Gate valve

Abstract

The utility model relates to the technical field of gate valves, and discloses a gate valve which comprises a circulation pipeline and a connecting pipeline, the connecting pipeline is arranged on the circulation pipeline, the connecting pipeline and the circulation pipeline form a three-way pipe shape, a valve switch used for opening and closing the circulation pipeline is arranged on the connecting pipeline, and flange plates are arranged at the two ends of the circulation pipeline. The connecting pipeline comprises two abdicating parts and two connecting parts, the connecting parts are arranged between the two abdicating parts, the abdicating parts are arranged between the two connecting parts, the abdicating parts are located on the sides, facing the other connecting part, of the connecting parts, and bolts penetrate through spaces between the abdicating parts and the flange plate; the abdicating part is located on the side, facing the other connecting part, of the connecting part, so that the abdicating part is far away from the flange plate on the side compared with the connecting part, a bolt on the flange plate can smoothly penetrate through the flange plate to be fixed, the gate valve can adapt to a narrower site, and the applicability of the gate valve is improved.

Description

Technical Field

[0001] The present application relates to the technical field of gate valves, and in particular to a gate valve. Background Art

[0002] Gate valve is a common valve, mainly used in pipeline systems, to connect and cut off the medium. Gate valve is generally used to connect different pipelines and seal the connected pipelines.

[0003] In the related technology, the gate valve includes a circulation pipe and a connecting pipe. One end of the connecting pipe is connected to the circulation pipe. The circulation pipe and the connecting pipe form a three-way pipe. Flanges are provided at both ends of the circulation pipe. A valve switch is provided on the connecting pipe. Since a large amount of fluid needs to pass through the circulation pipe and the connecting pipe, the connection between the circulation pipe and the connecting pipe is spherical. Since the connecting pipe requires a certain structural strength, the connecting pipe is cylindrical.

[0004] Since the installation site of some gate valves is relatively narrow, the overall volume of the gate valve is small. When installing the gate valve, since the connecting pipe is cylindrical, the bolts and the connecting pipe abut after passing through the flange, making it difficult for the nut to fix the bolts, making it difficult to install the gate valve in a narrow site, reducing the applicability of the gate valve. Utility Model Content

[0005] In order to improve the applicability of a gate valve, the present application provides a gate valve.

[0006] The present application provides a gate valve, which adopts the following technical solution:

[0007] A gate valve comprises a circulation pipeline and a connecting pipeline, wherein the connecting pipeline is arranged on the circulation pipeline, the connecting pipeline and the circulation pipeline form a three-way pipe shape, the connecting pipeline is provided with a valve switch for opening and closing the circulation pipeline, flanges are provided at both ends of the circulation pipeline, the connecting pipeline comprises two give-way parts and two connecting parts, the connecting part is arranged between the two give-way parts, the give-way part is arranged between the two connecting parts, the give-way part is located on the side of the connecting part facing the other connecting part, and the space between the give-way part and the flange is for bolts to pass through.

[0008] By adopting the above technical solution, the giving way portion is located on the side of the connecting portion facing the other connecting portion, so that the giving way portion is farther away from the flange on one side than the connecting portion, so that the bolts on the flange can smoothly pass through the flange to be fixed, so that the gate valve can adapt to a narrower site, thereby increasing the applicability of the gate valve; at the same time, the overall volume of the gate valve is reduced and the weight is reduced, so that the manufacturing cost of the gate valve is reduced, the economic benefits of the gate valve are improved, and the manufacturer can produce more gate valves.

[0009] Optionally, the connecting portion protrudes in a direction away from the other connecting portion.

[0010] By adopting the above technical solution, since the connecting part protrudes in a direction away from the other connecting part, the connecting part can withstand more pressure, thereby enhancing the structural strength of the connecting part and making the connecting part less susceptible to damage.

[0011] Optionally, a receiving groove for inserting a valve switch is provided on the circulation conduit, a sliding groove is provided on the yielding portion, and the valve switch is located in the sliding groove.

[0012] By adopting the above technical solution, the valve switch is inserted into the receiving groove through the sliding groove, so that the valve switch can smoothly block the circulation pipeline, and the groove wall of the sliding groove and the groove wall of the receiving groove limit the valve switch, further strengthening the fixation of the valve switch and preventing the valve switch from bending in the circulation pipeline.

[0013] Optionally, a limit strip is provided in the connecting pipe, and a limit hole for the limit strip to pass through is opened on the valve switch. When the valve switch is located in the accommodating groove, the limit strip is located in the limit hole.

[0014] By adopting the above technical solution, the limit strip passes through the limit hole, and the hole wall of the limit hole restricts the limit strip, so that the valve switch can move stably in the connecting pipe; at the same time, the limit strip guides the valve switch, so that the valve switch can move smoothly from the connecting pipe to the circulation pipe, thereby realizing the blocking of the circulation pipe by the valve switch.

[0015] Optionally, a stop block is provided on the accommodating groove, and when the valve switch closes the flow pipeline, the valve switch abuts against the stop block.

[0016] By adopting the above technical solution, the stop block abuts against the valve switch, so that the stop block and the valve switch block the receiving groove, so that the fluid can no longer enter the receiving groove, reducing the flow of the fluid in the receiving groove, so that the fluid in the receiving groove will not impact the valve switch, thereby reducing the possibility of the valve switch moving in the receiving groove; the stop block blocks the receiving groove, making it difficult for the fluid in the receiving groove to generate eddy currents when flowing.

[0017] Optionally, two stop blocks are provided, wherein one stop block is located at one side of the accommodating groove, and the other stop block is located at the other side of the accommodating groove, and the stop block extends toward the direction of the other stop block.

[0018] By adopting the above technical solution, the stop block is extended in the direction of another stop block, so that the circulation pipeline does not need to pay attention to the use direction, and the circulation pipeline can be connected to the fluid at any end. When the valve switch blocks the circulation pipeline, the fluid in the receiving groove will not affect the valve switch, so that the valve switch can be stably located in the circulation pipeline.

[0019] Optionally, there is an inclined surface between the surface of the stop block facing the other stop block and the surface of the stop block facing the bottom wall of the accommodating groove.

[0020] By adopting the above technical solution, there is a slope between the surface of the stop block facing the other stop block and the surface of the stop block facing the bottom wall of the receiving groove, so that the fluid can flow along the slope, making it easier for the fluid in the receiving groove to flow out of the receiving groove; at the same time, when the valve switch is opened, the fluid can enter the receiving groove along the slope, allowing the fluid to drive the fluid in the receiving groove to move, so that the fluid in the receiving groove is separated from the receiving groove, avoiding the fluid from staying in the receiving groove for a long time.

[0021] Optionally, a fixing portion is provided in the circulation pipeline, the inner diameter of the fixing portion is smaller than or equal to the inner diameter of the circulation pipeline, and the fixing portion and the connecting pipeline are connected to each other.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By locating the giving part on the side of the connecting part facing the other connecting part, the giving part is farther away from the flange on one side than the connecting part, so that the bolts on the flange can smoothly pass through the flange to be fixed, so that the gate valve can adapt to a narrower site and increase the applicability of the gate valve; at the same time, the overall volume of the gate valve is reduced, so that the manufacturing cost of the gate valve is reduced, the economic benefits of the gate valve are improved, and it is convenient for manufacturers to produce more gate valves.

[0024] 2. Since the connection part protrudes in a direction away from the other connection part, the connection part can withstand more pressure, thereby enhancing the structural strength of the connection part and making the connection part less susceptible to damage.

[0025] 3. The stop block abuts against the valve switch, so that the stop block and the valve switch block the receiving groove, so that the fluid can no longer enter the receiving groove, reducing the flow of the fluid in the receiving groove, so that the fluid in the receiving groove will not impact the valve switch, thereby reducing the possibility of the valve switch moving in the receiving groove; the stop block blocks the receiving groove, making it difficult for the fluid in the receiving groove to generate eddy currents when flowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0027] Figure 2 yes Figure 1 Partial cross-sectional view along line AA;

[0028] Figure 3 yes Figure 1 Sectional view along line BB.

[0029] Figure numerals: 1. circulation pipeline; 11. flange; 111. threaded hole; 12. fixing part; 13. accommodating groove; 131. stop block; 132. inclined surface; 2. connecting pipeline; 21. giving part; 22. connecting part; 23. sliding groove; 24. limiting strip; 3. valve switch; 31. limiting hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] This embodiment discloses a gate valve. Figure 1 A gate valve comprises a circulation pipeline 1 and a connecting pipeline 2, one end of the connecting pipeline 2 is fixedly connected to the circulation pipeline 1, the connecting pipeline 2 and the circulation pipeline 1 are perpendicular to each other, and the connecting pipeline 2 and the circulation pipeline 1 form a three-way pipe shape.

[0032] Reference Figure 2 A valve switch 3 is provided in the connecting pipe 2, and the valve switch 3 can extend into the circulation pipe 1, so that the valve switch 3 blocks the circulation pipe 1. Both ends of the circulation pipe 1 are integrally formed with flanges 11, and the flanges 11 are provided with a plurality of threaded holes 111, which are distributed in an array along the circumference of the flanges 11, and the threaded holes 111 are for bolts to pass through.

[0033] Reference Figure 2 , a fixing portion 12 is provided in the circulation pipeline 1, and the fixing portion 12 extends along the length direction of the circulation pipeline 1. The inner diameter of the fixing portion 12 is smaller than the inner diameter of the circulation pipeline 1, and the inner diameter of the fixing portion 12 meets the size standard in the pipeline. In other embodiments, the inner diameter of the fixing portion 12 can be equal to the inner diameter of the circulation pipeline 1. At this time, the fixing portion 12 is connected to the connecting pipeline 2, that is, the valve switch 3 can extend into the fixing portion 12 to block the circulation pipeline 1.

[0034] Reference Figure 3 The connecting pipe 2 includes two ditching portions 21 and two connecting portions 22, and the two ditching portions 21 and the two connecting portions 22 are fixedly connected to the fixing portion 12. The ditching portion 21 is located between the two connecting portions 22, and the connecting portion 22 is located between the two ditching portions 21. The ditching portion 21 and the connecting portion 22 both extend in a direction perpendicular to the length of the flow pipe 1, and the connecting portion 22 protrudes toward the direction of the other connecting portion 22, that is, the connecting portion 22 is in an arc shape.

[0035] Reference Figure 2 and Figure 3 The surface of the yielding portion 21 facing the flange 11 is located on the side of the connecting portion 22 facing the other connecting portion 22, so that the curvature of the connecting portion 22 becomes smaller, so that there is more space for the bolt to be inserted into the flange 11. A sliding groove 23 for the valve switch 3 to slide is provided on the inner surface of the yielding portion 21, and the sliding groove 23 extends along the length direction of the yielding portion 21.

[0036] Reference Figure 2 and Figure 3 A limit strip 24 is integrally formed on the groove wall of the sliding groove 23, and the limit strip 24 extends along the length direction of the yielding portion 21. A limit hole 31 is provided on the surface of the valve switch 3 for the limit strip 24 to be inserted, and two limit holes 31 are provided, and the limit holes 31 extend along the length direction of the valve switch 3. The valve switch 3 can slide into the fixing portion 12 along the limit strip 24, so that the valve switch 3 blocks the flow pipe 1.

[0037] Reference Figure 2 The inner wall of the fixing portion 12 is provided with a receiving groove 13 for inserting the valve switch 3, and the receiving groove 13 extends along the circumference of the circulation pipeline 1. Two stop blocks 131 are integrally formed on the groove wall of the receiving groove 13, and the two stop blocks 131 extend along the circumference of the circulation pipeline 1. One of the stop blocks 131 is located on the side of the receiving groove 13 facing the flange 11, and the other stop block 131 is located on the side of the receiving groove 13 facing the other flange 11. When the valve switch 3 blocks the circulation pipeline 1, one side of the valve switch 3 abuts against one of the stop blocks 131, and the other side of the valve switch 3 abuts against the other stop block 131.

[0038] Reference Figure 2 There is an inclined surface 132 between the surface of the stop block 131 facing the bottom wall of the receiving groove 13 and the surface of the stop block 131 facing the other stop block 131 , and the fluid can flow out of the receiving groove 13 along the inclined surface 132 .

[0039] The implementation principle of a gate valve in an embodiment of the present application is as follows: a bolt passes through a threaded hole 111 , and at this time, the connecting pipe 2 makes way for the bolt to facilitate the connection between the nut and the bolt.

[0040] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A gate valve, comprising a circulation pipeline (1) and a connecting pipeline (2), wherein the connecting pipeline (2) is arranged on the circulation pipeline (1), the connecting pipeline (2) and the circulation pipeline (1) form a three-way pipe shape, the connecting pipeline (2) is provided with a valve switch (3) for opening and closing the circulation pipeline (1), and flanges (11) are provided at both ends of the circulation pipeline (1), characterized in that: The connecting pipe (2) comprises two paving portions (21) and two connecting portions (22); the connecting portion (22) is arranged between the two paving portions (21); the paving portion (21) is arranged between the two connecting portions (22); the paving portion (21) is located on a side of the connecting portion (22) facing the other connecting portion (22); and the space between the paving portion (21) and the flange (11) is for bolts to pass through.

2. A gate valve according to claim 1, characterized in that: The connecting portion (22) protrudes in a direction away from the other connecting portion (22).

3. A gate valve according to claim 1, characterized in that: The circulation pipe (1) is provided with a receiving groove (13) for inserting the valve switch (3), the yielding portion (21) is provided with a sliding groove (23), and the valve switch (3) is located in the sliding groove (23).

4. A gate valve according to claim 3, characterized in that: A limit strip (24) is provided in the connecting pipe (2), and a limit hole (31) is provided on the valve switch (3) for the limit strip (24) to pass through. When the valve switch (3) is located in the accommodating groove (13), the limit strip (24) is located in the limit hole (31).

5. A gate valve according to claim 3, characterized in that: A stop block (131) is provided on the containing groove (13); when the valve switch (3) closes the flow pipe (1), the valve switch (3) abuts against the stop block (131).

6. A gate valve according to claim 5, characterized in that: Two stop blocks (131) are provided, one of which is located on one side of the receiving groove (13), and the other stop block (131) is located on the other side of the receiving groove (13), and the stop block (131) extends in the direction of the other stop block (131).

7. A gate valve according to claim 6, characterized in that: An inclined surface (132) is provided between the surface of the stop block (131) facing the other stop block (131) and the surface of the stop block (131) facing the bottom wall of the accommodating groove (13).

8. A gate valve according to claim 1, characterized in that: A fixing portion (12) is provided in the circulation pipeline (1), the inner diameter of the fixing portion (12) is smaller than or equal to the inner diameter of the circulation pipeline (1), and the fixing portion (12) and the connecting pipeline (2) are in communication with each other.

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