A soft-sealed stainless steel encrypted gate valve

Abstract

The present invention discloses a soft-sealed stainless steel encrypted gate valve, and its technical solution is as follows: It includes a valve body and a lock nut. A valve seat is fixed at the top of the valve body. A gate plate is arranged inside the valve body. A screw hole is arranged at the top of the gate plate, and a valve stem is threadedly connected in the screw hole. The top end of the valve body penetrates through the valve seat and is movably connected to the valve seat. A sleeve is fixed at the top of the valve body, and the sleeve is sleeved outside the valve stem. The top end of the valve stem is movably connected to a movable rod. A lower connection groove is formed on the top surface of the valve stem, and an upper connection groove with the same shape and corresponding position as the lower connection groove is formed on the bottom surface of the movable rod. The beneficial effect of a soft-sealed stainless steel encrypted gate valve is that by arranging a movable rod at the top of the valve stem, after the lock nut is sleeved on the movable rod, the magnetic force can cause a part of the connection block in the movable rod to move into the valve stem, and then directly rotating the lock nut can drive the movable rod and the valve stem to rotate, thereby realizing the opening and closing of the valve, and the operation is simpler, saving time and effort.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and particularly to a soft-sealed stainless steel encrypted gate valve. Background Art

[0002] A soft-sealed stainless steel encrypted gate valve is a gate valve with a valve body made of stainless steel, and its internal gate plate is sealed by vulcanization process and has an anti-theft function. The existing encrypted gate valves mainly have an anti-theft cover arranged on the valve stem. A professional unlocking tool is sleeved on the anti-theft cover, and the internal mechanism of the anti-theft cover is activated under the magnetic force of the unlocking tool, and then the anti-theft cover is pressed to disassemble it. Finally, the unlocking tool is sleeved on the top of the valve stem and rotated to realize the opening and closing of the valve. The operation of this kind of encrypted gate valve is relatively complex, time-consuming and laborious. Summary of the Invention

[0003] Therefore, the present invention provides a soft-sealed stainless steel encrypted gate valve. By arranging a movable rod at the top of the valve stem, after the lock nut is sleeved on the movable rod, the magnetic force can be used to promote a part of the connecting block in the movable rod to move into the valve stem, and then directly rotating the lock nut can drive the movable rod and the valve stem to rotate, thereby realizing the opening and closing of the valve. Compared with the prior art, the operation is simpler, time-saving and labor-saving, so as to solve the problem that the encryption method of the existing soft-sealed stainless steel encrypted gate valve is relatively complex, time-consuming and laborious.

[0004] In order to achieve the above object, the present invention provides the following technical solution: A soft-sealed stainless steel encrypted gate valve, comprising a valve body and a lock nut. A valve seat is fixed at the top of the valve body. A gate plate is arranged inside the valve body. A screw hole is arranged at the top of the gate plate. A valve stem is threadedly connected in the screw hole. The top of the valve body penetrates through the valve seat and is movably connected with the valve seat. A sleeve is fixed at the top of the valve body. The sleeve is sleeved outside the valve stem. The top of the valve stem is movably connected with a movable rod. A lower connecting groove is arranged on the top surface of the valve stem. An upper connecting groove with the same shape and corresponding position as the lower connecting groove is arranged on the bottom surface of the movable rod. A connecting block is arranged in the upper connecting groove. A plurality of installation cavities are arranged on the side wall of the upper connecting groove. A first magnet is arranged in the installation cavity. The first magnet is fixedly connected with the inner wall of the installation cavity through a spring. One end of the first magnet close to the upper connecting groove is connected with the connecting block through a transmission component;

[0005] The bottom of the lock nut is provided with a groove matching the diameter of the movable rod. A positioning block is fixedly connected to the outer wall of the movable rod. A positioning groove matching the shape of the positioning block is arranged at the edge of the groove. A second magnet is fixedly connected to the inner wall of the groove.

[0006] Preferably, an annular groove is arranged on the outer wall of the top end of the valve stem. A positioning ring is fixed at the bottom end of the movable rod. The inner side of the positioning ring extends into the annular groove.

[0007] Preferably, the cross-sections of the upper connection groove, the lower connection groove and the connection block are all regular polygons.

[0008] Preferably, the cross-sections of the upper connection groove, the lower connection groove and the connection block are all squares.

[0009] Preferably, the transmission assembly includes a pull rod and a push rod. One end of the push rod penetrates into the installation cavity and is fixedly connected to the first magnet. The other end of the push rod is hinged to the pull rod, and the end of the pull rod away from the push rod is hinged to the top surface of the connection block.

[0010] Preferably, a through hole is formed in the side wall of the lock nut, and a handle is movably inserted into the through hole.

[0011] Preferably, positioning bolts are arranged at both ends of the handle, and the positioning bolts penetrate through the outer wall of the handle and are threadedly connected to the outer wall of the handle.

[0012] Preferably, a limiting hole is formed in the outer wall of the movable rod, and a limiting bolt is arranged on the side wall of the lock nut. The limiting bolt penetrates through the side wall of the lock nut and is threadedly connected to the side wall of the lock nut.

[0013] The embodiments of the present invention have the following advantages:

[0014] 1. By arranging a movable rod at the top of the valve stem, after the lock nut is sleeved on the movable rod, the magnetic force can be used to promote the movement of the connection block part in the movable rod into the valve stem, and then directly rotating the lock nut can drive the movable rod and the valve stem to rotate, thereby realizing the opening and closing of the valve. Compared with the prior art, the operation is simpler, time-saving and labor-saving;

[0015] 2. By arranging a handle on the lock nut, it is more labor-saving to rotate the lock nut. By arranging a limiting hole and a limiting bolt, when the gate valve does not need to be encrypted, the limiting bolt can be rotated into the limiting hole to fix the lock nut on the outside of the movable rod to prevent the lock nut from being lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0017] The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0018] Figure 1 is the overall structure schematic diagram provided by the present invention;

[0019] Figure 2 is the overall structure sectional view provided by the present invention;

[0020] Figure 3 is provided by the present invention Figure 2 enlarged view of the structure of part A;

[0021] Figure 4 is the structure schematic diagram of the lock cap provided by the present invention;

[0022] Figure 5 is the structure schematic diagram of the movable rod provided by the present invention;

[0023] Figure 6 is the structure schematic diagram of the top end of the valve stem provided by the present invention.

[0024] In the figure: 1 valve body, 2 lock cap, 3 valve seat, 4 gate plate, 5 screw hole, 6 valve stem, 7 sleeve, 8 movable rod, 9 lower connection groove, 10 upper connection groove, 11 installation cavity, 12 first magnet, 13 connection block, 14 spring, 15 groove, 16 positioning block, 17 positioning groove, 18 second magnet, 19 annular groove, 20 positioning ring, 21 pull rod, 22 push rod, 23 handle, 24 positioning bolt, 25 limit hole, 26 limit bolt. Specific Embodiments

[0025] The following specific embodiments illustrate the implementation manners of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Refer to the appendix Figures 1-6, A soft-sealed stainless steel encrypted gate valve provided by the present invention includes a valve body 1 and a lock nut 2. A valve seat 3 is fixed at the top of the valve body 1. A gate plate 4 is arranged inside the valve body 1. A screw hole 5 is arranged at the top of the gate plate 4. A valve stem 6 is threadedly connected in the screw hole 5. The top end of the valve body 1 penetrates through the valve seat 3 and is movably connected to the valve seat 3. A sleeve 7 is fixed at the top of the valve body 1. The sleeve 7 is sleeved outside the valve stem 6. The top end of the valve stem 6 is movably connected to a movable rod 8. A lower connection groove 9 is formed on the top surface of the valve stem 6. An upper connection groove 10 with the same shape and corresponding position as the lower connection groove 9 is formed on the bottom surface of the movable rod 8. A connection block 13 is arranged in the upper connection groove 10. A plurality of installation cavities 11 are arranged on the side wall of the upper connection groove 10. A first magnet 12 is arranged in the installation cavity 11. The first magnet 12 is fixedly connected to the inner wall of the installation cavity 11 through a spring 14. One end of the first magnet 12 close to the upper connection groove 10 is connected to the connection block 13 through a transmission component;

[0027] A groove 15 matching the diameter of the movable rod 8 is formed at the bottom of the lock nut 2. A positioning block 16 is fixedly connected to the outer wall of the movable rod 8. A positioning groove 17 matching the shape of the positioning block 16 is arranged at the edge of the groove 15. A second magnet 18 is fixedly connected to the inner wall of the lock nut 2.

[0028] In this embodiment, by arranging the movable rod 8 at the top of the valve stem 6, after the lock nut 2 is sleeved on the movable rod 8, the magnetic force can promote a part of the connection block 13 in the movable rod 8 to move into the valve stem 6. Then, directly rotating the lock nut 2 can drive the movable rod 8 and the valve stem 6 to rotate, thereby realizing the opening and closing of the valve. Compared with the prior art, the operation is simpler, time-saving and labor-saving.

[0029] Among them, in order to achieve the purpose of preventing the movable rod 8 from falling off, the present device is realized by the following technical solution: An annular groove 19 is arranged on the outer wall of the top end of the valve stem 6. A positioning ring 20 is fixed at the bottom end of the movable rod 8. The inner side of the positioning ring 20 extends into the annular groove 19;

[0030] Among them, in order to achieve the purpose of transmission, the present device is realized by the following technical solution: The cross-sections of the upper connection groove 10, the lower connection groove 9 and the connection block 13 are all set as regular polygons, and the cross-sections of the upper connection groove 10, the lower connection groove 9 and the connection block 13 are all set as squares;

[0031] Among them, in order to achieve the purpose of controlling the position of the connection block 13 by the movement of the magnetic block, the present device is realized by the following technical solution: The transmission component includes a pull rod 21 and a push rod 22. One end of the push rod 22 penetrates into the installation cavity 11 and is fixedly connected to the first magnet 12. The other end of the push rod 22 is hinged to the pull rod 21. One end of the pull rod 21 away from the push rod 22 is hinged to the top surface of the connection block 13;

[0032] Among them, for the purpose of achieving labor-saving, the present device is implemented by the following technical solution: a through hole is provided on the side wall of the lock cap 2, and a handle 23 is movably inserted into the through hole, and it is more labor-saving to rotate the lock cap 2 by using the handle 23;

[0033] Among them, for the purpose of preventing the handle 23 from detaching from the lock cap 2, the present device is implemented by the following technical solution: positioning bolts 24 are provided at both ends of the handle 23, and the positioning bolts 24 penetrate through the outer wall of the handle 23 and are threadedly connected to the outer wall of the handle 23;

[0034] Among them, for the purpose of fixing the lock cap 2 outside the movable rod 8, the present device is implemented by the following technical solution: a limiting hole 25 is provided on the outer wall of the movable rod 8, a limiting bolt 26 is provided on the side wall of the lock cap 2, the limiting bolt 26 penetrates through the side wall of the lock cap 2 and is threadedly connected to the side wall of the lock cap 2. When the gate valve does not need to be encrypted, the limiting bolt 26 can be rotated to insert it into the limiting hole 25, thereby fixing the lock cap 2 and preventing the lock cap 2 from loosening and detaching.

[0035] The use process of the present invention is as follows: when using the present invention, the lock cap 2 is sleeved on the movable rod 8 so that the positioning groove 17 on the lock cap 2 just matches the position of the positioning block 16 on the movable rod 8. At this time, the second magnet 18 on the inner wall of the lock cap 2 just corresponds to the position of the first magnet 12 in the movable rod 8. The second magnet 18 and the first magnet 12 repel each other with the same pole, which can push the first magnet 12 to move and compress the first spring 14. When the first magnet 12 moves, it can drive the push rod 22 to move. The connecting block 13 moves to the lower connecting groove 9 under the action of gravity and drives the pull rod 21 to rotate. At this time, the upper and lower ends of the connecting block 13 are respectively located in the upper connecting groove 10 and the lower connecting groove 9. Then, by rotating the lock cap 2 through the handle 23, the movable rod 8 can be driven to rotate. The movable rod 8 can drive the valve rod 6 to rotate through the connecting block 13, and the valve rod 6 can drive the gate plate 4 to move vertically, so as to realize the opening and closing of the valve. After the lock cap 2 is disassembled, the first magnet returns to its original position under the action of the spring 14, which can drive the push rod 22 to move back to its original position. The movement of the push rod 22 can pull the connecting block 13 up to the upper connecting groove 10 through the pull rod 21. At this time, rotating the movable rod 8 cannot drive the valve rod 6 to rotate.

[0036] The above is only a preferred embodiment of the present invention. Any person skilled in the art may modify the present invention by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present invention falls within the scope of protection required by the present invention.

Claims

1. A soft-sealed stainless steel encrypted gate valve, comprising a valve body (1) and a lock cap (2). A valve seat (3) is fixed to the top of the valve body (1). A gate plate (4) is arranged inside the valve body (1). A screw hole (5) is arranged at the top of the gate plate (4). A valve stem (6) is connected to the screw hole (5) by internal threads. The top end of the valve body (1) penetrates through the valve seat (3) and is movably connected to the valve seat (3). It is characterized in that: A sleeve (7) is fixed to the top of the valve body (1). The sleeve (7) is sleeved outside the valve stem (6). The top end of the valve stem (6) is movably connected to a movable rod (8). A lower connection groove (9) is formed on the top surface of the valve stem (6). An upper connection groove (10) having the same shape and corresponding position as the lower connection groove (9) is formed on the bottom surface of the movable rod (8). A connection block (13) is arranged in the upper connection groove (10). A plurality of installation cavities (11) are arranged on the side wall of the upper connection groove (10). A first magnet (12) is arranged in the installation cavity (11). The first magnet (12) is fixedly connected to the inner wall of the installation cavity (11) through a spring (14). One end of the first magnet (12) close to the upper connection groove (10) is connected to the connection block (13) through a transmission assembly; A groove (15) matching the diameter of the movable rod (8) is formed at the bottom of the lock nut (2). A positioning block (16) is fixedly connected to the outer wall of the movable rod (8). A positioning groove (17) matching the shape of the positioning block (16) is arranged at the edge of the groove (15). A second magnet (18) is fixedly connected to the inner wall of the groove (15); An annular groove (19) is arranged on the outer wall of the top end of the valve stem (6). A positioning ring (20) is fixed to the bottom end of the movable rod (8). The inner side of the positioning ring (20) extends into the annular groove (19); The cross sections of the upper connection groove (10), the lower connection groove (9) and the connection block (13) are all set as regular polygons; The cross sections of the upper connection groove (10), the lower connection groove (9) and the connection block (13) are all set as squares; The transmission assembly includes a pull rod (21) and a push rod (22). One end of the push rod (22) penetrates into the installation cavity (11) and is fixedly connected to the first magnet (12). The other end of the push rod (22) is hinged to the pull rod (21). One end of the pull rod (21) far from the push rod (22) is hinged to the top surface of the connection block (13).

2. The soft-sealed stainless steel encrypted gate valve according to claim 1, characterized in that: A through hole is formed in the side wall of the lock nut (2). A handle (23) is movably inserted into the through hole.

3. The soft-sealed stainless steel encrypted gate valve according to claim 2, characterized in that: Positioning bolts (24) are arranged at both ends of the handle (23). The positioning bolts (24) penetrate through the outer wall of the handle (23) and are threadedly connected to the outer wall of the handle (23).

4. A soft-sealed stainless steel encrypted gate valve according to claim 1, characterized in that: A limiting hole (25) is formed in the outer wall of the movable rod (8). A limiting bolt (26) is arranged on the side wall of the lock nut (2). The limiting bolt (26) penetrates through the side wall of the lock nut (2) and is threadedly connected to the side wall of the lock nut (2).

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