Valve driving cap and extension rod connecting structure and method

Abstract

The invention discloses a valve driving cap and extension rod connecting structure and method, the valve driving cap and extension rod connecting structure is applied to an underground valve, the underground valve comprises a valve body, a valve driving cap, an extension rod and a driving disc, the driving disc rotates to drive the valve body to be opened and closed through transmission of the extension rod, and the connecting structure comprises a connecting disc; a plurality of positioning lock grooves are formed in the outer side wall of the connecting disc, the connecting disc is fixedly connected with the valve driving cap, the extension rod is a hydraulic hose, a hydraulic box is arranged at one end of the extension rod, a fixedly-connected connecting box is arranged at the other end of the extension rod, and the other end of the connecting box is fixedly connected with the valve body. A first driving block capable of moving back and forth in the mode of being attached to the outer side wall is arranged on the outer side of the connecting disc, and a telescopic positioning spring bolt capable of switching the cambered surface orientation is arranged on the first driving block. The problem that in an original buried valve, the connecting position between the driving cap and the extension rod is prone to shaking and instability is solved, and the problem that the extension rod is too long, and the force cannot be effectively controlled is effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of valve production and processing, and in particular relates to a valve drive cap and an extension rod connection structure and method. Background Art

[0002] Because buried valves are a certain distance from the ground, in order to facilitate the operation of valve opening and closing, an extension rod is usually required. The valve is driven by driving the driving cap on the top of the extension rod. The extension rod usually uses a standard square steel pipe. The square steel pipe is sleeved on the four square protrusions on the top of the driving cap to drive the valve stem to open and close. In order to prevent the driving cap and the square steel pipe from falling off and affecting the valve operation, the extension rod and the driving cap need to be fixed. The traditional fixing method is to use a split pin to fix between the square steel pipe and the driving cap. The split pin fixes the driving cap and the extension rod. The punching gap is difficult to control, and the connection between the two is easy to shake and unstable. When the position is offset, the split pin is subject to shear force and is easy to break. At the same time, once the extension rod is too long, the extension rod cannot stably open and close the valve due to material limitations. Moreover, when the extension rod is too long, the rotation torque cannot be stably controlled, resulting in the valve being screwed.

[0003] Therefore, the existing structure and defects are studied and improved, and a valve drive cap and extension rod connection structure and method are provided, in order to achieve a more practical purpose. Summary of the invention

[0004] In view of at least one problem in the prior art, an object of the present invention is to provide a valve drive cap and an extension rod connection structure and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A valve drive cap and extension rod connection structure is used on a buried valve. The buried valve includes a valve body, a valve drive cap, an extension rod and a drive disk. The valve drive cap is connected to the valve stem in the valve body. After the drive disk rotates, the valve body is driven to open and close through the transmission of the extension rod. The connection structure includes a connection disk. The outer side wall of the connection disk is provided with a plurality of evenly distributed positioning lock grooves, and the connection disk is fixedly connected to the valve drive cap. The extension rod is a hydraulic hose, and a connected hydraulic box is provided at one end of the extension rod. A hydraulic plate that is slidably and sealed is provided in the hydraulic box. A drive shaft is provided in the middle of the drive disk. The drive shaft passes through the hydraulic plate. A reciprocating thread connected to the hydraulic plate is provided, and the other end of the extension rod is provided with a fixedly connected connecting box, and the other end of the connecting box is fixedly connected to the valve body, and a first driving block that can move back and forth in contact with the outer wall is provided on the outer side of the connecting disk, and a retractable and switchable arc surface orientation positioning lock tongue is provided on the first driving block, and the positioning lock tongue can be connected with the positioning lock groove after being extended, and a fixedly connected first driving plate is provided in the connecting box, and a first driving groove is provided in the first driving plate, and a first driving rod that is slidably and sealingly connected is provided in the first driving groove, and the first driving rod is used to drive the first driving block to reciprocate, and the extension rod is connected to the first driving groove.

[0006] Preferably, an adjustment groove is provided in the first driving block, a slidably connected adjustment block is provided in the adjustment groove, two adjacently distributed positioning grooves are provided on one side of the adjustment block, the positioning lock tongue includes two positioning sub-lock tongues, the positioning sub-lock tongues are respectively slidably connected in the positioning grooves, an ejection spring is provided in the positioning groove for driving the positioning sub-lock tongue to automatically pop out, the arc surfaces of the positioning sub-lock tongues face opposite directions, an adjustment hole connected to the adjustment groove and used for the positioning sub-lock tongue to automatically pop out is provided on one side of the first driving block, and a first hydraulic rod is provided in the adjustment groove for driving the adjustment block to reciprocate.

[0007] Preferably, a second driving block is also provided on the outer side of the connecting disk, which can move back and forth in close contact with the outer wall. The second driving block is provided with a retractable positioning lock tongue with a switchable arc surface direction. The second driving block moves synchronously with the first driving block, and the movement directions of the second driving block and the first driving block are opposite. After the positioning lock tongue is extended, it can be engaged with the positioning lock groove.

[0008] Preferably, a fixedly connected second driving plate is provided in the connection box, a driving groove is provided at the bottom of the second driving plate, a driving slider which can move back and forth is provided in the driving groove, the driving slider is used to drive the second driving block to reciprocate, a second driving groove is provided on one side of the driving groove, a second driving rod which is slidably and sealedly connected is provided in the second driving groove, and the second driving rod is arranged in the second driving groove so as to move back and forth.

[0009] Preferably, a linkage groove is provided in the first driving plate, a linkage plate is provided in the linkage groove which is slidably and sealedly connected, a linkage rod is provided at one end of the linkage plate, an end of the linkage rod movably passes through the linkage groove and is fixedly connected to the end of the first driving rod, a connecting hole is provided at the outlet of the other end of the linkage groove, a connecting pipe connected to the connecting hole is provided on the first driving plate, an extending end of the connecting pipe is connected to the inlet of the second driving groove, a first buffer groove is provided in the first driving plate, a first buffer plate is provided in the first buffer groove which is slidably and sealedly connected, and a first buffer spring for driving the first buffer plate to automatically reset is provided in the first buffer groove, The first buffer groove outlet is provided with a first hole connected with the first driving groove and can be selectively opened and closed, the other side of the driving slide groove is provided with a connected third driving groove, the third driving groove is provided with a third driving rod that is slidably and sealedly connected, the second driving plate is provided with a second buffer groove, the second driving plate is provided with a second buffer groove, the second buffer groove is provided with a second buffer plate that is slidably and sealedly connected, and the second buffer groove is provided with a second buffer spring for driving the second buffer plate to automatically reset, the second buffer groove outlet is provided with a second hole connected with the third driving groove and can be selectively opened and closed, and the end of the extension rod is selectively connected with the first driving groove and the third driving groove.

[0010] Preferably, an adjusting box is provided in the connecting box, and an adjusting slider which is slidably and sealed is provided in the adjusting box, and the adjusting slider can be arranged in the adjusting box to move back and forth, a first guide groove is provided at one end of the adjusting slider, and a through-type second guide groove is provided on one side of the adjusting slider, and the second guide groove crosses the first guide groove, a first connected tube is provided at one end of the adjusting box, and a second connected tube is provided at the other end of the adjusting box, the first tube and the second tube are staggered, and the second guide groove is used for selective connection of the first tube and the second tube, the first tube is connected to the inlet of the first drive groove, and the second tube is connected to the inlet of the third drive groove, and the extension rod is connected to one end of the adjusting box, and the extension rod is located at the inlet of the first guide groove.

[0011] Preferably, the first hole and the second hole are both provided with an adapter groove, the adapter grooves both cross the corresponding first hole and the second hole, and a sliding and sealed adapter plate is provided in the adapter groove, the adapter plate can be movably arranged in the adapter groove, and a through-type adapter hole for connection is provided on the adapter plate.

[0012] Preferably, a threaded groove is provided in the middle of the driving disk, a threaded rod is provided in the threaded groove, a connected and bendable connecting piece is provided at the end of the threaded rod, an extending end of the connecting piece movably passes through the adjusting box and is connected to the adjusting slider, a reset spring is provided in the adjusting box for driving the adjusting block to automatically restore the initial position, a first hose which is connected and retractable in length is provided at the other end of the adjusting box, an extending end of the hose is connected to the first hydraulic rod, two connected transfer tubes are also provided at the other end of the adjusting box, a second hydraulic rod for driving the transfer plate to reciprocate is provided in the transfer groove, and the two transfer tubes are respectively connected to the corresponding second hydraulic rods.

[0013] Preferably, a rotatable and sealed spring hose is provided on the drive shaft, the other end of the spring hose is fixedly connected to the hydraulic plate, a connecting groove for connecting the extension rod with the hydraulic box is provided on the drive shaft, the extension rod and the drive shaft are rotatably and sealed, the connecting piece is arranged in the extension rod, and the end of the connecting piece is movably and sealedly connected to pass through the middle of the drive shaft.

[0014] A method for using a valve drive cap and an extension rod connection structure, using the valve drive cap and an extension rod connection structure, comprising the following steps: S1 connects and fixes the connection box to the valve body, and at the same time connects and fixes the connection plate to the valve drive cap; S2 When the valve needs to be opened, the arc surface of the positioning lock tongue is controlled to face the direction of valve closing, and then the hydraulic plate is controlled to periodically reciprocate by rotating the driving disk. The first driving block is made to periodically reciprocate along the connecting disk by means of hydraulic transmission of the extension rod. The positioning lock tongue is made to continuously drive the connecting disk to rotate in the direction of valve opening by utilizing the retractable and arc surface characteristics of one side, thereby realizing the automatic opening of the valve; S3 When the valve needs to be closed, the arc surface of the positioning lock tongue is controlled to face the direction of full valve opening, and then the hydraulic plate is controlled to periodically reciprocate by rotating the drive disk. The first drive block is made to periodically reciprocate along the connecting disk by means of hydraulic transmission of the extension rod. The positioning lock tongue is retractable and has the characteristics of the arc surface on one side, so that the positioning lock tongue can continuously drive the connecting disk to rotate in the direction of valve closing, thereby realizing automatic opening of the valve.

[0015] Compared with the prior art, the present invention has the following technical effects: The connecting disk, the first drive block, the positioning lock tongue, the hydraulic box, the hydraulic plate and the extension rod are designed with a hydraulic hose. The original rod transmission mode is changed through hydraulic transmission. The reciprocating motion of the hydraulic plate in the hydraulic box enables the hydraulic transmission to drive the first drive block to periodically reciprocate on the outside of the connecting disk. Combined with the retractable and switchable arc surface design of the positioning lock tongue, the positioning lock tongue can drive the connecting disk to rotate forward and backward, thereby realizing the opening and closing of the valve. The user can open the valve only by rotating the driving disk. This design solves the problem of unstable shaking at the connection between the driving cap and the extension rod in the original buried valve, and effectively eliminates the problem of the extension rod being too long and the force being unable to be effectively controlled.

[0016] With reference to the following description and the accompanying drawings, the specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0017] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0018] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure provided by the present invention.

[0021] Figure 2 This is a schematic diagram of the three-dimensional connection structure of the connection box and the connection plate provided by the present invention.

[0022] Figure 3 This is a schematic diagram of the three-dimensional connection structure of the connection disk, the first driving block and the second driving block provided by the present invention.

[0023] Figure 4 A cross-sectional view of the limiting ring groove provided by the present invention.

[0024] Figure 5This is a schematic diagram of the cross-sectional structure of the adjustment block provided by the present invention.

[0025] Figure 6 This is a schematic diagram of the cross-sectional connection structure of the first driving plate and the second driving plate provided by the present invention.

[0026] Figure 7 This is a schematic diagram of the cross-sectional connection structure of the regulating box provided by the present invention.

[0027] Figure 8 This is a schematic diagram of the cross-sectional structure of the adapter slot provided by the present invention.

[0028] Fig. 9 This is a schematic diagram of the cross-sectional connection structure of the hydraulic box and the drive disc provided by the present invention.

[0029] Explanation of the reference numerals in the figure: 1. valve body; 2. connection box; 20. positioning lock tongue; 201. positioning sub-lock tongue; 202. ejection spring; 203. positioning groove; 204. adjusting block; 21. first driving block; 211. first transmission rod; 212. first slide groove; 213. adjusting groove; 214. first hydraulic rod; 215. adjusting hole; 22. second driving block; 221. second transmission rod; 222. second slide groove; 23. second driving plate; 231. second driving groove; 232. second driving rod; 233. driving slide groove; 234. third driving groove; 235. third driving rod; 236. second buffer plate; 237. second buffer groove; 238. second buffer spring; 239. driving slider; 24. first driving plate; 241. first driving rod; 242. first driving groove; 24 3. First buffer spring; 244. First buffer groove; 245. First buffer plate; 246. Linkage plate; 247. Linkage groove; 248. Connecting hole; 25. Connecting pipe; 26. Adjusting box; 261. First pipe; 262. Second pipe; 263. First hose; 264. Transfer pipe; 265. Reset spring; 266. Second guide groove; 267. First guide groove; 268. Adjusting slider; 27. Connecting plate; 271. Positioning lock groove; 28. Limiting ring groove; 29. ​​Transfer groove; 291. Second hydraulic rod; 292. Transfer hole; 293. Transfer plate; 3. Extension rod; 4. Hydraulic box; 41. Drive shaft; 411. Threaded groove; 42. Drive plate; 421. Threaded rod; 43. Connecting piece; 44. Reciprocating thread; 45. Spring hose; 46. Connecting groove; 47. Hydraulic plate. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig. 9A valve drive cap and extension rod connection structure is applied to a buried valve. The buried valve includes a valve body 1, a valve drive cap, an extension rod 3 and a drive disk 42. The valve drive cap is connected to the valve stem in the valve body 1. After the drive disk 42 rotates, the valve body 1 is driven to open and close through the transmission of the extension rod 3. The connection structure includes a connection disk 27. The outer wall of the connection disk 27 is provided with a plurality of evenly distributed positioning lock grooves 271, and the connection disk 27 is fixedly connected to the valve drive cap. The extension rod 3 is a hydraulic hose, and a hydraulic box 4 is connected to one end of the extension rod 3. A hydraulic plate 47 is provided in the hydraulic box 4 for sliding and sealing connection. A drive shaft 41 is provided in the middle of the drive disk 42. The drive shaft 41 passes through the hydraulic plate 47, and the drive shaft 41 is connected to the hydraulic plate 47. 7 is provided with a reciprocating thread 44 connected thereto, the other end of the extension rod 3 is provided with a fixedly connected connecting box 2, the other end of the connecting box 2 is fixedly connected to the valve body 1, the outer side of the connecting disk 27 is provided with a first driving block 21 that can move back and forth in contact with the outer wall, the first driving block 21 is provided with a retractable and switchable arc surface orientation positioning lock tongue 20, the positioning lock tongue 20 can be connected with the positioning lock groove 271 after being extended, a fixedly connected first driving plate 24 is provided in the connecting box 2, a first driving groove 242 is provided in the first driving plate 24, a first driving groove 242 is provided in the first driving groove 242, a first driving rod 241 that is slidably and sealingly connected is provided in the first driving rod 241, the first driving rod 241 is used to drive the first driving block 21 to reciprocate, and the extension rod 3 is connected to the first driving groove 242.

[0034] The connecting disk 27, the first driving block 21, the positioning lock tongue 20, the hydraulic box 4, the hydraulic plate 47 and the extension rod 3 are designed with a hydraulic hose. Through the hydraulic transmission, the original rod transmission mode is changed. The hydraulic plate 47 moves back and forth in the hydraulic box 4, so that the hydraulic transmission drives the first driving block 21 to periodically reciprocate on the outside of the connecting disk 27. Combined with the retractable and switchable arc surface design of the positioning lock tongue 20, the positioning lock tongue 20 can drive the connecting disk 27 to rotate forward and backward, thereby realizing the opening and closing of the valve. The user only needs to rotate the driving disk 42 to open the valve. Such a design solves the problem that the connection between the driving cap and the extension rod 3 in the original buried valve is easy to shake and unstable, and effectively eliminates the problem that the extension rod 3 is too long and the force cannot be effectively controlled.

[0035] A method for using a valve drive cap and an extension rod connection structure, using the valve drive cap and an extension rod connection structure, comprising the following steps: S1 connects and fixes the connection box 2 to the valve body 1, and connects and fixes the connection plate 27 to the valve drive cap; S2 When the valve needs to be opened, the arc surface of the positioning lock tongue 20 is controlled to face the direction of valve closing, and then the hydraulic plate 47 is controlled to periodically reciprocate by rotating the driving disk 42. The first driving block 21 is made to periodically reciprocate along the connecting disk 27 by means of hydraulic transmission of the extension rod 3. By utilizing the retractable and arc surface characteristics of the positioning lock tongue 20, the positioning lock tongue 20 can continuously drive the connecting disk 27 to rotate in the direction of valve opening, thereby realizing automatic opening of the valve; S3 When the valve needs to be closed, the arc surface of the positioning lock tongue 20 is controlled to face the direction of the valve full opening, and then the hydraulic plate 47 is controlled to periodically reciprocate by rotating the drive disk 42. The first drive block 21 is made to periodically reciprocate along the connecting disk 27 by means of hydraulic transmission of the extension rod 3. By utilizing the retractable and arc-shaped characteristics of the positioning lock tongue 20, the positioning lock tongue 20 can continuously drive the connecting disk 27 to rotate in the direction of valve closing, thereby realizing automatic opening of the valve.

[0036] In this example, see Figure 5 The first driving block 21 is provided with an adjusting groove 213, and a slidingly connected adjusting block 204 is provided in the adjusting groove 213. Two adjacently distributed positioning grooves 203 are provided on one side of the adjusting block 204. The positioning lock tongue 20 includes two positioning sub-lock tongues 201, and the positioning sub-lock tongues 201 are respectively slidably connected in the positioning grooves 203. An ejection spring 202 for driving the positioning sub-lock tongue 201 to automatically pop out is provided in the positioning groove 203. The arc surfaces of the positioning sub-lock tongue 201 face opposite directions. An adjusting hole 215 connected to the adjusting groove 213 and used for automatically popping out the positioning sub-lock tongue 201 is provided on one side of the first driving block 21. A first hydraulic rod 214 for driving the adjusting block 204 to reciprocate is provided in the adjusting groove 213.

[0037] By extending and retracting the first hydraulic rod 214, the adjusting block 204 is driven to move back and forth, and the ejection spring 202 is cooperated so that the positioning sub-locking tongues 201 with different arc surface directions can be extended alternately. This design realizes the retractability and switchable arc surface direction of the positioning lock tongue 20, so that the positive and negative rotation of the connecting disk 27 can be realized through the positioning sub-locking tongues 201 with different arc surface directions.

[0038] In this example, see Figure 2 , Figure 3 , Figure 4The outer side of the connection disk 27 is also provided with a second driving block 22 that can move back and forth in close contact with the outer wall. The second driving block 22 is provided with a positioning lock tongue 20 that is retractable and can switch the direction of the arc surface. The second driving block 22 moves synchronously with the first driving block 21, and the second driving block 22 and the first driving block 21 move in opposite directions. After the positioning lock tongue 20 is extended, it can be engaged with the positioning lock groove 271. Among them, the positioning lock tongue 20 and the positioning lock tongue 20 have the same structure.

[0039] Due to the characteristics of the first drive block 21 and the positioning lock tongue 20, the positioning lock tongue 20 will drive the connecting disk 27 to rotate only when the first drive block 21 moves in one direction, and the positioning lock tongue 20 will not drive the connecting disk 27 to rotate when the first drive block 21 moves back in the opposite direction. Therefore, the connecting disk 27 rotates intermittently when only the first drive block 21 is driven, which can easily lead to a decrease in the overall rotation efficiency. The addition of the second drive block 22 and the positioning lock tongue 20 can make the second drive block 22 rotate when the first drive block 21 moves back in the opposite direction, and continue to drive the connecting disk 27 to rotate through the positioning lock tongue 20. Such a design can make the first drive block 21, the positioning lock tongue 20, the second drive block 22 and the positioning lock tongue 20 cooperate with each other, realize the continuous rotation of the connecting disk 27, and improve the valve rotation efficiency.

[0040] In this example, see Figure 2 , Figure 3 , Figure 4 and Figure 6 A second driving plate 23 is fixedly connected in the connection box 2, a driving groove 233 is provided at the bottom of the second driving plate 23, a driving slider 239 that can move back and forth is provided in the driving groove 233, and the driving slider 239 is used to drive the second driving block 22 to reciprocate. A second driving groove 231 is provided on one side of the driving groove 233, and a second driving rod 232 that is slidably and sealed is provided in the second driving groove 231, and the second driving rod 232 can be moved back and forth in the second driving groove 231.

[0041] In this example, see Figure 6The first driving plate 24 is provided with a linkage groove 247, and a linkage plate 246 that is slidably and sealed is provided in the linkage groove 247. A linkage rod that is fixedly connected is provided at one end of the linkage plate 246. The end of the linkage rod movably passes through the linkage groove 247 and is fixedly connected to the end of the first driving rod 241. A connecting hole 248 is provided at the outlet of the other end of the linkage groove 247. A connecting pipe 25 that is connected to the connecting hole 248 is provided on the first driving plate 24. The extending end of the connecting pipe 25 is connected to the inlet of the second driving groove 231. A first buffer groove 244 is provided in the first driving plate 24. A first buffer plate 245 that is slidably and sealed is provided in the first buffer groove 244. A first buffer spring 243 for driving the first buffer plate 245 to automatically reset is provided in the first buffer groove 244. The outlet of the first buffer groove 244 is provided with a first hole which is connected to the first driving groove 242 and can be selectively opened and closed, the other side of the driving slide groove 233 is provided with a third driving groove 234 which is connected to the third driving groove 234, a third driving rod 235 which is slidably and sealedly connected is provided in the third driving groove 234, the second driving plate 23 is provided with a second buffer groove 237 in the second driving plate 23, a second buffer plate 236 which is slidably and sealedly connected is provided in the second buffer groove 237, and a second buffer spring 238 for driving the second buffer plate 236 to automatically reset is provided in the second buffer groove 237, the outlet of the second buffer groove 237 is provided with a second hole which is connected to the third driving groove 234 and can be selectively opened and closed, and the end of the extension rod 3 is selectively connected to the first driving groove 242 and the third driving groove 234.

[0042] The design of the linkage groove 247, the linkage rod, the linkage plate 246 and the connecting pipe can make the reciprocating motion of the second driving rod 232 possible through the hydraulic transmission of the connecting pipe when the first driving rod 241 is hydraulically driven to reciprocate, and the second driving rod 232 moves in the opposite direction to the first driving rod 241; The first buffer groove 244, the second buffer groove 237, the third drive rod 235 and the third drive groove 234, and the selective connection between the end of the extension rod 3 and the third drive groove 234, when the first drive block 21 and the second drive block 22 are required to only drive the connecting plate 27 to rotate in one direction in one direction, it is only necessary to connect the extension rod 3 with the first drive groove 242. At this time, the hydraulic transmission in the extension rod 3 drives the first drive rod 241 and the second drive rod 232 to reciprocate, so that the positioning lock tongue 20 and the positioning lock tongue 20 periodically reciprocate, driving the connecting plate 27 to rotate, and at this time, it is only necessary to control the inlet of the first buffer groove 244. The third drive groove 234 remains sealed, and the opening of the second buffer groove 237 enables the third drive rod 235 to reciprocate synchronously with the second drive rod 232. When the connecting disk 27 needs to rotate in the opposite direction, it is only necessary to control the extension rod 3 to be connected with the third drive groove 234, and at the same time open the second buffer groove 237, while the first buffer groove 244 is closed, and cooperate with the positioning lock tongue 20 and the positioning lock tongue 20 to switch direction at the same time. At this time, the hydraulic transmission of the extension rod 3 can drive the connecting disk 27 to rotate in the opposite direction automatically, thereby realizing the switching of the forward and reverse rotation of the connecting disk 27.

[0043] In this example, see Figure 6 and Figure 7 , the connection box 2 is provided with an adjusting box 26, and the adjusting box 26 is provided with an adjusting slider 268 that is slidably and sealedly connected, and the adjusting slider 268 is arranged in the adjusting box 26 so as to move back and forth, and a first guide groove 267 is provided at one end of the adjusting slider 268, and a through-type second guide groove 266 is provided on one side of the adjusting slider 268, and the second guide groove 266 crosses the first guide groove 267, and a first tube 261 is provided at one end of the adjusting box 26, and a second tube 262 is provided at the other end of the adjusting box 26. The first tube 261 and the second tube 262 are staggered, and the second guide groove 266 is used for selective communication between the first tube 261 and the second tube 262, and the first tube 261 is communicated with the inlet of the first driving groove 242, and the second tube 262 is communicated with the inlet of the third driving groove 234, and the extension rod 3 is connected to one end of the adjusting box 26, and the extension rod 3 is located at the inlet of the first guide groove 267. The design of the adjustment box 26 , the adjustment slider 268 , the first guide groove 267 and the second guide groove 266 enables selective connection between the extension rod 3 and the first drive groove 242 and the second drive groove 231 through the back and forth movement of the adjustment slider 268 .

[0044] In this example, see Figure 8The first hole and the second hole are both provided with an adapter groove 29, and the adapter groove 29 crosses the corresponding first hole and the second hole, and a sliding and sealed adapter plate 293 is provided in the adapter groove 29, and the adapter plate 293 can be moved back and forth in the adapter groove 29, and a through-type adapter hole 292 for communication is provided on the adapter plate 293.

[0045] In this example, see Figure 5 , Figure 7 and Fig. 9 A threaded groove 411 is provided in the middle of the driving disk 42, and a threaded rod 421 is provided in the threaded groove 411. A connected and bendable connector 43 is provided at the end of the threaded rod 421. The extending end of the connector 43 movably passes through the adjustment box 26 and is connected to the adjustment slider 268. A return spring 265 is provided in the adjustment box 26 for driving the adjustment block 204 to automatically restore the initial position. A first hose 263 that is connected and retractable in length is provided at the other end of the adjustment box 26. The extending end of the hose is connected to the first hydraulic rod 214. Two connected transfer tubes 264 are also provided at the other end of the adjustment box 26. A second hydraulic rod 291 for driving the transfer plate 293 to reciprocate is provided in the transfer groove 29. The two transfer tubes 264 are respectively connected to the corresponding second hydraulic rods 291.

[0046] In this example, see Fig. 9 The drive shaft 41 is provided with a spring hose 45 that is rotatable and sealed, and the other end of the spring hose 45 is fixedly connected to the hydraulic plate 47. The drive shaft 41 is provided with a connecting groove 46 for connecting the extension rod 3 with the hydraulic box 4. The extension rod 3 and the drive shaft 41 are rotatably and sealed. The connecting piece 43 is arranged in the extension rod 3, and the end of the connecting piece 43 is movable and sealed to pass through the middle of the drive shaft 41.

[0047] In this example, see Figure 2 , Figure 3 A first transmission rod 211 with a rotatable connection is provided in the middle of the connecting disk 27, and the end of the first transmission rod 211 is connected to the first driving block 21. A first sliding groove 212 with a convex cross-section is provided on the first transmission rod 211, and a first sliding block with a slidable connection is provided in the first sliding groove 212. The end of the first driving rod 241 is connected to the first sliding block. A second transmission rod 221 with a rotatable connection is provided in the middle of the connecting disk 27, and the end of the second transmission rod 221 is connected to the second driving block 22. A second sliding groove 222 with a convex cross-section is provided on the second transmission rod 221, and a second sliding block with a slidable connection is provided in the second sliding groove 222. The end of the driving slider 239 is fixedly connected to the second slider.

[0048] In this embodiment, a limiting ring groove 28 rotatably connected to the connection disk 27 is provided on the inner wall of the connection box 2 , and the first driving block 21 and the second driving block 22 are both slidably connected in the limiting ring groove 28 .

[0049] When this embodiment is used: When the connecting plate 27 needs to be rotated to open the valve, it is only necessary to rotate the driving plate 42, and the driving shaft 41 rotates in coordination with the reciprocating thread 44 to make the hydraulic plate 47 reciprocate periodically, so that the hydraulic pressure drives the first driving rod 241 in the first driving groove 242 to reciprocate periodically through the first pipe 261 through the transmission of the hydraulic pressure; at the same time, the inlet of the first buffer groove 244 is closed, and the inlet of the second buffer groove 237 is opened, and under the action of the positioning lock tongue 20 and the positioning lock tongue 20, the connecting plate 27 is driven to rotate to open the valve; When the connecting disk 27 needs to be rotated to close the valve, it is only necessary to rotate the threaded rod 421 and loosen the connecting piece 43. Under the action of the reset spring 265, the first tube 261 is sealed, and the extension rod 3 is connected to the second tube 262. The movement of the adjusting slider 268 can be hydraulically transmitted through the adapter tube 264 and the first hose 263, so that the first hydraulic rod 214 and the second hydraulic rod 291 move. The first hydraulic rod 214 controls the positioning lock tongue 20 and the positioning lock tongue 20 automatically switches the direction of the arc surface. The second hydraulic rod 291 controls the movement of the adapter plate 293, so that the first buffer groove 244 is opened and the second buffer groove 237 is closed. At this time, the hydraulic transmission of the extension rod 3 can realize the reverse rotation of the connecting disk 27 through the positioning lock tongue 20 and the positioning lock tongue 20.

[0050] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0051] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0052] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present application should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. A valve drive cap and extension rod connection structure, applied to a buried valve, the buried valve comprises a valve body, a valve drive cap, an extension rod and a drive disc, the valve drive cap is connected to the valve stem in the valve body, the drive disc rotates to drive the valve body to open and close through the transmission of the extension rod, characterized in that: The connecting structure comprises a connecting plate, a plurality of evenly distributed positioning lock grooves are arranged on the outer side wall of the connecting plate, and the connecting plate is fixedly connected to the valve driving cap, the extension rod is a hydraulic hose, and a connected hydraulic box is arranged at one end of the extension rod, a hydraulic plate which is slidably and sealedly connected is arranged in the hydraulic box, a driving shaft is arranged in the middle of the driving plate, the driving shaft passes through the hydraulic plate, and a reciprocating thread connected to the driving shaft and the hydraulic plate is arranged, a fixedly connected connecting box is arranged at the other end of the extension rod, and the other end of the connecting box is fixedly connected to the valve body, a first driving block which can move back and forth in contact with the outer side wall is arranged on the outer side of the connecting plate, a positioning lock tongue which can be retracted and can switch the direction of the arc surface is arranged on the first driving block, and the positioning lock tongue can be connected with the positioning lock groove after being extended, a fixedly connected first driving plate is arranged in the connecting box, a first driving groove is arranged in the first driving plate, a first driving rod which is slidably and sealedly connected is arranged in the first driving groove, the first driving rod is used to drive the first driving block to reciprocate, and the extension rod is connected to the first driving groove.

2. The valve drive cap and extension rod connection structure according to claim 1, characterized in that: An adjusting groove is provided in the first driving block, a slidingly connected adjusting block is provided in the adjusting groove, two adjacently distributed positioning grooves are provided on one side of the adjusting block, the positioning lock tongue includes two positioning sub-lock tongues, the positioning sub-lock tongues are respectively slidably connected in the positioning grooves, an ejection spring is provided in the positioning groove for driving the positioning sub-lock tongue to automatically pop out, the arc surfaces of the positioning sub-lock tongues face oppositely, an adjusting hole connected to the adjusting groove and used for the positioning sub-lock tongue to automatically pop out is provided on one side of the first driving block, and a first hydraulic rod is provided in the adjusting groove for driving the adjusting block to reciprocate.

3. The valve drive cap and extension rod connection structure according to claim 2, characterized in that: A second driving block is also provided on the outer side of the connecting disk, which can move back and forth in close contact with the outer wall. The second driving block is provided with a retractable positioning lock tongue with a switchable arc surface direction. The second driving block moves synchronously with the first driving block, and the movement directions of the second driving block and the first driving block are opposite. After the positioning lock tongue is extended, it can be engaged with the positioning lock groove.

4. The valve drive cap and extension rod connection structure according to claim 3, characterized in that: A fixedly connected second driving plate is provided in the connection box, a driving slide groove is provided at the bottom of the second driving plate, a driving slider that can move back and forth is provided in the driving slide groove, and the driving slider is used to drive the second driving block to reciprocate, a second driving groove is provided on one side of the driving slide groove, a second driving rod that is slidably and sealed connected is provided in the second driving groove, and the second driving rod is arranged in the second driving groove so as to move back and forth.

5. The valve drive cap and extension rod connection structure according to claim 4, characterized in that: A linkage groove is provided in the first driving plate, a linkage plate is provided in the linkage groove which is slidably and sealedly connected, a linkage rod is provided at one end of the linkage plate, the end of the linkage rod movably passes through the linkage groove and is fixedly connected to the end of the first driving rod, a connecting hole is provided at the outlet of the other end of the linkage groove, a connecting pipe connected to the connecting hole is provided on the first driving plate, an extending end of the connecting pipe is connected to the inlet of the second driving groove, a first buffer groove is provided in the first driving plate, a first buffer plate is provided in the first buffer groove which is slidably and sealedly connected, and a first buffer spring for driving the first buffer plate to automatically reset is provided in the first buffer groove, The first buffer groove outlet is provided with a first hole connected with the first driving groove and can be selectively opened and closed, the other side of the driving slide groove is provided with a connected third driving groove, the third driving groove is provided with a third driving rod that is slidably and sealedly connected, the second driving plate is provided with a second buffer groove, the second driving plate is provided with a second buffer groove, the second buffer groove is provided with a second buffer plate that is slidably and sealedly connected, and the second buffer groove is provided with a second buffer spring for driving the second buffer plate to automatically reset, the second buffer groove outlet is provided with a second hole connected with the third driving groove and can be selectively opened and closed, and the end of the extension rod is selectively connected with the first driving groove and the third driving groove.

6. The valve drive cap and extension rod connection structure according to claim 5, characterized in that: An adjusting box is provided in the connecting box, and an adjusting slider which is slidably and sealed is provided in the adjusting box. The adjusting slider is arranged in the adjusting box so as to move back and forth. A first guide groove is provided at one end of the adjusting slider, and a through-type second guide groove is provided at one side of the adjusting slider. The second guide groove crosses the first guide groove. A first connected pipe is provided at one end of the adjusting box, and a second connected pipe is provided at the other end of the adjusting box. The first pipe and the second pipe are alternately distributed. The second guide groove is used for selective connection between the first pipe and the second pipe. The first pipe is connected to the inlet of the first driving groove, and the second pipe is connected to the inlet of the third driving groove. The extension rod is connected to one end of the adjusting box, and the extension rod is located at the inlet of the first guide groove.

7. The valve drive cap and extension rod connection structure according to claim 6, characterized in that: The first hole and the second hole are both provided with an adapter groove, and the adapter grooves both cross the corresponding first hole and the second hole, and a sliding and sealed adapter plate is provided in the adapter groove, and the adapter plate can be moved back and forth in the adapter groove, and a through-type adapter hole for connection is provided on the adapter plate.

8. The valve drive cap and extension rod connection structure according to claim 7, characterized in that: A threaded groove is provided in the middle of the driving disk, a threaded rod is provided in the threaded groove, a connected and bendable connecting piece is provided at the end of the threaded rod, an extended end of the connecting piece movably passes through the adjustment box and is connected to the adjustment slider, a return spring is provided in the adjustment box for driving the adjustment block to automatically restore the initial position, a first hose which is connected and retractable in length is provided at the other end of the adjustment box, an extended end of the hose is connected to the first hydraulic rod, two connected transfer tubes are also provided at the other end of the adjustment box, a second hydraulic rod for driving the transfer plate to reciprocate is provided in the transfer groove, and the two transfer tubes are respectively connected to the corresponding second hydraulic rods.

9. The valve drive cap and extension rod connection structure according to claim 8, characterized in that: The drive shaft is provided with a spring hose that is rotatable and sealed, and the other end of the spring hose is fixedly connected to the hydraulic plate. The drive shaft is provided with a connecting groove for connecting the extension rod with the hydraulic box. The extension rod and the drive shaft are rotatable and sealed, and the connecting piece is arranged in the extension rod, and the end of the connecting piece is movably and sealedly connected to pass through the middle of the drive shaft.

10. A method for using a valve drive cap and an extension rod connection structure, using the valve drive cap and an extension rod connection structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1 connects and fixes the connection box to the valve body, and at the same time connects and fixes the connection plate to the valve drive cap; S2 When the valve needs to be opened, the arc surface of the positioning lock tongue is controlled to face the direction of valve closing, and then the hydraulic plate is controlled to periodically reciprocate by rotating the driving disk. The first driving block is made to periodically reciprocate along the connecting disk by means of hydraulic transmission of the extension rod. The positioning lock tongue is made to continuously drive the connecting disk to rotate in the direction of valve opening by utilizing the retractable and arc surface characteristics of one side, thereby realizing the automatic opening of the valve; S3 When the valve needs to be closed, the arc surface of the positioning lock tongue is controlled to face the direction of full valve opening, and then the hydraulic plate is controlled to periodically reciprocate by rotating the drive disk. The first drive block is made to periodically reciprocate along the connecting disk by means of hydraulic transmission of the extension rod. The positioning lock tongue is retractable and has the characteristics of the arc surface on one side, so that the positioning lock tongue can continuously drive the connecting disk to rotate in the direction of valve closing, thereby realizing automatic opening of the valve.

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