid in the delivery pipe, so as to ensure the stable operation of the electric control valve 2.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electric regulating valve protection device, comprising an L-shaped fixing seat (1) and an electric regulating valve (2), characterized in that: The left and right ends of the electric regulating valve (2) are both fixedly connected to an alarm mechanism (6), and the two alarm mechanisms (6) are fixedly connected to the L-shaped fixed seat (1). The lower part of the outer surface of the electric regulating valve (2) is fixedly connected to a buffer mechanism (5), and the lower part of the buffer mechanism (5) is slidably connected to the L-shaped fixed seat (1). The lower part of the outer surface of the electric regulating valve (2) is provided with a rotating mechanism (3), and the middle part of the outer surface of the electric regulating valve (2) is provided with a descending mechanism (4).

2. The electric regulating valve protection device according to claim 1, characterized in that: The front end of the vertical part of the L-shaped fixing seat (1) is symmetrically fixedly connected to a guide rod (11), and the outer surfaces of the two guide rods (11) are slidably connected to a support plate (12).

3. The electric regulating valve protection device according to claim 1 is characterized in that: The alarm mechanism (6) comprises a sealing ring (61) fixedly connected to the left end of the electric regulating valve (2); a guide groove (611) is provided in the middle of the inner surface of the sealing ring (61); a drainage tube (62) is fixedly connected to the bottom of the inner surface of the guide groove (611); and an alarm block (63) is fixedly connected to one end of the drainage tube (62) away from the sealing ring (61).

4. The electric regulating valve protection device according to claim 3 is characterized in that: One end of the alarm block (63) away from the drainage tube (62) is fixedly connected to the horizontal portion of the L-shaped fixing seat (1).

5. The electric regulating valve protection device according to claim 1 is characterized in that: The buffer mechanism (5) comprises a heat-insulating cotton (51) tightly attached to the lower portion of the outer surface of the electric regulating valve (2), the front end and the rear end of the heat-insulating cotton (51) are fixedly connected to a plurality of springs (52), and a plurality of springs (52) on the same side are fixedly connected to a baffle (53).

6. The electric regulating valve protection device according to claim 5, characterized in that: The two baffles (53) are slidably connected to the upper end of the horizontal portion of the L-shaped fixing seat (1).

7. The electric regulating valve protection device according to claim 2, characterized in that: The rotating mechanism (3) comprises a spherical shell (34) fixedly connected to the lower part of the outer surface of the electric regulating valve (2); the upper end of the spherical shell (34) is fixedly connected to a delivery pipe (32); one end of the delivery pipe (32) away from the spherical shell (34) is fixedly connected to a collection box (31); the collection box (31), the delivery pipe (32) and the spherical shell (34) are in communication with the inner surface of the lower part of the electric regulating valve (2); a ball stopper (35) is tightly attached to the inner surface of the spherical shell (34); and a handle (33) is fixedly connected to the right side of the ball stopper (35).

8. The electric regulating valve protection device according to claim 7, characterized in that: A circular hole (341) is provided in the middle of the right side of the spherical shell (34); an outer surface of one end of the handle (33) close to the ball stopper (35) is rotatably connected to the inner surface of the circular hole (341); and a through hole (351) is provided on the front side of the ball stopper (35).

9. The electric regulating valve protection device according to claim 7, characterized in that: The descending mechanism (4) comprises a pressing ring (43) fixedly connected to the lower end of the collecting box (31); the inner surface of the pressing ring (43) is fixedly connected to a fixing cylinder (42); the lower end of the fixing cylinder (42) is fixedly connected to the fixing ring (41); a limiting ring (44) is provided on the inner surface of the fixing cylinder (42); and the lower end of the pressing ring (43) is in close contact with the upper ends of the two support plates (12).

10. The electric regulating valve protection device according to claim 9, characterized in that: The upper portion of the outer surface of the limiting ring (44) is provided with four levers (441) in an annular array, the middle and lower portion of the outer surface of the limiting ring (44) is provided with a second thread groove (442), the outer surface of the pressing ring (43) is symmetrically fixedly connected with a pressing block (431), the inner surface of the fixing cylinder (42) is provided with a first thread groove (421), the upper end of the fixing ring (41) is provided with four rectangular grooves (411) in an annular array, the inner surfaces of the four rectangular grooves (411) are all fixedly connected with a first spring (412), the ends of the four first springs (412) close to the electric regulating valve (2) are all fixedly connected with a slider (413), and the upper ends of the four sliders (413) are all fixedly connected with an arc-shaped clamping block (414).

Images