Lifting type gas stop valve

Abstract

The utility model discloses a lifting type gas stop valve which comprises a main body unit, the main body unit comprises a valve body, flanges are fixedly connected to the two ends of the valve body, and a vent hole and a moving groove are formed in the valve body. The handle is held manually, then the handle is pulled to enable the rotating seat to rotate in the connecting shell, under the sliding limiting action of the limiting strip and the limiting groove, the threaded rod in threaded connection with the rotating seat can drive the valve element rod to slide up and down in the moving groove, and then alignment and communication of the through hole and the vent hole can be controlled; a notch for retaining particles is not formed between the vent hole and the through hole, so that the vertical movement of the valve core rod is influenced, and the sealing performance is effectively improved.

Description

Technical Field

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

[0002] The lift type gas stop valve is a commonly used fluid control device, which is mainly used to cut off or connect the gas flow in the pipeline. The working principle of this type of stop valve is to control the flow of the medium by lifting the valve disc to realize the opening and closing of the medium. In the industrial production process, many equipment will produce waste gas, which needs to be treated before it can be discharged. The lift type gas stop valve can be used to control the flow of waste gas and ensure the stability and safety of waste gas emissions during the treatment process.

[0003] The existing patent number CN220523328U discloses a lifting gas stop valve. The lifting gas stop valve includes: a valve body; an air inlet, which is provided on the valve body; an air outlet, which is provided on the valve body; a through port, which is provided on the valve body and communicates with the air inlet and the air outlet; a limit groove, which is provided on the bottom inner wall of the through port; a through hole, which is provided on the valve body and communicates with the through port; two flanges, which are both provided on the valve body and are respectively adapted to the air inlet and the air outlet; a valve stem, which is provided in the through hole, and the top end of the valve stem extends to the top of the valve body and is fixedly mounted with a hand wheel. The lifting gas stop valve provided by the utility model is simple to operate, not only has a good sealing effect, but also facilitates the opening and closing of the channel, and can also improve the adaptability of the equipment.

[0004] In the prior art, the sealing plug needs to be lowered into the limit groove to complete the sealing closure. However, during exhaust gas treatment, impurities carried by the exhaust gas will be retained and accumulated in the limit groove during a long period of flow, which will cause the sealing plug to be unable to enter the limit groove, making the valve unable to be sealed and closed. Utility Model Content

[0005] 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 specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the problems existing in the above-mentioned existing lifting type gas stop valve, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a lifting type gas stop valve, which is designed to solve the problem that "in the prior art, the sealing plug needs to be lowered into the limit groove to complete the sealing closure, but during the exhaust gas treatment, the impurities carried by the exhaust gas will be retained and accumulated in the limit groove during the long-term flow process, which will cause the sealing plug to be unable to enter the limit groove, and the valve cannot be sealed and closed."

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A lifting gas stop valve, comprising:

[0010] The main unit comprises a valve body, both ends of which are fixedly connected with flanges, and a vent hole and a moving groove are provided inside the valve body;

[0011] The lifting unit includes a connecting shell detachably connected to the upper surface of the valve body, the connecting shell is rotatably connected to a rotating seat inside, and the rotating seat is threadedly connected to a threaded rod inside, the lower end of the threaded rod is fixedly connected to a valve core rod, and a through hole is opened inside the valve core rod, the valve core rod is slidably connected to the inner wall surface of the movable groove, the upper end of the threaded rod is fixedly connected to a fixed block, and a protective component is arranged on the upper side of the fixed block.

[0012] As a preferred solution of the lift type gas stop valve described in the utility model, the opening size of the through hole is larger than the opening size of the vent hole, and the opening position of the through hole is lower than the middle position of the valve core rod.

[0013] As a preferred solution of the lift type gas stop valve described in the utility model, wherein: both sides of the valve core rod are fixedly connected to limit strips, and the inner wall of the movable groove is provided with two groups of limit grooves matching with the limit strips.

[0014] As a preferred solution of the lift type gas stop valve described in the utility model, wherein: both sides of the connecting shell are threadedly connected with bolts, and the bolts are fixedly connected to the valve body through threads.

[0015] As a preferred solution of the lift type gas stop valve described in the utility model, wherein: the outer upper end of the rotating seat is fixedly connected with a handle, and the handle is rotatably connected to the upper surface of the valve body.

[0016] As a preferred solution of a lift type gas stop valve described in the utility model, wherein: the protective component includes a protective shell mounted on the outside of the handle, and the lower end of the protective shell is fixedly connected to a magnetic strip, a connecting plate is provided on the lower side of the magnetic strip, and the connecting plate is fixedly connected to the outer surface of the valve body, and the connecting plate is made of metal.

[0017] Beneficial effects of the utility model:

[0018] 1. Manually hold the handle, and then pull the handle to rotate the rotating seat inside the connecting shell. Under the sliding limit action of the limit bar and the limit groove, the threaded rod threadedly connected to the rotating seat can drive the valve core rod to slide up and down inside the moving groove, thereby controlling the alignment and connection between the through hole and the vent hole, so that no notch that causes particles to be trapped is generated between the vent hole and the through hole, thereby affecting the up and down movement of the valve core rod, and effectively improving the sealing performance.

[0019] 2. Through the magnetic connection of the magnetic strip and the connecting plate, the protective shell can be quickly removed from the upper surface, and then the protective shell has a protective effect on the lifting unit, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a lifting type gas stop valve proposed by the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure explosion;

[0023] Figure 3 for Figure 1 A schematic cross-sectional view of the three-dimensional structure;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the lifting unit.

[0025] In the figure: 100, main unit; 101, valve body; 102, flange; 103, vent; 104, movable groove; 200, lifting unit; 201, connecting shell; 202, rotating seat; 203, handle; 204, threaded rod; 205, valve core rod; 206, limit strip; 207, bolt; 208, protective assembly; 208a, protective shell; 208b, magnetic strip; 208c, connecting plate; 209, through hole. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Reference Figure 1-4 The utility model provides a lifting gas stop valve, comprising:

[0031] The main unit 100 includes a valve body 101, both ends of the valve body 101 are fixedly connected with flanges 102, and the valve body 101 is provided with a vent hole 103 and a moving groove 104;

[0032] The lifting unit 200 includes a connecting shell 201 detachably connected to the upper surface of the valve body 101, the interior of the connecting shell 201 is rotatably connected to a rotating seat 202 via a bearing, and the interior of the rotating seat 202 is rotatably connected to a threaded rod 204 via a thread, the lower end of the threaded rod 204 is fixedly connected to a valve core rod 205, and a through hole 209 is provided inside the valve core rod 205, the valve core rod 205 is slidably connected to the inner wall surface of the movable groove 104, the upper end of the threaded rod 204 is fixedly connected to a fixed block, and a protective component 208 is provided on the upper side of the fixed block.

[0033] Among them, the opening size of the through hole 209 is larger than the opening size of the vent hole 103, and the opening position of the through hole 209 is lower than the middle position of the valve core rod 205, which not only enables the through hole 209 and the vent hole 103 to be quickly aligned, but also facilitates the valve core rod 205 to cut off the vent hole 103.

[0034] Furthermore, both sides of the valve core rod 205 are fixedly connected to the limit strips 206, and the inner wall of the movable groove 104 is provided with two sets of limit grooves that cooperate with the limit strips 206, which have a limiting effect, so that the valve core rod 205 will not rotate along with the rotating seat 202. The rotation of the rotating seat 202 can make the valve core rod 205 move up and down.

[0035] Furthermore, both sides of the connecting shell 201 are connected with bolts 207 through threaded rotation, and the bolts 207 are fixedly connected to the valve body 101 through threaded rotation. The threaded rotation bolts 207 can make the connecting shell 201 and the valve body 101 flexibly disassembled, and the side setting can increase the stability of the connection between the valve body 101 and the connecting shell 201.

[0036] Furthermore, the outer upper end of the rotating seat 202 is fixedly connected with a handle 203, and the handle 203 is rotatably connected to the upper surface of the valve body 101, which is convenient for the staff to operate and hold, so that the handle 203 can drive the rotating seat 202 to rotate.

[0037] Furthermore, the protective component 208 includes a protective shell 208a which is sleeved on the outside of the handle 203, and the lower end of the protective shell 208a is fixedly connected to a magnetic strip 208b, a connecting plate 208c is provided on the lower side of the magnetic strip 208b, and the connecting plate 208c is fixedly connected to the outer surface of the valve body 101, and the connecting plate 208c is made of metal. The protective shell 208a can prevent the valve from being affected by the external environment, and at the same time, the protective shell 208a is fixed by the adsorption of the magnetic strip 208b on the connecting plate 208c, which is convenient for disassembly.

[0038] During use, through the magnetic connection between the magnetic strip 208b and the connecting plate 208c, the protective shell 208a is manually pulled so that the protective shell 208a can be quickly removed from the upper surface of 208d, and then the handle 203 is manually grasped and pulled to rotate the rotating seat 202 inside the connecting shell 201. Under the sliding limit action of the limit strip 206 and the limit groove, the threaded rod 204 threadedly connected to the rotating seat 202 can drive the valve core rod 205 to slide up and down inside the movable groove 104, thereby controlling the alignment and connection between the through hole 209 and the vent hole 103.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A lifting gas stop valve, characterized in that: include: The main unit (100) comprises a valve body (101), both ends of the valve body (101) are fixedly connected with flanges (102), and a vent hole (103) and a movable groove (104) are provided inside the valve body (101); The lifting unit (200) comprises a connecting shell (201) detachably connected to the upper surface of the valve body (101); the connecting shell (201) is internally rotatably connected to a rotating seat (202); the internal thread of the rotating seat (202) is connected to a threaded rod (204); the lower end of the threaded rod (204) is fixedly connected to a valve core rod (205); a through hole (209) is provided inside the valve core rod (205); the valve core rod (205) is slidably connected to the inner wall surface of the movable groove (104); the upper end of the threaded rod (204) is fixedly connected to a fixed block; and a protective component (208) is provided on the upper side of the fixed block.

2. A lift type gas stop valve according to claim 1, characterized in that: The opening size of the through hole (209) is larger than the opening size of the vent hole (103), and the opening position of the through hole (209) is lower than the middle position of the valve core rod (205).

3. A lift type gas stop valve according to claim 2, characterized in that: Both sides of the valve core rod (205) are fixedly connected to limit strips (206), and the inner wall of the movable groove (104) is provided with two groups of limit grooves matching with the limit strips (206).

4. A lift type gas stop valve according to claim 3, characterized in that: Bolts (207) are threadedly connected to both sides of the connection shell (201), and the bolts (207) are fixedly connected to the valve body (101) via threads.

5. A lift type gas stop valve according to claim 4, characterized in that: The outer upper end of the rotating seat (202) is fixedly connected to a handle (203), and the handle (203) is rotatably connected to the upper surface of the valve body (101).

6. The lift type gas stop valve according to claim 1, characterized in that: The protective component (208) includes a protective shell (208a) sleeved on the outside of the handle (203), and the lower end of the protective shell (208a) is fixedly connected to a magnetic strip (208b), and a connecting plate (208c) is provided on the lower side of the magnetic strip (208b), and the connecting plate (208c) is fixedly connected to the outer surface of the valve body (101), and the connecting plate (208c) is made of metal.

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