A connection structure

Abstract

The utility model discloses a connecting structure which comprises a first joint and a second joint which cooperate with each other, the first joint is provided with a first clamping groove, the second joint comprises a main body and a sleeving piece, the main body is provided with a first connecting part along the circumference, the first connecting part extends along the axial direction and can be deformed along the radial direction under stress, the first connecting part is provided with a clamping part and a first protruding part located on both sides of the circumference, the sleeving piece is sleeved on the main body, and the inner side wall of the sleeving piece is provided with a second protruding part along the circumference, one of the sleeving piece and the clamping part is provided with a clamping protrusion, and the other is provided with a second clamping groove, the first joint is inserted into the main body along the axial direction to assemble with the second joint, in the assembled state, the clamping part cooperates with the first clamping groove, and the clamping protrusion cooperates with the second clamping groove, when disassembling, the second protruding part cooperates with the first protruding part by sliding the sleeving piece to force the clamping part to separate from the first clamping groove, the sleeving piece can drive the clamping part to separate from the first clamping groove in time, the two joints are disassembled, which is quick and convenient and the structure is simpler.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, and specifically to a connection structure. Background Technology

[0002] In the existing technology, quick-connect pipe couplings are widely used in various fields of production and daily life. One existing quick-connect pipe coupling includes a female and a male. The female includes a body, a C-ring, a sleeve, and a stop. During installation, the male can be inserted into the assembled female for a snap-fit ​​engagement. During disassembly, the male is first pushed to the marked position, and then the sleeve is moved to move the C-ring until the C-ring's claws abut against the body, thus allowing the male to be removed from the female. The female structure of this solution is relatively complex, resulting in cumbersome assembly. Furthermore, disassembly requires operating both the male and female couplings. The female coupling moves the C-ring through the sleeve to make the claws abut against the body and open, making disassembly inconvenient and time-consuming. Utility Model Content

[0003] The purpose of this invention is to provide a connection structure that is quicker to disassemble and simpler in structure compared to existing technologies.

[0004] To achieve the above objectives, the present invention and its related embodiments adopt the following technical solutions, but are not limited to the following solutions:

[0005] The first technical solution relates to a connection structure, including a first connector and a second connector that cooperate with each other. The first connector has a first slot. The second connector includes a body and a sleeve. The body includes a first connecting portion arranged circumferentially, the first connecting portion extending axially and adapted to deform radially under force. The first connecting portion has a snap-fit ​​portion, and the first connecting portion has first protrusions on both sides circumferentially. The sleeve is used to fit the body, and the inner sidewall of the sleeve has a second protrusion circumferentially. One of the inner sidewall of the sleeve and the outer sidewall of the snap-fit ​​portion has a snap protrusion, and the other has a second slot. The first connector is inserted into the body axially to assemble with the second connector. In the assembled state, the snap-fit ​​portion engages with the first slot, and the snap protrusion engages with the second slot. When disassembling, the second protrusion engages with the first protrusion by sliding the sleeve, thereby forcing the snap-fit ​​portion to disengage from the first slot.

[0006] The second technical solution is based on the first technical solution, wherein the main body further includes a second connecting part, the second connecting part being connected to the first connecting part in the axial direction; the second connecting part is provided with a plug-in groove for plugging and engaging with the first connector, and the first connector is plugged and engaged with the plug-in groove after passing through the first connecting part.

[0007] The third technical solution is based on the first technical solution, wherein there are two first connecting parts, and the two first connecting parts are arranged symmetrically with respect to the axis of the main body.

[0008] The fourth technical solution is based on the third technical solution, wherein there are two second protrusions, each of which corresponds to two first protrusions, and the two first protrusions are located on the same side of the two first connecting portions.

[0009] The fifth technical solution is based on the first technical solution, wherein the second protrusion and the first protrusion are adapted to abut against each other to restrict the axial movement of the sleeve relative to the body.

[0010] The sixth technical solution is based on the first technical solution, wherein the second protrusion is adapted to cooperate with the inclined surface of the first protrusion.

[0011] The seventh technical solution is based on the sixth technical solution, wherein the second protrusion has an arc-shaped surface, the first protrusion is provided with a first inclined surface, and the arc-shaped surface is adapted to cooperate with the first inclined surface.

[0012] The eighth technical solution is based on the second technical solution, wherein it is suitable for connecting pipes, and the outer wall of the first joint is provided with an annular groove, the annular groove being suitable for a sealing element to be fitted so that the first joint is sealed and inserted into the insertion groove.

[0013] The ninth technical solution is based on the second technical solution, wherein the first connector has a gap with the bottom of the insertion groove.

[0014] The tenth technical solution is based on the first technical solution, wherein at least one of the sidewalls of the card protrusion and the second card slot is provided with a guide surface.

[0015] Compared with existing technologies, the above technical solution has the following beneficial effects:

[0016] In the first technical solution, the connecting structure includes a first connector and a second connector that cooperate with each other. The first connector has a first slot. The second connector includes a main body and a sleeve. The main body includes a first connecting part arranged circumferentially, which extends axially and is adapted to deform radially under force. The first connecting part has a snap-fit ​​part, and the first connecting part has first protrusions on both sides circumferentially. The sleeve is used to fit the main body, and the inner sidewall of the sleeve has a second protrusion circumferentially. One of the inner sidewall of the sleeve and the outer sidewall of the snap-fit ​​part has a snap protrusion, and the other has a second slot. The first connector is inserted into the main body axially and assembled with the second connector. In the assembled state, the snap-fit ​​part is engaged with the first slot, and the snap protrusion is engaged with the second slot. When disassembling, the snap protrusion engages with the second slot by sliding the sleeve. The first and second connectors are disengaged by sliding the sleeve in the opposite direction of insertion until the snap-fit ​​part disengages from the first slot. When assembling the first and second connectors, the first connector is inserted axially into the main body, causing the snap-fit ​​part to engage with the first slot. Then, the sleeve is slid against the insertion direction of the first connector until the snap-fit ​​protrusion engages with the second slot. When disassembling the first and second connectors, the sleeve is slid in the opposite direction to disengage the snap-fit ​​protrusion from the second slot. The second protrusion applies force to the first protrusion, causing it to deform radially, thus opening the snap-fit ​​part and disengaging it from the first slot. The first connector can then be removed from the main body, completing the disassembly. Compared to existing technologies, the sliding sleeve action instantly disengages the snap-fit ​​part from the first slot, allowing the first connector to be disassembled from the second connector, which is quick, convenient, and has a simpler structure.

[0017] In the second technical solution, the first connector passes through the first connecting part and is inserted into the insertion slot, and the snap-fit ​​part is engaged with the first snap-fit ​​slot, so that the first connector is held tightly in the main body, thus making the assembly with the second connector more stable and allowing it to rotate relative to the second connector. This makes the operation more flexible when assembling between the two connectors or connecting the connector to the object being connected.

[0018] In the third technical solution, the two first connecting parts are arranged symmetrically so that when the first connector is inserted into the main body or the socket moves relative to the main body, the radial forces between the first connector or socket and the main body are more balanced, and it is not easy to be eccentric or jammed.

[0019] In the fourth technical solution, each second protrusion corresponds to two first protrusions, making the structure of the socket more concise.

[0020] In the fifth technical solution, the second protrusion is adapted to abut against the first protrusion to restrict the axial movement of the socket relative to the main body, thus preventing the socket from detaching from the main body when the first connector and the second connector are disassembled by moving the socket.

[0021] In the sixth technical solution, the inclined surface of the second protrusion and the first protrusion cooperate to reduce the resistance of the second protrusion to move relative to the first protrusion, and it is easier to move the sleeve to disassemble the first connector. The smaller the angle between the inclined surface and the axial direction, the more effort is required.

[0022] In the seventh technical solution, the arc-shaped surface cooperates with the first inclined surface, resulting in less resistance, making it easier for the socket to slide relative to the main body, and making disassembly easier.

[0023] In the eighth technical solution, the first joint is provided with an annular groove to facilitate the installation of the sealing element, thereby sealing the insertion into the insertion groove and ensuring the sealing of the connected pipes when connecting them.

[0024] In the ninth technical solution, the gap allows the first connector to rotate 360 ​​degrees relative to the second connector in the insertion slot, which can improve the convenience during assembly and use.

[0025] In the tenth technical solution, at least one of the side walls of the protrusion and the second slot is provided with a guide surface, which facilitates the protrusion to enter and exit the second slot and facilitates the assembly of the main body and the socket. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view of the connection structure in the embodiment;

[0028] Figure 2 This is a longitudinal sectional view of the connection structure in the embodiment;

[0029] Figure 3 This is a front view of the first connector in the embodiment;

[0030] Figure 4 This is a first-view perspective stereoscopic view of the main body in the embodiment;

[0031] Figure 5 This is a second-view perspective perspective view of the main body in the embodiment;

[0032] Figure 6 for Figure 5 Enlarged view of Part I;

[0033] Figure 7 This is a perspective view of the socket in the embodiment;

[0034] Figure 8 This is a longitudinal sectional view of the socket in the embodiment;

[0035] Figure 9 for Figure 8 Enlarged view of Part II;

[0036] Figure 10 This is a schematic diagram of the first state of assembly of the connection structure in the embodiment;

[0037] Figure 11 This is a schematic diagram of the second state of assembly of the connection structure in the embodiment;

[0038] Figure 12 This is a schematic diagram of the third state of assembly of the connection structure in the embodiment.

[0039] Explanation of key figure labels:

[0040] First connector 1, first slot 11, annular groove 12; second connector 2, body 21, snap-fit ​​part 211, second slot 2111, first protrusion 2112, second protrusion 2113, extension part 212, first protrusion 2121, connecting cavity 213, base 214, insertion groove 2141; socket 22, snap-fit ​​protrusion 221, first guide surface 2211, second protrusion 222, first cavity opening 223, second cavity opening 224. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0042] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0043] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of the invention.

[0044] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0045] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0046] Example

[0047] See Figure 1-2 As shown in the figure, a connection structure of this embodiment includes a first connector 1 and a second connector 2; the first connector 1 is equipped with a sealing element; the second connector 2 includes a main body 21 and a sleeve 22, the sleeve 22 being used to sleeve the main body 21; the first connector 1 is axially sealed and inserted into the main body 21 to assemble with the second connector 2.

[0048] See Figure 3 As shown in the figure, in this embodiment, the first connector 1 is a hollow tube structure, and the outer wall of one end forms a first connecting nozzle with a wavy structure. The first connecting nozzle is suitable for connecting with a first object. In this embodiment, the first object is a pipe. In other embodiments, the first object can be other objects to be connected. The outer wall of the other end of the first connector 1 is provided with an annular groove 12. The annular groove 12 is used to install a sealing element for sealing and insertion with the main body 21. In this embodiment, the sealing element is an O-ring. The outer wall of the first connector 1 is also provided with a first slot 11 along the circumferential direction. The first slot 11 is located between the annular groove 12 and the first connecting nozzle.

[0049] See Figure 2 Figure 4-6 shows that the main body 21 includes an integrally formed first connecting part and a second connecting part; the first connecting part and the second connecting part are connected axially, and the first connecting part is circumferentially arranged along the end face of the second connecting part; the second connecting part is a hollow tube structure, which includes an integrally formed base 214 and a second connecting nozzle, the outer wall of the second connecting nozzle is a wavy structure, suitable for connecting with a second object. In this embodiment, the second object is a pipe, and in other embodiments, the second object can be other objects to be connected; the base 214 is provided with a plug groove 2141, the plug groove 2141 communicates with the second connecting nozzle, the opening of the plug groove 2141 faces the first connecting part, and the plug groove 2141 is suitable for sealing the first connector 1.

[0050] The first connecting portion extends axially and is adapted to deform radially under stress. Specifically, the first connecting portion includes a snap-fit ​​portion 211 and two extension portions 212. The two extension portions 212 are circumferentially disposed on the end face of the insertion groove 2141 and extend axially away from the second connecting nozzle. The cross-section of the snap-fit ​​portion 211 is arc-shaped, and its two circumferential sides are respectively connected to the ends of the two extension portions 212, forming a space between the two extension portions 212 and the end face of the insertion groove 2141. The first connecting part forms a cantilever structure, allowing it to deform radially under stress; the snap-fit ​​part 211 is adapted to snap-fit ​​with the first snap-fit ​​groove 11, so that the first connector 1 and the second connector 2 are fixed relative to each other axially and radially; the outer wall of the snap-fit ​​part 211 is provided with a first protrusion 2112 and a second protrusion 2113 distributed axially, and a second snap-fit ​​groove 2111 is formed between the first protrusion 2112 and the second protrusion 2113, and the surfaces of the first protrusion 2112 and the second protrusion 2113 facing each other axially respectively form... The two side walls of the second slot 2111 are respectively the first slot wall and the second slot wall; in this embodiment, the surface of the second protrusion 2113 is arc-shaped and is closer to the extension 212 along the axial direction, so that the second slot wall constitutes the second guide surface; the first connecting part is provided with the first protrusion 2121 on both sides along the circumferential direction. Specifically, in this embodiment, the first protrusion 2121 is symmetrically arranged on both sides of the extension 212 along the circumferential direction. In this embodiment, the first protrusion 2121 is provided with the first inclined surface, which extends tangentially towards the base 214 relative to the axial direction; in this embodiment, there are two first connecting parts, which are arranged circumferentially on the end face of the slot opening of the insertion groove 2141. The two first connecting parts are axially symmetrical with respect to the axis of the main body 21 and form a connecting cavity 213. The first connector 1 passes through the connecting cavity 213 to seal and insert into the insertion groove 2141. In this embodiment, there is a gap between the first connector 1 and the bottom of the insertion groove 2141 so that the first connector 1 can rotate freely 360 degrees relative to the second connector 2.

[0051] See Figure 2As shown in Figures 7-9, the sleeve 22 is a hollow cylinder with a first cavity 223 and a second cavity 224 at its two ends along the axial direction. A second protrusion 222 and a locking protrusion 221 are distributed circumferentially on the inner wall of the sleeve 22 near the first cavity 223. The locking protrusion 221 is adapted to engage with the second locking groove 2111, so that the sleeve 22 and the main body 21 are relatively fixed axially and radially. In this embodiment, the locking protrusion 221 has a first guide surface 2211, which is arc-shaped. The first guide surface 2211 engages with the second guide surface, facilitating the entry and exit of the locking protrusion 221 into and out of the second locking groove 2111. In other embodiments, either the locking protrusion 221 or the second groove wall needs to have a guide surface. In other embodiments, the locking protrusion 221 can be located on the outer wall of the engaging portion 211, and the second locking groove 2111 is correspondingly located on the inner wall of the sleeve 22. The second protrusion 222 is adapted to abut against the first protrusion 2121, so that when the sleeve 22 moves axially relative to the body 21, the second protrusion 222 applies force to the first protrusion 2121 to deform radially, thereby causing the locking portion 211 to open and disengage from the first slot 11, so that the first connector 1 can be withdrawn from the insertion slot 2141 and disassembled from the second connector 2; and after the locking portion 211 disengages from the first slot 11, the first protrusion 2121 no longer deforms and opens, which can limit the sleeve 22 from continuing to move and disengage from the body 21; in this embodiment, the second protrusion 222 cooperates with the first inclined surface, so that the second protrusion 222 relative to the first protrusion The resistance to movement of 2121 is small, making it easier to disassemble the first connector 1 by moving the socket 22. The smaller the angle between the inclined surface and the axial direction, the less effort is required. In this embodiment, there are two second protrusions 222 and two locking protrusions 221, which are arranged circumferentially. Each second protrusion 222 corresponds to two first protrusions 2121 located on the same side of different extensions 212. In this embodiment, the second protrusion 222 is U-shaped. The arc surface formed at the lower end of the U-shape cooperates with the first inclined surface on the corresponding side circumferentially, which can make the resistance to movement of the second protrusion 222 relative to the first protrusion 2121 smaller, making it easier for the socket 22 to slide relative to the main body 21, and making disassembly more effortless.

[0052] See Figure 10-12When assembling the first connector 1 and the second connector 2, first, align the second cavity 224 of the sleeve 22 with one end of the snap-fit ​​part 211 and insert the sleeve 22 into the main body 21. Then, insert the end of the first connector 1 with the sealing element through the connecting cavity 213 axially into the insertion groove 2141, so that the snap-fit ​​part 211 snaps into the first groove 11. Then, push the sleeve 22 in the opposite direction to the insertion direction of the first connector 1 so that the snap-fit ​​protrusion 221 snaps into the second groove 2111, thus completing the assembly. When disassembling the first connector 1 and the second connector 2, pull the sleeve 22 in the insertion direction of the first connector 1 so that the snap-fit ​​protrusion 221 disengages from the second groove 2111. When the sleeve 22 moves, the second protrusion 222 applies force to the first protrusion 2121 so that it deforms radially, causing the snap-fit ​​part 211 to disengage radially from the first groove 11. At this time, the first connector 1 can be pulled out from the insertion groove 2141, thus completing the disassembly.

[0053] Compared with the prior art, this embodiment has the following beneficial effects:

[0054] In this embodiment, the connection structure includes a first connector 1 and a second connector 2. The first connector 1 is provided with a first slot 11. The second connector 2 includes a main body 21 and a sleeve 22. The main body 21 includes a first connecting portion and a second connecting portion. The first connecting portion is arranged circumferentially along the second connecting portion, extends axially, and is adapted to deform radially under force. The first connecting portion includes an extension 212 and a locking portion 211. The extension 212 is provided with first protrusions 2121 on both sides circumferentially, and the outer side wall of the locking portion 211 is provided with a second slot 212. 111; The socket 22 is fitted onto the main body 21. The inner sidewall of the socket 22 has a second protrusion 222 along the circumferential direction and a locking protrusion 221. The first connector 1 is axially and sealed into the insertion groove 2141 of the main body 21 to assemble with the second connector 2. In the assembled state, the locking part 211 engages with the first locking groove 11, and the locking protrusion 221 engages with the second locking groove 2111. By sliding the socket 22, the locking protrusion 221 disengages from the second locking groove 2111, so that the second protrusion 222 engages with the first locking groove 2111. The protrusion 2121 engages, forcing the snap-fit ​​portion 211 to disengage from the first slot 11, thus completing the disassembly and assembly of the first connector 1 and the second connector 2. Therefore, when assembling the first connector 1 and the second connector 2, the first connector 1 is inserted axially into the body 21, so that the snap-fit ​​portion 211 engages with the first slot 11. Then, the sleeve 22 is slid against the insertion direction of the first connector 1 to move relative to the body 21, so that the snap-fit ​​protrusion 221 engages with the second slot 2111. When disassembling the first connector 1 and the second connector 2, the sleeve 22 is slid in the opposite direction. The sleeve 22 causes the locking protrusion 221 to disengage from the second locking groove 2111. The second protrusion 222 applies force to the first protrusion 2121, causing it to deform radially, thereby opening the locking part 211 and disengaging it from the first locking groove 11. The first connector 1 can then be withdrawn from the insertion groove 2141, thus completing the disassembly. Compared with the prior art, the sliding sleeve 22 can instantly drive the locking part 211 to disengage from the first locking groove 11, thereby allowing the first connector 1 to be disassembled from the second connector 2. This is quick, convenient, and has a simpler structure.

[0055] In this embodiment, the first connector 1 is inserted into the connecting cavity 213 and the insertion groove 2141, and the snap-fit ​​part 211 is engaged with the first snap-fit ​​groove 11, so that the first connector 1 is held tightly in the main body 21, thus making the assembly with the second connector 2 more stable and allowing it to rotate relative to the second connector 2. This makes the operation more flexible when assembling between the two connectors or connecting the connector to the object being connected.

[0056] In this embodiment, the first connector 1 is provided with an annular groove 12 to install a sealing element and thus seal the insertion into the insertion groove 2141, which can ensure the sealing of the connected pipe when connecting the pipe; in addition, when the first connector 1 is sealed and inserted into the insertion groove 2141, there is a gap between it and the bottom of the insertion groove 2141, which facilitates the first connector 1 to rotate freely 360 degrees relative to the second connector 2 in the insertion groove 2141, which can improve the convenience of operation during assembly and use.

[0057] In this embodiment, the two first connecting parts are arranged symmetrically so that when the first connector 1 is inserted into the insertion slot 2141 or the socket 22 moves relative to the main body 21, the radial forces between the first connector 1 or the socket 22 and the main body 21 are more balanced, and it is not easy to be eccentric or jammed.

[0058] In this embodiment, the second protrusion 222 and the first protrusion 2121 are adapted to abut against each other to restrict the movement of the sleeve 22 relative to the main body 21 along the axial direction. This can prevent the sleeve 22 from detaching from the main body 21 when the first connector 1 and the second connector 2 are disassembled by moving the sleeve 22.

[0059] In this embodiment, each second protrusion 222 corresponds to two first protrusions 2121, making the structure of the socket 22 simpler.

[0060] In this embodiment, the arc-shaped surface of the second protrusion 222 and the first inclined surface of the first protrusion 2121 cooperate to make the resistance of the second protrusion 222 relative to the first protrusion 2121 relatively small, and it is easier to move the sleeve 22 to disassemble the first connector 1.

[0061] In this embodiment, the protrusion 221 and the second slot 2111 are respectively provided with an arc-shaped first guide surface 2211 and a second guide surface, which facilitates the protrusion 221 to enter and exit the second slot 2111 and facilitates the assembly of the main body 21 and the sleeve 22.

[0062] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

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