CN201651631U

CN201651631U - Novel pipe joint structure

Info

Publication number: CN201651631U
Application number: CN2009201754443U
Authority: CN
Inventors: 王文魁
Original assignee: 吴科峰
Current assignee: Easun Pneumatic Science and Technology Co Ltd
Priority date: 2009-08-25
Filing date: 2009-08-25
Publication date: 2010-11-24
Anticipated expiration: 2019-08-25

Abstract

The utility model discloses a novel pipe joint structure, which comprises a pipe (5) and a joint body (10), wherein the pipe (5) is connected into the joint body (10) to be sleeved with a sealing ring (9), a compression ring (7) and a reed (1) are pressed on the sealing ring (9), and then a zinc sleeve (6) and a button (8) are sleeved on; the reed (1) is formed by pressing stainless steel plate, the external edge of the reed (1) forms a closed periphery, and a clamping claw (4) at the internal periphery of the reed (1) is occluded with the external wall of the pipe (5); the upper end of the joint body (10), which is riveted and bent, is fixed in the inner hole thereof by a zinc sleeve assembly consisting of the button (8), the zinc sleeve (6), the reed (1), the compression ring (7) and the sealing ring (9), the outer annular part (12) of the reed (1) is bent inward and is contacted with the inner wall (12a) of the maximum hole of the zinc sleeve (6), and the lower edge is propped against by the top end of the compression ring (7); and the clamping claw (4) is of a tongue shape, and is evenly distributed on the internal circle of the reed (1). The utility model makes the joint structure more stable by improving the structure of the reed (1).

Description

A kind of novel pipe coupling structure

Technical field

The utility model relates to a kind of pipe coupling structure, especially relates to a kind of quick coupling structure that is used to connect fluid line.

Background technique

Reed 1 outward edge of similar joint all adopts V-type or the outer breach 2 (as Fig. 1) of U type when feeding the pressure fluid that changes in (see figure 2) and the pipe in the endoporus of pipe 5 insertion reeds 1 in the market, the external diameter of pipe 5 is with the change in pressure of fluid, all the time the inward flange claw 4 that acts on reed 1 from pipe 5 continually varying external force moves (see figure 2) by direction shown in the arrow X all the time, since zinc cover 6 and pressure ring 7 limited reed 1 axially with moving radially, the outward edge barbed portion 2 of reed 1 is constantly opened and is closed up like this, stress just repeats constantly to concentrate on the outer barbed portion 2 of reed 1, thereby cracks and make claw fracture.

The model utility content

For overcoming the deficiencies in the prior art, the utility model provides a kind of reed structure is carried out improved novel pipe coupling structure.

For achieving the above object, the utility model is realized by following technical solution:

A kind of novel pipe coupling structure comprises pipe 5, fittings body 10; Pipe 5 inserts in the fittings body 10 and puts seal ring 9, is pressed with a pressure ring 7 and reed 1 on seal ring 9, puts zinc cover 6 and button 8 subsequently; Described reed 1 is stamped to form by corrosion resistant plate, and the outward edge of reed 1 has formed the circumference of a sealing, the claw 4 and the pipe 5 outer wall interlocks of reed 1 inner circumference; The zinc grip assembly of being made up of button 8, zinc cover 6, reed 1, pressure ring 7, seal ring 9 after bending by riveted joint in fittings body 10 upper end portions is fixed in its endoporus, the outer ring portion 12 of reed 1 curves inwardly, touch the inwall 12a that zinc overlaps 6 largest hole, lower limb is withstood by pressure ring 7 tops simultaneously; Described claw 4 is on the inner circumference that ligule shape is distributed evenly at reed 1, its structure is close central direction part 11a and two straight lines that are parallel to each other of 11b, outwards be retracted on the inward flange 3b circumference then along certain angle, it is excessive that claw 4 and inward flange intersection all are made for fillet, and the outer ring portion 12 of outer rim 3a and inward flange 3b composition keeps certain width simultaneously; Outer ring portion 12 bends on the handing-over circumference of claw 4 and inward flange 3b to the direction that pipe 5 inserts.Described zinc cover 6 is made up of two step holes, and wherein largest hole 12a place step carries out axially reed with radially spacing, cooperates to while and pressure ring 7 interference; Second step hole 12b is used for fixing button 8, and its step matches with the step of button 8; The smallest cylinder that zinc overlaps 6 minimum diameter hole and button 8 cylindricals is a Spielpassung.Ramp structure is adopted in described button 8 underparts, and button 8 is pressed in the zinc cover 6 by press machine.Described pipe 5 inserts in the fittings body 10 by the endoporus of button 8, and pipe 5 passes through reed 1, pressure ring 7, seal ring 9 backs till the bottom in the hole, the 3rd rank of fittings body 10.

Compared with prior art, the beneficial effects of the utility model are: simple in structure, easy for installation, connect firm.

Description of drawings

For ease of understanding the utility model, the spy is further instruction in addition in conjunction with the accompanying drawings.

Fig. 1 is the reed partial structurtes schematic representation of prior art;

Fig. 2 is the joint mounting structure cross-sectional schematic of prior art;

Fig. 3 is a reed structure schematic representation of the present utility model;

Fig. 4 is a joint mounting structure cross-sectional schematic of the present utility model.

Embodiment

For the ease of understanding the utility model, the spy is further described in conjunction with embodiment, but present embodiment should not regarded as any restriction of the present utility model.

This reed is mainly used in the push-in PNEUMATIC TUBE joint, and the structural drawing of this pipe joint is seen Fig. 4, and this joint is made up of fittings body 10, seal ring 9, pressure ring 7, reed 1, zinc cover 6 and button 8.Fittings body 10 is generally processed by easy smear metal metal, its threaded end can be screwed into to play in the internal thread and connect and seal action, bend and will be fixed in its endoporus by the zinc grip assembly that button 8, zinc cover 6, reed 1, pressure ring 7, seal ring 9 are formed by riveted joint in its upper end portion, prevent that under gas pressure, the zinc grip assembly is deviate from from endoporus.At fittings body 10 the 2nd step from the top down Sealing 9 is set, the leakage of the body that is used to prevent to calm the anger.The edge that reed 1 is bent is pushed down into the bottom of zinc cover largest hole.

Pressure ring 7 is usually by metallic material die casting or plastic materials molding and forming, requirement has intensity preferably, pressure ring 7 overlaps maximum endoporus interference ground with zinc and cooperates, its top is with maximum diameter place, reed bottom dieback, prevent reed 1 play in the axial direction, its shape diameter from top to bottom (as Fig. 4, is promptly inserted sub-direction diameter along pipe and is diminished gradually) from large to small, can limit like this that reed bends that inside part 4a (see figure 3) exceeds its limit of elasticity under button is pressed and can't resilience.

Reed 1 is stamped to form by corrosion resistant plate, following characteristics (as Fig. 3) are arranged on its structure: ligule shape claw 4 is distributed evenly on the inner circumference, its structure is close central direction part 11a and two straight lines that are parallel to each other of 11b, outwards be retracted on the inward flange 3b circumference then along certain angle, improved 1 pair of pulling-out force that inserts the pipe of its endoporus of reed so on the one hand, strengthened the elasticity of reed 1 on the other hand, it is excessive that claw 4 and inward flange intersection all are made for fillet, and the outer part 12 of outer rim 3a and inner edge 3b composition must keep certain width simultaneously.The crooked (see figure 3) of direction that outer ring portion 12 is inserted to pipe, as can see from Figure 3, outer ring portion bent position A preferably is positioned on the circumference of claw 4 and inward flange 3b handing-over.

Zinc cover 6 shapes by smear metal usually, is made up of two step holes, and wherein that reed is carried out axial-radial is spacing for largest hole 12a place step.Cooperate with pressure ring 7 interference ground simultaneously, limited reed in axial moving, second step hole 12b is used for fixing button 8, its step matches with the step of button 8, prevented effectively button 8 be subjected to axial force do the time spent and zinc cover 6 breaks away from, zinc overlaps 6 minimum diameter hole and cooperates with the smallest cylinder of button 8 cylindricals, moving up and down of button 8 has been played the effect of guiding.

Button 8 is general injection molded by wear-resisting plastic materials, and ramp structure is adopted in its underpart, and this inclined-plane contacted steering surface contact gradually with contacting by line of reed 1 when button down moved like this, had increased the lifting surface area of reed 1 with button 8.Button 8 is pressed in the zinc cover 6 by force by press machine, is Spielpassung because zinc overlaps the smallest cylinder of 6 minimum diameters and button 8 cylindricals, and when pressing button 8, under the elastic force effect of reed 1, button can move freely in the axial direction like this.

In above-mentioned pipe coupling, pipe 5 inserts in the fittings body 10 by the endoporus of button 8, and pipe 5 is by reed 1, pressure ring 7, seal ring 9, till the bottom in the hole, the 3rd rank of fittings body 10.

When inserting pipe 5, because the outer ring portion 12 of reed 1 curves inwardly, touch the inwall 12a of zinc cover largest hole, lower limb is withstood by pressure ring 7 tops simultaneously, so reed 1 can not move down with pipe 5.Because the claw 4 of reed 1 contacts with the outer peripheral surface of pipe 5 obliquely, when therefore axially outwards spurring pipe 5, the outer peripheral surface of pipe 5 is tightly bitten at the edge of claw 4, thereby pipe 5 is fixed in the fittings body 10 firmly, therefore when feeding the fluid of certain pressure in the pipe 5, pipe 5 can not break away from fittings body 10 yet.

Claims

1. a novel pipe coupling structure comprises pipe (5), fittings body (10); Pipe (5) inserts in the fittings body (10) and puts seal ring (9), is pressed with a pressure ring (7) and reed (1) on seal ring (9), puts zinc cover (6) and button (8) subsequently; It is characterized in that: reed (1) is stamped to form by corrosion resistant plate, and the outward edge of reed (1) has formed the circumference of a sealing, the claw (4) of reed (1) inner circumference and pipe (5) outer wall interlock; The zinc grip assembly that fittings body (10) upper end portion is made up of button (8), zinc cover (6), reed (1), pressure ring (7), seal ring (9) after bending by riveted joint is fixed in its endoporus, the outer ring portion (12) of reed (1) curves inwardly, touch the inwall (12a) of zinc cover (6) largest hole, lower limb is withstood by pressure ring (7) top simultaneously.

2. novel pipe coupling structure according to claim 1, it is characterized in that: described claw (4) is on the inner circumference that ligule shape is distributed evenly at reed (1), its structure is near central direction part (11a) and (11b) two straight lines that are parallel to each other, outwards be retracted on inward flange (3b) circumference then along certain angle, it is excessive that claw (4) and inward flange intersection all are made for fillet, and outer rim (3a) keeps certain width with the outer ring portion (12) of inward flange (3b) composition simultaneously; Outer ring portion (12) bends on the handing-over circumference of claw (4) and inward flange (3b) to the direction that pipe (5) inserts.

3. novel pipe coupling structure according to claim 1 and 2 is characterized in that: described zinc cover (6) is made up of two step holes, and wherein largest hole (12a) is located step reed is carried out axially cooperating with pressure ring (7) interference ground simultaneously with radially spacing; Second step hole (12b) is to be used for fixing button (8), and its step matches with the step of button (8); The smallest cylinder of zinc cover (6) minimum diameter hole and button (8) cylindrical is a Spielpassung.

4. novel pipe coupling structure according to claim 1 is characterized in that: ramp structure is adopted in described button (8) underpart, and button (8) is pressed in the zinc cover (6) by press machine.

5. novel pipe coupling structure according to claim 1, it is characterized in that: described pipe (5) inserts in the fittings body (10) by the endoporus of button (8), and pipe (5) passes through reed (1), pressure ring (7), seal ring (9) back till the bottom in the hole, the 3rd rank of fittings body (10).