A rotary push-press pipe joint

Abstract

The present invention discloses a rotary push-press pipe joint, which includes a joint body, a seal, a locking mechanism, a push-press mechanism, a rotary mechanism and a locking mechanism. The joint body has a plurality of interface ends for connecting pipes; the push-press mechanism is located inside the interface end, axially pushing the seal to form compressive sealing and axially pushing the locking mechanism to form compressive locking; the rotary mechanism is located at the interface end. By rotating the rotary mechanism, it drives the push-press mechanism to move axially in a straight line to push or release the seal and the locking mechanism; the locking mechanism is located at the interface end. When the rotary mechanism rotates in place, the rotary mechanism or the push-press mechanism is fixed at the interface end. The rotary push-press pipe joint provided by the present invention can achieve the sealing and locking of the pipe in the joint body by rotating the rotary mechanism, without the need to use tools, and the installation is convenient and fast; after installation, the connection is stable, not affected by large deviations or deformations of the pipe outer diameter, and can withstand large fluid pressures.

Description

Technical Field

[0001] The present invention relates to a pipe joint, and specifically to a rotary pressing pipe joint. Background Art

[0002] There are two existing methods for installing pipe joints. One is threaded connection. When installing, the pipe is inserted into the joint, and corresponding tools are used to tighten the threads at both ends of the joint to achieve the connection. The other is clamp connection, which uses bolts for connection and installation. Both connection methods require special tools, and the installation and disassembly are inconvenient, time-consuming and laborious. In addition, for occasions where the outer diameter deviation of the pipe is large or the pipe is deformed, and the fluid pressure is large, it is easy to have an insecure connection, and in severe cases, fluid leakage occurs.

[0003] Therefore, it is necessary to solve the above technical problems. Summary of the Invention

[0004] In view of the above technical problems, the present invention provides a rotary pressing pipe joint. By rotating the rotating mechanism, the sealing and locking of the pipe in the joint body can be achieved without the use of tools, and the installation is convenient and fast. After installation, the connection is stable, not affected by large outer diameter deviation or deformation of the pipe, and can withstand a large fluid pressure.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A rotary pressing pipe joint, comprising:

[0007] A joint body having an interface end, and the following connecting mechanisms are provided at the interface end;

[0008] A seal;

[0009] A locking mechanism;

[0010] A pressing mechanism having a degree of freedom of axial linear motion, axially pressing the seal to form a compression seal, and axially pressing the locking mechanism to form a compression lock;

[0011] A rotating mechanism that restricts its degree of freedom of axial linear motion and has a degree of freedom of rotational motion direction. Rotating the rotating mechanism drives the pressing mechanism to perform axial linear motion to press or release the seal and the locking mechanism; and

[0012] A locking mechanism that fixes the rotating mechanism or the pressing mechanism at the interface end when the rotating mechanism rotates in place.

[0013] For the above-mentioned rotary pressing pipe joint, the seal is located between the inner wall of the interface end and the outer wall of the pipe. The locking mechanism locks the pipe. By rotating the rotating mechanism, the sealing and locking of the pipe within the joint body can be achieved without the use of tools, and the installation is convenient and fast.

[0014] Furthermore, the locking mechanism is a disc spring which has a number of pointed teeth that bite into the pipe. The disc spring with pointed teeth locks the pipe, being not affected by large deviations in the outer diameter of the pipe or deformation, and the locking is firm.

[0015] Furthermore, the pressing mechanism includes a seal pressing sleeve and a locking member pressing sleeve. The seal pressing sleeve axially presses the seal, and the locking member pressing sleeve axially presses the locking mechanism.

[0016] Furthermore, the pressing mechanism includes:

[0017] A seal pressing sleeve, with the seal provided at one end and a first end face at the other end, where the disc spring is provided to limit the freedom of rotation of the seal pressing sleeve in the internal rotation direction of the interface end; and

[0018] A locking member pressing sleeve, with the disc spring fixed at one end and a second end face at the other end, to limit the freedom of rotation of the locking member pressing sleeve in the internal rotation direction of the interface end;

[0019] The rotating mechanism includes a rotating sleeve located inside the interface end, having a third end face and a fourth end face. The third end face cooperates with the first end face, and the fourth end face cooperates with the second end face;

[0020] Wherein, a number of inclined end faces are respectively provided on the first end face, the second end face, the third end face and the fourth end face; when the rotating sleeve is rotated, the mutually cooperating inclined end faces move relative to each other. The cooperation between the third end face and the first end face is divided into two extreme states, namely complete engagement and complete disengagement, and the cooperation between the fourth end face and the second end face is divided into two extreme states, namely complete engagement and complete disengagement; when moving from complete engagement to complete disengagement respectively, the seal is first pressed tightly to form a seal, and then the disc spring is compressed to force the pointed teeth to bite into the pipe to lock the pipe.

[0021] By the cooperation of the inclined end faces of the rotating sleeve with the seal pressing sleeve and the locking member pressing sleeve respectively, the rotational movement of the rotating sleeve is converted into the axial pressing actions of the seal pressing sleeve and the locking member pressing sleeve, pressing the seal tightly to form a seal and pressing the disc spring to lock the pipe. The operation is simple, and the installation is convenient and fast. The end face cooperation has better force bearing and can withstand a larger fluid pressure.

[0022] Furthermore, a number of first cylindrical pins are provided on the outer cylindrical surface of the locking member pressing sleeve;

[0023] The cylindrical surface of the rotating sleeve is provided with a plurality of first combined holes, which are a first straight hole and a first inclined hole connected to each other. The first straight hole is perpendicular to the axis.

[0024] A plurality of bumps are arranged inside the cylindrical surface of the rotating sleeve, and one end of each bump is the fourth end face.

[0025] The locking member pressing sleeve is sleeved inside the rotating sleeve, and the first cylindrical pin passes through the first combined hole. When the first end face and the third end face are in a completely buckled state, the first cylindrical pin is located at the initial end of the first straight hole. Rotate the rotating sleeve. When the first cylindrical pin moves to the end of the first straight hole in the first straight hole, the first end face and the third end face are in a completely staggered state, and the seal pressing sleeve moves axially to press the seal tightly. At this time, the second end face and the fourth end face are in a completely buckled state. Continue to rotate the rotating sleeve. When the first cylindrical pin enters the first inclined hole and moves to its end, the second end face and the fourth end face are in a completely staggered state, and the locking member pressing sleeve presses the disc spring to force the pointed teeth to bite into the pipeline to lock the pipeline.

[0026] Rotate the rotating sleeve, and the seal pressing sleeve and the locking member pressing sleeve move axially under the action of the inclined end face. Then, through the guiding action of the movement of the first cylindrical pin in the first combined hole, the push-pull linkage of the locking member pressing sleeve is realized, and the installation and disassembly are convenient and fast. The pressing and sealing of the seal and the pressing and locking of the locking member have a sequence. When installing, press the seal first and then press and lock. When disassembling, loosen the locking member first and then loosen the seal.

[0027] Furthermore, the cylindrical surface of the seal pressing sleeve is provided with a plurality of second combined holes, which are a second straight hole and a second inclined hole connected to each other. The second straight hole is perpendicular to the axis.

[0028] The cylindrical surface of the locking member pressing sleeve is provided with a plurality of third combined holes, which are a third straight hole and a third inclined hole connected to each other. The third straight hole is perpendicular to the axis.

[0029] One end of the rotating sleeve is of a double-layer structure. The outer layer has the third end face, the inner layer has the fourth end face, and a plurality of second cylindrical pins are arranged on the inner cylindrical surface.

[0030] Wherein, the locking member pressing sleeve is sleeved inside the seal member pressing sleeve, the second straight hole corresponds to the third inclined hole, and the second inclined hole corresponds to the third straight hole; the second cylindrical pin passes through the second combined hole and the third combined hole; when the mating state between the third end face and the first end face and the mating state between the fourth end face and the second end face are both in complete engagement, rotate the rotating sleeve, the second cylindrical pin moves in the second inclined hole and the third straight hole, and the seal member pressing sleeve axially moves under the action of the second inclined hole until the third end face and the first end face are in a completely staggered state, pressing the seal member; continue to rotate the rotating sleeve, the second cylindrical pin moves in the third inclined hole and the second straight hole, and the locking member pressing sleeve axially moves under the action of the third inclined hole until the second end face and the fourth end face are in a completely staggered state, pressing the disc spring to force the pointed teeth to bite into the pipeline to lock the pipeline.

[0031] Rotate the rotating sleeve, the seal member pressing sleeve and the locking member pressing sleeve axially move under the action of the inclined end face, and then through the guiding action of the movement of the second cylindrical pin in the second combined hole and the third combined hole, the push-pull linkage of the seal member pressing sleeve and the locking member pressing sleeve is realized, and the installation and disassembly are convenient and fast. The pressing and sealing of the seal member and the pressing and locking of the locking member have a sequential order. When installing, first press the seal and then press and lock. When disassembling, first loosen the locking member and then loosen the seal member.

[0032] Furthermore, the pressing mechanism includes:

[0033] A seal member pressing sleeve, with the seal member provided at one end and the disc spring provided at the other end, and a plurality of long holes parallel to the axis are provided on the outer cylindrical surface; and

[0034] A locking member pressing sleeve, with the disc spring fixed at one end, and a plurality of third cylindrical pins and fourth inclined holes are provided on the outer cylindrical surface to limit the freedom degree of rotation direction of the locking member pressing sleeve inside the interface end;

[0035] The rotating mechanism includes a rotating sleeve, which is located inside the interface end, and a plurality of fourth cylindrical pins are provided on the outer cylindrical surface;

[0036] One end of the locking member pressing sleeve is sleeved in the sealing member pressing sleeve, and the third cylindrical pin extends out of the long slot; the rotating sleeve is sleeved in the locking member pressing sleeve, and the fourth cylindrical pin extends out of the fourth inclined slot; when the pressing mechanism is in a completely loose and non-compressed state, rotate the rotating sleeve, and under the action of the fourth inclined slot, the fourth cylindrical pin moves the sealing member pressing sleeve towards the sealing member, and axially moves the locking member pressing sleeve towards the disc spring, and the sealing member is pressed. When the third cylindrical pin moves from one end of the long slot to the other end, the disc spring is pressed.

[0037] Rotate the rotating sleeve. Through the guiding action of the third cylindrical pin moving in the long slot and the fourth cylindrical pin moving in the fourth inclined slot, the rotational motion is converted into a push-pull action, realizing the push-pull linkage of the sealing member pressing sleeve and the locking member pressing sleeve, which is convenient and fast for installation and disassembly.

[0038] Furthermore, the locking mechanism is an elastic component, which radially expands and contracts, and there is a fixed groove on the pipeline for installing the elastic component. The pipeline is locked by the radial contraction of the elastic component being buckled into the fixed groove of the pipeline. This locking mechanism has a firm lock and is not affected by large deviations or deformations in the outer diameter of the pipeline.

[0039] Furthermore, the interface end has a number of rotating straight holes, which are perpendicular to the axis;

[0040] The pressing mechanism includes:

[0041] A sealing member pressing sleeve, with the sealing member provided at one end, and a number of fifth inclined slots on the cylindrical surface, restricting the freedom of rotation direction of the sealing member pressing sleeve inside the interface end; and

[0042] A locking member pressing sleeve, with one end sleeved on the sealing member pressing sleeve and the elastic component provided at the other end, and a number of sixth inclined slots on the cylindrical surface, restricting the freedom of rotation direction of the locking member pressing sleeve inside the interface end;

[0043] The rotating mechanism includes a rotating sleeve, and a number of fifth cylindrical pins are provided on the outer cylindrical surface;

[0044] In which, the rotating sleeve is sleeved in the locking member pushing sleeve, and the fifth cylindrical pin passes through the fifth bevel hole, the sixth bevel hole and the rotating straight hole; when the pushing mechanism is in a completely loosened and not tightened state, the rotating sleeve is rotated, and the fifth cylindrical pin, under the action of the fifth bevel hole, moves the sealing member pushing sleeve toward the sealing member, and the sealing member is tightened; under the action of the sixth bevel hole, the fifth cylindrical pin moves the locking member pushing sleeve toward the elastic component, and the elastic component is pressed in the fixing groove.

[0045] By rotating the rotating sleeve, the rotating motion is converted into a push-pull motion through the guiding effect of the fifth cylindrical pin moving in the fifth bevel bar hole and the sixth bevel bar hole, thereby realizing the push-pull linkage of the sealing member pushing sleeve and the locking member pushing sleeve, and the installation and disassembly are convenient and quick.

[0046] Further, the interface end has a plurality of rotation straight holes, which are perpendicular to the axis;

[0047] The pushing mechanism comprises:

[0048] A sealing member pushing sleeve, one end of which is provided with the sealing member, and the other end is a fifth end surface, which limits the freedom of the sealing member pushing sleeve in the rotation direction inside the interface end; and

[0049] The locking member pushes the sleeve, the elastic member is arranged at the outer end surface, and a plurality of seventh oblique strip holes are arranged on the cylindrical surface to limit the freedom of the locking member pushing the sleeve in the rotation direction inside the interface end;

[0050] The rotating mechanism comprises a rotating sleeve, one end of which is a sixth end face, the sixth end face cooperates with the fifth end face, and a plurality of sixth cylindrical pins are arranged on the outer cylindrical surface;

[0051] Wherein, the fifth end face and the sixth end face are respectively provided with a plurality of inclined end faces; the rotating sleeve is rotated, and the inclined end faces that cooperate with each other move relative to each other, and the cooperation between the fifth end face and the sixth end face is divided into two extreme states, namely, complete engagement and complete misalignment; the rotating sleeve is sleeved in the locking member pushing sleeve, and the sixth cylindrical pin passes through the seventh inclined bar hole and the rotating straight hole; when the pushing mechanism is in a completely loosened and unpressed state, the rotating sleeve is rotated, and the sealing member pushing sleeve moves the sealing member pushing sleeve toward the sealing member under the action of the relative movement of the inclined end faces of the fifth end face and the sixth end face, and the sealing member is pressed; the sixth cylindrical pin moves the locking member pushing sleeve toward the elastic member under the action of the seventh inclined bar hole, and the elastic member is pressed in the fixing groove.

[0052] Rotate the rotating sleeve. The seal presses the sleeve to move axially under the action of the inclined end face to compress the seal. The sixth cylindrical pin moves in the seventh inclined strip hole to guide the locking member to press the sleeve to move axially to apply pressure to the locking member to lock the pipeline, realizing the push-pull linkage of the locking member pressing the sleeve, and the installation and disassembly are convenient and fast.

[0053] Furthermore, the interface end has a double row of several rotating straight holes, which are perpendicular to the axis.

[0054] The pressing mechanism includes:

[0055] A seal pressing sleeve, with the seal provided at one end and a seventh end face provided at the other end to limit the freedom of rotation direction of the seal pressing sleeve inside the interface end; and

[0056] A locking member pressing sleeve, with the elastic member provided at the outer end face, and several eighth inclined strip holes on the cylindrical surface to limit the freedom of rotation direction of the locking member pressing sleeve inside the interface end;

[0057] The rotating mechanism includes:

[0058] A first rotating sleeve, located inside the interface end, with one end being an eighth end face, the eighth end face cooperating with the seventh end face, and several seventh cylindrical pins provided on the outer cylindrical surface; and

[0059] A second rotating sleeve, provided at the other end of the first rotating sleeve, with several eighth cylindrical pins provided on the outer cylindrical surface, the second rotating sleeve being sleeved inside the locking member pressing sleeve, and the eighth cylindrical pins passing through the eighth inclined strip holes;

[0060] Wherein, the seventh cylindrical pin and the eighth cylindrical pin respectively pass through different rows of the rotating straight holes; several inclined end faces are respectively provided on the seventh end face and the eighth end face; rotate the first rotating sleeve, and the mutually cooperating inclined end faces move relative to each other, and the cooperation between the seventh end face and the eighth end face is divided into two extreme states, namely complete engagement and complete stagger;

[0061] When the pressing mechanism is in a completely loose and not compressed state, rotate the first rotating sleeve. Under the action of the relative movement of the inclined end faces of the seventh end face and the eighth end face, the seal pressing sleeve moves towards the seal direction, and the seal is compressed; rotate the second rotating sleeve, and under the action of the eighth inclined strip hole, the eighth cylindrical pin moves the locking member pressing sleeve towards the elastic member direction, and the elastic member is compressed in the fixed groove.

[0062] The seal pressing sleeve presses the seal under the action of the relative movement of the inclined end face. The eighth cylindrical pin moves in the eighth inclined strip hole to guide the locking member pressing sleeve to axially move and press the locking member to lock the pipeline, realizing the push-pull linkage of the locking member pressing sleeve, which is convenient and fast for installation and disassembly.

[0063] Furthermore, the interface end has a number of double rows, namely the first rotating inclined strip hole and the second rotating inclined strip hole respectively;

[0064] The pressing mechanism includes:

[0065] A seal pressing sleeve, with the seal arranged at one end, and a number of ninth cylindrical pins provided on the outer cylindrical surface; and

[0066] A locking member pressing sleeve, with the elastic member arranged at the outer end face, and a number of tenth cylindrical pins provided on the outer cylindrical surface;

[0067] The rotating mechanism is a rotating cylindrical barrel, sleeved outside the interface end, and its cylindrical surface has a number of long strip protrusions, which protrude from the inside to the outside parallel to the axis;

[0068] Among them, the ninth cylindrical pin and the tenth cylindrical pin respectively pass through different rows of the rotating inclined strip holes and extend into the long strip protrusions. When the pressing mechanism is in a completely loose and not pressed state, rotate the rotating cylindrical barrel. Under the action of the first rotating inclined strip hole, the ninth cylindrical pin moves the seal pressing sleeve towards the seal direction, and the seal is pressed; under the action of the second rotating inclined strip hole, the tenth cylindrical pin moves the locking member pressing sleeve towards the elastic member direction, and the elastic member is pressed in the fixed groove.

[0069] The seal pressing sleeve moves under the guidance of the ninth cylindrical pin in the first rotating inclined strip hole to press the seal, and the locking member pressing sleeve moves under the guidance of the tenth cylindrical pin in the second rotating inclined strip hole to press the elastic member to lock the pipeline, realizing the push-pull linkage of the seal pressing sleeve and the locking member pressing sleeve, which is convenient and fast for installation and disassembly.

[0070] Furthermore, it further includes a snap component. The first cylindrical pin to the tenth cylindrical pin are respectively fixed on the snap component. The snap component includes:

[0071] An elastic ring, which is cylindrical, and has a number of U-shaped holes staggered on the cylindrical surface, and the U-shaped holes can be opened or closed;

[0072] A number of snap positioning shafts, fixed on the cylindrical surface of the elastic ring along the radial direction, for installing the first cylindrical pin to the tenth cylindrical pin.

[0073] The first cylindrical pin to the tenth cylindrical pin are respectively fixed on the snap-on assembly, so that the cylindrical pins can be installed and removed conveniently and quickly.

[0074] Further, the rotating sleeve is provided with a locking groove for installing the locking mechanism;

[0075] The locking mechanism comprises a spring sheet and a locking fixed shaft, the locking fixed shaft is fixed on the spring sheet, and the spring sheet is located in the locking groove;

[0076] The interface end is provided with a locking and fixing hole, and after installation, the locking and fixing shaft is located in the locking and fixing hole.

[0077] The locking mechanism has a simple structure and is directly installed in the locking groove. The locking fixing shaft is buckled into the locking fixing hole to complete the installation. When disassembling, press the locking fixing shaft to stagger the locking fixing hole. The installation and disassembly are convenient and quick.

[0078] Further, the locking member pushing sleeve is provided with a locking groove for installing the locking mechanism;

[0079] The locking mechanism comprises a spring sheet and a locking fixed shaft, the locking fixed shaft is fixed on the spring sheet, and the spring sheet is located in the locking groove;

[0080] The interface end is provided with a locking and fixing hole, and after installation, the locking and fixing shaft is located in the locking and fixing hole.

[0081] The locking mechanism has a simple structure and is directly installed in the locking groove. The locking fixing shaft is buckled into the locking fixing hole to complete the installation. When disassembling, press the locking fixing shaft to stagger the locking fixing hole. The installation and disassembly are convenient and quick.

[0082] The rotating mechanism further includes a rotating sleeve having a rotating sleeve fixing hole, which is sleeved on the outside of the interface end, and the rotating sleeve is fixed to the rotating sleeve. After installation, the locking fixing shaft is located in the rotating sleeve fixing hole. The rotating sleeve is used to drive the rotating sleeve to rotate, which is convenient to operate; after the rotating sleeve is installed, the strength of the entire joint body can also be enhanced.

[0083] The rotating mechanism further includes a rotating sleeve, which is sleeved on the outside of the interface end, and the cylindrical surface has a plurality of cylindrical pin fixing protrusions, and the fifth cylindrical pin or the sixth cylindrical pin is located in the cylindrical pin fixing protrusions. The rotating sleeve is used to drive the rotation of the rotating sleeve, which is easy to operate; after the rotating sleeve is installed, the strength of the entire joint body can also be enhanced.

[0084] Further, the interface end has a plurality of inner protrusions, and the inner protrusions are parallel to the axis;

[0085] The outer cylindrical surface of the pushing mechanism has a plurality of axial recesses, the axial recesses are located in the inner protrusion, and the pushing mechanism moves axially on the inner protrusion.

[0086] The inner protrusion at the interface end extends into the axial concave of the outer cylindrical surface of the pushing mechanism, thereby limiting the freedom of the pushing mechanism in the rotation direction and ensuring the axial movement of the pushing mechanism on the inner protrusion, and the structure is simple.

[0087] Further, the interface end has a concave ring;

[0088] The rotating sleeve has an inner groove, the inner groove matches with the inner concave ring, and the rotating sleeve rotates on the inner concave ring.

[0089] The inner groove of the rotating sleeve is installed in the inner concave ring of the interface end, which limits the freedom of axial movement of the rotating sleeve and ensures that the rotating sleeve rotates at the interface end. The installation is convenient and the structure is simple.

[0090] Compared with the prior art, the present invention has the following technical advantages:

[0091] 1. The rotary push pipe joint can seal and lock the pipe in the joint body by rotating the rotating mechanism, without the need for tools, and is easy and quick to install;

[0092] 2. The locking mechanism uses a disc spring with sharp teeth or a radially contracted elastic component that is buckled into the fixed groove of the pipeline to lock the pipeline. These two locking mechanisms are firmly locked and are not affected by large deviations or deformations of the outer diameter of the pipeline;

[0093] 3. The pushing mechanism can realize push-pull linkage through the guidance of the inclined bar holes, which is convenient and quick to operate;

[0094] 4. The pushing mechanism presses the seal or locking member, and the rotating mechanism and the pushing mechanism have end face contact force. The end face matching force contact area is large, the force is stable, and can withstand a large fluid pressure;

[0095] 5. The rotating sleeve drives the rotating sleeve to rotate, which is easy to operate; after the rotating sleeve is installed, the strength of the entire joint body can also be enhanced;

[0096] 6. The locking mechanism has a simple structure and can be directly installed in the locking groove. The locking fixed shaft is buckled into the locking fixed hole to complete the installation. When disassembling, press the locking fixed shaft to stagger the locking fixed hole. The installation and disassembly are convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0097] Figure 1 is a main sectional exploded view of a first embodiment of the present invention;

[0098] Figure 2It is a perspective view of the first embodiment of the present invention;

[0099] Figure 3 It is the main sectional view of the first embodiment of the present invention Figure 1 ;

[0100] Figure 4 It is a perspective view of the joint body of the first embodiment of the present invention;

[0101] Figure 5 It is an exploded view of the first embodiment of the present invention;

[0102] Figure 6 It is an exploded view of the pressing mechanism and the rotating mechanism of the first embodiment of the present invention;

[0103] Figure 7 It is the perspective Figure 1 ;

[0104] Figure 8 It is the perspective Figure 2 ;

[0105] Figure 9 It is a perspective view of the seal pressing sleeve of the first embodiment of the present invention;

[0106] Figure 10 It is an exploded sectional view of the seal pressing sleeve and the seal of the first embodiment of the present invention;

[0107] Figure 11 It is a perspective view of the locking member pressing sleeve of the first embodiment of the present invention;

[0108] Figure 12 It is a perspective view of the disc spring of the first embodiment of the present invention;

[0109] Figure 13 It is an exploded sectional view of the locking member pressing sleeve and the disc spring of the first embodiment of the present invention;

[0110] Figure 14 It is a perspective view of the rotating sleeve of the first embodiment of the present invention;

[0111] Figure 15 It is a perspective view of the snap component of the first embodiment of the present invention;

[0112] Figure 16 It is the main sectional view of the first embodiment of the present invention Figure 2 ;

[0113] Figure 17 It is Figure 16 the A-A sectional view of;

[0114] Figure 18 It is Figure 16The sectional view taken along line B-B;

[0115] Figure 19a It is a state diagram of the seal and the locking member of the first embodiment of the present invention being completely loosened;

[0116] Figure 19b Is Figure 19a The sectional view;

[0117] Figure 20a It is a state diagram of the seal of the first embodiment of the present invention being completely locked;

[0118] Figure 20b Is Figure 20a The sectional view;

[0119] Figure 21a It is a state diagram of the locking member of the first embodiment of the present invention being completely locked;

[0120] Figure 21b Is Figure 21a The sectional view;

[0121] Figure 22 It is the main sectional exploded view of the second embodiment of the present invention;

[0122] Figure 23 It is the perspective view of the second embodiment of the present invention;

[0123] Figure 24 Is the main section of the second embodiment of the present invention Figure 1 ;

[0124] Figure 25 It is the perspective view of the joint body of the second embodiment of the present invention;

[0125] Figure 26 It is the exploded view of the internal parts of the joint body of the second embodiment of the present invention;

[0126] Figure 27 Is Figure 26 The main sectional view;

[0127] Figure 28 It is the perspective view of the rotating sleeve of the second embodiment of the present invention;

[0128] Figure 29 It is the perspective view of the seal pressing sleeve of the second embodiment of the present invention;

[0129] Figure 30 It is the perspective view of the seal pressing sleeve of the second embodiment of the present invention;

[0130] Figure 31 It is the perspective view of the disc spring of the second embodiment of the present invention;

[0131] Figure 32is the perspective view of the rotating sleeve of the second embodiment of the present invention;

[0132] Figure 33 is the main sectional view of the second embodiment of the present invention Figure 2 ;

[0133] Figure 34 is Figure 33 the C-C sectional view of;

[0134] Figure 35 is Figure 33 the D-D sectional view of;

[0135] Figure 36a is the state diagram of the seal and the locking member of the second embodiment of the present invention being fully locked;

[0136] Figure 36b is Figure 36a the sectional view of;

[0137] Figure 37a is the state diagram of the locking member of the second embodiment of the present invention being fully loosened;

[0138] Figure 37b is Figure 37a the sectional view of;

[0139] Figure 38a is the state diagram of the seal of the second embodiment of the present invention being fully loosened;

[0140] Figure 38b is Figure 38a the sectional view of;

[0141] Figure 39 is the exploded view of the main sectional view of the third embodiment of the present invention;

[0142] Figure 40 is the perspective view of the third embodiment of the present invention;

[0143] Figure 41 is the main sectional view of the third embodiment of the present invention Figure 1 ;

[0144] Figure 42 is the perspective view of the joint body of the third embodiment of the present invention;

[0145] Figure 43 is the exploded view of the internal parts of the joint body of the third embodiment of the present invention;

[0146] Figure 44 is the perspective view of the rotating sleeve of the third embodiment of the present invention;

[0147] Figure 45 is the perspective view of the seal pressing sleeve of the third embodiment of the present invention;

[0148] Figure 46 is a perspective view of the locking member pressing the sleeve in the third embodiment of the present invention;

[0149] Figure 47a is a state diagram of the seal and the locking member being fully locked in the third embodiment of the present invention;

[0150] Figure 47b is Figure 47a a cross-sectional view of;

[0151] Figure 48a is a state diagram of the locking member being fully loosened in the third embodiment of the present invention;

[0152] Figure 48b is Figure 48a a cross-sectional view of;

[0153] Figure 49a is a state diagram of the seal being fully loosened in the third embodiment of the present invention;

[0154] Figure 49b is Figure 49a a cross-sectional view of;

[0155] Figure 50 is the main cross-section of the third embodiment of the present invention Figure 2 ;

[0156] Figure 51 is Figure 50 an E-E cross-sectional view of;

[0157] Figure 52 is the main cross-sectional exploded view of the fourth embodiment of the present invention;

[0158] Figure 53 is a perspective view of the fourth embodiment of the present invention;

[0159] Figure 54 is the main cross-sectional view of the fourth embodiment of the present invention;

[0160] Figure 55 is Figure 54 an F-F cross-sectional view of;

[0161] Figure 56 is a perspective view of the rotating sleeve of the fourth embodiment of the present invention;

[0162] Figure 57 is the exploded view of the internal and external parts of the joint body of the fourth embodiment of the present invention;

[0163] Figure 58 is a perspective view of the joint body of the fourth embodiment of the present invention;

[0164] Figure 59It is an exploded view of the pushing mechanism, seal and locking part in the fourth embodiment of the present invention;

[0165] Figure 60 It is a perspective view of the seal pushing sleeve in the fourth embodiment of the present invention;

[0166] Figure 61 It is a perspective view of the locking part pushing sleeve in the fourth embodiment of the present invention;

[0167] Figure 62 It is the main sectional exploded view of the fifth embodiment of the present invention;

[0168] Figure 63 It is a perspective view of the fifth embodiment of the present invention;

[0169] Figure 64 It is the main sectional view of the fifth embodiment of the present invention;

[0170] Figure 65 It is a perspective view of the joint body in the fifth embodiment of the present invention;

[0171] Figure 66 It is a perspective view of the rotating sleeve in the fifth embodiment of the present invention;

[0172] Figure 67 It is an exploded view of the internal parts of the joint body in the fifth embodiment of the present invention;

[0173] Figure 68 It is a perspective view of the seal pushing sleeve in the fifth embodiment of the present invention;

[0174] Figure 69 It is a perspective view of the rotating sleeve in the fifth embodiment of the present invention;

[0175] Figure 70 It is the main sectional exploded view of the sixth embodiment of the present invention;

[0176] Figure 71 It is a perspective view of the sixth embodiment of the present invention;

[0177] Figure 72 It is the main sectional view of the sixth embodiment of the present invention;

[0178] Figure 73 It is Figure 72 the G-G sectional view of;

[0179] Figure 74 It is a perspective view of the joint body in the sixth embodiment of the present invention;

[0180] Figure 75 It is an exploded view of the internal and external parts of the joint body in the sixth embodiment of the present invention;

[0181] Figure 76It is an exploded view of the pushing mechanism, rotating mechanism, seal and locking part of the sixth embodiment of the present invention;

[0182] Figure 77 It is Figure 76 The main sectional view;

[0183] Figure 78 It is a three-dimensional view of the seal pushing sleeve of the sixth embodiment of the present invention;

[0184] Figure 79 It is a three-dimensional view of the rotating sleeve of the sixth embodiment of the present invention;

[0185] Figure 80 It is a three-dimensional view of the locking part pushing sleeve of the sixth embodiment of the present invention;

[0186] Figure 81 It is a three-dimensional view of the rotating sleeve of the sixth embodiment of the present invention;

[0187] Figure 82 It is the main sectional exploded view of the seventh embodiment of the present invention;

[0188] Figure 83 It is a three-dimensional view of the seventh embodiment of the present invention;

[0189] Figure 84 It is the main sectional view of the seventh embodiment of the present invention;

[0190] Figure 85 It is a three-dimensional view of the joint body of the seventh embodiment of the present invention;

[0191] Figure 86 It is an exploded view of the internal parts of the joint body of the seventh embodiment of the present invention;

[0192] Figure 87 It is an exploded view of the second rotating sleeve and related parts of the seventh embodiment of the present invention;

[0193] Figure 88 It is a three-dimensional view of the seal pushing sleeve of the seventh embodiment of the present invention;

[0194] Figure 89 It is a three-dimensional view of the first rotating sleeve of the seventh embodiment of the present invention;

[0195] Figure 90 It is a three-dimensional view of the locking part pushing sleeve of the seventh embodiment of the present invention;

[0196] Figure 91 It is a three-dimensional view of the rotating sleeve of the seventh embodiment of the present invention;

[0197] Figure 92 It is the main sectional exploded view of the eighth embodiment of the present invention;

[0198] Figure 93 is a perspective view of the eighth embodiment of the present invention;

[0199] Figure 94 is a main cross-sectional view of the eighth embodiment of the present invention;

[0200] Figure 95 is a perspective view of the joint body of the eighth embodiment of the present invention;

[0201] Figure 96 is an exploded view of the internal parts of the joint body of the eighth embodiment of the present invention;

[0202] Figure 97 is a perspective view of the rotating cylinder of the eighth embodiment of the present invention. Specific embodiments

[0203] The present invention will be further described in detail below with reference to the embodiments in the drawings.

[0204] As Figures 1 to 2 shown in FIG. 1, the first embodiment of the rotating push-pressing pipe joint of the present invention.

[0205] As Figure 1 shown in FIGS. 1 / 5, the rotating push-pressing pipe joint of this embodiment includes a joint body 10, a sealing member 20, a locking mechanism 30, a push-pressing mechanism 40, a rotating mechanism 50, and a locking mechanism 60.

[0206] As Figure 1 shown in FIGS. 1 / 2 / 4, the joint body 10 is a straight-through joint, having two interface ends 11 for connecting the pipe A. The middle part of the joint body 10 has a circumferential inward contraction position 12, which is used for limiting the insertion depth of the pipe A. Each interface end 11 respectively includes a sealing member limiting step 13, an inner protrusion 14, an inner concave ring 15, a locking fixing hole 17, and an opening groove 16. The sealing member limiting step 13 is located inside the inner side of the interface end 11; the inner protrusion 14 is located on the outer cylindrical surface of the interface end 11 and is divided into three evenly distributed ones; the inner concave ring 15 is located on the outer cylindrical surface of the interface end 11 on the outer side; the opening groove 16 is located at the end of the interface end 11 and is divided into three evenly distributed ones, and the opening direction is set along the axial direction. The setting of the opening groove 16 makes the end of the interface end 11 have the elasticity of expansion and contraction, which is convenient for the installation of internal and external parts of the interface end 11; the locking fixing hole 17 is used for installing the locking mechanism 60.

[0207] As Figure 1 shown in FIG. 3, a sealing member gasket 21 is provided on the sealing member limiting step 13 inside the interface end 11. The end face of the sealing member 20 is pressed on the sealing member gasket 21, and the sealing member 20 seals between the inner wall of the interface end 11 and the outer wall of the pipe A.

[0208] As Figure 1As shown in / 3 / 5 / 12, the locking mechanism 30 is a disc spring 31, which has a plurality of sharp teeth 311, and the sharp teeth 311 bite into the pipe A. The disc spring 31 with sharp teeth 311 locks the pipe A, and is not affected by the large deviation or deformation of the outer diameter of the pipe A, and the locking is firm.

[0209] like Figure 5 As shown in FIG. 6 , the pushing mechanism 40 includes a sealing member pushing sleeve 41 and a locking member pushing sleeve 42 .

[0210] like Figure 9 As shown in FIG. 10, a seal 20 is arranged at one end of the seal pushing sleeve 41, and the other end is a double-layer structure, the outer layer is a first end face 411, and the inner layer is provided with three evenly distributed limiting protrusions 412. A disc spring 31 is arranged at this end, and the cylindrical surface of the seal pushing sleeve 41 has three evenly distributed axial concave portions 43, as shown in FIG. Figure 16 As shown in FIG. 18 , the axial recess 43 is located in the inner protrusion 14 of the interface end 11 to limit the freedom of the sealing member pushing sleeve 41 in the rotation direction.

[0211] like Figure 6 As shown in / 11 / 13, the locking member pushes the sleeve 42 to fix the disc spring 31 at one end, the cylindrical surface has a limited concave 423, and the other end is a second end surface 421, as shown in Figure 16 As shown in FIG. 17 , the limiting protrusion 412 of the sealing member pushing sleeve 41 extends into the limiting recess 423 to limit the freedom of rotation of the locking member pushing sleeve 42 .

[0212] like Figure 3 As shown in / 6 / 7, the rotating mechanism 50 includes a rotating sleeve 51, which is located inside the interface end 11 and has a third end face 511 and a fourth end face 512. The third end face 511 cooperates with the first end face 411, and the fourth end face 512 cooperates with the second end face 421; the rotating sleeve 51 has an inner groove 51C, and the inner groove 51C cooperates with the inner concave ring 15 of the interface end 11. The rotating sleeve 51 rotates on the inner concave ring 15.

[0213] The first end face 411, the second end face 421, the third end face 511 and the fourth end face 512 are respectively provided with a plurality of inclined end faces, and the two ends of the inclined end faces are flat end faces; the rotating sleeve 51 is rotated, and the mutually matching inclined end faces move relatively, and the third end face 511 and the first end face 411 are matched into two extreme states, namely, fully engaged and fully misaligned, and the fourth end face 512 and the second end face 421 are matched into two extreme states, namely, fully engaged and fully misaligned; when moving from the fully engaged state to the fully misaligned state, the sealing element 20 is first pressed to form a seal, and the disc spring 31 is then pressed to force the sharp teeth 311 to eat into the pipe A and lock the pipe A.

[0214] By means of the mating of the rotating sleeve 51 with the inclined end faces of the seal pressing sleeve 41 and the locking member pressing sleeve 42 respectively, the rotational motion of the rotating sleeve 51 is converted into the axial pressing actions of the seal pressing sleeve 41 and the locking member pressing sleeve 42, pressing the seal 20 to form a seal and pressing the disc spring 31 to lock the pipeline A. The operation is simple and the installation is convenient and fast. The end face mating has better force bearing and can withstand a large fluid pressure.

[0215] As Figure 3 shown in / 5, three equally spaced first cylindrical pins 422 are provided on the outer cylindrical surface of the locking member pressing sleeve 42; as Figure 6 shown in / 7, there are three groups of equally spaced first combined holes 514 on the cylindrical surface of the rotating sleeve 51. The first combined holes 514 are composed of a first straight hole 5141 and a first inclined hole 5142 which are connected to each other. The first straight hole 5141 is perpendicular to the axis; as Figure 7 shown, there are several convex blocks 513 inside the cylindrical surface of the rotating sleeve 51, and one end of the convex block 513 is the fourth end face 512.

[0216] As Figure 6 shown in / 16, the locking member pressing sleeve 42 is sleeved inside the rotating sleeve 51, and the first cylindrical pin 422 passes through the first combined hole 514; as Figure 19a shown in / 19b, the first end face 411 and the third end face 511 are in a completely buckled state, and the first cylindrical pin 422 is located at the initial end of the first straight hole 5141. When the rotating sleeve 51 is rotated, when the first cylindrical pin 422 moves to the end of the first straight hole 5141 in the first straight hole 5141, as Figure 20a shown in / 20b, the first end face 411 and the third end face 511 are in a completely staggered state, and the seal pressing sleeve 41 moves axially to press the seal 20; at this time, the second end face 421 and the fourth end face 512 are in a completely buckled state. Continuing to rotate the rotating sleeve 51, when the first cylindrical pin 422 enters the first inclined hole 5142 and moves to its end, as Figure 21a shown in / 21b, the second end face 421 and the fourth end face 512 are in a completely staggered state, and the locking member pressing sleeve 42 presses the disc spring 31 to force the pointed teeth 311 to bite into the pipeline A to lock the pipeline A.

[0217] Rotating the rotating sleeve 51, the seal pressing sleeve 41 and the locking member pressing sleeve 42 move axially under the action of the inclined end faces, and then through the guiding action of the movement of the first cylindrical pin 422 in the first combined hole 514, the push-pull linkage of the locking member pressing sleeve 42 is realized, and the installation and disassembly are convenient and fast. The pressing and sealing of the seal 20 and the pressing and locking of the locking member have a sequential order. When installing, press the seal first and then press and lock. When disassembling, loosen the locking member first and then loosen the seal 20.

[0218] As Figure 6As shown, the rotary push pipe joint also includes a snap assembly 70, and the first cylindrical pin 422 is fixed on the snap assembly 70. Figure 15 As shown, the snap assembly 70 includes an elastic ring 71 and three evenly distributed snap positioning shafts 73. The elastic ring 71 is cylindrical, and has a plurality of U-shaped holes 72 arranged alternately on the cylindrical surface. The U-shaped holes 72 can be opened or shrunk, and the opening direction is along the axial direction; the snap positioning shaft 73 is fixed on the cylindrical surface of the elastic ring 71 and arranged in the radial direction, and the first cylindrical pin 422 is installed. The first cylindrical pin 422 is fixed on the snap assembly 70, so that the cylindrical pin can be installed and removed conveniently and quickly.

[0219] like Figure 5 As shown, the rotating sleeve 51 is provided with a locking groove 63, and the locking mechanism 60 is installed; the locking mechanism 60 includes a spring piece 62 and a locking fixing shaft 61, the locking fixing shaft 61 is fixed on the spring piece 62, and the spring piece 62 is located in the locking groove 63; the interface end 11 is provided with a locking fixing hole 17, and after installation, the locking fixing shaft 61 is located in the locking fixing hole 17. The locking mechanism 60 has a simple structure and is directly installed in the locking groove 63. The locking fixing shaft 61 is buckled into the locking fixing hole 17 to complete the installation. When disassembling, the locking fixing shaft 61 can be pressed to stagger the locking fixing hole 17, and the installation and disassembly are convenient and quick.

[0220] like Figure 1 As shown in FIG. 5 , the rotating mechanism 50 also includes a rotating sleeve 52, which has a rotating sleeve fixing hole 521, a rotating sleeve groove 522 and an end ring surface 523. The end ring surface 523 has three evenly distributed annular holes 524. The end surface of the rotating sleeve 51 is provided with three evenly distributed annular protrusions 515. The rotating sleeve 52 is sleeved on the outside of the interface end 11. The rotating sleeve groove 522 is located in the inner concave ring 15 of the interface end 11. The annular protrusion 515 passes through the annular hole 524. The rotating sleeve 52 is fixed to the rotating sleeve 51. After installation, the locking fixed shaft 61 is located in the rotating sleeve fixing hole 521, and the rotating sleeve groove 522 is located in the inner concave ring 15 of the interface end 11. The rotating sleeve 52 is used to drive the rotation of the rotating sleeve 51, which is convenient to operate; after the rotating sleeve 52 is installed, the strength of the entire joint body 10 can also be enhanced.

[0221] like Figures 22 to 3 FIG8 shows a second embodiment of the rotary push pipe joint of the present invention.

[0222] like Figure 22 As shown in FIG. 23 , the rotary pushing pipe joint of this embodiment includes a joint body 10 , a sealing member 20 , a locking mechanism 30 , a pushing mechanism 40 , a rotating mechanism 50 and a locking mechanism 60 .

[0223] like Figure 22As shown in Figures 23 and 25, the joint body 10 is a straight-through joint with two interface ends 11 for connecting the pipeline A. There is a circumferential constriction 12 in the middle of the joint body 10, which is used to limit the insertion depth of the pipeline A. Each interface end 11 includes a seal limiting step 13, an inner protrusion 14, an inner concave ring 15, a locking fixing hole 17 and an opening groove 16. The seal limiting step 13 is located inside the inner side of the interface end 11; the inner protrusion 14 is located on the outer cylindrical surface of the interface end 11 and is divided into three equally distributed ones; the inner concave ring 15 is located on the outer side of the outer cylindrical surface of the interface end 11; the opening groove 16 is located at the end of the interface end 11 and is divided into three equally distributed ones, and the opening direction is set axially. The setting of the opening groove 16 makes the end of the interface end 11 have the elasticity of expansion and contraction, which is convenient for the installation of internal and external parts of the interface end 11; the locking fixing hole 17 is used to install the locking mechanism 60.

[0224] As Figure 22 As shown in Figure 24, a seal gasket 21 is provided on the seal limiting step 13 inside the interface end 11. The end face of the seal 20 is pressed on the seal gasket 21, and the seal 20 seals between the inner wall of the interface end 11 and the outer wall of the pipeline A.

[0225] As Figure 24 As shown in Figures 26, 27 and 31, the locking mechanism 30 is a disc spring 31, which has a number of pointed teeth 311, and the pointed teeth 311 bite into the pipeline A. The disc spring 31 with pointed teeth 311 locks the pipeline A, and is not affected by large deviations or deformations in the outer diameter of the pipeline A, and the locking is firm.

[0226] As Figure 26 As shown in Figure 27, the pressing mechanism 40 includes a seal pressing sleeve 41 and a locking member pressing sleeve 42.

[0227] As Figure 26 As shown in Figures 27 and 29, one end of the seal pressing sleeve 41 is provided with a seal 20, and the other end is a first end face 411, and the disc spring 31 is provided at this end. The cylindrical surface of the seal pressing sleeve 41 has three equally distributed axial inner concavities 43 and three equally distributed second combined holes 413. The second combined holes 413 are second straight holes 4131 and second inclined holes 4132 connected to each other, and the second straight holes 4131 are perpendicular to the axis. As Figure 33 As shown in Figure 35, the axial inner concavity 43 is located inside the inner protrusion 14 of the interface end 11 to limit the freedom of rotation direction of the seal pressing sleeve 41.

[0228] As Figure 26As shown in / 27 / 30, one end of the locking member pushing sleeve 42 fixes the disc spring 31, and the other end is a double-layer structure, the outer layer structure has a second end face 421, the outer layer structure has three evenly distributed axial grooves 42B on the cylindrical surface, and the inner layer structure has three evenly distributed second combination holes 413 on the cylindrical surface. The second combination holes 413 are second straight holes 4131 and second oblique holes 4132 connected to each other, and the second straight holes 4131 are perpendicular to the axis. Figure 26 As shown in / 33 / 34, the axial recess 43 of the sealing member pushing sleeve 41 extends into the axial groove 42B to limit the freedom of rotation direction of the locking member pushing sleeve 42.

[0229] like Figure 24 As shown in / 26 / 28, the rotating mechanism 50 includes a rotating sleeve 51, which is located inside the interface end 11. One end of the rotating sleeve 51 is a double-layer structure. The outer layer has a third end face 511, and the inner layer has a fourth end face 512. The third end face 511 cooperates with the first end face 411, and the fourth end face 512 cooperates with the second end face 421; the rotating sleeve 51 has an inner groove 51C, and the inner groove 51C cooperates with the inner concave ring 15 of the interface end 11. The rotating sleeve 51 rotates on the inner concave ring 15.

[0230] The first end face 411, the second end face 421, the third end face 511 and the fourth end face 512 are respectively provided with a plurality of inclined end faces, and the two ends of the inclined end faces are flat end faces; the rotating sleeve 51 is rotated, and the mutually matching inclined end faces move relatively, and the third end face 511 and the first end face 411 are matched into two extreme states, namely, fully engaged and fully misaligned, and the fourth end face 512 and the second end face 421 are matched into two extreme states, namely, fully engaged and fully misaligned; when moving from the fully engaged state to the fully misaligned state, the sealing element 20 is first pressed to form a seal, and the disc spring 31 is then pressed to force the sharp teeth 311 to eat into the pipe A and lock the pipe A.

[0231] The rotating sleeve 51 is matched with the oblique end faces of the sealing member pushing sleeve 41 and the locking member pushing sleeve 42 respectively, so that the rotating motion of the rotating sleeve 51 is converted into the axial pushing motion of the sealing member pushing sleeve 41 and the locking member pushing sleeve 42, thereby pressing the sealing member 20 to form a seal and compressing the disc spring 31 to lock the pipeline A. The motion is simple and the installation is convenient and quick. The end faces are better matched with force and can withstand greater fluid pressure.

[0232] like Figure 26 As shown in / 33 / 34, the inner cylindrical surface of the rotating sleeve 51 is provided with three evenly distributed second cylindrical pins 516; Figure 24As shown in / 26, the locking member pressing sleeve 42 is sleeved inside the seal member pressing sleeve 41. The second straight hole 4131 corresponds to the third inclined hole 4242, and the second inclined hole 4132 corresponds to the third straight hole 4241. The second cylindrical pin 516 passes through the second combined hole 413 and the third combined hole 424. As Figure 38a As shown in / 38b, when the mating state between the third end face 511 and the first end face 411 and the mating state between the fourth end face 512 and the second end face 421 are both in complete engagement, the seal member 20 and the locking member are in the released state respectively. Rotate the rotating sleeve 51, and the second cylindrical pin 516 moves in the second inclined hole 4132 and the third straight hole 4241. Under the action of the second inclined hole 4132, the seal member pressing sleeve 41 moves axially until the third end face 511 and the first end face 411 are in a completely staggered state, pressing the seal member 20. As Figure 37a As shown in / 37b; continue to rotate the rotating sleeve 51, the second cylindrical pin 516 moves in the third inclined hole 4242 and the second straight hole 4131. Under the action of the third inclined hole 4242, the locking member pressing sleeve 42 moves axially until the second end face 421 and the fourth end face 512 are in a completely staggered state, pressing the disc spring 31 to force the pointed teeth 311 to bite into the pipeline A to lock the pipeline A. As Figure 36a As shown in / 36b.

[0233] Rotate the rotating sleeve 51, and the seal member pressing sleeve 41 and the locking member pressing sleeve 42 move axially under the action of the inclined end faces. Then, through the guiding action of the movement of the second cylindrical pin 516 in the second combined hole 413 and the third combined hole 424, the push-pull linkage of the seal member pressing sleeve 41 and the locking member pressing sleeve 42 is realized, which is convenient and fast for installation and disassembly. The pressing of the seal member 20 and the locking of the locking member have a sequential order. When installing, the seal is pressed first and then locked. When disassembling, the locking member is loosened first and then the seal member 20 is loosened.

[0234] As Figure 26 shown, the rotary push-pull pipeline joint further includes a snap component 70, and the second cylindrical pin 516 is fixed on the snap component 70. As Figure 15 shown, the snap component 70 includes an elastic ring 71 and three evenly distributed snap positioning shafts 73. The elastic ring 71 is in a cylindrical shape, and there are several U-shaped holes 72 staggered on the cylindrical surface. The opening direction of the U-shaped hole 72 is along the axial direction; the snap positioning shafts 73 are fixed on the cylindrical surface of the elastic ring 71 along the radial direction to install the second cylindrical pin 516. The second cylindrical pin 516 is fixed on the snap component 70, making the installation and disassembly of the above-mentioned cylindrical pin convenient and fast.

[0235] As Figure 26As shown, the rotating sleeve 51 is provided with a locking groove 63, and the locking mechanism 60 is installed; the locking mechanism 60 includes a spring piece 62 and a locking fixing shaft 61, the locking fixing shaft 61 is fixed on the spring piece 62, and the spring piece 62 is located in the locking groove 63; the interface end 11 is provided with a locking fixing hole 17, and after installation, the locking fixing shaft 61 is located in the locking fixing hole 17. The locking mechanism 60 has a simple structure and is directly installed in the locking groove 63. The locking fixing shaft 61 is buckled into the locking fixing hole 17 to complete the installation. When disassembling, the locking fixing shaft 61 can be pressed to stagger the locking fixing hole 17, and the installation and disassembly are convenient and quick.

[0236] like Figure 22 As shown in FIG. 32, the rotating mechanism 50 further includes a rotating sleeve 52 having a rotating sleeve fixing hole 521, a rotating sleeve groove 522 and an end ring surface 523. The end ring surface 523 has three evenly distributed annular holes 524, as shown in FIG. Figure 28 As shown, the end surface of the rotating sleeve 51 is provided with three evenly distributed annular protrusions 515, the rotating sleeve 52 is sleeved on the outside of the interface end 11, the rotating sleeve groove 522 is located in the concave ring 15 of the interface end 11, the annular protrusion 515 passes through the annular hole 524, the rotating sleeve 52 is fixed to the rotating sleeve 51, after the installation is completed, the locking fixed shaft 61 is located in the rotating sleeve fixing hole 521, and the rotating sleeve groove 522 is located in the concave ring 15 of the interface end 11. The rotating sleeve 52 is used to drive the rotating sleeve 51 to rotate, which is convenient to operate; after the rotating sleeve 52 is installed, the strength of the entire joint body 10 can also be enhanced.

[0237] like Figures 39 to 51 FIG. 2 shows a third embodiment of a rotary push pipe joint according to the present invention.

[0238] like Figure 39 As shown in FIG. 40 , the rotary pushing pipe joint of this embodiment includes a joint body 10 , a sealing member 20 , a locking mechanism 30 , a pushing mechanism 40 , a rotating mechanism 50 and a locking mechanism 60 .

[0239] like Figure 39 As shown in FIG. 42, the joint body 10 is a straight joint, having two interface ends 11 connected to the pipe A, and a circle of indentation 12 is provided in the middle of the joint body 10, and the indentation 12 is used to limit the insertion depth of the pipe A. Each interface end 11 includes a sealing member limiting step 13, an inner protrusion 14, a locking and fixing hole 17 and an inner concave ring 15, respectively. The sealing member limiting step 13 is located on the inner side of the interface end 11; the inner protrusion 14 is located on the outer cylindrical surface of the interface end 11, and is divided into three evenly distributed ones; the inner concave ring 15 is located on the outer side of the outer cylindrical surface of the interface end 11; the locking and fixing hole 17 is used to install the locking mechanism 60.

[0240] like Figure 39As shown in / 41, a seal gasket 21 is provided on the seal limiting step 13 inside the interface end 11. The end face of the seal 20 presses on the seal gasket 21, and the seal 20 seals between the inner wall of the interface end 11 and the outer wall of the pipe A.

[0241] As Figure 39 As shown in / 43, the locking mechanism 30 is a disc spring 31 which has a number of pointed teeth 311 that bite into the pipe A. The disc spring 31 with the pointed teeth 311 locks the pipe A firmly without being affected by large deviations or deformations in the outer diameter of the pipe A.

[0242] As Figure 39 As shown in / 43, the pressing mechanism 40 includes a seal pressing sleeve 41 and a locking member pressing sleeve 42.

[0243] As Figure 43 As shown in / 46, one end of the seal pressing sleeve 41 is provided with the seal 20 and the other end is provided with the disc spring 31. Three equally spaced long holes 414 parallel to the axis are provided on the outer cylindrical surface of the seal pressing sleeve 41.

[0244] As Figure 43 As shown in / 45, one end of the locking member pressing sleeve 42 fixes the disc spring 31, and three equally spaced third cylindrical pins 425, fourth inclined slots 426 and axial grooves 42B are respectively provided on the outer cylindrical surface. As Figure 50 As shown in / 51, the axial recess 43 of the locking member pressing sleeve 42 extends into the axial groove 42B to limit the freedom of rotation direction of the locking member pressing sleeve 42.

[0245] As Figure 43 As shown in / 44, the rotating mechanism 50 includes a rotating sleeve 51 which is located inside the interface end 11. Three equally spaced fourth cylindrical pins 517 are provided on the outer cylindrical surface of the rotating sleeve 51. As Figure 41 As shown in / 43, one end of the locking member pressing sleeve 42 is sleeved in the seal pressing sleeve 41, and the third cylindrical pin 425 extends out of the long hole 414; the rotating sleeve 51 is sleeved in the locking member pressing sleeve 42, and the fourth cylindrical pin 517 extends out of the fourth inclined slot 426. As Figure 49a As shown in / 49b, when the pressing mechanism 40 is in a completely loose and not pressed state, the seal 20 and the locking member are respectively loosened. Rotating the rotating sleeve 51, under the action of the fourth inclined slot 426, the fourth cylindrical pin 517 moves the seal pressing sleeve 41 towards the seal 20 and axially moves the locking member pressing sleeve 42 towards the disc spring 31, and the seal 20 is pressed. As Figure 48a As shown in / 48b, when the third cylindrical pin 425 moves from one end of the long hole 414 to the other end, the disc spring 31 is pressed. As Figure 47a As shown in / 47b.

[0246] By rotating the rotating sleeve 51, the rotating motion is converted into a push-pull motion through the guiding effect of the third cylindrical pin 425 in the long hole 414 and the fourth cylindrical pin 517 in the fourth oblique hole 426, thereby realizing the push-pull linkage of the sealing member pushing sleeve 41 and the locking member pushing sleeve 42, and the installation and disassembly are convenient and quick.

[0247] like Figure 43 As shown, the rotary push pipe joint also includes a snap assembly 70, and the third cylindrical pin 425 and the fourth cylindrical pin 517 are respectively fixed on the snap assembly 70. Figure 15 As shown, the snap assembly 70 includes an elastic ring 71 and three evenly distributed snap positioning shafts 73. The elastic ring 71 is cylindrical, and has a plurality of U-shaped holes 72 arranged alternately on the cylindrical surface, and the opening direction of the U-shaped holes 72 is along the axial direction; the snap positioning shaft 73 is fixed on the cylindrical surface of the elastic ring 71 and arranged in the radial direction, and the third cylindrical pin 425 and the fourth cylindrical pin 517 are respectively installed. The third cylindrical pin 425 and the fourth cylindrical pin 517 are respectively fixed on the snap assembly 70, so that the above cylindrical pins can be installed and removed conveniently and quickly.

[0248] like Figure 43 As shown, the rotating sleeve 51 is provided with a locking groove 63, and the locking mechanism 60 is installed; the locking mechanism 60 includes a spring piece 62 and a locking fixing shaft 61, the locking fixing shaft 61 is fixed on the spring piece 62, and the spring piece 62 is located in the locking groove 63; the interface end 11 is provided with a locking fixing hole 17, and after installation, the locking fixing shaft 61 is located in the locking fixing hole 17. The locking mechanism 60 has a simple structure and is directly installed in the locking groove 63. The locking fixing shaft 61 is buckled into the locking fixing hole 17 to complete the installation. When disassembling, the locking fixing shaft 61 can be pressed to stagger the locking fixing hole 17, and the installation and disassembly are convenient and quick.

[0249] like Figure 32 As shown in FIG. 39, the rotating mechanism 50 further includes a rotating sleeve 52 having a rotating sleeve fixing hole 521, a rotating sleeve groove 522 and an end ring surface 523. The end ring surface 523 has three evenly distributed annular holes 524, as shown in FIG. Figure 44 As shown, the end surface of the rotating sleeve 51 is provided with three evenly distributed annular protrusions 515, the rotating sleeve 52 is sleeved on the outside of the interface end 11, the rotating sleeve groove 522 is located in the concave ring 15 of the interface end 11, the annular protrusion 515 passes through the annular hole 524, the rotating sleeve 52 is fixed to the rotating sleeve 51, after the installation is completed, the locking fixed shaft 61 is located in the rotating sleeve fixing hole 521, and the rotating sleeve groove 522 is located in the concave ring 15 of the interface end 11. The rotating sleeve 52 is used to drive the rotating sleeve 51 to rotate, which is convenient to operate; after the rotating sleeve 52 is installed, the strength of the entire joint body 10 can also be enhanced.

[0250] like Figures 52 to 61As shown, the fourth embodiment of the rotary push - press pipe joint of the present invention.

[0251] As Figure 52 shown in / 53, the rotary push - press pipe joint of this embodiment includes a joint body 10, a seal 20, a locking mechanism 30, a push - press mechanism 40, a rotary mechanism 50, and a locking mechanism 60.

[0252] As Figure 52 shown in / 58, the joint body 10 is a straight - through joint with two interface ends 11 for connecting the pipe A. There is a circumferential recess 12 in the middle of the joint body 10, which is used for limiting the insertion depth of the pipe A. Each interface end 11 includes a seal limiting step 13, an inner protrusion 14, a locking fixing hole 17, and a rotary straight hole 18. The seal limiting step 13 is located inside the inner side of the interface end 11; the inner protrusion 14 is located on the outer cylindrical surface of the interface end 11 and is divided into three evenly distributed ones; the rotary straight holes 18 are three evenly distributed ones and are perpendicular to the axis respectively; the locking fixing hole 17 is used for installing the locking mechanism 60.

[0253] As Figure 52 shown in / 54, a seal gasket 21 is provided on the seal limiting step 13 inside the interface end 11. The end face of the seal 20 presses on the seal gasket 21, and the seal 20 seals between the inner wall of the interface end 11 and the outer wall of the pipe A.

[0254] As Figure 52 shown in / 54 / 57, the locking mechanism 30 is an elastic member 32. The elastic member 32 expands and contracts radially, and a fixed groove A1 is provided on the pipe A for installing the elastic member 32. The pipe A is locked by the radial contraction of the elastic member 32 being buckled into the fixed groove A1 of the pipe A. This locking mechanism 30 has a firm lock and is not affected by a large deviation in the outer diameter of the pipe A or deformation. As Figure 57 shown, this elastic member 32 is a spring coil.

[0255] As Figure 57 shown in / 59, the push - press mechanism 40 includes a seal push - press sleeve 41 and a locking member push - press sleeve 42.

[0256] As Figure 57 shown in / 59 / 60, one end of the seal push - press sleeve 41 is provided with the seal 20, and there are three evenly distributed fifth inclined strip holes 415 on the cylindrical surface. Three evenly distributed seal sleeve inner recesses 419 parallel to the axis are provided on the outer cylindrical surface of the seal push - press sleeve 41.

[0257] As Figure 57 shown in / 59 / 61, one end of the locking member push - press sleeve 42 is sleeved on the seal push - press sleeve 41, the other end is provided with the elastic member 32, and there are three evenly distributed sixth inclined strip holes 427 and three evenly distributed axial inner recesses 43 on the cylindrical surface. AsFigure 57 As shown, the axial concave portion 43 extends into the seal sleeve concave portion 419 of the seal pressing sleeve 41 to limit the freedom of rotation direction of the seal pressing sleeve 41. As Figure 54 As shown in / 57 / 58, the inner protrusion 14 of the interface end 11 extends into the axial groove 42B to limit the freedom of rotation direction of the locking member pressing sleeve 42.

[0258] As Figure 59 As shown, the rotating mechanism 50 includes a rotating sleeve 51, and three equally distributed fifth cylindrical pins 518 are provided on the outer cylindrical surface of the rotating sleeve 51. As Figure 54 As shown in / 55 / 57, the rotating sleeve 51 is sleeved inside the locking member pressing sleeve 42, and the fifth cylindrical pin 518 passes through the fifth inclined slot 415, the sixth inclined slot 427 and the rotating straight hole 18; when the pressing mechanism 40 is in a completely loose and non-pressed state, rotate the rotating sleeve 51, under the action of the fifth inclined slot 415, the fifth cylindrical pin 518 moves the seal pressing sleeve 41 towards the seal 20, and the seal 20 is pressed; under the action of the sixth inclined slot 427, the fifth cylindrical pin 518 moves the locking member pressing sleeve 42 towards the elastic member 32, and the elastic member 32 is pressed in the fixed groove A1.

[0259] Rotate the rotating sleeve 51, and through the guiding action of the fifth cylindrical pin 518 moving in the fifth inclined slot 415 and the sixth inclined slot 427, convert the rotational motion into a push-pull action, realizing the push-pull linkage of the seal pressing sleeve 41 and the locking member pressing sleeve 42, which is convenient and fast for installation and disassembly.

[0260] As Figure 55 As shown in / 59, the rotating and pressing pipe joint further includes a snap component 70, and the fifth cylindrical pin 518 is fixed on the snap component 70. As Figure 15 As shown, the snap component 70 includes an elastic ring 71 and three equally distributed snap positioning shafts 73. The elastic ring 71 is in a cylindrical ring shape, and a number of U-shaped holes 72 are staggered on the cylindrical surface, and the opening direction of the U-shaped holes 72 is along the axial direction; the snap positioning shafts 73 are fixed on the cylindrical surface of the elastic ring 71 in the radial direction to install the fifth cylindrical pin 518. The fifth cylindrical pin 518 is fixed on the snap component 70, making the installation and disassembly of the above cylindrical pin convenient and fast.

[0261] As Figure 61 As shown, a locking groove 63 is provided on the locking member pressing sleeve 42 (not shown in the figure), and the locking mechanism 60 is installed in the locking groove 63; the locking mechanism 60 has the same structure as that in the third embodiment.

[0262] As Figure 52As shown in / 54 / 56, the rotating mechanism 50 further includes a rotating sleeve 52. The rotating sleeve 52 has a rotating sleeve fixing hole 521 and three evenly distributed cylindrical pin fixing protrusions 525. The rotating sleeve fixing hole 521 is not shown in the figure. The fifth cylindrical pin 518 is located within the cylindrical pin fixing protrusions 525. As Figure 53 As shown in / 54, the rotating sleeve 52 is sleeved outside the interface end 11. After installation, the locking fixed shaft 61 is located within the rotating sleeve fixing hole 521. Using the rotating sleeve 52 to drive the rotation of the rotating sleeve 51 is convenient for operation; after the rotating sleeve 52 is installed, the strength of the entire joint body 10 can also be enhanced.

[0263] As Figures 62 to 69 shown, it is the fifth embodiment of the rotating and pressing pipeline joint of the present invention.

[0264] As Figure 62 As shown in / 63, the rotating and pressing pipeline joint of this embodiment includes a joint body 10, a sealing member 20, a locking mechanism 30, a pressing mechanism 40, a rotating mechanism 50, and a locking mechanism 60.

[0265] As Figure 62 As shown in / 65, the joint body 10 is a straight-through joint and has two interface ends 11 for connecting pipeline A. The middle part of the joint body 10 has a circumferential inward contraction position 12, which is used for limiting the insertion depth of pipeline A. The outside of the joint body 10 has an expansion pipe section 1B. Each interface end 11 respectively includes a sealing member limiting step 13, an outer protrusion 1C, an inner protrusion 14, a locking fixed hole 17, and a rotating straight hole 18. The sealing member limiting step 13 is located inside the inner side of the interface end 11; the inner protrusion 14 is located on the expansion pipe section 1B of the outer cylindrical surface of the interface end 11, the outer protrusion 1C is located on the outer cylindrical surface of the middle section, the inner protrusion 14 and the outer protrusion 1C are respectively parallel to the axis and are three evenly distributed; the rotating straight holes 18 are three evenly distributed and are respectively perpendicular to the axis; the locking fixed hole 17 is used for installing the locking mechanism 60.

[0266] As Figure 62 As shown in / 64, a sealing member gasket 21 is provided on the sealing member limiting step 13 inside the interface end 11. The end face of the sealing member 20 presses on the sealing member gasket 21, and the sealing member 20 seals between the inner wall of the interface end 11 and the outer wall of pipeline A.

[0267] As Figure 62 As shown in / 64 / 67, the locking mechanism 30 is an elastic member 32. The elastic member 32 expands and contracts radially, and a fixed groove A1 is provided on pipeline A for installing the elastic member 32. The elastic member 32 radially contracts and snaps into the fixed groove A1 of pipeline A to achieve the locking of pipeline A. This locking mechanism 30 has a firm lock and is not affected by a large deviation in the outer diameter of pipeline A or deformation. As Figure 67 shown, this elastic member 32 is a spring coil.

[0268] like Figure 62 As shown in FIG. 67 , the pushing mechanism 40 includes a sealing member pushing sleeve 41 and a locking member pushing sleeve 42 .

[0269] like Figure 67 As shown in / 68, a seal 20 is arranged at one end of the seal pushing sleeve 41, and the other end is a fifth end face 416. There are three evenly distributed seal sleeve protrusions 41A on the cylindrical surface. The seal sleeve protrusion 41A is located inside the outer protrusion 1C of the interface end 11 to limit the freedom of rotation direction of the seal pushing sleeve 41.

[0270] like Figure 62 As shown in FIG. 67 and FIG. 69, an elastic component 32 is disposed at the outer end surface of the locking member pushing sleeve 42, and three evenly distributed seventh oblique strip holes 428 and three evenly distributed axial recesses 43 are disposed on the cylindrical surface. Figure 64 As shown, the inner protrusion 14 of the interface end 11 extends into the axial groove 42B to limit the freedom of the locking member pushing sleeve 42 in the rotation direction.

[0271] like Figure 67 As shown in / 69, the rotating mechanism 50 includes a rotating sleeve 51, one end of which is a sixth end face 519, the sixth end face 519 cooperates with the fifth end face 416, and the outer cylindrical surface of the rotating sleeve 51 is provided with three evenly distributed sixth cylindrical pins 51A, the sixth cylindrical pins 51A are fixed on the cylindrical pin fixing ring 51B, and the cylindrical pin fixing ring 51B is sleeved in the rotating sleeve 51.

[0272] like Figure 64 As shown in / 67, the fifth end face 416 and the sixth end face 519 are respectively provided with a plurality of inclined end faces; the rotating sleeve 51 is rotated, and the mutually cooperating inclined end faces move relative to each other, so that the cooperation between the fifth end face 416 and the sixth end face 519 is divided into two extreme states, namely, complete engagement and complete misalignment; the rotating sleeve 51 is sleeved in the locking member pushing sleeve 42, and the sixth cylindrical pin 51A passes through the seventh oblique bar hole 428 and the rotating straight hole 18; when the pushing mechanism 40 is in a completely loosened and unpressed state, the rotating sleeve 51 is rotated, and the sealing member pushing sleeve 41 moves the sealing member pushing sleeve 41 toward the sealing member 20 under the action of the relative movement of the inclined end faces of the fifth end face 416 and the sixth end face 519, and the sealing member 20 is pressed; the sixth cylindrical pin 51A moves the locking member pushing sleeve 42 toward the elastic member 32 under the action of the seventh oblique bar hole 428, and the elastic member 32 is pressed in the fixing groove A1.

[0273] Rotate the rotating sleeve 51. Under the action of the inclined end face, the seal pressing sleeve 41 moves axially to compress the seal 20. The sixth cylindrical pin 51A moves in the seventh inclined strip hole 428 to guide the locking member pressing sleeve 42 to move axially to apply pressure to the locking member to lock the pipeline A, realizing the push-pull linkage of the locking member pressing sleeve 42, and the installation and disassembly are convenient and fast.

[0274] As Figure 55 shown in / 59, the rotary push-pull pipe joint further includes a snap component 70, and the fifth cylindrical pin 518 is fixed on the snap component 70. As Figure 15 shown, the snap component 70 includes an elastic ring 71 and three evenly distributed snap positioning shafts 73. The elastic ring 71 is in a cylindrical shape, and there are several U-shaped holes 72 staggered on the cylindrical surface. The opening direction of the U-shaped holes 72 is along the axial direction; the snap positioning shafts 73 are fixed on the cylindrical surface of the elastic ring 71 in the radial direction to install the sixth cylindrical pin 51A. The sixth cylindrical pin 51A is fixed on the snap component 70, making the installation and disassembly of the above-mentioned cylindrical pin convenient and fast.

[0275] As Figure 67 shown, a locking groove 63 is provided on the locking member pressing sleeve 42 (not shown in the figure), and the locking mechanism 60 is installed in the locking groove 63; the locking mechanism 60 has the same structure as that in the third embodiment.

[0276] As Figure 62 shown in / 64 / 66, the rotating mechanism 50 further includes a rotating sleeve 52. The rotating sleeve 52 has a rotating sleeve fixing hole 521 and three evenly distributed cylindrical pin fixing protrusions 525. The rotating sleeve fixing hole 521 is not shown in the figure, and the sixth cylindrical pin 51A is located in the cylindrical pin fixing protrusion 525. As Figure 63 shown in / 64, the rotating sleeve 52 is sleeved outside the interface end 11. After installation, the locking fixed shaft 61 is located in the rotating sleeve fixing hole 521. Using the rotating sleeve 52 to drive the rotation of the rotating sleeve 51 is convenient for operation; after the rotating sleeve 52 is installed, the strength of the entire joint body 10 can also be enhanced.

[0277] As Figures 70 to 81 shown, the sixth embodiment of the rotary push-pull pipe joint of the present invention.

[0278] As Figure 70 shown in / 71, the rotary push-pull pipe joint of this embodiment includes a joint body 10, a seal 20, a locking mechanism 30, a pressing mechanism 40, a rotating mechanism 50 and a locking mechanism 60.

[0279] As Figure 70As shown in / 74, the joint body 10 is a straight-through joint, having two interface ends 11 for connecting the pipeline A. There is a circumferential retracted position 12 in the middle of the joint body 10, and this retracted position 12 is used for limiting the insertion depth of the pipeline A. The outside of the joint body 10 has an expansion pipe section 1B. Each interface end 11 respectively includes a seal limiting step 13, an inner protrusion 14, a locking fixing hole 17 and a rotating straight hole 18. The seal limiting step 13 is located inside the inner side of the interface end 11; the inner protrusion 14 is located on the expansion pipe section 1B of the outer cylindrical surface of the interface end 11, the inner protrusion 14 is parallel to the axis, and is divided into three evenly distributed ones; the rotating straight holes 18 are three evenly distributed ones, respectively perpendicular to the axis; the locking fixing hole 17 is used for installing the locking mechanism 60.

[0280] As Figure 70 As shown in / 72, a seal gasket 21 is provided on the seal limiting step 13 inside the interface end 11. The end face of the seal 20 is pressed on the seal gasket 21, and the seal 20 seals between the inner wall of the interface end 11 and the outer wall of the pipeline A.

[0281] As Figure 72 As shown in / 75 / 76, the locking mechanism 30 is an elastic member 32. The elastic member 32 expands and contracts radially, and a fixed groove A1 is provided on the pipeline A for installing the elastic member 32. The pipeline A is locked by the radial contraction of the elastic member 32 being buckled into the fixed groove A1 of the pipeline A. This locking mechanism 30 has a firm lock and is not affected by a large deviation in the outer diameter of the pipeline A or deformation. As Figure 75 shown, the elastic member 32 is a spring coil.

[0282] As Figure 75 As shown in / 76, the pushing mechanism 40 includes a seal pushing sleeve 41 and a locking member pushing sleeve 42.

[0283] As Figure 76 As shown in / 77 / 78, one end of the seal pushing sleeve 41 is provided with a seal 20, and the other end is the fifth end face 416. There are three evenly distributed axial concave portions 43 on the cylindrical surface. As Figure 72 As shown in / 73, the inner protrusion 14 of the interface end 11 extends into the axial groove 42B to limit the freedom of rotation direction of the seal pushing sleeve 41.

[0284] As Figure 76 As shown in / 77 / 80, the elastic member 32 is provided at the outer end face of the locking member pushing sleeve 42. There are three evenly distributed seventh inclined strip holes 428 and three evenly distributed axial concave portions 43 on the cylindrical surface. As Figure 72 As shown in / 73, the inner protrusion 14 of the interface end 11 extends into the axial groove 42B to limit the freedom of rotation direction of the locking member pushing sleeve 42.

[0285] As Figure 76As shown in FIG. 79 , the rotating mechanism 50 includes a rotating sleeve 51 , the end of the rotating sleeve 51 is a sixth end face 519 , the sixth end face 519 cooperates with the fifth end face 416 , and the outer cylindrical surface of the rotating sleeve 51 is provided with three evenly distributed sixth cylindrical pins 51A.

[0286] like Figure 72 As shown in / 75 / 76, the fifth end face 416 and the sixth end face 519 are respectively provided with a plurality of inclined end faces; the rotating sleeve 51 is rotated, and the mutually cooperating inclined end faces move relative to each other, so that the cooperation between the fifth end face 416 and the sixth end face 519 is divided into two extreme states, namely, complete engagement and complete misalignment; the rotating sleeve 51 is sleeved in the locking member pushing sleeve 42, and the sixth cylindrical pin 51A passes through the seventh oblique bar hole 428 and the rotating straight hole 18; when the pushing mechanism 40 is in a completely loosened and unpressed state, the rotating sleeve 51 is rotated, and the sealing member pushing sleeve 41 moves the sealing member pushing sleeve 41 toward the sealing member 20 under the action of the relative movement of the inclined end faces of the fifth end face 416 and the sixth end face 519, and the sealing member 20 is pressed; the sixth cylindrical pin 51A moves the locking member pushing sleeve 42 toward the elastic member 32 under the action of the seventh oblique bar hole 428, and the elastic member 32 is pressed in the fixing groove A1.

[0287] Rotate the rotating sleeve 51, and the sealing member pushing sleeve 41 moves axially under the action of the inclined end surface to press the sealing member 20, and the sixth cylindrical pin 51A moves in the seventh inclined bar hole 428 to guide the locking member pushing sleeve 42 to move axially to press the locking member to lock the pipe A, thereby realizing the push-pull linkage of the locking member pushing sleeve 42, and the installation and disassembly are convenient and quick.

[0288] like Figure 73 As shown in FIG. 77, the rotary push pipe joint further includes a snap assembly 70, and the fifth cylindrical pin 518 is fixed on the snap assembly 70. Figure 15 As shown, the snap assembly 70 includes an elastic ring 71 and three evenly distributed snap positioning shafts 73. The elastic ring 71 is cylindrical, and has a plurality of U-shaped holes 72 arranged alternately on the cylindrical surface, and the opening direction of the U-shaped holes 72 is along the axial direction; the snap positioning shaft 73 is fixed on the cylindrical surface of the elastic ring 71 and arranged in the radial direction to install the sixth cylindrical pin 51A. The sixth cylindrical pin 51A is fixed on the snap assembly 70, so that the above cylindrical pin can be installed and removed conveniently and quickly.

[0289] like Figure 80 As shown, the locking member push sleeve 42 is provided with a locking groove 63, and the locking groove 63 is installed with the locking mechanism 60; Figure 76 As shown, the locking mechanism 60 has the same structure as that in the third embodiment.

[0290] like Figure 70As shown in / 75 / 81, the rotating mechanism 50 further includes a rotating sleeve 52. The rotating sleeve 52 has a rotating sleeve fixing hole 521 and three equally spaced cylindrical pin fixing protrusions 525. The sixth cylindrical pin 51A is located within the cylindrical pin fixing protrusion 525. As shown in Figures 70 / 71, the rotating sleeve 52 is sleeved outside the interface end 11. After installation, the locking fixed shaft 61 is located within the rotating sleeve fixing hole 521. Using the rotating sleeve 52 to drive the rotation of the rotating sleeve 51 is convenient for operation; after the rotating sleeve 52 is installed, it can also enhance the strength of the entire joint body 10.

[0291] As Figures 82 to 91 shown, the seventh embodiment of the rotating and pressing pipe joint of the present invention.

[0292] As Figure 82 shown in / 83, the rotating and pressing pipe joint of this embodiment includes a joint body 10, a sealing member 20, a locking mechanism 30, a pressing mechanism 40, a rotating mechanism 50, and a locking mechanism 60.

[0293] As Figure 82 shown in / 85, the joint body 10 is a straight-through joint and has two interface ends 11 for connecting pipe A. The middle of the joint body 10 has a circumferential inward contraction 12, which is used for limiting the insertion depth of pipe A. Each interface end 11 respectively includes a sealing member limiting step 13, an inner protrusion 14, a locking fixed hole 17, and a rotating straight hole 18. The sealing member limiting step 13 is located inside and on the inner side of the interface end 11; the inner protrusion 14 is located on the outer cylindrical surface of the interface end 11. The inner protrusion 14 is parallel to the axis and is divided into two rows, with three equally spaced in each row; the rotating straight holes 18 are in two rows, with three equally spaced in each row, and are respectively perpendicular to the axis; the locking fixed hole 17 is used for installing the locking mechanism 60.

[0294] As Figure 82 shown in / 84, a sealing member gasket 21 is provided on the sealing member limiting step 13 inside the interface end 11. The end face of the sealing member 20 presses on the sealing member gasket 21, and the sealing member 20 seals between the inner wall of the interface end 11 and the outer wall of pipe A.

[0295] As Figure 82 shown in / 84 / 86, the locking mechanism 30 is an elastic member 32. The elastic member 32 expands and contracts radially, and a fixed groove A1 is provided on pipe A for installing the elastic member 32. The elastic member 32 radially contracts and snaps into the fixed groove A1 on pipe A to achieve the locking of pipe A. This locking mechanism 30 has a firm lock and is not affected by a large deviation in the outer diameter of pipe A or deformation. As Figure 86 shown, this elastic member 32 is a spring coil.

[0296] As Figure 82 shown in / 86, the pressing mechanism 40 includes a sealing member pressing sleeve 41 and a locking member pressing sleeve 42.

[0297] As Figure 86 / 78 shows, a seal 20 is provided at one end of the seal pressing sleeve 41, the other end is the seventh end face 417, and there are three evenly distributed axial recesses 43 on the cylindrical surface. As Figure 84 / 85 / 86 shows, the inner protrusion 14 of the interface end 11 extends into the axial groove 42B to limit the freedom of rotation direction of the seal pressing sleeve 41.

[0298] As Figure 82 / 84 / 86 shows, an elastic member 32 is provided at the outer end face of the locking member pressing sleeve 42, and there are three evenly distributed seventh inclined strip holes 428 and three evenly distributed axial recesses 43 on the cylindrical surface. As Figure 84 / 85 / 86 shows, the inner protrusion 14 of the interface end 11 extends into the axial groove 42B to limit the freedom of rotation direction of the locking member pressing sleeve 42.

[0299] As Figure 86 / 87 / 89 shows, the rotating mechanism 50 includes a first rotating sleeve 53 and a second rotating sleeve 54. The first rotating sleeve 53 is located inside the interface end 11, one end is the eighth end face 532, the eighth end face 532 cooperates with the seventh end face 417, and there are three evenly distributed seventh cylindrical pins 531 on the outer cylindrical surface; the second rotating sleeve 54 is provided at the other end of the first rotating sleeve 53, and there are three evenly distributed eighth cylindrical pins 541 on the outer cylindrical surface. The second rotating sleeve 54 is sleeved inside the locking member pressing sleeve 42, and the eighth cylindrical pin 541 passes through the eighth inclined strip hole 429.

[0300] As Figure 84 / 85 / 86 shows, the seventh cylindrical pin 531 and the eighth cylindrical pin 541 pass through different rows of rotating straight holes 18 respectively; several inclined end faces are provided on the seventh end face 417 and the eighth end face 532 respectively; when the first rotating sleeve 53 is rotated, the mutually cooperating inclined end faces move relative to each other, and the cooperation between the seventh end face 417 and the eighth end face 532 is divided into two extreme states, namely complete engagement and complete disengagement.

[0301] As Figure 82 / 83 / 84 shows, when the pressing mechanism 40 is in a completely loose and non-pressed state, by rotating the first rotating sleeve 53, under the action of the relative movement of the inclined end faces of the seventh end face 417 and the eighth end face 532, the seal pressing sleeve 41 is moved towards the seal 20, and the seal 20 is pressed; by rotating the second rotating sleeve 54, under the action of the eighth inclined strip hole 429, the locking member pressing sleeve 42 is moved towards the elastic member 32, and the elastic member 32 is pressed in the fixed groove A1.

[0302] The seal pressing sleeve 41 presses the seal 20 under the action of the relative movement of the inclined end face. The eighth cylindrical pin 541 moves in the eighth inclined slot 429 to guide the axial movement of the locking member pressing sleeve 42 to press the locking member to lock the pipe A, realizing the push-pull linkage of the locking member pressing sleeve 42, and the installation and disassembly are convenient and fast.

[0303] As Figure 90 shown, the locking member pressing sleeve 42 is provided with a locking groove 63, and the locking mechanism 60 is installed in the locking groove 63; as Figure 86 shown, the locking mechanism 60 has the same structure as that in the third embodiment.

[0304] As Figure 83 shown in / 84 / 91, the rotating mechanism 50 further includes a rotating sleeve 52. The rotating sleeve 52 has a rotating sleeve fixing hole 521 and three evenly distributed cylindrical pin fixing protrusions 525. The seventh cylindrical pin 531 and the eighth cylindrical pin 541 are respectively located in the cylindrical pin fixing protrusions 525. As Figure 82 shown in / 83, the rotating sleeve 52 is sleeved outside the interface end 11. After installation, the locking fixed shaft 61 is located in the rotating sleeve fixing hole 521. Using the rotating sleeve 52 to drive the rotation of the rotating sleeve 51 is convenient for operation; after the rotating sleeve 52 is installed, the strength of the entire joint body 10 can also be enhanced.

[0305] As Figures 92 to 97 shown, the eighth embodiment of the rotating and pressing pipe joint of the present invention.

[0306] As Figure 92 shown in / 93, the rotating and pressing pipe joint of this embodiment includes a joint body 10, a seal 20, a locking mechanism 30, a pressing mechanism 40, a rotating mechanism 50 and a locking mechanism 60.

[0307] As Figure 92 shown in / 95, the joint body 10 is a straight-through joint, having two interface ends 11 for connecting the pipe A. The middle part of the joint body 10 has a circumferential inner contraction 12, which is used for limiting the insertion depth of the pipe A. Each interface end 11 respectively includes a seal limiting step 13, a first rotating inclined slot 19, a second rotating inclined slot 1A, an outer convex ring 1D, a locking fixing hole 17 and an opening groove 16. The opening groove 16 is located at the end of the interface end 11 and is divided into three evenly distributed ones. The opening direction is set along the axial direction. The setting of the opening groove 16 makes the end of the interface end 11 have the elasticity of expansion and contraction, which is convenient for the installation of internal and external parts of the interface end 11; the seal limiting step 13 is located inside the inner side of the interface end 11; the locking fixing hole 17 is used for installing the locking mechanism 60.

[0308] As Figure 92As shown in / 94 / 96, a sealing gasket 21 and a sealing pressure ring 22 are provided on the sealing limiting step 13 inside the interface end 11, one end face of the seal 20 is pressed on the sealing gasket 21, and the other end face of the seal 20 is pressed by the sealing pressure ring 22, and the seal 20 is sealed between the inner wall of the interface end 11 and the outer wall of the pipeline A.

[0309] like Figure 92 As shown in / 94 / 96, the locking mechanism 30 is an elastic component 32, which is radially retractable, and a fixing groove A1 is provided on the pipe A to install the elastic component 32. The elastic component 32 is radially retracted and buckled into the fixing groove A1 of the pipe A to lock the pipe A. The locking mechanism 30 is firmly locked and is not affected by the large deviation or deformation of the outer diameter of the pipe A. Figure 96 As shown, the elastic component 32 is a spring ring.

[0310] like Figure 96 As shown, the pushing mechanism 40 includes a sealing member pushing sleeve 41 and a locking member pushing sleeve 42 .

[0311] like Figure 96 As shown, a sealing member pressing ring 22 is arranged at one end of the sealing member pushing sleeve 41, and three evenly distributed ninth cylindrical pins 418 are arranged on the cylindrical surface.

[0312] like Figure 96 As shown, an elastic component 32 is arranged at the outer end surface of the locking member pushing sleeve 42, and three evenly distributed tenth cylindrical pins 42A are arranged on the cylindrical surface.

[0313] like Figure 92 As shown in / 94 / 97, the rotating mechanism 50 is a rotating cylindrical tube 55, which has a raised ring 553, and the raised ring 553 is mounted on the outer raised ring 1D outside the interface end 11. The cylindrical surface of the rotating cylindrical tube 55 has a plurality of long protrusions 551, and the long protrusions 551 are parallel to the axis and protrude from the inside to the outside.

[0314] like Figure 92 As shown in / 93 / 94, the seventh cylindrical pin 531 and the eighth cylindrical pin 541 pass through different rows of rotating straight holes 18 respectively; the seventh end face 417 and the eighth end face 532 are respectively provided with a plurality of inclined end faces; by rotating the first rotating sleeve 53, the mutually matching inclined end faces move relative to each other, and the matching of the seventh end face 417 and the eighth end face 532 is divided into two extreme states, namely, complete engagement and complete misalignment.

[0315] like Figure 92As shown in FIGS. 93 / 94, the ninth cylindrical pin 418 and the tenth cylindrical pin 42A respectively extend into the long strip protrusion 551 through the rotating inclined strip holes in different rows. When the pressing mechanism 40 is in a completely loose and non-pressed state, by rotating the rotating cylinder 55, under the action of the first rotating inclined strip hole 19, the ninth cylindrical pin 418 pushes the seal pressing sleeve 41 towards the seal 20, and the seal 20 is pressed; under the action of the second rotating inclined strip hole 1A, the tenth cylindrical pin 42A pushes the locking member pressing sleeve 42 towards the elastic member 32, and the elastic member 32 is pressed in the fixed groove A1.

[0316] The seal pressing sleeve 41 moves under the guidance of the ninth cylindrical pin 418 in the first rotating inclined strip hole 19 to press the seal 20, and the locking member pressing sleeve 42 moves under the guidance of the tenth cylindrical pin 42A in the second rotating inclined strip hole 1A to press the elastic member 32 to lock the pipeline A, realizing the push-pull linkage of the seal pressing sleeve 41 and the locking member pressing sleeve 42, which is convenient and fast for installation and disassembly.

[0317] As Figure 96 shown, the locking member pressing sleeve 42 is provided with a locking groove 63, and the locking mechanism 60 is installed in the locking groove 63; the locking mechanism 60 has the same structure as that in the third embodiment.

[0318] As [[ shown, the rotating cylinder 55 includes a cylinder fixing hole 552. After installation is completed, the locking fixed shaft 61 is located in the cylinder fixing hole 552 to fix the rotating cylinder 55 in place, and the rotating cylinder is rotated to complete the installation action, which is convenient to operate.

[0319] In the above embodiments, the joint body can also be a single-head, elbow, tee joint or multi-way joint.

[0320] In summary, as described in the specification and drawings of the present invention, actual samples are made and tested through multiple uses. From the test results, it is proved that the invention can achieve the expected purpose, and its practicability is beyond doubt. The above-mentioned embodiments are only used to conveniently illustrate the content of the invention and are not intended to limit it formally; any person with common general knowledge in the technical field can, without departing from the technical features and similar features of the present invention, make local changes or modified equivalent embodiments using the technical content disclosed by the present invention, and all belong to the protection scope of the present invention.

Claims

1. A rotary push-press pipe joint, characterized in that include: The connector body has an interface end, and the interface end is provided with the following connection mechanism; Seals; Locking mechanism; The pushing mechanism has the freedom of axial linear motion, axially pushes the sealing member to form a compression seal, and axially pushes the locking mechanism to form a compression lock; A rotating mechanism limits the freedom of its axial linear motion and has the freedom of the rotational motion direction. Rotating the rotating mechanism drives the pushing mechanism to move axially linearly, pushing or releasing the sealing member and the locking mechanism; as well as A locking mechanism, which fixes the rotating mechanism or the pushing mechanism to the interface end when the rotating mechanism rotates into place; The pushing mechanism comprises: A sealing member pushing sleeve, one end of which is provided with the sealing member, and the other end is a first end surface, and the locking mechanism is provided to limit the freedom of the sealing member pushing sleeve in the rotation direction inside the interface end; and The locking member pushes the sleeve, one end of which fixes the locking mechanism, and the other end is a second end surface, which limits the freedom of the locking member pushing sleeve in the rotation direction inside the interface end; The rotating mechanism comprises a rotating sleeve, which is located inside the interface end and has a third end face and a fourth end face, wherein the third end face cooperates with the first end face, and the fourth end face cooperates with the second end face; The first end face, the second end face, the third end face and the fourth end face are respectively provided with a plurality of oblique end faces; the rotating sleeve is rotated, and the mutually matching oblique end faces move relatively, and the matching of the third end face with the first end face is divided into two limit states, namely, complete buckling and complete misalignment, and the matching of the fourth end face with the second end face is divided into two limit states, namely, complete buckling and complete misalignment; when moving from the complete buckling state to the complete misalignment state, the sealing member is firstly pressed to form a seal, and the locking mechanism is then pressed to lock the pipeline; The outer cylindrical surface of the locking member pushing sleeve is provided with a plurality of first cylindrical pins; The cylindrical surface of the rotating sleeve is provided with a plurality of first combination holes, wherein the first combination holes are first straight holes and first oblique holes connected to each other, and the first straight holes are perpendicular to the axis; The cylindrical surface of the rotating sleeve is provided with a plurality of protrusions, one end of each protrusion being the fourth end surface; The locking member pushing sleeve is sleeved in the rotating sleeve, and the first cylindrical pin passes through the first combination hole; when the first end face and the third end face are in a fully engaged state, the first cylindrical pin is located at the initial end of the first straight hole, and the rotating sleeve is rotated. When the first cylindrical pin moves in the first straight hole to the end of the first straight hole, the first end face and the third end face are in a completely staggered state, and the sealing member pushing sleeve moves axially to press the sealing member; at this time, the second end face and the fourth end face are in a fully engaged state, and the rotating sleeve continues to rotate. When the first cylindrical pin enters the first oblique hole and moves to its end, the second end face and the fourth end face are in a completely staggered state, and the locking member pushing sleeve presses the locking mechanism to lock the pipeline.

2. The rotary push pipe joint according to claim 1, characterized in that: The seal pushing sleeve axially pushes the seal, and the locking member pushing sleeve axially pushes the locking mechanism.

3. The rotary push-press pipe joint according to claim 1, characterized in that, The locking mechanism is a disc spring with a number of pointed teeth, and the pointed teeth bite into the pipeline; The seal pushing sleeve, the locking member pushing sleeve and the rotating sleeve are replaced as follows: The pushing mechanism includes: A seal pushing sleeve, with the seal provided at one end and a first end face at the other end, where the locking mechanism is provided to restrict the freedom of rotation of the seal pushing sleeve in the interface end; and A locking member pushing sleeve, with the locking mechanism fixed at one end and a second end face at the other end, restricting the freedom of rotation of the locking member pushing sleeve in the interface end; The rotating mechanism includes a rotating sleeve located inside the interface end, having a third end face and a fourth end face, where the third end face cooperates with the first end face and the fourth end face cooperates with the second end face; Wherein, the first end face, the second end face, the third end face and the fourth end face are respectively provided with a number of inclined end faces; by rotating the rotating sleeve, the mutually cooperating inclined end faces move relative to each other, and the cooperation between the third end face and the first end face is divided into two extreme states, namely complete engagement and complete disengagement, and the cooperation between the fourth end face and the second end face is divided into two extreme states, namely complete engagement and complete disengagement; when moving from complete engagement to complete disengagement respectively, the seal is first pressed to form a seal, and then the locking mechanism is pressed to lock the pipeline; The cylindrical surface of the seal pushing sleeve has a number of second combined holes, and the second combined holes are second straight holes and second inclined holes connected to each other, and the second straight holes are perpendicular to the axis; The cylindrical surface of the locking member pushing sleeve has a number of third combined holes, and the third combined holes are third straight holes and third inclined holes connected to each other, and the third straight holes are perpendicular to the axis; One end of the rotating sleeve is a double-layer structure, with the third end face on the outer layer and the fourth end face on the inner layer, and a number of second cylindrical pins are provided on the inner cylindrical surface; Wherein, the locking member pushing sleeve is sleeved inside the seal pushing sleeve, the second straight holes correspond to the third inclined holes, and the second inclined holes correspond to the third straight holes; the second cylindrical pins pass through the second combined holes and the third combined holes; when the cooperation states of the third end face and the first end face and the fourth end face and the second end face are both in complete engagement, by rotating the rotating sleeve, the second cylindrical pins move in the second inclined holes and the third straight holes, and the seal pushing sleeve axially moves under the action of the second inclined holes until the third end face and the first end face are in a completely dislocated state, pressing the seal; by continuing to rotate the rotating sleeve, the second cylindrical pins move in the third inclined holes and the second straight holes, and the locking member pushing sleeve axially moves under the action of the third inclined holes until the second end face and the fourth end face are in a completely dislocated state, pressing the disc spring to force the pointed teeth to bite into the pipeline to lock the pipeline.

4. The rotating and pressing pipe joint according to claim 1, characterized in that, The locking mechanism is a disc spring with a number of pointed teeth, and the pointed teeth bite into the pipeline; The seal pressing sleeve, the locking member pressing sleeve, and the rotating sleeve are replaced as follows: One end of the seal pressing sleeve is provided with the seal, the other end is provided with the disc spring, and several long holes parallel to the axis are provided on the outer cylindrical surface; One end of the locking member pressing sleeve fixes the disc spring, and several third cylindrical pins and fourth inclined strip holes are provided on the outer cylindrical surface to limit the freedom degree of the rotation direction of the locking member pressing sleeve inside the interface end; The rotating sleeve is located inside the interface end, and several fourth cylindrical pins are provided on the outer cylindrical surface; Wherein, one end of the locking member pressing sleeve is sleeved in the seal pressing sleeve, and the third cylindrical pin extends out of the long hole; the rotating sleeve is sleeved in the locking member pressing sleeve, and the fourth cylindrical pin extends out of the fourth inclined strip hole; when the pressing mechanism is in a completely loose and not pressed state, rotate the rotating sleeve, under the action of the fourth inclined strip hole, the fourth cylindrical pin moves the seal pressing sleeve towards the seal direction, axially moves the locking member pressing sleeve towards the disc spring direction, the seal is pressed, and when the third cylindrical pin moves from one end of the long hole to the other end, the disc spring is pressed.

5. The rotary pressing pipe joint according to claim 1, wherein The locking mechanism is an elastic member, the elastic member expands and contracts radially, and a fixed groove is provided on the pipe to install the elastic member.

6. The rotary push-pressing pipe joint according to claim 5, characterized in that, The seal pressing sleeve, the locking member pressing sleeve, and the rotating sleeve are replaced as follows: The interface end has several rotary straight holes perpendicular to the axis; One end of the seal pressing sleeve is provided with the seal, and several fifth inclined strip holes are provided on the cylindrical surface to limit the freedom degree of the rotation direction of the seal pressing sleeve inside the interface end; One end of the locking member pressing sleeve is sleeved on the seal pressing sleeve, the other end is provided with the elastic member, and several sixth inclined strip holes are provided on the cylindrical surface to limit the freedom degree of the rotation direction of the locking member pressing sleeve inside the interface end; Several fifth cylindrical pins are provided on the outer cylindrical surface of the rotating sleeve; Wherein, the rotating sleeve is sleeved inside the locking member pressing sleeve, and the fifth cylindrical pin passes through the fifth inclined strip hole, the sixth inclined strip hole, and the rotary straight hole; when the pressing mechanism is in a completely loose and not pressed state, rotate the rotating sleeve, under the action of the fifth inclined strip hole, the fifth cylindrical pin moves the seal pressing sleeve towards the seal direction, and the seal is pressed; under the action of the sixth inclined strip hole, the fifth cylindrical pin moves the locking member pressing sleeve towards the elastic member direction, and the elastic member is pressed in the fixed groove.

7. The rotary push-press pipe joint according to claim 5, characterized in that, The seal pressing sleeve, the locking member pressing sleeve, and the rotating sleeve are replaced as follows: The interface end has several rotary straight holes perpendicular to the axis; One end of the seal pressing sleeve is provided with the seal, and the other end is the fifth end face to limit the freedom degree of the rotation direction of the seal pressing sleeve inside the interface end; The elastic component is arranged at the outer end surface of the locking member pushing sleeve, and a plurality of seventh oblique strip holes are arranged on the cylindrical surface to limit the freedom of rotation direction of the locking member pushing sleeve inside the interface end; One end of the rotating sleeve is a sixth end face, the sixth end face cooperates with the fifth end face, and a plurality of sixth cylindrical pins are arranged on the outer cylindrical surface; Wherein, the fifth end face and the sixth end face are respectively provided with a plurality of inclined end faces; the rotating sleeve is rotated, and the inclined end faces that cooperate with each other move relative to each other, and the cooperation between the fifth end face and the sixth end face is divided into two extreme states, namely, complete engagement and complete misalignment; the rotating sleeve is sleeved in the locking member pushing sleeve, and the sixth cylindrical pin passes through the seventh inclined bar hole and the rotating straight hole; when the pushing mechanism is in a completely loosened and unpressed state, the rotating sleeve is rotated, and the sealing member pushing sleeve moves the sealing member pushing sleeve toward the sealing member under the action of the relative movement of the inclined end faces of the fifth end face and the sixth end face, and the sealing member is pressed; the sixth cylindrical pin moves the locking member pushing sleeve toward the elastic member under the action of the seventh inclined bar hole, and the elastic member is pressed in the fixing groove.

8. The rotary push-press pipe joint according to claim 5, characterized in that, The sealing member pushing sleeve, the locking member pushing sleeve and the rotating mechanism are replaced as follows: The interface end has a plurality of rotating straight holes arranged in two rows and perpendicular to the axis; The seal pushing sleeve has the seal arranged at one end and a seventh end surface at the other end, which limits the freedom of the seal pushing sleeve in the rotation direction inside the interface end; The elastic component is arranged at the outer end surface of the locking member pushing sleeve, and a plurality of eighth oblique strip holes are arranged on the cylindrical surface to limit the freedom of the locking member pushing sleeve in the rotation direction inside the interface end; The rotating mechanism comprises: A first rotating sleeve, located inside the interface end, one end of which is an eighth end face, the eighth end face cooperates with the seventh end face, and a plurality of seventh cylindrical pins are provided on the outer cylindrical surface; and A second rotating sleeve is arranged at the other end of the first rotating sleeve, and a plurality of eighth cylindrical pins are arranged on the outer cylindrical surface. The second rotating sleeve is sleeved in the locking member pushing sleeve, and the eighth cylindrical pins pass through the eighth oblique bar holes; The seventh cylindrical pin and the eighth cylindrical pin respectively pass through different rows of the rotating straight holes; the seventh end face and the eighth end face are respectively provided with a plurality of oblique end faces; the first rotating sleeve is rotated, and the mutually matching oblique end faces move relatively, so that the matching of the seventh end face and the eighth end face is divided into two limit states, namely, complete engagement and complete misalignment; When the pushing mechanism is in a completely loosened and unpressed state, the first rotating sleeve is rotated, and the sealing pushing sleeve is moved toward the sealing member under the action of the relative movement of the oblique end faces of the seventh end face and the eighth end face, and the sealing member is pressed; the second rotating sleeve is rotated, and the eighth cylindrical pin is moved toward the elastic member under the action of the eighth oblique bar hole, and the elastic member is pressed in the fixing groove.

9. The rotary push-press pipe joint according to claim 5, characterized in that, The sealing member pushing sleeve, the locking member pushing sleeve and the rotating mechanism are replaced as follows: The interface end has a plurality of holes arranged in double rows, one row of which is first rotating bevel bar holes, and the other row is second rotating bevel bar holes; The sealing member pushes the sleeve, one end of which is provided with the sealing member, and the outer cylindrical surface is provided with a plurality of ninth cylindrical pins; The elastic component is arranged at the outer end surface of the locking member pushing sleeve, and a plurality of tenth cylindrical pins are arranged on the outer cylindrical surface; The rotating mechanism comprises a rotating cylindrical barrel, which is sleeved on the outside of the interface end, and the cylindrical surface of the rotating cylindrical barrel has a plurality of long protrusions, and the long protrusions are parallel to the axis and protrude from the inside to the outside; Among them, the ninth cylindrical pin and the tenth cylindrical pin respectively pass through different rows of the rotating bevel holes and extend into the long protrusion. When the pushing mechanism is in a completely loosened and not compressed state, the rotating cylindrical tube is rotated, and the ninth cylindrical pin, under the action of the first rotating bevel hole, pushes the sealing member to move the sleeve toward the sealing member, and the sealing member is compressed; the tenth cylindrical pin, under the action of the second rotating bevel hole, pushes the locking member to move the sleeve toward the elastic member, and the elastic member is compressed in the fixing groove.

10. The rotary pressing pipe joint according to claim 1, characterized in that, It also includes a snap-on assembly, the first cylindrical pin is fixed on the snap-on assembly, and the snap-on assembly includes: The elastic ring is cylindrical and has a plurality of U-shaped holes arranged alternately on the cylindrical surface. The U-shaped holes can be opened or shrunk; A plurality of spring-buckle positioning shafts are fixed on the cylindrical surface of the elastic ring and arranged along the radial direction, and the first cylindrical pin is installed outside the spring-buckle positioning shaft.

11. The rotary push pipe joint according to any one of claims 3 to 4, characterized in that: The rotating sleeve is provided with a locking groove for installing the locking mechanism; The locking mechanism comprises a spring sheet and a locking fixed shaft, the locking fixed shaft is fixed on the spring sheet, and the spring sheet is located in the locking groove; The interface end is provided with a locking and fixing hole, and after installation, the locking and fixing shaft is located in the locking and fixing hole.

12. The rotary push pipe joint according to any one of claims 6 to 9, characterized in that: The locking member pushing sleeve is provided with a locking groove for installing the locking mechanism; The locking mechanism comprises a spring sheet and a locking fixed shaft, the locking fixed shaft is fixed on the spring sheet, and the spring sheet is located in the locking groove; The interface end is provided with a locking and fixing hole, and after installation, the locking and fixing shaft is located in the locking and fixing hole.

13. The rotary push pipe joint according to claim 11, characterized in that: The rotating mechanism further includes a rotating sleeve having a rotating sleeve fixing hole, which is sleeved outside the interface end. The rotating sleeve is fixed to the rotating sleeve cylinder, and after installation, the locking fixing shaft is located in the rotating sleeve fixing hole.

14. The rotating push-pressing pipe joint according to claim 6, wherein The rotating mechanism further includes a rotating sleeve, which is sleeved outside the interface end. The cylindrical surface has a plurality of cylindrical pin fixing protrusions, and the fifth cylindrical pin is located in the cylindrical pin fixing protrusions.

15. The rotating push-pressing pipe joint according to claim 1, wherein The interface end has a plurality of inner protrusions, which are parallel to the axis; The outer cylindrical surface of the push-pressing mechanism has a plurality of axial recesses, which are located in the inner protrusions, and the push-pressing mechanism axially moves on the inner protrusions.

16. The rotating push-pressing pipe joint according to any one of claims 3 to 4, wherein The interface end has an inner concave ring; The rotating sleeve cylinder has an inner groove, which is matched with the inner concave ring, and the rotating sleeve cylinder rotates on the inner concave ring.

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