An assembly structure of a multi-specification terminal

Abstract

The utility model relates to related technical field of terminal especially, it is a kind of assembly structure of multi-specification terminal, including shell, the inside bottom end of shell is connected with pedestal, the bottom of shell is connected with bottom plate, the surface of pedestal is provided with adjusting assembly, the surface of adjusting assembly is provided with terminal sleeve, crimping groove is set up in the inside of terminal sleeve, the surface of terminal sleeve is connected with insulating seal cover, the inside of crimping groove is connected with terminal, the surface of the top of bottom plate is provided with wire arrangement assembly. This a kind of assembly structure of multi-specification terminal, by the setting of adjusting assembly, can realize the flexible adjustment and multi-gear positioning of terminal sleeve position in the same shell, without separately designing shell and fixed structure for different specification terminals, greatly reduce mould cost and inventory pressure, while can quickly respond terminal specification change, reduce production line switching and personnel training cost in production link, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of terminal technology, and in particular to an assembly structure for multi-specification terminals. Background Technology

[0002] Terminals are core mechanical and electrical components used in the field of electronics and electrical engineering to connect wires, cables, equipment, components, or other wires. They are essentially "interfaces for the transmission of current and signals" and simultaneously perform the dual functions of mechanical fixation and electrical conduction. They are key nodes for connecting "discrete components" in circuit systems. However, traditional terminal assembly methods are limited, hence the particular need for an assembly structure with multiple terminal specifications.

[0003] Traditional single-specification assembly structures suffer from high mold costs and large inventory pressure due to the "one shell, one use" principle. They also require separate design of shells and fixing structures for different terminals and cannot quickly respond to changes in terminal specifications. As a result, each type of terminal needs to be matched with an independent production line and assembly process in the production process. This not only increases the time cost of equipment debugging and personnel training, but also easily leads to a significant decrease in production efficiency due to frequent specification changes. Utility Model Content

[0004] The purpose of this utility model is to provide an assembly structure for multi-specification terminals to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an assembly structure for multi-specification terminals, including a housing, a base connected to the inner bottom of the housing, a base plate connected to the outer bottom of the housing, an adjustment component provided on the surface of the base, a terminal sleeve provided on the surface of the adjustment component, a crimping groove provided inside the terminal sleeve, an insulating sealing sleeve connected to the surface of the terminal sleeve, a terminal connected inside the crimping groove, and a cable assembly provided on the upper surface of the base plate; The adjustment assembly includes an adjustment groove located inside the base. Slide rails are mounted on both sides of the upper part of the adjustment groove. An adjustment block is slidably connected inside the adjustment groove. Slider blocks are connected to both sides of the upper part of the adjustment block. A positioning groove is provided inside the adjustment block. A telescopic spring is connected to the inner end of the positioning groove. A limit plate is connected to the other end of the telescopic spring. A positioning block is connected to the surface of the limit plate. A fixing hole is provided inside the adjustment groove.

[0006] Preferably, the adjusting block slides inside the adjusting groove via a slider and a slide rail, and the outer wall size of the adjusting block is adapted to the inner wall size of the adjusting groove, and the inner wall size of the bottom of the slider is adapted to the outer wall size of the slide rail.

[0007] Preferably, the end of the positioning block away from the limiting plate is provided as an arc-shaped protrusion structure, and the diameter of the fixing hole is adapted to the outer diameter of the arc-shaped protrusion end of the positioning block.

[0008] Preferably, the fixing holes are provided in multiple identical sets on the inner side of the adjustment groove, and the fixing holes in each set are distributed at equal intervals.

[0009] Preferably, the cable assembly includes a connector, which is fixedly connected to the top of the base plate. A baffle is connected to the inner side of the connector, and a telescopic groove is formed in the middle of the inner side of the connector. A compression spring is connected to the inner end of the telescopic groove, and a connecting plate is connected to the other end of the compression spring. Limiting blocks are connected to the upper and lower sides of the connecting plate, and a limiting groove is formed in the inner side of the telescopic groove. A telescopic rod is connected to the outer side of the connecting plate, and the telescopic rod passes through the baffle. An arc-shaped clamping plate is connected to the outer end of the telescopic rod.

[0010] Preferably, the connecting plate slides inside the telescopic groove via a limiting block and a limiting groove under the action of a compression spring, and the outer wall size of the limiting block is adapted to the inner wall size of the limiting groove.

[0011] Preferably, the two ends of the arc-shaped clamping plate are rounded, and the radius of the rounded corners is adapted to the wall thickness of the arc-shaped clamping plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This multi-specification terminal assembly structure, through the adjustment of component settings, can achieve flexible adjustment and multi-position positioning of the terminal sleeve position within the same housing, eliminating the need to design separate housings and fixing structures for different specifications of terminals, significantly reducing mold costs and inventory pressure, while also enabling rapid response to changes in terminal specifications, reducing production line switching and personnel training costs in the production process, and improving production efficiency.

[0013] 2. This multi-specification terminal assembly structure, through the setting of the ribbon cable assembly, can adapt to the clamping and fixing requirements of ribbon cables of different diameters. There is no need to change the clamping parts for different specifications of ribbon cables. Moreover, the operation is convenient and does not require additional tools. It can not only avoid the risk of short circuit caused by messy ribbon cables, but also improve the efficiency of ribbon cable management and the convenience of later equipment maintenance. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of the present utility model; Figure 2 This is a schematic diagram of the adjustment component structure of this utility model; Figure 3 This is a schematic diagram of the interlocking structure of the terminal sleeve and the terminal of this utility model; Figure 4 This is a schematic diagram of the cable assembly structure of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0015] In the diagram: 1. Housing; 2. Base; 3. Base plate; 4. Adjustment assembly; 401. Adjustment groove; 402. Slide rail; 403. Adjustment block; 404. Slider; 405. Positioning groove; 406. Telescopic spring; 407. Limiting plate; 408. Positioning block; 409. Fixing hole; 5. Terminal sleeve; 6. Crimping groove; 7. Insulating sealing sleeve; 8. Terminal; 9. Cable assembly; 901. Connecting seat; 902. Baffle; 903. Telescopic groove; 904. Compression spring; 905. Connecting plate; 906. Limiting block; 907. Limiting groove; 908. Telescopic rod; 909. Arc-shaped clamping plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 This utility model provides a technical solution: an assembly structure for multi-specification terminals, including a housing 1, a base 2 connected to the bottom of the inner end of the housing 1, a base plate 3 connected to the bottom of the outer side of the housing 1, an adjustment component 4 provided on the surface of the base 2, a terminal sleeve 5 provided on the surface of the adjustment component 4, a crimping groove 6 opened inside the terminal sleeve 5, an insulating sealing sleeve 7 connected to the surface of the terminal sleeve 5, a terminal 8 connected inside the crimping groove 6, and a cable assembly 9 provided on the upper surface of the base plate 3; The adjustment component 4 includes an adjustment groove 401, which is located inside the base 2. Slide rails 402 are mounted on both sides of the upper part of the adjustment groove 401. An adjustment block 403 is slidably connected inside the adjustment groove 401. Slider blocks 404 are connected to both sides of the upper part of the adjustment block 403. A positioning groove 405 is provided inside the adjustment block 403. A telescopic spring 406 is connected to the inner end of the positioning groove 405. A limit plate 407 is connected to the other end of the telescopic spring 406. A positioning block 408 is connected to the surface of the limit plate 407. A fixing hole 409 is provided inside the adjustment groove 401. Through the configuration of the adjustment component 4, when it is necessary to adjust the adjustment according to the end... When adjusting the position of the terminal sleeve 5 of specification 8, the operator first applies an external force to the adjusting block 403 along the length of the adjusting groove 401. If it is necessary to move the adjusting block 403 closer to the side wall of the housing 1, after the external force pushes the adjusting block 403, the arc-shaped protrusion of the positioning block 408 will be subjected to a reverse squeezing force generated by the inner wall of the adjusting groove 401. This squeezing force overcomes the elastic force of the telescopic spring 406, pushing the positioning block 408 to retract into the positioning groove 405. At the same time, it drives the limiting plate 407 to move axially along the positioning groove 405 and compress the telescopic spring 406. At this time, the positioning block 408 disengages from the currently embedded fixing hole 409, and the adjusting block 40... 3. Through the sliding engagement of the sliders 404 on both sides with the slide rail 402, the terminal sleeve 5 moves stably along the adjustment groove 401 until it moves with the adjustment block 403 to the target position of the matching terminal 8. When the adjustment block 403 moves to the target position, the positioning block 408 will align with the fixing hole 409 at the corresponding position inside the adjustment groove 401. At this time, the squeezing force on the positioning block 408 disappears, the telescopic spring 406 releases elastic potential energy, and pushes the limiting plate 407 to move out of the positioning groove 405, thereby driving the arc-shaped protrusion of the positioning block 408 to re-embed into the corresponding fixing hole 409. Utilizing the size of the fixing hole 409 and the positioning block 408... The fitting relationship restricts the displacement of the adjusting block 403 along the adjusting groove 401, achieving precise positioning of the adjusting block 403. During this process, the sliding contact structure between the slider 404 and the slide rail 402 can prevent the adjusting block 403 from shifting or tilting during movement, ensuring that the adjusting block 403 always moves stably along the axial direction of the adjusting groove 401. Multiple sets of equally spaced fixing holes 409 provide multiple positioning positions for the adjusting block 403. The operator can select the corresponding fixing hole 409 to complete the positioning according to the length of the terminal 8 and the assembly requirements of the terminal sleeve 5, ultimately achieving stable assembly of terminals 8 of different specifications in the crimping groove 6.

[0018] Furthermore, the adjusting block 403 slides inside the adjusting groove 401 via the slider 404 and the slide rail 402. The outer wall dimension of the adjusting block 403 matches the inner wall dimension of the adjusting groove 401, and the inner wall dimension of the bottom of the slider 404 matches the outer wall dimension of the slide rail 402. Through the arrangement of the adjusting groove 401, the slide rail 402, the adjusting block 403, and the slider 404, on the one hand, the adjusting groove 401 provides a precise moving track for the adjusting block 403, and its dimensional adaptation relationship with the outer wall of the adjusting block 403 can limit the swaying of the adjusting block 403 in the direction perpendicular to the movement direction, thus preventing the adjusting block from wobbling. 403 exhibits lateral offset. On the other hand, the sliding structure with size-matched sliding rail 402 and slider 404 transforms the sliding contact between adjusting block 403 and adjusting groove 401 into line contact between slider 404 and sliding rail 402, significantly reducing the friction area during sliding and lowering the resistance when adjusting block 403 moves. This makes it easier for operators to push adjusting block 403 to adjust its position, while also avoiding wear caused by direct friction between adjusting block 403 and the inner wall of adjusting groove 401, thus extending the service life of adjusting component 4. The two work together to achieve smooth and stable movement of adjusting block 403 along the preset trajectory.

[0019] Furthermore, the end of the positioning block 408 furthest from the limiting plate 407 is designed with an arc-shaped protrusion, and the diameter of the fixing hole 409 is matched with the outer diameter of the arc-shaped protrusion of the positioning block 408. Through the positioning block 408, the arc-shaped protrusion can convert the squeezing force of the inner wall of the adjusting groove 401 on the positioning block 408 into a component force along the axial direction of the positioning groove 405 when the adjusting block 403 moves. This makes it easier to push the positioning block 408 into the positioning groove 405, avoiding jamming due to the right-angled structure at the end of the positioning block 408, and ensuring the smooth operation of the adjusting block. The smoothness of the movement of 403 and its size fit with the fixing hole 409 ensure that after the positioning block 408 is inserted into the fixing hole 409, the positioning block 408 fits tightly against the inner wall of the fixing hole 409. This prevents the positioning block 408 from shaking in the fixing hole 409 and causing the positioning block 403 to shift. It also effectively resists the influence of slight external vibrations on the position of the adjusting block 403 by limiting the positioning block 408 through the hole wall, ensuring the stability of the adjusting block 403 after positioning, and thus ensuring that the terminal sleeve 5 can be stably fixed in the target position.

[0020] Furthermore, multiple sets of fixing holes 409 are provided on the inner side of the adjustment groove 401, and the fixing holes 409 in each set are evenly distributed. Through the setting of fixing holes 409, multiple sets of fixing holes 409 provide multiple positioning options for the adjustment block 403. The operator can flexibly select the corresponding fixing hole 409 to complete the positioning according to the different lengths of the terminal 8, the fitting distance between the terminal sleeve 5 and the side wall of the housing 1, etc., to meet the assembly position requirements of different specifications of terminals 8. The design of evenly distributed holes makes the adjustment accuracy of the adjustment block 403 more uniform, which makes it easier for the operator to quickly estimate the moving distance of the adjustment block 403. The target position can be roughly determined without repeated measurement, which improves the adjustment efficiency. At the same time, it also ensures the universality and flexibility of the adjustment component 4 for different specifications of terminals 8, and avoids the problem that some specifications of terminals 8 cannot find a suitable positioning position due to uneven distribution of fixing holes 409.

[0021] Furthermore, the cable assembly 9 includes a connector 901, which is fixedly connected to the top of the base plate 3. A baffle 902 is connected to the inner side of the connector 901. A telescopic groove 903 is formed in the middle of the inner side of the connector 901. A compression spring 904 is connected to the inner end of the telescopic groove 903. A connecting plate 905 is connected to the other end of the compression spring 904. Limiting blocks 906 are connected to the upper and lower sides of the connecting plate 905. A limiting groove 907 is formed in the inner side of the telescopic groove 903. A telescopic rod 908 is connected to the outer side of the connecting plate 905. The telescopic rod 908 passes through the baffle 902. An arc-shaped clamping plate 909 is connected to the outer end of the telescopic rod 908. Through the design of the cable assembly 9... When it is necessary to organize and fix the ribbon cable connected to terminal 8, the operator first pulls the arc-shaped clamping plate 909 away from the baffle 902. Under the action of external force, the arc-shaped clamping plate 909 drives the telescopic rod 908 to move outward along the through hole of the baffle 902. The telescopic rod 908 then pulls the connecting plate 905 to move outward from the telescopic groove 903. At this time, the connecting plate 905 will generate a tensile force on the compression spring 904, causing the compression spring 904 to be stretched and store elastic potential energy in the telescopic groove 903. At the same time, the limiting blocks 906 on the upper and lower sides of the connecting plate 905 will slide synchronously along the limiting groove 907 on the inner side of the telescopic groove 903 to prevent the connecting plate 905 from moving during the process. To prevent tilting or shifting, ensure the telescopic rod 908 always moves stably along the axial direction. Once the arc-shaped clamping plate 909 moves to a distance sufficient to accommodate the cable, the operator places the cable in the area between the arc-shaped clamping plate 909 and the baffle 902. Then, release the external force on the arc-shaped clamping plate 909, compressing the spring 904 to release its stored elastic potential energy, generating a contraction force towards the telescopic groove 903. This pushes the connecting plate 905 to reset within the telescopic groove 903. The connecting plate 905 then causes the telescopic rod 908 to contract towards the baffle 902, ultimately bringing the arc-shaped clamping plate 909 closer to the cable and tightly fitting it against the cable surface. Due to the arc-shaped clamping plate 909's... The arc-shaped structure matches the shape of the ribbon cable, increasing the contact area with the cable. Combined with the continuous clamping force provided by the compression spring 904, the ribbon cable can be firmly fixed between the arc-shaped clamping plate 909 and the baffle 902, preventing the ribbon cable from shifting or falling off due to equipment vibration or external pulling. It also prevents the risk of short circuit caused by messy ribbon cables. If the ribbon cable needs to be replaced or adjusted later, simply pull the arc-shaped clamping plate 909 again to stretch the compression spring 904, remove the old ribbon cable and put in the new ribbon cable. After releasing, it can be re-fixed. The whole process does not require any additional tools, is easy to operate, and can adapt to ribbon cables of different diameters, meeting the ribbon cable management needs in multi-specification terminal assembly scenarios.

[0022] Furthermore, under the action of the compression spring 904, the connecting plate 905 slides inside the telescopic groove 903 via the limiting block 906 and the limiting groove 907. The outer wall dimension of the limiting block 906 matches the inner wall dimension of the limiting groove 907. Through the setting of the limiting block 906 and the limiting groove 907, on the one hand, their dimensional matching can restrict the movement direction of the connecting plate 905 within the telescopic groove 903, preventing the connecting plate 905 from lateral displacement, tilting, or even jamming due to the elastic force of the compression spring 904 or external pulling force. The connecting plate 905 always slides smoothly along the axial direction of the telescopic groove 903, thereby ensuring that the telescopic rod 908 drives the arc-shaped clamping plate 909 to accurately align the cable. On the other hand, the sliding cooperation between the limiting block 906 and the limiting groove 907 can disperse the force on the connecting plate 905, prevent the connecting plate 905 from being deformed due to excessive local force, and avoid wear caused by direct friction between the connecting plate 905 and the inner wall of the telescopic groove 903, thus extending the service life of the connecting plate 905 and the telescopic groove 903 and ensuring the stability of the structure during the cable clamping process.

[0023] Furthermore, the two ends of the arc-shaped clamping plate 909 are designed with rounded corners. The radius of the rounded corners is adapted to the wall thickness of the arc-shaped clamping plate 909. Through the design of the arc-shaped clamping plate 909, firstly, the arc-shaped structure can closely fit the cylindrical shape of the ribbon cable, significantly increasing the contact area with the ribbon cable compared to a planar clamping structure. This allows the clamping force to be applied more evenly to the surface of the ribbon cable, avoiding excessive local pressure that could damage the cable's insulation layer. Simultaneously, it improves the clamping stability, preventing the ribbon cable from shifting under equipment vibration or slight pulling. Secondly, the rounded corners at both ends... The structure eliminates the sharp edges of the curved clamping plate 909, preventing sharp edges from scratching the operator's hands or the insulation of the cable when placing or removing the cable, reducing operational safety hazards and the risk of cable damage. In addition, the curved structure, combined with the elastic potential energy of the compression spring 904, can adapt to cables of different diameters. When the diameter of the cable is slightly different, the curved surface can always maintain a close fit to the cable through slight deformation or fine-tuning of position. It can adapt to multiple specifications of cables without changing the clamping parts, further enhancing the versatility of the cable assembly 9.

[0024] Working principle: Before assembling terminal 8, the fitting position of terminal sleeve 5 on base 2 is determined according to the specifications such as length and diameter of terminal 8 to be installed. The operator applies an external force along the length direction of adjustment groove 401 to adjustment block 403 in adjustment assembly 4. If it is necessary to reduce the distance between terminal sleeve 5 and side wall of housing 1, push adjustment block 403 towards side wall of housing 1. At this time, the arc-shaped protrusion of positioning block 408 is subjected to reverse extrusion force from inner wall of adjustment groove 401. This extrusion force overcomes the elastic force of telescopic spring 406, pushing positioning block 408 to retract into positioning groove 405. At the same time, it drives limit plate 407 to compress telescopic spring 406. After positioning block 408 disengages from current fixing hole 409, adjustment block 403 moves through sliders 404 on both sides. The sliding engagement with the slide rail 402 allows for stable movement along the adjusting groove 401. During this process, the size adaptation between the adjusting groove 401 and the adjusting block 403 restricts the lateral displacement of the adjusting block 403. The line contact engagement between the slider 404 and the slide rail 402 reduces the moving resistance, ensuring that the adjusting block 403 smoothly moves the terminal sleeve 5 to the target position. When the terminal sleeve 5 reaches the matching position, the positioning block 408 aligns with the corresponding fixing hole 409 on the inner side of the adjusting groove 401. The compressive force on the positioning block 408 disappears, and the telescopic spring 406 releases its elastic potential energy, pushing the limiting plate 407 to re-embed the positioning block 408 into the fixing hole 409. The precise positioning of the adjusting block 403 is achieved by utilizing the size adaptation relationship between the positioning block 408 and the fixing hole 409, thereby stably fixing the terminal sleeve 5 to the base. On seat 2, if the specifications of terminal 8 are changed, the above adjustment process can be repeated. A new positioning position can be selected through multiple sets of equally spaced fixing holes 409 to meet the adaptation requirements of different specifications of terminal 8 to the position of terminal sleeve 5. After adjusting the position of terminal sleeve 5, terminal 8 is inserted into the crimping groove 6 inside terminal sleeve 5. The structure of crimping groove 6 matches the shape of terminal 8, ensuring initial positioning of terminal 8. The insulating sealing sleeve 7 on the surface of terminal sleeve 5 tightly wraps the connection between terminal sleeve 5 and terminal 8, isolating external dust and moisture, and preventing short circuits between terminal 8 and metal parts such as housing 1, achieving insulation protection and sealing of terminal 8. Then, the wiring connected to terminal 8 is organized and fixed. The operator pulls the arc-shaped clamp of wiring assembly 9 away from baffle 902. Holding plate 909 and arc-shaped clamping plate 909 drive telescopic rod 908 to move outward along the through hole of baffle 902, thereby pulling connecting plate 905 to move outward of telescopic groove 903. Connecting plate 905 stretches and compresses spring 904 to store elastic potential energy. During this process, limiting blocks 906 on the upper and lower sides of connecting plate 905 slide along limiting groove 907. The size of limiting blocks 906 and limiting groove 907 are adapted to limit the tilt of connecting plate 905, ensuring that telescopic rod 908 stably drives arc-shaped clamping plate 909 to move until the distance between arc-shaped clamping plate 909 and baffle 902 is sufficient to accommodate the ribbon cable. After the ribbon cable is placed between arc-shaped clamping plate 909 and baffle 902, arc-shaped clamping plate 909 is released, and compression spring 904 releases elastic potential energy to push connecting plate 905 back to its original position.The connecting plate 905 drives the telescopic rod 908 to retract, causing the arc-shaped clamping plate 909 to tightly fit against the surface of the ribbon cable. The arc-shaped structure of the clamping plate 909 increases the contact area with the ribbon cable, preventing local pressure damage to the cable's insulation layer. The rounded corners at both ends prevent scratches to hands and the ribbon cable during operation. Combined with the continuous clamping force of the compression spring 904, the ribbon cable is firmly fixed, preventing displacement or detachment due to equipment vibration or external pulling. It also avoids the risk of short circuits caused by tangled ribbon cables. The entire process requires no disassembly of the housing 1, making it convenient and highly adaptable, meeting the assembly needs of different terminal specifications 8 in various scenarios. This completes the application process of a multi-specification terminal assembly structure.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An assembly structure for multi-specification terminals, comprising a housing (1), characterized in that: The inner bottom of the housing (1) is connected to a base (2), the outer bottom of the housing (1) is connected to a base plate (3), the surface of the base (2) is provided with an adjustment component (4), the surface of the adjustment component (4) is provided with a terminal sleeve (5), the inside of the terminal sleeve (5) is provided with a crimping groove (6), the surface of the terminal sleeve (5) is connected with an insulating sealing sleeve (7), the inside of the crimping groove (6) is connected with a terminal (8), and the upper surface of the base plate (3) is provided with a ribbon cable assembly (9). The adjustment assembly (4) includes an adjustment groove (401), which is located inside the base (2). Slide rails (402) are installed on both sides above the adjustment groove (401). An adjustment block (403) is slidably connected inside the adjustment groove (401). A slider (404) is connected on both sides above the adjustment block (403). A positioning groove (405) is provided inside the adjustment block (403). A telescopic spring (406) is connected to the inner end of the positioning groove (405). A limit plate (407) is connected to the other end of the telescopic spring (406). A positioning block (408) is connected to the surface of the limit plate (407). A fixing hole (409) is provided inside the adjustment groove (401).

2. The assembly structure for multi-specification terminals according to claim 1, characterized in that: The adjusting block (403) slides inside the adjusting groove (401) via the slider (404) and the slide rail (402). The outer wall size of the adjusting block (403) is adapted to the inner wall size of the adjusting groove (401), and the inner wall size of the bottom of the slider (404) is adapted to the outer wall size of the slide rail (402).

3. The assembly structure for multi-specification terminals according to claim 1, characterized in that: The end of the positioning block (408) away from the limiting plate (407) is provided with an arc-shaped protrusion structure, and the diameter of the fixing hole (409) is adapted to the outer diameter of the arc-shaped protrusion end of the positioning block (408).

4. The assembly structure for multi-specification terminals according to claim 1, characterized in that: The fixing holes (409) are provided in multiple identical sets on the inner side of the adjusting groove (401), and the fixing holes (409) in each set are distributed at equal intervals.

5. The assembly structure for multi-specification terminals according to claim 1, characterized in that: The cable assembly (9) includes a connector (901), which is fixedly connected to the top of the base plate (3). A baffle (902) is connected to the inner side of the connector (901). A telescopic groove (903) is provided in the middle of the inner side of the connector (901). A compression spring (904) is connected to the inner end of the telescopic groove (903). A connecting plate (905) is connected to the other end of the compression spring (904). Limiting blocks (906) are connected to the upper and lower sides of the connecting plate (905). A limiting groove (907) is provided in the inner side of the telescopic groove (903). A telescopic rod (908) is connected to the outer side of the connecting plate (905). The telescopic rod (908) passes through the baffle (902). An arc-shaped clamping plate (909) is connected to the outer end of the telescopic rod (908).

6. The assembly structure for multi-specification terminals according to claim 5, characterized in that: The connecting plate (905) slides inside the telescopic groove (903) through the limiting block (906) and the limiting groove (907) under the action of the compression spring (904), and the outer wall size of the limiting block (906) is adapted to the inner wall size of the limiting groove (907).

7. The assembly structure for multi-specification terminals according to claim 5, characterized in that: The two ends of the arc-shaped clamping plate (909) are set with rounded corners, and the radius of the rounded corners is adapted to the wall thickness of the arc-shaped clamping plate (909).

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