Female joint butt joint structure

Abstract

The invention provides a female joint butt joint structure. The female joint butt joint structure is provided with a body, a buckle module, a sleeving spring and a pull sleeve. A through insertion channel is arranged in the body, the body is provided with a butt joint section, the butt joint section is provided with a string groove, and a through hole communicated with the insertion channel is arranged in the string groove. The buckle module is arranged on the butt joint section in a surrounding mode, at least part of the buckle module is buckled with the string groove, and a bolt body is arranged at the buckling position in a pivoted mode. The bolt body extends into the insertion channel through the through hole to form an actuating part, and is limited by the sleeve spring and the inner walls of the through holes. The two ends of the sleeving spring abut against the buckle module and an annular positioning groove of the butt joint section respectively. The pull sleeve is arranged on the outer periphery of the buckle module and supported by the front end of the buckle module in an abutting mode. And the bolt body swings by pulling the pull sleeve so as to lock or unlock the male joint inserted into the insertion channel. Therefore, by means of the structural design, the female connector can have a short operation stroke so that locking and unlocking of connector butt joint can be facilitated.

Description

Technical Field

[0001] The invention relates to a joint structure, in particular to a female joint butt joint structure. Background Art

[0002] Quick connectors are often used in fluid transportation. The existing quick connectors usually consist of a male connector and a female connector to achieve the effect of quick connection or quick release. However, due to the small space in existing cabinets (for example, data centers), the space for the male and female connectors to operate the docking and unlocking stroke is very limited, making it difficult to operate the traditional male and female connectors.

[0003] For example, conventional male and female connectors may utilize a steel ball locking method to maintain the axial position between the male and female connectors. Figure 1 As shown, in order to make the male and female connectors more stably docked, the conventional female connector structure will have at least one row of steel balls 91 disposed at the front end opening of its tube body 90, or multiple rows of steel balls 91 disposed in a symmetrical or staggered manner, for the male connector (not shown) to be inserted for docking. However, because the male and female connectors need to be provided with slots in the axial direction to respectively cooperate with the steel balls 91 to complete docking, although docking can be achieved, this conventional docking structure has the problems of large size, long docking and unlocking stroke length, and unstable docking locking.

[0004] Therefore, how to solve the above-mentioned problem of inconvenience and difficulty in operation caused by the long docking stroke of traditional male and female connectors in the existing narrow space environment (such as the cabinets and chassis of the data center), as well as the various defects derived from it, is the direction of improvement that the inventor of this case and related practitioners engaged in this industry are eager to study. Summary of the invention

[0005] Therefore, in order to effectively solve the above-mentioned problems, the purpose of the present invention is to provide a female connector docking structure that can reduce the docking and unlocking strokes of the male and female connectors.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a female joint docking structure, characterized in that it has:

[0007] A body, with a through insertion passage inside, a docking section at one end of the body, opposite string grooves are arranged on the outer periphery of the docking section, and each of the opposite string grooves has a through hole connected to the insertion passage;

[0008] A buckle module is disposed around the docking section, the buckle module at least partially buckles the relative string groove, and the buckle module is pivotally provided with at least one bolt body having an actuating portion at the buckle position of the relative string groove, and the actuating portion enters the insertion channel through the through hole;

[0009] A sleeve spring is sleeved on the docking section, and its two ends respectively support one side of the buckle module and an annular positioning groove formed along the circumference of the docking section; and

[0010] A pull sleeve is arranged on the sleeve spring and the outer periphery of the buckle module, and the other side of the buckle module supports the pull sleeve.

[0011] The female connector docking structure, wherein: the snap module has two fixing frames and two spring push plates, the fixing frames are C-shaped and elastic, the overall structure is arranged in the middle section of the C-shaped arc to form a cross-section in the shape of a straight strip, the two fixing frames are arranged on the docking section by upper and lower snap-fitting to form an annular body, so that the cross-section can be snapped into the relative chord groove, so that the snap module is axially limited by the body, the two spring push plates are snap-fitted to the docking section by left and right fitting, and the two spring push plates are arranged on the back sides of the two fixing frames.

[0012] The female joint docking structure, wherein: each of the two spring push plates has two corresponding transverse tenons; each spring push plate is in an upright C-shape, and the two transverse tenons of each spring push plate are respectively arranged at the two ends of the C-shape and correspond to each other up and down; the two transverse tenons of the spring push plate protrude toward the front end of the body, so that the cross-sections of the two corresponding fixing frames up and down are clamped between the vertical spacing of the two transverse tenons, and the two spring push plates respectively limit the two fixing frames to be located between the two transverse tenons up and down, and provide balanced limiting force on the left and right sides.

[0013] The female joint docking structure, wherein: a recessed portion is respectively formed at the outer edge of the cross-section where the two fixing frames are limited by the two spring push plates.

[0014] The female connector docking structure, wherein: the two fixing frames are also provided with a socket and a plug suitable for concave-convex matching at the upper and lower docking positions, so that the two fixing frames with the same configuration are connected to each other in a concave-convex manner with the socket and the plug.

[0015] The female joint docking structure is characterized in that: two pivot grooves are arranged on the front side of each fixing frame, and the two pivot grooves are recessed along the same side of the two ends of the cross-section for the shaft portion of the bolt body to be pivoted; the two fixing frames are respectively recessed with a notch towards the center for accommodating the bolt body.

[0016] The female joint docking structure, wherein: the cross-section protrudes toward the through hole to form a stopper, so that the shaft is located in the two pivot grooves and is supported by the stopper to form a limited state.

[0017] The female connector docking structure, wherein: the front end of the actuating portion forms a top end surface with an arc surface, the top end surface extends to both sides to form a front top abutment surface and a rear top abutment surface, and a front side wall is formed between the front top abutment surface and the shaft portion.

[0018] The female joint docking structure, wherein: the front end of the pull sleeve is circumferentially contracted to form a linkage portion for supporting the front ends of the two fixing frames.

[0019] Thus, a female connector docking structure of the present invention can lock or unlock the male connector inserted into the plug channel by pulling the pull sleeve to swing the bolt body. Thus, the structural design of the present invention can make the female connector have a shorter operating stroke to facilitate the locking and unlocking of the connector docking. At the same time, the axial limit of the docking is more stable; moreover, the overall structural size has the characteristic of being shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional schematic diagram of a conventional steel ball clamp quick connector structure;

[0021] Figure 2 It is a partial three-dimensional cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention;

[0022] Figure 3 It is a three-dimensional exploded schematic diagram of the female connector docking structure of the present invention;

[0023] Figure 4A It is a partial exploded schematic diagram of the female connector docking structure of the present invention;

[0024] Figure 4B It is a partial three-dimensional assembly schematic diagram of the female joint docking structure of the present invention;

[0025] Figure 5 It is a cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention.

[0026] Figure 6 It is a partial cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention;

[0027] Figure 7 It is a partial cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention;

[0028] Figure 8 It is a partial cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention;

[0029] Fig. 9 It is a partial cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention.

[0030] Explanation of the reference numerals in the accompanying drawings: male connector 1; plug-in section 11; slot 12; body 2; plug-in channel 20; docking section 21; chord groove 210; through hole 210a; annular positioning groove 210b; sleeve spring 3; snap module 4; bolt body 41; shaft 411; actuating portion 412; top end surface 412a; front side wall 413a; front top abutment surface 413b; rear side wall 414a; rear top abutment surface 414b; fixing frame 42; pivot slot 42a; blocking portion 42b; notch 42c; cross-section 421; recessed portion 421a; insertion hole 422; insertion column 423; spring push plate 43; transverse tenon 43a; pull sleeve 5; linkage portion 51; limiting ring 52. DETAILED DESCRIPTION

[0031] The above-mentioned objects and the structural and functional characteristics of the present invention will be described based on the preferred embodiments shown in the accompanying drawings.

[0032] Please refer to the attached drawings of the present invention. Figure 2 It is a partial three-dimensional cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention; Figure 3 It is a three-dimensional exploded schematic diagram of the female connector docking structure of the present invention; Figure 4A It is a partial exploded schematic diagram of the female connector docking structure of the present invention; Figure 4B It is a partial three-dimensional assembly schematic diagram of the female joint docking structure of the present invention; Figure 5 is a cross-sectional schematic diagram of the female joint butt joint structure and the male joint of the present invention; and, Figures 6 to 9 It is a partial cross-sectional schematic diagram of the cooperation between the female joint butt joint structure and the male joint of the present invention.

[0033] As the present invention Figures 2 to 3 As shown, the present invention provides a female connector docking structure (that is, it can also be used as a female connector) for cooperating with a male connector 1 (the male connector 1 can have an insertion section 11, and a groove 12 is recessed on the outer periphery of the insertion section 11, such as an annular groove), which has at least a main body 2, a sleeve spring 3, a snap module 4 and a pull sleeve 5.

[0034] The main body 2 is provided with a through insertion passage 20, so that the male connector 1 can be inserted into the female connector from the front end of the docking structure with the corresponding insertion section 11. Figure 3 As shown, the body 2 has a docking section 21 adjacent to the front end. Further, at least two opposite sides of the outer periphery of the docking section 21 are respectively provided with corresponding chord grooves 210 corresponding to the clamping groove 12 of the male connector 1. The chord grooves 210 can be formed by cutting, and are formed by chord cutting from the eccentric part of the circular tube of the cross section of the body 2, and each of the opposite chord grooves 210 has a through hole 210a connected to the insertion channel 20.

[0035] At this time, the buckle module 4 is arranged around the outer periphery of the docking section 21. For example, the buckle module 4 can be roughly C-shaped when it is matched with the docking section 21, but the part corresponding to the relative chord groove 210 can be designed to be roughly linear, so that the buckle module 4 part will buckle the relative chord groove 210 and be limited by the two side walls of the relative chord groove 210. In this way, the buckle module 4 is interfered by the relative chord groove 210 and is axially limited by the body 2.

[0036] Furthermore, the buckle module 4 is pivotally provided with at least one bolt body 41 near the relative chord groove 210, and the bolt body 41 has an actuating portion 412 and an axle portion 411, and the actuating portion 412 can enter the plug-in channel 20 through the through hole 210a. The axle portion 411 is pivotally provided on the buckle module 4 so that the bolt body 41 can rotate relatively. In the present invention, when the actuating portion 412 enters the plug-in channel 20 and is subjected to external force, the bolt body 41 can be driven to rotate relative to the buckle module 4.

[0037] like Figure 3 and Figure 4A , Figure 4B As shown, the buckle module 4 is composed of two fixing frames 42 and two spring push plates 43. The fixing frame 42 is C-shaped and elastic. The overall structure is arranged in the middle section of the C-shaped arc to form a straight strip-shaped cross-section 421. The two fixing frames 42 are arranged on the docking section 21 by upper and lower clamping to form an annular body, so that the cross-section 421 can be buckled with the relative chord groove 210, so that the buckle module 4 is axially limited by the main body 2. The two spring push plates 43 are clamped on the docking section 21 by left and right fitting. The two spring push plates 43 are arranged on the back side of the two fixing frames 42.

[0038] Furthermore, each of the two spring push plates 43 has two corresponding transverse tenons 43a. Specifically, each spring push plate 43 may be in an upright C-shape, and the two transverse tenons 43a of each spring push plate 43 are respectively disposed at the two ends of the C-shape in correspondence with each other. Since the buckle module 4 is disposed on the body 2 by being assembled with the two fixing frames 42, the two transverse tenons 43a of the spring push plate 43 may protrude toward the front end of the body 2, so that the cross-sections 421 of the two corresponding fixing frames 42 are clamped between the vertical spacings of the two transverse tenons 43a. In this way, the two spring push plates 43 respectively limit the two fixing frames 42 to be located between the transverse tenons 43a, and provide balanced limiting force on both the left and right sides.

[0039] In some embodiments, the distance between the two transverse tenons 43a of each spring push plate 43 can also be slightly smaller than the vertical height of the two fixing frames 42 after being matched up and down, and a recessed portion 421a is respectively formed at the outer edge of the cross-sections 421 of the two fixing frames 42 limited by the two spring push plates 43, so that the two elastic fixing frames 42 can deform to allow the transverse tenons 43a to enter between the upper and lower recessed portions 421a. In addition to allowing the transverse tenons 43a of the two spring push plates 43 that are matched on the left and right to contact each other and then stop each other, the transverse tenons 43a are also clamped on the left and right sides by the inner edges of the recessed portions 421a, so as to provide upper and lower limits while not easily causing left and right separation.

[0040] Furthermore, in order to allow the two fixing frames 42 to fit tightly together, an insertion hole 422 and an insertion column 423 suitable for concave-convex fitting may be provided at both ends of each C-shaped ring extension, that is, at the joints where each fixing frame 42 fits with the other one up and down, so that when the two fixing frames 42 with the same configuration fit with each other in a point-symmetrical and inverted manner, the insertion holes 422 and the insertion columns 423 between the two are connected to each other in a concave-convex manner.

[0041] In one embodiment, two pivot grooves 42a may be provided at the front side of each fixing frame 42, and the pivot grooves 42a are recessed along the same side of the two ends of the cross-section 421 for the shaft portion 411 of the bolt body 41 to be pivoted. More specifically, the two fixing frames 42 are respectively recessed toward the center with a notch 42c for accommodating the bolt body 41, and the actuating portion 412 of the bolt body 41 enters the insertion channel 20 through the through holes 210a, whereby the actuating portion 412 can rotate in the insertion channel 20 with the shaft portion 411 as the axis.

[0042] Furthermore, the cross-section 421 may protrude on one side toward the through hole 210a to form a stopper 42b, so that the shaft portion 411 is located in the pivot groove 42a and is supported by the stopper 42b to form a limited state. For example, because the shaft portion 411 is in the shape of a long straight column, the pivot groove 42a must provide a complete opening of the corresponding set projection area during assembly; however, the stopper 42b will at least partially block the opening, so that the projection surface of the shaft portion 411 facing the opening cannot pass completely. However, because the buckle modules 4 may be elastic, the stopper 42b may be deformed so that the shaft portion 411 enters the opening, and then the effect of limiting the shaft portion 411 in the pivot groove 42a is produced within a certain external force range.

[0043] Furthermore, because the shaft portion 411 will rotate with the actuating portion 412, the blocking portion 42b can be formed corresponding to the edge of the actuating portion 412 at the opening of the pivot groove 42a away from the insertion channel 20, thereby not only preventing disengagement, but also when the shaft portion 411 rotates toward the opening side, the rotation of the remaining parts of the bolt body 41 can press the blocking portion 42b, so that the blocking portion 42b can not only block the shaft portion 411 from disengaging from the pivot groove 42a, but also generate a force in the opposite direction of the rotation of the actuating portion 412 due to the elasticity of the material, forcing the bolt body 41 to reverse and return after the external force disappears.

[0044] In addition, an annular positioning groove 210b is formed along the circumferential direction at the rear end of the docking section 21, and the sleeve spring 3 is sleeved on the outer periphery of the docking section 21, and the two ends respectively support the buckle module 4 and the annular positioning groove 210b. In this way, the sleeve spring 3 can provide thrust or elastic force to both ends. During the assembly process, the sleeve spring 3 can be sleeved first, and then the buckle module 4 can be assembled. The annular positioning groove 210b can stably limit the setting of the sleeve spring 3 relative to the body 2 of the female connector docking structure to avoid detachment from the annular positioning groove 210b due to external force, but the present invention is not limited to this.

[0045] Finally, after the above assembly is completed, the pull sleeve 5 is arranged on the outer periphery of the sleeve spring 3 and the buckle module 4. In addition, the front end of the buckle module 4 is supported against the pull sleeve 5.

[0046] Specifically, please refer to Figures 3 to 5 As shown, the sleeve spring 3 can be supported on one side of the annular positioning groove 210b and the spring push plate 43 of the buckle module 4, and the front ends of the two fixing frames 42 can be supported on a linkage portion 51 formed by the circumferential inward contraction of the front end of the pull sleeve 5. In this way, the user can compress the buckle module 4 and the sleeve spring 3 by the linkage portion 51 by applying force to the pull sleeve 5, and move axially toward the rear end of the female joint docking structure. In addition, in order to prevent the pull sleeve 5 from detaching from the body 2, a limit ring 52 can be provided on the outer peripheral edge of the docking section 21 corresponding to the front end of the linkage portion 51, which is relatively closer to the front end of the body 2, so as to limit the linkage portion 51 in the axial direction, so that the pull sleeve 5 cannot be detached from the front end of the female joint docking structure in the axial direction.

[0047] In the present invention, the actuating portion 412 passes through the through holes 210a and can rotate within the insertion channel 20. Figure 5 As shown, when the male connector 1 and the female connector docking structure have not yet docked and are not subjected to external force, the sleeve spring 3 will support the rear end of the buckle module 4, so that the buckle module 4 is pushed toward the front end of the female connector docking structure by the sleeve spring 3.

[0048] In detail, Figure 4A, Figure 4B and Figure 5 As shown, in some embodiments, the front end of the actuating portion 412 of the bolt body 41 is formed with an arc-shaped top surface 412a, and the top surface 412a extends to both sides to form a front top abutment surface 413b and a rear top abutment surface 414b that are planar, and a front side wall 413a is formed between the front top abutment surface 413b and the shaft portion 411, and a rear side wall 414a is formed between the rear top abutment surface 414b and the shaft portion 411.

[0049] Specifically, the top end surface 412a from the shaft portion 411 to the outer end of the actuating portion 412 is the longest rotation radius of the bolt body 41. Therefore, in order to allow the bolt body 41 to rotate, the axial width of the through holes 210a should in principle be greater than the longest rotation radius.

[0050] More specifically, when one of the front side wall 413a and the rear side wall 414a is supported, it can be flat against the corresponding supported plane. Therefore, when there is no external force, due to the support of the two ends of the sleeve spring 3, the bolt body 41 rotates toward the front end, so that the front side wall 413a rotates and closely contacts an inner wall of the through hole 210a, and the corresponding rear top abutting surface 414b is pushed by the spring push plate 43, and the bolt body 41 is limited by the sleeve spring 3 and an inner wall of the through hole 210a (in the forward direction).

[0051] At this time, please refer to Figure 2 , Figure 6 As shown, if the plug-in section 11 of the male connector 1 is inserted into the plug-in channel 20 of the main body 2 from the front end of the female connector docking structure main body 2, the top end surface 412a and the front top abutment surface 413b of the actuating portion 412 will be pushed by the inserted plug-in section 11, and the actuating portion 412 will be rotated toward the plug-in channel 20 by the male connector 1.

[0052] Next, please refer to Figure 2 , Figure 7As shown, as the male connector 1 passes, the actuating portion 412 will correspond to and fall into the slot 12 of the male connector 1, so that the male connector 1 is axially limited. Specifically, after the actuating portion 412 falls into the slot 12 of the male connector 1, the top end surface 412a and the front abutting surface 413b of the actuating portion 412 abut against the inner wall of the slot 12 of the male connector 1, the actuating portion 412 abuts against the inner wall of the through hole 210a toward the front end, and the rear abutting surface 414b is pushed by the spring push plate 43, so that the slot 12 of the male connector 1 achieves an axial limiting effect. Furthermore, since the actuating portion 412 is limited at this position, the actuating portion 412 falls into the slot 12 of the male connector 1, so that the slot 12 of the male connector 1 is clamped, and the male connector 1 cannot be axially displaced outside the plug-in channel 20, thereby achieving the effect of axially limiting the male connector 1.

[0053] In other words, at this time, the bolt body 41 is blocked and cannot rotate toward the outside of the insertion channel 20 at the front end of the female connector docking structure. Therefore, if there is any external force pulling the male connector 1 in this state, the external force on the male connector 1 will be transmitted to the top surface 412a and the front top abutting surface 413b of the bolt body 41 through the inner wall of the slot 12, so that the external force acts on the bolt body 41, but then the external force is stopped by the front side wall 413a of the bolt body 41 against the inner wall of the through hole 210a, so that the male connector 1 is axially limited and cannot be axially separated from the female connector docking structure, thereby stabilizing the docking.

[0054] Come again and see Figure 2 , Figure 8 As shown, if the user applies external force to move the pull sleeve 5 back toward the rear end of the female connector docking structure (pull, push, pull, etc.), the buckle module 4 will be actively driven to move back and compress the sleeve spring 3, and the buckle module 4 will then drive the bolt body 41 to move back together. At the same time, the front side wall 413a of the actuating portion 412 is no longer limited by the inner walls of the through holes 210a, so that the bolt body 41 can have the required space for rotation with the inner walls of the through holes 210a.

[0055] Then, see Figure 2 , Fig. 9 As shown, the bolt body 41, which is pushed by the inner side of the slot 12 of the male connector 1, will rotate toward the outside of the plug channel 20 at the front end of the female connector docking structure. At this time, the bolt body 41 rotates toward the outside of the plug channel 20 to disengage from the slot 12 of the male connector 1, that is, the slot 12 of the male connector 1 is no longer axially limited by the bolt body 41, and the male connector 1 can move toward the outside of the plug channel 20. Afterwards, applying an external force to move the male connector 1 toward the outside of the plug channel 20 can make the male connector 1 smoothly disengage from the plug channel 20. Finally, please refer to Figure 5As shown, after the male connector 1 is completely separated from the insertion channel 20, the bolt body 41 returns to its original position.

[0056] In summary, the present invention achieves the functions of quick connection and quick release of the male connector 1 and the female connector docking structure by the relative rotation of the bolt body 41 in the relative chord groove 210 and the through hole 210a. The docking stroke can be completed at most after the bolt body 41 rotates through, and the rotation radius of the bolt body 41 is smaller than the axial width of the relative chord groove 210 or the through hole 210a. Therefore, the present invention can complete the docking and unlocking in a shorter or very short stroke by the bolt body 41 of the buckle module 4 and the pull sleeve 5.

[0057] In addition, in cooperation with the pull sleeve 5, the present invention allows the buckle module 4 to be axially displaced in the relative chord groove 210 and the through hole 210a, so that the bolt body 41 can be effectively rotated inwardly and outwardly toward the plug channel 20 within the axial width, respectively, to complete docking and unlocking. In summary, the present invention uses the bolt body 41 to cooperate with the male connector 1 inserted into the plug channel 20 to dock and lock the female connector docking structure, and after locking, the pull sleeve 5 is retreated to unlock the bolt body 41 and the male connector 1 is separated from the female connector docking structure.

[0058] In short, when the male connector 1 is inserted into the female connector docking structure, the docking is completed, and when the pull sleeve 5 is pulled back, the female connector docking structure is unlocked, thereby greatly shortening the docking stroke. Therefore, even in a small space such as a cabinet (for example, a data center), the docking and unlocking strokes of the male and female connectors can be completed quickly and smoothly.

[0059] In addition, the present invention also uses the bolt body 41 to limit the inner wall of the through hole 210a relative to the buckle module 4 with the axial vertical plane, and the buckle module 4 abuts against the inner wall of the relative string groove 210 to avoid the problems of poor docking and easy loosening caused by tolerance or unexpected external force. Therefore, the joint docking structure of the present invention has a shorter operating stroke to facilitate the locking and unlocking of the joint docking. At the same time, it has the characteristics of more stable docking and reduced structural size.

[0060] The above is a detailed description of the present invention, and the above is only a preferred embodiment of the present invention, which should not limit the scope of the present invention. That is, all equivalent changes and modifications made according to the present invention should still fall within the scope of the patent of the present invention.

Claims

1. A female joint docking structure, characterized in that: have: A body, with a through insertion passage inside, a docking section at one end of the body, opposite string grooves are arranged on the outer periphery of the docking section, and each of the opposite string grooves has a through hole connected to the insertion passage; A buckle module is disposed around the docking section, the buckle module at least partially buckles the relative string groove, and the buckle module is pivotally provided with at least one bolt body having an actuating portion at the buckle position of the relative string groove, and the actuating portion enters the insertion channel through the through hole; A sleeve spring is sleeved on the docking section, and its two ends respectively support one side of the buckle module and an annular positioning groove formed along the circumference of the docking section; and A pull sleeve is arranged on the sleeve spring and the outer periphery of the buckle module, and the other side of the buckle module supports the pull sleeve.

2. The female joint connection structure according to claim 1, characterized in that: The buckle module has two fixing frames and two spring push plates. The fixing frames are C-shaped and elastic. The overall structure is arranged in the middle section of the C-shaped arc to form a straight strip to form a cross-section. The two fixing frames are clipped together at the top and bottom to form an annular body arranged on the docking section, so that the cross-section can be clipped into the relative chord groove, so that the buckle module is axially limited by the body. The two spring push plates are clipped together on the docking section with left and right cooperation. The two spring push plates are arranged on the back sides of the two fixing frames.

3. The female joint connection structure according to claim 2, characterized in that: Each of the two spring push plates has two corresponding transverse tenons; each spring push plate is in an upright C-shape, and the two transverse tenons of each spring push plate are respectively arranged at the two ends of the C-shape and correspond to each other up and down; the two transverse tenons of the spring push plate protrude toward the front end of the body, so that the cross-sections of the two corresponding fixing frames up and down are clamped between the vertical spacings of the two transverse tenons, and the two spring push plates respectively limit the two fixing frames to be located between the two transverse tenons up and down, and provide balanced limiting force on the left and right sides.

4. The female joint connection structure according to claim 2, characterized in that: A recessed portion is formed at the outer edge of the cross-section where the two fixing frames are limited by the two spring push plates.

5. The female joint connection structure according to claim 2, characterized in that: The two fixing frames are also provided with a plug hole and a plug column suitable for concave-convex matching at the upper and lower joints of the two fixing frames, so that the two fixing frames with the same configuration are mutually plugged in with the plug hole and the plug column in a concave-convex manner.

6. The female joint connection structure according to claim 2, characterized in that: Two pivot grooves are arranged on the front side of each fixing frame, and the two pivot grooves are recessed along the same side of the two ends of the cross section for the shaft part of the bolt body to be pivoted; the two fixing frames are respectively recessed with a notch toward the center for accommodating the bolt body.

7. The female joint connection structure according to claim 6, characterized in that: The cross-section protrudes toward one side of the through hole to form a stopper, so that the shaft is located in the two pivot grooves and is supported by the stopper to form a limited position state.

8. The female joint connection structure according to claim 1, characterized in that: The front end of the actuating portion forms a top end surface of an arc surface, and the top end surface extends to both sides to form a front top abutment surface and a rear top abutment surface, and a front side wall is formed between the front top abutment surface and the shaft portion.

9. The female joint connection structure according to claim 1, characterized in that: The front end of the pull sleeve is contracted inwardly along the circumferential direction to form a linkage portion for supporting the front ends of the two fixing frames.

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