Wear-resistant regulating valve with high sealing performance

Abstract

The utility model discloses a high-sealing-performance wear-resistant adjusting valve which comprises a valve body, a valve seat arranged at the upper end of the valve body, a valve rod arranged on the valve seat and an adjusting hand wheel arranged at the top end of the valve rod. A support is arranged at the upper end of the valve seat, the valve rod is installed in the support, the support is provided with a mistaken touch prevention assembly, the mistaken touch prevention assembly comprises a locking shell arranged at the upper end of the support, the valve rod penetrates through the locking shell, and gear teeth are evenly arranged on the portion, located on the inner side of the locking shell, of the valve rod in a surrounding mode. The periphery of the inner side of the locking shell is movably connected with a movable plate in the radial direction of the valve rod. According to the high-sealing-performance wear-resistant adjusting valve, the valve rod can be locked after the adjusting hand wheel is screwed through the arranged mistaken touch prevention assembly, misoperation of non-staff can be avoided, a protection mechanism is added, safety is improved, and the valve rod can be conveniently and automatically locked through the arrangement of the first spring.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve field especially relates to a high sealing resistance wear adjusting valve. BACKGROUND

[0002] The high sealing resistance wear adjusting valve is a precision device for fluid control under severe working conditions, mainly applied to high-pressure, high-temperature, strong corrosion or particle-containing medium pipeline systems in the petroleum chemical industry, power industry, metallurgy industry, etc. Its core design realizes excellent sealing performance and wear resistance by adopting a multi-layer sealing structure (such as a combination of metal hard sealing and elastic soft sealing), surface hardening treatment (such as tungsten carbide spraying or hardfacing wear-resistant alloy), and optimized flow channel geometry, ensuring stable flow control accuracy and leakage level during long-term high-frequency adjustment, while reducing maintenance requirements.

[0003] However, the existing adjusting valve has significant defects in operation safety. The traditional hand wheel rotating structure usually adopts an open design, lacks a mistaken touch protection mechanism, and the hand wheel is exposed and has no authority control device. Unauthorized personnel can rotate and operate at will, which may lead to abnormal process parameters, equipment overload, and even safety accidents due to mistaken touch or malicious adjustment, especially in unattended or open industrial environments, where such safety hazards are more prominent.

[0004] Therefore, it is necessary to provide a high sealing resistance wear adjusting valve to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the utility model is to provide a high sealing resistance wear adjusting valve, which can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] A high sealing resistance wear adjusting valve, comprising a valve body, a valve seat arranged at the upper end of the valve body, a valve stem arranged on the valve seat, and an adjusting hand wheel arranged at the top end of the valve stem.

[0008] The upper end of the valve seat is provided with a bracket, the valve stem is installed in the bracket, a mistaken touch prevention assembly is arranged on the bracket, the mistaken touch prevention assembly comprises a locking shell arranged at the upper end of the bracket, and the valve stem penetrates the locking shell, the part of the valve stem inside the locking shell is uniformly surrounded by gear teeth, the inner periphery of the locking shell is movably connected with a moving plate along the radial direction of the valve stem, the side of the moving plate close to the valve stem is provided with a pawl matched with the gap between the adjacent gear teeth, the side wall of the vertical guide groove is provided with an inclined guide groove, the lower end of the bracket is vertically movably connected with a lifting frame, the top of the lifting frame is provided with a driving arm extending to the inside of the locking shell, and the upper end of the driving arm is provided with a guide wheel movably guided with the inclined guide groove.

[0009] Preferably, the lower end of the support is vertically provided with a first guide rod, and one end of the lifting frame is movably sleeved outside the first guide rod.

[0010] Preferably, a first spring is vertically arranged between the bottom of the lifting frame and the bottom of the support, and the first spring is sleeved outside the first guide rod.

[0011] Preferably, the end of the lifting frame is provided with a limiting guide assembly, the limiting guide assembly comprises a guide block arranged inside the support and corresponding to the end of the lifting frame, the upper end of the guide block is provided with a second inclined surface on one side, the lower end of the guide block is provided with a first inclined surface parallel to the second inclined surface on one side, the side of the lower end of the guide block away from the first inclined surface is provided with a notch, the end of the lifting frame is provided with a groove, the inner side of the groove is movably connected with a sliding block, the side of the sliding block close to the guide block is provided with a guide shaft, and a second spring is arranged between the side of the sliding block and the side of the inner cavity of the groove.

[0012] Preferably, the side wall of the moving plate is provided with a vertical guide groove at the lower end of the inclined guide groove, and the inner wall of the vertical guide groove and the inner wall of the inclined guide groove are smoothly connected.

[0013] Preferably, the inner side of the groove is provided with a second guide rod, and the sliding block is movably sleeved outside the second guide rod.

[0014] The second spring is sleeved outside the second guide rod.

[0015] Preferably, the side wall of the lifting frame is detachably provided with a handle.

[0016] Compared with the prior art, the utility model provides a high sealing wear -resisting control valve has the following beneficial effects:

[0017] The high sealing wear -resisting control valve, through the setting of the anti -touching component can lock the valve stem after the screwing of the adjusting hand wheel, can avoid the misoperation of non -working personnel, has increased the protection mechanism, has increased the security, the setting of the first spring can be convenient to the locking of the valve stem, cooperation the setting of the limiting guide assembly can be when needing to screw the adjusting hand wheel and press down the lifting frame to realize the unlocking of the valve stem and the brake of the anti -touching component, avoided the reset of the first spring, after the screwing of the adjusting hand wheel, continue to press down the lifting frame can realize the brake removal, and the first spring can reset and lock the valve stem through the anti -touching component again, convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model;

[0019] Figure 2It is the structure schematic view of the bracket of the utility model;

[0020] Figure 3 It is the structure schematic view of the valve rod being unlocked state of the utility model;

[0021] Figure 4 It is the structure schematic view of the utility model Figure 3 It is the structure schematic view of the base on the disassembly state;

[0022] Figure 5 It is the structure schematic view of the position relation of the guide block and the guide shaft when the valve rod is locked state of the utility model.

[0023] In the drawing: 1, valve body;2, valve seat;3, adjusting hand wheel;4, bracket;5, valve rod;6, locking shell;7, lifting frame;8, handle;9, guide block;10, driving arm;11, first guide rod;12, first spring;13, gear teeth;14, moving plate;15, inclined guide groove;16, vertical guide groove;17, guide wheel;18, recess;19, sliding block;20, guide shaft;21, first inclined surface;22, second inclined surface;23, notch;24, second guide rod;25, second spring;26, pawl. DETAILED DESCRIPTION

[0024] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0025] As Figures 1-5 Indicated, a kind of high sealing wear-resistant control valve, including valve body 1, the valve seat 2 of setting in the upper end of valve body 1, the valve rod 5 of setting on valve seat 2 and the adjusting hand wheel 3 of setting in the top of valve rod 5, the upper end of valve seat 2 is provided with bracket 4, valve rod 5 is installed in bracket 4, bracket 4 is provided with anti-misoperation component, anti-misoperation component includes the locking shell 6 of setting in the upper end of bracket 4, and valve rod 5 penetrates locking shell 6, the part of valve rod 5 on the inside of locking shell 6 is evenly surrounded with gear teeth 13, the periphery of the inside of locking shell 6 is movably connected with moving plate 14 along the radial direction of valve rod 5, the side of moving plate 14 close to valve rod 5 is provided with pawl 26, and the clearance of adjacent gear teeth 13 is engaged with the clearance of adjacent gear teeth 13, vertical guide groove 16 side wall is provided with inclined inclined guide groove 15, the lower end of bracket 4 is movably connected with lifting frame 7, the top of lifting frame 7 is provided with driving arm 10 extending to the inside of locking shell 6, and the upper end of driving arm 10 is provided with guide wheel 17, and inclined guide groove 15 is movably guided with inclined guide groove 15.

[0026] The lower end of the support 4 is vertically provided with a first guide rod 11, one end of the lifting frame 7 is movably sleeved outside the first guide rod 11, the first guide rod 11 can increase the stability of the lifting frame 7, the bottom of the lifting frame 7 and the bottom of the support 4 are vertically provided with a first spring 12, the first spring 12 can facilitate the automatic rising reset of the lifting frame 7, and the first spring 12 is sleeved outside the first guide rod 11, so that the stability of the first spring 12 is increased.

[0027] In order to facilitate the stop and rising of the lifting frame 7 according to the needs, a limiting guide assembly is arranged at the end of the lifting frame 7, the limiting guide assembly comprises a guide block 9 arranged inside the support 4 and corresponding to the end of the lifting frame 7, the upper end of the guide block 9 is provided with a second inclined surface 22, the lower end of the guide block 9 is provided with a first inclined surface 21 parallel to the second inclined surface 22, the side of the lower end of the guide block 9 away from the first inclined surface 21 is provided with a notch 23, the end of the lifting frame 7 is provided with a groove 18, the inner side of the groove 18 is slidably connected with a sliding block 19, the side of the sliding block 19 close to the guide block 9 is provided with a guide shaft 20, the side of the sliding block 19 and the side of the inner cavity of the groove 18 are provided with a second spring 25, and when the second spring 25 is in the reset state, the guide shaft 20 corresponds to the middle part of the second inclined surface 22 and the first inclined surface 21, the inner side of the groove 18 is provided with a second guide rod 24, the sliding block 19 is movably sleeved outside the second guide rod 24, the first inclined surface 21 can increase the stability of the sliding block 19, and in order to increase the stability of the second spring 25, the second spring 25 is sleeved outside the second guide rod 24.

[0028] In order to adapt to the continuous downward movement of the lifting frame 7 after the rotation of the adjusting hand wheel 3 is completed, a vertical guide groove 16 is arranged on the side wall of the moving plate 14 and located at the lower end of the inclined guide groove 15, and the inner wall of the vertical guide groove 16 and the inner wall of the inclined guide groove 15 are smoothly connected.

[0029] In addition, a handle 8 is detachably arranged on the side wall of the lifting frame 7, and the handle 8 can be fixed in a quick connection mode of plug-in or clamping.

[0030] When using, when the flow needs to be adjusted, the handle 8 is temporarily fixed on the side wall of the lifting frame 7, and then the handle 8 is pressed to drive the lifting frame 7 to move downwards, the first guide rod 11 guides, the first spring 12 is compressed, the lifting frame 7 drives the driving arm 10 to move downwards, the driving arm 10 drives the guide wheel 17 to move downwards, the moving plate 14 moves outwards under the action of the inclined guide groove 15, the gap between the tooth 13 and the clamping tooth 26 is separated, the valve rod 5 is unlocked, and the lifting frame 7 drives the sliding block 19 and the guide shaft 20 to move downwards synchronously, the guide shaft 20 drives the sliding block 19 to move and compresses the second spring 25 under the guidance of the second inclined surface 22, and then the guide shaft 20 corresponds to the side wall of the gap 23 of the guide block 9, and then the guide shaft 20 moves downwards along the side wall of the guide block 9 as the lifting frame 7 moves downwards, when the guide wheel 17 reaches the lower end of the inclined guide groove 15, the guide shaft 20 reaches the gap 23, at this time, the valve rod 5 is just unlocked, the guide shaft 20 is limited by the gap 23, and then the screwing operation of the adjusting handle 3 can be performed, after the end, the lifting frame 7 is continuously pressed downwards through the handle 8, the guide wheel 17 enters the vertical guide groove 16 from the inclined guide groove 15, at this time, the moving plate 14 does not move, the guide shaft 20 moves upwards along the side wall of the gap 23 as the guide block 9 moves away from the gap 23, when the guide shaft 20 reaches the bottom of the guide block 9, the second spring 25 is reset, and then the guide shaft 20 corresponds to the middle part of the first inclined surface 21, then the handle 8 is loosened, the first spring 12 is reset, the lifting frame 7 moves upwards, the driving arm 10 drives the guide wheel 17 to enter the inclined guide groove 15 from the vertical guide groove 16, and then drives the moving plate 14 to reset, the moving plate 14 drives the gap between the tooth 13 and the clamping tooth 26 to be clamped, and then the valve rod 5 is locked, the guide shaft 20 moves upwards along the side wall of the guide block 9 away from the gap 23 under the guidance of the first inclined surface 21, and the second spring 25 is stretched, the valve rod 5 is locked, the second spring 25 is reset again, the guide shaft 20 corresponds to the upper middle part of the second inclined surface 22 again, and finally the handle 8 can be removed.

[0031] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-seal-wear-resistance regulating valve characterized by, The valve body (1), the vertical guide groove (16), the valve seat (2) arranged on the upper end of the valve body (1), the valve rod (5) arranged on the valve seat (2) and the adjusting hand wheel (3) arranged on the top end of the valve rod (5); The upper end of the valve seat (2) is provided with a support (4), the valve rod (5) is installed in the support (4), the support (4) is provided with an anti-mis-touch assembly, the anti-mis-touch assembly comprises a locking shell (6) arranged on the upper end of the support (4), and the valve rod (5) penetrates through the locking shell (6), the part of the valve rod (5) inside the locking shell (6) is uniformly provided with a gear tooth (13), the inner side of the locking shell (6) is movably connected with a moving plate (14) along the radial direction of the valve rod (5), the side of the moving plate (14) close to the valve rod (5) is provided with a clamping tooth (26) matched with the gap between the adjacent gear teeth (13), the side wall of the vertical guide groove (16) is provided with an inclined inclined guide groove (15), the lower end of the support (4) is movably connected with a lifting frame (7), the top of the lifting frame (7) is provided with a driving arm (10) extending to the inside of the locking shell (6), and the upper end of the driving arm (10) is provided with a guide wheel (17) movably guided with the inclined guide groove (15).

2. A high containment, wear resistant control valve according to claim 1, wherein: The lower end of the support (4) is vertically provided with a first guide rod (11), and one end of the lifting frame (7) is movably sleeved outside the first guide rod (11).

3. A high containment, wear resistant control valve according to claim 2, wherein: The first spring (12) is sleeved outside the first guide rod (11) between the bottom of the lifting frame (7) and the bottom of the support (4).

4. A high containment, wear resistant control valve according to claim 3, wherein: The end of the lifting frame (7) is provided with a limiting guide assembly, the limiting guide assembly comprises a guide block (9) arranged inside the support (4) and corresponding to the end of the lifting frame (7), the upper end of the guide block (9) is provided with a second inclined surface (22) on one side, the lower end of the guide block (9) is provided with a first inclined surface (21) parallel to the second inclined surface (22) on one side, the side of the lower end of the guide block (9) away from the first inclined surface (21) is provided with a notch (23), the end of the lifting frame (7) is provided with a groove (18), the inner side of the groove (18) is movably connected with a sliding block (19), the side of the sliding block (19) close to the guide block (9) is provided with a guide shaft (20), and the side of the sliding block (19) and the side of the inner cavity of the groove (18) are provided with a second spring (25), and when the second spring (25) is reset, the guide shaft (20) corresponds to the middle part of the second inclined surface (22) and the first inclined surface (21).

5. A high containment, wear resistant control valve according to claim 4, wherein: The side wall of the moving plate (14) is provided with a vertical guide groove (16) located at the lower end of the inclined guide groove (15), and the inner wall of the vertical guide groove (16) and the inner wall of the inclined guide groove (15) are smoothly connected.

6. A high containment, wear resistant control valve according to claim 4 wherein: The inner side of the groove (18) is provided with a second guide rod (24), and the sliding block (19) is movably sleeved outside the second guide rod (24). The second spring (25) is sleeved outside the second guide rod (24).

7. A high containment, wear resistant trim valve according to any one of claims 1-6, characterized in that: The side wall of the lifting frame (7) is detachably provided with a handle (8).

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