CN218152367U

CN218152367U - Combined pressure relief valve and inflatable body

Info

Publication number: CN218152367U
Application number: CN202222430924.8U
Authority: CN
Inventors: 王之岳
Original assignee: Oriental Recreational Products Shanghai Co Ltd
Current assignee: Oriental Recreational Products Shanghai Co Ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2022-12-27
Anticipated expiration: 2032-09-14
Also published as: WO2024055638A1

Abstract

The utility model discloses a combination relief valve for first object, first object have gas chamber, and combination relief valve includes: the valve body is provided with a first passage which is used for being communicated with the gas chamber; the valve core is arranged in the first channel and can move relative to the first channel so as to enable the first channel to be communicated or disconnected with the outside; a pressure relief assembly detachably connected with the valve body; the pressure relief assembly comprises a second channel and an elastic moving piece, and the second channel is communicated with the outside; the elastic moving piece can move relative to the second channel so as to enable the second channel to be communicated with or disconnected from the first channel; when the second channel is communicated with the first channel, the gas cavity can be deflated through the combined pressure relief valve. The utility model discloses can make pressure release subassembly dismouting and change more conveniently. The utility model also provides an aerify the body.

Description

Combined pressure relief valve and inflatable body

Technical Field

The utility model relates to a valve field, in particular to combination relief valve and inflatable body.

Background

With the accelerated pace of life and the higher working pressure, people need more leisure ways to increase the pleasure of life. For example, the massage water pool with massage and leisure functions can make people relax and enjoy life when bathing, thereby being popular among people. And participate in wide water skiing sports of crowds, wherein water skiing is coordinated sports of all parts of the whole body, and gradually becomes a very popular cross sports item for water relaxation and entertainment. The inflatable aquaplane is a commonly used aquaplane in aquaplaning activities and is popular with aquaplane enthusiasts because of its durability, storage, carrying and transportation. However, in case of inflatable products like massage pools, inflatable aquaboards and the like, when the temperature of gas rises due to exposure to sunlight and the like, the volume of the gas in the cavity is unchanged, and the number of molecules impacting the walls of the pool in unit time is increased, so that the average acting force impacting the walls of the pool is increased, the pressure of the gas in the inner cavity of the inflatable product is increased, and the appearance and the service life of the inflatable product are affected.

In order to reduce the gas pressure in an inflation cavity of an inflatable product or enable an inflatable body to deflate so as to be convenient to carry, an air release valve is arranged on the inflatable product, and the existing air release valve has the problems that an air release assembly is inconvenient to assemble and disassemble and is inconvenient to replace after being damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the present release valve has the subassembly that loses heart and is not convenient for install and remove and damage the back and be not convenient for change. The utility model provides a combined pressure relief valve, its disappointing subassembly is convenient for the dismouting to be changed.

In order to solve the technical problem, the utility model discloses an embodiment discloses a combination relief valve for first object, first object have gas cavity, and the combination relief valve includes:

a valve body having a first passage for communicating with the gas chamber;

the valve core is arranged in the first channel and can move relative to the first channel to switch between a first position and a second position; when the valve core is positioned at the first position, the first channel is in a communication state; when the valve core is positioned at the second position, the first channel is in a sealing state;

the pressure relief assembly is detachably connected with the valve body, and when the pressure relief assembly is connected with the valve body, the valve core is stressed to be positioned at a first position; when the pressure relief assembly is separated from the valve body, the valve core loses the external force to be positioned at the second position;

the pressure relief assembly comprises a second channel and an elastic moving piece, and the second channel is communicated with the outside; the elastic moving piece can move relative to the second channel to switch between a third position and a fourth position; when the elastic moving piece is positioned at the third position, the second channel is communicated with the first channel; when the elastic moving piece is positioned at the fourth position, the second channel is disconnected with the first channel;

when the second channel is communicated with the first channel, the gas cavity can be deflated through the combined pressure relief valve.

Adopt above-mentioned technical scheme, the pressure release subassembly is connected with the valve body with detachably mode, can make pressure release subassembly dismouting and change more conveniently.

As a specific implementation mode, the elastic moving piece can positively move relative to the second channel under the action of external force so as to be located at a third position; or the elastic moving part can move reversely relative to the second channel under the action of losing the external force so as to be positioned at the fourth position.

As a specific embodiment, the external force acting on the resilient moving member includes a gas pressure in the gas chamber.

As a specific embodiment, the valve body comprises a clamping portion, and the clamping portion is arranged in the first channel; the pressure relief assembly comprises a valve cover, a clamping jaw is arranged at one end of the valve cover along the axial direction, the valve cover is inserted into the first channel along the axial direction, and the clamping jaw can be clamped with the clamping portion along the axial direction after the valve cover rotates around the axis of the valve cover, so that the valve cover is connected with the valve body.

As a specific implementation manner, the other end of the valve cover along the axial direction is provided with an accommodating cavity, and the elastic moving piece is arranged in the accommodating cavity; the elastic moving piece divides the containing cavity into a first cavity and a second cavity along the axial direction, a first through hole is formed in the valve cover, the first cavity is communicated with the first channel through the first through hole, and the second cavity is communicated with the outside;

the second channel comprises an air channel inlet and an air channel outlet, and the air channel outlet is communicated with the second cavity; when the elastic moving piece is positioned at the third position, the inlet of the air passage is communicated with the first cavity; when the elastic moving piece is positioned at the fourth position, the air passage inlet is communicated with the second cavity.

As a specific implementation mode, the pressure relief assembly further comprises a vent shaft arranged in the accommodating cavity, the vent shaft extends along the axial direction and penetrates through the elastic moving part, and a second channel is arranged on the vent shaft.

In one embodiment, the vent shaft is made of metal.

As a specific embodiment, the valve cover further comprises a mounting seat, one end of the mounting seat protrudes out of the end face of the accommodating cavity connected with the clamping jaw along the axial direction, the other end of the mounting seat extends into the accommodating cavity, and the ventilation shaft is connected with the other end of the mounting seat;

after the clamping jaw is clamped with the clamping part, one end of the mounting seat is abutted against the end part of the valve core, so that the valve core is located at the first position.

As a specific implementation manner, when the elastic moving piece is located at the fourth position, the lower end surface of the elastic moving piece is attached to the upper end surface of the mounting seat along the axial direction.

As a specific embodiment, the pressure relief assembly further comprises:

the valve cap is connected with the other end of the valve cap, the valve cap covers the second cavity along the axial direction, and the valve cap clamp the elastic moving piece along the axial direction;

the supporting seat is positioned in the second cavity and is connected with the elastic moving piece;

and one end of the second elastic piece is abutted against the supporting seat, and the other end of the second elastic piece is abutted against the valve cap.

As a specific implementation mode, the elastic moving piece is provided with a positioning rod, the supporting seat is provided with a positioning hole, and the positioning rod can penetrate through the positioning hole along the axial direction.

As a specific embodiment, a plurality of second through holes are formed in the end face of the valve cap, and the second cavity is communicated with the outside through the second through holes.

As a specific embodiment, the valve core can reversely move relative to the first channel under the action of external force so as to be in the first position; or the valve core can move positively relative to the first channel after losing the external force so as to be in the second position.

As a specific embodiment, the external force acting on the valve core includes a force applied by a user and a pressing force of the pressure relief assembly.

As a specific embodiment, the valve body comprises a connecting part, the connecting part is arranged in the first channel, and the connecting part is connected with the inner side wall of the first channel through a clamping part; the valve core axially penetrates through the connecting part, and a gap is formed between the valve core and the connecting part along the circumferential direction;

the combination relief valve still includes:

the valve core cap is clamped with the end part of the valve core penetrating through the connecting part;

and one end of the first elastic piece is abutted with the valve core cap, and the other end of the first elastic piece is abutted with the connecting part.

As a specific embodiment, the valve further comprises a first sealing element arranged on the valve core;

when the valve core is positioned at the first position, the first sealing element is separated from one end of the first channel along the axial direction, so that the first channel is in a conducting state;

when the valve core is located at the second position, the first sealing element is attached to one end of the first channel along the axial direction, so that the first channel is in a sealing state.

As a specific embodiment, the spool includes:

the valve core rod penetrates through the connecting part along the axial direction;

the clamping end is arranged at the end part of the valve core rod penetrating through the connecting part, and protrudes out of the surface of the valve core rod along the circumferential direction; the valve core is clamped with the valve core cap through the clamping end;

and the opening extends for a certain distance along the axial direction of the valve core rod until the opening is communicated with the clamping end, and the opening is communicated with the valve core rod along the radial direction of the valve core rod.

As a specific embodiment, the valve core further comprises at least two clamping blocks which protrude from the surface of the valve core rod along the radial direction of the valve core rod, and the clamping blocks are arranged at intervals along the circumferential direction of the valve core rod;

the side wall of the connecting part is provided with notches which extend along the axial direction and are abdicating correspondingly to the clamping blocks, and when the valve core is positioned at the second position, the clamping blocks are positioned in the abdicating notches correspondingly;

the valve core moves relative to the first channel along the axial direction, so that after each clamping block moves along the axial direction to be separated from each abdicating notch, the valve core can rotate along the circumferential direction, so that each clamping block rotates to be clamped with the end face of the connecting part along the axial direction, and the first channel is in a conduction state.

As a specific implementation manner, the end surface of the connecting portion is provided with clamping grooves corresponding to the clamping blocks, and the clamping blocks can be clamped with the clamping grooves, so that the valve core is located at the first position.

A gas-filled body comprises a gas chamber and the combined pressure relief valve.

Drawings

Fig. 1 shows an overall structural schematic diagram of a combined pressure relief valve according to an embodiment of the present invention;

fig. 2 shows an exploded view of a combined pressure relief valve according to an embodiment of the present invention;

fig. 3 shows a cross-sectional view of a combined pressure relief valve according to an embodiment of the invention;

fig. 4 shows a first schematic structural diagram of a valve body according to an embodiment of the present invention;

fig. 5 shows a schematic structural diagram ii of a valve body according to an embodiment of the present invention;

figure 6 shows a partial cross-sectional view of a combined pressure relief valve according to an embodiment of the invention;

fig. 7 shows a first schematic structural diagram of a valve cover according to an embodiment of the present invention;

fig. 8 shows a schematic structural diagram ii of a valve cover according to an embodiment of the present invention;

fig. 9 shows a schematic structural view of a valve cartridge according to an embodiment of the present invention;

fig. 10 shows a schematic structural view of a valve core cap according to an embodiment of the present invention;

fig. 11 shows a schematic view of the assembly of the valve cartridge and the valve cartridge cap according to the embodiment of the present invention;

in the figure:

1-valve body, 11-body, 111-first channel, 112-connecting part, 1121-clamping groove, 1122-abdicating notch, 113-clamping part, 2-valve core component, 21-valve core, 211-valve core end plate, 212-valve core rod, 2121-notch, 2122-clamping end head, 2123-first clamping side wall, 2124-second clamping side wall, 213-clamping block, 214-mounting groove, 22-valve core cap, 221-clamping hole, 2211-clamping hole side wall, 23-first elastic piece, 24-first sealing piece, 3-pressure relief component, 31-valve cover, 311-containing cavity, 3111-gripping part, 312-clamping cylinder, 3121-clamping claw, 3122-hooking groove, 3123-notch, 313-mounting seat, 3131-mounting hole, 314-first through hole, 315-first cavity, 316-second cavity, 32-vent shaft, 321-second channel, 3211-air channel inlet, 3212-air channel, 3212-outlet, 33-positioning rod, 331-elastic connecting rod, 331-second connecting rod, 331-elastic piece, 361-second connecting piece, 361-dust-sealing ring, 361-second connecting piece, 361-third connecting piece, and third connecting piece.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended to limit the features of the invention to that embodiment. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are included to provide a thorough understanding of the invention. The invention may be practiced without these particulars. Moreover, some of the specific details are omitted from the description so as not to obscure or obscure the focus of the present invention. It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the present invention is directed must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the present embodiment can be understood as specific cases by those of ordinary skill in the art.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a combined pressure relief valve for a first object (not shown in the figure), wherein the first object comprises a gas chamber. Illustratively, the first object is an inflatable body, such as a massage sink, inflatable ski or other similar inflatable product having a gas chamber. Referring to fig. 1 to 3, the combined relief valve includes a valve body 1, a spool assembly 2 including a spool 21, and a relief assembly 3. Further, a first passage 111 is provided in the valve body 1, the first passage 111 being for communication with the gas chamber.

The valve core assembly 2 comprises a valve core 21, and the valve core 21 is movably arranged in the first channel 111 of the valve body 1 and can move relative to the first channel 111 to switch between a first position and a second position. When the valve core 21 is located at the first position, the first passage 111 can be communicated with the outside, that is, the first ventilation path is in a conduction state; when the spool 21 is in the second position, the first passage 111 is in a sealed state, that is, the first vent path is in a sealed state.

Referring to fig. 3, the pressure relief assembly 3 is detachably connected to the valve body 1, and when the pressure relief assembly 3 is connected to the valve body 1, the valve core 21 is forced to be located at the first position, specifically, the pressure relief assembly 3 abuts against the valve core 21, so that the valve core 21 is located at the first position. When the pressure relief assembly 3 is separated from the valve body 1, the valve core 21 loses the external force to be located at the second position. That is to say, after the pressure relief assembly 3 is clamped with the valve body 1, the pressure relief assembly 3 acts on the valve core 21 to keep the valve core 21 at the first position all the time, so that the first ventilation path is in a conduction state.

With reference to fig. 3, a second passage 321 is provided in the pressure relief assembly 3, and the second passage 321 is communicated with the outside. The pressure relief assembly 3 further comprises a resilient moving member 33, the resilient moving member 33 being movable in a first direction (shown as X in fig. 1 and 3) relative to the second passage 321 under the action of an external force to switch between a third position and a fourth position. When the elastic moving part 33 is located at the third position, the second passage 321 is communicated with the first passage 111; when the resilient moving member 33 is located at the fourth position, the second channel 321 is disconnected from the first channel 111, i.e. the second air passage is in a sealed state. The external force applied to the resilient moving member includes the gas pressure in the gas chamber, and specifically, since the first ventilation path is in the conducting state, the gas in the gas chamber is introduced from the first ventilation path and contacts with the lower end surface of the resilient moving member 33 along the first direction (the gas flow path is shown as the gas flow arrow group a in fig. 3), and when the gas pressure rises to a certain set value, the resilient moving member 33 is pushed to move forward (shown as the direction F in fig. 3).

Exemplarily, the first and second vent paths refer to paths through which gas circulates in the valve body 1 and the pressure relief assembly 3, respectively. The first position and the third position may be respectively a certain position for bringing the first channel and the second channel 321 into a conductive state, or may be specific position intervals for bringing the first channel 111 and the second channel 321 into a conductive state. In the present embodiment, no limitation is made.

When the first ventilation path and the second ventilation path are both in a conducting state, the gas cavity can be deflated through the combined pressure relief valve. Specifically, when the gas pressure in the gas chamber rises due to some reason such as temperature, the elastic moving member 33 is pushed to move to the third position in the forward direction (indicated by F in fig. 3) relative to the second passage 321 under the gas pressure, so that the second passage 321 is communicated with the first passage 111, that is, the first ventilation path and the second ventilation path are in a conducting state. The gas in the gas cavity enters the first ventilation path from the end, communicated with the gas cavity, of the valve body 1, enters the second ventilation path, flows through the second channel 321, and is communicated to the outside of the gas cavity through the second channel 321, so that the pressure relief of the gas cavity is realized, and the gas pressure in the gas cavity is prevented from being increased to damage the gas cavity.

Further, the valve body 21 can move reversely (as indicated by G in fig. 3) relative to the first passage 111 by an external force, i.e., toward the end of the first passage 111 communicating with the gas chamber, so that the valve body 21 is in the first position and the first vent path is in a communicating state. Or the valve core 21 can move relative to the first channel in the positive direction (as shown in the direction F in fig. 3) after the external force is lost, i.e. towards the end of the first channel 111 away from the gas chamber, so as to be in the second position, so that the first ventilation path is sealed and the gas in the gas chamber is prevented from overflowing. Illustratively, the external force acting on the valve core 21 includes a force applied by a user and a pressing force of the relief assembly 3 against the valve core 21 after being mounted on the valve body 1.

Exemplarily, when the pressure relief assembly 3 is separated from the valve body 1, the valve element 21 can be located at the second position by an external force, so that the first ventilation path is in a conduction state, and the gas in the first object gas chamber can be rapidly exhausted, thereby facilitating the storage or carrying and transportation of the first object.

Above technical scheme can realize effective pressure release to aerifing the body, and pressure release subassembly 3 is connected with valve body 1 through the mode of joint, and dismouting and the change of realization pressure release subassembly 3 that can be convenient promote dismouting efficiency. When pressure release subassembly 3 and valve body separation, the case can also switch on gas chamber and external mutually, realizes gas chamber and external gas flow to satisfy the demand of scenes such as quick pressure release.

Referring to fig. 3, a connecting wire 43 is arranged between the pressure relief assembly 3 and the valve body 1, one end of the connecting wire 43 is connected with the pressure relief assembly 3, and the other end of the connecting wire 43 is connected with the valve body 1, so as to prevent the pressure relief assembly 3 from dropping off when being separated from the valve body 1.

Referring to fig. 4 and 5, with the aid of fig. 3, the valve body 1 comprises a body 11, the body 11 extending in a first direction, i.e. in the axial direction of the valve body 1. The first passage 111 extends in a first direction and is disposed in the body 11. The valve body 1 further includes a connecting portion 112 and a clamping portion 113, the connecting portion 112 is an annular cylinder, and is disposed in the first passage 111 and coaxial with the first passage 111. The joint portion 113 is provided with two at least, and each joint portion 113 sets up in the lateral wall of connecting portion 112 along the circumference interval, and specifically, the one end of each joint portion 113 is connected with the lateral wall of connecting portion 112, and the other end is connected with the inside wall of first passageway 111. That is, the connecting portion 112 is tightly connected to the inner sidewall of the first passage 111 by the respective snap portions 113. The engaging portion 113 is engaged with the pressure relief unit 3.

Referring to fig. 7 and 8, with reference to fig. 3 and 6, the pressure relief assembly 3 includes a valve cover 31, one end of the valve cover 31 along the first direction is provided with a receiving cavity 311, the other end of the valve cover 31 along the first direction is provided with a clamping cylinder 312, one end of the clamping cylinder 312 is connected to an end surface of the receiving cavity 311, the other end of the clamping cylinder 312 is provided with hook-shaped claws 3121, the claws 3121 correspond to the clamping portions 113 in number, and the claws 3121 are spaced apart along a circumferential direction of the clamping cylinder 312. Each claw 3121 includes a circumferentially extending hook groove 3122, and a notch 3123 is provided between adjacent claws 3121, through which the notch 3123 can axially enter the hook groove 3122.

When the pressure relief assembly 3 is connected with the valve body 1, the valve cover 31 is inserted into the first channel 111 along the first direction, the clamping portion 113 penetrates through the notches 3123 between the two adjacent clamping claws 3121, the positions corresponding to the hook grooves 3122 of the corresponding clamping claws 3121 are raised, then the valve cover 31 rotates around the self axis (namely, the circumferential direction of the clamping cylinder 312), the hook grooves 3122 move circumferentially relative to the clamping portion 113, so that the clamping portion 113 slides into the corresponding hook grooves 3122, namely, in the first direction, the clamping portion 113 is located in the hook grooves 3122 of the clamping claws 3121, the valve cover 31 can be prevented from being separated from the valve body 1 along the first direction, and then the pressure relief assembly 3 is connected with the valve body 1.

Further, the outer surface of the accommodating cavity 311 is provided with concave-convex lines to form a gripping portion 3111, the gripping portion 3111 is convenient for a user to grip the rotary valve cover 31, so that the valve cover 31 is clamped with or separated from the valve body 1.

Referring to fig. 6, the elastic moving member 33 is disposed in the accommodating cavity 311, and the edge of the elastic moving member 33 along the circumferential direction is connected with the valve cover 31 in a sealing manner. In the first direction, the elastic moving member 33 divides the accommodating chamber of the valve cover 31 into a first cavity 315 and a second cavity 316 which are isolated from each other. The valve cap 31 is provided with a first through hole 314 (as shown in fig. 6 and 7) to communicate the first cavity 315 with the first passage 111, and to communicate the second cavity 316 with the outside. Specifically, the spatial sizes of the first cavity 315 and the second cavity 316 vary with the movement of the resilient moving member 33 in the first direction.

Referring to fig. 6, with reference to fig. 2 and fig. 3, further, the pressure relief assembly 3 further includes a vent shaft 32, the vent shaft 32 is disposed in the accommodating cavity 311, and the vent shaft 32 extends along the first direction and extends into the second cavity 316 through the elastic moving member 33. The second channel 321 is disposed on the ventilation shaft 32, the second channel 321 extends along the first direction and penetrates through one end of the ventilation shaft 32, the second channel 321 includes a gas channel inlet 3211 and a gas channel outlet 3212, and the gas channel inlet 3211 penetrates through a sidewall of the ventilation shaft 32 in a radial direction; the air passage outlet 3212 is located on an end surface of the other end of the ventilation shaft 32 in the axial direction, and the air passage outlet 3212 communicates with the second cavity 316. When the flexible moving member 33 is located at the third position, the air duct inlet 3211 is communicated with the first cavity 315; when the flexible moving member 33 is located at the fourth position, the air duct inlet 3211 is in communication with the second chamber 316.

That is, the elastic moving member 33 can move upward (forward direction) or downward (reverse direction) relative to the ventilation shaft 32 in the first direction under the action of the gas pressure of the gas chamber to be located at the third position or the fourth position; when the elastic moving element 33 is located at the third position, the air duct inlet 3211 is located in the first cavity 315, and is communicated with the first cavity 315, that is, the first channel 111, at this time, the first ventilation path and the second ventilation path are both in a communication state, so that the air in the air chamber can be communicated with the outside through the first ventilation path and the second ventilation path, and the air leakage effect of the air chamber is achieved. When the flexible moving member 33 is located at the fourth position, the air channel inlet 3211 is located in the second cavity 316 (as shown in fig. 6), the connection between the flexible moving member 33 and the ventilation shaft 32 is hermetically connected, the second channel 321 is isolated from the first channel 111, that is, the second air channel is in a sealed state, and then the air cavity is isolated from the outside, and the pressure maintaining is performed after the air leakage is stopped.

Furthermore, the ventilation shaft 32 is made of metal, so that the ventilation shaft 32 has certain smoothness and rigidity, and the elastic moving member 33 can slide relative to the ventilation shaft 32 conveniently. Illustratively, the vent shaft 32 is stainless steel.

Referring to fig. 6 and 7, with reference to fig. 3, a mounting seat 313 is disposed in the bonnet 31, and along a first direction, one end of the mounting seat 313 protrudes out of an end surface where the receiving cavity 311 and the latch 3121 are connected, the other end of the mounting seat 313 extends into the receiving cavity 311, and the other end of the mounting seat 313 is provided with a mounting hole 3131 (as shown in fig. 7). One end of the ventilation shaft 32 is connected with the mounting seat 313 through a mounting hole. Illustratively, the vent shaft 32 is threadably coupled to the mounting hole.

Referring to fig. 3, after the clamping claw 3121 is clamped with the clamping portion 113, along the first direction, one end of the mounting seat 313 protruding from the end surface of the receiving cavity 311 (i.e., the end close to the valve seat 1) abuts against the end of the valve element 21, and pushes the valve element 21 to move in the opposite direction (as shown in fig. 3G), so that the valve element 21 is located at the first position all the time, that is, the first ventilation path is always in a communication state.

Further, a second sealing ring 41 is sleeved on the outer circumference of the clamping column 312, and the outer side surface of the second sealing ring 41 in the radial direction contacts with the inner side wall of the first channel 111, so that the gas in the first channel 111 is prevented from overflowing from the joint of the valve cover 31 and the valve body 1. The second sealing ring 41 is exemplarily an arc sealing ring, which is easily deformed, and has a small influence of post temperature change, thereby having a good sealing effect. Further, in the first direction, be provided with third sealing washer 42 between valve gap 31 and the valve body 1, exemplarily, third sealing washer 42 is U type silica gel sealing washer, yielding, and the back temperature variation influence is little, possesses better sealed effect.

The second sealing ring 41 and the third sealing ring 42 act simultaneously, so that the joint of the valve cover 31 and the valve body 1 forms double sealing, and air leakage is prevented. Meanwhile, due to the elastic action of the third sealing ring 42 along the first direction, the connection between the valve cover 31 and the valve body 1 after clamping is firmer.

Furthermore, the elastic moving part 33 is made of soft rubber and can be deformed, so that the elastic moving part 33 can be conveniently jacked up by air in the air chamber along the first direction (as shown in F direction in fig. 3 and 6) to have a certain moving space. Exemplarily, the surface of the elastic moving member 33 is uneven, and if the surface is set to be wavy, the unevenness can provide more space for the movement of the elastic moving member 33, so that the elastic moving member 33 can move along the first direction for a larger distance, and the sectional area of the air duct inlet 3211 of the second channel 321 in the first cavity 315 is increased, thereby facilitating the realization of rapid pressure relief.

Referring to fig. 6, with the aid of fig. 2, the pressure relief assembly 3 further includes a bonnet 36, a support seat 34 and a second elastic member 35. The bonnet 36 is coupled to the bonnet 31, and the bonnet 36 covers the second cavity 316 in the first direction. And along the first direction, the edge of the elastic moving piece 33 is clamped between the bonnet 36 and the bonnet 31 in the axial direction, so that the elastic moving piece 33 is tightly attached to the bonnet 31 along the circumferential direction, and the sealing performance between the elastic moving piece 33 and the bonnet 31 is ensured. Illustratively, the end surface of the bonnet 36 contacting the movable resilient member 33 is provided with an annular protrusion 362 (as shown in an enlarged view in fig. 6), and the annular protrusion 362 contacts the movable resilient member 33 to press the movable resilient member 33 and increase the sealing performance between the movable resilient member 33 and the valve cover 31.

The supporting seat 34 and the second elastic element 35 are both located in the second cavity 316, specifically, in a cavity enclosed by the bonnet 36 and the elastic moving element 33. The supporting seat 34 is connected with the movable elastic element 33, so that the supporting seat 34 can move along with the movable elastic element 33. Illustratively, the second elastic element 35 is sleeved on the supporting seat 34, and along the first direction, one end of the second elastic element 35 abuts against the supporting seat 34, and the other end abuts against the valve cap 36.

When the elastic moving part 33 is located at the fourth position, under the action of the second elastic part 35, the lower end surface of the elastic moving part 33 along the first direction contacts with the upper end surface of the mounting seat 313, so as to seal the first cavity 315 and the second cavity 316. The sealing of the contact part of the elastic moving part 33 and the end surface of the mounting seat 313 and the sealing of the connection part of the edge of the elastic moving part 33 and the valve cover 31 have a double sealing effect to ensure the sealing performance between the first cavity 315 and the second cavity 316.

That is, the second and third seal rings 41 and 42, and the seal between the resilient moving member 33 and the mounting seat 313 and the bonnet 31, ensure that the gas pressure in the gas chamber does not reach the pressure relief value, and before the resilient moving member 33 is pushed to move (i.e. when the resilient moving member 33 is located at the fourth position), the whole valve body 1 ensures good sealing performance, so that the gas chamber is not communicated with the outside, and gas leakage is prevented.

Further, the setting of the pressure relief value of the valve body 1 can be adjusted by the second elastic member 35, that is, the pressure relief value of the gas chamber can be set by adjusting the compression amount or the elastic coefficient of the second elastic member 35.

With reference to fig. 6, in an exemplary embodiment, the elastic moving member 33 is provided with a positioning rod 331 extending along the first direction, and the supporting seat 34 is provided with a positioning hole corresponding to the positioning rod 331. The positioning rod 331 can pass through the positioning hole to position the supporting seat 34 and the elastic moving member 33, so that the supporting seat 34 does not displace relative to the elastic moving member 33 in a reciprocating motion.

Further, a plurality of second through holes 361 are formed in one end face of the bonnet 36 in the first direction, the second through holes 361 enable the second cavity 316 to be communicated with the outside, stability of gas pressure in the second cavity 316 is guaranteed, and stability of a pressure relief value can be guaranteed. Specifically, the gas passage outlet 3212 of the second passage 321 corresponds to one of the second through holes 361 (as shown in fig. 6), so that the gas in the gas chamber can be discharged to the outside of the chamber more quickly after the second passage 321 is communicated with the first passage.

With continued reference to fig. 6 and 2, a dust cap 38 is further included and is connected to an end of the valve cap 36 along the first direction for dust prevention of the valve body 1, and the dust cap 38 and the valve cap 36 may be connected by a threaded connection, a snap connection, or the like. Further, a dust screen 37 is disposed between the dust cover 38 and the bonnet 36 to improve the dust-proof effect.

Further, referring to fig. 9, the spool 21 includes a spool end plate 211 and a spool rod 212, the spool rod 212 is axially connected to one end surface of the spool end plate 211, and a mounting groove 214 is formed at a connection position of the spool rod 212 and the spool end plate 211, and the mounting groove 214 is used for mounting a sealing member. The end of the valve core rod 212 is provided with a snap-fit head 2122 that projects radially from the surface of the valve core rod 212 along the valve core rod 212. The valve core rod 212 is provided with a notch 2121 radially penetrating through the clamping end 2122 along the valve core rod 212, and the notch 2121 extends for a certain distance along the axial direction of the valve core rod 212, that is, the notch 2121 divides the clamping end 2122 into two parts which are spaced apart from each other, so that the clamping end 2122 has certain elasticity. That is, the two parts of the clamping end 2122 can move radially closer together or spring apart to a certain extent, which facilitates the insertion and springing apart of the clamping end 2122 into a component, and thus clamping with the component.

Referring to fig. 9, a first clamping side wall 2123 and a second clamping side wall 2124 are respectively disposed at two ends of the clamping end 2122 parallel to the penetrating direction of the notch, the first clamping side wall 2123 and the second clamping side wall 2124 are both planar, and the first clamping side wall 2123, the second clamping side wall 2124 and the penetrating direction of the notch are perpendicular to each other. That is, the first clamping side wall 2123 and the second clamping side wall 2124 form a right angle surface at each of the two ends of the clamping end 2122.

Referring to fig. 10 and 11, the cartridge assembly 2 further includes a cartridge cap 22 for snap-fitting engagement with the cartridge rod 212. The valve core cap 22 includes a groove for accommodating the clamping end 2122 of the valve core rod 212, a clamping hole 221 is formed in the bottom wall of the groove of the valve core cap 22, and the clamping end 2122 can penetrate through the clamping hole 221 due to certain elasticity and is accommodated in the groove of the valve core cap 22, so that the clamping end 2122 is clamped with the valve core cap 22.

Illustratively, the clamping hole 221 is an elongated hole, and after the clamping end 2122 is located in the groove of the valve core cap 22, the portions of the clamping end 2122 located at the two ends of the notch 2121 are sprung open, so that the outer surface of the valve core rod 212 along the circumferential direction is in contact with the circular hole sidewall of the clamping hole 221 (as shown in fig. 11). The oblong hole comprises clamping hole side walls 2211 which are parallel to each other in the length direction, and the first clamping side wall 2123 is in contact with the clamping hole side walls 2211, so that the valve core rod 212 can be prevented from rotating relative to the valve core cap 22 in the circumferential direction. In the first orientation, the second latch side wall 2124 contacts the outer side wall of the groove and the end surface of the latch head 2122 contacts the inner side wall of the groove to fix the position of the valve core rod 212 and the valve core cap 22 in the first orientation (i.e., the axial direction of the valve core rod 212). Thus, the valve core rod 212 and the valve core cap 22 can be firmly clamped, so that the valve core rod 212 and the valve core cap 22 can move together, for example, move in the first direction simultaneously, and rotate the valve core cap 22 in the circumferential direction, so as to drive the valve core rod 212 to rotate.

Referring to fig. 2 and 3, the valve core assembly 2 further includes a first resilient member 23 for resiliently connecting the valve core rod 212 to the connection portion 112. Specifically, the valve core rod 212 extends through the connecting portion 112 in the first direction, and the clamping head 2122 passes through the connecting portion 112 and is clamped with the valve core cap 22. In an embodiment, the first elastic member 23 is sleeved on the valve core rod 212 and located between the valve core cap 22 and the connecting portion 112, one end of the first elastic member 23 abuts against the valve core cap 22, and the other end abuts against the connecting portion 112.

Referring to fig. 3, the cartridge assembly 2 further includes a first seal 24 disposed in a mounting groove 214 at the junction of the cartridge rod 212 and the cartridge end plate 211. When an external force is applied to the valve body 21 to be located at the first position, the first elastic member 23 is compressed, and the first sealing member 24 is separated from one end of the first passage 111, so that the first vent path is in a conductive state. After the external force acting on the valve core 21 is removed, the first elastic member 23 is elastically restored, and can drive the valve core 21 to move to be located at the second position, and at this time, the first sealing member 24 is attached to one end surface of the first channel 111, so that the first ventilation path is in a sealed state. The external force acting on the valve core 21 includes the extrusion force of the pressure relief assembly 3, and after the pressure relief assembly 3 is installed on the valve body 1, the valve core 21 is extruded along the first direction and the first elastic element 23 is compressed, so that the valve core 21 is located at the first position, and the first ventilation path is in a conduction state.

Referring to fig. 9, further, the spool 21 further includes at least two retainers 213 spaced apart from each other along the circumferential direction of the spool rod 212, and the retainers 213 are disposed to protrude from the spool rod 212. Referring to fig. 4 and 5, the sidewall of the connecting portion 112 is provided with receding notches 1122 at intervals along the circumferential direction corresponding to the respective latches 213, and each of the receding notches 1122 is radially penetrated and axially extended by a predetermined length. When the valve core 21 is located at the second position, each latch 213 is located in the corresponding relief notch 1122, so that the first sealing member 24 can be attached to the end surface of the first channel 111.

With reference to fig. 5, in an embodiment, an end wall of the connecting portion 112 near one end of the valve body 1 is provided with a latching recess 1121 corresponding to each latch 213, and each latch 213 can be latched with the latching recess 1121. When the valve core 21 is located at the first position, the catches 213 of the valve core 21 are separated from the yielding notches 1122, and the catches 213 can be engaged with the corresponding engaging recesses 1121 by rotating the valve core 21. So set up, can make case 21 keep in the first position for a period of time under the condition that need not external force and press, be convenient for deflating for the gas cavity.

In another embodiment, the end of the connecting portion 112 is not provided with the latching recess 1121 corresponding to each latch 213, and each latch 213 directly latches with the end surface of the connecting portion 112 after rotating a certain angle along the circumferential direction.

That is to say, when the pressure relief assembly 3 is separated from the valve body 1, and no external force is applied to the valve core 21, the valve core 21 can be located at the second position under the elastic force of the first elastic element 23, that is, the first sealing element 24 is tightly attached to the end of the first channel 111, so that the first ventilation path is in a sealed state, and at this time, the gas chamber is not communicated with the outside. When an external force pushes the end of the valve core rod 212 to move the valve core 21 toward one end of the valve body 1 along the first direction, the first sealing member 24 may be far away from the end of the first channel 111, so that the first ventilation path is in a conduction state, and at this time, the gas chamber is communicated with the outside, so that the gas chamber is deflated. If continuous air release is needed for a period of time, the valve core cap 22 can be rotated to drive the valve core 21 to rotate along the circumferential direction, so that each fixture block 213 rotates to the corresponding clamping groove 1121, and under the elastic force action of the first elastic piece 23, each fixture block 213 is clamped with the corresponding clamping groove 1121, so that the valve core 21 can be continuously kept at the first position, and thus, rapid air release of the air chamber can be realized.

After the pressure relief assembly 3 and the valve body 1 are clamped with the clamping jaw 3121 through the clamping portion 113, one end of the mounting seat 313 pushes and pushes the valve core 21 to move along the first direction, so that the valve core 21 is located at the first position, the first ventilation path is always in a conduction state, and the gas in the gas chamber enters the first chamber 315 through the first ventilation path and the first through hole 314, and contacts with the lower end surface of the elastic moving member 33 along the first direction.

When the gas pressure value in the gas chamber is increased to the pressure relief value for some reason, that is, when the gas pressure can overcome the elastic force of the second elastic member 35, the gas in the gas chamber can push the elastic moving member 33 to move along the first direction (shown in the direction F in fig. 6), and the elastic moving member 33 is located at the third position. That is, the elastic moving element 33 moves and deforms towards the second cavity, so that the air duct inlet 3211 of the second air duct 321 is at least partially located in the first cavity 315, the second air duct 321 is communicated with the first cavity 315, that is, the second air duct is communicated, and the air in the air cavity overflows through the first air duct and the second air duct, thereby realizing pressure relief.

When the pressure value of the air chamber is smaller than the pressure relief value, the elastic moving member 33 moves in the reverse direction (shown in fig. 6 as direction G) relative to the ventilation shaft 32 under the elastic force of the second elastic member 35, the elastic moving member 33 resets (i.e., the elastic moving member 33 is located at the fourth position) and contacts and seals with the end surface of the mounting seat 313, the air passage inlet 3211 is located in the second cavity 316, the second passage 321 is not communicated with the first cavity 315, i.e., the second air passage is sealed in radial direction, and the air chamber is isolated from the outside, and the pressure relief is stopped.

According to the technical scheme, automatic pressure relief and quick pressure relief when the inflatable body is normally used can be realized, and the pressure relief assembly can be quickly replaced and disassembled, so that the operation is convenient and fast, and the efficiency is high. Meanwhile, the pressure relief value is adjustable, and the inflatable bag is suitable for different inflatable bodies.

The application further discloses another embodiment still discloses an inflation body, including gas chamber and above-mentioned combination relief valve, and the combination relief valve is connected with gas chamber's lateral wall through valve body 1, and gas chamber is linked together with first passageway 111.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the invention, and it is not intended to limit the invention to the specific embodiments described. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A combination pressure relief valve for a first object having a gas chamber, the combination pressure relief valve comprising:

a valve body having a first passage for communicating with the gas chamber;

a spool in resilient connection with the valve body, the spool being movable relative to the first passage to switch between a first position and a second position; when the valve core is positioned at the first position, the first channel is in a communication state; when the valve core is positioned at the second position, the first channel is in a sealing state;

the pressure relief assembly is detachably connected with the valve body, and when the pressure relief assembly is connected with the valve body, the valve core is stressed to be positioned at the first position; when the pressure relief assembly is separated from the valve body, the valve core loses the external force to be positioned at the second position;

the pressure relief assembly comprises a second channel and an elastic moving part, and the second channel is communicated with the outside; the elastic moving piece can move relative to the second channel to switch between a third position and a fourth position; when the elastic moving piece is positioned at a third position, the second channel is communicated with the first channel; when the elastic moving piece is positioned at the fourth position, the second channel is disconnected with the first channel;

2. The combined pressure relief valve of claim 1 wherein the resilient displacement member is positively displaceable relative to the second passage by an external force to assume the third position; or the elastic moving part can move reversely relative to the second channel under the action of losing external force so as to be positioned at the fourth position.

3. The combined pressure relief valve of claim 2 wherein the external force on the resilient displacement member comprises gas pressure within the gas chamber.

4. The combined pressure relief valve of claim 1 wherein the valve body includes a snap-in portion disposed in the first passage; the pressure release subassembly includes the valve gap, the valve gap is provided with the jack catch along axial one end, the valve gap inserts along the axial the first passageway, the valve gap can be around self axis rotation back, the jack catch with joint portion follows axial looks joint, so that the valve gap with the valve body is connected.

5. The combined pressure relief valve according to claim 4, characterized in that the other end of the valve cover in the axial direction is provided with an accommodating cavity, and the elastic moving member is arranged in the accommodating cavity; the elastic moving piece divides the accommodating cavity into a first cavity and a second cavity along the axial direction, a first through hole is formed in the valve cover, the first cavity is communicated with the first channel through the first through hole, and the second cavity is communicated with the outside;

the second channel comprises an airway inlet and an airway outlet, and the airway outlet is communicated with the second cavity; when the elastic moving piece is positioned at the third position, the air passage inlet is communicated with the first cavity; when the elastic moving piece is positioned at the fourth position, the air passage inlet is communicated with the second cavity.

6. The combined pressure relief valve of claim 5 wherein the pressure relief assembly further comprises a vent shaft disposed within the receiving chamber, the vent shaft extending axially through the resilient moving member, the vent shaft having the second passage disposed thereon.

7. The combination pressure relief valve of claim 6 wherein the vent shaft is metal.

8. The combined pressure relief valve of claim 6 wherein the valve cover further comprises a mounting seat, one end of the mounting seat protrudes out of the end surface of the accommodating cavity connected with the clamping jaw along the axial direction, the other end of the mounting seat extends into the accommodating cavity, and the vent shaft is connected with the other end of the mounting seat;

after the clamping jaw is clamped with the clamping part, one end of the mounting seat is abutted to the end part of the valve core, so that the valve core is located at the first position.

9. The combination pressure relief valve of claim 8 wherein when the resilient moving member is in the fourth position, the lower end surface of the resilient moving member is in axial abutment with the upper end surface of the mounting seat.

10. The combined pressure relief valve of claim 8 wherein the pressure relief assembly further comprises:

the bonnet is connected with the other end of the bonnet, the bonnet covers the second cavity along the axial direction, and the bonnet clamp the edge of the elastic moving part along the axial direction;

and the second elastic piece is axially arranged, one end of the second elastic piece is abutted against the supporting seat, and the other end of the second elastic piece is abutted against the valve cap.

11. The combined pressure relief valve of claim 10 wherein the resilient moving member is provided with a positioning rod, the support seat is provided with a positioning hole, and the positioning rod can axially pass through the positioning hole.

12. The combined pressure relief valve of claim 10 wherein the end face of the valve cap is provided with a plurality of second through holes, and the second chamber is in communication with the outside through the second through holes.

13. The combined pressure relief valve of claim 1 wherein the spool is reversibly movable relative to the first passage under an external force to assume the first position; or the valve core can move positively relative to the first channel after the external force is lost so as to be in the second position.

14. The combined pressure relief valve of claim 13 wherein the external forces acting on the spool include a user applied force and a squeezing force of the pressure relief assembly.

15. The combined pressure relief valve according to any one of claims 4 to 12, wherein the valve body further comprises a connecting portion, the connecting portion is disposed in the first passage, and the connecting portion is connected with an inner side wall of the first passage through the clamping portion; the valve core axially penetrates through the connecting part, and a gap is formed between the valve core and the connecting part along the circumferential direction;

the combined pressure relief valve further comprises:

16. The combined pressure relief valve of claim 15 further comprising a first seal disposed on the spool;

when the valve core is located at the first position, the first sealing element is separated from one end of the first channel along the axial direction, so that the first channel is in a conducting state;

17. The combined pressure relief valve of claim 15 wherein the spool comprises:

the valve core rod axially penetrates through the connecting part;

18. The combined pressure relief valve according to claim 17 wherein the spool further includes at least two detents projecting from a surface of the spool rod in a radial direction of the spool rod, each of the detents being spaced apart in a circumferential direction of the spool rod;

the side wall of the connecting part is provided with an abdicating notch which extends along the axial direction and corresponds to each clamping block, and when the valve core is positioned at the second position, each clamping block is positioned in the abdicating notch correspondingly;

the valve core moves relative to the first channel along the axial direction, so that after each fixture block moves along the axial direction to be separated from each abdicating notch, the valve core can rotate along the circumferential direction, so that each fixture block rotates to be clamped with the end face of the connecting part along the axial direction, and the first channel is in a conducting state.

19. The combined pressure relief valve according to claim 18 wherein an end surface of the connecting portion is provided with a snap-fit groove corresponding to each of the clips, and each of the clips is capable of being snapped fit with the snap-fit groove so that the spool is located at the first position.

20. A gas-filled body comprising a gas chamber and a combined pressure relief valve as claimed in any one of claims 1 to 19.