Gate valve with magnetic control opening and closing function

Abstract

The utility model relates to the technical field of gate valves, in particular to a gate valve with a magnetic control opening and closing function, which structurally comprises a valve body, a valve cover arranged at the top of the valve body, a valve plate arranged in the valve body in a sliding manner, and a valve rod penetrating through the valve cover and driving the valve plate to open and close a valve cavity in the valve body, according to the magnetic anti-theft gate valve, through combination of the magnetic protruding block and the magnetic control device, when a plurality of magnetic anti-theft gate valves need to be operated, a worker only needs to carry a set of key assembly, the magnetic protruding block and the magnetic control device are combined, the magnetic protruding block and the magnetic control device are combined, the key assembly can be used for locking the valve rod and the valve plate, and therefore the magnetic anti-theft gate valves can be operated conveniently. The magnetic pole arrangement mode of the top of the first magnetic block in the corresponding gate valve lock cylinder piece is obtained through testing of the magnetic protruding blocks, so that each magnetic control device is rotationally adjusted, each magnetic control device and the magnetic pole of the first magnetic block are in a repulsive state, the gate valve can be opened and closed, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a gate valve with a magnetically controlled opening and closing function. Background Art

[0002] The magnetic lock gate valve uses a magnetic component to open or close the gate valve. It is generally used on valves with important, special positions and functions to prevent the valve from being opened or closed at will.

[0003] The patent document with the patent number of CN201425099Y discloses a magnetic anti-theft gate valve, including a valve body, a valve core, a valve stem and a valve cover, the lower end of the valve stem is connected to the valve core, the upper end of the valve stem extends out of the valve cover and is connected to a valve cover sleeve, a locking mechanism is provided between the valve cover and the valve cover sleeve, a key is flexibly inserted on the valve cover sleeve, an unlocking mechanism is provided in the key, the locking mechanism includes a lower blind hole provided on the upper end wall of the valve cover and an upper blind hole provided on the lower end wall of the valve cover sleeve corresponding to the lower blind hole, a lock pin is flexibly inserted in the lower blind hole, a spring is provided at the lower end of the lock pin, a lower magnetic steel is flexibly inserted in the upper blind hole, the upper end face of the lock pin is top-connected to the lower end face of the lower magnetic steel under the action of the spring, the unlocking mechanism is an upper magnetic steel provided in the key corresponding to the position of the lower magnetic steel, and the upper magnetic steel and the lower magnetic steel are arranged on opposite sides with opposite polarities;

[0004] The following deficiencies still exist in its actual application: the magnetic pole arrangements of the magnetic blocks in the lock cores of different magnetic anti-theft gate valves are different, resulting in the need for staff to carry multiple different magnetic keys when operating multiple magnetic anti-theft gate valves, and the staff also need to check the corresponding keys for each gate valve for switching, which brings inconvenience to the valve opening and closing operations; in addition, the length of the existing magnetic anti-theft lock key operating handle is fixed. When the magnetic anti-theft gate valve is idle for a long time, it is difficult to twist the valve stem to open and close it with the operating handle, which is inconvenient to use. Utility Model Content

[0005] The utility model provides a gate valve with a magnetically controlled opening and closing function, which can effectively solve the above problems.

[0006] The utility model is achieved in this way:

[0007] A gate valve with a magnetically controlled opening and closing function, the structure of which includes: a valve body, a valve cover arranged on the top of the valve body, a valve plate slidably arranged in the valve body, a valve stem that penetrates the valve cover and drives the valve plate to open and close the valve cavity in the valve body, the valve cover is provided with a lock core part and a key assembly from bottom to top, one end of the valve stem is connected to the bottom of the lock core part, and the other end is connected to the valve plate, a plurality of locking holes are provided on the valve cover, and a first spring and a locking pin are provided in the locking hole from bottom to top, a magnetically controlled pin hole corresponding to the locking hole and larger than the diameter of the locking hole is provided at the bottom of the lock core part, and a first magnetic block is provided in the magnetically controlled pin hole; the key assembly includes a key head, two magnetic protrusions are equidistantly provided on the bottom edge of the key head, a positioning recess corresponding to the magnetic protrusion is provided on the top of the lock core part, and a plurality of vertically rotating magnetic control devices are provided at the bottom of the key head and are respectively distributed corresponding to the first magnetic blocks.

[0008] As a further improvement, the magnetic control device includes a rotating block with a mounting hole passing through the rotating block, a second elongated magnetic block is arranged in the mounting hole, and both ends of the second magnetic block extend to the side walls of the rotating block respectively, and fixed shafts are respectively arranged at the front and rear ends of the rotating block; a rotating cavity for fixing the rotating block is provided at the bottom of the key head, and the rotating cavity has a first opening passing through the bottom of the key head and corresponding to the first magnetic block, and a second opening passing through the side wall of the key head for pushing the rotating block to rotate.

[0009] As a further improvement, the side wall of the rotating block is also provided with two limit grooves symmetrically arranged around the center of the axis, and the key head is provided with a first sliding groove connected to the rotating cavity, and the first sliding groove is slidably connected with a locking protrusion corresponding to the limit groove, and the first sliding groove is also provided with a second spring for pushing the locking protrusion to cooperate with the limit groove.

[0010] As a further improvement, a driving seat is provided on the top of the key head, a slot hole is horizontally passed through the driving seat, and a rotating rod slides in the slot hole.

[0011] As a further improvement, one end of the rotating rod has a sliding rod, and a telescopic rod is slidably connected to the outside of the sliding rod. Guide columns are respectively provided on the upper and lower sides of the outermost end of the sliding rod. The telescopic rod has a second sliding groove arranged corresponding to the guide column, and also includes a locking piece for fixing the telescopic rod to the sliding rod.

[0012] As a further improvement, the telescopic rod is composed of two parallel strip plates, and one end of the two strip plates are connected to each other, and the other end is provided with an opening for the sliding rod to pass through; the locking member includes a flip block rotatably arranged on one of the strip plates of the telescopic rod at one end close to the opening, the bottom of the flip block has a bayonet, the surface of the sliding rod has a plurality of adjustment holes arranged along its length direction and corresponding to the bayonet, and the strip plate of the telescopic rod is also provided with a through groove for the bayonet to flip and connected to the adjustment hole.

[0013] As a further improvement, the guide column is a cylindrical structure with a diameter equal to the width of the second slide groove, and a hammer block is provided at one end of the telescopic rod where the two strip plates are connected.

[0014] As a further improvement, one end of the rotating rod away from the sliding rod is movably connected with a pull ring.

[0015] As a further improvement, the width of the hammer block gradually increases from the inside to the outside, and the maximum width is greater than the aperture of the slot.

[0016] The beneficial effects of the utility model are:

[0017] The utility model combines a magnetic protrusion and a magnetic control device. When a plurality of magnetic anti-theft gate valves need to be operated, the staff only needs to carry a set of key components, and obtain the arrangement of the magnetic poles on the top of the first magnetic block in the corresponding gate valve lock core through the magnetic protrusion test, thereby rotating and adjusting each magnetic control device to cause each magnetic control device and the magnetic pole of the first magnetic block to be in a repulsive state, so that the gate valve can be opened and closed, and the operation is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a gate valve with magnetically controlled opening and closing functions provided by the utility model;

[0020] Figure 2 This is a schematic diagram of a half-section structure of a gate valve provided by the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional assembly structure of the gate valve provided by the utility model;

[0022] Figure 4 It is a structural schematic diagram of the key assembly provided by the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the key assembly provided by the utility model when viewed from above;

[0024] Figure 6 It is a structural schematic diagram of a partial cross-section of the key assembly provided by the utility model;

[0025] Figure 7 The utility model provides Figure 6 A is a schematic diagram of the structure enlarged;

[0026] Figure 8 It is a structural schematic diagram of the magnetic control device provided by the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the first state of the rotating rod and the telescopic rod provided by the utility model;

[0028] Fig.10 It is a structural schematic diagram of a partial cross-section of the rotating rod provided by the utility model;

[0029] Fig.11 The utility model provides Fig.10 Middle B is a schematic diagram of the enlarged structure;

[0030] Fig.12 The utility model provides Fig.10 Middle C is a schematic diagram of the enlarged structure;

[0031] Fig.13 It is a structural schematic diagram of the second state of the rotating rod and the telescopic rod provided by the utility model.

[0032] In the figure: valve body 1, valve cover 2, valve plate 3, valve stem 4, lock core 5, key assembly 6, locking hole 21, first spring 22, locking pin 23, magnetic control pin hole 51, first magnetic block 52, key head 61, magnetic protrusion 62, positioning concave hole 53, magnetic control device 63, rotating block 631, mounting hole 632, second magnetic block 633, fixed shaft 634, rotating Rotating cavity -611, limiting groove -635, first sliding groove -612, locking protrusion -636, second spring -613, driving seat -64, slot hole -641, rotating rod -7, sliding rod -71, telescopic rod -72, guide column -73, second sliding groove -74, locking piece -75, flip block -751, bayonet -752, adjusting hole -711, through groove -753, hammer block -76, pull ring -77. DETAILED DESCRIPTION

[0033] In order to make the embodiments of the utility model, all belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but only represents the selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as referring to the purpose, technical solutions and advantages of the methods. To be clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work indicate or imply relative importance or implicitly indicate the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] At present, the magnetic poles of the magnetic blocks in the lock cores of different magnetic anti-theft gate valves are arranged differently, which means that when multiple magnetic anti-theft gate valves need to be operated, the staff needs to carry multiple different magnetic keys, and also needs to check the corresponding keys for each gate valve to switch, which brings inconvenience to the valve opening and closing operation. In order to solve the above technical problems, this case proposes the following technical solutions:

[0036] Reference Figures 1 to 13 As shown, a gate valve with a magnetically controlled opening and closing function comprises: a valve body 1, a valve cover 2 arranged on the top of the valve body 1, a valve plate 3 slidably arranged in the valve body 1, a valve stem 4 penetrating the valve cover 2 and driving the valve plate 3 to open and close the valve cavity in the valve body 1, the valve cover 2 is provided with a lock core 5 and a key assembly 6 in sequence from bottom to top, one end of the valve stem 4 is connected to the bottom of the lock core 5, and the other end is connected to the valve plate 3, a plurality of locking holes 21 are provided on the valve cover 2, and a first spring 22 and a locking spring 6 are provided in the locking hole 21 in sequence from bottom to top. The lock core 5 has a magnetic control pin hole 51 at the bottom thereof, which is corresponding to the locking hole 21 and has a diameter larger than that of the locking hole 21. A first magnetic block 52 is arranged in the magnetic control pin hole 51. The key assembly 6 includes a key head 61. Two magnetic protrusions 62 are equidistantly arranged at the bottom edge of the key head 61. A positioning recessed hole 53 corresponding to the magnetic protrusion 62 is arranged at the top of the lock core 5. A plurality of magnetic control devices 63 are arranged at the bottom of the key head 61, which are vertically rotatable and respectively distributed corresponding to the first magnetic blocks 52.

[0037] It should be noted that the magnetic protrusion 62 is a long strip structure and is detachably connected to the key head 61. A connection groove is provided at the bottom of the key head 61 for the magnetic protrusion 62 to be inserted and connected. Specifically, the key head 61 can be iron metal, so that the magnetic protrusion 62 is magnetically attracted to the bottom of the key head 61, which is convenient for removing and installing the magnetic protrusion 62. The two ends of the magnetic protrusion 62 are respectively provided with magnetic pole marks, which is convenient for quickly determining the magnetic poles.

[0038] Therefore, when it is necessary to operate multiple magnetic anti-theft gate valves to open and close, remove any magnetic protrusion 62 at the bottom of the key head 61, and bring one end of the magnetic protrusion 62 close to the first magnetic block 52 on the lock core 5. When the magnetic protrusion 62 is attracted and fixed to the top of the lock core 5, it means that the magnetic pole at the top of the first magnetic block 52 is opposite to the magnetic pole indicated by the magnetic protrusion 62. On the contrary, after the magnetic protrusion 62 approaches the first magnetic block 52 on the lock core 5, the magnetic protrusion 62 is bounced open, indicating that the magnetic pole at the top of the first magnetic block 52 is the same as the magnetic pole indicated by the magnetic protrusion 62. After judging the top magnetic pole of the first magnetic block 52 on the lock core 5 in turn, the required arrangement of the key magnetic pole when operating the gate valve is obtained, so that each magnetic control device 63 is rotated and adjusted separately to cause the bottom magnetic pole of each magnetic control device 63 to align with the first magnetic block 52 of the lock core 5. The top magnetic poles are in a repulsive state, and then the magnetic protrusion 62 is aligned with the positioning recessed hole 53 and inserted. At this time, the first magnetic block 52 pushes the locking pin 23 downward along the magnetic control pin hole 51 under the action of the repulsive force, and the locking pin 23 squeezes the first spring 22 and moves down along the locking hole 21, thereby releasing the lock of the lock core 5 by the locking pin 23, and by rotating the key assembly 6, the lock core 5 drives the valve stem 4 to rotate synchronously, thereby realizing the opening and closing control of the gate valve; by analogy, when multiple magnetic anti-theft gate valves need to be operated, the staff only needs to carry a set of key assemblies 6, and obtain the magnetic pole arrangement of the top of the first magnetic block 52 in the corresponding gate valve lock core 5 through the magnetic protrusion 62 test, thereby rotating and adjusting each magnetic control device 63, causing each magnetic control device 63 to be in a repulsive state with the magnetic pole of the first magnetic block 52, and the gate valve can be opened and closed, and the operation is relatively simple.

[0039] Specifically, the magnetic control device 63 includes a rotating block 631, a mounting hole 632 is passed through the rotating block 631, a second strip-shaped magnetic block 633 is arranged in the mounting hole 632, and two ends of the second magnetic block 633 extend to the side wall of the rotating block 631 respectively, and a fixed shaft 634 is respectively provided at the front and rear ends of the rotating block 631; a rotating cavity 611 for fixing the rotating block 631 is provided at the bottom of the key head 61, and the rotating cavity 611 has a first opening that passes through the bottom of the key head 61 and corresponds to the first magnetic block 52, and a second opening that passes through the side wall of the key head 61 and is used to push the rotating block 631 to rotate;

[0040] Therefore, when the orientation of the second magnetic block 633 needs to be adjusted, the rotating block 631 is driven to rotate around the fixed axis 634 through the second opening, and the magnetic pole of the second magnetic block 633 facing downward is observed through the first opening.

[0041] In order to facilitate the determination of the downward magnetic pole of the second magnetic block 633, different colors of paint are applied to the two ends of the second magnetic block 633, so that the upper and lower magnetic poles of the second magnetic block 633 can be quickly determined. Corresponding marks can also be set on the side of the rotating block 631. When the rotating block 631 is rotated, the downward magnetic pole of the second magnetic block 633 can be quickly determined by the mark.

[0042] At the same time, in order to prevent the rotating block 631 from rotating in the rotating cavity 611 during the twisting process of the key assembly 6, causing the lock core 5 to be locked by the locking pin 23, the side wall of the rotating block 631 is further provided with two limiting grooves 635 symmetrically arranged around the axis center, and the key head 61 is provided with a first sliding groove 612 connected to the rotating cavity 611, and a locking protrusion 636 corresponding to the limiting groove 635 is slidably connected in the first sliding groove 612, and a second spring 613 is further provided in the first sliding groove 612 to push the locking protrusion 636 to cooperate with the limiting groove 635;

[0043] Therefore, when the rotating block 631 is rotated to make the second magnetic block 633 in a vertical state, the second spring 613 pushes the locking protrusion 636 to pop outward along the first slide groove 612, and the rotating block 631 is fixed by the locking protrusion 636, thereby ensuring that the lock core component 5 and the key assembly 6 can normally control the opening and closing of the gate valve.

[0044] Among them, in order to save more effort when twisting the key assembly 6, a driving seat 64 is provided on the top of the key head 61, and a slot 641 is horizontally penetrated by the driving seat 64. A rotating rod 7 slides in the slot 641, and then the key head 61 can be driven to twist by the rotating rod 7, and the rotating rod 7 can be pulled along the slot 641, thereby changing the torque of twisting the key head 61, thereby achieving the purpose of saving effort.

[0045] Furthermore, the rotating rod 7 has a sliding rod 71 at one end, and a telescopic rod 72 is slidably connected to the outside of the sliding rod 71. Guide columns 73 are respectively provided on the upper and lower sides of the outermost end of the sliding rod 71. The telescopic rod 72 has a second sliding groove 74 arranged corresponding to the guide column 73, and also includes a locking member 75 for fixing the telescopic rod 72 to the sliding rod 71.

[0046] Therefore, for the magnetic anti-theft gate valve that has been idle for a long time, when it is difficult for the rotating rod 7 to control the key head 61 to twist the valve stem to open and close, the locking piece 75 is opened to drive the telescopic rod 72 to slide outward along the length direction of the slide rod 71. Specifically, the second slide groove 74 of the telescopic rod 72 slides outward along the guide column 73. After the adjustment is completed, the locking piece 75 is used to fix the telescopic rod 72 and the slide rod 71, thereby extending the length of the rotating rod 7, increasing the torsional force arm, and also increasing the torsional torque, thereby achieving the purpose of saving effort.

[0047] The telescopic rod 72 is composed of two parallel strip plates, and one end of the two strip plates is connected to each other, and the other end is provided with an opening for the slide bar 71 to pass through; the locking member 75 includes a flip block 751 rotatably arranged on one end of the strip plates of the telescopic rod 72 close to the opening, and the bottom of the flip block 751 has a latch 752, and the surface of the slide bar 71 has a plurality of adjustment holes 711 arranged along the length direction thereof and corresponding to the latch 752, and the strip plates of the telescopic rod 72 are also provided with a through groove 753 for the latch 752 to flip and communicate with the adjustment hole 711;

[0048] When the telescopic rod 72 needs to be adjusted, the flip block 751 is flipped upwards. At this time, the latch pin 752 is disconnected from the adjustment hole 711, so that the telescopic rod 72 can be pulled to adjust to a suitable position. After the adjustment of the telescopic rod 72 is completed, the flip block 751 is flipped downwards and reset, so that the latch pin 752 passes through the through slot 753 and is inserted into the adjustment hole 711, thereby locking the telescopic rod 72 and the sliding rod 71.

[0049] It should be noted that the guide column 73 is a cylindrical structure, and its diameter is equal to the width of the second slide slot 74. A hammer block 76 is provided at one end of the telescopic rod 72 where the two strip plates are connected.

[0050] like Fig.13 As shown, when operating a gate valve that is difficult to twist, the flip block 751 can also be flipped upward to release the connection between the pin 752 and the adjustment hole 711, pull the telescopic rod 72 outward, and drive the telescopic rod 72 to rotate around the guide column 73, so that the telescopic rod 72 and the slide bar 71 are in a vertical state, driving one end with the hammer block 76 away from the slide bar 71, and then quickly push the telescopic rod 72 to slide, causing the hammer block 76 to hit the outermost end of the slide bar 71, thereby generating a larger torque, which is convenient for quickly twisting the gate valve.

[0051] Furthermore, in order to facilitate pulling the rotating rod 7 to slide along the slot 641 , one end of the rotating rod 7 away from the sliding rod 71 is movably connected with a pull ring 77 .

[0052] At the same time, in order to prevent the rotating rod 7 or the telescopic rod 72 from slipping out of the slot hole 641 , the width of the hammer block 76 gradually increases from the inside to the outside, and the maximum width is greater than the aperture of the slot hole 641 .

[0053] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A gate valve with magnetically controlled opening and closing function, the structure of which includes: A valve body (1), a valve cover (2) arranged on the top of the valve body (1), a valve plate (3) slidably arranged in the valve body (1), a valve stem (4) penetrating the valve cover (2) and driving the valve plate (3) to open and close the valve cavity in the valve body (1), the valve cover (2) being provided with a lock core component (5) and a key assembly (6) in sequence from bottom to top, one end of the valve stem (4) being connected to the bottom of the lock core component (5), and the other end being connected to the valve plate (3), the valve cover (2) being provided with a plurality of locking holes (21), the locking holes (21) being provided with a first spring (22) and a locking pin (23) in sequence from bottom to top, the lock core component ( 5) A magnetic control pin hole (51) corresponding to the locking hole (21) and larger than the diameter of the locking hole (21) is provided at the bottom, and a first magnetic block (52) is provided in the magnetic control pin hole (51); it is characterized in that: the key assembly (6) includes a key head (61), two magnetic protrusions (62) are equidistantly provided on the bottom edge of the key head (61), a positioning recessed hole (53) corresponding to the magnetic protrusion (62) is provided at the top of the lock core (5), and a plurality of vertically rotating magnetic control devices (63) are provided at the bottom of the key head (61) and are respectively distributed corresponding to the first magnetic blocks (52).

2. A gate valve with magnetically controlled opening and closing function as claimed in claim 1, characterized in that: The magnetic control device (63) comprises a rotating block (631), a mounting hole (632) passing through the rotating block (631), a second strip-shaped magnetic block (633) being arranged in the mounting hole (632), and two ends of the second magnetic block (633) respectively extending to the side wall of the rotating block (631), and a fixed shaft (634) being respectively arranged at the front and rear ends of the rotating block (631); a rotating cavity (611) for fixing the rotating block (631) is arranged at the bottom of the key head (61), and the rotating cavity (611) has a first opening passing through the bottom of the key head (61) and corresponding to the first magnetic block (52), and a second opening passing through the side wall of the key head (61) for driving the rotating block (631) to rotate.

3. A gate valve with magnetically controlled opening and closing function as claimed in claim 2, characterized in that: The side wall of the rotating block (631) is also provided with two limiting grooves (635) symmetrically arranged around the axis center. The key head (61) is provided with a first sliding groove (612) connected to the rotating cavity (611). A locking protrusion (636) corresponding to the limiting groove (635) is slidably connected in the first sliding groove (612). The first sliding groove (612) is also provided with a second spring (613) for pushing the locking protrusion (636) to cooperate with the limiting groove (635).

4. A gate valve with magnetically controlled opening and closing function as claimed in any one of claims 1 to 3, characterized in that: A driving seat (64) is provided on the top of the key head (61), a slot hole (641) is horizontally passed through the driving seat (64), and a rotating rod (7) is slidably disposed in the slot hole (641).

5. A gate valve with magnetically controlled opening and closing function as claimed in claim 4, characterized in that: The rotating rod (7) has a sliding rod (71) at one end, and a telescopic rod (72) is slidably connected to the outside of the sliding rod (71). Guide columns (73) are respectively provided on the upper and lower sides of the outermost end of the sliding rod (71). The telescopic rod (72) has a second sliding groove (74) arranged corresponding to the guide column (73), and also includes a locking member (75) for fixing the telescopic rod (72) on the sliding rod (71).

6. A gate valve with magnetically controlled opening and closing function as claimed in claim 5, characterized in that: The telescopic rod (72) is composed of two parallel strip plates, one end of which is connected to each other, and the other end is provided with an opening for the slide bar (71) to pass through; the locking member (75) comprises a flip block (751) rotatably arranged on one end of the strip plates of the telescopic rod (72) close to the opening, the bottom of the flip block (751) is provided with a latch (752), the surface of the slide bar (71) is provided with a plurality of adjustment holes (711) arranged along its length direction and corresponding to the latch (752), and the strip plate of the telescopic rod (72) is also provided with a through groove (753) for the latch (752) to flip and communicate with the adjustment hole (711).

7. A gate valve with magnetically controlled opening and closing function as claimed in claim 6, characterized in that: The guide column (73) is a cylindrical structure with a diameter equal to the width of the second slide groove (74). A hammer block (76) is provided at one end of the telescopic rod (72) where the two strip plates are connected.

8. A gate valve with magnetically controlled opening and closing function as claimed in claim 7, characterized in that: One end of the rotating rod (7) away from the sliding rod (71) is movably connected with a pull ring (77).

9. A gate valve with magnetically controlled opening and closing function as claimed in claim 7, characterized in that: The width of the hammer block (76) increases gradually from the inside to the outside, and the maximum width is greater than the aperture of the slot hole (641).

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