Cylinder-penetrating terminal structure

Abstract

The utility model provides a cylinder piece penetrating terminal structure which comprises pins and a support, a plurality of installation grooves are arranged in the support, one end of each installation groove is provided with an opening, one end of each pin is arranged in the corresponding installation groove, and the other end of each pin penetrates through the corresponding opening and extends out of the support. The pin is provided with a first connecting part corresponding to the opening, at least one end of the opening is provided with a second connecting part, and the first connecting part and the second connecting part are integrally formed and connected; and after injection molding, the middle part is positioned in the connecting block, so that the tearing opening is also wrapped by the connecting block, and the design ensures that the tearing opening is not directly exposed in the external environment, thereby avoiding the corrosion and oxidation problems caused by contact with moisture, oxygen or other corrosive media.

Description

Technical Field

[0001] The utility model belongs to the field of connectors, and in particular relates to a cylinder-penetrating terminal structure. Background Art

[0002] Cylinder plugs are components used in the field of engine accessories technology, primarily for connecting the internal and external wiring harnesses of the engine. Cylinder plug terminal products on the market must meet the requirements of oil resistance, high temperature resistance, and waterproof sealing to meet the requirements of use in harsh working conditions.

[0003] Currently, most terminals on the market are loose pins, that is, the terminals are individual pins during the production process. When the connector shell is injected, the pins need to be manually placed into the mold core one by one, resulting in low production efficiency and difficulty in adapting to the modern manufacturing industry's demand for high efficiency and high automation. At the same time, manual operation increases the possibility of errors, resulting in problems such as missing pins and inconsistent pin heights in the product, affecting the quality of the final product. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] The utility model provides a cylinder-penetrating terminal structure, which aims to solve the problems of low pin assembly efficiency and high error rate during the connector injection molding process.

[0006] (2) Technical solution

[0007] The utility model provides a through-cylinder terminal structure, comprising a pin and a bracket, wherein the bracket is provided with a plurality of mounting slots, one end of the mounting slot is provided with an opening, one end of the pin is arranged in the mounting slot, and the other end passes through the opening and extends to the outside of the bracket; the pin is provided with a first connecting portion corresponding to the opening, and at least one end of the opening is provided with a second connecting portion, and the first connecting portion and the second connecting portion are integrally formed and connected;

[0008] A concave surface is provided at the connection between the first connecting part and the second connecting part, and the bracket is bent along the concave surface to break and separate the first connecting part and form a tear at the break, thereby separating the bracket from the pin needle; after injection molding, a connecting block is provided on the pin needle, and the tear on the first connecting part is arranged in the connecting block.

[0009] Furthermore, the first connecting portion is a step structure and includes two connecting arms, and the second connecting portions at both ends of the opening correspond one-to-one to the two connecting arms of the first connecting portion respectively.

[0010] Furthermore, the concave surface is provided on the front and rear end surfaces of the connection between the first connecting portion and the second connecting portion.

[0011] Furthermore, the multiple concave surfaces on the same end surface where the first connecting portion and the second connecting portion are connected are all at the same horizontal height.

[0012] Furthermore, the length direction of the pin needle is perpendicular to the extension direction of the concave surface.

[0013] Furthermore, the pin needle is divided into an upper part, a middle part and a lower part, the upper part corresponds to the installation groove, the middle part at least partially corresponds to the second connecting part, and the lower part is arranged outside the opening.

[0014] Furthermore, after injection molding, the middle portion is located within the connecting block.

[0015] Furthermore, a connection hole is provided on the middle portion of the pin needle, and the connection block at least partially passes through the connection hole.

[0016] Furthermore, there are two connecting holes on the middle portion and they are arranged along the length direction of the pin needle.

[0017] Furthermore, the bracket is provided with a plurality of through holes, and the through holes are respectively arranged corresponding to the mounting slots above and below.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The bracket is separated from the pin by bending the entire row of folding materials. During the bending process, the lower part of the pin is inserted into the separator, so that the first connecting part and the second connecting part are broken and separated, thereby obtaining uniform and consistent pins, which is convenient for subsequent injection molding operations. This avoids the tedious process of manually placing pins one by one into the separator in traditional production, reduces the problems of missing pins and incorrect pin placement, and improves production efficiency and assembly accuracy.

[0020] After injection molding, the tearing opening of the pin is located inside the connecting block, ensuring that the tearing opening is not directly exposed to the external environment, thereby avoiding corrosion and oxidation problems caused by contact with moisture, oxygen or other corrosive media. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2 This is a schematic diagram of the separation of the bracket and the pin of the present invention.

[0023] Figure 3It is a cross-sectional view of the present utility model.

[0024] Figure 4 It is a bending schematic diagram of the utility model.

[0025] Figure 5 It is a schematic diagram of the bending effect of the present invention.

[0026] Figure 6 This is the effect diagram after injection molding of the utility model.

[0027] Figure 7 This is a schematic diagram of the bracket and the connecting part of the present invention being completely separated.

[0028] Figure markings: 1-pin needle, 11-first connecting part, 12-connecting arm, 13-connecting block, 14-connecting hole, 15-upper part, 16-middle part, 17-lower part, 2-bracket, 21-mounting slot, 22-opening, 23-second connecting part, 24-through hole, 3-concave surface, 31-tear hole, 4-separating piece, 41-through hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] like Figure 1-7 As shown, the utility model provides a through-cylinder terminal structure, which uses a stamping process to process metal material into a bracket 2 with a predetermined shape and a plurality of pin needles 1 integrally formed therewith. The bracket 2 is provided with a plurality of mounting slots 21, and each pin needle 1 corresponds to a mounting slot 21, ensuring the precise fit between the pin needle 1 and the bracket 2. One end of the mounting slot 21 is provided with an opening 22, and one end of the pin needle 1 is arranged in the mounting slot 21, and the other end extends to the outside of the bracket 2 through the opening 22; the pin needle 1 is provided with a first connecting portion 11 corresponding to the opening 22, and at least one end of the opening 22 is provided with a second connecting portion 23, and the first connecting portion 11 and the second connecting portion 23 are integrally formed and connected;

[0031] Among them, a concave surface 3 is provided at the connection between the first connecting portion 11 and the second connecting portion 23, and the bracket 2 is bent along the direction of the concave surface 3, so that the first connecting portion 11 and the second connecting portion 23 are broken and separated, and a tear 31 is formed at the break, thereby separating the bracket 2 from the pin needle 1; after injection molding, a connecting block 13 is provided on the pin needle 1, and the tear 31 on the first connecting portion 11 is set in the connecting block 13; through the above steps, the tedious process of manually placing the pin needles 1 one by one into the separating piece 4 in traditional production is avoided, the problems of missing pins and pin placement errors are reduced, and production efficiency and assembly accuracy are improved.

[0032] like Figure 3-5 As shown, the first connecting portion 11 is a step structure and includes two connecting arms 12. The second connecting portions 23 at both ends of the opening 22 correspond one-to-one to the two connecting arms 12 of the first connecting portion 11. This structural design provides better mechanical support and facilitates one-piece molding during stamping, ensuring precise alignment of the pin needle 1 and the bracket 2 during the stamping process.

[0033] Furthermore, the concave surface 3 is provided on the front and rear end surfaces of the connection between the first connecting part 11 and the second connecting part 23. The bidirectional design of the concave surface 3 makes the bending operation more intuitive and simple. The operator can bend quickly without worrying about the direction problem, which can significantly reduce the operation time and improve production efficiency. At the same time, this design does not require the identification of direction, reduces the risk of bending failure or product damage due to wrong direction, and improves the product yield.

[0034] Furthermore, in order to improve production efficiency, the multiple concave surfaces 3 on the same end face where the first connecting part 11 and the second connecting part 23 are connected are at the same horizontal height, which can make it easier to identify and locate the bending position and perform precise operations; in the subsequent assembly process, the consistent concave surface 3 design makes the separation of the bracket 2 and the pin needle 1 more accurate, thereby improving the accuracy of assembly.

[0035] like Figure 6 As shown, the length direction of the pin needle 1 is perpendicular to the extension direction of the concave surface 3; this provides a clear, predetermined breaking point during the bending operation, making it easier to identify and locate the bending point, facilitating the bending operation, and separating the bracket 2 from the pin needle 1. The bending position is more accurate and consistent, thereby improving production efficiency.

[0036] like Figure 5-6As shown, the pin needle 1 is divided into an upper portion 15, a middle portion 16 and a lower portion 17. The upper portion 15 corresponds to the mounting groove 21, the middle portion 16 at least partially corresponds to the second connecting portion 23, and the lower portion 17 is arranged outside the opening 22. The separator 4 has a plurality of through holes 41 adapted to the lower portion 17 of the pin needle 1. During the bending process, the lower portion 17 of the pin needle 1 is inserted into the separator 4. The bending separates the first connecting portion 11 from the second connecting portion 23 to form a tear 31, thereby separating the bracket 2 from the pin needle 1, obtaining a uniform and consistent pin needle 1, which facilitates subsequent injection molding operations. The division of the upper portion 15, the middle portion 16 and the lower portion 17 makes the injection molding process of the pin needle 1 more convenient.

[0037] like Figure 6 As shown, after injection molding, the middle portion 16 is located inside the connecting block 13, so that the tearing opening 31 is also wrapped inside the connecting block 13. This design ensures that the tearing opening 31 will not be directly exposed to the external environment, thereby avoiding corrosion and oxidation problems caused by contact with moisture, oxygen or other corrosive media; at the same time, through the injection molding process, the connecting block 13 is tightly combined with the middle portion 16 of the pin needle 1 to form a sealed environment, which helps to improve the durability and service life of the entire cylinder terminal structure.

[0038] Furthermore, in order to make the connection between the connecting block 13 and the pin needle 1 more firmly, a connecting hole 14 is provided on the middle part 16 of the pin needle 1. During injection molding, the injection plastic used to inject the connecting block 13 flows into and passes through the connecting hole 14. After cooling and fixing, the interior of the connecting block 13 passes through the connecting hole 14 to fix the pin needle 1; the design of the connecting hole 14 makes it difficult for the connecting block 13 to slip off the pin needle 1, thereby better wrapping the tearing hole 31 inside.

[0039] Furthermore, in order to maintain the precise position and alignment of the pin needle 1 and prevent the pin needle 1 from shaking in the connecting block 13, two connecting holes 14 are provided on the middle portion 16 and are arranged along the length direction of the pin needle 1, so that the two connecting holes 14 are respectively passed through the interior of the connecting block 13 to prevent the pin needle 1 from deflecting and shaking.

[0040] like Figure 7 As shown, the bracket 2 is provided with a plurality of through holes 24, which can serve as positioning features during the stamping process, facilitate fixation during the stamping process and subsequent packaging, and facilitate the operator to take it. The through holes 24 are respectively arranged in correspondence with the mounting grooves 21 above and below, ensuring the correct positioning of the pin needle 1 in the bracket 2, which helps to improve accuracy and consistency.

[0041] The following is a detailed description of the working principle of the utility model;

[0042] First, a metal material is processed into a bracket 2 of a predetermined shape and several pin pins 1 integrally formed therewith using a stamping process. The bracket 2 is provided with several mounting slots 21, one for each pin pin 1, ensuring precise fit between the pin pin 1 and the bracket 2. One end of each mounting slot 21 is provided with an opening 22. One end of each pin pin 1 is disposed within the mounting slot 21, and the other end extends through the opening 22 to the outside of the bracket 2. The pin pin 1 is provided with a first connecting portion 11 corresponding to the opening 22. A second connecting portion 23 is provided at at least one end of the opening 22. The first connecting portion 11 and the second connecting portion 23 are integrally connected.

[0043] Among them, a concave surface 3 is provided at the connection between the first connecting part 11 and the second connecting part 23, and the bracket 2 is bent along the direction of the concave surface 3. During the bending process, the lower part 17 of the pin needle 1 is inserted into the separator 4, so that the first connecting part 11 and the second connecting part 23 are broken and separated, and a tear 31 is formed at the break, thereby separating the bracket 2 from the pin needle 1 to obtain a uniform and consistent pin needle 1; then the middle part 16 of the pin needle 1 is injection molded; after the injection molding is completed, the middle part 16 is located in the connecting block 13, so that the tear 31 is also wrapped in the connecting block 13, thereby ensuring convenient assembly and good anti-oxidation and corrosion resistance; through the above steps, the tedious process of manually placing the pin needles 1 one by one into the separator 4 in traditional production is avoided, the problems of missing pins and incorrect placement of the pin needles 1 are reduced, and the production efficiency and assembly accuracy are improved.

[0044] The innovation of the present invention lies in the use of a stamping process to process metal material into a bracket 2 having a predetermined shape and a plurality of pin pins 1 integrally formed therewith. The bracket 2 is separated from the pin pins 1 by bending the entire row of folds. During the bending process, the lower portion 17 of the pin pin 1 is inserted into the separator 4, causing the first connecting portion 11 to be broken and separated from the second connecting portion 23, and forming a tear 31 at the fracture site, resulting in uniform and consistent pin pins 1, which facilitates subsequent injection molding operations. This avoids the tedious process of manually placing the pin pins 1 one by one into the separator 4 in traditional production, reduces the problems of pin leakage and incorrect placement of the pin pins 1, and improves production efficiency and assembly accuracy.

[0045] After injection molding, the middle portion 16 is located inside the connecting block 13, so that the tearing opening 31 is also wrapped inside the connecting block 13. This design ensures that the tearing opening 31 will not be directly exposed to the external environment, thereby avoiding corrosion and oxidation problems caused by contact with moisture, oxygen or other corrosive media.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A cylinder terminal structure, characterized in that: The invention comprises a pin needle (1) and a bracket (2), wherein a plurality of mounting grooves (21) are provided in the bracket (2), one end of the mounting groove (21) is provided with an opening (22), one end of the pin needle (1) is arranged in the mounting groove (21), and the other end passes through the opening (22) and extends to the outside of the bracket (2); the pin needle (1) is provided with a first connecting portion (11) corresponding to the opening (22), and at least one end of the opening (22) is provided with a second connecting portion (23), and the first connecting portion (11) and the second connecting portion (23) are integrally formed and connected; A concave surface (3) is provided at the connection between the first connecting portion (11) and the second connecting portion (23), and the bracket (2) is bent along the direction of the concave surface (3), so that the first connecting portion (11) and the second connecting portion (23) are broken and separated, and a tearing hole (31) is formed at the breaking position, thereby separating the bracket (2) from the pin needle (1); after injection molding, a connecting block (13) is provided on the pin needle (1), and the tearing hole (31) on the first connecting portion (11) is arranged in the connecting block (13).

2. A cylinder-piercing terminal structure according to claim 1, characterized in that: The first connecting portion (11) is a step structure and includes two connecting arms (12), and the second connecting portions (23) at both ends of the opening (22) correspond one-to-one to the two connecting arms (12) of the first connecting portion (11).

3. A cylinder-piercing terminal structure according to claim 2, characterized in that: The concave surface (3) is provided on both the front and rear end surfaces of the connection between the first connecting portion (11) and the second connecting portion (23).

4. A cylinder-piercing terminal structure according to claim 3, characterized in that: The multiple concave surfaces (3) on the same end surface where the first connecting portion (11) and the second connecting portion (23) are connected are all at the same horizontal height.

5. The terminal structure of a cylinder-piercing member according to claim 1, characterized in that: The length direction of the pin needle (1) is perpendicular to the extension direction of the concave surface (3).

6. The cylinder-piercing terminal structure according to claim 1, characterized in that: The pin (1) is divided into an upper portion (15), a middle portion (16) and a lower portion (17), wherein the upper portion (15) corresponds to the mounting groove (21), the middle portion (16) at least partially corresponds to the second connecting portion (23), and the lower portion (17) is arranged outside the opening (22).

7. A cylinder-piercing terminal structure according to claim 6, characterized in that: After injection molding, the middle portion (16) is located within the connecting block (13).

8. The cylinder-piercing terminal structure according to claim 7, characterized in that: A connection hole (14) is provided on the middle portion (16) of the pin needle (1), and the connection block (13) at least partially passes through the connection hole (14).

9. The cylinder-piercing terminal structure according to claim 8, characterized in that: There are two connecting holes (14) on the middle portion (16) and they are arranged along the length direction of the pin needle (1).

10. The cylinder-piercing terminal structure according to claim 1, characterized in that: The bracket (2) is provided with a plurality of through holes (24), and the through holes (24) are respectively arranged correspondingly to the mounting slots (21) above and below.

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