Fireproof and anti-static ball valve with lock

Abstract

The utility model belongs to the technical field of ball valves, and particularly relates to a fireproof and anti-static ball valve with a lock, which comprises a valve body, the top end of the valve body is fixedly connected with a valve cover, the inner wall of the valve cover is screwed with a connecting shaft, the bottom end of the connecting shaft extends into the valve body and is fixedly connected with a valve core, the top end of the connecting shaft is fixedly connected with a valve rod, and the valve rod is fixedly connected with the valve cover. A locking frame is fixedly connected to the outer wall of the valve deck, a lock cylinder is arranged at the top end of the locking frame, a rotating cylinder is fixedly connected to the outer wall of the lock cylinder, a lock column and a positioning hole plate are arranged, the lock cylinder rotates to drive the rotating cylinder to rotate, and the rotating cylinder rotates to drive three sets of spiral guide sliding grooves to rotate synchronously; the telescopic plate is driven by the guide column to slide along the outer wall of the limiting groove, the telescopic plate slides to drive the lifting disc to slide stably, then the lifting disc slides to drive the locking column to be embedded into an empty groove of the positioning hole plate, locking operation on the valve rod is achieved, and deviation of the valve rod caused by mistaken touch is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and in particular relates to a fireproof and antistatic ball valve with a lock. Background Art

[0002] Ball valve, the opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between the V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium in the pipeline, but also close any channel.

[0003] After searching the patent publication number CN205260901 U, a fireproof and anti-static ball valve is disclosed. It mainly solves the problems of the existing fireproof ball valve with complex structure, large torque, difficult operation, and easy static electricity fire. It is characterized in that: the inner wall of the valve stem hole is provided with an annular sealing groove, and a sealing ring is provided in the sealing groove; at least two groups of anti-static devices are provided on the valve stem, at least one group of anti-static devices is in contact with the ball, and at least one group of anti-static devices is in contact with the valve body. Its advantage is that the sealing ring is used for sealing, and the previous structure of the packing and the packing gland is omitted, which not only makes the structure simpler, but also has smaller torque and easier operation; in addition, anti-static devices are provided between the valve stem and the valve body and the ball, which can guide the static electricity generated by friction to the valve body and the ball, and can better eliminate the hidden dangers of static electricity fire.

[0004] When the existing ball valve is in use, the valve stem is easily mis-touched and deviates, resulting in the ball valve being unable to open and close normally. In view of this, we propose a fire-proof and anti-static ball valve with a lock. Utility Model Content

[0005] The utility model aims to provide a fireproof and antistatic locked ball valve to solve the problem in the background technology that the valve stem is easily mis-touched and deviates, resulting in the inability of the ball valve to open and close normally.

[0006] In view of this, the utility model provides a fire-proof and anti-static locked ball valve, comprising a valve body, the top end of the valve body is fixedly connected to a valve cover, the inner wall of the valve cover is screwed with a connecting shaft, the bottom end of the connecting shaft extends to the inside of the valve body and is fixedly connected to a valve core, the top end of the connecting shaft is fixedly connected to a valve stem, the outer wall of the valve cover is fixedly connected to a locking frame, the top of the locking frame is provided with a lock core, the outer wall of the lock core is fixedly connected to a rotating cylinder, the outer wall of the rotating cylinder is provided with a guide slot, the outer wall of the guide slot is movably connected to a guide column, one end of the guide column is fixedly connected to a telescopic plate, a limiting groove is provided at the connecting portion of the locking frame and the telescopic plate, the bottom end of the telescopic plate is fixedly connected to a lifting disk, the bottom end of the lifting disk is fixedly connected to a lock column, and the outer wall of the lock column is embedded with a positioning hole plate fixedly connected to the outer wall of the valve stem;

[0007] The sealing component is located inside the valve body and is used for sealing operation of the valve core.

[0008] In the present technical solution, the rotation of the lock core drives the rotating cylinder to rotate, and the rotation of the rotating cylinder drives the three groups of spiral guide grooves to rotate synchronously, so that the rotation of the guide groove drives the telescopic plate to slide along the outer wall of the limit groove through the guide column, and the sliding of the telescopic plate drives the lifting plate to slide steadily, and then the sliding of the lifting plate drives the lock column to embed into the empty groove of the positioning hole plate, thereby realizing the locking operation of the valve stem and preventing the valve stem from accidentally touching and deviating.

[0009] In the above technical solution, further, the outer wall of the valve body is evenly coated with fire retardant coating.

[0010] In this technical solution, it is beneficial to improve the fire resistance performance of the valve body.

[0011] In the above technical solution, further, the guide grooves are provided in three groups, and the three groups of guide grooves are distributed in equal-angle circles about the central axis of the rotating cylinder.

[0012] In the present technical solution, three sets of guide grooves are provided, which is beneficial to improving the sliding stability of the lifting plate.

[0013] In the above technical solution, further, the guide groove has a spiral shape.

[0014] In the technical solution, the guide slide groove rotates through the guide column to drive the telescopic plate to slide along the outer wall of the limit groove, thereby realizing the control operation of the telescopic plate sliding.

[0015] In the above technical solution, further, the valve stem forms a locking structure with the locking frame through a locking column and a positioning hole plate, and the bottom end of the locking column is in a frustum shape.

[0016] In this technical solution, the guide groove rotates through the guide column to drive the telescopic plate to slide along the outer wall of the limit groove. The sliding of the telescopic plate drives the lifting plate to slide stably, and then the sliding of the lifting plate drives the locking column to embed into the empty groove of the positioning hole plate, thereby realizing the locking operation of the valve stem.

[0017] In the above technical solution, further, the sealing assembly includes:

[0018] An elastic ring, the inner wall of the valve body is fixedly connected with an elastic ring, the outer wall of the elastic ring is fixedly connected with a sealing ring that fits the outer wall of the valve core, the outer wall of the valve body is fixedly connected with an anti-static ring, and both ends of the valve body are fixedly connected with connecting flanges.

[0019] In this technical solution, the staff installs the valve body in the pipeline through the connecting flange. Then, the staff rotates the valve stem. The rotation of the valve stem drives the valve core to rotate through the connecting shaft to open and close the valve body. At the same time, the elastic ring drives the sealing ring to fit tightly with the outer wall of the valve core through its own elastic force, thereby realizing stable sealing operation of the valve core.

[0020] In the above technical solution, further, the sealing ring forms a tightly fitting structure with the lock core through the elastic ring.

[0021] In the technical solution, the elastic ring drives the sealing ring to fit tightly against the outer wall of the valve core through its own elastic force, thereby improving the sealing performance of the valve core.

[0022] The beneficial effects of the utility model are:

[0023] 1. The fireproof and anti-static locked ball valve is provided with an elastic ring. The valve stem rotates through the connecting shaft to drive the valve core to rotate, so as to open and close the valve body. At the same time, the elastic ring drives the sealing ring to fit closely with the outer wall of the valve core through its own elastic force, so as to achieve stable sealing operation of the valve core.

[0024] 2. The fireproof and anti-static locked ball valve is provided with a lock column and a positioning hole plate. The rotation of the lock core drives the rotating cylinder to rotate, and the rotation of the rotating cylinder drives the three sets of spiral guide grooves to rotate synchronously, so that the rotation of the guide groove drives the telescopic plate to slide along the outer wall of the limit groove through the guide column, and the sliding of the telescopic plate drives the lifting plate to slide stably, and then the sliding of the lifting plate drives the lock column to embed into the empty groove of the positioning hole plate, thereby realizing the locking operation of the valve stem and avoiding the valve stem from accidentally touching and deviating. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the overall cross-section structure of the utility model;

[0027] Figure 3It is a structural schematic diagram of the locking frame in the utility model;

[0028] Figure 4 It is a structural schematic diagram of a cross-section of the locking frame in the utility model.

[0029] The symbols in the figure are:

[0030] 1. Valve body; 2. Valve cover; 3. Connecting shaft; 4. Valve core; 5. Valve stem; 6. Locking frame; 7. Lock core; 8. Rotating cylinder; 9. Guide slide; 10. Guide column; 11. Telescopic plate; 12. Limiting groove; 13. Lifting plate; 14. Locking column; 15. Positioning hole plate; 16. Elastic ring; 17. Sealing ring; 18. Anti-static ring; 19. Connecting flange. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0032] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0035] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0036] Embodiment 1:

[0037] See also Figure 1-Figure 4 As shown, this embodiment provides a fireproof and antistatic locked ball valve, including a valve body 1, a valve cover 2 is fixedly connected to the top of the valve body 1, a connecting shaft 3 is screwed on the inner wall of the valve cover 2, the bottom end of the connecting shaft 3 extends to the inside of the valve body 1 and is fixedly connected to a valve core 4, the top of the connecting shaft 3 is fixedly connected to a valve stem 5, the outer wall of the valve cover 2 is fixedly connected to a locking frame 6, a lock core 7 is arranged on the top of the locking frame 6, a rotating cylinder 8 is fixedly connected to the outer wall of the lock core 7, a guide slide groove 9 is provided on the outer wall of the rotating cylinder 8, a guide column 10 is movably connected to the outer wall of the guide slide groove 9, a telescopic plate 11 is fixedly connected to one end of the guide column 10, a limiting groove 12 is provided at the connecting portion of the locking frame 6 and the telescopic plate 11, a lifting plate 13 is fixedly connected to the bottom end of the telescopic plate 11, a locking column 14 is fixedly connected to the bottom end of the lifting plate 13, and a positioning hole plate 15 fixedly connected to the outer wall of the valve stem 5 is embedded in the outer wall of the locking column 14;

[0038] The sealing component is located inside the valve body 1 and is used for sealing operation of the valve core 4 .

[0039] Among them, the rotation of the lock core 7 drives the rotating cylinder 8 to rotate, and the rotation of the rotating cylinder 8 drives the three groups of spiral guide grooves 9 to rotate synchronously, so that the rotation of the guide groove 9 drives the telescopic plate 11 to slide along the outer wall of the limit groove 12 through the guide column 10, and the sliding of the telescopic plate 11 drives the lifting plate 13 to slide stably, and then the sliding of the lifting plate 13 drives the lock column 14 to embed into the empty groove of the positioning hole plate 15, thereby realizing the locking operation of the valve stem 5 and preventing the valve stem 5 from being accidentally touched and deviated.

[0040] Embodiment 2:

[0041] This embodiment provides a fireproof and antistatic locked ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the outer wall of the valve body 1 is evenly coated with fire-retardant paint.

[0042] This is beneficial to improving the fireproof performance of the valve body 1 .

[0043] Embodiment 3:

[0044] This embodiment provides a fireproof and antistatic locked ball valve, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: three groups of guide grooves 9 are provided, and the three groups of guide grooves 9 are distributed in equal-angle circles about the central axis of the rotating cylinder 8.

[0045] Among them, by providing three groups of guide grooves 9, it is beneficial to improve the sliding stability of the lifting plate 13.

[0046] Embodiment 4:

[0047] This embodiment provides a fireproof and antistatic locked ball valve, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the guide groove 9 has a spiral shape.

[0048] The guide slide groove 9 rotates through the guide column 10 to drive the telescopic plate 11 to slide along the outer wall of the limiting groove 12, thereby realizing the control operation of the telescopic plate 11 sliding.

[0049] Embodiment 5:

[0050] This embodiment provides a fireproof and antistatic locked ball valve, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: the valve stem 5 forms a locking structure with the locking frame 6 through the locking column 14 and the positioning hole plate 15, and the bottom end of the locking column 14 is truncated cone-shaped.

[0051] Among them, the guide groove 9 rotates through the guide column 10 to drive the telescopic plate 11 to slide along the outer wall of the limit groove 12, and the sliding of the telescopic plate 11 drives the lifting plate 13 to slide stably, and then the sliding of the lifting plate 13 drives the locking column 14 to embed into the empty groove of the positioning hole plate 15, thereby realizing the locking operation of the valve stem 5.

[0052] Embodiment 6:

[0053] This embodiment provides a fireproof and antistatic locked ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The sealing component includes:

[0054] The elastic ring 16 is fixedly connected to the inner wall of the valve body 1, the outer wall of the elastic ring 16 is fixedly connected to a sealing ring 17 that fits the outer wall of the valve core 4, the outer wall of the valve body 1 is fixedly connected to an anti-static ring 18, and both ends of the valve body 1 are fixedly connected to connecting flanges 19.

[0055] Among them, the staff installs the valve body 1 in the pipeline through the connecting flange 19, and then the staff rotates the valve stem 5. The rotation of the valve stem 5 drives the valve core 4 to rotate through the connecting shaft 3 to open and close the valve body 1. At the same time, the elastic ring 16 drives the sealing ring 17 to fit tightly with the outer wall of the valve core 4 through its own elastic force, thereby realizing stable sealing operation of the valve core 4.

[0056] Embodiment 7:

[0057] This embodiment provides a fireproof and antistatic locked ball valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the sealing ring 17 forms a tightly fitting structure with the lock core 7 through the elastic ring 16.

[0058] The elastic ring 16 drives the sealing ring 17 to fit closely with the outer wall of the valve core 4 through its own elastic force, thereby improving the sealing performance of the valve core 4 .

[0059] Working principle: The staff installs the valve body 1 in the pipeline through the connecting flange 19. Then, the staff rotates the valve stem 5. The rotation of the valve stem 5 drives the valve core 4 to rotate through the connecting shaft 3 to open and close the valve body 1. At the same time, the elastic ring 16 drives the sealing ring 17 to fit tightly with the outer wall of the valve core 4 through its own elastic force, thereby realizing stable sealing operation of the valve core 4.

[0060] At the same time, the rotation of the valve stem 5 drives the positioning hole plate 15 to rotate synchronously, and rotates the positioning hole plate 15 to the bottom of the locking frame 6. Then, the staff inserts the key into the lock cylinder 7 and rotates it. The rotation of the lock cylinder 7 drives the rotating cylinder 8 to rotate. The rotation of the rotating cylinder 8 drives the three sets of spiral guide grooves 9 to rotate synchronously, so that the guide groove 9 rotates through the guide column 10 to drive the telescopic plate 11 to slide along the outer wall of the limit groove 12. The sliding of the telescopic plate 11 drives the lifting plate 13 to slide stably, and then the sliding of the lifting plate 13 drives the lock column 14 to embed into the empty groove of the positioning hole plate 15, thereby realizing the locking operation of the valve stem 5 and preventing the valve stem 5 from being accidentally touched and offset.

[0061] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A fireproof and anti-static ball valve with lock, characterized in that: include: A valve body (1), the top end of the valve body (1) is fixedly connected to a valve cover (2), the inner wall of the valve cover (2) is screwed with a connecting shaft (3), the bottom end of the connecting shaft (3) extends to the inside of the valve body (1) and is fixedly connected to a valve core (4), the top end of the connecting shaft (3) is fixedly connected to a valve stem (5), the outer wall of the valve cover (2) is fixedly connected to a locking frame (6), the top end of the locking frame (6) is provided with a lock core (7), the outer wall of the lock core (7) is fixedly connected to a rotating cylinder (8), and the outer wall of the rotating cylinder (8) A guide slot (9) is provided, the outer wall of the guide slot (9) is movably connected to a guide column (10), one end of the guide column (10) is fixedly connected to a telescopic plate (11), a limiting groove (12) is provided at the connection portion between the locking frame (6) and the telescopic plate (11), the bottom end of the telescopic plate (11) is fixedly connected to a lifting plate (13), the bottom end of the lifting plate (13) is fixedly connected to a locking column (14), and the outer wall of the locking column (14) is embedded with a positioning hole plate (15) fixedly connected to the outer wall of the valve stem (5); A sealing component is located inside the valve body (1) and is used for sealing the valve core (4).

2. The fireproof and antistatic locking ball valve according to claim 1 is characterized in that: The outer wall of the valve body (1) is evenly coated with fire retardant paint.

3. The fireproof and antistatic locking ball valve according to claim 1 is characterized in that: The guide slide grooves (9) are provided in three groups, and the three groups of guide slide grooves (9) are distributed in equal-angle circles about the central axis of the rotating cylinder (8).

4. The fireproof and antistatic locking ball valve according to claim 1 is characterized in that: The guide slide groove (9) has a spiral shape.

5. The fireproof and antistatic locking ball valve according to claim 1 is characterized in that: The valve stem (5) forms a locking structure with the locking frame (6) through a locking column (14) and a positioning hole plate (15), and the bottom end of the locking column (14) is in a frustum shape.

6. The fireproof and antistatic locking ball valve according to claim 1 is characterized in that: The sealing assembly comprises: An elastic ring (16), the inner wall of the valve body (1) is fixedly connected with the elastic ring (16), the outer wall of the elastic ring (16) is fixedly connected with a sealing ring (17) that fits the outer wall of the valve core (4), the outer wall of the valve body (1) is fixedly connected with an anti-static ring (18), and both ends of the valve body (1) are fixedly connected with connecting flanges (19).

7. The fireproof and antistatic locking ball valve according to claim 6 is characterized in that: The sealing ring (17) forms a tightly fitting structure with the lock core (7) through the elastic ring (16).

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