Telescopic extension rod for valve and method

Abstract

The telescopic extension rod is applied to the valve and comprises a telescopic pipe, a first handle disc is arranged on the inner wall of one end of the telescopic pipe, and a first driving ring plate and a second driving ring plate which are selectively connected are arranged on the outer side of the first handle disc; a plurality of positioning grooves are formed in the outer side wall of the first driving ring plate and the outer side wall of the second driving ring plate, a first arc groove is formed in the inner wall of the adjusting ring groove, a first driving block is arranged on the outer side of the first driving ring plate and provided with a first positioning spring bolt, and a second driving block and a second positioning spring bolt are arranged on the outer side of the second driving ring plate. The directions of the inclined cambered surfaces of the first positioning spring bolt and the second positioning spring bolt are opposite; and two driving grooves are formed in each butt joint pipe, driving rods are arranged in the driving grooves, a flow guide pipe is arranged in the telescopic pipe, a driving box is arranged at the other end of the telescopic pipe, and a driving plate is arranged in the driving box. The original direct extension rod driving is replaced, and the problem that the original extension rod cannot stably control the opening and closing rotation of the valve after having a certain length is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of valves, and in particular relates to a telescopic extension rod for a valve and a method thereof. Background Art

[0002] Because buried valves are a certain distance from the ground, in order to facilitate the operation of valve opening and closing, extension rods are usually required to drive the valves by driving the driving cap on the top of the extension rods. However, in the actual construction process, the distance between the buried valves and the ground is different, especially in hilly areas, so a retractable extension rod is required to fix the height of the extension rod according to the actual distance from the ground. The old-fashioned retractable extension rod can be extended, but it cannot be positioned when pulled to the appropriate position, which adds a certain degree of difficulty to the construction. In addition, due to material limitations, the existing old-fashioned extension rods cannot stably realize transmission after reaching a certain length, and cannot stably realize the long-distance opening and closing of the valve.

[0003] Therefore, the existing structure and defects are studied and improved, and a telescopic extension rod and method for a valve 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 telescopic extension rod for a valve and a method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A telescopic extension rod for a valve, applied to a valve, comprises a telescopic tube, a butt joint tube fixedly connected to the valve is provided on the inner wall of one end of the telescopic tube, an adjusting ring groove is provided on the inner wall of the butt joint tube, a first handle plate rotatably connected is provided in the adjusting ring groove, a clamping groove connected to the valve core of the valve is provided in the middle of the first handle plate, a first driving ring plate and a second driving ring plate selectively connected are provided on the outer side of the first handle plate, a plurality of evenly distributed positioning grooves are provided on the outer side walls of the first driving ring plate and the second driving ring plate, two first arc grooves are provided on the inner wall of the adjusting ring groove, a first driving block reciprocating along the corresponding first arc groove is provided on the outer side of the first driving ring plate, a first positioning lock tongue which is retractable and used for engaging with the corresponding positioning groove is provided on the inner side wall of the first driving block, a second driving block reciprocating along the corresponding first arc groove is provided on the outer side of the second driving ring plate, a second positioning lock tongue which is retractable and used for engaging with the corresponding positioning groove is provided on the inner side wall of the second driving block, and the inclined arc surfaces of the first positioning lock tongue and the second positioning lock tongue are in opposite directions;

[0007] Two driving grooves are provided in the butt joint tubes, and driving rods are provided in the driving grooves for sliding and sealing connection. The ends of the driving rods are respectively connected to the corresponding first driving blocks and second driving blocks. A guide tube selectively connected to the two driving grooves is provided in the telescopic tube, and a fixedly connected driving box is provided at the other end of the telescopic tube. A driving plate that can move up and down is provided in the driving box, and the bottom of the driving box is connected to the guide groove.

[0008] Preferably, an adapter groove is provided in the docking pipe, the end of the guide pipe is connected with the adapter groove, a connecting block that is slidably and sealed is provided in the adapter groove, one end of the connecting block is provided with a connecting groove, and a through-type connecting hole is provided in the middle of the connecting block, the connecting hole crosses the connecting groove, and the connecting hole is connected with the connecting groove, the connecting block is arranged in the adapter groove so as to be movable back and forth, a first groove connected with one of the driving grooves is provided on one side of the adapter groove, and a second groove connected with the other driving groove is provided on the other side of the adapter groove, the first groove and the second groove are staggered, the connecting hole, the first groove and the second groove are on the same straight line, a reset spring for driving the connecting block to automatically restore its initial position is provided in the adapter groove, a bendable connecting piece is provided in the drive box, and the connecting piece is connected with the connecting block.

[0009] Preferably, a rotatably connected drive shaft is provided in the middle of the drive box, the drive shaft passes through the drive plate, and a reciprocating thread is provided on the drive shaft. The drive shaft and the drive plate are connected by a reciprocating thread, and a second handle plate is fixedly connected to the upper end of the drive shaft.

[0010] Preferably, a threaded groove is provided in the middle of the second handle plate, a threaded rod connected by a thread is provided in the threaded groove, and the bottom of the threaded rod is connected to the connecting piece.

[0011] Preferably, the first driving block and the second driving block are both provided with a first positioning groove, the first positioning lock tongue and the second positioning lock are both slidably connected in the corresponding first positioning groove, and the first positioning groove is provided with a first spring for driving the first positioning lock tongue and the second positioning lock tongue to automatically pop out.

[0012] Preferably, two fixedly connected fixing plates are provided in the butt joint tube, a first slide groove is provided on one side of the fixing plate, a slidably connected first slider is provided in the first slide groove, the driving grooves are respectively arranged in the corresponding fixing plates, and the driving grooves are respectively communicated with the corresponding first slide grooves, the end of the driving rod is fixedly connected to the first slider, the first slider is provided with connected synchronizing parts, the synchronizing parts are respectively connected to the corresponding first driving block and the second driving block, a fixedly connected adapter plate is provided in the butt joint tube, and the adapter groove is arranged in the adapter plate.

[0013] Preferably, two second arc grooves are further provided on the inner wall of the adjustment ring groove, a first driving block is provided on the outer side of the first driving ring plate, which reciprocates back and forth along the corresponding second arc groove, a retractable first positioning sub-locking tongue is provided on the inner side wall of the first driving block and is used to engage with the corresponding positioning groove, a second driving block is provided on the outer side of the second driving ring plate, which reciprocates back and forth along the corresponding second arc groove, a retractable second positioning sub-locking tongue is provided on the inner side wall of the second driving block and is used to engage with the corresponding positioning groove, the inclined arc surfaces of the first positioning sub-locking tongue and the second positioning sub-locking tongue are in opposite directions, the first driving block and the first driving block move alternately in sequence, the first driving block is located in front of the movement direction of the first driving block, the second driving block and the second driving block move alternately in sequence, and the second driving block is located in front of the movement direction of the second driving block.

[0014] Preferably, two fixed sub-plates are provided in the butt joint pipe, and a second slide groove is provided on the fixed sub-plate, a second slide block slidably connected therein is provided in the second slide groove, a synchronous part connected to the second slide block is provided, and a driving sub-plate is provided on one side wall of the second slide groove, a driving sub-plate is provided in the driving sub-plate, a driving sub-plate is slidably and sealedly connected to the driving sub-plate, and the driving sub-plate is fixedly connected to the second slide block. A hydraulic groove is provided in each of the fixed plates, and a hydraulic plate slidably and sealedly connected therein is provided in the hydraulic groove, one end of the hydraulic groove is communicated with the upper inner wall of the first slide groove, a fixedly connected linkage rod is provided on the hydraulic plate, and an end of the linkage rod is fixedly connected to the first slide block, a discharging groove is provided at the discharging end of the hydraulic groove, and a connected linkage pipe is provided at the end of the discharging groove, and the extending ends of the linkage pipe are respectively connected to the feeding ends of the corresponding driving sub-plates.

[0015] Preferably, the first drive block and the second drive block are both provided with a second positioning slot, the first positioning sub-lock tongue and the second positioning sub-lock tongue are respectively arranged in the corresponding second positioning slot, and the second positioning slot is provided with a second spring for driving the first sub-lock tongue to automatically pop out.

[0016] A method for using a telescopic extension rod for a valve, using the telescopic extension rod for a valve, comprising the following steps:

[0017] S1 first fixes the valve at a set position, then fixes the butt-joint pipe to the valve, places the valve core in the butt-joint pipe, and engages the first handle plate with the valve core;

[0018] S2 then connects the telescopic tube to the butt tube, and then fixes the drive box to another set position, and at the same time, connects the telescopic tube to the drive box and fixes it;

[0019] S3 When the valve needs to be opened, the first handle plate is connected and fixed to the first drive ring plate, and the second drive ring plate does not rotate synchronously at this time. The control guide tube is connected to the drive groove corresponding to the first drive ring plate, and the drive plate in the drive box is controlled to reciprocate periodically. Through hydraulic transmission, the first drive block is controlled to move back and forth along the drive groove direction, thereby driving the first positioning lock tongue back and forth. When the first drive block moves toward one end for a set distance, the first handle plate can be driven to rotate a set angle through the first positioning lock tongue. When the first drive block moves back, due to the arc surface guide of the first lock tongue, it can be automatically squeezed and contracted, so that the first lock tongue can automatically restore the initial position with the first drive block. Through the continuous reciprocating motion of the first drive block, the valve can be slowly opened automatically;

[0020] S4 When the valve needs to be closed, it is only necessary to release the connection and fixation between the first handle plate and the first drive ring plate, and connect and fix the first handle plate to the second drive ring plate, and control the flow guide tube to be connected to the drive groove corresponding to the second drive ring plate. By the same principle, through the periodic reciprocating motion of the second drive block, the second positioning lock tongue can continuously drive the first handle plate to rotate, and control the valve to close slowly and automatically.

[0021] Compared with the prior art, the present invention has the following technical effects:

[0022] The design of the drive box, drive plate, guide tube, first drive ring plate, second drive ring plate, first positioning lock tongue and second positioning lock tongue can realize the reciprocating motion of the drive rod through the up and down movement of the drive plate and the hydraulic transmission, and the forward and reverse rotation of the first handle plate is realized by cooperating with the first positioning lock tongue, the second positioning lock tongue, the positioning groove, and the selective connection between the first drive ring plate, the second drive ring plate and the first handle plate. Such a design can replace the original direct extension rod drive through hydraulic drive, thereby solving the problem that the original extension rod cannot control the opening and closing rotation of the valve more stably after a certain length due to the strength limitation of the material, and also solves the problem that the original extension rod cannot be effectively fixed after being adjusted to an appropriate length.

[0023] 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.

[0024] 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.

[0025] 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

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure provided by the present invention.

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the drive box provided by the present invention.

[0029] Figure 3 This is a schematic diagram of the three-dimensional connection structure between the first handle plate and the valve provided by the present invention.

[0030] Figure 4 This is a schematic diagram of the three-dimensional connection structure of the first handle plate, the first drive ring plate and the second drive ring plate provided by the present invention.

[0031] Figure 5 This is a schematic diagram of the cross-sectional connection structure of the first drive ring plate provided by the present invention.

[0032] Figure 6 This is a schematic diagram of the cross-sectional connection structure of the fixed plate and the fixed sub-plate provided by the present invention.

[0033] Figure 7 This is a schematic diagram of the cross-sectional connection structure of the limiting teeth and positioning teeth provided by the present invention.

[0034] Explanation of the reference numerals in the figure: 1. valve; 2. telescopic tube; 20. synchronous member; 21. drive box; 211. drive plate; 212. guide tube; 213. sleeve; 22. butt tube; 221. first drive ring plate; 222. second drive ring plate; 223. positioning groove; 224. first arc groove; 225. second arc groove; 23. first handle plate; 231. clamping groove; 24. adjusting groove; 241. positioning tooth; 242. positioning ring groove; 243. hydraulic rod; 244. drive spring; 245. adjusting plate; 246. guide groove; 247. limiting groove; 248. limiting tooth; 25. first drive block; 251. first positioning lock tongue; 252. first spring; 26. first drive sub-block; 261. first positioning sub-lock tongue; 262. second spring; 27. fixed plate; 271. driving groove; 272. driving rod; 273. first slider; 274. hydraulic groove; 275. first slide groove; 276. hydraulic plate; 277. linkage rod; 278. discharge groove; 28. fixed sub-plate; 281. second slide groove; 282. driving sub-rod; 283. second slider; 284. driving sub-groove; 285. linkage pipe; 29. ​​adapter plate; 291. connecting block; 292. adapter groove; 293. reset spring; 294. connecting hole; 295. connecting pipe; 296. connecting groove; 3. second handle plate; 31. driving shaft; 32. threaded groove; 33. connecting piece; 34. liquid inlet groove. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Example 1, please refer to Figure 1 , Figure 2 and Figure 3 A telescopic extension rod for a valve 1 is applied to the valve 1, comprising a telescopic tube 2, wherein a butt joint tube 22 fixedly connected to the valve 1 is provided on the inner wall of one end of the telescopic tube 2, an adjusting ring groove is provided on the inner wall of the butt joint tube 22, a first handle plate 23 rotatably connected is provided in the adjusting ring groove, a clamping groove 231 engaged with the valve core of the valve 1 is provided in the middle of the first handle plate 23, a first drive ring plate 221 and a second drive ring plate 222 selectively connected are provided on the outer side of the first handle plate 23, a plurality of evenly distributed positioning grooves 223 are provided on the outer side walls of the first drive ring plate 221 and the second drive ring plate 222, two first arc grooves 224 are provided on the inner wall of the adjusting ring groove, a first drive block 25 reciprocating back and forth along the corresponding first arc groove 224 is provided on the outer side of the first drive ring plate 221, and a telescopic and corresponding first drive block 25 is provided on the inner wall of the first drive block 25 A first positioning lock tongue 251 is engaged with the positioning groove 223, and a second driving block that reciprocates back and forth along the corresponding first arc groove 224 is provided on the outer side of the second driving ring plate 222. A retractable second positioning lock tongue that is used to engage with the corresponding positioning groove 223 is provided on the inner side wall of the second driving block. The inclined arc surfaces of the first positioning lock tongue 251 and the second positioning lock tongue are in opposite directions; two driving grooves 271 are provided in the butt-jointing tube 22, and a driving rod 272 that is slidably and sealed is provided in the driving groove 271. The ends of the driving rod 272 are respectively connected to the corresponding first driving block 25 and the second driving block, and a guide tube 212 that is selectively connected to the two driving grooves 271 is provided in the telescopic tube 2, and a fixedly connected driving box 21 is provided at the other end of the telescopic tube 2, and a driving plate 211 that can move up and down is provided in the driving box 21, and the bottom of the driving box 21 is connected to the guide groove.

[0039] The design of the drive box 21, the drive plate 211, the guide tube 212, the first drive ring plate 221, the second drive ring plate 222, the first positioning lock tongue 251, and the second positioning lock tongue can realize the reciprocating motion of the drive rod 272 through the up and down movement of the drive plate 211 and the hydraulic transmission, and cooperate with the first positioning lock tongue 251, the second positioning lock tongue, the positioning groove 223, and the selective connection between the first drive ring plate 221, the second drive ring plate 222 and the first handle plate 23 to realize the forward and reverse rotation of the first handle plate 23. Such a design can replace the original direct extension rod drive through hydraulic drive, thereby solving the problem that the original extension rod cannot more stably control the opening and closing rotation of the valve 1 after a certain length due to the strength limitation of the material, and also solves the problem that the original extension rod cannot be effectively fixed after being adjusted to an appropriate length.

[0040] In this example, see Figure 4 and Figure 6 The butt joint pipe 22 is provided with a transfer groove 292, the end of the guide pipe 212 is connected with the transfer groove 292, the transfer groove 292 is provided with a connecting block 291 which is slidably and sealedly connected, one end of the connecting block 291 is provided with a connecting groove 296, and a through-type connecting hole 294 is provided in the middle of the connecting block 291, the connecting hole 294 crosses the connecting groove 296, and the connecting hole 294 is connected with the connecting groove 296, the connecting block 291 can be moved back and forth in the transfer groove 292, the connecting block 291 is provided with a connecting groove 296, and the connecting hole 294 is connected with the connecting groove 296. A first groove connected to one of the driving grooves 271 is provided on one side of the groove 292, and a second groove connected to the other driving groove 271 is provided on the other side of the adapter groove 292, the first groove and the second groove are staggered, the communicating hole 294, the first groove and the second groove are on the same straight line, a return spring 293 for driving the connecting block 291 to automatically restore the initial position is provided in the adapter groove 292, a bendable connecting piece 33 is provided in the driving box 21, and the connecting piece 33 is connected to the connecting block 291. The second groove is connected to the other driving groove 271 through a connecting pipe 295.

[0041] The selective connection of the two driving grooves 271 is achieved through the up and down movement of the connecting block 291 . The design of the connecting piece 33 and the return spring 293 can directly and remotely achieve the up and down control of the connecting block 291 through the connecting piece 33 .

[0042] In this example, see Figure 1 and Figure 2The middle part of the driving box 21 is provided with a rotatably connected driving shaft 31, the driving shaft 31 passes through the driving plate 211, and a reciprocating thread is provided on the driving shaft 31. The driving shaft 31 and the driving plate 211 are connected through the reciprocating thread, and a second handle plate 3 is fixedly connected at the upper end of the driving shaft 31. Among them, a fixedly connected and retractable sleeve 213 is provided on the driving plate 211, the driving shaft 31 passes through the sleeve 213, the end of the sleeve 213 is rotatably and sealedly connected to the driving shaft 31, and the sleeve 213 is used to wrap the reciprocating thread.

[0043] The addition of the second handle plate 3 and the reciprocating thread can drive the drive shaft 31 to rotate through the rotation of the second handle plate 3, and through the characteristics of the reciprocating thread, the periodic reciprocating motion of the drive plate 211 is achieved.

[0044] In this example, see Figure 1 and Figure 2 A thread groove 32 is provided in the middle of the second handle plate 3, and a threaded rod is provided in the thread groove 32, and the bottom of the threaded rod is connected to the connecting piece 33. The design of the thread groove 32 and the threaded rod can realize the up and down movement of the threaded rod by rotating the threaded rod, thereby realizing the pulling of the connecting piece 33 on the connecting block 291 to control the up and down movement of the connecting block 291.

[0045] In this example, see Figure 5 The first driving block 25 and the second driving block are both provided with a first positioning groove, the first positioning lock tongue 251 and the second positioning lock are both slidably connected in the corresponding first positioning groove, and the first positioning groove is provided with a first spring 252 for driving the first positioning lock tongue 251 and the second positioning lock tongue to automatically pop out.

[0046] In this example, see Figure 4 , Figure 5 and Figure 6 The butt joint tube 22 is provided with two fixedly connected fixing plates 27, one side of the fixing plate 27 is provided with a first slide groove 275, the first slide groove 275 is provided with a first sliding block 273 for sliding connection, the driving grooves 271 are respectively arranged in the corresponding fixing plates 27, and the driving grooves 271 are respectively communicated with the corresponding first slide grooves 275, the end of the driving rod 272 is fixedly connected with the first sliding block 273, the first sliding block 273 is provided with a connected synchronous member 20, the synchronous member 20 is respectively connected with the corresponding first driving block 25 and the second driving block, the butt joint tube 22 is provided with a fixedly connected adapter plate 29, and the adapter groove 292 is arranged in the adapter plate 29.

[0047] In this example, see Figure 4 , Figure 5 and Figure 6 , two second arc grooves 225 are also provided on the inner wall of the adjusting ring groove, a first driving block 26 that reciprocates back and forth along the corresponding second arc groove 225 is provided on the outer side of the first driving ring plate 221, a first positioning sub-lock tongue 261 that is retractable and used to engage with the corresponding positioning groove 223 is provided on the inner side wall of the first driving block 25, a second driving block that reciprocates back and forth along the corresponding second arc groove 225 is provided on the outer side of the second driving ring plate 222, a second positioning sub-lock tongue that is retractable and used to engage with the corresponding positioning groove 223 is provided on the inner side wall of the second driving block, the inclined arc surfaces of the first positioning sub-lock tongue 261 and the second positioning sub-lock tongue are in opposite directions, the first driving block 25 and the first driving block 26 move alternately in sequence, the first driving block 26 is located in front of the movement direction of the first driving block 25, the second driving block and the second driving block move alternately in sequence, and the second driving block is located in front of the movement direction of the second driving block.

[0048] The design of the second positioning sub-lock tongue can enable the first positioning lock tongue 251 to drive the first handle plate 23 to continue to move through the continued movement of the second positioning sub-lock tongue during the process of moving back. Such a design can fully improve the rotation efficiency of the first handle plate 23, and can make full use of the time of the first positioning lock tongue 251 moving back, so as to always keep the first handle plate 23 able to rotate continuously.

[0049] In this example, see Figure 4 , Figure 5 and Figure 6 The butt joint pipe 22 is provided with two fixed sub-plates 28, the fixed sub-plate 28 is provided with a second slide groove 281, the second slide groove 281 is provided with a second slider 283 in sliding connection, the second slider 283 is provided with a synchronous member 20 connected to the corresponding second driving sub-block, a driving sub-slot 284 is provided on one side wall of the second slide groove 281, the driving sub-slot 284 is provided with a driving sub-rod 282 in sliding and sealing connection, the driving sub-rod 282 is fixedly connected to the second slider 283, and the fixed plate 27 is provided with a second slider 283 in sliding connection. A hydraulic groove 274 is provided, in which a hydraulic plate 276 is provided which is slidably and sealed. One end of the hydraulic groove 274 is communicated with the upper inner wall of the first slide groove 275. A fixedly connected linkage rod 277 is provided on the hydraulic plate 276. The end of the linkage rod 277 is fixedly connected to the first slider 273. A discharge groove 278 is provided at the discharge end of the hydraulic groove 274. A connected linkage pipe 285 is provided at the end of the discharge groove 278. The extending ends of the linkage pipe 285 are respectively communicated with the feeding ends of the corresponding driving sub-grooves 284.

[0050] In this embodiment, the first driving block 26 and the second driving block are both provided with a second positioning slot, the first positioning sub-lock tongue 261 and the second positioning sub-lock tongue are respectively arranged in the corresponding second positioning slot, and the second positioning slot is provided with a second spring 262 for driving the first sub-lock tongue to automatically pop out.

[0051] In this embodiment, the first drive ring plate 221 and the second drive ring plate 222 are provided with a positioning ring groove 242 on their inner walls, and a plurality of evenly distributed and fixedly connected positioning teeth 241 are provided in the positioning ring groove 242. Two limiting grooves 247 corresponding to the corresponding positioning ring grooves 242 are provided on the outer wall of the first handle plate 23, and limiting teeth 248 slidably connected and used to insert the positioning teeth 241 for engagement and fixing are provided in the limiting grooves 247. The first handle plate 23 is also provided with an adjustment groove 24. The adjusting groove 24 is provided with an adjusting plate 245 which is slidably and sealedly connected, and a driving spring 244 is provided in the adjusting groove 24 for driving the adjusting plate 245 to restore the initial position, and a fixedly connected hydraulic rod 243 is provided in the limiting groove 247, and the ends of the hydraulic rod 243 are respectively fixedly connected with the corresponding limiting teeth 248, and the side walls of the adjusting groove 24 at both ends of the adjusting plate 245 are provided with connected drainage grooves 246, and the drainage grooves 246 are respectively connected with the liquid inlet ends of the corresponding hydraulic rods 243. The reciprocating motion of the adjusting plate 245 can be realized through the connecting member 33, so that the telescopic control of the two hydraulic rods 243 is realized through the transmission of hydraulic pressure, so that the two limiting teeth 248 are selectively telescopic, and the first handle plate 23 is selectively connected with the first driving ring plate 221 and the second driving ring plate 222. The connecting member 33 can pass through the middle of the first handle plate 23 in an L shape and be connected to the adjustment plate 245. Such a design can prevent the connecting member 33 from getting entangled due to the rotation of the first handle plate 23.

[0052] In this embodiment, the telescopic tube 2 can be a hose. This design can change the original mode of the extension rod and the valve 1 in the same vertical direction, can change the position of the second handle plate 3, and can set the second handle plate 3 at any position to achieve the opening and closing control of the valve 1, which is more practical.

[0053] In this embodiment, the guide tube 212 is rotatably and sealedly connected to the drive shaft 31 . The drive shaft 31 is provided with a liquid inlet groove 34 for connecting the guide tube 212 with the interior of the drive box 21 . The connector 33 is disposed in the middle of the guide groove.

[0054] When using this application:

[0055] When the valve 1 needs to be opened, the threaded rod is first rotated to pull the connecting member 33, and the adjusting plate 245 and the connecting block 291 are driven to move synchronously through the connecting member 33. The movement of the adjusting plate 245 causes the limiting teeth 248 to engage with the positioning teeth 241 in the first driving ring plate 221 through hydraulic transmission, and the limiting teeth 248 in the second driving ring plate 222 are separated from the corresponding positioning teeth 241. At this time, the first driving ring plate 221 moves synchronously with the first handle plate 23, while the second driving ring plate 222 does not rotate. The movement of the connecting block 291 causes the guide tube 212 to communicate with the driving groove 271 at the first driving block 25, thereby sealing the second groove.

[0056] Then the user only needs to rotate the second handle plate 3 to drive the drive shaft 31 to rotate. Through the characteristics of the reciprocating thread, the drive plate 211 is controlled to reciprocate periodically, and the drive rod 272 can be driven to reciprocate in the drive groove 271 through the hydraulic transmission of the guide tube 212, thereby driving the first drive block 25 to reciprocate in the first arc groove 224 through the synchronous member 20. The first positioning lock tongue 251 can first drive the first handle plate 23 to rotate a set angle. When the first slider 273 drives the first positioning lock tongue 251 to move through the first drive block 25, the hydraulic plate 276 can be driven to move through the linkage rod 277, thereby through the hydraulic adsorption, the second slider 283 automatically moves toward the first slider 273, and when the first slider 273 moves to the end, the second slider 283 also moves synchronously to the end close to the first slider 273. When the first slider 273 is able to push the first handle plate 23 to rotate through the first positioning lock tongue 251, the first positioning sub-lock tongue 261 can, under the action of the second slider 283, drive the first positioning sub-lock tongue 261 to automatically approach the first positioning lock tongue 251, so that when the first slider 273 starts to move toward the other end, due to the characteristics of the first positioning lock tongue 251, the first positioning lock tongue 251 can be driven to automatically move back, and the first positioning sub-lock tongue 261 can automatically drive the second positioning sub-lock tongue to move away from the first positioning lock tongue 251 under the push of the hydraulic pressure, so that the first handle plate 23 continues to maintain a rotating state; such a design can make the second positioning lock tongue continue to drive the first handle plate 23 to rotate during the process of the first positioning lock tongue 251 moving back, which fully improves the rotation efficiency of the first handle plate 23;

[0057] When the valve 1 needs to be closed, it is only necessary to control the threaded rod to automatically return to the initial position, and the connecting block 291 returns to the initial position under the action of the return spring 293, so that the second driving ring plate 222 and the first handle plate 23 move synchronously, while the first driving ring plate 221 does not rotate, and at the same time, the guide tube 212 is connected with the driving groove 271 at the second driving block, thereby sealing the first groove;

[0058] Then the user only needs to continue to rotate the second handle plate 3. Since the movement directions of the first drive ring plate 221 and the second drive ring plate 222 are opposite, the arc surfaces of the first positioning lock tongue 251 and the second positioning lock tongue are opposite. Therefore, the first handle plate 23 can be automatically driven to continue to rotate in the opposite direction through the above principle, thereby realizing the automatic opening of the valve 1.

[0059] A method for using a telescopic extension rod for a valve 1, using the telescopic extension rod for the valve 1, comprising the following steps:

[0060] S1: First, fix the valve 1 at a set position, then fix the butt-joint pipe 22 to the valve 1, so that the valve core is located in the butt-joint pipe 22, and the first handle plate 23 is engaged with the valve core;

[0061] S2 then connects the telescopic tube 2 to the butt-joint tube 22, and then fixes the drive box 21 to another set position, and at the same time, connects and fixes the telescopic tube 2 to the drive box 21;

[0062] S3 When the valve 1 needs to be opened, the first handle plate 23 is connected and fixed to the first drive ring plate 221. At this time, the second drive ring plate 222 will not rotate synchronously, and the control guide tube 212 is connected to the drive groove 271 corresponding to the first drive ring plate 221, and the drive plate 211 in the drive box 21 is controlled to periodically reciprocate. Through hydraulic transmission, the first drive block 25 is controlled to move back and forth along the direction of the drive groove 271, thereby driving the first positioning lock tongue 251 back and forth. When the first drive block 25 moves toward one end for a set distance, the first handle plate 23 can be driven to rotate a set angle through the first positioning lock tongue 251. When the first drive block 25 moves back, due to the arc surface guide of the first lock tongue, it can be automatically squeezed and contracted, so that the first lock tongue can automatically restore the initial position with the first drive block 25. Through the continuous reciprocating motion of the first drive block 25, the valve 1 can be slowly opened automatically.

[0063] S4 When the valve 1 needs to be closed, it is only necessary to release the connection and fixation between the first handle plate 23 and the first drive ring plate 221, and at the same time connect and fix the first handle plate 23 and the second drive ring plate 222, and control the flow guide tube 212 to be connected with the drive groove 271 corresponding to the second drive ring plate 222. By the same principle, through the periodic reciprocating motion of the second drive block, the second positioning lock tongue can continuously drive the first handle plate 23 to rotate, and control the valve 1 to close slowly and automatically.

[0064] 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.

[0065] 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.

[0066] 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 telescopic extension rod for a valve, applied to a valve, characterized in that: The invention comprises a telescopic tube, wherein the inner wall of one end of the telescopic tube is provided with a butt tube fixedly connected to the valve, an adjusting ring groove is provided on the inner wall of the butt tube, a first handle plate rotatably connected is provided in the adjusting ring groove, a clamping groove connected to the valve core of the valve is provided in the middle of the first handle plate, a first driving ring plate and a second driving ring plate selectively connected are provided on the outer side of the first handle plate, a plurality of evenly distributed positioning grooves are provided on the outer side walls of the first driving ring plate and the second driving ring plate, two first arc grooves are provided on the inner wall of the adjusting ring groove, a first driving block reciprocating along the corresponding first arc groove is provided on the outer side of the first driving ring plate, a first positioning lock tongue which is retractable and used for engaging with the corresponding positioning groove is provided on the inner side wall of the first driving block, a second driving block reciprocating along the corresponding first arc groove is provided on the outer side of the second driving ring plate, a second positioning lock tongue which is retractable and used for engaging with the corresponding positioning groove is provided on the inner side wall of the second driving block, and the inclined arc surfaces of the first positioning lock tongue and the second positioning lock tongue are in opposite directions; Two driving grooves are provided in the butt joint tubes, and driving rods are provided in the driving grooves for sliding and sealing connection. The ends of the driving rods are respectively connected to the corresponding first driving blocks and second driving blocks. A guide tube selectively connected to the two driving grooves is provided in the telescopic tube, and a fixedly connected driving box is provided at the other end of the telescopic tube. A driving plate that can move up and down is provided in the driving box, and the bottom of the driving box is connected to the guide groove.

2. The telescopic extension rod for a valve according to claim 1, characterized in that: A transfer groove is provided in the docking pipe, and the end of the guide pipe is communicated with the transfer groove. A communicating block that is slidably and sealed is provided in the transfer groove. A communicating groove is provided at one end of the communicating block, and a through-type communicating hole is provided in the middle of the communicating block. The communicating hole crosses the communicating groove, and the communicating hole is communicated with the communicating groove. The communicating block is arranged in the transfer groove so as to be movable back and forth. A first groove that is communicated with one of the driving grooves is provided on one side of the transfer groove, and a second groove that is communicated with the other driving groove is provided on the other side of the transfer groove. The first groove and the second groove are staggered, and the communicating hole, the first groove and the second groove are on the same straight line. A reset spring for driving the communicating block to automatically restore its initial position is provided in the transfer groove. A bendable connecting piece is provided in the driving box, and the connecting piece is connected with the communicating block.

3. The telescopic extension rod for a valve according to claim 2, characterized in that: A rotatably connected driving shaft is provided in the middle of the driving box. The driving shaft passes through the driving plate and is provided with a reciprocating thread. The driving shaft and the driving plate are connected via the reciprocating thread. A second handle plate is fixedly connected to the upper end of the driving shaft.

4. The telescopic extension rod for a valve according to claim 3, characterized in that: A threaded groove is provided in the middle of the second handle plate, a threaded rod connected by a thread is provided in the threaded groove, and the bottom of the threaded rod is connected to a connecting piece.

5. The telescopic extension rod for a valve according to claim 1, characterized in that: The first driving block and the second driving block are both provided with a first positioning slot, the first positioning lock tongue and the second positioning lock are both slidably connected in the corresponding first positioning slot, and the first positioning slot is provided with a first spring for driving the first positioning lock tongue and the second positioning lock tongue to automatically pop out.

6. The telescopic extension rod for a valve according to claim 2, characterized in that: Two fixedly connected fixing plates are provided in the butt joint tube, a first slide groove is provided on one side of the fixing plate, a slidably connected first slider is provided in the first slide groove, the driving grooves are respectively provided in the corresponding fixing plates, and the driving grooves are respectively communicated with the corresponding first slide grooves, the end of the driving rod is fixedly connected to the first slider, and the first slider is provided with connected synchronizing parts, and the synchronizing parts are respectively connected to the corresponding first driving block and the second driving block, a fixedly connected adapter plate is provided in the butt joint tube, and the adapter groove is provided in the adapter plate.

7. The telescopic extension rod for a valve according to claim 6, characterized in that: Two second arc grooves are also provided on the inner wall of the adjusting ring groove, a first driving block is provided on the outer side of the first driving ring plate, which reciprocates back and forth along the corresponding second arc groove, a retractable first positioning sub-locking tongue is provided on the inner side wall of the first driving block and is used to engage with the corresponding positioning groove, a second driving block is provided on the outer side of the second driving ring plate, which reciprocates back and forth along the corresponding second arc groove, a retractable second positioning sub-locking tongue is provided on the inner side wall of the second driving block and is used to engage with the corresponding positioning groove, the inclined arc surfaces of the first positioning sub-locking tongue and the second positioning sub-locking tongue are in opposite directions, the first driving block and the first driving block move alternately in sequence, the first driving block is located in front of the movement direction of the first driving block, the second driving block and the second driving block move alternately in sequence, and the second driving block is located in front of the movement direction of the second driving block.

8. The telescopic extension rod for a valve according to claim 7, characterized in that: Two fixed sub-plates are provided in the butt joint pipe, and a second slide groove is provided on the fixed sub-plate, a second slide block slidably connected is provided in the second slide groove, a synchronous part connected is provided between the second slide block and the corresponding second driving sub-block, a driving sub-plate is provided on one side wall of the second slide groove, a driving sub-plate is provided in the driving sub-plate, a driving sub-plate is slidably and sealedly connected, and the driving sub-plate is fixedly connected to the second slide block. A hydraulic groove is provided in each of the fixed plates, and a hydraulic plate slidably and sealedly connected is provided in the hydraulic groove, one end of the hydraulic groove is communicated with the upper inner wall of the first slide groove, a fixedly connected linkage rod is provided on the hydraulic plate, and an end of the linkage rod is fixedly connected to the first slide block, a discharging groove is provided at the discharging end of the hydraulic groove, and a connected linkage pipe is provided at the end of the discharging groove, and the extending ends of the linkage pipe are respectively connected to the feeding ends of the corresponding driving sub-plates.

9. The telescopic extension rod for a valve according to claim 8, characterized in that: The first driving block and the second driving block are both provided with a second positioning slot, the first positioning sub-lock tongue and the second positioning sub-lock tongue are respectively arranged in the corresponding second positioning slot, and the second positioning slot is provided with a second spring for driving the first sub-lock tongue to automatically pop out.

10. A method for using a telescopic extension rod for a valve, using the telescopic extension rod for a valve as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1 first fixes the valve at a set position, then fixes the butt-joint pipe to the valve, places the valve core in the butt-joint pipe, and engages the first handle plate with the valve core; S2 then connects the telescopic tube to the butt tube, and then fixes the drive box to another set position, and at the same time, connects the telescopic tube to the drive box and fixes it; S3 When the valve needs to be opened, the first handle plate is connected and fixed to the first drive ring plate, and the second drive ring plate does not rotate synchronously at this time. The control guide tube is connected to the drive groove corresponding to the first drive ring plate, and the drive plate in the drive box is controlled to reciprocate periodically. Through hydraulic transmission, the first drive block is controlled to move back and forth along the drive groove direction, thereby driving the first positioning lock tongue back and forth. When the first drive block moves toward one end for a set distance, the first handle plate can be driven to rotate a set angle through the first positioning lock tongue. When the first drive block moves back, due to the arc surface guide of the first lock tongue, it can be automatically squeezed and contracted, so that the first lock tongue can automatically restore the initial position with the first drive block. Through the continuous reciprocating motion of the first drive block, the valve can be slowly opened automatically; S4 When the valve needs to be closed, it is only necessary to release the connection and fixation between the first handle plate and the first drive ring plate, and connect and fix the first handle plate to the second drive ring plate, and control the flow guide tube to be connected to the drive groove corresponding to the second drive ring plate. By the same principle, through the periodic reciprocating motion of the second drive block, the second positioning lock tongue can continuously drive the first handle plate to rotate, and control the valve to close slowly and automatically.

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