Anti-freezing ball valve

Abstract

The utility model discloses an anti-freezing ball valve, which relates to the field of ball valves and comprises a valve seat, a protective sleeve is mounted on the outer wall of the valve seat, a thermal insulation layer is fixedly connected inside the protective sleeve, a wear-resistant layer is fixedly connected to the outer wall of the thermal insulation layer, a first hook-and-loop fastener is fixedly connected to the outer wall of the protective sleeve, and a second hook-and-loop fastener is fixedly connected to the outer wall of the first hook-and-loop fastener. The outer wall of the protective sleeve is fixedly connected with a second hook-and-loop fastener, the protective sleeve wraps the outer wall of the valve seat, the first hook-and-loop fastener is pulled and adheres to the second hook-and-loop fastener, a heat preservation layer is fixedly connected to the interior of the protective sleeve, and the heat preservation layer is made of rubber and plastic sponge, so that the heat preservation and frost resistance of the protective sleeve can be improved; the outer wall of the heat preservation layer is fixedly connected with the wear-resisting layer, so that the protective sleeve is more wear-resisting, the situation that liquid in the ball valve is frozen due to the influence of low temperature can be prevented, the valve rod is rotated, under the action of the spring, the spring block can be clamped into the clamping groove for limiting, and the valve rod is prevented from loosening after being rotated and moved for multiple times.

Description

Technical Field

[0001] The utility model relates to the field of ball valves, in particular to an antifreeze ball valve. Background Art

[0002] A ball valve is a type of valve that can rotate 90 degrees. The plug body is a sphere with a circular through hole or channel passing through its axis. Ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and they occupy a pivotal position in the national economy. At present, ball valves are affected by low outdoor temperatures, and the liquid transported inside the ball valve is easily frozen, causing inconvenience in use. Therefore, an antifreeze ball valve is needed.

[0003] The existing ball valve cannot resist the influence of outdoor low temperature when in use, causing the liquid transported in the ball valve to freeze, and the valve stem of the ball valve is prone to loosening after reciprocating rotation and movement, and it is inconvenient to stably dock and install the connecting pipe. Therefore, an antifreeze ball valve is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an antifreeze ball valve to solve the problems that the existing ball valve cannot resist the influence of outdoor low temperature, the valve stem is easy to loosen after reciprocating rotation and movement, and it is inconvenient to stably connect and install the connecting pipe.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an antifreeze ball valve, comprising a valve seat, the outer wall of the valve seat is installed with a protective sleeve, the interior of the protective sleeve is fixedly connected with an insulation layer, the outer wall of the insulation layer is fixedly connected with a wear-resistant layer, the outer wall of the protective sleeve is fixedly connected with a first Velcro, and the outer wall of the protective sleeve is fixedly connected with a second Velcro.

[0006] A clamping groove is provided inside the valve seat, a valve stem is installed on the top of the valve seat, a receiving groove is provided inside the valve stem, and a spring block is movably connected inside the receiving groove.

[0007] The outer wall of the valve seat is fixedly connected to a connecting pipe, the outer wall of the connecting pipe is fixedly connected to a first flange, one side of the first flange is fixedly connected to an insert block, the outer wall of the first flange is installed with a second flange, a slot is provided inside the second flange, bolts are installed inside the second flange, nuts are installed on the outer wall of the bolts, the inner wall of the second flange is fixedly connected to a delivery pipe, one end of the delivery pipe is fixedly connected to an insert ring, and a sealing strip is sleeved on the outer wall of the insert ring.

[0008] Preferably, the material of the thermal insulation layer is rubber-plastic sponge, and the material of the wear-resistant layer is PVC.

[0009] Preferably, the thermal insulation layer and the wear-resistant layer are tightly fitted, and the first Velcro and the second Velcro are adhesively connected.

[0010] Preferably, the valve stem and the valve seat form a rotating structure, and the spring block is engaged and connected with the valve seat via a slot.

[0011] Preferably, the number of the slots is set to two, and the spring block forms a sliding structure with the valve stem through the receiving slot.

[0012] Preferably, the delivery pipe is snap-connected to the connecting pipe via an insert ring, and the bolt is threadedly connected to the nut.

[0013] Preferably, the insert block is snap-connected to the second flange through a slot, and the insert block is symmetrically arranged with respect to the central axis of the first flange.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is provided with a valve seat, a protective sleeve, a heat-insulating layer, a wear-resistant layer, a first hook and a second hook. The protective sleeve can be installed by wrapping the protective sleeve on the outer wall of the valve seat, pulling the first hook and sticking it to the second hook. The heat-insulating layer is fixedly connected to the inside of the protective sleeve, and the material of the heat-insulating layer is rubber-plastic sponge, so the heat-insulating and anti-freezing performance of the protective sleeve can be improved. The wear-resistant layer is fixedly connected to the outer wall of the heat-insulating layer, and the material of the wear-resistant layer is PVC, so the protective sleeve can be made more wear-resistant, thereby preventing the ball valve from being affected by low temperature and causing the internal liquid to freeze;

[0016] The utility model provides a valve seat, a clamping groove, a valve stem, a receiving groove and a spring block. By rotating the valve stem, the top of the valve seat can squeeze the spring block and store it in the receiving groove. When the valve stem is rotated 90 degrees, the spring block can be clamped in the clamping groove for position limiting under the action of the spring, thereby preventing the valve stem from loosening after multiple rotations and movements, thereby improving the service life of the ball valve.

[0017] The utility model provides a connecting pipe, a first flange, an insert block, a second flange, a slot, bolts, nuts, a delivery pipe and an insert ring. By moving the delivery pipe, the insert ring is inserted into the connecting pipe, the insert block is inserted into the slot, the second flange is docked with the first flange, the bolts are passed through the second flange and the first flange, and the nuts are rotated to limit them, so that the delivery pipe can be easily docked and installed, thereby improving the stability of the pipeline connection installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the protective cover of the utility model;

[0020] Figure 3 This is a three-dimensional cross-sectional view of the protective cover of the utility model;

[0021] Figure 4 This is a disassembled diagram of the valve stem structure of the utility model;

[0022] Figure 5 It is a stereoscopic diagram of the delivery pipe of the utility model.

[0023] In the figure: 1. valve seat; 2. protective cover; 3. insulation layer; 4. wear-resistant layer; 5. first hook and loop; 6. second hook and loop; 7. slot; 8. valve stem; 9. storage slot; 10. spring block; 11. connecting pipe; 12. first flange; 13. plug block; 14. second flange; 15. slot; 16. bolt; 17. nut; 18. delivery pipe; 19. plug ring; 20. sealing strip. DETAILED DESCRIPTION

[0024] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0025] The following describes an embodiment of the utility model based on its overall structure.

[0026] See also Figure 1-5 A freeze-resistant ball valve comprises a valve seat 1, a protective sleeve 2 is installed on the outer wall of the valve seat 1, an insulation layer 3 is fixedly connected inside the protective sleeve 2, a wear-resistant layer 4 is fixedly connected to the outer wall of the insulation layer 3, a first Velcro 5 is fixedly connected to the outer wall of the protective sleeve 2, and a second Velcro 6 is fixedly connected to the outer wall of the protective sleeve 2. The insulation layer 3 is made of rubber and plastic sponge, and the wear-resistant layer 4 is made of PVC. The insulation layer 3 fits tightly with the wear-resistant layer 4, and the first Velcro 5 is adhesively connected to the second Velcro 6, which can prevent the ball valve from freezing due to low temperature.

[0027] See also Figure 1-5 , an antifreeze ball valve, a valve seat 1 is provided with a card slot 7, a valve stem 8 is installed on the top of the valve seat 1, a storage groove 9 is provided inside the valve stem 8, a spring block 10 is movably connected inside the storage groove 9, the valve stem 8 and the valve seat 1 form a rotating structure, and the spring block 10 is engaged with the valve seat 1 through the card slot 7, the number of the card slots 7 is set to two, and the spring block 10 forms a sliding structure with the valve stem 8 through the storage groove 9, which can prevent the valve stem 8 from loosening after multiple rotations and movements, thereby improving the service life of the ball valve.

[0028] See also Figure 1-5, an antifreeze ball valve, the outer wall of the valve seat 1 is fixedly connected with a connecting pipe 11, the outer wall of the connecting pipe 11 is fixedly connected with a first flange 12, one side of the first flange 12 is fixedly connected with an insert block 13, the outer wall of the first flange 12 is installed with a second flange 14, a slot 15 is opened inside the second flange 14, a bolt 16 is installed inside the second flange 14, a nut 17 is installed on the outer wall of the bolt 16, a delivery pipe 18 is fixedly connected to the inner wall of the second flange 14, one end of the delivery pipe 18 is fixedly connected with an insert ring 19, the outer wall of the insert ring 19 is sleeved with a sealing strip 20, the delivery pipe 18 is snap-fitted and connected to the connecting pipe 11 through the insert ring 19, and the bolt 16 is threadedly connected to the nut 17, the insert block 13 is snap-fitted and connected to the second flange 14 through the slot 15, and the insert block 13 is symmetrically arranged with the central axis of the first flange 12, which can facilitate the docking installation of the delivery pipe 18 and improve the stability of the pipeline connection installation.

[0029] Working principle: When in use, the protective sleeve 2 can be installed by wrapping the protective sleeve 2 on the outer wall of the valve seat 1, pulling the first Velcro 5 and sticking it to the second Velcro 6. The protective sleeve 2 is fixedly connected with the insulation layer 3 inside, and the material of the insulation layer 3 is rubber and plastic sponge, which can improve the insulation and anti-freeze performance of the protective sleeve 2. The outer wall of the insulation layer 3 is fixedly connected with the wear-resistant layer 4, and the material of the wear-resistant layer 4 is PVC, which can make the protective sleeve 2 more wear-resistant, thereby preventing the ball valve from being affected by low temperature and causing the internal liquid to freeze. By rotating the valve stem 8, the top of the valve seat 1 can squeeze the spring block 10 and store it in the storage groove 9. When the valve stem 8 rotates 90 degrees, under the action of the spring, the spring block 10 can be clamped into the clamping groove 7 for limiting, so as to prevent the valve stem 8 from loosening after multiple rotations and movements. By moving the delivery pipe 18, the insert ring 19 is inserted into the connecting pipe 11, so that the insert block 13 is inserted into the slot 15, so that the second flange 14 is docked with the first flange 12, and the bolt 16 is passed through the second flange 14 and the first flange 12, and then the nut 17 is rotated to limit it, so that the delivery pipe 18 can be docked and installed, thus completing the use process of the device. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0030] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An antifreeze ball valve, comprising a valve seat (1), characterized in that: The outer wall of the valve seat (1) is provided with a protective sleeve (2), the interior of the protective sleeve (2) is fixedly connected with a heat-insulating layer (3), the outer wall of the heat-insulating layer (3) is fixedly connected with a wear-resistant layer (4), the outer wall of the protective sleeve (2) is fixedly connected with a first Velcro (5), and the outer wall of the protective sleeve (2) is fixedly connected with a second Velcro (6); A clamping groove (7) is provided inside the valve seat (1), a valve stem (8) is mounted on the top of the valve seat (1), a receiving groove (9) is provided inside the valve stem (8), and a spring block (10) is movably connected inside the receiving groove (9); The outer wall of the valve seat (1) is fixedly connected to a connecting pipe (11), the outer wall of the connecting pipe (11) is fixedly connected to a first flange (12), one side of the first flange (12) is fixedly connected to an insert block (13), the outer wall of the first flange (12) is mounted with a second flange (14), a slot (15) is provided inside the second flange (14), bolts (16) are installed inside the second flange (14), nuts (17) are installed on the outer wall of the bolts (16), the inner wall of the second flange (14) is fixedly connected to a delivery pipe (18), one end of the delivery pipe (18) is fixedly connected to an insert ring (19), and a sealing strip (20) is sleeved on the outer wall of the insert ring (19).

2. The antifreeze ball valve according to claim 1, characterized in that: The material of the thermal insulation layer (3) is rubber-plastic sponge, and the material of the wear-resistant layer (4) is PVC.

3. The antifreeze ball valve according to claim 1, characterized in that: The thermal insulation layer (3) and the wear-resistant layer (4) are tightly fitted together, and the first Velcro (5) and the second Velcro (6) are adhesively connected.

4. The antifreeze ball valve according to claim 1, characterized in that: The valve stem (8) and the valve seat (1) form a rotating structure, and the spring block (10) is engaged and connected with the valve seat (1) via the clamping groove (7).

5. The antifreeze ball valve according to claim 1, characterized in that: The number of the clamping slots (7) is set to two, and the spring block (10) forms a sliding structure with the valve stem (8) via the receiving slot (9).

6. The antifreeze ball valve according to claim 1, characterized in that: The delivery pipe (18) is snap-connected to the connecting pipe (11) via an insert ring (19), and the bolt (16) is threadedly connected to the nut (17).

7. The antifreeze ball valve according to claim 1, characterized in that: The insert block (13) is snap-connected to the second flange (14) via a slot (15), and the insert block (13) is symmetrically arranged with respect to the central axis of the first flange (12).

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