A plug and connector

Abstract

The application discloses a plug and belongs to the technical field of electric connection devices, wherein the plug comprises an insulator, a pin, a lock sleeve, a mounting shell and an unlocking shell; the pin is arranged on the insulator; the lock sleeve is provided with a first sleeve hole and an elastic sheet; the lock sleeve is sleeved on the insulator through the first sleeve hole; the elastic sheet is provided with a locking platform used for clamping into a locking groove of a socket; the mounting shell is sleeved on the lock sleeve; the unlocking shell is provided with a locking hole through which the locking platform passes and clamps into the locking groove; and the unlocking shell is slidingly sleeved on the lock sleeve so as to push the locking platform to move along the direction close to the first sleeve hole and to be separated from the locking groove. The application realizes the anti-pulling-off between the plug and the socket and improves the anti-vibration and anti-impact performance.

Description

Technical Field

[0001] This application relates to the technical field of electrical connection devices, and more particularly to a plug and connector. Background Technology

[0002] In the field of electrical connections, existing connectors typically consist of two core components: a plug and a socket. Their working principle involves the mating of the plug and socket to establish a circuit connection, fulfilling the power or signal transmission needs between devices. However, currently widely used connectors lack effective anti-pull-out structures. In actual use, if the connector is subjected to external force, the plug and socket can easily separate, leading to connection interruption and affecting normal equipment operation. Furthermore, when facing vibration and shock environments, such as the vibration of running machinery or the bumps during transportation, connectors struggle to maintain a stable connection, exhibiting poor vibration and shock resistance. This can potentially lead to a series of problems such as poor contact, signal loss, and even equipment damage, causing numerous inconveniences and potential risks in practical applications. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a plug and connector that can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On the one hand, a plug is provided, comprising:

[0006] Insulator;

[0007] Pins are provided on the insulator;

[0008] A locking sleeve has a first sleeve hole and an elastic piece; the locking sleeve is fitted onto the insulator through the first sleeve hole, and the elastic piece has a locking platform for engaging a locking groove in a socket;

[0009] The mounting housing is fitted onto the locking sleeve;

[0010] The unlocking housing has a locking hole for the locking platform to pass through and engage with the socket; the unlocking housing is slidably fitted onto the locking sleeve to push the locking platform to move along the direction close to the first sleeve hole and disengage from the locking groove of the socket.

[0011] Preferably, the plug further includes a positioning sleeve with a second sleeve hole; the outer side of the positioning sleeve is provided with a positioning groove communicating with the positioning sleeve, the inner wall of the first sleeve hole is provided with a first positioning block, the insulator is provided with a second positioning block, the positioning sleeve is sleeved on the insulator through the second sleeve hole and clamped between the insulator and the locking sleeve, and both the first positioning block and the second positioning block are engaged in the positioning groove.

[0012] Preferably, the positioning groove extends to one end of the positioning sleeve, and the other end of the positioning sleeve is provided with a first positioning ring, which is interference-fitted with the first sleeve hole.

[0013] Preferably, the unlocking housing is slidably disposed on the lock sleeve along a first straight path, and the outer side of the unlocking housing is provided with a positioning key for engaging with the keyway of the socket. The first positioning block and the positioning key are arranged sequentially along a second straight path, and the first straight path is parallel to the second straight path.

[0014] Preferably, the mounting housing has a mounting hole, the inner wall of the mounting hole has a mounting groove, the outer side of the lock sleeve has a mounting block, the mounting housing is fitted onto the lock sleeve through the mounting hole, and the mounting block is engaged with the mounting groove.

[0015] Preferably, the mounting hole has a first channel and a second channel connected in sequence, the diameter of the first channel is larger than the diameter of the second channel, the mounting groove is located in the first channel and communicates with the second channel, a positioning shoulder is formed between the first channel and the second channel, and a positioning shoulder is provided on the outer side of the lock sleeve, the positioning shoulder is interference-fitted with the second channel and abuts against the positioning shoulder.

[0016] Preferably, the outer side of the lock sleeve is provided with a partition groove communicating with the first hole, one end of the elastic piece is connected to the inner wall of the partition groove, and the remaining edges of the elastic piece are spaced apart from the inner wall of the partition groove.

[0017] Preferably, the cross-section of the locking platform gradually increases along the sliding path of the unlocking housing.

[0018] Preferably, the plug further includes a mounting nut and a locking washer; the mounting housing is provided with an external thread, the locking washer and the mounting nut are sequentially sleeved on the external thread of the mounting housing, and the mounting nut is threadedly connected to the mounting housing.

[0019] Preferably, the external thread is provided with a first plane and a second plane, both of which are parallel to the axis of the external thread and are symmetrically distributed about the axis of the external thread.

[0020] Preferably, the insulator has a plurality of spaced pinholes, and the plurality of pins correspond one-to-one with the plurality of pinholes, with the pins inserted into the pinholes.

[0021] On the other hand, a connector is provided, including a socket and the aforementioned plug; the socket is provided with a insertion groove, the inner wall of the insertion groove is provided with a locking groove, one end of the plug is inserted into the insertion groove of the socket, and the locking plate is engaged with the locking groove.

[0022] The beneficial effects of this application are as follows: the plug of this application is provided with a locking sleeve, the locking sleeve has an elastic piece and a locking platform installed on the elastic piece, and the locking platform engages with the locking groove on the socket to prevent the plug from being pulled out.

[0023] This application uses a locking platform to ensure a stable connection between the connector's plug and socket, improving the connector's resistance to vibration and shock, and thus preventing a series of problems such as poor contact, signal loss, or even equipment damage. Attached Figure Description

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the plug structure;

[0026] Figure 2 This is a cross-sectional view of the plug;

[0027] Figure 3 An exploded view of the plug;

[0028] Figure 4 This is a cross-sectional view of the exploded view of the plug;

[0029] Figure 5 Cross-sectional views of the lock housing, mounting housing, and unlocking housing;

[0030] Figure 6 This is a schematic diagram of the structure for mounting the housing.

[0031] Explanation of reference numerals in the attached figures:

[0032] 11. Insulator; 12. Pin; 13. Locking sleeve; 14. Mounting housing; 15. Unlocking housing; 16. Positioning sleeve; 17. Mounting nut; 18. Locking washer;

[0033] 111. Second positioning block; 112. Second positioning ring; 113. Pinhole;

[0034] 131. First set of holes; 132. Elastic sheet; 133. Locking table; 134. First positioning block; 135. Limiting ring; 136. Mounting block; 137. Positioning shoulder; 138. Separating groove;

[0035] 141. Mounting hole; 142. Mounting groove; 143. First channel; 144. Second channel; 145. Positioning shoulder; 146. External thread; 147. First plane; 148. Second plane;

[0036] 151. Keyhole; 152. Positioning key; 153. Sliding hole;

[0037] 161. Second set of holes; 162. Positioning groove; 163. First positioning ring. Detailed Implementation

[0038] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but it may also have additional steps not included in the figures. The process may correspond to a method, function, procedure, subroutine, subroutine, etc.

[0042] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0043] For ease of description, the up and down directions mentioned below are... Figure 2 Its vertical direction is consistent with the horizontal direction mentioned below. Figure 2 Its left and right directions are consistent.

[0044] like Figures 1 to 6 As shown, this embodiment provides a plug, including an insulator 11, a pin 12, a locking sleeve 13, a mounting housing 14, and an unlocking housing 15.

[0045] The pin 12 is disposed on the insulator 11. The insulator 11 is cylindrical, and the pin 12 passes through the insulator 11 along the axis of the insulator 11. Both ends of the pin 12 protrude from the cylindrical shape. One end of the pin 12 is used to connect the wire, and the other end of the pin 12 is used to insert into the socket hole to achieve electrical conduction.

[0046] The locking sleeve 13 has a first sleeve hole 131 and an elastic piece 132 that can deform along the direction of approaching / away from the first sleeve hole 131. The locking sleeve 13 is tubular, and the first sleeve hole 131 extends through the locking sleeve 13 from left to right. The elastic piece 132 can produce elastic deformation inward into the first sleeve hole 131 and elastic deformation outward from the locking sleeve 13. The locking sleeve 13 is fitted onto the insulator 11 through the first sleeve hole 131. A limiting ring 135 is formed on the inner wall of the first sleeve hole 131, and a second positioning ring 112 is provided on the insulator 11. After the entire insulator 11 is inserted into the first sleeve hole 131, the second positioning ring 112 abuts against the limiting ring 135 to achieve the installation and positioning of the insulator 11. The elastic piece 132 is provided with a locking platform 133, which is used to engage with the locking groove of the socket. The locking platform 133 can swing along with the elastic plate 132. Utilizing the elasticity of the elastic plate 132, the locking platform 133 engages with the locking groove of the socket along a direction away from the first socket 131, thus preventing the plug from pulling out of the socket. The insulator 11 and the locking platform 133 are misaligned, meaning the insulator 11 is not on the path of the locking platform 133 moving into the first socket 131, allowing the elastic plate 132 and the locking platform 133 to enter the first socket 131.

[0047] The mounting housing 14 is fitted onto the locking sleeve 13. The mounting housing 14 can support the locking sleeve 13. The mounting housing 14 is used to install on external components such as chassis.

[0048] The unlocking housing 15 has a locking hole 151 through which the locking plate 133 passes, and the locking plate 133, after passing through the locking hole 151, engages with the locking groove of the socket. The mounting housing 14 is sleeved on the right end of the locking sleeve 13, and the unlocking housing 15 is located on the left side of the mounting housing 14. The unlocking housing 15 is slidably sleeved on the locking sleeve 13 to push the locking plate 133 to move along the direction close to the first locking hole 131 and disengage from the locking groove of the socket. The unlocking housing 15 has a sliding hole 153, through which the unlocking housing 15 slides on the locking sleeve 13. The unlocking housing 15 can slide left and right along the locking sleeve 13. When the unlocking housing 15 slides until the lock hole 151 aligns with the locking platform 133, the locking platform 133 engages with the locking groove of the socket to prevent the plug from pulling out after it is plugged in. When the unlocking housing 15 slides and the locking platform 133 disengages from the lock hole 151, the unlocking housing 15 presses against the locking platform 133, causing the locking platform 133 to move into the first sleeve hole 131. The locking platform 133 abuts against the inner wall of the sliding hole 153, preventing the elastic piece 132 from returning to its original position, thus unlocking the plug and socket. The plug and socket can then be separated. When it is necessary to plug and lock the plug and socket again, the unlocking housing 15 is slid back to align the lock hole 151 with the locking platform 133.

[0049] In one embodiment, the plug further includes a positioning sleeve 16 having a second sleeve hole 161. The positioning sleeve 16 is cylindrical and is used to lock the insulator 11 and the locking sleeve 13, preventing the insulator 11 from sliding and the insulator 11 and the locking sleeve 13 from rotating. The outer surface of the positioning sleeve 16 is provided with a positioning groove 162 communicating with the positioning sleeve 16. A first positioning block 134 is provided on the inner wall of the first sleeve hole 131, and a second positioning block 111 is provided on the insulator 11, the second positioning block 111 being connected to the second positioning ring 112. The positioning sleeve 16 is fitted onto the insulator 11 through the second sleeve hole 161 and clamped between the insulator 11 and the locking sleeve 13. The first positioning block 134 and the second positioning block 111 are both inserted into the positioning groove 162. The positioning groove 162 limits the relative rotation of the insulator 11 and the locking sleeve 13. At the same time, the positioning sleeve 16 and the limiting ring 135 of the locking sleeve 13 limit the sliding of the insulator 11, ensuring that the pin 12 can be aligned with the socket hole when the plug is inserted into the socket.

[0050] In one embodiment, the positioning groove 162 extends to one end of the positioning sleeve 16, and the other end of the positioning sleeve 16 is provided with a first positioning ring 163. The first positioning ring 163 is press-fitted with the first sleeve hole 131, and the first positioning ring 163 is pressed into place using a tool. Specifically, when installing the positioning sleeve 16, the left end of the positioning sleeve 16 is first inserted into the first sleeve hole 131 of the locking sleeve 13 and placed on the insulator 11. Therefore, the positioning groove 162 extends to the left end of the positioning sleeve 16, and the right end of the positioning sleeve 16 is provided with a first positioning ring 163. The first positioning ring 163 is press-fitted with the first sleeve hole 131 of the locking sleeve 13 to prevent the positioning sleeve 16 from sliding along its own axial direction or rotating along its own circumference, thereby achieving the installation and positioning of the positioning sleeve 16 and ensuring that the insulator 11, the pin 12, and the positioning sleeve 16 do not wobble or loosen.

[0051] Optionally, the second set of holes 161 includes a third channel and a fourth channel with successively increasing diameters. The third channel and the fourth channel form a shoulder that abuts against the second positioning ring 112, and the second positioning ring 112 is located in the third channel and abuts against the inner wall of the third channel.

[0052] Furthermore, the unlocking housing 15 slides along the first straight path onto the locking sleeve 13, and the unlocking housing 15 slides along the left and right direction onto the locking sleeve 13. The outer surface of the unlocking housing 15 is provided with a positioning key 152 for engaging with the keyway of the socket. The first positioning block 134, the second positioning block 111, and the positioning key 152 are arranged sequentially along the second straight path, which is parallel to the first straight path. Thus, the outer surface of the unlocking housing 15 not only enables positioning when the socket and plug are mated, allowing the locking platform 133 to precisely engage with the locking groove of the socket after the plug is inserted, but also, through the positioning key 152 on the outer surface of the unlocking housing 15, helps the first positioning block 134 of the locking sleeve 13, the second positioning block 111 of the insulator 11, and the positioning groove 162 of the positioning sleeve 16 to be positioned and quickly engaged, ensuring the accurate orientation of the pin 12 and improving the assembly efficiency of the plug.

[0053] Optionally, the outer surface of the unlock housing 15 is provided with directional markings to further improve the assembly efficiency of the plug and ensure that the pins 12 are oriented accurately.

[0054] In one embodiment, the mounting housing 14 has a mounting hole 141 that extends through the housing 14 from left to right. A mounting groove 142 is formed on the inner wall of the mounting hole 141. A mounting block 136 is provided on the outer surface of the lock sleeve 13, increasing the strength and reliability of the lock sleeve 13. When the mounting housing 14 is installed on the lock sleeve 13, the mounting housing 14 is fitted onto the lock sleeve 13 through the mounting hole 141, and the mounting block 136 engages with the mounting groove 142, thus connecting the mounting housing 14 and the lock sleeve 13. The first positioning block 134, the second positioning block 111, the mounting block 136, and the positioning key 152 are arranged sequentially along a second straight path for easy assembly.

[0055] Furthermore, the mounting hole 141 has a first channel 143 and a second channel 144 connected in sequence. Both the first channel 143 and the second channel 144 are round holes. The diameter of the first channel 143 is larger than the diameter of the second channel 144. The mounting groove 142 is located on the inner wall of the first channel 143 and communicates with the second channel 144. A positioning shoulder 145 is formed between the first channel 143 and the second channel 144. The outer side of the locking sleeve 13 is provided with a positioning shoulder 137. The positioning shoulder 137 is interference-fitted with the second channel 144 and abuts against the positioning shoulder 145 to realize the positioning and installation of the mounting housing 14.

[0056] In one embodiment, the outer surface of the lock sleeve 13 is provided with a partition groove 138 communicating with the first sleeve hole 131. The partition groove 138 extends along a U-shaped trajectory, thereby making the lock sleeve 13 form an elastic piece 132. One end of the elastic piece 132 is connected to the inner wall of the partition groove 138, and the remaining edges of the elastic piece 132 are spaced apart from the inner wall of the partition groove 138, thereby causing the elastic piece 132 to elastically swing around the connection point between the elastic piece 132 and the lock sleeve 13.

[0057] Optionally, a positioning shoulder 137 is encircled at one end of the locking sleeve 13, and a locking plate 133 is located near the other end of the locking sleeve 13. When the mounting housing 14 is fitted onto the locking sleeve 13, it fits onto the positioning shoulder 137, and the mounting housing 14 partially covers the partition groove 138. An unlocking housing 15 is fitted onto the end of the locking sleeve 13 where the locking plate 133 is located. Specifically, the locking sleeve 13 is cylindrical and includes a first section, a second section, and a third section with progressively increasing outer diameters. The positioning shoulder 137 is encircled at the end of the third section, the elastic plate 132 and the partition groove 138 extend from the first section to the third section, the locking plate 133 is located in the first section, and the mounting block 136 is located in the second section. When the mounting housing 14 is fitted onto the locking sleeve 13, the mounting groove 142 is aligned with the mounting block 136. The mounting housing 14 and the locking sleeve 13 are pressed into a whole using a tool. At this time, the second hole 144 of the mounting housing 14 and the positioning shoulder 137 are tightly fitted together. Meanwhile, from the outside, the partition groove 138 and the elastic piece 132 on the third section of the locking sleeve 13 are completely hidden and protected by the mounting housing 14, which not only preserves the elasticity of the elastic piece 132 but also ensures the purpose of shortening the overall plug.

[0058] Furthermore, the lock sleeve 13 is provided with a plurality of partition grooves 138, thereby forming a plurality of elastic pieces 132. In this embodiment, the lock sleeve 13 is provided with two partition grooves 138, and the two elastic pieces 132 are symmetrically distributed along the axis of the lock sleeve 13.

[0059] Optionally, the cross-section of the locking platform 133 gradually increases along the sliding path of the unlocking housing 15. The cross-section of the locking platform 133 gradually increases in the direction closer to the mounting housing 14, thereby forming an inclined surface that abuts against the unlocking housing 15. This facilitates the installation of the unlocking housing 15 onto the lock sleeve 13 so that the locking platform 133 can be inserted into the lock hole 151, and also facilitates the unlocking housing 15 to slide towards the mounting housing 14 to release the locking platform 133 from the socket.

[0060] In one embodiment, the plug further includes a mounting nut 17 and a retaining washer 18. The mounting housing 14 has an external thread 146. The retaining washer 18 and the mounting nut 17 are sequentially fitted onto the external thread 146 of the mounting housing 14, and the mounting nut 17 is threadedly connected to the mounting housing 14. The plug can be installed by the cooperation of the mounting nut 17 and the mounting housing 14. The retaining washer 18 restricts the rotation of the mounting nut 17, preventing loosening due to vibration, impact, or temperature changes, thereby ensuring the reliability and safety of the plug installation.

[0061] Furthermore, the external thread 146 is provided with a first plane 147 and a second plane 148. Both the first plane 147 and the second plane 148 are parallel to the axis of the external thread 146, and the first plane 147 and the second plane 148 are symmetrically distributed with the axis of the external thread 146 as the center. The mounting housing 14 is in the shape of a rotating body. The mounting nut 17 can realize the positioning of the mounting housing 14 in the axial direction during installation, and the first plane 147 and the second plane 148 can realize the positioning of the mounting housing 14 in the radial direction during installation.

[0062] In one embodiment, the insulator 11 is provided with a plurality of spaced pinholes 113, and a plurality of pins 12 correspond one-to-one with a plurality of pinholes 113. The plurality of pinholes 113 are arranged in an array, and the pins 12 are inserted into the pinholes 113 to realize the installation of the pins 12. This can ensure that the pins 12 are isolated from each other, increase the creepage distance, and have a higher withstand voltage.

[0063] This embodiment also provides a connector, including a socket and the aforementioned plug. The socket has a insertion slot, and the inner wall of the insertion slot has a keyway and a locking slot. One end of the plug is inserted into the insertion slot of the socket to realize the insertion of the socket and the plug. During the insertion process of the socket and the plug, the positioning key 152 is used to guide and position the connection, so that after the socket and the plug are connected, the locking platform 133 is just locked into the locking slot. The socket and the plug have a self-locking function after connection, which prevents the plug and the socket from being pulled out and improves the vibration and impact resistance.

[0064] Furthermore, existing connectors generally have relatively large and long plugs, while some connectors are smaller overall. However, these connectors only have a simple mating connection function. Adding a locking structure to the outside of the plug would complicate matters and take up a lot of space. Given the current trend of rapid development and the demand for compact and efficient machines and related equipment, the previously larger connectors are no longer sufficient. The plug in this application is a short plug. By setting a locking sleeve 13, which is fitted onto the insulator 11, and then the mounting housing 14 and unlocking housing 15 are fitted onto the locking sleeve 13, the plug has a compact structure and small size, making it suitable for use in more confined spaces and with a wide range of applications. The plug in this application allows the connector to be smaller overall while also providing an anti-pull-out function.

[0065] In summary, this application solves the problems of existing connectors being unable to be used in harsh environments or operate in confined spaces. This application exhibits superior environmental resistance, lower cost, and better vibration and shock resistance, facilitating pure electrical, pure signal, and mixed electrical and signal applications. This application also boasts advantages such as small size, light weight, and high reliability.

[0066] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A plug, characterized in that, include: Insulator (11); A pin (12) is provided on the insulator (11); The locking sleeve (13) has a first sleeve hole (131) and an elastic piece (132); the locking sleeve (13) is fitted onto the insulator (11) through the first sleeve hole (131), and the elastic piece (132) is provided with a locking platform (133) for locking into a locking groove of the socket; The mounting housing (14) is fitted onto the locking sleeve (13); The unlocking housing (15) has a locking hole (151) for the locking platform (133) to pass through and engage with the locking groove of the socket; the unlocking housing (15) is slidably fitted onto the locking sleeve (13) to push the locking platform (133) to move along the direction close to the first sleeve hole (131) and disengage from the locking groove of the socket.

2. The plug according to claim 1, characterized in that, It also includes a positioning sleeve (16) with a second sleeve hole (161); the outer side of the positioning sleeve (16) is provided with a positioning groove (162) communicating with the positioning sleeve (16); a first positioning block (134) is provided on the inner wall of the first sleeve hole (131); a second positioning block (111) is provided on the insulator (11); the positioning sleeve (16) is sleeved on the insulator (11) through the second sleeve hole (161) and clamped between the insulator (11) and the locking sleeve (13); the first positioning block (134) and the second positioning block (111) are both inserted into the positioning groove (162).

3. The plug according to claim 2, characterized in that, The positioning groove (162) extends to one end of the positioning sleeve (16), and the other end of the positioning sleeve (16) is provided with a first positioning ring (163), which is interference-fitted with the first sleeve hole (131).

4. The plug according to claim 2, characterized in that, The unlocking housing (15) slides along the first straight path on the lock sleeve (13). The outer side of the unlocking housing (15) is provided with a positioning key (152) for engaging with the keyway of the socket. The first positioning block (134) and the positioning key (152) are arranged sequentially along the second straight path, which is parallel to the second straight path.

5. The plug according to claim 1, characterized in that, The mounting housing (14) is provided with a mounting hole (141), and a mounting groove (142) is provided on the inner wall of the mounting hole (141). A mounting block (136) is provided on the outer side of the lock sleeve (13). The mounting housing (14) is fitted onto the lock sleeve (13) through the mounting hole (141), and the mounting block (136) is engaged with the mounting groove (142).

6. The plug according to claim 5, characterized in that, The mounting hole (141) has a first channel (143) and a second channel (144) connected in sequence. The diameter of the first channel (143) is larger than the diameter of the second channel (144). The mounting groove (142) is located in the first channel (143) and communicates with the second channel (144). A positioning shoulder (145) is formed between the first channel (143) and the second channel (144). The outer side of the locking sleeve (13) is provided with a positioning shoulder (137). The positioning shoulder (137) is interference-fitted with the second channel (144) and abuts against the positioning shoulder (145).

7. The plug according to any one of claims 1 to 6, characterized in that, The outer side of the lock sleeve (13) is provided with a partition groove (138) that communicates with the first sleeve hole (131). One end of the elastic piece (132) is connected to the inner wall of the partition groove (138), and the remaining edges of the elastic piece (132) are spaced apart from the inner wall of the partition groove (138).

8. The plug according to any one of claims 1 to 6, characterized in that, The cross-section of the locking platform (133) gradually increases along the sliding path of the unlocking housing (15).

9. The plug according to any one of claims 1 to 6, characterized in that, It also includes a mounting nut (17) and a retaining washer (18); the mounting housing (14) is provided with an external thread (146), the retaining washer (18) and the mounting nut (17) are sequentially sleeved on the external thread (146) of the mounting housing (14), and the mounting nut (17) is threadedly connected to the mounting housing (14).

10. The plug according to claim 9, characterized in that, The external thread (146) is provided with a first plane (147) and a second plane (148). The first plane (147) and the second plane (148) are both parallel to the axis of the external thread (146), and the first plane (147) and the second plane (148) are symmetrically distributed about the axis of the external thread (146).

11. The plug according to any one of claims 1 to 6, characterized in that, The insulator (11) is provided with a plurality of spaced pinholes (113), and a plurality of pins (12) correspond one-to-one with a plurality of pinholes (113), and the pins (12) are inserted into the pinholes (113).

12. A connector, characterized in that, Includes a socket and a plug as described in any one of claims 1 to 11; the socket is provided with a insertion slot, the inner wall of the insertion slot is provided with a locking groove, one end of the plug is inserted into the insertion slot of the socket, and the locking plate (133) is engaged in the locking groove.

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