CN202546091U - Quick coupling - Google Patents

Abstract

The utility model relates to a quick coupling which is provided with a main body, a locating seat, a valve seat and a shell, wherein the main body is provided with an air inlet chamber, a clamping groove and a screwing groove; two seal rings, a pressure ring and a spacing socket ring are arranged in the clamping groove; the locating seat is detachablely screwed with the main body, and provided with an air outlet chamber, a return spring, a plurality of sheathing holes and a plurality of locating beads; the valve seat is movably arranged between the main body and the locating seat, and provided with at least one air inlet; and the shell is movably sheathed between the main body and the locating seat, and provided with a spring groove, a spacing ring groove and a butt spring. Thus, the quick coupling provided by the utility model is convenient to assemble and safe to use, and has the advantages of high applicability and favorable sealability.

Description

Rapid pipe joint

Technical field

The utility model is about a kind of rapid pipe joint, refers to a kind of ease of assembly, applicability height, safe handling and the good rapid pipe joint person of seal especially.

Background technique

Please cooperate referring to existing rapid pipe joint 80 as shown in Figure 9; It is used for the linking of pipeline and is provided with a body 81, a valve seat 82 and a frame 83; Wherein this body 81 be by several cylindrical shells combine form; Be to be provided with a Returnning spring 811, a sealing ring 812 and a plurality of positioning bead 813 in inside, the sealing collar 812 is to recline mutually with this Returnning spring 811 and be concaved with a sheathed groove 814 in inside, in this sheathed groove 814, is to be provided with a seal ring 815; And each positioning bead 813 is the rear end that are arranged at intervals at body 81; This valve seat 82 is to be located at movably in this body 81, and this Returnning spring 811 is sheathed outer surfaces that are incorporated into this valve seat 82, and the outer surface of this valve seat 82 is to lean with each positioning bead 813; This frame 83 is to be sheathed on the outside of this body 81 movably and to be provided with a spring groove 831, a clamping trough 832 and a pushing clamping spring 833; This spring groove 831 is the internal surfaces that are arranged with in this frame 83 1 ends, and this clamping trough 832 is to be located at the internal surface of these frame 83 the other ends and to lean with each positioning bead 813, and this pushing clamping spring 833 is to be sheathed on the outer surface of this body 81 and to be located in this spring groove 831;

Yet though existing rapid pipe joint 80 can provide the effect on a quick connecting pipe road, existing rapid pipe joint 80 during fabrication; Not only sealing circle 815 is not easy to be installed in the sheathed groove 814 of this sheathed ring 813, and when inserting this valve seat 82 in the body 81, produces extrusion-deformation for seal ring 815 easily; Even the situation of galling seal ring 815, and then the sealing effect of the existing rapid pipe joint 80 of influence, and valve seat 82 structures of existing rapid pipe joint 80; Only can with the mutually sheathed combination of the tool joint pin of specific dimensions, limit the applicability of rapid pipe joint 80 relatively, in addition; Existing rapid pipe joint 80 is in extracting the tool joint pin process, and still undischarged high pressure air is known from experience and produced an impulse force and promote this tool joint pin, and then operator's situation takes place when tool joint pin separates with this body 81 to injure because of the impulse force of pressurized gas; Moreover the internal surface system of existing rapid pipe joint 80 bodies 81 front ends is a flat, and bigger gas flow space can't be provided; And then influence the fluency of gas, improvements are in addition really arranged.

Summary of the invention

Therefore, with not enough, continuous test of special process and research develop the utility model that the existing disappearance of a kind of ability improvement to the utility model finally in view of the disappearance that has quick coupling structure and operation now.

The utility model mainly is to provide a kind of rapid pipe joint, and it is to see through the structural arrangements of simplifying, and then the purpose person of the good rapid pipe joint of an ease of assembly, applicability height, safe handling and seal is provided.

Based on above-mentioned purpose, the major technique means of the utility model are to provide a kind of rapid pipe joint, and it is provided with a body, a positioning seat, a valve seat and a frame, wherein:

This body is provided with one and screws togather an end and a connecting end; This body interior is to screw togather end by this to be provided with a suction chamber, card that an internal diameter is little than this suction chamber in regular turn towards this connecting end direction and to establish groove and and establish the groove that screws togather that groove communicates with this card, and this body is established in this card and is provided with one first seal ring, in the groove and is located at second seal ring and one and the spacing collar that reclines mutually of this compressing ring and second seal ring of this compressing ring inner surface with the compressing ring, that this first seal ring reclines mutually;

This positioning seat is removably to be screwed with this body and to be provided with a spiral shell fixed end and to be inserted in end; This spiral shell fixed end is to stretch in the connecting end of this body and screw togather with this that groove is screwed and lean with this spacing collar; This positioning seat be inserted in the end be to communicate with this spiral shell fixed end; This positioning seat is to be provided with one to establish the discharge chamber that groove and suction chamber communicate with this card in inside; In this discharge chamber, be provided with the Returnning spring that reclines mutually with this spacing collar, this positioning seat runs through in the interval of being inserted in the outer surface of end near this and is provided with a plurality of sheathed holes that communicate with this discharge chamber, and in each sheathed hole, is provided with a positioning bead;

This valve seat is to be located between this body and this positioning seat movably and to be provided with a closed end and an open end; The closed end of this valve seat is to stretch in the suction chamber of this body through this spacing collar, second seal ring and compressing ring; This valve seat is to run through to be provided with at least one suction port that communicates with this body suction chamber on the outer surface near this closed end, and this Returnning spring is the sheathed outer surface that is incorporated into this valve seat and between the open end of this spacing collar and this valve seat; And

This frame is to be sheathed between this body and this positioning seat movably and to be provided with a spring groove, a limited ring groove and a pushing clamping spring; Wherein this spring groove be arranged with in the internal surface of this frame one end and be sheathed on this body and this positioning seat between; This limited ring groove is that annular is arranged with in the other end of this frame and corresponding with each sheathed hole of this positioning seat; Each positioning bead rollably is located between each sheathed hole and this limited ring groove, and this pushing clamping spring system is sheathed on the outer surface of this positioning seat and two ends system is resisted against respectively between the connecting end and this spring groove of this body.

Further, this positioning seat is penetrated with a plurality of bleeder ports that communicate with this discharge chamber at the interval of the outer surface between between this spiral shell fixed end and each sheathed hole.

Further again, this suction chamber is to be a flaring shape near an end that screws togather end, and the end that suction chamber is established groove near card is to be a gradually-reducing shape.

Preferably, this body is to be provided with a screw thread in this internal surface that screws togather end.

Preferably, this body is to be provided with a screw thread in this outer surface that screws togather end.

Preferably; This valve seat is in being that annular is concaved with one and combines an annular groove and a sheathed annular groove near this open end internal surface; And in this combination annular groove and this sheathed annular groove is to be respectively equipped with one the 3rd seal ring and a sheathed ring, uses when a tool joint pin is inserted to fit tightly with this valve seat.

Can know by above-mentioned technological means; The utility model rapid pipe joint is when making and assemble; Mainly be to see through the mode that this positioning seat and this body are screwed and lock; This two seal ring, this compressing ring and this spacing collar can be received under the effect of this positioning seat spiral shell fixed end and the dual pushing and pressing of this Returnning spring simultaneously, and the card that can firmly be arranged at this body is established in the groove, and then this valve seat one sealing effect (comprising standstill seal state that does not insert tool joint pin and the dynamic seal (packing) state that inserts tool joint pin) closely is provided; Reach better firm sealing effect; And can have to see through the mode that this spacing collar is set, effectively avoid when the assembling valve seat, producing the situation of extrusion-deformation even galling, reduce assembling required cost and time relatively for second seal ring;

Moreover, see through the mode that the 3rd seal ring and sheathed ring are set in this valve seat, the rapid pipe joint of the utility model can be combined with the tool joint pin of different size; In addition; Extracting in tool joint pin moment, can see through each bleeder port will manage in residual pressurized gas discharge, effectively reduce the adverse current of residual pressurized gas and dash cruelly; And then when avoiding this tool joint pin to separate with positioning seat because of the sudden and violent situation that injures the operator of dashing of pressurized gas; And see through the two ends that this suction chamber is the flaring shape and is gradually-reducing shape, and then improve the fluency of gas flow, use formation one ease of assembly, applicability height, safe handling and the good rapid pipe joint person of seal.

Description of drawings

Fig. 1 is the three-dimensional appearance schematic representation of the utility model rapid pipe joint.

Fig. 2 is the perspective exploded view of the utility model rapid pipe joint.

Fig. 3 is the diagrammatic cross-sectional side elevation of the utility model rapid pipe joint.

Fig. 4 is another diagrammatic cross-sectional side elevation of the utility model rapid pipe joint.

The three-dimensional appearance schematic representation that Fig. 5 combines with a tool joint pin for the utility model rapid pipe joint.

Fig. 6 is the section operation schematic side view of the utility model rapid pipe joint.

Fig. 7 is another section operation schematic side view of the utility model rapid pipe joint.

Fig. 8 A is another embodiment's outward appearance schematic side view of the utility model rapid pipe joint.

Fig. 8 B and 8C are the three-dimensional appearance schematic representation that the utility model rapid pipe joint combines with the tool joint pin of different size.

Fig. 9 is the part section schematic perspective view of an existing rapid pipe joint.

[primary component symbol description]

10 bodies 11 screw togather end

111 screw threads, 12 connecting ends

13 suction chambers, 14 cards are established groove

15 screw togather groove 16 first seal rings

17 compressing rings, 18 second seal rings

The 19 spacing collar 20 positioning seats

21 spiral shell fixed ends 22 are inserted in end

23 discharge chambers, 24 Returnning springs

25 sheathed holes, 26 positioning beads

27 bleeder ports, 30 valve seats

31 closed ends, 32 open ends

33 suction ports 34 combine annular groove

35 sheathed annular groove 36 the 3rd seal rings

37 sheathed ring 40 framies

41 spring grooves, 42 limited ring grooves

60 tool joint pins of 43 pushing clamping springs

80 rapid pipe joints of 61 engagement grooves

81 bodies, 811 Returnning springs

812 sealing rings, 813 positioning beads

814 sheathed groove 815 seal rings

82 valve seats, 83 framies

831 spring grooves, 832 clamping troughs

833 pushing clamping springs

Embodiment

Technical characteristics and practical effect for ability detail knowledge the utility model; And can implement according to the content of specification; Now further with like the preferred embodiment shown in graphic, specify as after, see also shown in Fig. 1 to 3; The rapid pipe joint of the utility model (M type) is to be provided with a body 10, a positioning seat 20, a valve seat 30 and a frame 40, wherein:

This body 10 is to be provided with one to screw togather end 11 and one connecting end 12; Wherein the end 11 that screws togather of this body 10 is to combine with air compressor (figure does not show) in order to one; Shown in Fig. 3 or Fig. 8 A; This body 10 is to be provided with a screw thread 111 in internal surface or the outer surface that this screws togather end 11; The inside of this body 10 is to screw togather end 11 by this to be provided with the suction chamber 13, an internal diameter that communicate with air compressor in regular turn towards these connecting end 12 directions and to establish groove 14 and than these suction chamber 13 little cards and screw togather groove 15 with this card establishes that groove 14 communicates; Wherein this suction chamber 13 is to be a flaring shape near an end that screws togather end 11; And the end that suction chamber 13 is established groove 14 near card is to be a gradually-reducing shape, and then improves the fluency of gas flow, this body 10 in this card establish in the groove 14 be provided with one first seal ring 16, one with the compressing ring 17, that this first seal ring 16 reclines mutually be located at this compressing encircle 17 internal surfaces second seal ring 18 and one and this compressing encircle the spacing collar 19 that 17 and second seal ring 18 reclines mutually;

This positioning seat 20 is removably to be screwed with this body 10 and to be provided with a spiral shell fixed end 21 and to be inserted in end 22; The spiral shell fixed end 21 of this positioning seat 20 is to stretch in the connecting end 12 of this body 10 and screw togather with this that groove 15 is screwed and lean with this spacing collar 19; Make two seal rings 16; 18 and this compressing ring 17 card that can firmly be arranged at this body 10 establish in the groove 14; The end 22 that is inserted in of this positioning seat 20 as shown in Figure 5 is to communicate with this spiral shell fixed end 21 and use to insert for a tool joint pin 60 and use; This positioning seat 20 is to be provided with one to establish the discharge chamber 23 that groove 14 and suction chamber 13 communicate with this body 10 cards in inside; And in this discharge chamber 23, be provided with the Returnning spring 24 that reclines mutually with this spacing collar 19, this positioning seat 20 is to run through at interval to be provided with a plurality of sheathed holes 25 that communicate with this discharge chamber 23 in the outer surface that is inserted in end 22 near this, and in each sheathed hole 25, is provided with a positioning bead 26; Please cooperate referring to shown in 2 and 4, this positioning seat 20 is to be penetrated with a plurality of bleeder ports 27 that communicate with this discharge chamber 23 at interval at 25 between this spiral shell fixed end 21 and each sheathed hole outer surface in addition;

This valve seat 30 is located between this body 10 and this positioning seat 20 movably and is provided with a closed end 31 and an open end 32; The closed end 31 of this valve seat 30 is to stretch in the suction chamber 13 of this body 10 through this spacing collar 19, second seal ring 18 and compressing ring 17; This valve seat 30 is to run through to be provided with at least one suction port 33 that communicates with these body 10 suction chambers 13 on the outer surface near this closed end 31; This Returnning spring 24 is sheathed outer surfaces that are incorporated into this valve seat 30 and between the open end 32 of this spacing collar 19 and this valve seat 30; Preferably; This valve seat 30 is in being that annular is concaved with one and combines an annular groove 34 and a sheathed annular groove 35 near these open end 32 internal surfaces; And in this combination annular groove 34 and this sheathed annular groove 35 is to be respectively equipped with one the 3rd seal ring 36 and a sheathed ring 37, uses when a tool joint pin 60 is inserted to fit tightly with this valve seat 30; And

This frame 40 is to be sheathed between this body 10 and this positioning seat 20 movably and to be provided with a spring groove 41, a limited ring groove 42 and a pushing clamping spring 43; Wherein this spring groove 41 is to be arranged with in the internal surface of this frame 40 1 ends and to be sheathed between this body 10 and this positioning seat 20; This limited ring groove 42 is that annular is arranged with in the other end of this frame 40 and corresponding with the sheathed hole of each of this positioning seat 20 25; Make each positioning bead 26 rollably be located at 42 of each sheathed hole 25 and this limited ring grooves; This frame 40 is is located at movably between this body 10 and this positioning seat 20, this pushing clamping spring 43 is to be sheathed on the outer surface of this positioning seat 20 and two ends are to be resisted against respectively between the connecting end 12 and this spring groove 41 of this body 10.

Please referring to shown in Fig. 3 and 4, the utility model rapid pipe joint is not when using, because valve seat 30 receives the ejection of Returnning spring 24; The closed end 31 that makes valve seat 30 is to be resisted against this compressing ring 17 places and to be the state that a gas opens circuit, moreover, screw togather end 11 and an air compressor (scheming not show) when combining when body 10; Receive the effect of body 10 internal gas pushing and pressing; Make these valve seat 30 closed ends 31 be secured in this compressing and encircle 17 places and do not have disappointing situation, moreover, when the rapid pipe joint of assembling the utility model; Can see through this second seal ring 18 is positioned the mode between this compressing ring 17 and this spacing collar 19; But ease of assembly and can increase the sealing effect of rapid pipe joint not only, and see through the mode that this spacing collar 19 is set, in the time of can avoiding this valve seat 30 to insert effectively; Produce extrusion-deformation for second seal ring 18, even the situation of fraying second seal ring 18;

Please cooperate referring to as shown in Figure 5; When the tool joint pin 60 that has an annular engagement groove 61 when the utility model rapid pipe joint and one combines; At first be as shown in Figure 6; The end that the mode that can see through one-handed operation be provided with tool joint pin 60 annular engagement groove 61 inserts in this valve seat 30 with discharge chamber 23 and closely reclines with this sheathed ring 37 and the 3rd seal ring 39 through the end 22 that is inserted in of this positioning seat 20; Make this valve seat 30 screw togather end 11 direction and move, and then let at least one suction port 33 of this valve seat 30 communicate, when the engagement groove 61 of this tool joint pin 60 moves to the sheathed hole 25 of each of this positioning seat 20 with the suction chamber 13 of this body 10 towards this body 10; Each positioning bead 26 can move towards these engagement groove 61 directions; Make this frame 40 through the promotion of pushing clamping spring 432 and move, each positioning bead 26 is arranged between the engagement groove 61 and this frame 40 internal surfaces of this tool joint pin 60, this tool joint pin 60 is firmly combined with this positioning seat 20 towards the direction of this tool joint pin 60;

When this tool joint pin 60 combines through each positioning bead 26 and with this positioning seat 20; The closed end 31 of this valve seat 30 can move towards end 11 directions that screw togather of this body 10; And then make at least one suction port 33 of this valve seat 30 be an aeration status with this suction chamber 13; Promptly accomplish the grafting operation of this tool joint pin 60, at this moment, can get in this tool joint pin 60 with this valve seat 30 through the discharge chamber 13 of this body 10 by the pressurized gas that this air compressor produced.

Please cooperate referring to as shown in Figure 7; When desire is separated this tool joint pin 60 with this positioning seat 20; Then be to see through towards these body 10 directions to promote this frame 40 and compress this pushing clamping spring 43; And this tool joint pin 60 is inserted in end 22 direction towards this positioning seat 20 pulls out; Each positioning bead 26 is moved in the limited ring groove 42 of this frame 40 and be separated, can easily this tool joint pin 60 be separated with this positioning seat 20, wherein with in this tool joint pin 60 and these positioning seat 20 phase separations with the engagement groove 61 of this tool joint pin 60; When this valve seat 30 receives the promotion of this Returnning spring 24 and returns to initial position as shown in Figure 3; When making this rapid pipe joint be the state that a gas opens circuit, with in the pneumatic tool that this tool joint pin 60 is connected residual high pressure air know from experience along with tool joint pin 60 adverse currents to this rapid pipe joint, and each bleeder port 27 that is arranged in these positioning seat 20 middle sections can disperse the pressurized gas of this adverse current to discharge from this positioning seat 20; Can effectively reduce the adverse current impulse force of pressurized gas, and then the adverse current because of pressurized gas is dashed the situation that injures the operator cruelly when avoiding this tool joint pin 60 to separate with positioning seat 20; Moreover shown in Fig. 8 B and 8C, the utility model rapid pipe joint sees through the mode that the 3rd seal ring 36 and sheathed ring 37 are set in this valve seat 30, the rapid pipe joint of the utility model can be combined with the tool joint pin 60A or the 60B of different size (like A type or T type etc.).

Can know by above-mentioned technological means; The utility model rapid pipe joint is when making and assemble; Mainly be to see through this positioning seat 20 and the mode that this body 10 is screwed and locks, this two seal ring 16,18, this compressing ring 17 and this spacing collar 19 can be received under the effect of these positioning seat 20 spiral shell fixed ends 21 and the 24 dual pushing and pressing of this Returnning spring simultaneously; The card that can firmly be arranged at this body 10 is established in the groove 14; And then this valve seat 30 1 sealing effect (comprising standstill seal state that does not insert tool joint pin and the dynamic seal (packing) state that inserts tool joint pin) closely is provided, reach better firm sealing effect, and the mode that this spacing collar 19 is set that sees through can be arranged; Effectively avoid when assembling valve seat 30, producing the situation of extrusion-deformation even galling, reduce assembling required cost and time relatively for second seal ring 18;

Moreover, see through the mode that the 3rd seal ring 36 and sheathed ring 37 are set in this valve seat 30, the rapid pipe joint of the utility model can be combined with the tool joint pin 60A or the 60B of different size; In addition, extracting tool joint pin 60,60A; 60B is in moment, and residual pressurized gas are discharged in can will managing through each bleeder port 27, effectively reduce dashing cruelly of residual pressurized gas; And then avoid this tool joint pin 60; Adverse current because of pressurized gas when 60A, 60B separate with positioning seat 20 is dashed the situation that injures the operator cruelly, and sees through the two ends that this suction chamber 13 is the flaring shape and is gradually-reducing shape; And then the fluency of raising gas flow, use formation one ease of assembly, applicability height, safe handling and the good rapid pipe joint person of seal.

The above; Only being the preferred embodiment of the utility model, is not that the utility model is done any pro forma restriction, has common knowledge the knowledgeable in any affiliated technical field; If in the scope that does not break away from technological scheme that the utility model is put forward; Utilize technology contents that the utility model discloses to do the local equivalent embodiment who changes or modify, and do not break away from the technological scheme content of the utility model, all still belong in the scope of the utility model technological scheme.

Claims (8)

1. a rapid pipe joint is characterized in that, includes a body, a positioning seat, a valve seat and a frame, wherein:

Said body is provided with one and screws togather an end and a connecting end; Said body interior is to be provided with a suction chamber, card that the more said suction chamber of an internal diameter is little in regular turn towards said connecting end direction and to be established groove and and establish the groove that screws togather that groove communicates with this card by the said end that screws togather, and said body is established in said card and is provided with one first seal ring, in the groove and is located at second seal ring and one and the spacing collar that reclines mutually of said compressing ring and second seal ring of this compressing ring inner surface with the compressing ring, that said first seal ring reclines mutually;

Said positioning seat is removably to be screwed with said body and to be provided with a spiral shell fixed end and to be inserted in end; Said spiral shell fixed end is to stretch in the connecting end of said body and screw togather that groove is screwed and lean with the said spacing collar with said; The end that is inserted in of said positioning seat communicates with said spiral shell fixed end; Said positioning seat is to be provided with one to establish the discharge chamber that groove and suction chamber communicate with said card in inside; Be provided with the Returnning spring that reclines mutually with the said spacing collar in the said discharge chamber, said positioning seat is in being to run through at interval to be provided with the sheathed hole that a plurality of and said discharge chamber communicates near the said outer surface that is inserted in end, and in each sheathed hole, is provided with a positioning bead;

Said valve seat is to be located between said body and the said positioning seat movably and to be provided with a closed end and an open end; The closed end of said valve seat is to stretch in the suction chamber of said body through the said spacing collar, second seal ring and compressing ring; Said valve seat is to run through to be provided with the suction port that at least one and said body suction chamber communicates on the outer surface near said closed end, and said Returnning spring is the sheathed outer surface that is incorporated into said valve seat and between the open end of the said spacing collar and said valve seat; And

Said frame is to be sheathed between said body and the said positioning seat movably and to be provided with a spring groove, a limited ring groove and a pushing clamping spring; Wherein said spring groove system be arranged with in the internal surface of said frame one end and be sheathed on said body and said positioning seat between; Said limited ring groove is that annular is arranged with in the other end of said frame and corresponding with each sheathed hole of said positioning seat; Each positioning bead rollably is located between each sheathed hole and said limited ring groove, and said pushing clamping spring is to be sheathed on the outer surface of said positioning seat and two ends are to be resisted against respectively between the connecting end and said spring groove of said body.

2. rapid pipe joint as claimed in claim 1, wherein said positioning seat is penetrated with the bleeder port that a plurality of and said discharge chamber communicates at the interval of the outer surface between between said spiral shell fixed end and each sheathed hole.

3. rapid pipe joint as claimed in claim 2, wherein said suction chamber are to be a flaring shape near an end that screws togather end, and the end that suction chamber is established groove near card is to be a gradually-reducing shape.

4. rapid pipe joint as claimed in claim 3, wherein said body is to be provided with a screw thread in the said internal surface that screws togather end.

5. rapid pipe joint as claimed in claim 3, wherein said body is to be provided with a screw thread in the said outer surface that screws togather end.

6. like each described rapid pipe joint in the claim 1 to 5; Wherein said valve seat is in being that annular is concaved with one and combines an annular groove and a sheathed annular groove near said open end internal surface; And be to be respectively equipped with one the 3rd seal ring and a sheathed ring in said combination annular groove and said sheathed annular groove, use when a tool joint pin is inserted and to fit tightly with said valve seat.

7. according to claim 1 or claim 2 rapid pipe joint, wherein said body is to be provided with a screw thread in the said internal surface that screws togather end.

8. according to claim 1 or claim 2 rapid pipe joint, wherein said body is to be provided with a screw thread in the said outer surface that screws togather end.

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