Plate end plastic inner shell
By introducing structures such as limiting blocks, limiting grooves, insertion grooves, and internal threaded sleeves into the plastic inner shell at the plate end, the problem of difficulty in replacing damaged pins is solved, enabling convenient replacement of pins and rapid assembly of the device.
Patent Information
- Application Number
- CN202520100512.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The existing plate-end plastic inner shell is integrally molded, making it difficult to replace damaged pins during use, which affects the use of the device.
A plastic inner shell for plate end is designed. Through the cooperation of structures such as limiting block, limiting groove, insertion groove, square connecting frame and internal threaded sleeve, the shell can be quickly connected and disassembled, which facilitates the replacement of pins.
This enables convenient replacement of the pins, improving the ease of maintenance and assembly efficiency of the device.
Smart Images

Figure CN223797581U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of connector technology, specifically relating to a board-end plastic inner shell. Background Technology
[0002] The board-end plastic inner shell is a component of connectors, commonly used in electronic devices. Its main function is to house and secure the pins, and through its interaction with the top cover, it positions and tightens the pins. It is typically made of plastic, possessing a certain degree of elasticity and strength. During connector assembly, the pins are inserted through through-holes in the board-end plastic inner shell and soldered to the circuit board during the soldering process.
[0003] Problems with existing technology:
[0004] The existing plastic inner shells at the plate end are mostly molded as a single piece during use, which makes it inconvenient to replace the pins inside when they are damaged, thus affecting the use of the device. Utility Model Content
[0005] The purpose of this utility model is to provide a plate-end plastic inner shell that can solve the problem that most existing plate-end plastic inner shells are integrally molded during use, making it inconvenient to replace the damaged pins and thus affecting the use of the device.
[0006] The specific technical solution adopted by this utility model is as follows:
[0007] A plastic inner shell for plate end includes a shell mechanism two. A shell mechanism one is provided at the left end of the shell mechanism two. Copper busbar bodies are provided at both the front and rear ends of the shell mechanism two. Two pins are provided inside the shell mechanism two. The left side of each of the two pins is inserted into a pin sleeve one with two slots one inside. The pin sleeve one is provided inside the shell mechanism one.
[0008] Both ends of the first pin sleeve are fixedly connected to limit blocks 1. Both limit blocks 1 are engaged with the first housing mechanism. Both right ends of the first limit blocks 1 are fixedly connected to two limit rods. All four limit rods are inserted into the second housing mechanism. The right end of the first pin sleeve overlaps with the second housing mechanism.
[0009] The interior of the pin housing is provided with a connecting groove, and the connecting groove communicates with the two slots.
[0010] The housing mechanism one includes a housing one, which has two through slots inside. The right end of the housing one is inserted into the left end of the housing mechanism two. The housing one is engaged with the left end of the housing mechanism two through two limiting slots inside its right end. The right side of the housing one has eight circular limiting holes inside, and all eight circular limiting holes are sleeved with the left end of the housing mechanism two.
[0011] The housing 1 is connected to the pin sleeve through an internal mounting groove. The mounting groove has a limit groove 1 on both the upper and lower sides. The two limit grooves 1 are respectively engaged with two limit blocks 1. Two limit plates are fixedly connected to the right side of the housing 1.
[0012] Both limiting plates are inserted into the housing mechanism two. A square connecting frame one is fixedly connected to the outside of the right side of the housing one, and the square connecting frame one is connected to the housing mechanism two through four positioning slots.
[0013] The housing mechanism two includes a housing two, with two copper sleeves installed on both the upper and lower sides of the housing two. A square connecting frame two is fixedly connected to the outer left end of the housing two. The square connecting frame two is connected to a square connecting frame one with four positioning slots on its left end through four positioning blocks.
[0014] The second housing is inserted into the right end of the first housing through an insertion slot on its left side. Two limiting blocks are fixedly connected to the right side of the insertion slot. The two limiting blocks are respectively engaged with the two limiting slots. Eight internal threaded sleeves are fixedly connected to the left side of the second housing. The eight internal threaded sleeves are respectively threadedly connected to eight mounting limiting bolts. The relatively close ends of the eight mounting limiting bolts are respectively sleeved with eight circular limiting holes.
[0015] The second housing has a pin sleeve second fixedly installed inside. The pin sleeve second is inserted into two pins through two slots opened inside. The left end of the pin sleeve second overlaps with the right end of the first pin sleeve. Both the upper and lower ends of the pin sleeve second are fixedly connected to connecting blocks. Both connecting blocks are inserted into two limiting plates through limiting holes opened inside.
[0016] Both connecting blocks are inserted into four limiting rods through two circular limiting holes inside them. The right end of the second pin sleeve is provided with a second connecting groove, which is interconnected with the two second slots. Positioning strips are installed on the upper and lower sides of the second connecting groove.
[0017] The right end of the second housing has two threaded mounting holes. The right end of the second housing overlaps with the right side of the two copper busbar bodies. The left ends of the two copper busbar bodies are respectively inserted into the copper plate slots on both the front and rear sides of the second housing. The two copper plate slots are respectively connected to two through slots.
[0018] The technical effects achieved by this utility model are as follows:
[0019] This utility model, through the mutual cooperation of the second limiting block, the second limiting groove, the insertion groove, the first square connecting frame, the second square connecting frame, and the positioning block, can restrict the installation position between the first and second housings during the assembly process. Then, with the mutual cooperation of the internal threaded sleeve, the mounting limiting bolt, and the circular limiting hole, a quick connection and fixation process between the first and second housings can be achieved. Furthermore, during the connection and fixation process between the first and second housings, the mutual cooperation of the first limiting block, the first limiting groove, the connecting block, the limiting insert plate, the limiting insert hole, and the limiting rod can achieve the installation and fixation process of the first pin housing. This makes the assembly process of the device more convenient, and when the pin needs to be replaced, the device can be easily disassembled, thereby achieving the effect of convenient pin replacement. Attached Figure Description
[0020] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the main cross-section of this utility model;
[0022] Figure 3 This is a schematic diagram of the left-side stereoscopic structure of this utility model;
[0023] Figure 4 This is a front-view three-dimensional structural diagram of the copper busbar body in this utility model;
[0024] Figure 5 This is a front-view three-dimensional structural diagram of the pin in this utility model;
[0025] Figure 6 This is a front view cross-sectional three-dimensional structural schematic diagram of the shell mechanism in this utility model;
[0026] Figure 7 This is a right-view perspective three-dimensional structural diagram of the shell mechanism in this utility model;
[0027] Figure 8 This is a left-side perspective three-dimensional structural diagram of the shell mechanism in this utility model;
[0028] Figure 9This is a front view cross-sectional three-dimensional structural diagram of the pin housing in this utility model;
[0029] Figure 10 This is a front-view three-dimensional structural diagram of the pin housing in this utility model;
[0030] Figure 11 This is a schematic diagram of the three-dimensional structure of the shell mechanism in this utility model, shown in the main view section.
[0031] Figure 12 This is a left-side three-dimensional structural diagram of the shell mechanism two in this utility model;
[0032] Figure 13 This is a right-view three-dimensional structural diagram of the shell mechanism 2 in this utility model.
[0033] The attached diagram lists the components represented by each number as follows:
[0034] 1. Shell Mechanism One; 11. Shell One; 12. Mounting Slot; 13. Limiting Slot One; 14. Limiting Insert Plate; 15. Limiting Slot Two; 16. Circular Limiting Hole; 17. Square Connecting Frame One; 18. Through Slot; 2. Shell Mechanism Two; 21. Shell Two; 22. Square Connecting Frame Two; 23. Positioning Block; 24. Insertion Slot; 25. Limiting Block Two; 26. Pin Sleeve Two; 27. Slot Two; 28. Connecting Block; 29. Limiting Insertion Hole; 210. Internal Threaded Sleeve; 211. Mounting Limiting Bolt; 212. Connecting Slot Two; 213. Positioning Strip; 214. Copper Sleeve; 215. Copper Plate Slot; 216. Threaded Mounting Hole; 3. Connecting Slot One; 4. Pin; 5. Pin Sleeve One; 6. Limiting Block One; 7. Copper Busbar Body; 8. Slot One; 9. Limiting Rod. Detailed Implementation
[0035] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0036] like Figure 1-13As shown, a plastic inner shell for a plate end includes a shell mechanism 2. A shell mechanism 1 is located at the left end of the shell mechanism 2. Copper busbars 7 are located at both the front and rear ends of the shell mechanism 2. Two pins 4 are located inside the shell mechanism 2. The left side of each pin 4 is inserted into a pin sleeve 5 with two slots 8 inside. The pin sleeve 5 is located inside the shell mechanism 1. Through the cooperation between the shell mechanism 1, the shell mechanism 2, and the pin sleeve 5, the two pins 4 can be quickly installed and fixed. Furthermore, when a pin 4 is damaged, the device can be easily disassembled for replacement. The upper and lower ends of the pin housing 5 are fixedly connected to limit blocks 6. Both limit blocks 6 are engaged with the housing mechanism 1. The right ends of the two limit blocks 6 are fixedly connected to two limit rods 9. All four limit rods 9 are inserted into the housing mechanism 2. The right end of the pin housing 5 overlaps with the housing mechanism 2. The inside of the pin housing 5 is provided with a connecting groove 3, and the connecting groove 3 is interconnected with the two slots 8. The limit blocks 6 can restrict the installation position of the pin housing 5. The mutual cooperation between the limit rods 9 and the housing mechanism 2 can further restrict the installation position of the pin housing 5.
[0037] Furthermore, the housing mechanism 1 includes a housing 11, which has two through slots 18 inside. The right end of the housing 11 is inserted into the left end of the housing mechanism 2. The housing 11 is engaged with the left end of the housing mechanism 2 through two limiting slots 15 inside its right end. The right side of the housing 11 has eight circular limiting holes 16 inside, and all eight circular limiting holes 16 are sleeved with the left end of the housing mechanism 2. The housing 11 is sleeved with the pin sleeve 5 through an installation groove 12 inside. The installation groove 12 has limiting slots 13 on both the upper and lower sides inside, and the two limiting slots 13 are respectively engaged with... Two limiting blocks 16 are snapped together. Two limiting plates 14 are fixedly connected to the right side of the inside of the housing 11. Both limiting plates 14 are inserted into the housing mechanism 2. A square connecting frame 17 is fixedly connected to the outside of the right side of the housing 11. The square connecting frame 17 is connected to the housing mechanism 2 through four positioning slots. The installation slot 12, the limiting slot 13 and the limiting block 6 can quickly achieve the installation and positioning process of the pin sleeve 5. The mutual cooperation between the limiting plates 14 and the limiting slot 15 can limit the installation position of the housing 11.
[0038] Furthermore, the housing mechanism 2 includes a housing 21. Two copper sleeves 214 are installed on both the upper and lower sides of the housing 21. A square connecting frame 22 is fixedly connected to the outer left end of the housing 21. The square connecting frame 22 is connected to a square connecting frame 17 with four positioning slots on its left end via four positioning blocks 23. The housing 21 is inserted into the right end of the housing 11 via an insertion slot 24 on its left side. Two limiting blocks 25 are fixedly connected to the right side of the insertion slot 24, and the two limiting blocks 25 are respectively engaged with the two limiting slots 25. A square connecting frame 21 is fixedly connected to the left side of the housing 21. Eight internal threaded sleeves 210 are threadedly connected to eight mounting limit bolts 211. The relatively close ends of the eight mounting limit bolts 211 are respectively sleeved with eight circular limit holes 16. Through the cooperation of the square connecting frame 17, square connecting frame 22, positioning block 23, mounting limit bolts 211 and circular limit holes 16, the connection and fixing process between housing 11 and housing 21 can be quickly achieved. At the same time, the disassembly of the device can also be quickly achieved, making the installation and disassembly process of the device more convenient and facilitating the maintenance of the device by the operator.
[0039] Inside the housing 21, a pin housing 26 is fixedly installed. The pin housing 26 is inserted into two pins 4 through two slots 27. The left end of the pin housing 26 overlaps with the right end of the pin housing 5. Connecting blocks 28 are fixedly connected to both the upper and lower ends of the pin housing 26. Both connecting blocks 28 are inserted into two limiting plates 14 through limiting holes 29. Both connecting blocks 28 are inserted into four limiting rods 9 through two circular holes. A connecting groove 212 is provided inside the right end of the pin housing 26, and the connecting groove 212 is interconnected with the two slots 27. Fixed rods are installed on both the upper and lower sides inside the connecting groove 212. The housing 21 has two threaded mounting holes 216 inside the right end. The right end of the housing 21 overlaps with the right side of the two copper busbar bodies 7. The left ends of the two copper busbar bodies 7 are respectively inserted into the copper plate slots 215 opened on both the front and rear sides inside the housing 21. The two copper plate slots 215 are respectively connected to the two through slots 18. The connection between the connecting block 28, the limiting rod 9 and the limiting block 6 can achieve the connection between the pin sleeve 5 and the pin sleeve 26, and can ensure the stability of the pin sleeve 5 after installation. The threaded mounting holes 216 can quickly install and fix the two copper busbar bodies 7 onto the housing 21.
[0040] The working principle of this utility model is as follows:
[0041] When the device needs to be disassembled to replace the pins 4, the eight mounting limit bolts 211 are rotated to move them out of the eight circular limit holes 16 respectively. At this time, the housing 11 can be easily removed from the housing 21 by pulling it to the left, thus exposing the two pins 4, thereby completing the disassembly process of the device and facilitating the replacement of the pins 4. Correspondingly, after the replacement of the pins 4 is completed, the device is connected by the square connecting frame 17, the square connecting frame 22, the positioning block 23, the mounting groove 12, and the limit groove 1. 13. The mutual cooperation between the limiting block 16, the limiting insert plate 14, and the limiting groove 25 installs the housing 11 onto the housing 21. During this process, the cooperation of the limiting block 16, the limiting groove 13, the connecting block 28, and the limiting rod 9 can quickly achieve the fixing effect on the pin sleeve 5. Then, by rotating the eight mounting limiting bolts 211, their relatively close ends are inserted into the eight corresponding circular limiting holes 16. At this time, the assembly process of the device can be realized, making the assembly and disassembly of the device more convenient.
[0042] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A plastic inner shell at the end of a plate, comprising a shell mechanism two (2), characterized in that: The left end of the housing mechanism two (2) is provided with the housing mechanism one (1). Both the front and rear ends of the housing mechanism two (2) are provided with copper busbar bodies (7). The inside of the housing mechanism two (2) is provided with two pins (4). The left side of the two pins (4) is inserted into the pin sleeve one (5) which has two slots one (8) inside. The pin sleeve one (5) is located inside the housing mechanism one (1). The upper and lower ends of the first pin sleeve (5) are fixedly connected to the first limiting block (6), and the two first limiting blocks (6) are engaged with the first housing mechanism (1). The right ends of the two first limiting blocks (6) are fixedly connected to two limiting rods (9), and the four limiting rods (9) are engaged with the second housing mechanism (2). The right end of the first pin sleeve (5) overlaps with the second housing mechanism (2).
2. The plate-end plastic inner shell according to claim 1, characterized in that: The insert sleeve (5) has a connecting groove (3) inside, and the connecting groove (3) is interconnected with the two slots (8).
3. The plate-end plastic inner shell according to claim 1, characterized in that: The housing mechanism one (1) includes a housing one (11), which has two through slots (18) inside. The right end of the housing one (11) is inserted into the left end of the housing mechanism two (2). The housing one (11) is connected to the left end of the housing mechanism two (2) through two limiting slots (15) inside its right end. The housing one (11) has eight circular limiting holes (16) inside its right side, and all eight circular limiting holes (16) are sleeved with the left end of the housing mechanism two (2).
4. The plate-end plastic inner shell according to claim 3, characterized in that: The housing (11) is connected to the pin sleeve (5) through the mounting groove (12) inside. The mounting groove (12) has limit grooves (13) on both the upper and lower sides. The two limit grooves (13) are respectively engaged with two limit blocks (6). Two limit plates (14) are fixedly connected to the right side inside the housing (11).
5. The plate-end plastic inner shell according to claim 4, characterized in that: Both of the limiting plates (14) are inserted into the housing mechanism two (2). A square connecting frame one (17) is fixedly connected to the outside of the right side of the housing one (11), and the square connecting frame one (17) is connected to the housing mechanism two (2) through four positioning slots opened on it.
6. The plate-end plastic inner shell according to claim 5, characterized in that: The housing mechanism two (2) includes a housing two (21). Two copper sleeves (214) are installed on the upper and lower sides of the housing two (21). A square connecting frame two (22) is fixedly connected to the outer side of the left end of the housing two (21). The square connecting frame two (22) is connected to the square connecting frame one (17) with four positioning slots on its left end through four positioning blocks (23).
7. The plate-end plastic inner shell according to claim 6, characterized in that: The second housing (21) is inserted into the right end of the first housing (11) through a slot (24) opened inside its left side. Two limiting blocks (25) are fixedly connected inside the right side of the slot (24). The two limiting blocks (25) are respectively engaged with the two limiting slots (15). Eight internal threaded sleeves (210) are fixedly connected to the left side of the second housing (21). The eight internal threaded sleeves (210) are respectively threadedly connected to eight mounting limiting bolts (211). The relatively close ends of the eight mounting limiting bolts (211) are respectively sleeved with eight circular limiting holes (16).
8. The plate-end plastic inner shell according to claim 6, characterized in that: The second housing (21) has a pin housing (26) fixedly installed inside. The pin housing (26) is connected to two pins (4) through two slots (27) opened inside. The left end of the pin housing (26) overlaps with the right end of the first pin housing (5). Both the upper and lower ends of the pin housing (26) are fixedly connected to connecting blocks (28). Both connecting blocks (28) are connected to two limiting plates (14) through limiting insertion holes (29) opened inside.
9. The plate-end plastic inner shell according to claim 8, characterized in that: Both connecting blocks (28) are connected to four limiting rods (9) through two circular limiting holes opened inside them. The right end of the pin sleeve (26) is provided with a connecting groove (212), and the connecting groove (212) is connected to the two slots (27). Positioning strips (213) are installed on the upper and lower sides of the connecting groove (212).
10. A plate-end plastic inner shell according to claim 6, characterized in that: The right end of the housing (21) has two threaded mounting holes (216). The right end of the housing (21) overlaps with the right side of the two copper busbar bodies (7). The left ends of the two copper busbar bodies (7) are respectively inserted into the copper plate slots (215) opened on both the front and rear sides of the housing (21). The two copper plate slots (215) are respectively connected to the two through slots (18).