A quick-insert component

Abstract

A quick-insert component is used for quickly connecting a pipe joint and a connecting pipe orifice of a pipe. The pipe joint includes an insertion pipe that is fittingly inserted into the connecting pipe orifice at one end of the longitudinal inner side. One end of the longitudinal outer side of the insertion pipe bulges outward to form a pressing ring with an outer diameter larger than the inner diameter of the connecting pipe. It includes: an inner insertion pipe that is fittingly inserted into the connecting pipe orifice, a part of the inner wall of the pipe contracts radially outward to form a first stop surface longitudinally opposite to the inner insertion pipe; at least one second sealing ring sleeved in the pipe to provide longitudinal sealing between the pipe and the insertion pipe, which is located between the first stop surface and the inner insertion pipe; and a locking mechanism that can prevent the pressing ring from disengaging longitudinally outward in the locked state and allow the pressing ring to disengage longitudinally outward in the unlocked state.

Description

Technical Field

[0001] The present application relates to the field of sensor technology, and in particular to a quick-connect assembly. Background Art

[0002] The pressure sensor is used to measure the pressure of the pressure medium in the container, and its pressure sensitive element is usually installed on the circuit board and substrate. The substrate and the pressure interface are not integrated, so it must be reliably sealed with the shell to prevent leakage of the medium. On the other hand, when connecting the pressure sensor to the container, the pressure interface and the hard pipe mouth can be sealed by a sealing ring; when connecting with a hose, it is necessary to use a quick-connect assembly to connect.

[0003] The statements in this section merely provide background information related to the present application and may not constitute prior art. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present application provides a quick-connect assembly to provide reliable sealing or transition.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a quick-connect assembly for connecting a pipe joint and a connecting pipe opening of a pipe, wherein the pipe joint comprises a plug-in pipe having one longitudinal inner end cooperatively inserted into the connecting pipe opening, and one longitudinal outer end of the plug-in pipe protrudes outward to form a pressure ring having an outer diameter greater than the inner diameter of the connecting pipe, which comprises:

[0006] The inner insert tube is inserted into the connecting tube port, and a part of the inner wall of the tube is contracted radially outward to form a first stop surface which is opposite to the inner insert tube in the longitudinal direction;

[0007] At least one second sealing ring is sleeved inside the tube to seal longitudinally between the tube and the plug-in tube, and is located between the first stop surface and the inner plug-in tube;

[0008] A locking mechanism can prevent the pressure ring from escaping outwards in the longitudinal direction in a locked state and can allow the pressure ring to escaping outwards in the longitudinal direction in an unlocked state.

[0009] Preferably, the locking mechanism comprises: a locking seat which is penetrated longitudinally outward by the inserted tube, on which a accommodating cavity is provided, which is connected to the outer end of the inner tube or the tube, and the inner tube is inserted into the tube longitudinally to prevent it from falling out; and a locking assembly at least part of which is arranged in the accommodating cavity and can move laterally, when the part is in the first limit position, it longitudinally blocks the pressure ring; when the part is in the second limit position, it longitudinally releases the pressure ring.

[0010] Preferably, the locking and blocking assembly includes a third locking member slidably disposed on the locking seat in a transverse plane. The third locking member includes two side beams extending forward and backward and facing each other left and right. The rear end of the third locking member is fixedly connected to a second pressing portion in communication therewith. A separating structure is provided on the locking seat for separating the two side beams left and right when they move forward.

[0011] Preferably, the separating structure includes two separating columns extending outward to the front moving path of the side beams. A smooth contact surface is provided at the connection between the front side wall and the left and right inner side walls of the side beams. A bevel or a smooth surface is correspondingly provided at the connection between the rear side wall of the separating column and the left and right outer side walls.

[0012] Preferably, the locking seat includes an inner end portion and an outer end portion fixedly spaced apart from the longitudinal outer side of the inner end portion. The accommodation cavity is formed between the inner end portion and the outer end portion. Two guiding portions respectively approach the side beams on the corresponding left and right sides from the left and right sides. The left and right outer side walls of the side beams protrude outward to form anti-detachment portions, and the anti-detachment portions are located in front of the guiding portions on the corresponding left and right sides. The longitudinal two ends of the guiding portions are fixedly connected to the inner end portion and the outer end portion respectively.

[0013] Preferably, the front ends of the inner end portion and the outer end portion are fixedly connected by a connecting portion, and the longitudinal two ends of the separating column are fixedly connected to the inner end portion and the outer end portion respectively.

[0014] Preferably, a guiding rib extending forward and backward is fixed to one side of the side beam facing the inner end portion or the outer end portion, and a guiding rib accommodation groove for accommodating the guiding rib is correspondingly formed on the inner end portion or the outer end portion.

[0015] Preferably, a third blocking surface facing the insertion pipe is provided on the front side of the middle portion of the second pressing portion. Description of the Drawings

[0016] Figure 1 is an exploded view of the pressure sensor according to the first preferred embodiment of the present application;

[0017] Figure 2 is a cross-sectional view of the pressure sensor according to the first preferred embodiment of the present application;

[0018] Figure 3 is a perspective view of the pressure sensing assembly according to the first preferred embodiment of the present application;

[0019] Figure 4 is a cross-sectional view of the pressure sensing assembly according to the first preferred embodiment of the present application;

[0020] Figure 5 is a perspective view of the locking and blocking assembly according to the first preferred embodiment of the present application;

[0021] Figure 6 is a longitudinal end view of the locking and blocking assembly according to the first preferred embodiment of the present application;

[0022] Figure 7 Cross-sectional view of the quick-connect component of the first preferred embodiment of the present application in the uninstalled state;

[0023] Figure 8 Cross-sectional view of the quick-connect component of the first preferred embodiment of the present application in the initial installation state;

[0024] Figure 9 Top view of the combination of the pressure sensor and two pipe connectors of the second preferred embodiment of the present application;

[0025] Figure 10 For the combination of the pressure sensor and two pipe connectors of the second preferred embodiment of the present application along Figure 9 Cross-sectional view taken along A-A as shown in;

[0026] Figure 11 For the combination of the pressure sensor and two pipe connectors of the second preferred embodiment of the present application along Figure 9 Cross-sectional view taken along B-B as shown in;

[0027] Figure 12 Three-dimensional view of the combination of the pressure sensor and two pipe connectors of the second preferred embodiment of the present application;

[0028] Description of the reference numerals: 1011, the first stop surface; 1012, the second stop surface; 101, the tube; 1021, the second card hole; 102, the connecting seat; 103, the support surface; 104, the first sealing groove; 105, the first sealing groove; 106, the flange; 107, the medium hole; 108, the first guiding groove; 109, the first card hole; 112, the sealant; 1, the seat body; 201, the vertical part; 202, the crimping edge; 203, the embedding part; 2, the metal cylinder shell; 301, the first sealing ring; 302, the first sealing ring; 3, the sealing component; 401, the substrate; 402, the first circumferential positioning part; 403, the lower reinforcing plate; 404, the circuit board; 405, the connecting plate; 406, the upper circuit board; 407, the pin connection hole; 408, the pressure sensitive element; 409, the upper reinforcing plate; 411, the conductive elastic piece; 412, the electronic component; 413, the surrounding frame; 4, the pressure sensing component; 500, the pin; 501, the cylindrical part; 502, the plugging part; 503, the end part; 504, the thick part; 505, the crimping surface; 506, the supporting part; 507, the surrounding cavity; 508, the positioning column; 5, the terminal; 601, the second sealing ring; 602, the second sealing ring; 6031, the weak connecting part; 603, the sleeve; 604, the inner inserted tube; 605, the diameter-expanded part; 606, the buckle; 6070, the accommodating cavity; 6071, the outer wall; 6072, the inner end part; 6073, the outer end part; 6074, the side socket; 6075, the edge; 6076, the through port; 607, the locking seat; 6080, the second axial stop piece; 6081, the pulling part; 6082, the second pressing part; 6083, the first connecting beam; 6084, the bow-shaped strip; 6085, the sliding part limiting groove; 6086, the second connecting beam; 6087, the surrounding port; 6088, the second guiding groove; 608, the second locking piece; 6090, the first axial stop piece; 6091, the side beam; 6092, the elastic piece; 6093, the guiding part; 6094, the flexible stop piece; 6095, the radially outer end; 6096, the radially inner end; 6097, the sliding part; 6098, the first pressing part; 609, the first locking piece; 701, the inserting tube; 702, the pressing ring; 703, the polygonal part; 704, the external thread connecting part; 7, the pipe joint; 801, the fourth sealing ring; 802, the third sealing ring; 804, the inner inserted tube; 8070, the accommodating cavity; 8071, the connecting part; 8072, the inner end part; 8073, the outer end part; 8074, the side socket; 8075, the guiding part; 8076, the dividing column; 807, the locking seat; 8081, the anti-disengagement part; 8082, the second pressing part; 8083, the side beam; 8084, the smooth contact surface; 8085, the third stop surface; 8086, the guiding rib; 808, the third locking piece. Detailed implementation manners

[0029] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The following embodiments are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application. In the following description, the same reference numerals are used to represent the same or equivalent elements, and repeated descriptions are omitted.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0031] In addition, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0032] It should also be further understood that the term "and / or" used in the specification of the present application and the corresponding claims refers to any combination of one or more of the listed items and all possible combinations.

[0033] Such as Figures 1 to 4As shown. In the first embodiment of the present application, the pressure sensor includes a base body 1, a metal cylindrical shell 2, terminal buttons 5, a pressure sensing assembly 4, and a sealing assembly 3. The base body 1 is made of plastic and includes a longitudinal tube 101 and a connecting seat 102 fixed to the outer wall of the middle part of the tube 101. Each longitudinal end of the tube 101 is provided with a connecting pipe orifice. The connecting seat 102 is provided with a medium hole 107 that communicates inwardly with the interior of the tube 101. On the upper end surface of the connecting seat 102, at least one circle of first sealing grooves is provided around the medium hole 107, such as concentric first sealing grooves 104 and first sealing grooves 105. The edge of the medium hole 107 protrudes upward relatively to form a flange 106. The sealing assembly 3 includes a first sealing ring 301 disposed in the first sealing groove 104 and a first sealing ring 302 disposed in the first sealing groove 105. An upper support surface 103 for the upper terminal button 5 is formed outside the first sealing groove, and the support surface 103 and the lower end of the terminal button 5 can be set to be annular. The axial direction of the metal cylindrical shell 2 is arranged horizontally. One of its horizontal ends (shown as the lower end in the figure) is fixed to the connecting seat 102, and the other horizontal end is rolled inward to form a crimping edge 202 (shown as the upper end in the figure). The terminal button 5 and the metal cylindrical shell 2 and the connecting seat 102 together enclose an installation cavity (not marked). The terminal button 5 may include an end portion 503, a plug-in portion 502 and a cylindrical portion 501 extending upward and downward respectively from the outer edge of the end portion 503. The lower end of the pin 500 is fixedly inserted through the end portion 503 and extends into the installation cavity. On the side wall of the end of the connecting seat 102 away from the metal cylindrical shell 2, a second clamping hole 1021 may be provided to facilitate fixation with an external device.

[0034] The crimping edge 202 presses the terminal button 5 tightly against the connecting seat 102. Specifically, the outer diameter of the lower side part of the cylindrical portion 501 expands relatively to form a thick portion 504, and an upward pressing surface 505 is formed at the upper end of the thick portion 504. The crimping edge 202 presses tightly against the pressing surface 505 on one side of the base body 1. A sealing adhesive 112 may be provided between the vertical portion 201 and the tube 101. One end of the metal cylindrical shell 2 close to the base body 1 extends inward to form an embedded portion 203 embedded in the base body 1.

[0035] The pressure sensing component 4 is disposed in the installation cavity and includes a substrate 401, a pressure sensitive element 408, and a circuit board 404. The substrate 401 is pressed by the terminal 5 against the sealing component 3 on the side of the seat body 1, and a pressure hole communicating with the medium hole 107 is provided in the middle thereof. The substrate 401 can be made of a metal material or a ceramic material. Preferably, the substrate 401 is made of a ceramic material. A plurality of first circumferential positioning portions 402 can be provided on the periphery of the substrate 401, and a plurality of positioning posts 508 that are inserted and matched with the lower end of the thick portion 504 are provided. The pressure sensitive element 408 is fixed on the substrate 401, and its first pressure sensing surface seals one end of the pressure hole away from the pipe 101. The circuit board 404 is fixed on the surface of the substrate 401 away from the pipe 101, and a window for accommodating the substrate 401 is provided thereon, and it is electrically connected to the pressure sensitive element 408. Electronic components 412 such as conditioning chips are provided on the circuit board 404. A surrounding frame 413 can also be adhered to the upper surface of the circuit board 404. The surrounding frame 413 surrounds the periphery of the pressure sensitive element 408, and a protective gel covering the outside of the pressure sensitive element 408 is filled in the surrounding frame 413. Among them, the pressure sensitive element 408 is preferably a MEMS chip. In some other embodiments, it can also be other types of pressure sensitive elements such as a resistance strain gauge or a capacitive strain gauge.

[0036] Among them, the lower end of the pin 500 penetrates and is welded to the pin connection hole 407 of an upper reinforcing plate 409. An upper circuit board 406 is fixed on the surface of the upper reinforcing plate 409 facing the circuit board 404. The inner side of the end portion 503 can protrude downward to form a supporting portion 506 for supporting the upper reinforcing plate 409. A surrounding cavity 507 can be formed inside the supporting portion 506, and a sealing glue can be filled in the surrounding cavity 507. The lower end of the pin 500 is electrically connected to the circuit board 404 through the upper circuit board 406 and the connecting plate 405. The circuit board 404, the upper circuit board 406, and the connecting plate 405 can be flexible circuit boards. When the circuit board 404 is a flexible circuit board, it can be fixed on the upper end surface of the lower reinforcing plate 403, and the lower reinforcing plate 403 is fixed on the upper end surface of the substrate 401. In order to ground the metal cylinder shell 2 to reduce electromagnetic interference, a grounded conductive elastic sheet 411 is electrically connected to the circuit board 404, and the conductive elastic sheet 411 is pressed against the inner wall of the vertical portion 201.

[0037] To facilitate the connection with the pipe joint 7, the pressure sensor of this embodiment may further include two connection quick-insert components that are correspondingly provided on two connection pipe orifices. Among them, the pipe joint 7 includes an insertion pipe 701 whose longitudinal inner end is inserted into the connection pipe orifice in a mating manner. The longitudinal outer end of the insertion pipe 701 protrudes outward to form a pressing ring 702 whose outer diameter is larger than the inner diameter of the connection pipe. The axial outer end of the pressing ring insertion pipe 701 is further provided with a polygonal portion 703 that is convenient for rotary clamping, and an external thread connection portion 704 can be provided at the longitudinal outer end of the polygonal portion 703.

[0038] Please refer to Figures 5 to 6 . The quick-insert component of this embodiment includes an inner insertion tube 604, a second sealing ring 601, a second sealing ring 602, and a locking mechanism. Among them, the inner insertion tube 604 is fittingly inserted into the connecting pipe orifice. A part of the inner wall of the pipe 101 contracts radially outward to form a first stop surface 1011 that is longitudinally opposite to the inner insertion tube 604. The second sealing ring 601 and the second sealing ring 602 are sleeved inside the pipe 101 to longitudinally seal between the pipe 101 and the inserted connecting pipe 701, and are longitudinally restricted between the first stop surface 1011 and the inner end surface of the first sealing groove 104.

[0039] The locking mechanism can change between a locked state and an unlocked state. In the locked state, it can prevent the pressing ring 702 from moving out longitudinally outward. In the unlocked state, it can allow the pressing ring 702 to move out longitudinally outward. The locking mechanism should at least include a locking seat 607 and a locking component (not marked). The locking seat 607 is longitudinally penetrated outward by the inserted connecting pipe 701, and is provided with a receiving cavity 6070 thereon, and is fixed to the outer end of the inner insertion tube 604. In some other embodiments, the locking seat 607 can also be integrally fixed to the longitudinal outer end of the pipe 101. The inner insertion tube 604 is longitudinally anti-disengaged and inserted into the pipe 101. For example, it can be clamped to the pipe 101 or blocked by the pressing ring 702 on the longitudinal outer side. At least a part of the locking component (which will be specifically described below) is disposed in the receiving cavity 6070 and can move laterally. When this part is in the first limit position, it longitudinally blocks the pressing ring 702. When this part is in the second limit position, it longitudinally releases the pressing ring 702 (withdraws out of the outer movement path of the pressing ring 702).

[0040] Among them, the locking seat 607 can include an outer wall 6071 axially arranged longitudinally. The longitudinal inner end of the outer wall 6071 is fixed with an inner end portion 6072, and the longitudinal outer end of the outer wall 6071 is fixed with an outer end portion 6073. The outer wall 6071, the inner end portion 6072, and the outer end portion 6073 enclose the receiving cavity 6070 with the inserted connecting pipe 701. A side socket 6074 for allowing the above-mentioned part of the locking component to be inserted into the receiving cavity 6070 can be opened on the outer wall 6071. Through holes 6076 for allowing the pressing ring 702 to move longitudinally through are opened on the inner end portion 6072 and the outer end portion 6073.

[0041] In this embodiment, the locking assembly may include a first locking member 609 and a second locking member 608. The first locking member 609 is slidably disposed on the locking seat 607 in a transverse plane, and includes a first axial blocking piece 6090 and two side beams 6091 extending forward and backward and spaced apart from each other. An elastic piece 6092 that can be supported forward on the locking seat 607 is fixedly disposed on the front end of the side beam 6091. The rear end of the side beam 6091 extends out of the accommodating cavity 6070 and is fixedly connected to a first pressing portion 6098. The front and rear middle parts of the side beam 6091 are fixedly connected to one end of a flexible blocking piece 6094. The radially outer end 6095 of the flexible blocking piece 6094 extends in a longitudinally inwardly inclined manner relative to the radially inner end 6096 thereof to the longitudinal inward insertion path of the pressure ring 702.

[0042] The second locking member 608 is slidably arranged on the first locking member 609 in the transverse plane, and includes a second axial baffle 6080 and a second pressing portion 6082 fixedly located inside and outside the accommodating chambers 6070 and 8070, respectively. The other end of the flexible baffle 6094 is located on the front-to-back moving path of the second axial baffle 6080, and its main function is to block the forward movement of the second axial baffle 6080 in the front-to-back direction when not connected to the pipe joint 7; when connected to the pipe joint 7, the pressure ring 702 is inserted into the connecting pipe mouth in the longitudinal direction and the flexible baffle 6094 is pushed away, and at this time, the second locking member 608 can be pressed to prevent the second axial baffle 6080 and the first axial baffle 6090 from escaping outward in the longitudinal direction from the front and back sides, respectively. Therefore, when the plug-in tube 701 of the pipe connector 7 is inserted into the connecting pipe mouth, the pressing ring 702 pushes the flexible baffle 6094 to both sides, and the longitudinal inner end of the pressing ring 702 stops at the outer end of the inner tube 604, the flexible baffle 6094 should not detach from the pressing ring 702, that is, the flexible baffle 6094 should have a suitable longitudinal length after being squeezed by the pressing ring 702. At this time, the distance between the longitudinal inner end of the flexible baffle 6094 and the outer end of the inner tube 604 is preferably smaller than the longitudinal thickness of the pressing ring 702.

[0043] When the other end of the flexible flap 6094 is pushed away from the second axial flap 6080 by the pressing ring 702 towards the longitudinal inner side, the second locking member 608 can move forward from a rear limit position to a front limit position relative to the first locking member 609. When the second locking member 608 is in the front limit position relative to the first locking member 609, the second axial flap 6080 is located on the longitudinal outward withdrawal path of the pressing ring 702. When the first locking member 609 is in the rear limit position, the second axial flap 6080 is disengaged from the longitudinal outward withdrawal path of the pressing ring 702. In some other embodiments, the radially inner ends of the first axial flap 6090 and / or the second axial flap 6080 can extend obliquely towards the longitudinal inner side to improve the longitudinal stiffness of the first axial flap 6090 and / or the second axial flap 6080. To better adapt to the outer contour of the pressing ring 702, the projections of the first axial flap 6090 and / or the second axial flap 6080 on the transverse plane are crescent-shaped. On the left and right sides of the second pressing portion 6082, there can be respectively provided pulling portions 6081 suitable for being pinched by a human finger. For example, longitudinal extending corrugations can be provided on the left and right outer sides of the pulling portion 6081 to increase the friction when the finger pinches and also facilitate clamping with fingernails.

[0044] In some other embodiments, preferably, the locking and blocking assembly further includes a blocking structure for providing resistance when the second locking member 608 moves back and forth relative to the first locking member 609. Specifically, the blocking structure includes at least one arcuate strip 6084. The front and rear ends of at least one first connecting beam 6083 are fixedly connected to the second axial flap 6080 and the second pressing portion 6082 respectively. The middle part of the arcuate strip 6084 arches towards one side of the first connecting beam 6083 and forms a sliding portion limiting groove 6085 with the first connecting beam 6083. A sliding portion 6097 fixedly connected to the side beam 6091 extends longitudinally into the sliding portion limiting groove 6085, and the arched portion of the arcuate strip 6084 is located on the front and rear movement path of the sliding portion 6097.

[0045] The second axial flap 6080 and the second pressing portion 6082 are also fixedly connected by a second connecting beam 6086 extending in the front and rear direction. A second guiding groove 6088 is provided on the second connecting beam 6086. The first locking member 609 further includes a guiding block (not shown) fixedly connected to the side beam 6091, and the guiding block extends longitudinally into the second guiding groove 6088. Among them, preferably, a guiding portion 6093 that presses towards the left and right inner sides against the first connecting beam 6083 is provided at the rear end of the side beam 6091. A surrounding opening 6087 is formed among the second connecting beam 6086, the first connecting beam 6083, the second axial flap 6080 and the second pressing portion 6082, and the arcuate strip 6084 is arranged in the surrounding opening 6087.

[0046] Please refer to Figure 7 、 Figure 8 ,Figure 7 The structure of the quick-insert component of this embodiment when not installed on the connection pipe orifice is shown. Figure 8 The initial state when it is installed in the pipe 101 is shown. Compared with the quick-insert component after installation, for the quick-insert component when not installed, the second sealing ring 601 and the second sealing ring 602 are sleeved in a sleeve 603. The sleeve 603 is coaxially arranged with the inner insertion pipe 604, is located longitudinally inside the inner insertion pipe 604, and is integrally connected to one longitudinal inner end between the sleeve 603 and the inner insertion pipe 604 through a weak connection part 6031. An enlarged diameter part 605 is formed at one longitudinal outer end of the outer wall of the inner insertion pipe 604, and the inner wall of the pipe 101 contracts outward to form a second stop surface 1012 longitudinally opposite to the enlarged diameter part 605. A buckle 606 is arranged on the outer wall of the enlarged diameter part 605, and a first card hole 109 is correspondingly arranged on the connection pipe orifice. During installation, the quick-insert component is pushed longitudinally inward into the connection pipe orifice, and the sleeve 603 is blocked by the second stop surface 1012; under sufficient thrust, the weak connection part 6031 breaks; when continuing to push in, the sleeve 603 then disengages from the inner insertion pipe 604 longitudinally outward and is pushed and received in an annular accommodation cavity formed between the outer wall of the inner insertion pipe 604, the longitudinal inner end surface of the enlarged diameter part 605 and the inner wall of the connection pipe orifice. During this process, the buckle 606 is clamped in the first card hole 109 to prevent the quick-insert component from disengaging from the connection pipe orifice.

[0047] Among them, in order to make the pipe 101 have sufficient strength, its pipe wall cannot be too thin. When the pipe wall is relatively thick, it is difficult for the buckle 606 to deform such a large radial deformation amount during buckling. Therefore, a first guiding groove 108 extending longitudinally to a circumferential end of the first card hole 109 can be arranged on the longitudinal outer side of the first card hole 109. In this way, during clamping, the required radial deformation amount of the buckle 606 can deduct the depth of the first guiding groove 108, and at the same time, it can be avoided that the thickness of the pipe 101 corresponding to the longitudinal outer side of the buckle 606 is the same as the wall thickness of the pipe 101. However, since the thickness of the pipe 101 at the position of the first guiding groove 108 is reduced, there is room for further improvement.

[0048] Please refer to Figures 9 to 12 . In the second embodiment of the present application, the quick-insert component includes an inner insertion pipe 804, a second sealing ring 801, a second sealing ring 802, and a locking and blocking mechanism. Among them, the inner insertion pipe 804 is inserted into the connection pipe orifice in a matching manner. A part of the inner wall of the pipe 101 contracts outward in the radial direction to form a first stop surface 1011 longitudinally opposite to the inner insertion pipe 804. The second sealing ring 801 and the second sealing ring 802 are sleeved in the pipe 101 to longitudinally seal between the pipe 101 and the insertion pipe 701 and are longitudinally limited between the first stop surface 1011 and the inner end surface of the first sealing groove 104.

[0049] The locking and blocking mechanism can change between a locked state and an unlocked state. In the locked state, it can prevent the pressing ring 702 from moving outwards longitudinally, and in the unlocked state, it can allow the pressing ring 702 to move outwards longitudinally. The locking and blocking mechanism should at least include a locking seat 807 and a locking and blocking component (not marked). The locking seat 807 is longitudinally penetrated outwards by the inserted pipe 701, and is provided with a receiving cavity 8070 thereon. It is fixedly connected to the outer end of the pipe 101 or the tube 101, so that the longitudinal outer part of the pipe 101 has the same wall thickness, that is, it will not have the drawback that in the first embodiment, only part of the pipe 101 needs to be thinned in order to set the first guiding groove 108. In some other embodiments, preferably, the locking seat 807 can also be fixed to the longitudinal outer end of the inner inserted pipe 804. The inner inserted pipe 804 is longitudinally inserted into the pipe 101 in a manner that prevents it from coming off. At least a part of the locking and blocking component is arranged in the receiving cavity 8070 and can move laterally. When this part is in the first limiting position, it longitudinally blocks the pressing ring 702; when this part is in the second limiting position, it longitudinally releases the pressing ring 702 (withdraws from the outer movement path of the pressing ring 702). The locking and blocking component includes a third locking member 808 that is slidably arranged on the locking seat 607 in the transverse plane. The third locking member 808 includes two side beams 8083 that extend forward and face each other left and right. A side socket 8074 is formed between the two side beams 8083. The rear end of the third locking member 808 is fixedly connected to a second pressing portion 8082. A dividing structure (not marked) is provided on the locking seat 607 that can push the two side beams 8083 to move left and right when they move forward.

[0050] The dividing structure includes two dividing columns 8076. The dividing columns 8076 extend towards the left and right outer sides to the forward movement path of the side beams 8083. A smooth contact surface 8084 is provided at the connection between the front side wall and the left and right inner side walls of the side beams 8083. The rear side wall of the dividing column 8076 is correspondingly provided with an inclined surface or a smooth surface at the connection with the left and right outer side walls. The two side beams 8083 are deformed and opened under the action of the dividing columns 8076, so as to withdraw from the outer movement path of the pressing ring 702. In some other embodiments, the two dividing columns 8076 can also form a dividing column, which is correspondingly provided with two inclined surfaces or smooth surfaces on the left and right sides.

[0051] The locking seat 807 may include an inner end portion 8072 and an outer end portion 8073 fixed longitudinally outside the inner end portion 8072 at an interval. An accommodation cavity 8070 is defined between the inner end portion 8072 and the outer end portion 8073. Two guiding portions 8075 respectively approach the side beams 8083 on the left and right corresponding sides from the left and right sides. Anti-disengagement portions 8081 are formed by protruding outwardly from the left and right outer side walls of the side beam 8083, and the anti-disengagement portions 8081 are located on the front side of the guiding portions 8075 on the left and right corresponding sides. The longitudinal two ends of the guiding portion 8075 can be fixedly connected to the inner end portion 8072 and the outer end portion 8073 in a one-to-one correspondence. Preferably, the front ends of both the inner end portion 8072 and the outer end portion 8073 are fixedly connected through a connecting portion 8071, and the longitudinal two ends of the dialing column 8076 are fixedly connected to the inner end portion 8072 and the outer end portion 8073 in a one-to-one correspondence.

[0052] Wherein, a guiding rib 8086 extending in the front and rear directions may be further fixed to one side of the side beam 8083 facing the inner end portion 8072 or the outer end portion 8073, and a guiding rib accommodation groove for accommodating the guiding rib 8086 is correspondingly formed on the inner end portion 8072 or the outer end portion 8073. A third stop surface 8085 facing the insertion pipe 701 may be provided on the front side of the middle portion of the second pressing portion 8082 to define the above-mentioned second limiting position.

[0053] The scope of the present disclosure is not limited by the detailed description, but is defined by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are construed as being included in the present disclosure.

Claims

1. A quick-insert component for connecting a pipe joint (7) and a connecting pipe orifice of a pipe (101). The pipe joint (7) includes an insertion pipe (701) whose longitudinally inner end is fitted and inserted into the connecting pipe orifice. The longitudinally outer end of the insertion pipe (701) protrudes outward to form a compression ring (702) with an outer diameter larger than the inner diameter of the connecting pipe. Characterized in that, it includes: An inner insertion pipe (604) fitted and inserted into the connecting pipe orifice. A part of the inner wall of the pipe (101) contracts radially outward to form a first stop surface (1011) longitudinally opposite to the inner insertion pipe (604); At least one second sealing ring (601, 602) sleeved in the pipe (101) to provide longitudinal sealing between the pipe (101) and the insertion pipe (701), which is located between the first stop surface (1011) and the inner insertion pipe (604); And a locking and blocking mechanism that can prevent the compression ring (702) from slipping out longitudinally outward in the locked state and can allow the compression ring (702) to slip out longitudinally outward in the unlocked state; The locking and blocking mechanism includes: A locking seat (607, 807) penetrated longitudinally outward by the insertion pipe (701), which is provided with a receiving cavity (6070, 8070), and is connected to the outer end of the inner insertion pipe (604, 804) or the pipe (101). The inner insertion pipe (604, 804) is longitudinally inserted into the pipe (101) in a non-detachable manner; And at least a part of a locking and blocking component disposed in the receiving cavity (6070, 8070) and capable of lateral movement. When this part is in the first limit position, it longitudinally blocks the compression ring (702); When this part is in the second limit position, it longitudinally releases the compression ring (702); The locking and blocking component includes a third locking member (808) slidably disposed on the locking seat (607) in the transverse plane. The third locking member (808) includes two side beams (8083) extending forward and facing each other left and right. The locking seat (607) is provided with a separating structure that can separate the two side beams (8083) to the left and right when they move forward. The longitudinally outer end of the outer wall of the inner insertion pipe (604) forms an enlarged diameter portion (605).

2. The quick-insert component according to claim 1, Characterized in that, The rear end of the third locking member (808) is connected to a second pressing portion (8082) in a fixed connection.

3. The quick-insert component according to claim 2, Characterized in that, The separating structure includes two separating columns (8076). The separating columns (8076) extend outward to the left and right to the forward movement path of the side beams (8083). A smooth contact surface (8084) is provided at the connection of the front side wall and the left and right inner side walls of the side beams (8083). The rear side wall of the separating columns (8076) is correspondingly provided with an inclined surface or a smooth surface at the connection of the left and right outer side walls.

4. The quick-insert component according to claim 3, Characterized in that, The locking seat (807) includes an inner end portion (8072) and an outer end portion (8073) that is spaced apart and fixed to the longitudinal outer side of the inner end portion (8072). The accommodation cavity (8070) is defined between the inner end portion (8072) and the outer end portion (8073); two guiding portions (8075) respectively approach the side beams (8083) on the left and right corresponding sides from the left and right sides. Anti-detachment portions (8081) are formed by the outward protrusion of the left and right outer side walls of the side beams (8083), and the anti-detachment portions (8081) are located on the front side of the guiding portions (8075) on the left and right corresponding sides; the longitudinal two ends of the guiding portions (8075) are correspondingly fixed to the inner end portion (8072) and the outer end portion (8073).

5. The quick-insertion assembly according to claim 4, wherein, the front ends of the inner end portion (8072) and the outer end portion (8073) are fixedly connected by a connecting portion (8071), and the longitudinal two ends of the dividing column (8076) are correspondingly fixed to the inner end portion (8072) and the outer end portion (8073).

6. The quick-insertion assembly according to claim 5, wherein, a guiding rib (8086) extending in the front and rear direction is fixed to one side of the side beam (8083) facing the inner end portion (8072) or the outer end portion (8073), and a guiding rib accommodation groove for accommodating the guiding rib (8086) is correspondingly formed on the inner end portion (8072) or the outer end portion (8073).

7. The quick-insertion assembly according to claim 6, wherein, a third stop surface (8085) facing the insertion pipe (701) is provided on the front side of the middle portion of the second pressing portion (8082).

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