A stainless steel signal gate valve

Abstract

The present invention belongs to the field of valve technology, and in particular relates to a stainless steel signal gate valve, comprising a valve body, a valve cover, a valve stem, a valve plate and a handwheel, wherein a controller and a motor driven by the controller are arranged outside the valve cover, a rotating member for driving the kit to rotate is arranged between the upper end of the kit and the handwheel, the rotating member is connected to the motor, the kit is rotatably connected to a clamping member that clamps the kit and drives the kit to be divided into two halves, and the first clamping member and the second clamping member are used to open to the left and right sides, and the kit is driven to be divided into two halves, thereby canceling the clamping and restriction of the valve stem, so that after the valve stem is separated from the support of the kit, the valve stem and the valve plate move downward by their own weight to achieve a sealing effect, and quickly fall to achieve rapid closure, so that it can be used normally, and if an emergency situation requires rapid closure, or if the conveyed material changes or there are impurities that need to be urgently blocked, this operation can be used to achieve a rapid cut-off effect.

Description

Technical Field

[0001] The invention discloses a gate valve, in particular to a stainless steel signal gate valve. Background Art

[0002] Valves generally act on transportation pipelines such as gases and liquids, and their function is to open, close and regulate. Existing valves include gate valves, check valves, ball valves and butterfly valves, and different valves have different advantages. Valves are widely used and the type of valve to be used is selected according to different situations. At the same time, with the progress of life and the development of science and technology, valves are automatically opened and closed by using sensors and other devices to achieve the effect of automation. This type is a signal valve. In the prior art, signal valves are generally used for fire protection pipelines, or valves for pipeline diversion in cities, and different valves are used in different situations, of which the signal gate valve is one.

[0003] In the prior art, gate valves are often used in various types of pipeline transportation because of their low flow resistance and easy opening and closing. However, the existing gate valves are generally opened and closed by rotating an external handwheel or a wheel, and are connected to the thread on the valve stem, so that the valve stem and the valve plate move upward. The opening and closing time is slow due to the large driving stroke, and the water flow cannot be quickly blocked when closing. Therefore, there is no way to quickly cut off the water flow in special circumstances: for example, after the valve plate is opened, if a water pipe bursts at the front end of the valve plate or an emergency closure is required, the water flow cannot be quickly cut off and is relatively slow, which may lead to loss or waste of resources in the pipe. Although the prior art also has other ways to overcome this problem, the present application proposes another solution, so that after being driven under normal conditions, when an emergency situation requires quick cutting, the valve can be adjusted immediately to achieve the effect of quick switching and closing the valve. Summary of the invention

[0004] The purpose of the present invention is to provide a stainless steel signal gate valve in order to solve the above problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stainless steel signal gate valve, comprising a valve body, a valve cover, a valve stem, a valve plate and a handwheel, a set for accommodating the valve stem to be embedded is provided between the outside of the valve cover and the handwheel, the set is threadedly connected to the valve stem, a controller and a motor 1 driven by the controller are provided outside the valve cover, a rotating member for driving the set to rotate is provided between the upper end of the set and the handwheel, the rotating member is connected to the motor 1, the set is rotatably connected with a clamping set and drives the set to be divided into two halves, a motor 2 driven by the controller is provided outside the valve cover, the clamping member is divided into a first clamping member and a second clamping member, a driving component for driving the first clamping member and the second clamping member to open and close is provided between the motor 2 and the clamping member, and an adjusting component is provided between the rotating member and the set;

[0006] The driving assembly includes a driving wheel clamped with a second motor, the driving wheel is meshed with a transmission wheel, the uppermost end of the first clamping member is provided with a bevel gear one meshed with the driving wheel, a support rod is rotatably connected between the first clamping member and the second clamping member, a bevel gear two is provided at a position of the first clamping member close to the second clamping member, a bevel gear three meshed with the bevel gear two is provided at a position of the support rod located between the first clamping member and the second clamping member, and a bevel gear four meshed with the bevel gear three is provided on the second clamping member;

[0007] The adjustment component includes a plug-in arranged on the kit, and the rotating part is provided with a slot for accommodating the insertion of the plug-in. The plug-in is connected to the rotating part by magnetic attraction. The side of the plug-in close to the clamping part is arranged in an arc shape, and the remaining sides are vertical surfaces. The first clamping part and the second clamping part are provided with a protrusion embedded in the kit, and the protrusion is in a convex shape. The kit is provided with an annular groove for accommodating the movement of the protrusion.

[0008] Preferably, the rotating part drives the kit to rotate to ensure that the final rotation position of the kit is the same as the initial position, and the surface opposite to the slot and the plug-in is also an arc-shaped surface, the kit and the first clamping part and the second clamping part also have magnetic attraction, and the force of the rotating part's rotation is greater than the force of the magnetic attraction between the kit and the first clamping part and the second clamping part, and the force of the first clamping part and the second clamping part opening and closing is greater than the force of the adsorption of the plug-in and the kit.

[0009] Preferably, a connecting rope is wound around the driving wheel, a cavity for accommodating the embedding of the valve stem is provided in the rotating member, and an extrusion member connected to the connecting rope and abutting against the valve stem is provided in the rotating member in the cavity.

[0010] Preferably, a spring abutting against the valve plate and used to buffer the downward movement of the valve plate is provided at the bottom of the valve body, and a tension spring driving the extrusion member to return to its original position is provided at the upper ends of the extrusion member and the rotating member.

[0011] Preferably, the support rod and the first clamping member are provided with mutually communicating limit grooves, the valve cover is slidably connected to a limit block embedded in the limit groove to limit the rotation of the first clamping member, and the valve cover is provided with a component outside for releasing the limit block from limiting the first clamping member.

[0012] Preferably, the release assembly comprises a second transmission wheel fitted with the driving wheel and engaged with the second motor, the limit block is provided with teeth meshing with the second transmission wheel, and the driving wheel is a toothless gear.

[0013] Preferably, the motor 2 will first drive the transmission wheel 2 to engage with the teeth of the limit block, and the thickness of the transmission wheel 2 is greater than that of the transmission wheel 1, and the position of the limit block is lower than the bevel gear 1.

[0014] Preferably, the driving wheel is slidably connected to the rotating shaft of the second motor, and the driving wheel and the rotating shaft of the second motor are fixed in position by magnetic attraction.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] First, in normal use, the valve plate of the gate valve is driven to open and close by rotating the hand wheel, or the control terminal outputs a control signal to the controller, so that the controller controls the motor to start and drives the rotating part to rotate. When the rotating part rotates, the threaded valve stem will be driven to rotate and move upward, so as to achieve the effect of controlling the valve plate to rise and fall to achieve the opening and closing. After using this device, when the rotating part is driven to rotate, it will interact with the vertical surface of the card slot and the plug-in, drive the kit to rotate at the same time, and the thread of the kit and the thread of the valve stem will engage with each other, so as to achieve the effect of driving the valve stem to move upward;

[0017] Secondly, if it is used in a normal state and needs to be closed quickly, the terminal outputs a signal to the controller, so that the controller controls the second motor to rotate, so that the second motor drives the driving wheel to rotate, and drives the meshing transmission wheel to rotate, and the bevel gear at the outer end of the transmission wheel drives the first bevel gear to rotate, so that the first clamping member is driven to rotate, so that the first clamping member drives the second bevel gear on the support rod to rotate, and finally the second bevel gear drives the third bevel gear to control the second clamping member to rotate, and at the same time, through the conversion of the second bevel gear, the second clamping member and the fourth bevel gear are driven to rotate in the opposite direction to the first clamping member and the second bevel gear, so as to achieve the effect of controlling the first clamping member and the second clamping member to open to the left and right sides, and drive the set to be divided into two halves, so as to cancel the clamping and restriction of the valve stem, so that after the valve stem is separated from the support of the set, the valve stem and the valve plate move down by their own weight to achieve the effect of closing, and quickly fall to achieve rapid closing, so that the drive can be used normally, if there is an emergency situation that requires rapid closing, or if there is any change in the conveyed material or there are impurities that need to be urgently blocked, this operation can be used to achieve the effect of rapid cutting;

[0018] Thirdly, when the restriction and support are released at the same time, the rotation of the driving wheel will cause its rotating shaft to reel in the connecting rope and drive the connected extrusion piece to move downward together, so that the extrusion piece abuts against the valve stem and pushes the valve stem downward to achieve rapid closure. At the same time, with the support of the extrusion piece, it is ensured to be tightly closed to avoid the valve plate from moving inconveniently or slowly due to the downward resistance or friction force and other transport material pressure. The spring will play a certain buffering effect when it reaches the bottom to avoid the situation where the valve plate is affected by excessive impact;

[0019] Fourthly, during normal use, the lower limit block is embedded in the limit groove to limit the rotation of the first clamping member, so that when the first clamping member cannot rotate, the bevel gear one and the bevel gear two cannot rotate either, and thus the second clamping member cannot rotate either. This arrangement ensures that the state is normal under normal use and will not be affected by external forces to cause the first clamping member and the second clamping member to loosen. On the contrary, when it needs to be released, it is turned on by motor two. Because the driving wheel is a toothless gear, the transmission wheel two will first engage with the teeth of the limit block, and drive the limit block to move backward to cancel the restriction on the first clamping member. After the driving wheel engages with the transmission wheel one, the opening and closing of the first clamping member and the second clamping member can be directly controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a stainless steel signal gate valve;

[0021] Figure 2 This is a schematic diagram of the internal structure of a stainless steel signal gate valve;

[0022] Figure 3 A schematic diagram of the partial structure of a stainless steel signal gate valve Figure 1 ;

[0023] Figure 4 for Figure 3 A local enlarged schematic diagram at point A;

[0024] Figure 5 A schematic diagram of the partial structure of a stainless steel signal gate valve Figure 2 ;

[0025] Figure 6 A schematic diagram of the partial structure of a stainless steel signal gate valve Figure 3 .

[0026] : Illustrations: 1. valve body; 2. valve cover; 3. valve stem; 4. hand wheel; 5. kit; 6. motor one; 7. controller; 8. rotating part; 9. motor two; 10. first clamping part; 11. second clamping part; 12. driving wheel; 13. transmission wheel one; 14. bevel gear one; 15. support rod; 16. bevel gear two; 17. bevel gear three; 18. bevel gear four; 19. plug-in; 20. slot; 21. protrusion; 22. annular groove; 23. connecting rope; 24. cavity; 25. extrusion part; 26. tension spring; 27. spring one; 28. limit groove; 29. ​​limit block; 30. transmission wheel two; 31. teeth. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] A stainless steel signal gate valve, such as Figure 1-Figure 6 As shown, it includes a valve body 1, a valve cover 2, a valve stem 3, a valve plate and a handwheel 4. A kit 5 for accommodating the valve stem 3 is provided between the outside of the valve cover 2 and the handwheel 4. The kit 5 is threadedly connected to the valve stem 3. A controller 7 and a motor 1 6 driven by the controller 7 are provided outside the valve cover 2. A rotating member 8 for driving the kit 5 to rotate is provided between the upper end of the kit 5 and the handwheel 4. The rotating member 8 is connected to the motor 1 6. The kit 5 is rotatably connected with a clamping kit 5 and drives the kit 5 to be divided into two halves. A motor 2 9 driven by the controller 7 is provided outside the valve cover 2. The clamping member is divided into a first clamping member 10 and a second clamping member 11. A driving component for driving the first clamping member 10 and the second clamping member 11 to open and close is provided between the motor 2 9 and the clamping member. An adjusting component is provided between the rotating member 8 and the kit 5. Through normal use, the switch of the terminal is turned on and an output signal is sent to the controller. At 7, the controller 7 starts the motor 1 6. When the motor 1 6 is turned on, it will drive the rotating part 8 or the object on the valve cover 2 that is meshed with the valve stem 3 to rotate, so as to engage with the valve stem 3 through a threaded connection. Through the limitation of the movement path of the valve plate and the valve stem 3, it is ensured that after the threaded engagement, the valve stem 3 drives the valve plate to move up to open. Conversely, the terminal controls the motor 2 9 to reset and drive the rotating part 8 or the gear to drive the valve stem 3 to rotate in the opposite direction and move it down to close. In this way, because the stroke is long, the opening and closing are relatively slow. However, in special circumstances such as the rupture of the pipeline in front and the outflow of materials, emergency closure is required. The slow closing will result in waste of materials transported by the pipeline, or impurities or pollution are added to the materials transported by the pipeline. When emergency closure is required, it will be relatively slow, which may cause outflow or excessive outflow.

[0029] The driving assembly includes a driving wheel 12 connected to the motor 2 9, the driving wheel 12 is meshed with a transmission wheel 13, the uppermost end of the first clamping member 10 is provided with a bevel gear 14 meshed with the driving wheel 12, a support rod 15 is rotatably connected between the first clamping member 10 and the second clamping member 11, the first clamping member 10 is provided with a bevel gear 2 16 near the second clamping member 11, the support rod 15 is provided with a bevel gear 3 17 meshed with the bevel gear 2 16 between the first clamping member 10 and the second clamping member 11, and the second clamping member 11 is provided with a bevel gear 4 18 meshed with the bevel gear 3 17. When using this device, When the valve is normally lifted to open, the terminal opening switch is turned on, and a signal is output to the controller 7 to control the motor 1 6 to turn on the conversion gear to drive the rotating part 8 to rotate, and at the same time drive the clamped set 5 to rotate together. The thread in the set 5 is engaged with the thread of the valve stem 3, and the valve stem 3 and the valve plate are driven upward through the thread to achieve opening. When it is necessary to quickly cut off and close, because there is no thread in the rotating part 8, and the valve cover 2 and the valve body 1 are also not threaded, the thread in the set 5 is engaged with the valve stem 3 to support. At this time, the switch on the terminal to control the motor 2 9 is turned on, and the output signal makes the controller 7 The control motor 29 is turned on to rotate and drive the connected driving wheel 12 to rotate. The driving wheel 12 drives the laterally meshed transmission wheel 13 to rotate together, so that the bevel gear on the outer side of the transmission wheel 13 rotates at the same time, and the meshed bevel gear 14 is driven to rotate and drive the first clamping member 10 to move sideways. When the first clamping member 10 rotates, the bevel gear 2 16 will rotate synchronously, and the bevel gear 3 17 rotatably connected to the support rod 15 will be meshed to drive it to rotate, and the bevel gear 3 17 will mesh with the meshed bevel gear 4 18, and control the second first clamping member 10 to rotate. 5, the bevel gear three 17 is switched, so that the second clamping member 11 and the first clamping member 10 rotate in the opposite direction, so that the two clamping members are opened, and at the same time, the two fitting sets 5 are driven to separate, and the support and restriction on the valve stem 3 are cancelled. After being separated from the support, the valve stem 3 will move down due to its own weight and be re-embedded into the groove in the valve body 1, so as to achieve the effect of rapid cutting off. This arrangement ensures that it can be quickly closed in an emergency, and can still be opened slowly and normally, and will not affect normal use. The motor two 9, the motor one 6 and the controller 7 are all existing technologies and will not be discussed in detail here.

[0030] The adjustment component includes a plug-in 19 arranged on the kit 5, and a slot 20 for accommodating the plug-in 19 to be embedded is provided on the rotating member 8. The plug-in 19 is connected to the rotating member 8 by magnetic attraction. The side of the plug-in 19 close to the clamping member is arc-shaped, and the remaining sides are vertical surfaces. The first clamping member 10 and the second clamping member 11 are provided with a protrusion 21 embedded on the kit 5, and the protrusion 21 is convex, and the kit 5 is provided with an annular groove 22 for accommodating the movement of the protrusion 21. The rotating member 8 drives the kit 5 to rotate to ensure that the final rotation position of the kit 5 is the same as the initial position, and the surface opposite to the slot 20 and the plug-in 19 is also an arc-shaped surface. The kit 5 and the first clamping member 10 and the second clamping member 11 also have magnetic attraction, and the rotation force of the rotating member 8 is greater than the magnetic attraction force of the kit 5 and the first clamping member 10 and the second clamping member 11. The opening and closing force of the first clamping member 10 and the second clamping member 11 is greater than the adsorption force of the plug-in 19 and the kit 5. Secondly, when the first clamping member 10 and the second clamping member 11 are rotated and opened, the two kits 5 are driven to separate, and the plug-in 19 is moved to both sides, so that the arc surface on the plug-in 19 fits with the arc surface of the slot 20, and the opening force makes the arc surface of the plug-in 19 fit with the arc surface of the slot 20 and squeeze it downward, squeezing the spring at the bottom of the plug-in 19 to disengage from the slot 20 and open. A protrusion 21 is also embedded in the kit 5, and at the same time, the annular grooves 22 of the two kits 5 are connected to each other to ensure that there will be no influence when rotating, and they will rotate to the initial position and close, so as to ensure that the protrusion 21 is also in the middle of the annular groove 22 when opening, and the kit 5 is driven to move left and right through the cooperation of the protrusion 21 and the annular groove 22 when opening, thereby ensuring that there will be no restriction on the opening and closing of the first clamping member 10 and the second clamping member 11, and the plug-in 19 cooperates with the card slot 20 to ensure that there will be no restriction on pushing along the vertical plane when rotating, and the magnetic attraction ensures that the connection is stable, and the opening and closing force is greater than the adsorption of the plug-in 19 and the card slot 20, ensuring that the opening and closing can push the plug-in 19 downward, and the same rotation force is greater than the adsorption force of the kit 5 to ensure that the rotating member 8 can be driven when rotating, and the magnetic attraction is stable after resetting to ensure that the first clamping member 10 and the second clamping member 11 are not easy to loosen when opened.

[0031] The driving wheel 12 is wound with a connecting rope 23, and a cavity 24 for accommodating the valve stem 3 is provided in the rotating member 8. The rotating member 8 is provided with an extrusion member 25 connected to the connecting rope 23 and abutting the valve stem 3 in the cavity 24. A spring 27 abutting against the valve plate and used for buffering the downward movement of the valve plate is provided at the bottom of the valve body 1. A tension spring 26 for driving the extrusion member 25 to reset is provided at the upper ends of the extrusion member 25 and the rotating member 8. At the same time, when the first clamping member 10 and the second clamping member 11 driven by the driving wheel 12 are driven to open, the transmission wheel 13 will rotate, and the rotating shaft of the transmission wheel 13 will reel up the connecting rope 23. At the same time, a cover can be added to the outside of the overall device to seal the clamping member and the controller 7 These devices, the transmission shaft is connected to the cover for rotation, or directly connected to the increased part of the valve cover 2, so that the transmission wheel 13 and the clamped rotating shaft rotate to reel up the connecting rope 23 and pull the connected extrusion member 25 downward, and at the same time stretch the tension spring 26, and the extrusion member 25 abuts on the valve stem 3 when it moves downward, and the valve stem 3 will move downward after being separated from the support of the thread of the set 5. The push of the extrusion member 25 can make the valve stem 3 move downward more smoothly and quickly, and when the valve plate and the valve plate move down to the valve body 1 to close the pipeline, they are re-embedded in the groove of the valve body 1, and the spring 27 at the bottom of the valve body 1 will abut against the valve plate, and there will be a certain buffering effect through the support of the spring 27. On the contrary, after the valve stem 3 and the valve plate are reset, the motor 2 9 is reversed, which will drive the driving wheel 12 to reset and reverse together, and drive the transmission wheel 13 at the same time, so that the transmission wheel 13 controls the bevel gear 14 to reset, thereby driving the first clamping member 10 to reset, and after the first clamping member 10 is reset, the bevel gear 2 16 will be driven to reset, and the meshing bevel gear 3 17 and bevel gear 4 18 will be driven to reset and the second clamping member 11 will also be reset, thereby the first clamping member 10 and the second clamping member 11 are reset and fit on the kit 5, and they are restricted again to ensure that the valve plate will not loosen under the impact of internal substances, and at the same time the extrusion member 25 will also be driven to reset by the tension spring 26.

[0032] The support rod 15 and the first clamping member 10 are provided with mutually conductive limit grooves 28, and the valve cover 2 is slidably connected with a limit block 29 embedded in the limit groove 28 to limit the rotation of the first clamping member 10. The valve cover 2 is provided with a release component for the limit block 29 to limit the first clamping member 10, and the release component includes a transmission wheel 2 30 that is in contact with the driving wheel 12 and is engaged with the motor 2 9, and the limit block 29 is provided with teeth 31 that mesh with the transmission wheel 2 30. The driving wheel 12 is a toothless gear, and the motor 2 9 will first drive the transmission wheel 2 30 to mesh with the teeth 31 of the limit block 29, and the thickness of the transmission wheel 2 30 is greater than that of the transmission wheel 1 13, and the position of the limit block 29 is lower than the bevel gear 1 14. Secondly, in a normal state, the limit block 29 is embedded in the limit groove 28 on the support rod 15 and the first clamping member 10, so that the first clamping member 10 is released through the interaction between the limit block 29 and the limit groove 28. The holding member 10 cannot rotate. On the contrary, after the first clamping member 10 is restricted, the second clamping member 11 cannot rotate. Due to the restriction of the first clamping member 10, the bevel gear 14 and the bevel gear 2 16 cannot rotate, so the second clamping member 11 will be restricted by the meshing bevel gear 2 16 to achieve a fixing effect. On the contrary, when it is necessary to drive the first clamping member 10 and the second clamping member 11 to open, the driving wheel 12 and the transmission wheel 2 30 will be rotated first when the motor 2 9 is driven, and the teeth of the driving wheel 12 are not completely missing, so the transmission wheel 2 30 will first mesh with the teeth 31 of the limit block 29, and drive the limit block 29 to move backward and disengage from the limit groove 28, and wait for the limit block 29 to cancel the restriction on the first clamping member 10. At this time, the driving wheel 12 is meshed with the transmission wheel 1 13, and the first clamping member 10 is controlled to rotate and the second clamping member 11 can be opened. This arrangement ensures that the loosening will not occur due to accidental touch or external touch disturbance during normal use, and when it needs to be closed quickly, the motor 2 9 can be turned on directly to automatically release it. On the contrary, when releasing, the motor 2 9 reverses, and after waiting for the first clamping member 10 and the second clamping member 11 to reset, the transmission wheel 2 30 will push the limit block 29 to re-embed into the limit groove 28, and the drive wheel 12 is connected with the rotating shaft of the motor 2 9 in a sliding manner, and the drive wheel 12 and the rotating shaft of the motor 2 9 are fixed in position by magnetic attraction. Finally, in an emergency, if the electric control fails or is damaged, it can also be adjusted manually.

[0033] After the above arrangement, if the valve plate needs to be closed urgently and the material transmission needs to be quickly cut off after the valve plate is opened by using this device, the output signal is sent to the controller 7 to control the motor 29 to start, and drive the driving wheel 12 and the transmission wheel 2 30 to rotate. The transmission wheel 2 30 first meshes with the teeth 31 of the limit block 29, drives the limit block 29 to move backward and disengage from the limit groove 28 to cancel the restriction on the first clamping member 10, and then the teeth of the driving wheel 12 will rotate to mesh with the transmission wheel 1 13 and drive the meshing bevel gear 14 to rotate, and drive the first clamping member 10. The holding member 10 rotates, and at the same time drives the bevel gear 2 16 to rotate and rotates the bevel gear 4 18 and the second clamping member 11 through the bevel gear 3 17, so that the first clamping member 10 and the second clamping member 11 are opened in different directions, driving the kit 5 to separate, thereby canceling the support and engagement of the valve stem 3, so that the valve stem 3 and the valve plate move downward, and at the same time, when the transmission wheel 1 13 rotates, it will drive the subsequent rotating shaft to pull and reel the connecting rope 23, and drive the extrusion member 25 to move downward to push the valve stem 3 downward to reset, so as to achieve the effect of quickly cutting off and closing the valve.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stainless steel signal gate valve, comprising a valve body (1), a valve cover (2), a valve stem (3), a valve plate and a hand wheel (4), characterized in that: A set (5) for accommodating the valve stem (3) to be embedded is provided between the outside of the valve cover (2) and the hand wheel (4), the set (5) being threadedly connected to the valve stem (3), a controller (7) and a motor (6) driven by the controller (7) are provided outside the valve cover (2), a rotating member (8) for driving the set (5) to rotate is provided between the upper end of the set (5) and the hand wheel (4), the rotating member (8) being connected to the motor (6), the set (5) being rotatably connected to a clamping set (5) and driving a clamping member that divides the set (5) into two halves, a motor (9) driven by the controller (7) is provided outside the valve cover (2), the clamping member is divided into a first clamping member (10) and a second clamping member (11), a driving assembly for driving the first clamping member (10) and the second clamping member (11) to open and close is provided between the motor (9) and the clamping member, and an adjusting assembly is provided between the rotating member (8) and the set (5); The driving assembly comprises a driving wheel (12) clamped with the second motor (9), the driving wheel (12) meshing with the transmission wheel (13), the first clamping member (10) is provided with a bevel gear (14) meshing with the driving wheel (12) at the uppermost end, a support rod (15) is rotatably connected between the first clamping member (10) and the second clamping member (11), the first clamping member (10) is provided with a bevel gear (16) near the second clamping member (11), the support rod (15) is provided with a bevel gear (17) meshing with the second bevel gear (16) between the first clamping member (10) and the second clamping member (11), and the second clamping member (11) is provided with a bevel gear (18) meshing with the bevel gear (17); The adjustment component comprises a plug-in (19) arranged on the kit (5); the rotating member (8) is provided with a slot (20) for accommodating the plug-in (19) to be embedded; the plug-in (19) and the rotating member (8) are connected by magnetic attraction; a surface of the plug-in (19) close to the clamping member is arranged in an arc shape, and the remaining surfaces are all vertical surfaces; the first clamping member (10) and the second clamping member (11) are provided with a protrusion (21) embedded in the kit (5); and the protrusion (21) is in a convex shape; and the kit (5) is provided with an annular groove (22) for accommodating the movement of the protrusion (21).

2. A stainless steel signal gate valve according to claim 1, characterized in that: The rotating member (8) drives the kit (5) to rotate, which ensures that the final rotation position of the kit (5) is equal to the initial position, and the surface of the slot (20) facing the plug-in (19) is also an arc surface. The kit (5) and the first clamping member (10) and the second clamping member (11) also have magnetic attraction, and the force of the rotating member (8) is greater than the force of the magnetic attraction between the kit (5) and the first clamping member (10) and the second clamping member (11), and the force of the first clamping member (10) and the second clamping member (11) opening and closing is greater than the force of the plug-in (19) and the kit (5) adsorbing.

3. A stainless steel signal gate valve according to claim 1, characterized in that: A connecting rope (23) is wound around the driving wheel (12), a cavity (24) for accommodating the valve stem (3) to be embedded is provided in the rotating member (8), and an extrusion member (25) connected to the connecting rope (23) and abutting against the valve stem (3) is provided in the rotating member (8) in the cavity (24).

4. A stainless steel signal gate valve according to claim 3, characterized in that: A spring (27) is provided at the bottom of the valve body (1) for contacting the valve plate and for buffering the downward movement of the valve plate, and a tension spring (26) is provided at the upper ends of the extrusion member (25) and the rotating member (8) for driving the extrusion member (25) to return to its original position.

5. A stainless steel signal gate valve according to claim 1, characterized in that: The support rod (15) and the first clamping member (10) are provided with mutually communicating limit grooves (28); a limit block (29) is slidably connected to the outside of the valve cover (2) and is embedded in the limit groove (28) to limit the rotation of the first clamping member (10); and a component for releasing the limit block (29) from limiting the first clamping member (10) is provided outside the valve cover (2).

6. A stainless steel signal gate valve according to claim 5, characterized in that: The release assembly comprises a second transmission wheel (30) which is fitted with the driving wheel (12) and is engaged with the second motor (9); the limit block (29) is provided with teeth (31) which mesh with the second transmission wheel (30); and the driving wheel (12) is a toothless gear.

7. A stainless steel signal gate valve according to claim 6, characterized in that: The motor 2 (9) first drives the transmission wheel 2 (30) to mesh with the teeth (31) of the limit block (29), and the thickness of the transmission wheel 2 (30) is greater than that of the transmission wheel 1 (13), and the position of the limit block (29) is lower than that of the bevel gear 1 (14).

8. A stainless steel signal gate valve according to claim 6, characterized in that: The driving wheel (12) is slidably connected to the rotating shaft of the second motor (9), and the driving wheel (12) and the rotating shaft of the second motor (9) are fixed in position by magnetic attraction.

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