Plug bush and socket
By using a split design for the first and second elastic sheet structures, combined with a flanged guide, the problem of short service life of traditional sockets is solved, improving the durability and stability of the socket and reducing production costs.
Patent Information
- Application Number
- CN202520009360.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Traditional sockets have a short lifespan. As usage frequency increases, poor contact between the socket and the plug leads to the socket becoming unusable, making it difficult to meet the high frequency of daily use.
Design a socket with a split first and second elastic plate structure. The first elastic plate provides the main clamping force, and the second elastic plate contacts and clamps it after wear and tear, thus extending its service life. The flanged guide structure improves the smoothness of pin insertion.
It significantly extends the service life of the socket, improves the durability and stability of the socket, while maintaining a reliable connection with the plug and reducing production costs.
Smart Images
Figure CN223871741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a socket and a socket. Background Technology
[0002] With the increasing prevalence of wall sockets in public places, the lifespan requirements for these sockets are becoming more stringent, and traditional sockets are finding it increasingly difficult to meet these demands. Existing sockets consist of two elastic tabs in each socket socket, with the socket's elasticity entirely provided by these two tabs. After a certain number of uses (the national standard stipulates a socket's lifespan of 5,000 uses), the two elastic tabs deform, leading to poor contact between the socket socket and the plug pin, rendering the socket unusable. Furthermore, with the increasing frequency of daily use, the required lifespan of sockets is also rising. Therefore, improving the lifespan of sockets is a problem that needs to be addressed. Utility Model Content
[0003] The purpose of this utility model is to overcome at least one defect of the prior art and provide a socket and a socket.
[0004] A socket includes a socket body and at least one set of clamping structures connected to the socket body. Each set of clamping structures includes two opposing elastic plates, with a clamping portion for clamping a pin formed between the two elastic plates. Each elastic plate includes a first elastic plate and a second elastic plate. The first elastic plates of the two elastic plates are opposingly arranged and have first contact portions with opposing bending protrusions. The second elastic plates of the two elastic plates are opposingly arranged and have second contact portions with opposing bending protrusions. The first contact portions and the second contact portions at least partially overlap, such that the clamping portion is formed between the first contact portions of the two elastic plates and between the second contact portions of the two elastic plates. The distance between the first contact portions of the two elastic plates is less than the distance between the second contact portions of the two elastic plates.
[0005] Furthermore, the second elastic sheet has a mounting hole in the middle, the mounting hole including a first mounting hole area corresponding to the second contact portion, the first elastic sheet is disposed in the mounting hole of the second elastic sheet, and the first contact portion of the first elastic sheet is at least partially located in the first mounting hole area.
[0006] Furthermore, the first contact portion of the first elastic sheet protrudes into the clamping portion relative to the second elastic sheet and is higher than the first mounting hole area.
[0007] Furthermore, the first elastic sheet includes a first inclined segment, a first bent segment, and a second inclined segment connected in sequence, and the second elastic sheet includes a third inclined segment, a second bent segment, and a fourth inclined segment connected in sequence. The fourth inclined segment is connected to the insert body. The opposing sides of the first bent segments of the two first elastic sheets serve as the first contact portion, and the opposing sides of the second bent segments of the two second elastic sheets serve as the second contact portion.
[0008] Furthermore, the mounting holes are formed on the third inclined segment, the second bent segment, and the fourth inclined segment, and the portion of the mounting hole corresponding to the second bent segment is the first mounting hole area, with the first bent segment of the first elastic sheet at least partially located within the first mounting hole area.
[0009] Furthermore, the pair of first inclined segments and second inclined segments of the two first elastic sheets, which are arranged opposite each other, are inclined in opposite directions from the first bending segment. The pair of third inclined segments and fourth inclined segments of the two second elastic sheets, which are arranged opposite each other, are inclined in opposite directions from the second bending segment. The fourth inclined segment is connected to the insert body, and the third inclined segment is folded outward to form a flange.
[0010] Furthermore, the bottom of the second inclined segment of the first elastic sheet is connected to the lower sidewall of the mounting hole of the second elastic sheet, or the top of the first inclined segment of the first elastic sheet is connected to the upper sidewall of the mounting hole of the second elastic sheet.
[0011] Furthermore, the insert body includes a fixing piece and a connecting piece, which are located below the clamping part. The fixing pieces are arranged in pairs and extend upward to form a clamping structure, and the fixing pieces are connected to each other by the connecting piece.
[0012] Furthermore, each pair of first elastic sheets is arranged symmetrically with each other, and each pair of second elastic sheets is arranged symmetrically with each other.
[0013] Furthermore, the socket also includes a second clamping part, which is located below the clamping part in the direction of pin insertion. After the pin is inserted, the second clamping part and the clamping part simultaneously clamp the pin.
[0014] A socket comprising any of the aforementioned sockets.
[0015] Furthermore, it also includes a panel, a pressure plate, a base, and a protective door assembly. The base has a socket mounting groove facing the pressure plate, the socket is disposed in the socket mounting groove, and the protective door assembly is disposed between the panel and the base.
[0016] The insert of this utility model is designed with a split elastic plate as a first elastic plate and a second elastic plate. This makes the stress of the insert mainly concentrated in the first elastic plate during use. When the first elastic plate is worn down with the increase of use, or fails due to metal fatigue, the second elastic plate then contacts and clamps the pin, thereby significantly improving the service life of the insert.
[0017] In addition, while possessing the above-mentioned functions, the overall structure of the socket is close to that of a conventional socket, giving it stronger adaptability; the first elastic sheet and the second elastic sheet can be manufactured in one piece, which facilitates production and saves costs.
[0018] In addition, a flange is added as a guide structure to guide the pin to smoothly extend into the contact part, improve the user experience, and prevent the sleeve from being damaged by external force. Furthermore, the second elastic piece is integrally formed with the flange, and the first and second elastic pieces share the same guide structure, which facilitates manufacturing and saves production costs.
[0019] In addition, the two contact parts of the insert are overlapped, and the first contact part and the second contact part are both located on the side with the flange near the elastic piece and below the flange, ensuring that the first elastic piece can provide clamping force throughout the entire process of inserting the pin, thereby further extending the service life of the clamping structure. Attached Figure Description
[0020] Figure 1 This is a front view of the insert of this utility model;
[0021] Figure 2a , 2b This is a partial enlarged view of the conductive sheet of the insert in this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of a first embodiment of the insert of this utility model;
[0023] Figure 4 This is a cross-sectional view of the socket of the first embodiment of this utility model;
[0024] Figure 5 This is a schematic diagram of the structure of the second embodiment of the insert of this utility model;
[0025] Figure 6 This is a cross-sectional view of the socket in Embodiment 2 of this utility model;
[0026] Figure 7 This is a schematic diagram of the structure of the third embodiment of the insert of this utility model;
[0027] Figure 8 This is a schematic diagram of the structure of the L-pole socket and N-pole socket of this utility model;
[0028] Figure 9This is an exploded view of the socket structure of this utility model;
[0029] Figure label:
[0030] 1-Sleeve body; 11-Fixing plate; 12-Connecting plate; 2-Elastic plate; 21-First elastic plate; 22-Second elastic plate; 2-1-First inclined section; 2-2-Second inclined section; 2-3-Third inclined section; 2-4-Fourth inclined section; 21-1-First bending section; 21-2-Second bending section; 220-Flanged edge; 211-First contact part; 221-Second contact part; 23-Gap; 24-Mounting hole; 3-Clamping part; 4-Connecting bridge; 51-Panel; 52-Pressure plate; 53-Base; 54-Protective door assembly; Detailed Implementation
[0031] The following embodiments, in conjunction with the accompanying drawings, further illustrate the specific implementation of the insert of this utility model.
[0032] The changeover switch of this utility model is not limited to the description of the following embodiments.
[0033] like Figure 1-2a As shown, the socket includes a socket body 1 and at least one set of clamping structures. The clamping structures are connected to the socket body 1. The socket body 1 is used to cooperate with other structures inside the socket to fix the socket. It is provided with wiring terminals for connecting to wires. Each set of clamping structures includes two oppositely arranged elastic pieces. A clamping part 3 for clamping the pin is formed between the two elastic pieces. When the socket is connected to the plug, the pin extends into the clamping part 3. The two elastic pieces contact and clamp the pin to achieve electrical connection.
[0034] The improvement of this embodiment is that each elastic sheet includes a first elastic sheet 21 and a second elastic sheet 22. The first elastic sheet 21 and the second elastic sheet 22 are retracted into the clamping part 3 to form a first contact part 211 and a second contact part 221 for clamping the pin. Specifically, the first elastic sheet 21 and the second elastic sheet 22 are both made of elastic material and are connected to each other. The first elastic sheet 21 of the two elastic sheets is arranged opposite to each other and has a first contact part 211 with a bending protrusion facing each other. The second elastic sheet 22 of the two elastic sheets is arranged opposite to each other and has a second contact part 221 with a bending protrusion facing each other. In addition, the first contact part 211 and the second contact part 221 at least partially overlap, so that the clamping part 3 is formed between the first contact parts 211 of the two elastic sheets and between the second contact parts 221 of the two elastic sheets. In this way, the connection quality between the clamping part 3 and the pin is guaranteed while dispersing stress.
[0035] The distance between the first contact portions 211 of the two elastic plates is less than the distance between the second contact portions 221 of the two elastic plates. That is, when the pin is inserted into the clamping part 3, it first contacts the first contact portions 211 with smaller spacing, causing the first elastic plate 21 to undergo elastic deformation and clamp the pin. At this time, the clamping force of the pin is mainly provided by the first elastic plate 21, and the stress of the sleeve is also mainly concentrated in the first elastic plate 21. Obviously, the widths of the first contact portions 211 and the second contact portions 221 are both smaller than the width of the pin to ensure that sufficient clamping force can be provided when the pin is inserted.
[0036] The insert of this utility model has a split clamping structure with a first elastic piece 21 and a second elastic piece 22. This design allows the stress of the insert to be mainly concentrated in the first elastic piece 21 during use. When the first elastic piece 21 is worn down with the increase of use or fails due to metal fatigue, the second elastic piece 22 contacts and clamps the pin, thereby significantly improving the service life of the insert.
[0037] It should be noted that in the prior art, there are also cases where a socket has two clamping parts 3, but these two clamping parts 3 clamp the socket simultaneously to increase the clamping force. This is different from the first contact part 211 and the second contact part 221 in this application. In this application, the first contact part 211 and the second contact part 221 together constitute a clamping part 3, and the second contact part 221 is used after the first contact part 211 is worn.
[0038] Of course, as other embodiments, the socket of this application may also include a second clamping part in addition to the clamping part 3 composed of the first contact part 211 and the second contact part 221. The second clamping part and the clamping part 3 clamp the pin at the same time to increase the clamping force. In the direction of pin insertion, the second clamping part is located below the clamping part 3. After the pin is inserted, the second clamping part and the clamping part 3 clamp the pin at the same time.
[0039] Furthermore, such as Figure 3-7 As shown, a first elastic sheet 21 is disposed within a second elastic sheet 22. A mounting hole 24 is formed in the middle of the second elastic sheet 22. The mounting hole 24 includes a first mounting hole area corresponding to the second contact portion 221; that is, a portion of the second contact portion 221 has a first mounting hole area as part of the mounting hole 24. (Refer to...) Figure 2b , 3 In this embodiment, when the mounting hole 24 is not opened, the first mounting hole area is the middle section of the second contact portion 221. When the mounting hole 24 is opened, this part of the second contact portion 221 is cut off and used as part of the mounting hole 24.
[0040] The first elastic piece 21 is disposed within the mounting hole 24 of the second elastic piece 22, and the first contact portion 211 of the first elastic piece 21 is at least partially located within the area of the first mounting hole, so that the first contact portion 211 and the second contact portion 221 partially overlap. This allows the socket to have the above-mentioned functions while its overall structure is close to that of a conventional socket, providing stronger adaptability. If combined with other existing technologies, an additional pair of third elastic pieces can be provided in the clamping portion 3, with each pair of third elastic pieces forming a third contact portion as a second clamping portion. The width of the third contact portion is equal to the width of the first contact portion 211 or the second contact portion 221. When the pin is inserted, the third contact portion and the first contact portion 211 or the second contact portion 221 together clamp the pin, further increasing the clamping force of the clamping structure on the pin. In addition, the first elastic piece 21 and the second elastic piece 22 can be manufactured in one piece, which is convenient for production and saves costs.
[0041] like Figure 2b As shown, the first contact portion 211 of the first elastic piece 21 protrudes into the clamping portion 3 relative to the second elastic piece 22 and is higher than the first mounting hole area. Specifically, as shown... Figure 4 , 6 As shown, the first elastic sheet 21 includes a first inclined segment 2-1, a first bent segment 21-1 and a second inclined segment 2-2 connected in sequence. The first inclined segment 2-1 and the second inclined segment 2-2 are inclined inward toward the clamping part 3. The opposing sides of the first bent segments 21-1 of the two first elastic sheets 21 serve as the first contact part 211. The second elastic sheet 22 includes a third inclined segment 2-3, a second bent segment 21-2 and a fourth inclined segment 2-4 connected in sequence. The third inclined segment 2-3 and the fourth inclined segment 2-4 are inclined inward toward the clamping part 3. The opposing sides of the second bent segments 21-2 of the two second elastic sheets 22 serve as the second contact part 221.
[0042] Preferably, the mounting hole 24 is formed on the third inclined segment 2-3, the second bent segment 21-2 and the fourth inclined segment 2-4, and the portion of the mounting hole 24 corresponding to the second bent segment 21-2 is the first mounting hole area, and the first bent segment 21-1 of the first elastic sheet 21 is at least partially located within the first mounting hole area.
[0043] Furthermore, the pair of first inclined segments 2-1 and second inclined segments 2-2 of the two first elastic sheets 21, which are arranged opposite each other, are inclined in a direction away from each other starting from the first bending segment 21-1. Similarly, the pair of third inclined segments 2-3 and fourth inclined segments 2-4 of the two second elastic sheets 22, which are arranged opposite each other, are inclined in a direction away from each other starting from the second bending segment 21-2. This causes the gap between each pair of first elastic sheets 21 and second elastic sheets 22 to gradually increase along both sides of the first contact portion 211 and the second contact portion 221, respectively. That is, the first inclined segment 2-1 of the first elastic sheet 21... The third inclined segment 2-3 of the first elastic sheet 21 and the second elastic sheet 22 are inclined from top to bottom into the clamping part 3. The second inclined segment 2-2 of the first elastic sheet 21 and the fourth inclined segment 2-4 of the second elastic sheet 22 are inclined from bottom to top into the clamping part 3. Finally, the first inclined segment 2-1 and the second inclined segment 2-2 are connected in the clamping part 3 via the first bending segment 21-1 to form the first elastic sheet 21. The third inclined segment 2-3 and the fourth inclined segment 2-4 are connected in the clamping part 3 via the second bending segment 21-2 to form the second elastic sheet 22.
[0044] Furthermore, such as Figure 1 , 9 As shown, the fourth inclined segment 2-4 of the second elastic piece 21 is connected to the insert body 1, and the end of the third inclined segment 2-3 away from the second bent segment 21-2 is folded outward to form a flange 220. The flange 220 is used to guide the pin into the clamping part 3, avoiding direct contact between the pin and the edge of the second elastic piece 22, which would cause damage. The flange 220 is added as a guide structure to guide the pin to smoothly enter the contact part, improve the user experience, and prevent the insert from being damaged by external force. In addition, the second elastic piece 22 and the flange 220 are integrally formed, and the first elastic piece 21 and the second elastic piece 22 share the same guide structure, which facilitates manufacturing and saves production costs.
[0045] In this invention, the two contact portions of the insert are overlapped. The first contact portion 211 and the second contact portion 221 are both located on the side near the elastic sheet with the flange 220 and below the flange 220, ensuring that the first elastic sheet 21 can provide clamping force throughout the entire process of inserting the pin, thereby further extending the service life of the clamping structure.
[0046] like Figure 2a-6As shown, when the pin is inserted, it first contacts the first contact part 211 and presses the first elastic piece 21 into the mounting hole 24. During this process, the second elastic piece 22 deforms elastically in the opposite direction to the clamping part 3. When the pin is fully inserted, the first elastic piece 21 and the second elastic piece 22 make large-area contact with the pin to ensure the reliability of the connection. At this time, the two elastic pieces clamp the pin together, but the main clamping force is provided by the first elastic piece 21 with a smaller spacing. The stress that was originally concentrated at the connection between the elastic piece and the plug body 1 is dispersed to the deformation of the first elastic piece 21 to improve the stress distribution and significantly improve the stability and durability of the clamping structure.
[0047] like Figure 3-4 As shown, a first embodiment of the connection method between the first elastic sheet 21 and the second elastic sheet 22 is as follows:
[0048] In this embodiment, the bottom of the second inclined section 2-2 of the first elastic piece 21 is connected to the lower side wall of the mounting hole 24 of the second elastic piece 22. The first inclined section 2-1 of the first elastic piece 21 extends into the mounting hole 24 at an incline to avoid the upper end of the first elastic piece 21 from obstructing the insertion of the pin. When the pin is inserted, the pin first contacts the first contact part 211, causing the first elastic piece 21 to deform into the mounting hole 24 and clamp the pin.
[0049] like Figure 5-6 As shown, a second embodiment of the connection method between the first elastic sheet 21 and the second elastic sheet 22 is as follows:
[0050] In this embodiment, the top of the first inclined segment 2-1 of the first elastic piece 21 is connected to the upper side wall of the mounting hole 24 of the second elastic piece 22. Compared with the connection method of the first embodiment, this embodiment ensures that the width of the first contact portion 211 is smaller than the width of the second contact portion 221, and at the same time, it does not need to consider that the first elastic piece 21 will obstruct the insertion of the pin, further simplifying the production process.
[0051] like Figure 7 As shown, a third embodiment of the connection method between the first elastic sheet 21 and the second elastic sheet 22 is as follows:
[0052] Based on the previous two embodiments, in this embodiment, the side of the first elastic sheet 21 and the inner wall of the second elastic sheet 22 form a gap 23. During use, the first elastic sheet 21 will deform due to metal fatigue, causing friction and collision between the first elastic sheet 21 and the inner wall of the second elastic sheet 22, which affects the service life of the sleeve. Leaving a sufficient gap 23 on the side can ensure that the first elastic sheet 21 has enough deformation space and avoid excessive wear on the second elastic sheet 22 before the first elastic sheet 21 fails.
[0053] like Figure 1-7As shown, the main body 1 of the insert also includes a fixing piece 11 and a connecting piece 12. The fixing piece 11 and the connecting piece 12 are located below the clamping part 3. The fixing piece 11 is integrally formed with the clamping structure forming the clamping part 3. The fixing pieces 11 are arranged in pairs and extend upward to form the clamping structure. The fixing pieces 11 are connected to each other by the connecting piece 12. In this embodiment, the connecting piece 12 is located on one side of a pair of fixing pieces 11. That is, when the insert is unfolded, a pair of fixing pieces 11 are respectively connected to the two ends of the connecting piece 12. In this way, the insert can be integrally stamped and formed during the production process, thereby improving production efficiency.
[0054] Furthermore, the socket includes an L-pole socket, an N-pole socket, and an E-pole socket. The L-pole socket and the N-pole socket include at least two clamping parts 3, which are interconnected. Specifically, as shown... Figure 5 As shown, the two clamping parts 3 are connected by an integrally formed fixing piece 11. For ease of description, the connection between the two clamping parts 3 is defined as the connecting bridge 4. The two ends of the connecting bridge 4 are respectively connected to one of the fixing pieces 11 under the clamping part 3. In addition, the wiring terminal can be provided at the connecting bridge 4 for connection with the wire. Of course, for different types of sockets, the L-pole socket and the N-pole socket can be provided with different numbers of clamping parts 3. When the socket is installed in a two-hole or three-hole socket, the L-pole socket and the N-pole socket can also be provided with only one clamping part 3.
[0055] Preferably, the two elastic plates constituting the clamping structure are symmetrical to each other. That is, each pair of first elastic plates 21 is symmetrically arranged, and each pair of second elastic plates 22 is also symmetrically arranged. This ensures that the planes of the first contact portion 211 and the second contact portion 221 are perpendicular to the insertion direction of the pin. In this way, when the pin is inserted, it can contact the elastic plates on both sides simultaneously, making the pin insertion process smoother. At the same time, it avoids that the failure time of the first elastic plates 21 on both sides is too different due to uneven force, which would affect the subsequent use of the sleeve. Of course, as a deteriorated embodiment, the planes of the first contact portion 211 and the second contact portion 221 have an angle greater than or less than 90° with the insertion direction of the pin, which can still achieve the technical effect of this utility model.
[0056] This utility model also provides a socket with the above-mentioned socket sleeve installed, such as Figure 9 As shown, the socket includes a panel 51 and a pressure plate 52 connected to each other. The panel is provided with sockets. In this embodiment, there are five sockets, which correspond to two-phase plugs and three-phase plugs respectively. A base 53 is provided between the panel 51 and the pressure plate 52. The base 53 is provided with a socket mounting groove in the direction facing the pressure plate 52 for installing sockets. The sockets are arranged in the socket mounting grooves corresponding to the sockets.
[0057] Furthermore, a protective door assembly 54 is provided between the panel 51 and the base 53. The base 53 is provided with a protective door frame facing the panel 51. The protective door assembly 54 is disposed within the protective door frame. The protective door frame is provided with a protective door socket corresponding to the socket and the clamping part 3. The protective door socket is located between the socket and the clamping part 3. The protective door assembly 54 includes a protective door and a spring. The protective door and the protective door frame are connected by the spring. The position of the protective door corresponding to the protective door socket is an inclined surface. When the pin is inserted, it first contacts the inclined surface, causing the protective door to slide to one side, compressing the spring and exposing the protective door socket. It then extends into the clamping part 3 of the socket through the protective door socket, and the first elastic piece 21 contacts and clamps the pin to complete the connection.
[0058] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.
[0059] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.
Claims
1. A socket, comprising a socket body (1) and at least one set of clamping structures connected to the socket body (1), each set of clamping structures comprising two opposing elastic plates, wherein a clamping portion (3) for clamping a pin is formed between the two elastic plates, characterized in that, Each of the elastic sheets includes a first elastic sheet (21) and a second elastic sheet (22). The first elastic sheets (21) of the two elastic sheets are arranged opposite each other and have a first contact portion (211) with a bending protrusion facing each other. The second elastic sheets (22) of the two elastic sheets are arranged opposite each other and have a second contact portion (221) with a bending protrusion facing each other. The first contact portion (211) and the second contact portion (221) overlap at least partially, so that the clamping portion (3) is formed between the first contact portions (211) of the two elastic sheets and between the second contact portions (221) of the two elastic sheets. The distance between the first contact portions (211) of the two elastic sheets is less than the distance between the second contact portions (221) of the two elastic sheets.
2. The sleeve according to claim 1, characterized in that, The second elastic piece (22) has a mounting hole (24) in the middle. The mounting hole (24) includes a first mounting hole area corresponding to the second contact portion (221). The first elastic piece (21) is disposed in the mounting hole (24) of the second elastic piece (22), and the first contact portion (211) of the first elastic piece (21) is at least partially located in the first mounting hole area.
3. The sleeve according to claim 2, characterized in that, The first contact portion (211) of the first elastic piece (21) protrudes into the clamping portion (3) relative to the second elastic piece (22) and is higher than the first mounting hole area.
4. The sleeve according to claim 2, characterized in that, The first elastic sheet (21) includes a first inclined segment (2-1), a first bent segment (21-1), and a second inclined segment (2-2) connected in sequence. The second elastic sheet (22) includes a third inclined segment (2-3), a second bent segment (21-2), and a fourth inclined segment (2-4) connected in sequence. The fourth inclined segment (2-4) is connected to the insert body (1). The opposing sides of the first bent segments (21-1) of the two first elastic sheets (21) serve as the first contact portion (211), and the opposing sides of the second bent segments (21-2) of the two second elastic sheets (22) serve as the second contact portion (221).
5. The sleeve according to claim 4, characterized in that, The mounting hole (24) is formed on the third inclined section (2-3), the second bent section (21-2) and the fourth inclined section (2-4). The portion of the mounting hole (24) corresponding to the second bent section (21-2) is the first mounting hole area. The first bent section (21-1) of the first elastic sheet (21) is at least partially located within the first mounting hole area.
6. The sleeve according to claim 5, characterized in that, Two first elastic plates (21) are arranged opposite to each other, with a pair of first inclined segments (2-1) and second inclined segments (2-2) inclined in opposite directions from the first bending segment (21-1). Two second elastic plates (22) are arranged opposite to each other, with a pair of third inclined segments (2-3) and fourth inclined segments (2-4) inclined in opposite directions from the second bending segment (21-2). The fourth inclined segment (2-4) is connected to the insert body (1). The third inclined segment (2-3) is folded outward to form a flange (220).
7. The sleeve according to claim 5, characterized in that, The bottom of the second inclined segment (2-2) of the first elastic piece (21) is connected to the lower side wall of the mounting hole (24) of the second elastic piece (22), or the top of the first inclined segment (2-1) of the first elastic piece (21) is connected to the upper side wall of the mounting hole (24) of the second elastic piece (22).
8. The socket according to claim 1, characterized in that, The insert body (1) includes a fixing piece (11) and a connecting piece (12). The fixing piece (11) and the connecting piece (12) are located below the clamping part (3). The fixing pieces (11) are arranged in pairs and extend upward to form a clamping structure. The fixing pieces (11) are connected to each other by the connecting piece (12).
9. The socket according to claim 1, characterized in that, Each pair of first elastic sheets (21) are arranged symmetrically with each other, and each pair of second elastic sheets (22) are arranged symmetrically with each other.
10. The sleeve according to claim 1, characterized in that, The socket also includes a second clamping part. In the direction of pin insertion, the second clamping part is located below the clamping part (3). After the pin is inserted, the second clamping part and the clamping part (3) clamp the pin simultaneously.
11. A socket, characterized in that, Includes the socket as described in any one of claims 1-10.
12. The socket according to claim 11, characterized in that, It also includes a panel (51), a pressure plate (52), a base (53) and a protective door assembly (54). The base (53) has a socket mounting groove facing the pressure plate (52). The socket is disposed in the socket mounting groove. The protective door assembly (54) is disposed between the panel (51) and the base (53).