Quick locking anti-falling structure and method for automobile connector

Abstract

The invention discloses a quick locking anti-falling structure and method of an automobile connector, the structure comprises a connector body, a locking device and a socket, and the connector body is used for being inserted into the socket; the locking device is composed of four anti-disengaging assemblies, four positioning holes are formed in the socket, and the four anti-disengaging assemblies penetrate through the bottom of the connector body and then are installed in the four positioning holes to fix the connector body. The anti-disengaging assembly comprises a rotating outer cylinder, a rotating inner cylinder, a limiting gear, a first limiting assembly, a second limiting assembly and a limiting rail. The rotating inner cylinder is used for being rotationally installed in the positioning hole, the limiting gear is fixedly installed on the outer wall of the rotating inner cylinder, the rotating outer cylinder penetrates through the bottom of the connector body and then is rotationally connected with the upper end face of the socket, the first limiting assemblies are installed on the rotating outer cylinder, and the multiple second limiting assemblies are installed on the rotating outer cylinder; the invention aims to solve the problem of unstable connection between a connector and a socket in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of automobile connectors, and in particular to a quick locking and anti-dropping structure and method for an automobile connector. Background Art

[0002] With the increasing application of automotive electronic products, the demand for automotive connectors is also growing. In the future, automotive connectors will develop in the direction of "miniaturization", "high-speed mobility" and intelligence. At the same time, with the continuous expansion of China's automobile market and the continuous development of the automobile industry, China's automotive connector market will also usher in greater development opportunities.

[0003] The automotive connector is a component used by electronic engineering technicians to build a communication bridge in the internal circuit of the car. It can establish a connection between blocked or isolated parts of the circuit, allowing current to flow, thereby realizing the predetermined function of the circuit and ensuring the normal connection and operation of various devices inside the car.

[0004] The utility model patent with application number: CN202223528302.5 and publication number: CN219163821 U (hereinafter referred to as "prior art 1") discloses an anti-dropping automobile connector, belonging to the field of connectors, including a plug sleeve, a plug movably installed in the plug sleeve, fixed sleeves fixedly installed at both sides of the plug sleeve, and a fixing mechanism movably installed on the plug sleeve and the plug, the fixing mechanism includes a No. 1 card slot, a rotating rod, a No. 1 card body, a No. 1 limit rod, an L-shaped pressure head, a No. 2 card head and a No. 2 limit slot, and the No. 1 card slot is fixedly opened on the fixed sleeve;

[0005] The specification of prior art 1 discloses an anti-dropping automobile connector. When in use, the L-shaped pressure head is inserted into the fixing sleeve through the provided fixing mechanism, and the No. 2 clamping head is clamped into the No. 1 clamping slot for preliminary fixing. The No. 1 limiting rod of the No. 1 clamping body is flipped downward so that the No. 1 limiting rod is clamped into the inner position of the L-shaped pressure head to fix the plug again. When the plug is disengaged, the No. 2 limiting slot and the plate body on the side of the No. 1 clamping slot are clamped with each other, making it difficult for the plug to be disengaged. However, in actual applications, the connector body is not easy to drop off, and the place where it is really easy to drop off is between the connector and the socket. The prior art only focuses on the anti-dropping of the connector itself, and ignores the locking and anti-dropping between the connector and the socket. Summary of the invention

[0006] The invention provides a quick locking and anti-dropping structure and method for an automobile connector, aiming to solve the problem of unstable connection between a connector and a socket in the prior art.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A quick locking and anti-dropping structure for an automobile connector comprises a connector body, a locking device and a socket, wherein the connector body is used for being inserted into the socket; the locking device is composed of four anti-dropping components, and four positioning holes are provided on the socket. The four anti-dropping components are respectively passed through the bottom of the connector body and then installed in the four positioning holes to fix the connector body;

[0009] Among them, the anti-dropping component includes a rotating outer cylinder, a rotating inner cylinder, a limiting gear, a first limiting component, a second limiting component and a limiting track; the rotating inner cylinder is used to be rotatably installed inside the positioning hole, the limiting gear is fixedly installed on the outer wall of the rotating inner cylinder, the rotating outer cylinder passes through the bottom of the connector body and is rotatably connected to the upper end surface of the socket, the first limiting component is installed on the rotating outer cylinder, there are several second limiting components, and several second limiting component arrays are installed at the bottom of the rotating inner cylinder, several limiting holes are arranged inside the positioning hole, and the second limiting component is used to be placed in the limiting hole to fix the position of the connector body; the limiting track is arranged on the socket, and the first limiting component is used to be placed between the transmission teeth of the limiting gear after contacting with the limiting track, so that the rotating outer cylinder and the rotating inner cylinder form an integrated structure.

[0010] Furthermore, a rotating rod is arranged on the rotating outer cylinder.

[0011] Furthermore, the first limiting assembly includes a first mounting cylinder, a first limiting rod and a first spring. The first mounting cylinder is fixedly mounted on the rotating outer cylinder. A sliding hole is provided at the bottom of the first mounting cylinder. The first limiting rod slides with the sliding cylinder. The first spring is sleeved on the first limiting rod. One end of the spring is connected to the bottom of the first mounting cylinder, and the other end is connected to the first limiting rod.

[0012] Furthermore, the first limiting rod has two large ends and a small end, the small end is located between the two large ends, and the two ends of the small end are respectively connected to the two large ends. A mounting hole is provided on the rotating outer cylinder, the large end close to the limiting gear side is located outside the first mounting cylinder and slides in the mounting hole, and the other large end slides in the first mounting cylinder, and the first spring is sleeved on the small end, one end of the first spring is connected to the bottom of the first mounting cylinder, and the other end is used to contact the bottom surface of the large end away from the limiting gear side, and the large end away from the limiting gear side is used to contact the limiting track.

[0013] Furthermore, the second limiting assembly includes a second mounting cylinder, a second spring and a second limiting rod. The second mounting cylinder is fixedly mounted on the bottom of the rotating inner cylinder, the second limiting rod is slidably mounted inside the second mounting cylinder, the second spring is arranged inside the second mounting cylinder, one end of the second spring is connected to the second mounting cylinder, and the other end is connected to the second limiting rod. The second limiting rod is used to cooperate with the limiting hole.

[0014] Furthermore, the limiting rail includes a supporting part and a clamping part, the supporting part is arranged on the socket, the clamping part is installed on the supporting part, and the clamping part has a clamping rail, and the thickness of the clamping rail gradually becomes thicker along the counterclockwise rotation direction of the first limiting rod, so that when the first limiting rod moves from the thinnest position of the clamping rail to the thickest position of the clamping rail, the first limiting rod slides in the direction of the limiting gear inside the first mounting cylinder and compresses the first spring.

[0015] Furthermore, a first guiding inclined surface is arranged on the first limiting column.

[0016] Furthermore, a second guiding inclined surface is provided on both the second limiting column and the limiting hole.

[0017] A method for quickly locking and preventing a car connector from falling off comprises the following steps:

[0018] S1: Align the pins on the connector body with the sockets on the socket;

[0019] S2: Install the connector body and insert it into the socket. At this time, rotate the inner tube and place it into the positioning hole;

[0020] S3: rotating the outer cylinder to drive the first limit assembly to rotate;

[0021] S4: After the first limiting assembly contacts the limiting track, the limiting track presses the first limiting portion, so that the first limiting portion is located between the transmission teeth of the limiting gear;

[0022] S5: Continue to rotate the rotating outer cylinder. At this time, the rotating outer cylinder and the rotating inner cylinder form an integrated structure under the action of the first limiting portion. The rotating outer cylinder rotates to drive the rotating inner cylinder to rotate;

[0023] S6: After the rotating inner cylinder is rotated, the second limiting assembly is matched with the limiting hole, and at this time, the rotating inner cylinder drives the rotating outer cylinder to be fixed.

[0024] When removing the connector body:

[0025] S7: Repeat the operations of S3-S5, disengage the second limiting assembly from the limiting hole, and remove the connector body.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention mainly includes a connector body, a locking device and a socket. In actual use, the staff aligns the pins on the connector body with the jacks on the socket and aligns the rotating inner cylinder with the positioning hole, and then installs the connector body on the socket. At this time, the rotating inner cylinder is inserted into the positioning hole; then the rotating outer cylinder is rotated. Since the first limiting component is installed on the rotating outer cylinder, the rotating outer cylinder will drive the first limiting component to rotate after rotating the rotating outer cylinder. When the first limiting component contacts the limiting track, along with the rotation of the first limiting component, the limiting track squeezes the first limiting part, thereby making the first limiting part located between the transmission teeth of the limiting gear; when the rotating outer cylinder continues to be rotated, the rotating outer cylinder and the rotating inner cylinder form a locking mechanism under the action of the first limiting part. The one-piece structure drives the rotating inner cylinder to rotate after the rotating outer cylinder rotates; when the rotating inner cylinder rotates, the second limit assembly cooperates with the limit hole, and the rotating inner cylinder drives the rotating outer cylinder to be fixed; when disassembling the connector body, it is necessary to rotate the rotating outer cylinder again until the first limit assembly turns one circle and comes back to contact the limit track again, and the rotating outer cylinder drives the rotating inner cylinder and the second limit assembly to slide out of the limit hole, and the connector body can be pulled out; the advantage of this arrangement is that the connection relationship between the connector body and the socket can be made more stable, and after vibration occurs when the car is driving, the rotating outer cylinder rotates. In the case of no external force to rotate the rotating outer cylinder, it cannot drive the rotating inner cylinder to rotate together, so that the connection relationship between the connector body and the socket is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of the present invention.

[0030] Figure 2 It is a schematic diagram of the connection relationship between the limiting gear and the rotating inner cylinder in the present invention.

[0031] Figure 3 It is a schematic diagram of the connection relationship between the rotating outer cylinder and the rotating rod in the present invention.

[0032] Figure 4 It is a schematic diagram of the connection relationship between the rotating inner cylinder and the second limiting assembly in the present invention.

[0033] Figure 5 It is a schematic diagram of the connection relationship between the connector body and the rotating outer cylinder in the present invention.

[0034] Figure 6 For the present invention Figure 3 sectional view of .

[0035] Figure 7 For the present invention Figure 5 A partial enlarged view of point A in the middle.

[0036] In the figure, 101-connector body, 102-socket, 103-positioning hole, 104-rotating outer cylinder, 105-rotating inner cylinder, 106-limiting gear, 107-limiting hole, 108-rotating rod, 109-first mounting cylinder, 110-first limiting rod, 111-first spring, 112-sliding hole, 113-large end, 114-small end, 115-second mounting cylinder, 116-second spring, 117-second limiting rod, 118-supporting part, 119-pressing part, 120-pressing track, 121-first guide slope, 122-second guide slope. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the embodiments, which are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0038] See also Figure 1-Figure 7 As shown, this embodiment discloses a quick locking and anti-dropping structure of an automobile connector, comprising a connector body 101, a locking device and a socket 102, wherein the connector body 101 is used to be inserted into the socket 102; the locking device is composed of four anti-dropping components, and four positioning holes 103 are provided on the socket 102. The four anti-dropping components pass through the bottom of the connector body 101 respectively and are installed in the four positioning holes 103 to fix the connector body 101;

[0039] Among them, the anti-dropping component includes a rotating outer cylinder 104, a rotating inner cylinder 105, a limiting gear 106, a first limiting component, a second limiting component and a limiting track; the rotating inner cylinder 105 is used to be rotatably installed inside the positioning hole 103, and the limiting gear 106 is fixedly installed on the outer wall of the rotating inner cylinder 105. The rotating outer cylinder 104 passes through the bottom of the connector body 101 and is rotatably connected to the upper end surface of the socket 102. The first limiting component is installed on the rotating outer cylinder 104, and there are several second limiting components. Several second limiting components are arrayed and installed at the bottom of the rotating inner cylinder 105. Several limiting holes 107 are arranged inside the positioning hole 103. The second limiting component is used to be placed inside the limiting hole 107 to fix the position of the connector body 101; the limiting track is arranged on the socket 102, and the first limiting component is used to be placed between the transmission teeth of the limiting gear 106 after contacting with the limiting track, so that the rotating outer cylinder 104 and the rotating inner cylinder 105 form an integrated structure;

[0040] The present invention mainly includes a connector body 101, a locking device and a socket 102. In actual use, the staff aligns the pins on the connector body 101 with the plug holes on the socket 102, and aligns the rotating inner cylinder 105 with the positioning hole 103, and then installs the connector body 101 on the socket 102. At this time, the rotating inner cylinder 105 is inserted into the positioning hole 103; then the rotating outer cylinder 104 is rotated. Since the first limiting component is installed on the rotating outer cylinder 104, the rotating outer cylinder 104 will drive the first limiting component to rotate after rotating the rotating outer cylinder 104. When the first limiting component contacts the limiting track, along with the rotation of the first limiting component, the limiting track squeezes the first limiting part, thereby making the first limiting part located between the transmission teeth of the limiting gear 106; when the outer cylinder 104 continues to be rotated, the rotating outer cylinder 104 and the rotating inner cylinder 105 form a The invention has a three-dimensional structure, and the rotating outer cylinder 104 drives the rotating inner cylinder 105 to rotate after the rotating outer cylinder 104 is rotated; when the rotating inner cylinder 105 is rotated, the second limiting component cooperates with the limiting hole 107, and the rotating inner cylinder 105 drives the rotating outer cylinder 104 to be fixed; when disassembling the connector body 101, it is necessary to rotate the outer cylinder 104 again until the first limiting component rotates one circle and comes back to contact the limiting track again, and the rotating outer cylinder 104 drives the rotating inner cylinder 105 and the second limiting component to slide out of the limiting hole 107, and the connector body 101 can be pulled out; the advantage of such a setting is that the connection relationship between the connector body 101 and the socket 102 can be made more stable, and after the vibration occurs when the car is driving, the rotating outer cylinder 104 rotates. In the case of no external force to rotate the outer cylinder 104, the rotating inner cylinder 105 cannot be driven to rotate together, so that the connection relationship between the connector body 101 and the socket 102 is more stable.

[0041] In some embodiments, a rotating rod 108 is disposed on the rotating outer cylinder 104 .

[0042] In actual use, the purpose of providing the rotating rod 108 is to facilitate the rotation of the rotating outer cylinder 104 .

[0043] In some embodiments, the first limiting assembly includes a first mounting cylinder 109, a first limiting rod 110 and a first spring 111. The first mounting cylinder 109 is fixedly mounted on the rotating outer cylinder 104. A sliding hole 112 is provided at the bottom of the first mounting cylinder 109. The first limiting rod 110 slides with the sliding cylinder. The first spring 111 is sleeved on the first limiting rod 110. One end of the spring is connected to the bottom of the first mounting cylinder 109, and the other end is connected to the first limiting rod 110.

[0044] During actual use, after the rotating outer cylinder 104 rotates, it drives the first mounting cylinder 109 to rotate synchronously. When the first limiting rod 110 contacts the limiting track, the limiting track squeezes the first limiting rod 110. After the first limiting rod 110 is squeezed, the first spring 111 is compressed. At this time, the first limiting rod 110 slides in the first mounting cylinder 109, and the first limiting rod 110 is inserted between the transmission teeth of the limiting gear 106, thereby driving the limiting gear 106 to rotate. Since the limiting gear 106 is fixedly connected to the rotating inner cylinder 105, the limiting gear 106 will drive the rotating inner cylinder 105 to rotate synchronously after rotating, and then drive the second limiting assembly to cooperate with the limiting hole 107 to fix the position of the rotating inner cylinder 105.

[0045] In some embodiments, the first limiting rod 110 has two large ends 113 and a small end 114, the small end 114 is located between the two large ends 113, and the two ends of the small end 114 are respectively connected to the two large ends 113, and a mounting hole is provided on the rotating outer cylinder 104. The large end 113 close to the limiting gear 106 is located outside the first mounting cylinder 109 and slides with the mounting hole, and the other large end 113 slides with the first mounting cylinder 109. The first spring 111 is sleeved on the small end 114, one end of the first spring 111 is connected to the bottom of the first mounting cylinder 109, and the other end is used to contact the bottom surface of the large end 113 away from the limiting gear 106, and the large end 113 away from the limiting gear 106 is used to contact the limiting track.

[0046] In actual use, the advantage of such a configuration is that the large end 113 close to the limiting gear 106 can form a limit with the bottom of the first mounting tube 109 to prevent the first limiting rod 110 from being disengaged from the first mounting tube 109 .

[0047] In some embodiments, the second limiting assembly includes a second mounting cylinder 115, a second spring 116 and a second limiting rod 117. The second mounting cylinder 115 is fixedly mounted on the bottom of the rotating inner cylinder 105, and the second limiting rod 117 is slidably mounted inside the second mounting cylinder 115. The second spring 116 is arranged inside the second mounting cylinder 115. One end of the second spring 116 is connected to the second mounting cylinder 115, and the other end is connected to the second limiting rod 117. The second limiting rod 117 is used to cooperate with the limiting hole 107.

[0048] In actual use, when the rotating inner cylinder 105 rotates, the second mounting cylinder 115 is driven to rotate, and the second mounting cylinder 115 is driven to rotate, and the second limiting rod 117 is then in contact with the inner wall of the positioning hole 103, and the second limiting rod 117 compresses the second spring 116. When the second limiting rod 117 rotates to the limiting hole 107, the second spring 116 is no longer compressed and enters the limiting hole 107, thereby causing

[0049] In some embodiments, the limiting rail includes a supporting portion 118 and a clamping portion 119, the supporting portion 118 is arranged on the socket 102, the clamping portion 119 is installed on the supporting portion 118, and the clamping portion 119 has a clamping rail 120, and the thickness of the clamping rail 120 gradually becomes thicker along the counterclockwise rotation direction of the first limiting rod 110, so that when the first limiting rod 110 moves from the thinnest position of the clamping rail 120 to the thickest position of the clamping rail 120, the first limiting rod 110 slides in the direction of the limiting gear 106 inside the first mounting cylinder 109 and compresses the first spring 111.

[0050] In some embodiments, a first guiding inclined surface 121 is disposed on the first limiting column.

[0051] In actual use, the first guiding inclined surface 121 is provided to enable the first limiting column to slide with the clamping rail 120 better.

[0052] In some embodiments, the second limiting column and the limiting hole 107 are both provided with a second guiding inclined surface 122 .

[0053] In actual use, the second guiding inclined surface 122 is provided to make it easier for the second limiting column and the limiting hole 107 to be disengaged when driven by external force.

[0054] A method for quickly locking and preventing a car connector from falling off comprises the following steps:

[0055] S1: Align the pins on the connector body 101 with the holes on the socket 102;

[0056] S2: Install the connector body 101 on the socket 102. At this time, rotate the inner cylinder 105 to place it in the positioning hole 103;

[0057] S3: Rotate the outer cylinder 104 to drive the first limit assembly to rotate;

[0058] S4: After the first limiting assembly contacts the limiting track, the limiting track presses the first limiting portion, so that the first limiting portion is located between the transmission teeth of the limiting gear 106;

[0059] S5: Continue to rotate the outer cylinder 104. At this time, the rotating outer cylinder 104 and the rotating inner cylinder 105 form an integrated structure under the action of the first limiting portion. The rotating outer cylinder 104 rotates and drives the rotating inner cylinder 105 to rotate.

[0060] S6: After the rotating inner cylinder 105 rotates, the second limiting assembly cooperates with the limiting hole 107 . At this time, the rotating inner cylinder 105 drives the rotating outer cylinder 104 to be fixed.

[0061] When disassembling the connector body 101:

[0062] S7: Repeat the operations of S3-S5, disengage the second limiting assembly from the limiting hole 107, and remove the connector body 101.

[0063] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0064] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0065] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick locking and anti-dropping structure of an automobile connector, comprising a connector body (101) and a socket (102), wherein the connector body (101) is used for being inserted into the socket (102); the characteristics are: It also includes a locking device, which is composed of four anti-dropping components. Four positioning holes (103) are provided on the socket (102). The four anti-dropping components pass through the bottom of the connector body (101) and are installed in the four positioning holes (103) to fix the connector body (101). The anti-drop assembly comprises a rotating outer cylinder (104), a rotating inner cylinder (105), a limiting gear (106), a first limiting assembly, a second limiting assembly and a limiting track; the rotating inner cylinder (105) is used for being rotatably mounted inside the positioning hole (103); the limiting gear (106) is fixedly mounted on the outer wall of the rotating inner cylinder (105); the rotating outer cylinder (104) passes through the bottom of the connector body (101) and is rotatably connected to the upper end surface of the socket (102); the first limiting assembly is mounted on the rotating outer cylinder (104); and the second limiting gear (106) is fixedly mounted on the outer wall of the rotating inner cylinder (105). There are a plurality of limiting components, wherein an array of a plurality of second limiting components is installed at the bottom of the rotating inner cylinder (105), a plurality of limiting holes (107) are arranged inside the positioning hole (103), and the second limiting components are used to be inserted into the limiting holes (107) to fix the position of the connector body (101); a limiting track is arranged on the socket (102), and the first limiting component is used to be placed between the transmission teeth of the limiting gear (106) after contacting the limiting track, so that the rotating outer cylinder (104) and the rotating inner cylinder (105) form an integrated structure.

2. The quick locking and anti-dropping structure of an automobile connector according to claim 1, characterized in that: A rotating rod (108) is arranged on the rotating outer cylinder (104).

3. The quick locking and anti-dropping structure of an automobile connector according to claim 1, characterized in that: The first limiting assembly comprises a first mounting cylinder (109), a first limiting rod (110) and a first spring (111). The first mounting cylinder (109) is fixedly mounted on the rotating outer cylinder (104). A sliding hole (112) is provided at the bottom of the first mounting cylinder (109). The first limiting rod (110) is slidably matched with the sliding cylinder. The first spring (111) is sleeved on the first limiting rod (110). One end of the spring is connected to the bottom of the first mounting cylinder (109), and the other end is connected to the first limiting rod (110).

4. The quick locking and anti-dropping structure of an automobile connector according to claim 3, characterized in that: The first limiting rod (110) has two large ends (113) and a small end (114), the small end (114) is located between the two large ends (113), and the two ends of the small end (114) are respectively connected to the two large ends (113). A mounting hole is provided on the rotating outer cylinder (104), the large end (113) close to the limiting gear (106) is located outside the first mounting cylinder (109) and slidably cooperates with the mounting hole, and the other large end (113) is slidably cooperated with the first mounting cylinder (109), and the first spring (111) is sleeved on the small end (114), one end of the first spring (111) is connected to the bottom of the first mounting cylinder (109), and the other end is used to contact the bottom surface of the large end (113) on the side away from the limiting gear (106), and the large end (113) on the side away from the limiting gear (106) is used to contact the limiting track.

5. The quick locking and anti-dropping structure of an automobile connector according to claim 1, characterized in that: The second limiting assembly comprises a second mounting tube (115), a second spring (116) and a second limiting rod (117). The second mounting tube (115) is fixedly mounted on the bottom of the rotating inner tube (105). The second limiting rod (117) is slidably mounted inside the second mounting tube (115). The second spring (116) is arranged inside the second mounting tube (115). One end of the second spring (116) is connected to the second mounting tube (115), and the other end is connected to the second limiting rod (117). The second limiting rod (117) is used to cooperate with the limiting hole (107).

6. The quick locking and anti-dropping structure of an automobile connector according to claim 1, characterized in that: The limiting track comprises a supporting portion (118) and a clamping portion (119), wherein the supporting portion (118) is arranged on the socket (102), and the clamping portion (119) is installed on the supporting portion (118). The clamping portion (119) has a clamping track (120), and the thickness of the clamping track (120) gradually increases along the counterclockwise rotation direction of the first limiting rod (110), so that when the first limiting rod (110) moves from the thinnest position of the clamping track (120) to the thickest position of the clamping track (120), the first limiting rod (110) slides in the direction of the limiting gear (106) inside the first mounting tube (109) and compresses the first spring (111).

7. The quick locking and anti-dropping structure of an automobile connector according to claim 3, characterized in that: A first guiding inclined surface (121) is arranged on the first limiting column.

8. The quick locking and anti-dropping structure of an automobile connector according to claim 5, characterized in that: The second limiting column and the limiting hole (107) are both provided with a second guiding inclined surface (122).

9. A method for quickly locking and preventing a car connector from falling off, comprising using a quick locking and preventing a car connector from falling off structure according to any one of claims 1 to 9, characterized in that: The steps include: S1: Align the pins on the connector body (101) with the sockets on the socket (102); S2: Install the connector body (101) on the socket (102), and then rotate the inner cylinder (105) to place it in the positioning hole (103); S3: rotating the outer cylinder (104), and the rotating outer cylinder (104) drives the first limit assembly to rotate; S4: After the first limiting assembly contacts the limiting track, the limiting track presses the first limiting portion, thereby causing the first limiting portion to be located between the transmission teeth of the limiting gear (106); S5: Continue to rotate the rotating outer cylinder (104). At this time, the rotating outer cylinder (104) and the rotating inner cylinder (105) form an integrated structure under the action of the first limiting portion, and the rotating outer cylinder (104) rotates to drive the rotating inner cylinder (105) to rotate; S6: After the rotating inner cylinder (105) is rotated, the second limiting assembly is matched with the limiting hole (107). At this time, the rotating inner cylinder (105) drives the rotating outer cylinder (104) to be fixed. When removing the connector body (101): S7: Repeat the operations of S3-S5, disengage the second limiting assembly from the limiting hole (107), and remove the connector body (101).

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