Novel stop valve

Abstract

The utility model relates to the field of pipeline systems, and discloses a novel stop valve which comprises a valve body, the lower surface of the valve body penetrates through and is fixedly connected with a water outlet pipe, the bottom end of the outer wall of the water outlet pipe is in threaded connection with a protective sleeve, a sealing mechanism is arranged in the water outlet pipe, and the sealing mechanism comprises a sealing assembly and a fixing assembly. The sealing assembly comprises a round block, the upper surface of the round block is fixedly connected with a screwed plug sealing section, the upper surface of the screwed plug sealing section is fixedly connected with a screwed plug mounting section, the outer wall of the screwed plug sealing section is fixedly connected with a rubber ring, and an annular groove is formed in the inner wall of the water outlet pipe. According to the utility model, the water outlet pipe is additionally arranged at the bottom of the valve body, so that water can be conveniently discharged from a pipeline system when a boiler is shut down in winter, water residue can be avoided, the influence of freezing on a subsequent pipeline is effectively avoided, and the water outlet pipe can be effectively sealed under the matching of the sealing mechanism, so that the normal use of the device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipeline systems, and in particular to a novel shut-off valve. Background Technology

[0002] In industrial production, municipal facilities, and pipeline systems of various buildings, gate valves play a crucial role as a commonly used control component. However, existing gate valves have revealed many defects and shortcomings in practical applications, especially under specific environments and working conditions.

[0003] In northern regions, the winter climate is cold. During the shutdown of heating and other systems, it is necessary to drain water from the pipeline system to prevent the water from freezing and expanding, which could damage the pipes and equipment.

[0004] However, traditional gate valves mostly adopt a bottom-inlet, top-outlet structure, which makes it difficult to drain the system water below the centerline of the pipeline and valve. The residual water freezes in low-temperature environments. When the pipeline resumes water supply, the ice not only affects the water flow and reduces the system's operating efficiency, but also easily jams the valve, causing it to not close tightly or be difficult to open, and may even block the pipeline, resulting in valve damage.

[0005] Therefore, a new type of shut-off valve is proposed to solve the above problems. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a novel shut-off valve, which aims to solve the problems of difficulty in venting water from pipeline systems, easy damage to valves due to icing, and impact on operation in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a novel shut-off valve, comprising a valve body, wherein a water outlet pipe is connected through and fixedly connected to the lower surface of the valve body, a protective sleeve is threadedly connected to the bottom end of the outer wall of the water outlet pipe, a sealing mechanism is provided inside the water outlet pipe, the sealing mechanism includes a sealing component and a fixing component, the sealing component includes a circular block, a threaded plug sealing section is fixedly connected to the upper surface of the circular block, a threaded plug installation section is fixedly connected to the upper surface of the threaded plug sealing section, a rubber ring is fixedly connected to the outer wall of the threaded plug sealing section, an annular groove is formed on the inner wall of the water outlet pipe, and a horn block is fixedly connected to the lower surface of the circular block.

[0008] As a further description of the above technical solution:

[0009] The plug installation section is threaded through and connected to the lower surface of the water outlet pipe, and the rubber ring is inserted into the inner wall of the annular groove.

[0010] As a further description of the above technical solution:

[0011] The protective sleeve is fitted onto the outer wall of the round block and the horn block, and the inner wall of the bottom end of the protective sleeve is in contact with the lower surface of the horn block.

[0012] As a further description of the above technical solution:

[0013] The fixing component includes a pressure block, one end of a compression spring is fixedly connected to the inner wall on the right side of the circular block, the other end of the compression spring is fixedly connected to a slider, a slot is opened on the lower surface of the water outlet pipe, the slot is annular, a second sealing ring is fixedly connected to the inner ring of the inner wall of the slot, and a first sealing ring is fixedly connected to the upper surface of the circular block.

[0014] As a further description of the above technical solution:

[0015] The slider passes through and is slidably connected to the upper surface of the circular block, and the upper surface of the slider is flush with the upper surface of the circular block.

[0016] As a further description of the above technical solution:

[0017] The pressure block is inserted into the inner wall of the slot, the left end of the upper surface of the pressure block is set as a slope, and the right surface of the pressure block is set as an arc surface.

[0018] As a further description of the above technical solution:

[0019] The lower surface of the pressure block and the upper surface of the slider are fixedly connected.

[0020] As a further description of the above technical solution:

[0021] The first sealing ring is inserted into the inner wall of the slot, and the inner wall of the first sealing ring and the outer wall of the second sealing ring are in contact.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by adding a water outlet pipe at the bottom of the valve body, it is convenient to drain water from the pipeline system when the boiler is shut down in winter, and water residue can be avoided, effectively preventing the impact of freezing on subsequent pipelines. In addition, with the cooperation of the sealing mechanism, the water outlet pipe can be effectively sealed to ensure the normal use of the device.

[0024] 2. In this utility model, through the cooperation of the sealing mechanism, the plug sealing section and the rubber ring cooperate with the annular groove. During use, the rubber ring will be inserted into the annular groove to form the first seal. When the installation is completed, the pressure block will press the sealing ring one so that its inner wall and the outer wall of the sealing ring two are tightly attached to form the second seal, thus achieving double sealing, effectively preventing leakage and ensuring reliable valve operation. Attached Figure Description

[0025] Figure 1This is a front view of the three-dimensional structure of the overall device in this utility model;

[0026] Figure 2 This is a three-dimensional cross-sectional view of the valve body in this utility model;

[0027] Figure 3 This is a three-dimensional structural breakdown diagram of the water outlet pipe, protective sleeve, and plug installation section in this utility model;

[0028] Figure 4 This is a three-dimensional cross-sectional diagram showing the structure of the water outlet pipe, protective sleeve, and circular block in this utility model.

[0029] Figure 5 This is a three-dimensional cross-sectional diagram showing the structure of the water outlet pipe, the round block, the threaded plug sealing section, and the threaded plug installation section in this utility model.

[0030] Figure 6 This is a three-dimensional cross-sectional view of the circular block in this utility model;

[0031] Figure 7 In this utility model Figure 5 A magnified schematic diagram of the three-dimensional structure of part A.

[0032] Legend:

[0033] 1. Valve body; 2. Outlet pipe; 3. Protective sleeve; 41. Round block; 42. Plug sealing section; 43. Plug installation section; 44. Rubber ring; 45. Squeegee; 401. Annular groove; 51. Compression spring; 52. Slider; 53. Pressure block; 54. Sealing ring one; 55. Sealing ring two; 501. Slot. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figure 1 - Figure 3The present invention provides an embodiment of a novel shut-off valve, comprising a valve body 1, which is a shut-off valve and is existing technology that can be implemented by those skilled in the art. As it is existing technology, it will not be described in detail in this case. A water outlet pipe 2 is connected through and fixedly connected to the lower surface of the valve body 1. When the valve body 1 is used in cold regions and is not in use, water needs to be discharged from the water outlet pipe 2 to prevent the valve body 1 from freezing inside and causing damage. The water outlet pipe 2 is installed at the lowest point of the bottom of the valve body 1. A protective sleeve 3 is threaded to the bottom end of the outer wall of the water outlet pipe 2. The protective sleeve 3 can play a role in reinforcement and protection. A sealing mechanism is provided inside the water outlet pipe 2. The sealing mechanism includes a sealing component and a fixing component.

[0036] Reference Figure 3 , Figure 5 , Figure 7 The sealing assembly includes a round block 41, with a threaded plug sealing section 42 fixedly connected to the upper surface of the round block 41. A threaded plug installation section 43 is fixedly connected to the upper surface of the threaded plug sealing section 42. The threaded plug sealing section 42 and the threaded plug installation section 43 together form a threaded plug. A rubber ring 44 is fixedly connected to the outer wall of the threaded plug sealing section 42. An annular groove 401 is provided on the inner wall of the water outlet pipe 2. The rubber ring 44 and the annular groove 401 fit together. A small inclined surface is provided in the lower part of the annular groove 401 on the inner wall of the water outlet pipe 2 to ensure that the rubber ring 44 has a deformation range. A horn block 45 is fixedly connected to the lower surface of the round block 41. The horn block 45 is easy to pinch and facilitates the installation of the round block 41 and the threaded plug.

[0037] Reference Figure 3 , Figure 5 , Figure 7 The plug installation section 43 is threaded through and connected to the lower surface of the outlet pipe 2. The rubber ring 44 is inserted into the inner wall of the annular groove 401 to maintain a seal. The protective sleeve 3 is fitted onto the outer wall of the round block 41 and the horn block 45. The inner wall of the bottom end of the protective sleeve 3 is in contact with the lower surface of the horn block 45 to prevent the horn block 45 from loosening.

[0038] Reference Figure 3 , Figure 4 , Figure 6 The fixing component includes a pressure block 53. One end of a compression spring 51 is fixedly connected to the inner wall on the right side of the circular block 41. The other end of the compression spring 51 is fixedly connected to a slider 52. Multiple sets of pressure blocks 53, compression springs 51 and sliders 52 are provided, arranged in a ring array with the center of the circular block 41 as the origin. A slot 501 is opened on the lower surface of the water outlet pipe 2. The slot 501 is opened in a ring shape. A second sealing ring 55 is fixedly connected to the inner ring of the inner wall of the slot 501. A first sealing ring 54 is fixedly connected to the upper surface of the circular block 41. The first sealing ring 54 and the second sealing ring 55 fit together.

[0039] Reference Figure 3 , Figure 4 , Figure 6 The slider 52 is slidably connected to the upper surface of the circular block 41. The upper surface of the slider 52 is flush with the upper surface of the circular block 41. The pressure block 53 is inserted into the inner wall of the slot 501. The left end of the upper surface of the pressure block 53 is set as an inclined surface. During the insertion process, the inclined surface of the pressure block 53 will be squeezed by the slot 501, causing the pressure block 53 to move towards the center of the circular block 41 and squeeze the sealing ring 1 54. Although the multiple sets of pressure blocks 53 cannot contact every position of the outer wall of the sealing ring 1 54, they can press the inner wall of the sealing ring 1 54 and the outer wall of the sealing ring 2 55 to fit together. The right surface of the pressure block 53 is set as an arc surface. The lower surface of the pressure block 53 is fixedly connected to the upper surface of the slider 52. The pressure block 53 and the slider 52 will move synchronously. When the slider 52 moves towards the center of the circular block 41, it will squeeze the compression spring 51 to generate a reaction force. The sealing ring 1 54 is inserted into the inner wall of the slot 501. The inner wall of the sealing ring 1 54 and the outer wall of the sealing ring 2 55 fit together.

[0040] Working principle: When the device is in use, if it is necessary to drain the water remaining in the valve body 1, first unscrew the protective sleeve 3 to release the obstruction of the round block 41 and the horn block 45. Then rotate the horn block 45 in the opposite direction to drive the round block 41, the plug sealing section 42, and the plug installation section 43 to reverse, so that the rubber ring 44 is squeezed by the annular groove 401 and deformed. Gradually, the rubber ring 44 will separate from the annular groove 401. When the plug installation section 43 is unscrewed from the water outlet pipe 2, the water can be discharged.

[0041] After the water is drained, align the plug installation section 43 with the opening on the lower surface of the outlet pipe 2 and screw on the plug installation section 43. During the tightening process, the sealing ring 54 and the pressure block 53 will be inserted into the slot 501, and the inclined surface of the pressure block 53 will be squeezed. Multiple pressure blocks 53 will move towards the center of the circular block 41, pressing the sealing ring 54 so that it is tightly pressed against the sealing ring 55 to maintain a seal. The rubber ring 44 will also gradually be inserted into the annular groove 401 to form a seal. With the cooperation of the sealing ring 54 and the sealing ring 55, the rubber ring 44 and the annular groove 401, a double seal can be formed, which can avoid the problem of the rubber ring 44 deforming and loosening, affecting the sealing effect. Moreover, the sealing ring 54 is pressed by the pressure block 53, so it can continuously maintain the seal.

[0042] Finally, tighten the protective sleeve 3.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of globe valve comprising a valve body (1), characterized in that: The lower surface of the valve body (1) is connected with a water outlet pipe (2) penetratingly and fixedly, the bottom end of the outer wall of the water outlet pipe (2) is connected with a protective sleeve (3) threadedly, the inside of the water outlet pipe (2) is provided with a sealing mechanism, the sealing mechanism comprises a sealing assembly and a fixing assembly; The sealing assembly comprises a round block (41), the upper surface of the round block (41) is fixedly connected with a plug sealing section (42), the upper surface of the plug sealing section (42) is fixedly connected with a plug mounting section (43), the outer wall of the plug sealing section (42) is fixedly connected with a rubber ring (44), the inner wall of the water outlet pipe (2) is provided with an annular groove (401), the lower surface of the round block (41) is fixedly connected with a horn block (45).

2. A new type of globe valve according to claim 1, characterized in that: The plug mounting section (43) penetrates and is threadedly connected to the lower surface of the water outlet pipe (2), and the rubber ring (44) is inserted into the inner wall of the annular groove (401).

3. A new type of globe valve according to claim 1, characterized in that: The protective sleeve (3) is sleeved on the outer walls of the round block (41) and the horn block (45), and the inner wall of the bottom end of the protective sleeve (3) is in contact with the lower surface of the horn block (45).

4. A new type of globe valve according to claim 1, characterized in that: The fixing assembly comprises a pressing block (53), one end of a compression spring (51) is fixedly connected to the inner wall of the right side of the round block (41), the other end of the compression spring (51) is fixedly connected with a sliding block (52), the lower surface of the water outlet pipe (2) is provided with a slot (501), the slot (501) is annular, a sealing ring two (55) is fixedly connected to the inner wall of the inner ring of the slot (501), and the upper surface of the round block (41) is fixedly connected with a sealing ring one (54).

5. A new type of globe valve according to claim 4, characterized in that: The sliding block (52) penetrates and is slidingly connected to the upper surface of the round block (41), and the upper surface of the sliding block (52) is flush with the upper surface of the round block (41).

6. A new type of globe valve according to claim 4, characterized in that: The pressing block (53) is inserted into the inner wall of the slot (501), the left end of the upper surface of the pressing block (53) is provided as an inclined surface, and the right surface of the pressing block (53) is provided as an arc surface.

7. A new type of globe valve according to claim 4, characterized in that: The lower surface of the pressing block (53) is fixedly connected with the upper surface of the sliding block (52).

8. A new type of globe valve according to claim 4, characterized in that: The sealing ring one (54) is inserted into the inner wall of the slot (501), and the inner wall of the sealing ring one (54) is attached to the outer wall of the sealing ring two (55).

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