Welded stop valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a welding stop valve which comprises a valve, a movable part, a supporting part, a transmission part and an operation part, the valve comprises a valve body, a connecting pipe and a sliding groove, the connecting pipe is arranged at the upper end of the valve body, and the sliding groove is formed in the bottom of an inner cavity of the connecting pipe; the movable part is arranged on the sliding groove and comprises a sliding column, a screw hole, a valve column and a valve element, the sliding column is connected to the sliding groove, the screw hole is formed in the center of the top of the sliding column, and the bottom of the sliding column is connected with the valve element through the valve column; the threaded rod drives the sliding column to move under thread feeding movement, so that the valve element is driven to move, when the valve element moves, the valve element stably moves up and down without rotating, stability is high, the large gear drives the small gear to rotate, the valve body can be controlled only through a small operation range, operation and use are convenient, the swing arm is prolonged through the sleeve, and operation is more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a welding stop valve. Background Art

[0002] The stop valve, also known as the gate valve, is one of the most widely used valves. It is a forced sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage.

[0003] Patent No. CN202122063870.1 discloses a welded stop valve assembly, including a welded valve body, wherein the left and right ends of the welded valve body are respectively provided with a liquid inlet channel and a liquid discharge channel, and a valve cover assembly is provided above the welded valve body, wherein the valve cover assembly is sealed against the top opening of the welded valve body and is locked by a plurality of locking bolts, and a vertical valve column assembly is provided above the valve cover assembly, wherein the lower end of the vertical valve column assembly extends downward into the valve cavity of the welded valve body, wherein the valve cavity is used to connect the liquid inlet channel and the liquid discharge channel, and a valve core member is installed at the lower end of the vertical valve column assembly in the valve cavity, wherein the valve core member is used to control the opening and closing of the valve cavity. The stop valve assembly can effectively seal and plug with the valve core sleeve through the rotation and lifting of the valve core member, thereby effectively improving the sealing effect and the water pressure resistance sealing effect of the valve.

[0004] The above stop valve has the following problems when in use:

[0005] Although the extended operating steel pipe is more labor-saving during operation, it requires a larger operating range and is not convenient to operate;

[0006] The screw drives the valve core to rise and fall. The screw will rotate during the lifting process, thereby driving the valve core to rotate, affecting the activity stability of the valve core;

[0007] For this reason, the present application proposes a welding stop valve. Utility Model Content

[0008] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0009] In view of the above problems and / or the problems existing in the existing welded stop valves, the utility model is proposed.

[0010] Therefore, the purpose of the utility model is to provide a welded stop valve, the upper end of the valve core of the movable part is connected to the sliding column through the valve column, the sliding column is provided with a screw hole, the lower end of the support part is provided with a transmission part connected with the screw hole, the upper end of the support part is provided with an operating part connected with the transmission part, and the sleeve on the operating part is used as an extension tube, the driving large gear is driven to rotate through the sleeve, the driving large gear is engaged to drive the driven small gear to rotate, the driven small gear synchronously drives the screw to rotate, the screw drives the sliding column to move under the thread feed movement, thereby driving the valve core to move, when the valve core moves, it moves up and down stably without rotating, and has high stability, the large gear drives the small gear to rotate, and only a small operating amplitude is required to complete the control of the valve body, which is convenient for operation and use, and the sleeve extends the swing arm, which is more labor-saving to operate.

[0011] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0012] Welded stop valve, comprising:

[0013] The valve comprises a valve body, a connecting pipe and a slide groove, wherein the connecting pipe is arranged at the upper end of the valve body and the slide groove is arranged at the bottom of the inner cavity of the connecting pipe;

[0014] A movable part is arranged on the slide groove, and the movable part includes a slide column, a screw hole, a valve column and a valve core. The slide column is connected to the slide groove, a screw hole is arranged at the center of the top of the slide column, and the bottom of the slide column is connected to the valve core through the valve column;

[0015] A support portion is arranged on the connecting pipe, the support portion includes an end cover, a bracket and an extension pipe, the bottom of the end cover is connected to the upper end of the connecting pipe, a bracket is arranged at the bottom of the inner cavity of the end cover, and the top side of the end cover is connected to the extension pipe;

[0016] A transmission member is arranged on the bracket, and the transmission member comprises a screw and a driven pinion, the upper end of the screw passes through the bracket to connect with the driven pinion, and the lower end of the screw is connected with the screw hole;

[0017] An operating part is arranged on the extension tube, and the operating part includes a rotating shaft, a driving gear, a rotating wheel, a lever, a sleeve and a support rod. The rotating shaft is connected to the extension tube, a driving gear meshing with a driven pinion is arranged at the lower end of the rotating shaft, a rotating wheel is arranged at the upper end of the rotating shaft, a lever is arranged on the outer wall of the rotating wheel, a sleeve is arranged outside the lever, and a support rod is arranged at the top center of the rotating wheel.

[0018] As a preferred solution of the welding stop valve described in the utility model, the top of the connecting pipe and the bottom of the end cover are provided with flanges corresponding to each other, and the connecting pipe and the end cover are connected through the flange.

[0019] As a preferred solution of the welding stop valve described in the utility model, a sealing gasket is provided at the connection position between the connecting pipe and the end cover.

[0020] As a preferred solution of the welding stop valve described in the utility model, wherein: the slide groove adopts a rectangular groove, and the slide column adopts a rectangular column corresponding to the slide groove.

[0021] As a preferred solution of the welding stop valve described in the utility model, a connecting hole is opened in the center of the bracket, and the upper end of the screw rod is connected to the connecting hole through a bearing.

[0022] As a preferred solution of the welding stop valve described in the utility model, the top and the bottom of the outer wall of the sliding column are both provided with outwardly protruding retaining rings.

[0023] As a preferred solution of the welding stop valve described in the utility model, the driven pinion and the driving gear are mutually meshing bevel gears, and the wheel diameter of the driven pinion is smaller than the wheel diameter of the driving gear.

[0024] As a preferred solution of the welding stop valve described in the utility model, wherein: bearings are provided at both the upper end and the lower end of the inner cavity of the extension tube, and the rotating shaft is connected to the extension tube through the bearings.

[0025] As a preferred solution of the welding stop valve described in the utility model, wherein: the levers are evenly distributed on the outer wall of the rotating wheel, and the outer part of the sleeve is provided with anti-slip convex patterns.

[0026] As a preferred solution of the welding stop valve described in the utility model, a rotating sleeve is arranged outside the support rod.

[0027] Compared with the prior art: the upper end of the valve core of the movable part of the utility model is connected to the sliding column through the valve column, a screw hole is opened on the sliding column, a transmission part connected to the screw hole is arranged at the lower end of the support part, an operating part connected to the transmission part is arranged at the upper end of the support part, and the sleeve on the operating part is used as an extension tube, and the driving large gear is driven to rotate through the sleeve, and the driving large gear is engaged to drive the driven small gear to rotate, and the driven small gear synchronously drives the screw to rotate, and the screw drives the sliding column to move under the thread feed movement, thereby driving the valve core to move. When the valve core moves, it moves up and down stably without rotating, and has high stability. The large gear drives the small gear to rotate, and only a small operating amplitude is required to complete the control of the valve body, which is easy to operate and use. The sleeve extends the swing arm, and the operation is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the shaft side structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0030] Figure 3 This is a schematic diagram of the valve structure of the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the active part of the utility model;

[0032] Figure 5 This is a schematic diagram of the support structure of the utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the operating part of the utility model;

[0034] Figure 7 It is a schematic diagram of the connection structure of the movable part, the supporting part, the transmission part and the operating part of the utility model.

[0035] In the figure: 100 valve, 110 valve body, 120 connecting pipe, 130 slide groove, 200 movable part, 210 slide column, 220 screw hole, 230 valve column, 240 valve core, 300 support part, 310 end cover, 320 bracket, 330 extension pipe, 400 transmission part, 410 screw rod, 420 driven small gear, 500 operating part, 510 rotating shaft, 520 driving large gear, 530 rotating wheel, 540 lever, 550 sleeve, 560 support rod. DETAILED DESCRIPTION

[0036] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other implementation schemes, variations, improvements, equivalent schemes, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0037] Those skilled in the art should understand that, in the disclosure of the present utility, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present utility and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limitations on the utility.

[0038] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0039] See also Figure 1-Figure 7, including: a valve 100, a movable part 200, a supporting part 300, a transmission part 400 and an operating part 500.

[0040] The valve 100 includes a valve body 110, a connecting pipe 120 and a slide groove 130. The connecting pipe 120 is disposed at the upper end of the valve body 110, and the slide groove 130 is disposed at the bottom of the inner cavity of the connecting pipe 120.

[0041] The valve body 110 adopts the welded valve body disclosed in the background art, and the slide groove 130 provides a movable space.

[0042] The movable part 200 is arranged on the slide groove 130, and the movable part 200 includes a slide column 210, a screw hole 220, a valve column 230 and a valve core 240. The slide column 210 is connected to the slide groove 130, and the screw hole 220 is provided at the center of the top of the slide column 210. The bottom of the slide column 210 is connected to the valve core 240 through the valve column 230;

[0043] Among them, the sliding column 210, the screw hole 220, the valve column 230 and the valve core 240 are located on the same axis, the sliding column 210, the valve column 230 and the valve core 240 are fixedly connected, and the movable part 200 slides up and down on the slide groove 130 through the sliding column 210, driving the valve core 240 to move, thereby realizing the control of the valve 100.

[0044] The support part 300 is arranged on the connecting tube 120, and the support part 300 includes an end cover 310, a bracket 320 and an extension tube 330. The bottom of the end cover 310 is connected to the upper end of the connecting tube 120, the bracket 320 is arranged at the bottom of the inner cavity of the end cover 310, and the top side of the end cover 310 is connected to the extension tube 330;

[0045] The end cover 310 is fixedly connected to the upper end of the connecting pipe 120 , and the support 320 and the extension pipe 330 provide support for the transmission member 400 and the operating part 500 .

[0046] The transmission member 400 is disposed on the bracket 320 , and includes a screw rod 410 and a driven pinion 420 . The upper end of the screw rod 410 passes through the bracket 320 and is connected to the driven pinion 420 , and the lower end of the screw rod 410 is connected to the screw hole 220 .

[0047] When the screw rod 410 rotates, the sliding column 210 is driven to move under the action of thread feeding, thereby driving the valve core 240 to move.

[0048] The operating part 500 is arranged on the extension tube 330, and the operating part 500 includes a rotating shaft 510, a driving gear 520, a rotating wheel 530, a lever 540, a sleeve 550 and a support rod 560. The rotating shaft 510 is connected to the extension tube 330, the driving gear 520 meshing with the driven pinion 420 is arranged at the lower end of the rotating shaft 510, the rotating wheel 530 is arranged at the upper end of the rotating shaft 510, the outer wall of the rotating wheel 530 is arranged with a lever 540, the outer side of the lever 540 is sleeved with a sleeve 550, and the support rod 560 is arranged at the top center of the rotating wheel 530;

[0049] Among them, the lever 540 is evenly distributed on the outer wall of the rotating wheel 530, and the outer side of the sleeve 550 is provided with anti-slip convex grooves. The sleeve 550 can be connected to different outer ends of the lever 540 to change the gripping position for easy operation. During operation, the staff holds the support rod 560 with one hand to stabilize the body, and holds the sleeve 550 with the other hand to drive the rotating shaft 510 to rotate, thereby driving the large gear 520 to rotate. The swing arm is extended by the sleeve 550, making the rotation operation more labor-saving.

[0050] The top of the connecting pipe 120 and the bottom of the end cover 310 are provided with corresponding flanges. The connecting pipe 120 and the end cover 310 are connected by the flanges, and the flanges are connected by bolts for later disassembly and assembly.

[0051] A sealing gasket is provided at the connection position between the connecting pipe 120 and the end cover 310 to ensure a sealing effect.

[0052] The slide groove 130 is a rectangular groove, and the slide column 210 is a rectangular column corresponding to the slide groove 130, which plays an anti-rotation role, so that the slide column 210 can perform lifting and lowering activities on the slide groove 130 without rotating.

[0053] A connecting hole is provided at the center of the bracket 320, and the upper end of the screw rod 410 is connected to the connecting hole through a bearing to ensure the stability of the connection.

[0054] The top and bottom of the outer wall of the sliding column 210 are both provided with outwardly protruding retaining rings to play a role in limiting and preventing slipping.

[0055] The driven pinion 420 and the driving gear 520 are bevel gears meshing with each other. The wheel diameter of the driven pinion 420 is smaller than the wheel diameter of the driving gear 520, so that the large gear drives the pinion to increase the speed.

[0056] Bearings are provided at both the upper and lower ends of the inner cavity of the extension tube 330, and the rotating shaft 510 is connected to the extension tube 330 through the bearings to improve the rotation stability.

[0057] A rotating sleeve is provided outside the support rod 560, and the rotating sleeve can rotate outside the support rod 560 to prevent the staff from scratching their hands when they grasp the support rod with force.

[0058] During specific use, the staff member holds the support rod 560 with one hand to stabilize his body, and holds the sleeve 550 with the other hand to drive the rotating shaft 510 to rotate, thereby driving the driving large gear 520 to rotate. The sleeve 550 extends the swing arm, making the rotation operation more labor-saving. The driving large gear 520 engages to drive the driven small gear 420 to rotate, and the driven small gear 420 simultaneously drives the screw 410 to rotate, and drives the sliding column 210 to move under the action of thread feed, thereby driving the valve core 240 to move. The valve core 240 moves up and down stably without rotating, and has high stability. The large gear drives the small gear to rotate at an increased speed. Only a small operating range is required to complete the control of the valve body, which is easy to operate and use. The sleeve 550 serves as an extended swing arm, and the operation is more labor-saving.

[0059] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the implementation methods of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Welded stop valve, characterized in that: include: A valve (100) comprises a valve body (110), a connecting pipe (120) and a slide groove (130), wherein the connecting pipe (120) is arranged at the upper end of the valve body (110), and the slide groove (130) is arranged at the bottom of the inner cavity of the connecting pipe (120); A movable part (200) is arranged on the slide groove (130), and the movable part (200) comprises a slide column (210), a screw hole (220), a valve column (230) and a valve core (240). The slide column (210) is connected to the slide groove (130), a screw hole (220) is provided at the center of the top of the slide column (210), and the bottom of the slide column (210) is connected to the valve core (240) through the valve column (230); A support portion (300) is arranged on the connecting tube (120), the support portion (300) comprising an end cover (310), a bracket (320) and an extension tube (330), the bottom of the end cover (310) is connected to the upper end of the connecting tube (120), the bracket (320) is arranged at the bottom of the inner cavity of the end cover (310), and the top side of the end cover (310) is connected to the extension tube (330); a transmission member (400) disposed on the bracket (320), the transmission member (400) comprising a screw rod (410) and a driven pinion gear (420), the upper end of the screw rod (410) passing through the bracket (320) and connected to the driven pinion gear (420), and the lower end of the screw rod (410) being connected to the screw hole (220); The operating part (500) is arranged on the extension tube (330), and the operating part (500) comprises a rotating shaft (510), a driving gear (520), a rotating wheel (530), a lever (540), a sleeve (550) and a support rod (560). The rotating shaft (510) is connected to the extension tube (330), a driving gear (520) meshing with a driven pinion (420) is arranged at the lower end of the rotating shaft (510), a rotating wheel (530) is arranged at the upper end of the rotating shaft (510), a lever (540) is arranged on the outer wall of the rotating wheel (530), a sleeve (550) is sleeved on the outside of the lever (540), and a support rod (560) is arranged at the top center of the rotating wheel (530).

2. The welding stop valve according to claim 1, characterized in that: The top of the connecting pipe (120) and the bottom of the end cover (310) are provided with flanges corresponding to each other, and the connecting pipe (120) and the end cover (310) are connected via the flanges.

3. The welding stop valve according to claim 2, characterized in that: A sealing gasket is provided at the connection position between the connecting pipe (120) and the end cover (310).

4. The welding stop valve according to claim 1, characterized in that: The slide groove (130) is a rectangular groove, and the slide column (210) is a rectangular column corresponding to the slide groove (130).

5. The welding stop valve according to claim 1, characterized in that: A connecting hole is provided at the center of the bracket (320), and the upper end of the screw rod (410) is connected to the connecting hole via a bearing.

6. The welding stop valve according to claim 1, characterized in that: The top and bottom of the outer wall of the sliding column (210) are both provided with outwardly protruding retaining rings.

7. The welding stop valve according to claim 1, characterized in that: The driven pinion (420) and the driving gear (520) are bevel gears that mesh with each other, and the wheel diameter of the driven pinion (420) is smaller than the wheel diameter of the driving gear (520).

8. The welding stop valve according to claim 1, characterized in that: The upper end and the lower end of the inner cavity of the extension tube (330) are both provided with bearings, and the rotating shaft (510) is connected to the extension tube (330) via the bearings.

9. The welding stop valve according to claim 1, characterized in that: The levers (540) are evenly distributed on the outer wall of the rotating wheel (530), and the outer portion of the sleeve (550) is provided with anti-slip convex patterns.

10. The welding stop valve according to claim 1, characterized in that: The support rod (560) is provided with a rotating sleeve on the outside.

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