Inflation valve assembly and explosion-proof lighter

Abstract

The utility model discloses an inflation valve assembly and an explosion-proof lighter, the inflation valve assembly comprises a mounting seat body made of POM material, and an inflation valve is arranged in the mounting seat body. The surface of the inflation valve abuts against the inner surface of the mounting seat body, so that the connecting structure keeps stable connection, the problem that the inflation valve cannot be effectively connected due to the fact that the inflation valve assembly made of the POM material is damaged through ultrasonic welding is solved, and the explosion-proof lighter made of the POM material can be provided with a corresponding inflation structure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lighter technical field, concretely relates to a kind of inflation valve assembly and explosion-proof lighter. BACKGROUND

[0002] Lighter is provided with inflation valve by being connected with gas storage chamber, so as to have inflation function, and the lighter of AS material in prior art is connected with inflation valve by ultrasonic welding, so that the lighter prepared from AS material has inflation structure at bottom, and the preparation material of explosion-proof lighter is POM, since POM material is damaged in ultrasonic welding process, and the explosion-proof lighter does not have corresponding inflation structure due to the defect, so it is necessary to develop a kind of inflation valve assembly and explosion-proof lighter. SUMMARY

[0003] The utility model discloses a kind of inflation valve assembly and explosion-proof lighter, to solve above-mentioned technical problem, first boss is set on the outer surface of connecting frame body, so that connecting frame body and inflation valve assembly are connected by interference fit, the surface of first boss is in abutment with the inner surface of inflation valve assembly, so that the connecting structure is kept stable connection, avoid the problem that POM material inflation valve assembly is damaged by ultrasonic welding and cannot be effectively connected with inflation valve, so that the explosion-proof lighter of POM material can be set corresponding inflation structure.

[0004] To achieve the above-mentioned utility model purposes, the technical solutions adopted by the utility model are as follows:

[0005] A kind of inflation valve assembly, including the mounting seat body made of POM material, the inflation valve is arranged inside the mounting seat body. The surface of inflation valve is in abutment with the inner surface of mounting seat body, so that the connecting structure is kept stable connection, avoid the problem that POM material inflation valve assembly is damaged by ultrasonic welding and cannot be effectively connected with inflation valve, so that the explosion-proof lighter of POM material can be set corresponding inflation structure.

[0006] Preferably, the inflation valve includes a connecting frame body, the connecting frame body is provided with a connecting member, and the connecting member includes a first boss and a sealing end, both of which are arranged on the outer surface of the connecting frame body. The inflation valve is provided with an inflation end and an air outlet end at both ends in the axial direction. The piston assembly is movably arranged in the connecting frame body. The first boss is arranged on the outer surface of the connecting frame body, so that the connecting frame body and the inflation valve assembly are connected by interference fit. The surface of the first boss is in abutment with the inner surface of the inflation valve assembly, so that the connecting structure is kept stable connection. The problem that POM material inflation valve assembly is damaged by ultrasonic welding and cannot be effectively connected with inflation valve is avoided. The explosion-proof lighter of POM material can be set corresponding inflation structure.

[0007] Preferably, the sealing end comprises one of a first sealing ring, a sealing gasket, and a glue body. The technical scheme adopts the technical scheme of setting the first sealing ring, so that the connection frame body and the inflation valve assembly are in interference fit to form a stable connection state, thereby improving the air tightness between the connection frame body and the inflation valve assembly and avoiding fuel leakage from the connection frame body and the inflation valve assembly after inflation.

[0008] Preferably, the first boss is provided in one or more rows. The first boss is provided in one or more rows, and the number of the first boss can be adjusted according to the connection stability or the production and assembly process. In the technical scheme, the first boss is provided in five rows.

[0009] Preferably, the first boss is provided on the outer surface of the connection frame body in the radial direction, and the first sealing ring is sleeved on the outer surface of the connection frame body in the radial direction. The first boss and the first sealing ring are both provided on the outer surface of the connection frame body, which facilitates the connection of the connection frame body and the inflation valve assembly and provides corresponding sealing performance.

[0010] Preferably, the first boss and the first sealing ring are continuously and circumferentially arranged on the outer surface of the connection frame body. The continuously and circumferentially arranged first boss provides multiple abutting positions when the connection frame body is assembled in the inflation valve assembly, thereby improving the connection stability between the connection frame body and the inflation valve assembly. Meanwhile, the first sealing ring is circumferentially arranged to abut against the outer surface of the connection frame body and the inner surface of the inflation valve assembly, thereby improving the air tightness between the connection frame body and the inflation valve assembly after they are connected.

[0011] Preferably, in the radial direction of the connection frame body, the cross section of the first boss is parallel to the cross section of the first sealing ring.

[0012] Preferably, in the axial direction of the connection frame body, the cross section of the first boss is one of a triangle, a quadrilateral, and a sector. In the technical scheme, the cross section of the first boss is a triangle. The first boss with a triangular cross section is provided, and the end face of the first boss facing the inflation valve assembly is inclined downward, which facilitates the assembly of the connection frame body into the inflation valve assembly. After the connection frame body and the inflation valve assembly are connected, the interference fit and the inclined surface can effectively prevent the connection frame body from being pulled out of the inflation valve assembly, thereby improving the connection stability of the inflation valve.

[0013] Preferably, the first boss is provided at one end of the connection frame body close to the inflation end, and the first sealing ring is provided at one end of the connection frame body close to the gas outlet end. After the connection frame body is assembled in the inflation valve assembly, the first sealing ring is provided at a position away from the first boss to have high sealing performance. Meanwhile, the first sealing ring is provided close to the gas outlet end to timely block the filled fuel and prevent it from leaking from the outer surface of the connection frame body and the inner surface of the inflation valve assembly, thereby improving the overall gas storage stability.

[0014] Preferably, the inflator valve further comprises a piston assembly movably arranged in the connecting frame.

[0015] Preferably, the connecting frame comprises a frame body, a movable space arranged through the frame body;

[0016] The piston assembly comprises a shaft movably arranged in the movable space, and an elastic mechanism cooperating with the shaft to inflate or reach a sealed state;

[0017] The shaft is internally provided with an inflation channel for inflation operation, and is provided at one end close to the air outlet end with a sealing block capable of being embedded with the frame body. The shaft is arranged through the movable space. The first boss and the first sealing ring are arranged on the outer surface of the frame body. The inflation channel and the sealing block are sequentially arranged in the direction from the inflation end to the air outlet end. The shaft is movably arranged in the movable space, so that the shaft can move axially along the frame body. At the same time, the shaft is provided with the inflation channel for inflation operation, which is convenient for inflation. When inflation is needed, the shaft is pressed at the inflation end, so that the shaft extends to the outside of the frame body and the outside of the inflator valve assembly, the mutual embedding state of the frame body and the sealing block is released, the inflation channel is connected with the gas storage tank of the lighter, and inflation operation is performed. When inflation is not needed or inflation is completed, the pressing on the shaft is released. Due to the arrangement of the elastic mechanism, the shaft returns to the original state, the sealing block and the frame body return to the embedded state, so that the inflator valve is in a sealed state relative to the gas storage tank and the inflator valve assembly. The inflation channel cannot be connected with the gas storage tank through the movable space. The movable space is in a sealed state relative to the gas storage tank, so as to avoid fuel leakage from the inflator valve to the outside.

[0018] Preferably, the sealing block is provided with a first inclined surface around the periphery, and the frame body is provided with a second inclined surface capable of being fitted with the first inclined surface. The first inclined surface and the second inclined surface are arranged to fit with each other, so that the sealing block can be sealed with the frame body. At the same time, under the action of the elastic mechanism, the fit between the first inclined surface and the second inclined surface is more compact, the sealing stability is improved, and fuel leakage from the gas storage tank to the outside can be effectively avoided.

[0019] Preferably, the activity space comprises a first space, a second space and a third space arranged in sequence along the direction from the inflation end to the air outlet end. The shaft body penetrates the first space, the second space and the third space, and the elastic mechanism operates in the first space. In the non-inflation state, under the action of the elastic mechanism, the initial position of the inflation channel is in the first space, the third space is embedded with the sealing block, and the inflation channel cannot communicate with the gas storage chamber through the third space. In the inflation state, the sealing block is disengaged from the third space and extends along the moving direction of the shaft body, and the end of the inflation channel is in a state of communication with the gas storage chamber, so that the inflation operation is performed. The inflation valve structure is compact, requires small space, and can effectively ensure stable sealing or inflation state.

[0020] Preferably, along the radial direction of the frame body, the diameter of the first space is greater than the diameter of the second space, and the third space can be embedded with the sealing block. The diameter of the third space at the smallest position is equal to the diameter of the second space. The shaft body can penetrate the first space, the second space and the third space. The first space has a larger diameter to accommodate the elastic mechanism, and the smaller second space can effectively prevent the elastic mechanism from extending into the second space, thereby improving the operation stability of the elastic mechanism.

[0021] Preferably, the inflation channel comprises a first channel arranged along the axial direction of the shaft body and a second channel arranged close to the air outlet end and communicating with the first channel. The second channel is arranged along the radial direction of the shaft body and communicates with the outside of the shaft body. In the non-inflation state, the first channel communicates with the second channel and the first space. In the inflation state, the first channel communicates with the second channel and the gas storage chamber connected to the outside of the frame body.

[0022] Preferably, along the radial direction of the frame body, the diameter of the second space is greater than or equal to the diameter of the shaft body at the position where the inflation channel is arranged.

[0023] Preferably, the outer surface of the shaft body is sleeved with a second sealing ring, and the outer surface of the second sealing ring abuts against the surface of the first space. The shaft body, the second sealing ring and the frame body are arranged in sequence from inside to outside at the position where the inflation channel is arranged. The position where the inflation channel is arranged can penetrate the second space. In the inflation state, the extended shaft body can transport fuel into the gas storage chamber through the first channel and the second channel. Since the gas storage chamber is in communication with the second space and the third space at this time, and the outer surface of the shaft body is sleeved with the second sealing ring, the outer periphery of the second sealing ring abuts against the inner surface of the first space to block the fuel flowing from the gas storage chamber to the second space, thereby improving the stability of the inflation process.

[0024] Preferably, the elastic mechanism comprises a first spring sleeved on the outer surface of the shaft body, a fixed block arranged at the shaft body close to the inflation end, the diameter of the fixed block and the first spring is smaller than the diameter of the first space. One end of the first spring is in contact with the fixed block; along the direction from the inflation end to the air outlet end in the first space, the fixed block, the first spring and the second sealing ring are arranged in sequence. The diameter of the fixed block, the diameter of the second spring and the diameter of the second sealing ring are all greater than the diameter of the second space; wherein the first spring and the second sealing ring are arranged in sequence along the direction from the inflation end to the air outlet end, during the inflation process, the first spring continuously pushes the second sealing ring, so that the second sealing ring continuously contacts the end surface of the first space along the direction from the inflation end to the air outlet end, thereby the second sealing ring has multiple contact points, the sealing stability is improved, the fuel flowing into the second space from the gas storage chamber is blocked from flowing into the first space and the outside of the lighter, thereby the stability of the inflation process is improved.

[0025] Preferably, the inflation valve assembly comprises a mounting seat body in interference fit with the outer surface of the first boss;

[0026] The outer surface of the sealing end is in contact with the inner surface of the mounting seat body. The piston assembly penetrates the mounting seat body. Specifically, the shaft body penetrates the mounting seat body; the outer surface of the first sealing ring is in contact with the inner surface of the mounting seat body; the connecting frame body is arranged in the mounting seat body; the first boss is arranged on the outer surface of the connecting frame body, so that the connecting frame body and the mounting seat body are connected by interference fit, the surface of the first boss is in contact with the inner surface of the inflation valve assembly, so that the connecting structure remains stable connection, avoids the problem that the inflation valve assembly made of POM material cannot be effectively connected due to damage caused by ultrasonic welding, and makes the explosion-proof lighter made of POM material can be provided with corresponding inflation structure.

[0027] The outer surface of the first sealing ring is in contact with the inner surface of the mounting seat body, so that the connecting frame body and the mounting seat body are in stable connection state by interference fit, thereby improving the air tightness between the connecting frame body and the inflation valve assembly, and avoiding the problem of fuel leakage between the connecting frame body and the inflation valve assembly after inflation.

[0028] Preferably, the mounting seat body is provided with a first block close to the air outlet end;

[0029] The first block is provided with a first through hole for the shaft body to penetrate the space; the diameter of the first through hole is greater than the diameter of the frame body close to the air outlet end.

[0030] The step part is arranged on the first sealing ring, and the first sealing ring has a bearing platform in the direction of connecting the frame body to the inflation valve assembly, so that the problem of sliding and falling of the first sealing ring is avoided; the projection of the first sealing ring intersects with the projection of the first block in the axial direction of the frame body.

[0031] The explosion-proof lighter comprises a lighter body, the inflation valve assembly is assembled or integrally arranged on the lighter body, and the mounting seat body is integrally formed with the lighter body or fixedly connected to the lighter body.

[0032] The application has the beneficial technical effects:

[0033] The inflation valve assembly of the utility model, comprising the mounting seat body made of POM material, inflation valve is arranged inside the mounting seat body, the surface of the inflation valve is in abutment with the inner surface of the mounting seat body, the connecting structure is kept stable connection, the problem of damage to the inflation valve assembly of POM material by ultrasonic welding is avoided, the inflation valve cannot be effectively connected, and the explosion-proof lighter of POM material can be provided with corresponding inflation structure. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 As shown is a structure schematic view of the inflation valve assembly of the utility model assembling the inflation valve;

[0035] Figure 2 As shown is another structure schematic view of the inflation valve assembly of the utility model assembling the inflation valve;

[0036] Figure 3 As shown is a side view structure schematic view of the inflation valve assembly of the utility model assembling the inflation valve;

[0037] Figure 4 As shown is a structure schematic view of the inflation valve of the utility model; Figure 3

[0038] Figure 5 As shown is another structure schematic view of the inflation valve of the utility model;

[0039] Figure 6 As shown is a side view structure schematic view of the inflation valve of the utility model;

[0040] Figure 7 As shown is a side view structure schematic view of the inflation valve of the utility model;

[0041] Figure 8 As shown is a structure schematic view of the inflation valve of the utility model; Figure 7 ​​

[0042] Figure 9 It is another schematic view of the explosion structure of the inflation valve of the utility model.

[0043] Figure 10 It is another schematic view of the explosion structure of the inflation valve of the utility model.

[0044] Reference signs

[0045] 1-connection frame body; 11-first boss; 12-first sealing ring; 2-piston assembly; 13-frame body; 14-movable space; 21-shaft body; 22-elastic mechanism; 211-inflation passage; 212-sealing block; 2121-first inclined surface; 131-second inclined surface; 141-first space; 142-second space; 143-third space; 2111-first passage; 2112-second passage; 23-second sealing ring; 221-first spring; 222-fixed block; 31-mounting seat body; 311-first block. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the specific embodiments of the utility model will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, and other embodiments can also be obtained.

[0047] The technical scheme of the utility model will be described in detail below with specific embodiments.

[0048] Embodiment 1

[0049] With reference to Figures 1 to 9 As shown, an inflation valve comprises a connection frame body 1, the connection frame body 1 is provided with a connecting member, the connecting member comprises a first boss 11 and a sealing end, both of which are arranged on the outer surface of the connection frame body 1. The inflation valve is provided with an inflation end 100 and an air outlet end 101 at both ends along the axial direction. The piston assembly is movably arranged in the connection frame body 1. The first boss 11 is arranged on the outer surface of the connection frame body 1, so that the connection frame body 1 and the inflation valve assembly are connected through interference fit, the surface of the first boss 11 abuts against the inner surface of the inflation valve assembly, the connection structure is kept in stable connection, the problem that the inflation valve assembly made of POM material cannot be effectively connected due to damage caused by ultrasonic welding is avoided, and the explosion-proof lighter made of POM material can be provided with corresponding inflation structure.

[0050] The sealing end comprises a first sealing ring 12. The technical scheme adopts the technical scheme of arranging the first sealing ring 12, so that the connection frame body 1 and the inflation valve assembly are in interference fit to form a stable connection state, the air tightness between the connection frame body 1 and the inflation valve assembly is improved, and the problem of leakage of the inflated fuel from between the connection frame body 1 and the inflation valve assembly is avoided.

[0051] The first boss 11 is arranged in one row or multiple rows. The first boss 11 arranged in one row or multiple rows can be adjusted in the arrangement number according to the connection stability requirement or the production and assembly process requirement, in the technical scheme, the first boss 11 is arranged in five rows.

[0052] The first boss 11 is arranged on the outer surface of the connection frame body 1 in the radial direction, and the first sealing ring 12 is sleeved on the outer surface of the connection frame body 1 in the radial direction. The first boss 11 and the first sealing ring 12 are arranged on the outer surface of the connection frame body 1, which facilitates the connection of the connection frame body 1 and the inflation valve assembly and has corresponding sealing performance.

[0053] The first boss 11 and the first sealing ring 12 are circumferentially continuously arranged on the outer surface of the connection frame body 1. The first boss 11 arranged continuously around improves the connection stability between the connection frame body 1 and the inflation valve assembly when the connection frame body 1 is assembled in the inflation valve assembly, and the first sealing ring 12 is arranged around to abut against the outer surface of the connection frame body 1 and the inner surface of the inflation valve assembly, thereby improving the air tightness between the connection frame body 1 and the inflation valve assembly after being connected.

[0054] Along the radial direction of the connection frame body 1, the cross section of the first boss 11 is parallel to the cross section of the first sealing ring 12.

[0055] Along the axial direction of the connection frame body 1, the cross section of the first boss 11 is one of a triangle, a quadrilateral and a sector. In the technical scheme, the cross section of the first boss 11 is a triangle, the first boss 11 with the cross section of a triangle is arranged, and the end surface of the first boss 11 facing the inflation valve assembly is arranged to be inclined downward, which facilitates the assembly of the connection frame body 1 into the inflation valve assembly, and after the connection frame body 1 is connected with the inflation valve assembly, the interference fit and the inclined surface can effectively prevent the connection frame body 1 from being pulled out of the inflation valve assembly, thereby improving the connection stability of the inflation valve.

[0056] The first boss 11 is arranged at one end of the connecting frame body 1 close to the inflating end; the first sealing ring 12 is arranged at one end of the connecting frame body 1 close to the gas outlet end. After the first boss 11 is assembled in the inflating valve assembly, the first sealing ring 12 is arranged away from the first boss 11, so that the sealing performance is higher; meanwhile, the first sealing ring 12 is arranged close to the gas outlet end, so that the inflating fuel is prevented from leaking out from the space between the outer surface of the connecting frame body 1 and the inner surface of the inflating valve assembly, and the overall gas storage stability is improved.

[0057] The inflating valve further comprises a piston assembly 2 movably arranged in the connecting frame body 1.

[0058] The connecting frame body 1 comprises a frame body 13 and a movable space 14 arranged through the frame body 13.

[0059] The piston assembly 2 comprises a shaft body 21 movably arranged in the movable space 14 and an elastic mechanism 22 cooperating with the shaft body 21 to inflate or reach a sealing state.

[0060] The shaft body 21 is internally provided with an inflating channel 211 for inflating operation, and is provided with a sealing block 212 at one end close to the gas outlet end, which can be embedded in the frame body 13. The shaft body 21 is arranged through the movable space 14; the first boss 11 and the first sealing ring 12 are arranged on the outer surface of the frame body 13; the inflating channel 211 and the sealing block 212 are sequentially arranged along the direction from the inflating end to the gas outlet end; the shaft body 21 is movably arranged in the movable space 14, so that the shaft body 21 can move axially along the frame body 13; meanwhile, the shaft body 21 is provided with the inflating channel 211 for inflating operation, so that the inflating operation is facilitated; when inflating is needed, the shaft body 21 is pressed at the inflating end, so that the shaft body 21 extends to the outside of the frame body 13 and the inflating valve assembly, the embedded state of the frame body 13 and the sealing block is released, the inflating channel 212 is connected with the gas storage chamber of the lighter, and the inflating operation is performed; when inflating is not needed or the inflating is completed, the pressing on the shaft body 21 is released, and the shaft body 21 returns to the original state due to the arrangement of the elastic mechanism 22, so that the sealing block 212 and the frame body 13 return to the embedded state, so that the inflating valve is in a sealing state relative to the gas storage chamber and the inflating valve assembly, the inflating channel 211 cannot be connected with the gas storage chamber through the movable space 14, the movable space 14 is in a sealing state relative to the gas storage chamber, and the inflating fuel is prevented from leaking out of the inflating valve.

[0061] The first inclined surface 2121 is arranged on the outer periphery of the sealing block 212, and the second inclined surface 131 is arranged on the frame body 13 and can be attached to the first inclined surface 212. The first inclined surface 2121 and the second inclined surface 131 are arranged to be attached to each other, so that the sealing block 212 can be sealed with the frame body 13. Under the action of the elastic mechanism 22, the attachment between the first inclined surface 212 and the second inclined surface 131 is more compact, the sealing stability is improved, and the fuel in the gas storage chamber can be effectively prevented from leaking to the outside.

[0062] The movable space 14 includes a first space 141, a second space 142, and a third space 143 arranged in sequence from the inflation end to the gas outlet end. The shaft 21 penetrates the first space 141, the second space 142, and the third space 143, and the elastic mechanism 22 operates in the first space 141. In the non-inflation state, under the action of the elastic mechanism 22, the initial position of the inflation channel 211 is in the first space 141, the third space 143 is embedded with the sealing block 212, and the inflation channel 211 cannot communicate with the gas storage chamber through the third space 143. In the inflation state, the sealing block 212 is disengaged from the third space 143 and extends along the moving direction of the shaft 21, and the end of the inflation channel 211 is in a state of communication with the gas storage chamber, so that the inflation operation is performed. This kind of inflation valve structure is compact, requires small space, and can effectively ensure that the sealing or inflation state is stable.

[0063] In the radial direction of the frame body 13, the diameter of the first space 141 is greater than the diameter of the second space 142, and the third space 143 can be embedded with the sealing block 212. The diameter of the third space 143 is equal to the diameter of the second space 142. The second inclined surface 131 is arranged at the third space 143. The shaft 21 can penetrate the first space 141, the second space 142, and the third space 143. The first space 141 has a larger diameter to accommodate the elastic mechanism 22, and the smaller second space 142 can effectively prevent the elastic mechanism 22 from extending into the second space 142, thereby improving the operation stability of the elastic mechanism.

[0064] The inflation channel 211 includes a first channel 2111 arranged in the axial direction of the shaft 21 and a second channel 2112 arranged in the radial direction of the shaft 21 and connected to the outside of the shaft 21. In the non-inflation state, the first channel 2111 is connected to the second channel 2112 and the first space 141. In the inflation state, the first channel 2111 is connected to the second channel 2112 and the gas storage chamber outside the frame 1.

[0065] In the radial direction of the frame body 13, the diameter of the second space 142 is greater than or equal to the diameter of the shaft 21 at the inflation channel 211.

[0066] The outer surface of the shaft body 21 is sleeved with the second sealing ring 23, the outer surface of the second sealing ring 23 abuts against the inner surface of the frame body 13, in particular, the outer surface of the second sealing ring 23 abuts against the surface of the first space 141; the shaft body 21 is provided with the inflation passage 211, the second sealing ring 23, and the frame body 13 are sequentially arranged from inside to outside. The shaft body 21 provided with the inflation passage 211 can penetrate the second space 142; in the inflation state, the shaft body 21 extending out can transport fuel into the gas storage chamber through the first passage 2111 and the second passage 2112, because the gas storage chamber is in communication with the second space 142 and the third space 143 at this time, because the outer surface of the shaft body 21 is sleeved with the second sealing ring 23, the outer periphery of the second sealing ring 23 abuts against the inner surface of the first space 141, the fuel flowing into the second space 142 from the gas storage chamber is blocked, avoiding flowing into the first space 141 and the outside of the lighter, thereby improving the stability of the inflation process.

[0067] The elastic mechanism 22 includes the first spring 221 sleeved on the outer surface of the shaft body 21 and the fixed block 222 arranged near the inflation end of the shaft body 21, the diameters of the fixed block 222 and the first spring 221 are smaller than the diameter of the first space 141. One end of the first spring 221 abuts against the fixed block 222; along the direction from the inflation end to the gas outlet end in the first space 141, the fixed block 222, the first spring 221, and the second sealing ring 23 are sequentially arranged. The diameters of the fixed block 222, the first spring 221, and the second sealing ring 23 are all greater than the diameter of the second space 142; wherein the first spring 221 and the second sealing ring 23 are sequentially arranged in the direction from the inflation end to the gas outlet end, in the inflation process, the first spring 221 continuously pushes the second sealing ring 23, so that the second sealing ring 23 continuously abuts against the end surface of the first space 141 in the direction from the inflation end to the gas outlet end, thereby the second sealing ring 23 has multiple abutting points, improving the sealing stability, blocking the fuel flowing into the second space 142 from the gas storage chamber, avoiding flowing into the first space 141 and the outside of the lighter, thereby improving the stability of the inflation process.

[0068] A gas inflation valve assembly for assembling the gas inflation valve, the gas inflation valve assembly includes the mounting seat 31 in interference fit with the outer surface of the first boss 11;

[0069] The sealing end outer surface is in contact with the inner surface of the mounting body 31. The piston assembly 22 penetrates the mounting body 31. Specifically, the shaft body 21 penetrates the mounting body 31; the outer surface of the first sealing ring 12 is in contact with the inner surface of the mounting body 31; the connecting frame body 1 is arranged in the mounting body 31; the first boss 11 is arranged on the outer surface of the connecting frame body 1, so that the connecting frame body 1 and the mounting body 31 are connected by interference fit, the surface forming the first boss 11 is in contact with the inner surface of the inflation valve assembly, the connecting structure is stably connected, the problem of damage to the POM material inflation valve assembly caused by ultrasonic welding is avoided, the problem of ineffective connection of the inflation valve does not occur, and the POM material explosion-proof lighter can be provided with a corresponding inflation structure.

[0070] The outer surface of the first sealing ring 12 is in contact with the inner surface of the mounting body 31, so that the connecting frame body 1 and the mounting body 31 are interference-fitted to form a stable connection state, the air tightness between the connecting frame body 1 and the inflation valve assembly is improved, and the problem of leakage of the fuel after inflation between the connecting frame body 1 and the inflation valve assembly does not occur.

[0071] The mounting body 31 is provided with a first block 311 near the air outlet end.

[0072] The first block 311 is provided with a first through hole 312 for the shaft body 21 to penetrate the space; the diameter of the first through hole 312 is greater than the diameter of the frame body 13 near the air outlet end.

[0073] The mounting body 31, the frame body 13, the first spring 221 and the shaft body 21 are arranged from outside to inside. The frame body 13 is provided with a stepped portion 132 near the air outlet end, and the first sealing ring 12 is sleeved on the stepped portion 132, so that the first sealing ring 12 has a bearing platform in the direction of assembling the connecting frame body 1 to the inflation valve assembly, and the problem of sliding and falling off of the first sealing ring 12 does not occur; in the axial direction projection of the frame body 13, the projection of the first sealing ring 12 intersects with the projection of the first block 311. The problem of the first sealing ring 12 falling off from the connecting frame body 1 near the air outlet end to the outside can be effectively avoided.

[0074] An explosion-proof lighter includes a lighter body, and the lighter body is assembled or integrally provided with an inflation valve assembly. Specifically, the mounting body 31 is integrally formed with the lighter body, or the mounting body 31 is fixedly connected to the lighter body; by assembling or integrally providing the inflation valve assembly, the explosion-proof lighter can be connected to the inflation valve to have an inflation structure.

[0075] The material of the inflation valve assembly includes AS, ABS, POM and nylon, and the inflation valve assembly of the technical solution is made of POM material; specifically, the frame body 13 is made of metal material.

[0076] Embodiment 2

[0077] The embodiment only describes the differences from the above-mentioned embodiments, and other technical features are the same. In the embodiment, the sealing end is replaced by one of a sealing gasket and a colloid.

[0078] Embodiment 3

[0079] The embodiment only describes the differences from the above-mentioned embodiments, and other technical features are the same. In the embodiment, the first boss 11 is arranged to be one or more in a circumferential interval.

[0080] Embodiment 4

[0081] The embodiment only describes the differences from the above-mentioned embodiments, and other technical features are the same. In the embodiment, the first sealing ring can be sleeved at any position of the outer surface of the connecting frame body, and the sealing effect between the connecting frame body 1 and the mounting seat body 31 is achieved.

[0082] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0083] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

[0084] The above-mentioned embodiments of the utility model provide a kind of inflating valve assembly and explosion-proof lighter of the embodiment of the utility model have been described in detail. The principle and implementation mode of the utility model are described in this paper by applying specific examples. The above-mentioned embodiment is only used to help understanding the core idea of the utility model. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. An inflating valve assembly comprising a mounting seat body (31) made of POM material, characterized in that, The installation seat body (31) is internally provided with an inflation valve; The inflation valve comprises a connecting frame body (1), the connecting frame body (1) is provided with a connecting member, the connecting member comprises a first boss (11) arranged on the outer surface of the connecting frame body (1); The outer surface of the first boss (11) is in interference fit with the installation seat body (31).

2. The inflation valve assembly of claim 1, wherein, The connecting member further comprises a sealing end, the outer surface of the sealing end is in abutment with the inner surface of the installation seat body (31).

3. The inflation valve assembly of claim 2, wherein, The sealing end comprises one of a first sealing ring (12), a sealing gasket and a colloid.

4. The inflation valve assembly of claim 3, wherein, The first boss (11) is arranged on the outer surface of the connecting frame body (1) in the radial direction, and the first sealing ring (12) is sleeved on the outer surface of the connecting frame body (1) in the radial direction.

5. The inflation valve assembly of claim 1, wherein, In the axial direction of the connecting frame body (1), the cross section of the first boss (11) is one of a triangle, a quadrilateral and a sector.

6. The inflation valve assembly of claim 3, wherein, The inflation valve is provided with an inflation end and an air outlet end at both ends in the axial direction, the first boss (11) is arranged at one end of the connecting frame body (1) close to the inflation end, and the first sealing ring (12) is arranged at one end of the connecting frame body (1) close to the air outlet end. The inflation valve further comprises a piston assembly (2) movably arranged in the connecting frame body (1); The connecting frame body (1) comprises a frame body (13) and a movable space (14) penetrating through the frame body (13); The piston assembly (2) comprises a shaft body (21) movably arranged in the movable space (14) and an elastic mechanism (22) cooperating with the shaft body (21) to inflate or reach a sealed state; The shaft body (21) is internally provided with an inflation channel (211) for inflation operation, and a sealing block (212) capable of being embedded with the frame body (13) is arranged at one end of the shaft body (21) close to the air outlet end.

7. The inflation valve assembly of claim 6, wherein, The inflation channel (211) comprises a first channel (2111) arranged in the axial direction of the shaft body (21) and a second channel (2112) arranged close to the air outlet end and in communication with the first channel (2111); the second channel (2112) is arranged in the radial direction of the shaft body (21) and is in communication with the outside of the shaft body (21).

8. The inflation valve assembly of claim 7, wherein, The outer surface of the shaft body (21) is sleeved with a second sealing ring (23), and the outer surface of the second sealing ring (23) is in abutment with the inner surface of the frame body (13).

9. The inflation valve assembly of claim 6, wherein, The elastic mechanism (22) comprises a first spring (221) sleeved on the outer surface of the shaft body (21) and a fixed block (222) arranged close to the inflation end of the shaft body (21).

10. A safety lighter comprising a lighter body, characterized in that, The lighter body is assembled or integrally provided with the inflation valve assembly as claimed in any one of claims 1 to 9. The installation seat body (31) is integrally formed with the lighter body, or the installation seat body (31) is fixedly connected to the lighter body.

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