Novel gate valve lead screw sleeve
The new gate valve screw sleeve's diversion and sealing design solves the problem of condensed water and dust entering, achieves protection and sealing of the steam heating valve, avoids mechanical damage and wear, and increases service life.
Patent Information
- Application Number
- CN202422945705.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-29
AI Technical Summary
During the use of existing steam heating valves, the large temperature difference between the inside and outside causes condensed water to enter the screw sleeve, resulting in gearbox oil emulsification and excessive output force of the electric actuator. In addition, the valve has poor sealing and is easily damaged. Dust entering the valve accelerates wear.
A new gate valve screw sleeve was designed, which included a guide cover, a sealing ring, a collection box and an indicating mechanism. Condensed water was introduced into the collection box through the guide groove and the water guide hole. The sealing cover was controlled by a micro motor to release the condensed water, thus achieving a fully sealed state and preventing sand and dust from entering. The indicator scale was used to observe the switching degree.
Effectively prevent condensed water from entering the gearbox and electric actuator, prevent oil emulsification and freezing, reduce sand and dust wear, ensure valve sealing, and extend service life.
Smart Images
Figure CN223388134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gate valves, in particular to a novel gate valve screw sleeve. Background Art
[0002] The steam heating valve used in winter is a gate valve, which is mainly composed of valve body shell, screw rod, screw rod sleeve, gear box, electric actuator and hand wheel, etc., and is used to control the on and off of steam in the pipeline.
[0003] At present, during the use of steam heating valves, the temperature difference between the inside and outside is large, and condensation water is easily formed on the screw sleeve. The condensation water will enter the screw through the screw sleeve and flow into the gear box and electric actuator through the screw. It will not only cause the oil inside the gear box to emulsify, but the low temperature environment will cause the water to freeze, resulting in excessive output force of the electric actuator, which can easily cause damage to the valve body. In addition, the screw sleeve has poor sealing performance. Sand and dust entering the screw sleeve can easily accelerate the wear of the valve body and make it difficult to see the opening and closing degree of the screw. Therefore, a new type of gate valve screw sleeve is needed to meet the use requirements. Utility Model Content
[0004] The purpose of the utility model is to provide a novel gate valve screw sleeve to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a novel gate valve screw sleeve, comprising a steam gate valve, the steam gate valve being provided with a housing, a screw rod, a gear box, an electric actuator and a hand wheel, a flow guide cover being fixedly mounted on the housing, a screw rod sleeve being sleeved on the screw rod, a bottom of the screw rod sleeve being fixedly mounted on the flow guide cover, a sealing ring being fixedly mounted inside the flow guide cover, an upwardly inclined drainage groove being provided on the flow guide cover, a water guide hole being provided at the bottom of the screw rod sleeve, the upwardly inclined drainage groove corresponding to the water guide hole, A guide pipe is fixedly installed at the water outlet of the water guide hole, a straightening ring is fixedly sleeved on the guide cover, the other end of the guide pipe is arranged in the straightening ring, a diversion pipe is fixedly installed at the bottom of the straightening ring, a collecting box is fixedly installed at the bottom of the guide cover, the other end of the diversion pipe is fixedly installed in the collecting box, a drainage hole is opened at the bottom of the collecting box, a sealing cover is provided on the drainage hole, a sealing cover adjustment mechanism is provided on the collecting box and the sealing cover, and an indicating mechanism is provided on the screw rod and the screw rod sleeve.
[0006] Preferably, an outer surface of the screw sleeve is provided with an indicating scale, and an indicating block is fixedly mounted on the top end of the screw, and the indicating block corresponds to the indicating scale.
[0007] Preferably, the sealing cover adjustment mechanism includes a pull rod fixedly mounted on the sealing cover, a connecting rod is rotatably mounted on the pull rod, a support plate is fixedly mounted on the outer shell, a micro motor is fixedly mounted on the support plate, a turntable is fixedly mounted on the output end of the micro motor, and the connecting rod is rotatably mounted on the turntable.
[0008] Preferably, a guide groove is provided on the bottom surface of the collecting box, a guide block is fixedly mounted on the bottom of the pull rod, and the guide block is slidably mounted in the guide groove.
[0009] Preferably, a microcontroller is provided at the bottom of the collection box, and a liquid level sensor is provided inside the collection box.
[0010] Preferably, a supporting oblique rod is fixedly mounted on the shell, a guide slide is fixedly mounted on the supporting oblique rod, and the drainage hole corresponds to the guide slide.
[0011] The beneficial effects of the utility model are:
[0012] In the utility model, through the arrangement of the deflector cover, sealing ring, collecting box, indicating mechanism and other structures, when the condensed water accumulates to a certain amount, it will flow down from the inner wall of the screw sleeve, and enter the collecting box through the diversion pipe under the guidance of the deflector cover for collection, thereby preventing the condensed water from entering the gear box and the electric actuator through the screw, avoiding the emulsification and freezing of the engine oil in the gear box, resulting in excessive force of the electric actuator and damage to the steam gate valve. The indicating position of the indicator block on the indicating scale can be used to observe the switching degree of the screw, and the screw sleeve is in a fully sealed state, and is only briefly connected to the outside during drainage, which can effectively prevent the entry of sand and dust, avoid increased friction due to sand and dust, and accelerate the wear of the steam gate valve.
[0013] In the utility model, through the drainage hole, guide slide and other structural settings, the rotation of the micro motor will drive the guide block to move, the movement of the guide block will drive the sealing cover to move, the movement of the sealing cover is misaligned with the drainage hole, and the condensed water collected in the collection box can be released through the drainage hole. The released condensed water will enter the guide slide through the drainage hole and be discharged through the guidance of the guide slide, so as to avoid the condensed water being discharged on the steam gate valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a new gate valve screw sleeve proposed in the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of a new gate valve screw sleeve, a guide slide, etc.
[0016] Figure 3 This is a schematic diagram of the enlarged structure of part A of a new gate valve screw sleeve proposed in the utility model;
[0017] Figure 4 This is a schematic diagram of the structure of a new gate valve screw sleeve, including a rectifying ring and a pull rod;
[0018] Figure 5 This is a schematic diagram of the structure of a connecting rod, sealing cover, etc. of a new gate valve screw sleeve proposed in this utility model;
[0019] Figure 6 This is a schematic diagram of the structure of a new gate valve screw sleeve, including a diverter pipe and a collecting box.
[0020] In the figure: 1. Steam gate valve; 2. Housing; 3. Screw; 4. Gearbox; 5. Electric actuator; 6. Handwheel; 7. Flow guide cover; 8. Screw sleeve; 9. Sealing ring; 10. Upward inclined drain trough; 11. Water guide hole; 12. Diversion pipe; 13. Rectifier ring; 14. Diverter pipe; 15. Collecting box; 16. Drain hole; 17. Sealing cover; 18. Indicating mechanism; 181. Indicating scale; 182. Indicating block; 19. Sealing cover adjustment mechanism; 191. Pull rod; 192. Connecting rod; 193. Support plate; 194. Micro motor; 195. Turntable; 196. Guide block; 197. Guide groove; 198. Microcontroller; 199. Liquid level sensor; 20. Support inclined rod; 21. Diversion slide. DETAILED DESCRIPTION
[0021] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0022] Example:
[0023] like Figure 1-6As shown, this embodiment provides a new gate valve screw sleeve, including a steam gate valve 1, which is provided with a housing 2, a screw rod 3, a gear box 4, an electric actuator 5 and a handwheel 6. A deflector 7 is fixedly installed on the housing 2, a screw rod sleeve 8 is sleeved on the screw rod 3, the bottom of the screw rod sleeve 8 is fixedly installed on the deflector 7, a sealing ring 9 is fixedly installed in the deflector 7, an upward inclined drainage groove 10 is opened on the deflector 7, a water guide hole 11 is opened at the bottom of the screw rod sleeve 8, the upward inclined drainage groove 10 corresponds to the water guide hole 11, and the water outlet of the water guide hole 11 is fixed. A guide tube 12 is fixedly installed, a fairing ring 13 is fixedly sleeved on the guide cover 7, the other end of the guide tube 12 is arranged in the fairing ring 13, a shunt tube 14 is fixedly installed at the bottom of the fairing ring 13, a collection box 15 is fixedly installed at the bottom of the guide cover 7, the other end of the shunt tube 14 is fixedly installed in the collection box 15, a drainage hole 16 is opened at the bottom of the collection box 15, a sealing cover 17 is provided on the drainage hole 16, a sealing cover adjustment mechanism 19 is provided on the collection box 15 and the sealing cover 17, and an indicating mechanism 18 is provided on the screw rod 3 and the screw rod sleeve 8;
[0024] When in use, the gear box 4 can be driven to operate by rotating the hand wheel 6. The operation of the gear box 4 can drive the screw rod 3 to move up and down and adjust the opening and closing of the steam gate valve 1. The activity of the gear box 4 can also be adjusted by the electric actuator 5 to adjust the up and down movement of the screw rod 3 to realize the electric opening and closing of the steam gate valve 1. It should be noted that the working principle and specific mechanism involved in this process are existing technologies and are not described in detail here. When condensed water is formed in the screw rod sleeve 8, the condensed water accumulates to a certain amount and flows down from the inner wall of the screw rod sleeve 8. The screw rod sleeve 8 is installed on the guide cover 7. The condensed water flowing down will enter the guide pipe 12 through the water guide hole 11. A very small amount of condensed water also drips onto the top of the guide cover 7. The sealing ring 9 can prevent the dripping condensed water from entering the gear box 4 and the electric actuator 5 through the screw rod 3, and the condensed water will enter the outer peripheral surface of the guide cover 7 through the upward inclined drainage groove 10, and enter the guide pipe 12 again through the water guide hole 11 under the guidance of the guide cover 7, thereby The condensed water is fully channeled, and the condensed water entering the guide pipe 12 will flow into the rectifying ring 13 for collection, and then enter the collection box 15 through the diversion pipe 14 for collection again. When the condensed water collected in the collection box 15 reaches a certain liquid level, the sealing cover adjustment mechanism 19 will adjust the sealing cover 17 to move, and separate the sealing cover 17 from the drain hole 16. At this time, the condensed water stored in the collection box 15 will be discharged through the drain hole 16, thereby preventing the condensed water from entering the gear box 4 and the electric actuator 5 through the screw rod 3, avoiding the emulsification and freezing of the engine oil in the gear box 4, causing the excessive force of the electric actuator 5 to damage the steam gate valve 1. When the screw rod 3 moves up and down, the indicator mechanism 18 can mark the amount of movement of the screw rod 3, and the switching degree of the screw rod 3 can be clearly observed. The screw rod sleeve 8 is in a fully sealed state and is only briefly connected to the outside during drainage, which can effectively prevent the entry of sand and dust, avoid increased friction due to sand and dust, and accelerate the wear of the steam gate valve 1.
[0025] In the embodiment of the present utility model, specifically, the outer surface of the screw sleeve 8 is provided with an indicator scale 181, and the top end of the screw 3 is fixedly mounted with an indicator block 182, and the indicator block 182 corresponds to the indicator scale 181;
[0026] In order to facilitate the observation of the switching degree of the screw rod 3, when the screw rod 3 moves up and down, it will drive the indicator block 182 to move up and down. The indicator block 182 corresponds to the indicator scale 181 on the screw rod sleeve 8. The switching degree of the screw rod 3 can be observed through the indicating position of the indicator block 182 on the indicator scale 181.
[0027] In the embodiment of the present utility model, specifically, the sealing cover adjustment mechanism 19 includes a pull rod 191 fixedly mounted on the sealing cover 17, a connecting rod 192 is rotatably mounted on the pull rod 191, a support plate 193 is fixedly mounted on the housing 2, a micro motor 194 is fixedly mounted on the support plate 193, a rotary disk 195 is fixedly mounted on the output end of the micro motor 194, and the connecting rod 192 is rotatably mounted on the rotary disk 195;
[0028] In order to discharge the condensed water collected in the collection box 15, when the condensed water collected in the collection box 15 reaches the sensing liquid level, the micro motor 194 on the support plate 193 will rotate, and the rotation of the micro motor 194 will drive the turntable 195 to rotate, and the rotation of the turntable 195 will drive the connecting rod 192 to rotate, and the rotation of the connecting rod 192 will drive the guide block 196 to move, and the movement of the guide block 196 will drive the sealing cover 17 to move. The movement of the sealing cover 17 is misaligned with the drain hole 16, and the condensed water collected in the collection box 15 can be released through the drain hole 16.
[0029] In the embodiment of the present invention, specifically, a guide groove 197 is formed on the bottom surface of the collection box 15 , and a guide block 196 is fixedly installed on the bottom of the pull rod 191 , and the guide block 196 is slidably installed in the guide groove 197 ;
[0030] In order to guide the movement of the pull rod 191, the guide block 196 is slidably installed in the guide groove 197, which can guide the movement of the pull rod 191 so that the pull rod 191 can only move but not rotate.
[0031] In the embodiment of the present invention, further, a microcontroller 198 is provided at the bottom of the collection box 15, and a liquid level sensor 199 is provided inside the collection box 15;
[0032] When the liquid level of the condensed water in the collection box 15 reaches the position of the liquid level sensor 199, the liquid level sensor 199 will transmit the liquid level signal to the microcontroller 198, and the microcontroller 198 will control the micro motor 194 to start and release the condensed water collected in the collection box 15. It should be noted that the microcontroller 198 and the liquid level sensor 199 are existing electronic components, and the specific structure, control process and control principle will not be repeated here.
[0033] In the embodiment of the present utility model, further, a supporting inclined rod 20 is fixedly mounted on the housing 2, a diversion slide 21 is fixedly mounted on the supporting inclined rod 20, and the drainage hole 16 corresponds to the diversion slide 21;
[0034] In order to guide the released condensed water, the released condensed water will enter the guide slide 21 through the drainage hole 16 and be discharged through the guide slide 21 to avoid the condensed water being discharged on the steam gate valve 1.
[0035] Working principle: When condensed water forms in the screw sleeve 8, the condensed water accumulates to a certain amount and flows down from the inner wall of the screw sleeve 8. The screw sleeve 8 is installed on the guide cover 7. The condensed water flowing down will enter the guide pipe 12 through the water guide hole 11. A very small amount of condensed water will also drip onto the top of the guide cover 7. The sealing ring 9 can prevent the dripping condensed water from entering the gear box 4 and the electric actuator 5 through the screw 3. The condensed water will enter the outer peripheral surface of the guide cover 7 through the upward drainage groove 10 and pass through the water guide hole 1 again under the guidance of the guide cover 7. 1 enters the guide pipe 12, so that the formed condensed water can be fully dredged. The condensed water entering the guide pipe 12 will flow into the rectifying ring 13 for collection, and then enter the collection box 15 through the shunt pipe 14 for collection. When the liquid level of the condensed water in the collection box 15 reaches the position of the liquid level sensor 199, the liquid level sensor 199 will transmit the liquid level signal to the microcontroller 198, and the microcontroller 198 will control the micro motor 194 to turn on. The rotation of the micro motor 194 will drive the turntable 195 to rotate, and the turntable 195 will rotate. The movement of the connecting rod 192 will drive the guide block 196 to move, and the movement of the guide block 196 will drive the sealing cover 17 to move. The movement of the sealing cover 17 is misaligned with the drainage hole 16, and the condensed water collected in the collection box 15 can be released through the drainage hole 16. The released condensed water will enter the guide slide 21 through the drainage hole 16 and be discharged through the guide of the guide slide 21, so as to avoid the condensed water being discharged on the steam gate valve 1, and then prevent the condensed water from entering the gear box 4 and the electric actuator 5 through the screw rod 3, and avoid The oil in the gear box 4 is emulsified and frozen, resulting in excessive force on the electric actuator 5, which damages the steam gate valve 1. When the screw 3 moves up and down, it will drive the indicator block 182 to move up and down. The indicator block 182 corresponds to the indicator scale 181 on the screw sleeve 8. The switching degree of the screw 3 can be observed by the indicating position of the indicator block 182 on the indicator scale 181. The screw sleeve 8 is in a fully sealed state and is only briefly connected to the outside during drainage, which can effectively prevent the entry of sand and dust, avoid increased friction due to sand and dust, and accelerate the wear of the steam gate valve 1.
[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A novel gate valve screw sleeve, comprising a steam gate valve (1), wherein the steam gate valve (1) is provided with a housing (2), a screw rod (3), a gear box (4), an electric actuator (5) and a hand wheel (6), and is characterized in that: A deflector (7) is fixedly mounted on the housing (2), a screw rod sleeve (8) is sleeved on the screw rod (3), the bottom of the screw rod sleeve (8) is fixedly mounted on the deflector (7), a sealing ring (9) is fixedly mounted inside the deflector (7), an upward-inclined drainage groove (10) is provided on the deflector (7), a water guide hole (11) is provided at the bottom of the screw rod sleeve (8), the upward-inclined drainage groove (10) corresponds to the water guide hole (11), a deflector pipe (12) is fixedly mounted at the water outlet of the water guide hole (11), a rectifying ring (13) is fixedly sleeved on the deflector (7), and the deflector pipe The other end of the shunt pipe (12) is arranged in the rectifying ring (13), a shunt pipe (14) is fixedly installed on the bottom of the rectifying ring (13), a collecting box (15) is fixedly installed on the bottom of the guide cover (7), the other end of the shunt pipe (14) is fixedly installed in the collecting box (15), a drainage hole (16) is opened at the bottom of the collecting box (15), a sealing cover (17) is arranged on the drainage hole (16), a sealing cover adjustment mechanism (19) is arranged on the collecting box (15) and the sealing cover (17), and an indicating mechanism (18) is arranged on the screw rod (3) and the screw rod sleeve (8).
2. A new gate valve screw sleeve according to claim 1, characterized in that: An outer surface of the screw sleeve (8) is provided with an indicating scale (181), and an indicating block (182) is fixedly mounted on the top end of the screw (3), wherein the indicating block (182) corresponds to the indicating scale (181).
3. The novel gate valve screw sleeve according to claim 1 is characterized in that: The sealing cover adjustment mechanism (19) comprises a pull rod (191) fixedly mounted on the sealing cover (17); a connecting rod (192) is rotatably mounted on the pull rod (191); a support plate (193) is fixedly mounted on the housing (2); a micro motor (194) is fixedly mounted on the support plate (193); a turntable (195) is fixedly mounted on the output end of the micro motor (194); and the connecting rod (192) is rotatably mounted on the turntable (195).
4. A new gate valve screw sleeve according to claim 3, characterized in that: A guide groove (197) is provided on the bottom surface of the collection box (15), and a guide block (196) is fixedly installed on the bottom of the pull rod (191), and the guide block (196) is slidably installed in the guide groove (197).
5. A new gate valve screw sleeve according to claim 4, characterized in that: A microcontroller (198) is provided at the bottom of the collection box (15), and a liquid level sensor (199) is provided inside the collection box (15).
6. The novel gate valve screw sleeve according to claim 1 is characterized in that: A supporting oblique rod (20) is fixedly mounted on the housing (2), a diversion slideway (21) is fixedly mounted on the supporting oblique rod (20), and the drainage hole (16) corresponds to the diversion slideway (21).