CN206503691U - A kind of inflator with automatic decompression valve - Google Patents

Abstract

The utility model discloses a kind of inflator with automatic decompression valve, it is characterized in that, including outer tube and connected base, interior tube assembly is provided with outer tube, the side of base is connected with outlet tube assembly, piston structure is provided with the bottom of base, piston structure includes second piston, second piston is in the aperture of base bottom, provided with the second non-return rubber and the second non-return spring being connected with each other in second piston, the outside in the aperture of the bottom of base is connected with one end of the self-tapping screw for fixing second piston.Piston structure is retrofitted to the bottom of base by the utility model, and base is directly locked on outer tube using self-tapping screw, and in increase pressure relief inside self-tapping screw, the pressure relief of valve is cancelled, can effectively simplify the assembling of product, the inner space of product is discharged.

Description

A kind of inflator with automatic decompression valve

Technical field

The utility model is related to a kind of inflator with automatic decompression valve, belongs to inflator technical field.

Background technology

The structure of traditional inflator is connected through a screw thread, inside increase piston as shown in figure 1, long tube 2 and base 9 are separated Structure, piston structure includes being put into the first non-return spring 7 of non-return rubber 6 and first in first piston 4, first piston 4, uses work Gag 8 seals the first non-return spring 7 and is spun on first piston 4, and piston structure is spun on the outer tube of base 9 fixed, centre increase First sealing ring 5 is sealed, and bottom reuses a self-tapping screw 10 and sealed.

The position of relief valve is placed on valve, choke rubber stopper 14,16 3 kinds of part groups of pressure release valve rod 15 and pressure release spring Install, be put into the recessed cup 18 of valve, reuse pressure release bonnet 17 and seal.

The shortcoming of traditional inflator structure is：To ensure the function and use requirement that meet inflator, the production used Product part is more, and assembling procedure is more complicated, and assembling requires higher, so that the cost of whole product is higher.

The content of the invention

The technical problems to be solved in the utility model is：There is provided a kind of part is few, assembly and disassembly are simple, functional The inflator with automatic decompression valve, the inner body that solves traditional inflator is more, assembling procedure is complicated, cost is high asks Topic.

In order to solve the above-mentioned technical problem, the technical solution of the utility model there is provided a kind of beating with automatic decompression valve Inflator, it is characterised in that including outer tube and connected base, is provided with interior tube assembly, the side of base is connected with outer tube Piston structure is provided with outlet tube assembly, the bottom of base, piston structure includes second piston, and second piston is located at base bottom Aperture in, provided with the second non-return rubber and the second non-return spring being connected with each other, the aperture of the bottom of base in second piston Outside be connected with one end for the self-tapping screw of fixing second piston.

Preferably, the other end of described self-tapping screw, which is provided with screwed groove, groove, is provided with pressure relief, lets out Laminated structure includes choke rubber stopper, pressure release valve rod and pressure release spring, and the opening of groove is locked by relief valve brass screws.

Preferably, bottom portion of groove connection choke rubber stopper one end in described self-tapping screw, the choke rubber stopper other end Pressure release valve rod one end is connected, the pressure release valve rod other end is connected with pressure release spring one end, pressure release spring other end connection relief valve copper Screw.

Preferably, described outlet tube assembly includes yarn package tube group and the recessed cup of valve being connected with its one end, yarn package tube group Other end auxiliary connection lid, looped pipeline lid is connected by the second sealing ring with base.

Preferably, the second described non-return rubber is located between the second non-return spring and second piston.

Preferably, connected between the aperture of described base bottom and second piston by the 3rd sealing ring.

Preferably, described outer tube is integrated the formula base that is connected to form one with base.

The utility model is simple in construction, part is few, assembly and disassembly are simple, functional, by traditional long tube and base Between the mode that is connected through a screw thread of piston structure be retrofitted to the bottom of base, long tube and base are directly as one, base Directly it is locked in using self-tapping screw on outer tube, while self-tapping screw withstands piston structure, reuses sealing ring sealing, it is to avoid is made With threaded connection, in increase pressure relief inside self-tapping screw, the pressure relief of valve is cancelled, assembling difficulty is reduced, increase The selection of valve is added, can effectively simplify the assembling of product, the inner space of product has been discharged, while adding structural strength And it is attractive in appearance, expense is reduced in terms of cost of parts and human cost two, while ensure that performance.

Brief description of the drawings

Fig. 1 is a kind of overall structure figure of traditional inflator；

Fig. 2 is a kind of three-dimensional exploded view of the inflator with automatic decompression valve；

Fig. 3 is a kind of combination section of the inflator with automatic decompression valve.

Embodiment

To become apparent the utility model, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.

The utility model is that interior tube assembly 1 is provided with a kind of inflator with automatic decompression valve, long tube, and the side of base connects Outlet tube assembly is connected to, as shown in Figure 2 and Figure 3, the mode for increasing piston structure between long tube 2 and base 9 is changed in one The bottom of formula base 19 is put into piston structure, be increased without threaded connection, integrated base 19 by its bottom base and and its The outer tube composition of connection, is provided with interior tube assembly 1 in outer tube, and the side of base is connected with outlet tube assembly, and piston structure includes the Two pistons 21, the second non-return spring 23 of non-return rubber 22 and second is assembled, and is put into the inside of second piston 21 (wherein, second Non-return rubber 22 is located between the second non-return spring 23 and second piston 21), put second piston 21 into integrated base 19 bottom In the aperture in portion, it is further added by the 3rd sealing ring 20 and is used for sealing using, the end of second piston 21 is locked using a self-tapping screw 10 Firmly, it is fixed on integrated base 19, while self-tapping screw 10 withstands second piston 21, second piston 21 pushes down the 3rd sealing ring 20 are used for sealed product, then in the original hexagonal groove increase screw thread in the inside of self-tapping screw 10 and space (i.e. groove), groove Interior to be provided with pressure relief, pressure relief includes choke rubber stopper 14, pressure release valve rod 15 and pressure release spring 16, i.e., by choke rubber stopper 14th, pressure release valve rod 15 and 16 3 kinds of assembling parts of pressure release spring are good, in the groove for being placed in self-tapping screw 10, are further added by relief valve Brass screws 24 is locked on self-tapping screw 10, for fixing relief valve and adjustment vent pressure.Self-tapping screw 10 directly withstands on second On piston 21, second piston 21, which is withstood on the 3rd sealing ring 20, to be used for sealing.

Outlet tube assembly be used for inflator outlet, its recessed cup 18 of valve for including yarn package tube group 13 and being connected with its one end, The other end auxiliary connection lid 12 of yarn package tube group 13, looped pipeline lid 12 is connected by the second sealing ring 11 with base, yarn package tube group 13 Two rubber rings and escape pipe including anti feedback plug, anti feedback plug both sides, the mouth of pipe connection recessed cup 18 of valve of escape pipe.It is interior Tube assembly 1 includes integral type inner tube, piston seat, rubber ring, buffering apron, outer lid.

Whole piston structure is placed on bottom by the utility model, not using threaded connection, is reused self-tapping screw and is fixed And sealing, original pressure relief and self-tapping screw 10 are combined together, i.e., increase pressure release knot in the inside of self-tapping screw 10 Structure, cancels the pressure relief at valve, can effectively simplify the assembling of product, discharges the inner space of product, is ensureing production Moral character can be attractive in appearance with increase product, and production cost is reduced on the basis of simplified product structure.

Claims (7)

1. a kind of inflator with automatic decompression valve, it is characterised in that including outer tube and connected base, is provided with outer tube Interior tube assembly (1), the side of base, which is connected with outlet tube assembly, the bottom of base, is provided with piston structure, and piston structure includes Second piston (21), second piston (21) is in the aperture of base bottom, provided with the be connected with each other in second piston (21) Second piston (21) is fixed in two non-return rubber (22) and the second non-return spring (23), the outside in the aperture of base bottom with being used for One end connection of self-tapping screw (10).

2. a kind of inflator with automatic decompression valve as claimed in claim 1, it is characterised in that described self-tapping screw (10) The other end be provided with screwed groove, pressure relief is provided with groove, pressure relief includes choke rubber stopper (14), pressure release Valve rod (15) and pressure release spring (16), the opening of groove are locked by relief valve brass screws (24).

3. a kind of inflator with automatic decompression valve as claimed in claim 2, it is characterised in that described self-tapping screw (10) Interior bottom portion of groove connection choke rubber stopper (14) one end, choke rubber stopper (14) other end connection pressure release valve rod (15) one end, Pressure release valve rod (15) other end is connected with pressure release spring (16) one end, pressure release spring (16) other end connection relief valve brass screws (24)。

4. a kind of inflator with automatic decompression valve as claimed in claim 1, it is characterised in that described outlet tube assembly bag The recessed cup of valve (18) for including yarn package tube group (13) and being connected with its one end, the other end auxiliary connection lid of yarn package tube group (13) (12), looped pipeline lid (12) is connected by the second sealing ring (11) with base.

5. a kind of inflator with automatic decompression valve as claimed in claim 1, it is characterised in that the second described non-return rubber (22) it is located between the second non-return spring (23) and second piston (21).

6. a kind of inflator with automatic decompression valve as claimed in claim 1, it is characterised in that the hole of described base bottom It is connected between footpath and second piston (21) by the 3rd sealing ring (20).

7. a kind of inflator with automatic decompression valve as claimed in claim 1, it is characterised in that described outer tube is with base Integrally connected formation integrated base (19).