CN111692386B

CN111692386B - Fire extinguisher valve with spacing subassembly

Info

Publication number: CN111692386B
Application number: CN202010533767.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Yancheng Ourun Petrochemical Equipment Manufacturing Co ltd
Current assignee: Yancheng Ourun Petrochemical Equipment Manufacturing Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-11-12
Anticipated expiration: 2040-06-12
Also published as: CN111692386A

Abstract

The invention relates to the technical field of fire extinguisher valves, in particular to a fire extinguisher valve with a limiting assembly, which comprises an installation sleeve, a valve body structure, a pressing structure, a limiting structure, a positioning structure and a lubricating structure, wherein the installation sleeve is fixedly connected with the valve body structure; limiting structure's setting, can enough carry out limiting displacement to pressing the structure, prevent that the mistake from bumping the blowout, can also use when pressing the structure in needs, quick will shrink to pressing the spacing subassembly of structure, can guarantee the quick use of pressing the structure, location structure's setting, can press and need not press the effect that also can play the fire extinguishing always after pressing the structure, and can adjust needs spun size according to actual conditions, thereby can better pertinence put out a fire, reach better fire extinguishing effect, press the structure and can also act on lubricating structure when carrying out work, lubricating structure's work, can oil lubricated work to location structure, thereby can play the lubricated effect of rotating part when pressing, avoid rotating the laborious condition.

Description

Fire extinguisher valve with spacing subassembly

Technical Field

The invention relates to the technical field of fire extinguisher valves, in particular to a fire extinguisher valve with a limiting assembly.

Background

The fire extinguisher is a portable fire extinguishing tool. Chemical substances are placed in the fire extinguisher for saving and extinguishing fire. The fire extinguisher is one of common fire-proof facilities, is stored in public places or places where fire disasters may happen, and different fire extinguishers of different types are filled with different components and are specially designed for different fires. Care must be taken in use to avoid adverse effects and risks. Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are further classified into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves, etc. according to the material.

The valve for controlling the spraying of the fire extinguishing materials in the fire extinguisher bottle body is generally used when the valve is not used, the pressing component is limited and fixed by a pin shaft to prevent the spraying from being touched by mistake, but when the valve is used, the plastic ring needs to be removed firstly, then the pin shaft is drawn out, the operation is complex, the valve can be in confusion, the time is spent on the drawing pin shaft, the fire can be delayed to be eliminated, the property loss can be larger, and the valve can be pressed by hands all the time after being pressed, so that the valve is time-consuming and labor-consuming.

Disclosure of Invention

To address the problems in the prior art, the present invention provides a fire extinguisher valve with a position limiting assembly.

The technical scheme adopted by the invention for solving the technical problems is as follows: a fire extinguisher valve with a limiting assembly comprises an installation sleeve, a valve body structure, a pressing structure, a limiting structure, a positioning structure and a lubricating structure, wherein the valve body structure used for controlling the on-off of an object in a fire extinguisher bottle body is installed at one end of the installation sleeve which is used for connecting the valve with the fire extinguisher bottle body, and the pressing structure used for controlling the on-off of the valve body structure by pressing is installed at one end of the valve body structure; the structure comprises a pressing structure, a limiting structure, a positioning structure and a lubricating structure, wherein the limiting structure is arranged in the valve body structure and used for limiting the pressing structure, the positioning structure is arranged in the valve body structure and used for controlling the pressing angle of the pressing structure, and the lubricating structure is arranged in the valve body structure and used for lubricating the positioning structure.

Specifically, the valve body structure comprises a valve body, a fixed pipe, a pressure gauge, a sealing ring, a sealing plug, a spring seat, a first spring, a pressure rod, a sealing ring and a threaded hole, the valve body is arranged at one end of the mounting sleeve, the interior of the valve body is communicated with the interior of the mounting sleeve, the fixed pipe is fixed outside the valve body, one end of the fixed pipe, which is far away from the valve body, is connected with the pressure gauge through threads, the sealing ring which is in an annular structure is fixed in the valve body, the pressure rod is connected in the valve body in a sliding way, the sealing ring in an annular structure is fixed outside the pressure lever, one end of the pressure lever is fixed with the sealing plug, the spring seat is fixed at one end, deviating from the compression bar, of the sealing plug, the first spring is fixed between the spring seat and the mounting sleeve, and the threaded hole is formed in one end of the valve body.

Specifically, press the structure and include first clamp plate, pivot, second clamp plate and second spring, first clamp plate is fixed in the one end of valve body, the second clamp plate passes through the pivot with the valve body rotates to be connected, just the pivot with second clamp plate fixed connection, the pivot with the valve body rotates to be connected first clamp plate with the centre gripping is fixed between the second clamp plate the second spring.

Specifically, limit structure includes gag lever post, pull rod, jack, fixed block, third spring, release link and fourth spring, gag lever post sliding connection in the valve body be equipped with on the gag lever post the jack is the trapezium structure at the cross-section the gag lever post with the centre gripping is fixed between the valve body the fourth spring the one end of gag lever post is that the vertical relation is fixed the release link, just the release link with valve body sliding connection the inside sliding connection of valve body has the pull rod, just the one end of pull rod can be inserted the inside of jack the one end of pull rod is fixed the fixed block, just the fixed block with valve body sliding connection the fixed block with the centre gripping is fixed between the valve body the third spring.

Specifically, the positioning structure comprises a gear, a clamping column, a through hole, a slider, a fifth spring, a contact block, a mounting plate, a sixth spring and a button, the gear is fixed outside the rotating shaft, the gear is connected with the valve body in a rotating manner, the clamping column is connected with the valve body in a sliding manner, one end, close to the gear, of the clamping column is of a triangular structure, the through hole is arranged inside the clamping column, the slider is fixed at one end of the clamping column and is connected with the valve body in a sliding manner, the fifth spring is fixed between the slider and the valve body in a clamping manner, the contact block is connected with the contact block in a sliding manner inside the valve body, the contact block and one end, abutted against the clamping column, of the contact block are both of a wedge-shaped structure, the mounting plate is fixed at one end of the contact block, and the mounting plate is connected with the valve body in a sliding manner, the mounting panel with the centre gripping is fixed between the valve body the sixth spring conflict the piece and deviate from the one end of mounting panel is fixed the button.

Specifically, lubricating structure includes oil storage bin, piston, slide bar, advances oil pipe, goes out oil pipe and seventh spring, oil storage bin locates the inside of valve body oil storage bin's inside sliding connection has the piston with the centre gripping is fixed between the valve body the seventh spring the piston deviates from the one end of seventh spring is fixed the slide bar oil storage bin with the top of gear is passed through advance oil pipe intercommunication oil storage bin with the bottom of gear is passed through go out oil pipe intercommunication.

The invention has the beneficial effects that:

(1) the fire extinguisher valve with the limiting assembly can realize the on-off of the valve in a pressing mode by matching the valve body structure and the pressing structure, namely when fire is needed to be extinguished, the second pressing plate is pressed, as the second pressing plate is rotatably connected with the valve body through the rotating shaft, the bottom end of the second pressing plate can press the pressing rod which is slidably connected with the interior of the valve body, as the pressing rod is fixed with the sealing plug, the sealing plug can move, when the sealing plug does not block the air outlet any longer, the fire extinguishing object in the interior of the bottle body can be sprayed out from the threaded hole, so that the fire extinguishing effect is realized, when the second pressing plate is not pressed, the sealing plug and the sealing ring can be closed due to the elastic action of the first spring, so that the sealing effect is realized, the object is prevented from leaking, and as the sealing ring is fixed on the exterior of the pressing rod, through the arrangement of the sealing ring, the condition that the object leaks from the gap between the pressure rod and the valve body can be prevented.

(2) The fire extinguisher valve with the limiting component can limit the pressing structure and prevent the pressing structure from being sprayed out by mistake through the arrangement of the limiting structure, and can also quickly shrink the component for limiting the pressing structure when the pressing structure is required to be used, so that the quick use of the pressing structure can be ensured, namely when the fire extinguisher valve is not used, the pull rod is inserted into the jack on the limiting rod under the elastic force of the third spring, the limiting rod can limit the second pressing plate under the limiting effect of the pull rod, the pressing caused by the mistaken collision of the second pressing plate can be avoided, when the second pressing plate is required to be pressed, the pull rod is pulled out from the jack, the limiting effect on the limiting rod is not realized any more, the limiting rod can be accommodated into the valve body under the elastic force of the fourth spring, the process is quick and convenient, the effect of putting out a fire can play faster, reduces greatly and opens the time of putting out a fire to reduce the harm of the condition of a fire.

(3) The fire extinguisher valve with the limiting assembly can play a role in extinguishing fire without being pressed all the time after a pressing structure is pressed through the arrangement of the positioning structure, and can adjust the size of the fire to be sprayed according to actual conditions, so that the fire can be well extinguished in a targeted manner, and a better fire extinguishing effect is achieved, namely, when a second pressing plate is pressed, the rotating shaft rotates along with the second pressing plate, the gear is fixed outside the rotating shaft and can be clamped by the clamping column, the gear can only rotate clockwise under the action of the elastic force of the fifth spring, namely, when the second pressing plate is pressed, the second pressing plate can be fixed in position according to the pressing force, the second pressing plate is not required to be pressed all the time by hands, so that the effect of saving is achieved, the spraying amount can be accurately controlled, and a better fire extinguishing effect is achieved, when needs reset the second clamp plate, only need press the button, because the button is fixed with the conflict piece, and the one side that conflict piece and card post are contradicted is the wedge structure to can realize when pressing the button, conflict piece will block post jack-up, the card post is no longer spacing to the gear this moment, and the second clamp plate will reset this moment.

(4) According to the fire extinguisher valve with the limiting assembly, the pressing structure can act on the lubricating structure while working, the positioning structure can be oiled and lubricated by the lubricating structure, so that the lubricating effect of rotating parts during pressing can be achieved, the condition that the rotating part is hard to rotate is avoided, namely the sliding rod can be pressed while the second pressing plate presses, the piston is fixed at one end of the sliding rod, the lubricating oil in the oil storage bin can be injected into the gear and the rotating shaft from the oil inlet pipe while the piston presses downwards, the condition that the rotating shaft is blocked when the rotating shaft rotates can be avoided, and the lubricating oil in the cavity in the gear can be sucked into the oil storage bin through the oil outlet pipe for storage again for later use by the resetting effect of the seventh spring when the piston resets.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the overall structure of a preferred embodiment of the fire extinguisher valve with a stop assembly according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of the connection structure of the mounting sleeve and the valve body structure shown in FIG. 1;

FIG. 4 is an enlarged view of the portion B shown in FIG. 3;

FIG. 5 is a schematic view of a connection structure of the valve body and the position limiting structure shown in FIG. 1;

fig. 6 is a schematic structural view of the limiting structure shown in fig. 1.

In the figure: 1. the oil-gas separating valve comprises a mounting sleeve, 2, a valve body structure, 21, a valve body, 22, a fixed pipe, 23, a pressure gauge, 24, a sealing ring, 25, a sealing plug, 26, a spring seat, 27, a first spring, 28, a pressure rod, 29, a sealing ring, 29a, a threaded hole, 3, a pressing structure, 31, a first pressure plate, 32, a rotating shaft, 33, a second pressure plate, 34, a second spring, 4, a limiting structure, 41, a limiting rod, 42, a pull rod, 43, a jack, 44, a fixed block, 45, a third spring, 46, a reset rod, 47, a fourth spring, 5, a positioning structure, 51, a gear, 52, a clamping column, 53, a through hole, 54, a sliding block, 55, a fifth spring, 56, a collision block, 57, a mounting plate, 58, a sixth spring, 59, a button, 6, a lubricating structure, 61, an oil storage bin, 62, a piston, 63, a sliding rod, 64, an oil inlet pipe, 65, an oil outlet pipe, 66 and a seventh spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the fire extinguisher valve with a limiting assembly according to the present invention comprises an installation sleeve 1, a valve body structure 2, a pressing structure 3, a limiting structure 4, a positioning structure 5 and a lubricating structure 6, wherein the valve body structure 2 for controlling the on-off of an object inside a fire extinguisher bottle body is installed at one end of the installation sleeve 1 for connecting a valve with the fire extinguisher bottle body, and the pressing structure 3 for controlling the on-off of the valve body structure 2 by pressing is installed at one end of the valve body structure 2; the limiting structure 4 is arranged in the valve body structure 2 and used for limiting the pressing structure 3, the positioning structure 5 is arranged in the valve body structure 2 and used for controlling the pressing angle of the pressing structure 3, and the lubricating structure 6 is arranged in the valve body structure 2 and used for lubricating the positioning structure 5.

Specifically, the valve body structure 2 includes a valve body 21, a fixed pipe 22, a pressure gauge 23, a sealing ring 24, a sealing plug 25, a spring seat 26, a first spring 27, a pressure lever 28, a sealing ring 29 and a threaded hole 29a, the valve body 21 is installed at one end of the installation sleeve 1, the interior of the valve body 21 is communicated with the interior of the installation sleeve 1, the fixed pipe 22 is fixed on the exterior of the valve body 21, one end of the fixed pipe 22, which is far away from the valve body 21, is connected with the pressure gauge 23 through a thread, the sealing ring 24, which is in an annular structure, is fixed in the interior of the valve body 21, the pressure lever 28 is connected in a sliding manner in the interior of the valve body 21, the sealing ring 29, which is in an annular structure, is fixed on the exterior of the pressure lever 28, the sealing plug 25 is fixed at one end, which is far away from the pressure lever 28, of the sealing plug 25 is fixed with the spring seat 26, the first spring 27 is fixed between the spring seat 26 and the mounting sleeve 1, the threaded hole 29a is formed in one end of the valve body 21, the compression rod 28 is fixed to the sealing plug 25, the sealing plug 25 can move at the moment, when the sealing plug 25 does not block the air outlet, an extinguishment object inside the bottle body can be sprayed out from the threaded hole 29a at the moment, so that an extinguishment effect is achieved, when the second pressing plate 33 is not pressed, the sealing plug 25 and the sealing ring 24 can be closed due to the elastic force of the first spring 27, so that a sealing effect is achieved, leakage of the object is prevented, and due to the fact that the sealing ring 29 is fixed to the outer portion of the compression rod 28, the leakage of the object from a gap between the compression rod 28 and the valve body 21 can be prevented through the arrangement of the sealing ring 29.

Specifically, press structure 3 to include first clamp plate 31, pivot 32, second clamp plate 33 and second spring 34, first clamp plate 31 is fixed in the one end of valve body 21, second clamp plate 33 passes through pivot 32 with valve body 21 rotates to be connected, just pivot 32 with second clamp plate 33 fixed connection, pivot 32 with valve body 21 rotates to be connected first clamp plate 31 with the centre gripping is fixed between the second clamp plate 33 second spring 34 presses when needs put out a fire second clamp plate 33, because second clamp plate 33 passes through pivot 32 with valve body 21 rotates to be connected, consequently, sliding connection in can be pressed to the bottom of second clamp plate 33 inside the depression bar 28 of valve body 21.

Specifically, limit structure 4 includes gag lever post 41, pull rod 42, jack 43, fixed block 44, third spring 45, release link 46 and fourth spring 47, gag lever post 41 sliding connection in valve body 21 be equipped with on gag lever post 41 jack 43 is trapezium structure at the cross-section gag lever post 41 with the centre gripping is fixed between the valve body 21 fourth spring 47 the one end of gag lever post 41 is the vertical relation fixed release link 46, just release link 46 with valve body 21 sliding connection the inside sliding connection of valve body 21 has pull rod 42, just the one end of pull rod 42 can be inserted the inside of jack 43 the one end of pull rod 42 is fixed block 44, just fixed block 44 with valve body 21 sliding connection the fixed block 44 with the centre gripping is fixed between the valve body 21 third spring 45, when the valve is not in use, because the pull rod 42 is inserted into the jack 43 on the limit rod 41 under the elastic action of the third spring 45, at the moment, the limit rod 41 can be used for limiting the second pressing plate 33 under the limiting action of the pull rod 42, the pressing caused by the mistaken collision of the second pressing plate 33 can be avoided, when the second pressing plate 33 needs to be pressed, only the pull rod 42 needs to be pulled, at the moment, the pull rod 42 is pulled out from the jack 43, and is not needed to be limited by the limit rod 41, at the moment, the limit rod 41 can be contained into the valve body 21 under the elastic action of the fourth spring 47, the process is fast and convenient, the fire extinguishing effect can be played faster, the time for opening and extinguishing the fire is greatly shortened, and the hazard of the fire is reduced.

Specifically, the positioning structure 5 includes a gear 51, a clamping column 52, a through hole 53, a slider 54, a fifth spring 55, an abutting block 56, a mounting plate 57, a sixth spring 58 and a button 59, the gear 51 is fixed outside the rotating shaft 32, the gear 51 is rotatably connected with the valve body 21, the clamping column 52 is slidably connected inside the valve body 21, one end of the clamping column 52 close to the gear 51 is of a triangular structure, the through hole 53 is arranged inside the clamping column 52, the slider 54 is fixed at one end of the clamping column 52, the slider 54 is slidably connected with the valve body 21, the fifth spring 55 is clamped and fixed between the slider 54 and the valve body 21, the abutting block 56 is slidably connected inside the valve body 21, the abutting block 56 is of a wedge-shaped structure with one end of the clamping column 52, the mounting plate 57 is fixed at one end of the abutting block 56, just the mounting panel 57 with valve body 21 sliding connection mounting panel 57 with the centre gripping is fixed between the valve body 21 the sixth spring 58 the contact block 56 deviates from the one end of mounting panel 57 is fixed the button 59 the outside of pivot 32 is fixed gear 51, just gear 51 can by the card post 52 block, through the spring action of fifth spring 55, can guarantee that gear 51 only can rotate clockwise, press when second clamp plate 33, second clamp plate 33 can carry out the rigidity according to the pressing force degree size, need not press the second clamp plate 33 all the time with the hand to can play the effect of province's power, can also accurate control spun volume, reach better effect of putting out a fire, need with when needing to reset second clamp plate 33, only need press the button 59, because the button 59 with contact block 56 is fixed, and one surface of the abutting block 56 abutting against the clamping column 52 is of a wedge-shaped structure, so that when the button 59 is pressed, the abutting block 56 jacks up the clamping column 52, at the moment, the clamping column 52 does not limit the gear 51 any more, and at the moment, the second pressing plate 33 is reset.

Specifically, the lubricating structure 6 includes an oil storage bin 61, a piston 62, a sliding rod 63, an oil inlet pipe 64, an oil outlet pipe 65 and a seventh spring 66, the oil storage bin 61 is disposed inside the valve body 21, the piston 62 is slidably connected inside the oil storage bin 61, the seventh spring 66 is clamped and fixed between the piston 62 and the valve body 21, the sliding rod 63 is fixed at one end of the piston 62 away from the seventh spring 66, the oil storage bin 61 is communicated with the top end of the gear 51 through the oil inlet pipe 64, the oil storage bin 61 is communicated with the bottom end of the gear 51 through the oil outlet pipe 65, the sliding rod 63 can be pressed while the second pressing plate 33 is pressed, and since the piston 62 is fixed at one end of the sliding rod 63, the lubricating oil inside the oil storage bin 61 can be injected into the gear 51 and the rotating shaft 32 from the oil inlet pipe 64 while the piston 62 is pressed, therefore, the situation that the rotating shaft 32 is blocked when the rotating shaft 32 is rotated can be avoided, and the lubricating oil in the cavity inside the gear 51 can be sucked into the oil storage bin 61 through the oil outlet pipe 65 for storage again for later use through the resetting action of the seventh spring 66 when the piston 62 is reset.

When the fire extinguisher is used, the mounting sleeve 1 is firstly connected with a bottle body, then the spray pipe is connected with the threaded hole 29a, when fire extinguishing is needed, the second pressure plate 33 is pressed, and the bottom end of the second pressure plate 33 can press the pressure rod 28 which is connected with the inside of the valve body 21 in a sliding manner because the second pressure plate 33 is rotatably connected with the valve body 21 through the rotating shaft 32; because the press rod 28 is fixed with the sealing plug 25, the sealing plug 25 can move at the moment, when the sealing plug 25 no longer blocks the air outlet, the fire extinguishing object in the bottle body can be sprayed out from the threaded hole 29a at the moment, so that the fire extinguishing effect is achieved, when the second pressing plate 33 is not pressed, the sealing plug 25 and the sealing ring 24 can be closed due to the elastic force of the first spring 27, so that the sealing effect is achieved, the object leakage is prevented, and because the sealing ring 29 is fixed outside the press rod 28, the situation that the object leaks from the gap between the press rod 28 and the valve body 21 can be prevented through the arrangement of the sealing ring 29; when the valve is not used, the pull rod 42 is inserted into the insertion hole 43 on the limit rod 41 under the elastic action of the third spring 45, at the moment, the limit rod 41 can limit the second pressure plate 33 under the limiting action of the pull rod 42, the pressing caused by the mistaken collision of the second pressure plate 33 can be avoided, when the second pressure plate 33 needs to be pressed, only the pull rod 42 needs to be pulled, at the moment, the pull rod 42 is pulled out of the insertion hole 43, the limit rod 41 is not limited any more, at the moment, the limit rod 41 can be accommodated into the valve body 21 under the elastic action of the fourth spring 47, the process is rapid and convenient, the fire extinguishing effect can be achieved more rapidly, the time for opening and extinguishing the fire is greatly shortened, and the hazard of the fire is reduced; the gear 51 is fixed outside the rotating shaft 32, the gear 51 can be clamped by the clamping column 52, and through the elastic action of the fifth spring 55, the gear 51 can only rotate clockwise, that is, when the second pressing plate 33 is pressed, the second pressing plate 33 can be fixed in position according to the pressing force, the second pressing plate 33 does not need to be pressed all the time by hands, so that the power saving effect can be achieved, the sprayed amount can be accurately controlled, the better fire extinguishing effect can be achieved, when the second pressing plate 33 needs to be reset, only the button 59 needs to be pressed, as the button 59 is fixed with the contact block 56, and the contact block 56 and the surface of the contact block 52 which is in contact are in a wedge-shaped structure, the contact block 56 can jack up the clamping column 52 when the button 59 is pressed, and at this time the clamping column 52 does not limit the gear 51 any more, at this time, the second pressing plate 33 is reset; the second clamp plate 33 can press the sliding rod 63, because one end of the sliding rod 63 is fixed to the piston 62, the piston 62 is pressed down, and simultaneously, the lubricating oil in the oil storage bin 61 can be injected into the gear 51 and the rotating shaft 32 from the oil inlet pipe 64, so that the situation that the rotating shaft 32 is blocked can be avoided when the rotating shaft 32 rotates, and through the resetting action of the seventh spring 66, when the piston 62 resets, the lubricating oil in the cavity inside the gear 51 can be sucked into the oil storage bin 61 through the oil outlet pipe 65 for storage again for later use.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fire extinguisher valve with spacing subassembly which characterized in that: the fire extinguisher bottle body structure comprises an installation sleeve (1), a valve body structure (2), a pressing structure (3), a limiting structure (4), a positioning structure (5) and a lubricating structure (6), wherein the valve body structure (2) used for controlling the on-off of an object in the fire extinguisher bottle body is installed at one end of the installation sleeve (1) which is used for connecting a valve with the fire extinguisher bottle body, and the pressing structure (3) used for controlling the on-off of the valve body structure (2) in a pressing mode is installed at one end of the valve body structure (2); the limiting structure (4) used for limiting the pressing structure (3) is arranged in the valve body structure (2), the positioning structure (5) used for controlling the pressing angle of the pressing structure (3) is arranged in the valve body structure (2), and the lubricating structure (6) used for lubricating the positioning structure (5) is arranged in the valve body structure (2);

the valve body structure (2) comprises a valve body (21), a fixed pipe (22), a pressure gauge (23), a sealing ring (24), a sealing plug (25), a spring seat (26), a first spring (27), a pressure rod (28), a sealing ring (29) and a threaded hole (29 a), the valve body (21) is installed at one end of the mounting sleeve (1), the valve body (21) is internally communicated with the mounting sleeve (1), the fixed pipe (22) is fixed outside the valve body (21), one end of the fixed pipe (22) deviating from the valve body (21) is in threaded connection with the pressure gauge (23), the sealing ring (24) which is of an annular structure is fixed inside the valve body (21), the pressure rod (28) is slidably connected inside the valve body (21), and the sealing ring (29) which is of an annular structure is fixed outside the pressure rod (28), the sealing plug (25) is fixed at one end of the compression rod (28), the spring seat (26) is fixed at one end, away from the compression rod (28), of the sealing plug (25), the first spring (27) is fixed between the spring seat (26) and the mounting sleeve (1), and the threaded hole (29 a) is formed in one end of the valve body (21);

the pressing structure (3) comprises a first pressing plate (31), a rotating shaft (32), a second pressing plate (33) and a second spring (34), the first pressing plate (31) is fixed at one end of the valve body (21), the second pressing plate (33) is rotatably connected with the valve body (21) through the rotating shaft (32), the rotating shaft (32) is fixedly connected with the second pressing plate (33), the rotating shaft (32) is rotatably connected with the valve body (21), and the second spring (34) is clamped and fixed between the first pressing plate (31) and the second pressing plate (33);

the limiting structure (4) comprises a limiting rod (41), a pull rod (42), a jack (43), a fixing block (44), a third spring (45), a reset rod (46) and a fourth spring (47), the limiting rod (41) is connected to the valve body (21) in a sliding mode, the jack (43) is arranged on the limiting rod (41), the cross section of the limiting rod (41) is of a trapezoidal structure, the fourth spring (47) is clamped and fixed between the limiting rod (41) and the valve body (21), the reset rod (46) is fixed at one end of the limiting rod (41) in a vertical relation, the reset rod (46) is connected with the valve body (21) in a sliding mode, the pull rod (42) is connected to the valve body (21) in a sliding mode, one end of the pull rod (42) can be inserted into the jack (43), the fixing block (44) is fixed at one end of the pull rod (42), the fixed block (44) is connected with the valve body (21) in a sliding mode, and the third spring (45) is clamped and fixed between the fixed block (44) and the valve body (21);

the positioning structure (5) comprises a gear (51), a clamping column (52), a through hole (53), a sliding block (54), a fifth spring (55), a butting block (56), a mounting plate (57), a sixth spring (58) and a button (59), the gear (51) is fixed outside the rotating shaft (32), the gear (51) is rotatably connected with the valve body (21), the clamping column (52) is slidably connected inside the valve body (21), one end, close to the gear (51), of the clamping column (52) is of a triangular structure, the through hole (53) is arranged inside the clamping column (52), the sliding block (54) is fixed at one end of the clamping column (52), the sliding block (54) is slidably connected with the valve body (21), and the fifth spring (55) is clamped and fixed between the sliding block (54) and the valve body (21), the inside sliding connection of valve body (21) has conflict piece (56), just conflict piece (56) with the one end that card post (52) contradicts is wedge structure the one end of conflict piece (56) is fixed mounting panel (57), just mounting panel (57) with valve body (21) sliding connection mounting panel (57) with the centre gripping is fixed between valve body (21) sixth spring (58) conflict piece (56) deviate from the one end of mounting panel (57) is fixed button (59).

2. A fire extinguisher valve with a limit assembly as claimed in claim 1, wherein: lubricating structure (6) are including oil storage bin (61), piston (62), slide bar (63), advance oil pipe (64), go out oil pipe (65) and seventh spring (66), oil storage bin (61) are located the inside of valve body (21) the inside sliding connection of oil storage bin (61) has piston (62) with the centre gripping is fixed between valve body (21) seventh spring (66) piston (62) deviate from the one end of seventh spring (66) is fixed slide bar (63), oil storage bin (61) with the top of gear (51) is passed through advance oil pipe (64) intercommunication, oil storage bin (61) with the bottom of gear (51) is passed through go out oil pipe (65) intercommunication.