Soft sealing gate valve with length-adjustable mounting pipe

Abstract

The utility model relates to the field of soft sealing gate valves, in particular to a soft sealing gate valve with a length-adjustable mounting pipe, which comprises a valve cover, a mounting seat arranged above the valve cover and perpendicular to the valve cover, a valve body arranged below the valve cover, a first sliding groove arranged inside the valve body, and a valve core arranged in the first sliding groove and connected with the first sliding groove in a sliding mode. Connecting pipes perpendicular to the valve body are arranged at the two ends of the valve body, and second sleeves are fixedly arranged on the outer sides of the connecting pipes; when the device is replaced and installed, the two connecting flanges on the two sides of the device are pushed towards the side close to the valve body, then the device is placed between two pipelines to be installed, at the moment, one connecting flange on the device is fixed to the connecting flange on the pipeline through a screw, and the other connecting flange on the pipeline is fixed to the other connecting flange on the pipeline through a screw. And then the other connecting flange is pulled so that the other connecting flange can make contact with the connecting flange of the other pipeline for installation, installation can be conducted without adjusting the length of the installed pipeline, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of soft-sealed gate valves, in particular to a soft-sealed gate valve with an adjustable mounting pipe length. Background Art

[0002] The soft-sealed gate valve is an industrial valve. The opening and closing part of the soft-sealed gate valve is the gate. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate has two sealing surfaces. The most commonly used mode of the gate valve has two sealing surfaces that form a wedge shape, and the wedge angle varies with the valve parameters.

[0003] In the prior art, the water inlet and outlet ends of the soft-sealed gate valve are fixed. When an old soft-sealed gate valve is damaged, it is necessary to select a new soft-sealed gate valve of the same length as the old soft-sealed gate valve for replacement. If there is no soft-sealed gate valve of the same length, it is necessary to match the new soft-sealed gate valve for installation by cutting or lengthening the pipeline, which makes the replacement of the soft-sealed gate valve inconvenient and difficult to achieve adjustable length of the water inlet and outlet ends of the soft-sealed gate valve, thereby improving the practicality of the soft-sealed gate valve.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a soft-sealed gate valve with adjustable mounting pipe length to solve the above-mentioned technical defects. Connecting pipes perpendicular to the valve body are provided at both ends, a second sleeve is fixedly provided on the outside of the connecting pipe, a sliding extension pipe is provided inside the second sleeve, and a connecting flange is fixedly provided on the outside of the extension pipe, thereby solving the problem in the prior art that it is difficult to adjust the length of the inlet and outlet water ends of the soft-sealed gate valve.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A soft-sealed gate valve with adjustable mounting tube length comprises a valve cover, a mounting seat perpendicular to the valve cover is provided above the valve cover, a valve body is provided below the valve cover, a first slide groove is provided inside the valve body, a valve core slidably connected to the valve body is provided in the first slide groove, connecting tubes perpendicular to the valve body are provided at both ends of the valve body, a second sleeve is fixedly provided on the outer side of the connecting tube, a slidably connected extension tube is provided inside the second sleeve, and a connecting flange is fixedly provided on the outer side of the extension tube.

[0008] Preferably, the mounting seat is fixedly connected to the valve cover, a rotatably connected handwheel is provided above the mounting seat, a threaded valve stem is provided inside the handwheel, a fixing block is fixedly provided above the threaded valve stem, and the fixing block is fixedly connected to the handwheel by bolts.

[0009] Preferably, a connecting plate is fixedly provided on the upper side of the valve body by welding, a second rubber sealing ring is placed between the connecting plate and the valve cover, and the connecting plate and the lower end of the valve cover are fixedly connected by bolts.

[0010] Preferably, a first rubber sealing ring is fixedly connected to the outer side of the valve core, a first sleeve is fixedly provided above the valve core, a threaded hole is provided inside the first sleeve, and the threaded hole is threadedly connected to the threaded valve stem.

[0011] Preferably, one end of the connecting pipe is fixedly connected to the valve body, the connecting pipes are communicated with the interior of the first slide groove, four axially distributed second slide grooves are provided inside the second sleeve, and a mounting groove is provided inside the extension pipe.

[0012] Preferably, an O-ring is placed inside the mounting groove, and four axially distributed sliders are provided on the outer side of the extension tube close to one end of the connecting tube, and the sliders are fixedly connected to the extension tube. The sliders are located inside the second slide groove and are slidably connected to the second slide groove.

[0013] The beneficial effects of the utility model are as follows:

[0014] When the utility model is replaced and installed, the two connecting flanges on both sides of the device are pushed toward the side close to the valve body, and then the device is placed between the two pipes to be installed so that the connecting flanges coincide with the connecting flanges on the pipes. At this time, one of the connecting flanges on the device is first fixed to the connecting flange on the pipe by screws, and then the other connecting flange is pulled so that the other connecting flange contacts the connecting flange of the other pipe, and then bolts are used to fix and install it, so that the installation process of the device is relatively simple, and it can be installed without adjusting the length of the installed pipe, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings;

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the connection structure of the valve cover in the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the hand wheel and the valve core in the utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure of the valve body in the utility model;

[0020] Figure 5 It is a schematic diagram of the connection structure of the connecting flange in the utility model.

[0021] Legend: 1. Valve cover; 11. Mounting seat; 12. Handwheel; 13. Threaded valve stem; 14. Fixing block; 15. Valve core; 16. First sleeve; 17. Threaded hole; 18. First rubber sealing ring; 19. Valve body; 191. First slide groove; 20. Connecting plate; 21. Second rubber sealing ring; 22. Connecting pipe; 23. Second sleeve; 24. Second slide groove; 25. Connecting flange; 26. Extension pipe; 27. Slider; 28. Mounting groove; 29. ​​O-ring. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1:

[0024] See also Figure 1 - Figure 5 As shown, the utility model is a soft-sealed gate valve with adjustable mounting tube length, comprising a valve cover 1, a mounting seat 11 perpendicular thereto is provided above the valve cover 1, the mounting seat 11 is fixedly connected to the valve cover 1, a rotatably connected hand wheel 12 is provided above the mounting seat 11, a threaded valve stem 13 is provided inside the hand wheel 12, a fixing block 14 is fixedly provided above the threaded valve stem 13, and the fixing block 14 is fixedly connected to the hand wheel 12 by bolts.

[0025] A valve body 19 is also provided below the valve cover 1, and a connecting plate 20 is fixedly provided above the valve body 19 by welding. A second rubber sealing ring 21 is placed between the connecting plate 20 and the valve cover 1. The connecting plate 20 is fixedly connected to the lower end of the valve cover 1 by bolts. The second rubber sealing ring 21 is used to improve the sealing performance when the valve cover 1 is connected to the valve body 19.

[0026] A first slide groove 191 is further provided inside the valve body 19, and a valve core 15 slidably connected thereto is provided inside the first slide groove 191, a first rubber sealing ring 18 fixedly connected thereto is provided on the outer side of the valve core 15, a first sleeve 16 is fixedly provided above the valve core 15, a threaded hole 17 is provided inside the first sleeve 16, and the threaded hole 17 is threadedly connected to the threaded valve stem 13. When the hand wheel 12 is turned, the threaded valve stem 13 starts to rotate, and the threaded valve stem 13 rotates, driving the first sleeve 16 to move upward or downward.

[0027] Both ends of the valve body 19 are provided with connecting pipes 22 perpendicular thereto, one end of the connecting pipe 22 is fixedly connected to the valve body 19, the connecting pipes 22 are communicated with the inside of the first slide groove 191, and the outer side of the connecting pipe 22 is fixedly provided with a second sleeve 23, and the interior of the second sleeve 23 is provided with four axially distributed second slide grooves 24, and the interior of the second sleeve 23 is also provided with a slidingly connected extension pipe 26, and the interior of the extension pipe 26 is provided with a mounting groove 28, and an O-ring 29 is placed inside the mounting groove 28, and the O-ring 29 is used to improve the sealing performance of the extension pipe 26 when it slides in the second sleeve 23.

[0028] Four axially distributed sliders 27 are provided on the outer side of the extension tube 26 near one end of the connecting tube 22. The sliders 27 are fixedly connected to the extension tube 26. The sliders 27 are located inside the second slide groove 24 and are slidably connected to the second slide groove 24. A connecting flange 25 is also fixedly provided on the outer side of the extension tube 26.

[0029] The working process and principle of the utility model are as follows:

[0030] When in use, first push the two connecting flanges 25 on both sides of the device toward the side close to the valve body 19, and then place the device between the two pipes to be installed so that the connecting flanges 25 coincide with the connecting flanges on the pipes. At this time, first fix one of the connecting flanges 25 on the device to the connecting flange on the pipe with screws, and then pull the other connecting flange 25 so that the other connecting flange 25 contacts the connecting flange of the other pipe, and then use bolts to fix and install it, which makes the device relatively simple to install, thereby improving the practicability of the device.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A soft-sealed gate valve with adjustable mounting pipe length, comprising a valve cover (1), characterized in that: A mounting seat (11) is provided above the valve cover (1) and is perpendicular thereto. A valve body (19) is provided below the valve cover (1). A first slide groove (191) is provided inside the valve body (19). A valve core (15) slidably connected thereto is provided inside the first slide groove (191). Connecting pipes (22) are provided at both ends of the valve body (19) and are perpendicular thereto. A second sleeve (23) is fixedly provided on the outer side of the connecting pipe (22). An extension pipe (26) slidably connected thereto is also provided inside the second sleeve (23). A connecting flange (25) is fixedly provided on the outer side of the extension pipe (26).

2. A soft-sealed gate valve with adjustable mounting pipe length according to claim 1, characterized in that: The mounting seat (11) is fixedly connected to the valve cover (1); a rotatably connected hand wheel (12) is provided above the mounting seat (11); a threaded valve stem (13) is provided inside the hand wheel (12); a fixing block (14) is fixedly provided above the threaded valve stem (13); and the fixing block (14) is fixedly connected to the hand wheel (12) by bolts.

3. The soft-sealed gate valve with adjustable mounting pipe length according to claim 1, characterized in that: A connecting plate (20) is fixedly provided above the valve body (19) by welding, a second rubber sealing ring (21) is placed between the connecting plate (20) and the valve cover (1), and the lower ends of the connecting plate (20) and the valve cover (1) are fixedly connected by bolts.

4. The soft-sealed gate valve with adjustable mounting pipe length according to claim 1, characterized in that: A first rubber sealing ring (18) is fixedly connected to the outer side of the valve core (15), and a first sleeve (16) is fixedly provided above the valve core (15). A threaded hole (17) is provided inside the first sleeve (16), and the threaded hole (17) is threadedly connected to the threaded valve stem (13).

5. The soft-sealed gate valve with adjustable mounting pipe length according to claim 1, characterized in that: One end of the connecting pipe (22) is fixedly connected to the valve body (19), and the connecting pipe (22) is communicated with the interior of the first slide groove (191). Four second slide grooves (24) distributed axially are provided inside the second sleeve (23), and a mounting groove (28) is provided inside the extension pipe (26).

6. The soft-sealed gate valve with adjustable mounting pipe length according to claim 5, characterized in that: An O-ring (29) is placed inside the installation groove (28); four axially distributed sliders (27) are provided on the outer side of the extension tube (26) close to one end of the connecting tube (22); the sliders (27) are fixedly connected to the extension tube (26); the sliders (27) are located inside the second slide groove (24) and are slidably connected to the second slide groove (24).

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