Quick-closing valve with locking structure

Abstract

The invention provides a quick-closing valve with a locking structure, and relates to the technical field of quick-closing valve equipment.The quick-closing valve comprises a valve body, a mounting sleeve is arranged at the top of the valve body, flange pieces are arranged at the left end and the right end of the valve body, a valve seat is arranged in the valve body, and a connecting sleeve is arranged at the top of the valve seat. By means of the detachable structure, later overhaul and maintenance are facilitated, and the problems that when an existing quick-closing valve is used, the valve rod and the valve element are generally of an integral structure, the valve rod and the valve element are installed on the valve body in a penetrating mode, the disassembly and assembly processes are tedious, and the valve rod and the valve element are not convenient to disassemble and assemble are solved. The problems that in the prior art, an existing valve is inconvenient to overhaul and maintain in the later period, opening and closing are generally conducted through rotation of a hand wheel, operation is strenuous, the rapid opening and closing process is not easy to achieve, in the opening process of the valve, the rotating opening angle of an internal valve element is difficult to observe, and the flow is not easy to control effectively are solved.

Description

Technical Field

[0001] The invention relates to the technical field of quick-closing valve equipment, and in particular to a quick-closing valve with a locking structure. Background Art

[0002] A quick-closing valve is a valve that is used to close quickly in an emergency, designed to protect equipment and system safety. Quick-closing valves are widely used in industrial boilers, water supply systems, pipeline medium cutoff and transportation, etc. They usually adopt a straight-through structure to ensure that the fluid flow can be quickly cut off in an emergency to prevent accidents.

[0003] When the existing quick-closing valve is in use, the valve stem and the valve core are usually an integral structure, which is installed through the valve body. Due to the cumbersome disassembly and assembly process, it is not convenient for subsequent inspection and maintenance. In addition, the friction between the valve stem and the seal increases with the use time of the valve, and the friction parts may wear and rust, further increasing the friction, making it difficult to achieve a quick opening and closing process. In addition, the valve will be in a harsh high-temperature and high-pressure working environment, which makes it difficult to install additional observation equipment or sensors, and it is not easy to quickly locate the position and movement state of the valve core, which increases the difficulty of controlling the flow. Summary of the invention

[0004] The disclosed embodiment relates to a quick-closing valve with a locking structure. Through the cooperation of the spline shaft and the spline sleeve and the rebound pulling effect of the tension spring, the ratchet gear can be engaged in the ratchet sleeve, thereby realizing the connection process between the valve core and the valve stem. The detachable structure facilitates subsequent inspection and maintenance.

[0005] In a first aspect of the present disclosure, a quick-closing valve with a locking structure is provided, specifically comprising: a valve body, a mounting sleeve is provided on the top of the valve body, flanges are provided on the left and right ends of the valve body, a valve seat is provided in the valve body, a connecting sleeve is provided on the top of the valve seat, and the connecting sleeve is located in the mounting sleeve; A valve core is provided in the valve seat; a ratchet gear is provided in the connecting sleeve; an adjusting frame is provided in the connecting sleeve, and the adjusting frame is located above the ratchet gear; a valve stem is provided in the connecting sleeve, and the ratchet gear is provided on the valve stem; a fixed top seat is fixedly installed on the top of the mounting sleeve, and the valve stem is rotatably connected to the fixed top seat through a bearing; a connecting piece is provided on the top of the valve stem, and the connecting piece is located above the fixed top seat; a positioning frame is provided on the connecting piece; a hand wheel is provided on the top of the connecting piece.

[0006] In at least some embodiments, a valve shaft is provided in the middle of the valve core, and the valve shaft is rotatably connected to the valve seat via a bearing, a ratchet sleeve is provided at the top end of the valve shaft, and the ratchet sleeve is located in the connecting sleeve.

[0007] In at least some embodiments, the ratchet gear is matched with the ratchet sleeve, and a spline sleeve is provided at the center position of the ratchet gear, and a rotating sleeve is provided at the top end of the spline sleeve.

[0008] In at least some embodiments, the adjusting frame is in a "C" - shaped structure, and an installation ring is provided on the adjusting frame. Two first pin shafts are provided on the outer peripheral surface of the installation ring, and the adjusting frame is rotationally connected to the installation ring through the first pin shafts. And the installation ring is rotationally sleeved on the rotating sleeve. A support rod is provided on one side of the adjusting frame. Two second pin shafts are provided on the left and right sides of the support rod, and the two second pin shafts are distributed symmetrically. The support rod passes through the connecting sleeve and the installation sleeve at the same time, and the support rod is rotationally connected to the connecting double - ears on the installation sleeve through the second pin shaft. A pressing block is provided at the end of the support rod.

[0009] In at least some embodiments, a spline shaft is provided at the bottom end of the valve stem, a support circular plate is provided at the bottom end of the spline shaft, a tension spring is sleeved on the spline shaft, the ratchet gear is slidably connected to the spline shaft through the spline sleeve, and both ends of the tension spring are respectively connected to the spline sleeve and the support circular plate.

[0010] In at least some embodiments, a bearing seat is provided at the top of the fixed top seat, a support sleeve frame is provided at the middle position at the top of the bearing seat, and the rotating shaft of the handwheel is rotationally connected to the support sleeve frame. A positioning card plate is provided in the support sleeve frame, a card slot is provided on one side of the positioning card plate, and the card slots are distributed in an annular array. The connecting piece is located in the support sleeve frame and above the positioning card plate.

[0011] In at least some embodiments, a rotating ring frame is rotatably installed on the bearing seat, a fixed column is provided at the top of the rotating ring frame, a limiting screw rod is provided at the top end of the fixed column, a compression spring is sleeved on the limiting screw rod, and an adjusting nut is slidably installed on the limiting screw rod by means of threads.

[0012] In at least some embodiments, an installation groove is provided at the middle position of the connecting piece, and a limiting shaft is provided on the connecting piece and located in the installation groove.

[0013] In at least some embodiments, the positioning frame passes through the installation groove, and the positioning frame is rotationally connected to the connecting piece through the limiting shaft. A limiting through - groove is provided at the rear position of the positioning frame, and a positioning block is provided at the end of the front - part arc structure of the positioning frame.

[0014] In at least some embodiments, the positioning block of the positioning frame is clamped with the card slot of the positioning card plate, the limiting screw rod passes through the limiting through - groove of the positioning frame, and the compression spring is supported between the positioning frame and the fixed column.

[0015] The present invention provides a quick - closing valve with a locking structure, having the following beneficial effects: The present invention provides a ratchet gear and a ratchet sleeve. The spline shaft and the spline sleeve cooperate with each other and utilize the rebound pulling effect of the tension spring to enable the ratchet gear to be engaged in the ratchet sleeve, thereby realizing the connection process between the valve core and the valve stem. The detachable structure facilitates subsequent inspection and maintenance.

[0016] In addition, the present invention can manually adjust the pressing block, and through the cooperation between the adjusting frame and the first pin shaft, the mounting ring drives the rotating sleeve and the ratchet gear to slide up and down along the spline shaft, which can release the limit on the valve core and meet the rapid opening and closing process of the valve core. This eliminates the action of rotating the control valve stem, simplifies the operating steps of the valve, and is convenient and labor-saving to use.

[0017] In addition, the present invention is provided with a positioning clamping plate and a positioning frame. By twisting the adjusting screw sleeve and utilizing the rebound effect of the compression spring, the clamping process of the positioning block and the positioning clamping plate is completed, thereby realizing the locking of the top handwheel. Moreover, through the position of the positioning frame corresponding to the positioning clamping plate, the rotation opening angle of the valve core can be clearly observed, and the flow rate can be effectively controlled at the same time. The overall use process of the valve is optimized and the structure is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture: Figure 1 A schematic diagram showing the overall structure of the present application; Figure 2 This application shows Figure 1 Schematic diagram of the resulting rotational perspective; Figure 3 A schematic diagram showing a cross-sectional view of the valve body of the present application; Figure 4 A schematic diagram showing the ratchet sleeve and the ratchet gear of the present application in a disassembled state; Figure 5 A schematic diagram showing the ratchet gear, the adjustment frame and the valve stem of the present application in a disassembled state; Figure 6 A schematic diagram showing the fixed top seat, connecting member, positioning frame and hand wheel of the present application is shown; Figure 7 A schematic diagram of a fixed top seat of the present application is shown; Figure 8 A schematic diagram showing the disassembled state of the connecting piece and the positioning frame of the present application is shown.

[0021] List of reference numerals: 1. Valve body; 101. Mounting sleeve; 102. Flange; 103. Valve seat; 104. Connecting sleeve; 2. Valve core; 201. Valve shaft; 202. Ratchet sleeve; 3. Ratchet gear; 301. Spline sleeve; 302. Rotating sleeve; 4. Adjusting frame; 401. Mounting ring; 402. First pin shaft; 403. Support rod; 404. Second pin shaft; 405. Pressing block; 5. Valve stem; 501. Spline shaft; 502 , supporting circular plate; 503, tension spring; 6, fixed top seat; 601, bearing seat; 602, supporting sleeve; 603, positioning clamp; 604, rotating ring frame; 605, fixing column; 606, limiting screw; 607, compression spring; 608, adjusting screw sleeve; 7, connecting piece; 701, mounting groove; 702, limiting shaft; 8, positioning frame; 801, limiting through groove; 802, positioning block; 9, handwheel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 8 : The present invention proposes a quick-closing valve with a locking structure, comprising: a valve body 1, a mounting sleeve 101 is provided on the top of the valve body 1, flanges 102 are provided on the left and right ends of the valve body 1, a valve seat 103 is provided inside the valve body 1, a connecting sleeve 104 is provided on the top of the valve seat 103, and the connecting sleeve 104 is located inside the mounting sleeve 101; A valve core 2 is provided in the valve seat 103; a ratchet gear 3 is provided in the connecting sleeve 104; an adjusting frame 4 is provided in the connecting sleeve 104, and the adjusting frame 4 is located above the ratchet gear 3; a valve stem 5 is provided in the connecting sleeve 104, and the ratchet gear 3 is arranged on the valve stem 5; a fixed top seat 6 is fixedly installed on the top of the mounting sleeve 101, and the valve stem 5 is rotatably connected to the fixed top seat 6 through a bearing; a connecting piece 7 is provided on the top of the valve stem 5, and the connecting piece 7 is located above the fixed top seat 6; a positioning frame 8 is provided on the connecting piece 7; a hand wheel 9 is provided on the top of the connecting piece 7.

[0024] In the present disclosure, Figure 3 and Figure 4 As shown, a valve shaft 201 is provided in the middle of the valve core 2, and the valve shaft 201 is rotatably connected to the valve seat 103 through a bearing, and a ratchet sleeve 202 is provided at the top of the valve shaft 201, and the ratchet sleeve 202 is located in the connecting sleeve 104; The ratchet gear 3 matches with the ratchet sleeve 202, and a spline sleeve 301 is provided at the central position of the ratchet gear 3, and a rotating sleeve 302 is provided at the top end of the spline sleeve 301; A spline shaft 501 is provided at the bottom end of the valve stem 5, a support circular plate 502 is provided at the bottom end of the spline shaft 501, a tension spring 503 is sleeved on the spline shaft 501, the ratchet gear 3 is slidably connected with the spline shaft 501 through the spline sleeve 301, and both ends of the tension spring 503 are respectively connected with the spline sleeve 301 and the support circular plate 502. In the present invention, the ratchet gear 3 and the ratchet sleeve 202 are provided, through the mutual cooperation of the spline shaft 501 and the spline sleeve 301, and by utilizing the rebounding and pulling effect of the tension spring 503, the ratchet gear 3 can be clamped in the ratchet sleeve 202, so as to realize the connection process between the valve core 2 and the valve stem 5.

[0025] In the embodiment of the present disclosure, as Figure 5 shown, the adjusting frame 4 is of a "C" - shaped structure, and an installation ring 401 is provided on the adjusting frame 4. Two first pin shafts 402 are provided on the outer peripheral surface of the installation ring 401, and the adjusting frame 4 is rotationally connected with the installation ring 401 through the first pin shafts 402. And the installation ring 401 is rotationally sleeved on the rotating sleeve 302. A support rod 403 is provided on one side of the adjusting frame 4. Second pin shafts 404 are provided on the left and right sides of the support rod 403, and the two second pin shafts 404 are distributed symmetrically. The support rod 403 penetrates through the connecting sleeve 104 and the installation sleeve 101 at the same time, and the support rod 403 is rotationally connected with the connecting double - ears on the installation sleeve 101 through the second pin shafts 404. A pressing block 405 is provided at the end of the support rod 403. In the present invention, the pressing block 405 can be manually adjusted. Through the mutual cooperation of the adjusting frame 4 and the first pin shafts 402, the installation ring 401 drives the rotating sleeve 302 and the ratchet gear 3 to slide up and down along the spline shaft 501, so as to meet the rapid opening and closing process of the valve core 2.

[0026] Embodiment 2, on the basis of Embodiment 1, as Figure 7 and Figure 8 shown, a bearing seat 601 is provided at the top of the fixed top seat 6, a support sleeve frame 602 is provided at the middle position at the top of the bearing seat 601, and the rotating shaft of the hand wheel 9 is rotationally connected with the support sleeve frame 602. A positioning card plate 603 is provided in the support sleeve frame 602, a card slot is provided on one side of the positioning card plate 603, and the card slots are distributed in an annular array. The connecting piece 7 is located in the support sleeve frame 602, and the connecting piece 7 is located above the positioning card plate 603; A rotating ring frame 604 is rotatably installed on the bearing seat 601. A fixed column 605 is provided at the top of the rotating ring frame 604. A limit screw rod 606 is provided at the top end of the fixed column 605. A compression spring 607 is sleeved on the limit screw rod 606. An adjusting nut 608 is slidably installed on the limit screw rod 606 by means of threads; A mounting groove 701 is provided in the middle of the connecting member 7, a limiting shaft 702 is provided on the connecting member 7, and the limiting shaft 702 is located in the mounting groove 701; The positioning frame 8 passes through the installation slot 701, and the positioning frame 8 is rotatably connected to the connecting member 7 through the limiting shaft 702. A limiting through slot 801 is provided at the rear of the positioning frame 8, and a positioning block 802 is provided at the end of the arc-shaped structure at the front of the positioning frame 8. The positioning block 802 of the positioning frame 8 is engaged with the slot of the positioning card plate 603, and the limiting screw 606 passes through the limiting slot 801 of the positioning frame 8, and the compression spring 607 is supported between the positioning frame 8 and the fixed column 605. The present invention is provided with a positioning card plate 603 and a positioning frame 8. By screwing the adjusting screw sleeve 608 and utilizing the rebound effect of the compression spring 607, the engagement process of the positioning block 802 and the positioning card plate 603 is completed, thereby realizing the locking of the top handwheel 9. Moreover, through the position of the positioning frame 8 corresponding to the positioning card plate 603, the rotation opening angle of the valve core 2 can be clearly observed, and the flow rate can be effectively controlled at the same time, and the structure is more reasonable.

[0027] The working principle of this embodiment: when in use, the ratchet gear 3 can be engaged in the ratchet sleeve 202 through the cooperation between the spline shaft 501 and the spline sleeve 301, and the rebound pulling effect of the tension spring 503 is utilized, thereby realizing the connection process between the valve core 2 and the valve stem 5; the pressing block 405 can be manually adjusted, and the adjusting frame 4 and the first pin shaft 402 cooperate with each other, so that the mounting ring 401 drives the rotating sleeve 302 and the ratchet gear 3 to slide up and down along the spline shaft 501, so as to meet the rapid opening and closing process of the valve core 2; by screwing the adjusting screw sleeve 608, the rebound effect of the compression spring 607 is utilized to complete the engagement process of the positioning block 802 and the positioning clamping plate 603, thereby realizing the locking of the top handwheel 9, and through the position of the positioning frame 8 corresponding to the positioning clamping plate 603, the rotation opening angle of the valve core 2 can be clearly observed, and the flow rate can be effectively controlled at the same time.

[0028] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A quick-closing valve with a locking structure, characterized in that: Comprising: A valve body, an installation sleeve is provided at the top of the valve body, flange members are provided at the left and right ends of the valve body, a valve seat is provided inside the valve body, a connection sleeve is provided at the top of the valve seat, and the connection sleeve is located inside the installation sleeve; A valve core is provided inside the valve seat; a ratchet gear is provided inside the connection sleeve; an adjusting frame is provided inside the connection sleeve, and the adjusting frame is located above the ratchet gear; a valve rod is provided inside the connection sleeve, and the ratchet gear is arranged on the valve rod; a fixed top seat is fixedly installed at the top of the installation sleeve, and the valve rod is rotatably connected to the fixed top seat through a bearing; a connecting member is provided at the top end of the valve rod, and the connecting member is located above the fixed top seat; a positioning frame is provided on the connecting member; a hand wheel is provided at the top of the connecting member.

2. The quick closing valve with a locking structure according to claim 1, characterized in that A valve shaft is provided at the middle position of the valve core, and the valve shaft is rotatably connected to the valve seat through a bearing, a ratchet sleeve is provided at the top end of the valve shaft, and the ratchet sleeve is located inside the connection sleeve.

3. The quick closing valve with a locking structure according to claim 1, characterized in that The ratchet gear is matched with the ratchet sleeve, a spline sleeve is provided at the center position of the ratchet gear, and a rotating sleeve is provided at the top end of the spline sleeve.

4. The quick closing valve with a locking structure according to claim 1, characterized in that The adjusting frame is in a "C" shape structure, an installation ring is provided on the adjusting frame, two first pin shafts are provided on the outer peripheral surface of the installation ring, and the adjusting frame is rotatably connected to the installation ring through the first pin shafts, and the installation ring is rotatably sleeved on the rotating sleeve, a support rod is provided on one side of the adjusting frame, two second pin shafts are provided on the left and right sides of the support rod, and the two second pin shafts are distributed symmetrically, the support rod penetrates through the connection sleeve and the installation sleeve at the same time, and the support rod is rotatably connected to the connection double ears on the installation sleeve through the second pin shafts, and a pressing block is provided at the end of the support rod.

5. The quick closing valve with a locking structure according to claim 1, characterized in that A spline shaft is provided at the bottom end of the valve rod, a support circular plate is provided at the bottom end of the spline shaft, a tension spring is sleeved on the spline shaft, the ratchet gear is slidably connected to the spline shaft through the spline sleeve, and the two ends of the tension spring are respectively connected to the spline sleeve and the support circular plate.

6. The quick closing valve with a locking structure according to claim 1, characterized in that A bearing seat is provided at the top of the fixed top seat, a support sleeve frame is provided at the middle position at the top of the bearing seat, and the rotating shaft of the hand wheel is rotatably connected to the support sleeve frame, a positioning card plate is provided inside the support sleeve frame, a card slot is provided on one side of the positioning card plate, and the card slots are distributed in an annular array, the connecting member is located inside the support sleeve frame, and the connecting member is located above the positioning card plate.

7. The quick closing valve with a locking structure according to claim 6, characterized in that A rotating ring frame is rotatably installed on the bearing seat, a fixed column is provided at the top of the rotating ring frame, a limit screw rod is provided at the top end of the fixed column, a compression spring is sleeved on the limit screw rod, and an adjusting nut is slidably installed on the limit screw rod by means of threads.

8. The quick closing valve with a locking structure according to claim 1, characterized in that An installation groove is provided at the middle position of the connecting member, and a limit shaft is provided on the connecting member, and the limit shaft is located inside the installation groove.

9. The quick-closing valve with a locking structure according to claim 1, characterized in that: The positioning frame passes through the installation slot, and is rotatably connected to the connecting piece via a limiting shaft. A limiting through slot is provided at the rear of the positioning frame, and a positioning block is provided at the end of the arc-shaped structure at the front of the positioning frame.

10. A quick-closing valve with a locking structure according to claim 9, characterized in that: The positioning block of the positioning frame is clamped with the clamping groove of the positioning clamping plate, and the limiting screw penetrates the limiting through groove of the positioning frame, and the compression spring is supported between the positioning frame and the fixing column.

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