Valve with double-sealing function

Abstract

The utility model relates to the technical field of valves, and discloses a valve with a dual-sealing function, which comprises a main pipeline, the outer surface of the main pipeline is fixedly connected with a connecting pipe, the upper end of the connecting pipe is fixedly connected with a driving box, the connecting pipe is internally provided with a connecting screw rod which is the same as the connecting screw rod in the prior art, and the driving box is fixedly connected with a driving shaft. A through groove extending out of the lower surface of the driving box is formed in the bottom wall of the driving box, the upper end of the connecting screw rod extends into the driving box through the through groove, the outer surface of the connecting screw rod is sleeved with a worm gear, the inner wall of the driving box is rotationally connected with a worm, the worm gear is in meshed connection with the worm, and the outer surface of the worm is sleeved with a mounting sleeve. The telescopic ratchets are arranged in a telescopic mode, so that the telescopic ratchets cannot be driven to rotate only through the rotating shaft and the ratchet wheel, the situation that the valve is opened due to the fact that the connecting screw rotates when the valve is touched by mistake is avoided, the safety of the valve in the using process is improved, and economic losses caused by the mistaken touch are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with double sealing functions. Background Art

[0002] Marine valves are devices used to control the pressure, flow and flow direction of fluids in ship pipelines to meet the environmental conditions of ships. Valves are control devices for fluid pipelines. Their basic functions are to connect or cut off the flow of pipeline media, change the flow of media, change the flow direction of media, adjust the pressure and flow of media, and protect the normal operation of pipeline equipment.

[0003] After searching, a Chinese patent document discloses a marine valve with a double sealing function [application number: CN202122442735.8]. It includes a valve seat, a lower shell is fixedly installed on the top of the valve seat, and an upper shell is arranged on the top of the lower shell.

[0004] The device disclosed in the patent arranges flanges, fastening bolts, fastening nuts, sealing rings, sealing rings and sealing packings so that the sealing rings and the sealing rings are in close contact with the valve stem, thereby preventing liquid from contacting the connecting screw, increasing the service life of the connecting screw, and solving the problem of single sealing. However, in daily users of the valve, accidental opening due to accidental contact and scratching is often caused, and it is generally difficult to detect the accidental opening, and it is often not detected until a large amount of liquid has leaked, causing great losses. In view of this, we propose a valve with double sealing function. Utility Model Content

[0005] The purpose of the utility model is to provide a valve with a double sealing function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve with a double sealing function, comprising a main pipeline, a connecting pipe is fixedly connected to the outer surface of the main pipeline, a driving box is fixedly connected to the upper end of the connecting pipe, a connecting screw identical to the comparative patent is arranged inside the connecting pipe, a through groove extending from the lower surface of the driving box is provided on the bottom wall of the driving box, the upper end of the connecting screw extends into the driving box through the through groove, a worm wheel is sleeved on the outer surface of the connecting screw, a worm is rotatably connected to the inner wall of the driving box, the worm wheel is meshed with the worm, a mounting sleeve is sleeved on the outer surface of the worm, a cavity is provided inside the worm, a telescopic groove extending into the cavity is provided on the outer surface of the mounting sleeve, a telescopic ratchet is slidably connected inside the telescopic groove, a push rod is fixedly connected to the side surface of the telescopic ratchet close to the cavity, a rotating shaft is rotatably sleeved on the inner wall of the driving box, the left end of the rotating shaft rotates and penetrates into the driving box, a ratchet is fixedly connected to the left end of the rotating shaft, and an anti-mistaken touch component is arranged inside the cavity.

[0007] Preferably, the anti-mistouch component includes a displacement rod, which is slidably mounted inside the cavity, the right end of the displacement rod is fixedly connected to a conical block, the left end of the displacement rod is rotatably connected to a control rod, the control rod is movably mounted inside the cavity, and the left end of the control rod movably passes through the left surface of the drive box.

[0008] Preferably, a mounting groove is provided on the outer surface of the displacement rod, a reset ring is fixedly connected to the inner wall of the cavity, a reset spring is fixedly connected to the left surface of the reset ring, and the left end of the reset spring is fixedly connected to the left inner wall of the mounting groove.

[0009] Preferably, spring grooves are respectively provided on the left and right inner walls of the telescopic groove, and the left and right side surfaces of the push rod are respectively fixedly connected with limit blocks, and the two limit blocks are respectively slidably connected to the two spring grooves.

[0010] Preferably, the lower surfaces of the two limit blocks are respectively fixedly connected with second springs, and the lower ends of the two second springs are respectively fixedly connected to the bottom walls of the two telescopic slots.

[0011] Preferably, the right end of the rotating shaft rotates and passes through the right side surface of the driving box, the right end of the rotating shaft is fixedly connected with a control valve, and the ratchet is meshed and connected with the telescopic ratchet.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model adopts the retractable arrangement of the retractable ratchet, so that the retractable ratchet cannot be driven to rotate only by the rotating shaft and the ratchet, thereby preventing the connecting screw from rotating and causing the valve to open when accidentally touched, thereby improving the safety of the valve when in use, avoiding economic losses caused by accidentally touching, and through the cooperation of the tapered block and the displacement rod, when it is necessary to operate the valve, the push rod can be restricted by the displacement rod, so that the push rod cannot enter the interior of the cavity, so that the ratchet can drive the retractable ratchet to rotate, and then the valve is operated. At the same time, since the two are in planar contact when closing, the valve can still be operated without the need to operate additional content.

[0014] The utility model can utilize the inclined bottom wall of the drainage trough to concentrate the water flow and discharge it through the drainage pipe. Since the drainage pipe is perpendicular to the ground and the diameter of the lower end of the pipe body is smaller than the diameter of the upper end, the problem of the traditional structure being blocked from rainwater discharge due to strong winds can be minimized, thereby improving the smoothness and stability of drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the drive box of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the cavity of the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 1. main pipeline; 2. connecting pipe; 3. drive box; 4. connecting screw; 5. through groove; 6. worm; 7. mounting sleeve; 8. cavity; 9. telescopic groove; 10. telescopic ratchet; 11. push rod; 12. rotating shaft; 13. ratchet; 14. displacement rod; 15. conical block; 16. mounting groove; 17. reset ring; 18. reset spring; 19. control rod; 20. spring groove; 21. limit block; 22. second spring; 23. control valve; 24. worm gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4As shown, a valve with a double sealing function includes a main pipeline 1, a connecting pipe 2 is fixedly connected to the outer surface of the main pipeline 1, a driving box 3 is fixedly connected to the upper end of the connecting pipe 2, a connecting screw 4 which is the same as that of the comparative patent is arranged inside the connecting pipe 2, a through groove 5 extending from the lower surface of the driving box 3 is opened on the bottom wall, the upper end of the connecting screw 4 extends into the driving box 3 through the through groove 5, a worm gear 24 is sleeved on the outer surface of the connecting screw 4, a worm 6 is rotatably connected to the inner wall of the driving box 3, the worm gear 24 is meshed with the worm 6, a mounting sleeve 7 is sleeved on the outer surface of the worm 6, a cavity 8 is opened inside the worm 6, and a cavity 8 is extended into the cavity 8 on the outer surface of the mounting sleeve 7 The telescopic groove 9 has a telescopic ratchet 10 slidably connected inside the telescopic groove 9, and a push rod 11 is fixedly connected to the surface of the telescopic ratchet 10 on one side close to the cavity 8. A rotating shaft 12 is rotatably sleeved on the inner wall of the driving box 3, and the left end of the rotating shaft 12 rotates and penetrates into the interior of the driving box 3. A ratchet 13 is fixedly connected to the left end of the rotating shaft 12. An anti-mistaken touch component is provided inside the cavity 8. The telescopic ratchet 10 is retractable, so that the telescopic ratchet 10 cannot be driven to rotate only by the rotating shaft 12 and the ratchet 13. Therefore, the connecting screw 4 is prevented from rotating and causing the valve to open when accidentally touched, thereby improving the safety of the valve when in use and avoiding economic losses caused by accidentally touching.

[0022] Furthermore, the anti-mistouch component includes a displacement rod 14, which is slidably sleeved inside the cavity 8, and the right end of the displacement rod 14 is fixedly connected to a conical block 15, and the left end of the displacement rod 14 is rotatably connected to a control rod 19, and the control rod 19 is movably sleeved inside the cavity 8, and the left end of the control rod 19 movably penetrates the left side surface of the drive box 3, and a mounting groove 16 is provided on the outer surface of the displacement rod 14, and a reset ring 17 is fixedly connected to the inner wall of the cavity 8, and a reset spring 18 is fixedly connected to the left side surface of the reset ring 17, and the left end of the reset spring 18 is fixedly connected to the left inner wall of the mounting groove 16, and spring grooves 20 are respectively provided on the left and right inner walls of the telescopic slot 9, and the left and right side surfaces of the push rod 11 are respectively fixedly connected to limit blocks 21, and the two limit blocks 21 are respectively connected to two springs The spring groove 20 is slidably connected, and the lower surfaces of the two limit blocks 21 are respectively fixedly connected with the second springs 22, and the lower ends of the two second springs 22 are respectively fixedly connected with the bottom walls of the two telescopic grooves 9. The right end of the rotating shaft 12 rotates to penetrate the right side surface of the driving box 3, and the right end of the rotating shaft 12 is fixedly connected with the control valve 23. The ratchet 13 is meshed and connected with the telescopic ratchet 10. Through the cooperation of the conical block 15 and the displacement rod 14, when the valve needs to be controlled, the push rod 11 can be restricted by the displacement rod 14, so that it cannot enter the interior of the cavity 8, so that the ratchet 13 can drive the telescopic ratchet 10 to rotate, and then the valve is controlled. At the same time, since the two are in planar contact when closing, the valve can still be operated without the need to control additional content.

[0023] Working principle: When operating the valve, the operating rod 19 can be pushed to make the operating rod 19 synchronously drive the displacement rod 14 to move. When the displacement rod 14 moves, it will synchronously cooperate with the reset ring 17 to compress the reset spring 18, and at the same time drive the conical block 15 to move. After the displacement rod 14 moves, the push rod 11 is pushed out and occupies the movement space, so that the push rod 11 cannot be retracted. At this time, the rotating shaft 12 is driven to rotate by the control valve 23. After the rotating shaft 12 rotates, the ratchet 13 is synchronously driven to rotate. After the ratchet 13 rotates, the telescopic ratchet 10 cannot be retracted synchronously. The return will drive it to rotate synchronously, and then use the worm 6 to drive the worm wheel 24 to rotate, and use the worm wheel 24 to drive the connecting screw 4 to rotate, so as to complete the control of the valve. When the control rod 19 is not pushed to rotate the control valve 23, the ratchet 13 contacts the inclined surface of the telescopic ratchet 10, forcing the telescopic ratchet 10 to retract into the telescopic groove 9, and thus the valve cannot be controlled. When closing the valve, the control valve 23 is rotated in the opposite direction, so that the plane of the ratchet 13 contacts the plane of the telescopic ratchet 10, making the telescopic ratchet 10 unable to retract and also driving the valve to close.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve with double sealing function, comprising a main pipeline (1), characterized in that: The outer surface of the main pipeline (1) is fixedly connected to a connecting pipe (2), the upper end of the connecting pipe (2) is fixedly connected to a driving box (3), a connecting screw (4) is arranged inside the connecting pipe (2), a through slot (5) extending from the lower surface of the driving box (3) is provided on the bottom wall, the upper end of the connecting screw (4) extends into the driving box (3) through the through slot (5), the outer surface of the connecting screw (4) is sleeved with a worm gear (24), the inner wall of the driving box (3) is rotatably connected to a worm (6), the worm gear (24) is meshingly connected to the worm (6), and the outer surface of the worm (6) is sleeved with a mounting A sleeve (7) is provided with a cavity (8) inside the worm (6), a telescopic groove (9) extending into the cavity (8) is provided on the outer surface of the mounting sleeve (7), a telescopic ratchet (10) is slidably connected inside the telescopic groove (9), a push rod (11) is fixedly connected to a surface of a side of the telescopic ratchet (10) close to the cavity (8), a rotating sleeve on the inner wall of the drive box (3) is provided with a rotating shaft (12), the left end of the rotating shaft (12) rotates and penetrates into the interior of the drive box (3), the left end of the rotating shaft (12) is fixedly connected to a ratchet (13), and an anti-mistaken touch component is arranged inside the cavity (8).

2. A valve with double sealing function according to claim 1, characterized in that: The anti-mistaken-touch component comprises a displacement rod (14), the displacement rod (14) is slidably sleeved inside the cavity (8), the right end of the displacement rod (14) is fixedly connected to a conical block (15), the left end of the displacement rod (14) is rotatably connected to a control rod (19), the control rod (19) is movably sleeved inside the cavity (8), and the left end of the control rod (19) movably penetrates the left side surface of the drive box (3).

3. A valve with double sealing function according to claim 2, characterized in that: The outer surface of the displacement rod (14) is provided with a mounting groove (16), the inner wall of the cavity (8) is fixedly connected to a reset ring (17), the left side surface of the reset ring (17) is fixedly connected to a reset spring (18), and the left end of the reset spring (18) is fixedly connected to the left inner wall of the mounting groove (16).

4. A valve with double sealing function according to claim 1, characterized in that: The inner walls on the left and right sides of the telescopic slot (9) are respectively provided with spring slots (20), and the left and right side surfaces of the push rod (11) are respectively fixedly connected to limit blocks (21), and the two limit blocks (21) are respectively slidably connected to the two spring slots (20).

5. A valve with double sealing function according to claim 4, characterized in that: The lower surfaces of the two limit blocks (21) are respectively fixedly connected with second springs (22).

6. A valve with double sealing function according to claim 5, characterized in that: The lower ends of the two second springs (22) are respectively fixedly connected to the bottom walls of the two telescopic slots (9).

7. The valve with double sealing function according to claim 1, characterized in that: The right end of the rotating shaft (12) rotates and passes through the right side surface of the driving box (3), and the right end of the rotating shaft (12) is fixedly connected to a control valve (23).

8. The valve with double sealing function according to claim 1, characterized in that: The ratchet wheel (13) is meshingly connected with the telescopic ratchet teeth (10).

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