Cold-press terminal light weight protective sleeve
The cold-pressed terminal protection sleeve with its split-type clamping block design solves the problem of cumbersome operation in existing technologies, enabling fast and reliable cable and terminal connection, improving operational efficiency and sealing performance, and making it suitable for vibration environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HUAXI TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-12
AI Technical Summary
The existing cold-pressed terminal protection sleeve has a cumbersome cable connection operation, which is especially unsuitable for situations with a large workload.
The lightweight protective sleeve features a split clamping block design, including a retaining ring, a positioning ring, a compression ring, and a hinge. It achieves quick and reliable cable and terminal connections through a rotating connection and snap-fit structure, simplifying the operation process.
It enables rapid alignment and reliable fixing of cables and terminals, reduces the complexity of manual operation, improves operating efficiency and sealing performance, is suitable for vibration environments, and extends service life.
Smart Images

Figure CN224355499U_ABST
Abstract
Description
Technical Field
[0001] This specification relates to one or more embodiments in the field of cold-pressed terminal technology, and more particularly to a lightweight protective sleeve for cold-pressed terminals. Background Technology
[0002] A cold-pressed terminal is an electronic connector that connects wires to conductive parts through mechanical pressure rather than welding. It belongs to the category of electrical accessories and its name comes from the "cold pressing" process, which means that the crimping can be completed without heating.
[0003] The existing technology has a Chinese utility model patent with application number 202321335867 and patent name: "A Terminal Insulation Protective Sleeve". It describes that "a sealing column is opened and the outside is connected to a screw sleeve by a thread. The cavity is provided with a fixed platform and a fixed sleeve connected by a threaded hole and a screw. The upper shell and the lower shell are provided with a support column that is inserted. The above components cooperate with each other, and the other components remain stable after one component is damaged." However, the cavity inside the sealing column described in the patent has two fixed sleeves. The fixed sleeves are fixed by screws on both sides. The operation steps are cumbersome. The internal screws need to be tightened first and then the external screw sleeves need to be tightened. It is not suitable for use in situations with a large workload. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a lightweight protective sleeve for cold-pressed terminals, so as to solve the problem of simplifying the internal cable connection of the terminal protective sleeve in the prior art.
[0005] To achieve the above objectives, this utility model provides a lightweight protective sleeve for cold-pressed terminals, including terminals and an externally fixed protective sleeve for the terminals. The protective sleeve includes a fixing ring, a positioning ring, and a compression ring.
[0006] The compression ring is fixedly connected to a clamping block inside;
[0007] The clamping block includes a first clamping block and a second clamping block.
[0008] Preferably, the protective sleeve is externally connected to a hinge;
[0009] The hinges are located at the top and bottom of the protective sleeve, and the two protective sleeves are connected by the hinges.
[0010] Preferably, the terminal includes a head, the bottom of which is fixedly connected to the connecting piece;
[0011] The connecting piece is located in the middle of the first clamping block and the second clamping block.
[0012] Preferably, an extension sleeve is fixedly connected inside the protective sleeve, and the extension sleeve extends from the bottom of the protective sleeve.
[0013] Preferably, a protrusion is fixedly connected to the opening of the protective sleeve, and a groove is formed at the corresponding position of the protrusion, so that the two protective sleeves are snapped together by the groove and the protrusion.
[0014] Preferably, the compression ring is externally fixed with a reinforcing strip.
[0015] As can be seen from the above, the lightweight protective sleeve for cold-pressed terminals provided by this utility model achieves a tight connection between the cable and the terminal by setting an extrusion ring in the middle of the protective sleeve and the synergistic clamping action of the first and second clamping blocks inside the extrusion ring. This simplifies the connection process, allows the cable and the terminal to be quickly aligned, and enables reliable fixing to be completed in a single operation, reducing the complexity of manual operation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in one or more embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a top view of the overall structure of this utility model;
[0019] Figure 3 This is a front view of the overall structure of this utility model;
[0020] Figure 4 This is a cross-sectional view of the present invention;
[0021] Figure 5 This is a three-dimensional cross-sectional view of the protective sleeve of this utility model.
[0022] In the diagram: 1. Terminal; 11. End; 12. Connecting piece; 2. Protective sleeve; 21. Extension sleeve; 22. Fixing ring; 23. Positioning ring; 24. Extrusion ring; 25. First clamping block; 26. Second clamping block; 27. Groove; 28. Protrusion; 29. Hinge; 30. Reinforcing strip. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] Example 1:
[0026] like Figure 1 , Figure 2 and Figure 4 As shown, a lightweight protective sleeve for cold-pressed terminals is provided, including a terminal 1 and a protective sleeve 2 fixedly connected to the outside of the terminal 1. The protective sleeve 2 includes a fixing ring 22, a positioning ring 23 and a compression ring 24. The fixing ring 22 ensures a stable connection between the protective sleeve 2 and the terminal 1 and prevents slippage. The positioning ring 23 provides an axial alignment function and simplifies the installation process. The compression ring 24 evenly distributes pressure through a clamping block to prevent the terminal from being deformed due to concentrated force.
[0027] The compression ring 24 is internally fixedly connected to a clamping block;
[0028] The clamping block includes a first clamping block 25 and a second clamping block 26. The split clamping block design reduces redundant materials and lowers the overall weight of the protective sleeve, while maintaining the clamping strength of the terminal. In addition, the split clamping block can flexibly adjust the clamping force according to the terminal size to adapt to different specifications of terminals.
[0029] The protective sleeve 2 is externally connected to hinge 29;
[0030] The hinge 29 is located at the top and bottom of the protective sleeve 2, and the two protective sleeves 2 are rotatably connected by the hinge 29.
[0031] The hinge 29 structure allows the protective sleeve 2 to rotate around the axis for opening and closing, enabling the inspection or replacement of terminal 1 without complete disassembly. This achieves quick opening and closing and maintenance, which greatly improves operational efficiency. The two protective sleeves connected by the hinge always remain as one unit, which can avoid the risk of parts falling out and prevent loss. It also reduces the additional structure required by traditional bolt or snap-fit connections, further reducing weight.
[0032] The opening of the protective sleeve 2 is fixedly connected to the protrusion 28, and the corresponding position of the protrusion 28 is provided with the groove 27. The two protective sleeves 2 are snapped together by the groove 27 and the protrusion 28.
[0033] The protective cover 2 has a protrusion 28 and a groove 27 at the opening, which engage with the hinge 29 to achieve closure and locking. The hinge 29 provides rotational freedom, and the protrusion 28 and the groove 27 achieve mechanical engagement to ensure that it is firmly closed and will not loosen. It is suitable for vibration environments, such as automobiles and industrial equipment, to prevent the protective cover from being opened accidentally.
[0034] The snap-fit structure allows for easy opening and closing without tools, simplifying installation and maintenance. The lugs 28 and grooves 27 interlock tightly to form a physical barrier, which helps to improve dustproof and splashproof performance and enhances sealing.
[0035] The external fixed connection of the extrusion ring 24 with the reinforcing strip 30 is beneficial to improve the rigidity of the extrusion ring 24, which can resist external impact or high-frequency vibration, improve the deformation resistance, extend the service life of the protective sleeve, prevent structural fatigue or deformation caused by long-term pressure, and the local reinforcement design avoids the overall material thickness, while maintaining lightweight while specifically strengthening key stress parts.
[0036] Example 2:
[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a lightweight protective sleeve for cold-pressed terminals is provided, including a terminal 1 and a protective sleeve 2 fixedly connected to the outside of the terminal 1. The protective sleeve 2 includes a fixing ring 22, a positioning ring 23 and a compression ring 24. The fixing ring 22 ensures a stable connection between the protective sleeve 2 and the terminal 1 and prevents slippage. The positioning ring 23 provides an axial alignment function and simplifies the installation process. The compression ring 24 evenly distributes pressure through a clamping block to prevent the terminal from being deformed due to concentrated force.
[0038] The compression ring 24 is internally fixedly connected to a clamping block;
[0039] The clamping block includes a first clamping block 25 and a second clamping block 26. The split clamping block design reduces redundant materials and lowers the overall weight of the protective sleeve, while maintaining the clamping strength of the terminal. In addition, the split clamping block can flexibly adjust the clamping force according to the terminal size to adapt to different specifications of terminals.
[0040] The protective sleeve 2 is externally connected to hinge 29;
[0041] The hinge 29 is located at the top and bottom of the protective sleeve 2, and the two protective sleeves 2 are rotatably connected by the hinge 29.
[0042] The hinge 29 structure allows the protective sleeve 2 to rotate around the axis for opening and closing, enabling the inspection or replacement of terminal 1 without complete disassembly. This achieves quick opening and closing and maintenance, which greatly improves operational efficiency. The two protective sleeves connected by the hinge always remain as one unit, which can avoid the risk of parts falling out and prevent loss. It also reduces the additional structure required by traditional bolt or snap-fit connections, further reducing weight.
[0043] The terminal 1 includes a head 11, and the bottom of the head 11 is fixedly connected to the connecting piece 12;
[0044] The connecting piece 12 is located in the middle of the first clamping block 25 and the second clamping block 26. The connecting piece 12 is clamped in the middle by the clamping block, so that the pressure is evenly distributed. This can avoid the bending or breakage of the terminal 1 caused by unilateral force, optimize the mechanical properties, and the connecting piece 12 is in close contact with the clamping block, effectively reducing the contact resistance, reducing heat generation and energy loss, and improving the conductivity stability. In addition, the connecting piece is embedded in the middle of the clamping block, saving lateral space, which is suitable for compact equipment applications and has a high space utilization rate.
[0045] The opening of the protective sleeve 2 is fixedly connected to the protrusion 28, and the corresponding position of the protrusion 28 is provided with the groove 27. The two protective sleeves 2 are snapped together by the groove 27 and the protrusion 28.
[0046] The protective cover 2 has a protrusion 28 and a groove 27 at the opening, which engage with the hinge 29 to achieve closure and locking. The hinge 29 provides rotational freedom, and the protrusion 28 and the groove 27 achieve mechanical engagement to ensure that it is firmly closed and will not loosen. It is suitable for vibration environments, such as automobiles and industrial equipment, to prevent the protective cover from being opened accidentally.
[0047] The snap-fit structure allows for easy opening and closing without tools, simplifying installation and maintenance. The lugs 28 and grooves 27 interlock tightly to form a physical barrier, which helps to improve dustproof and splashproof performance and enhances sealing.
[0048] The external fixed connection of the extrusion ring 24 with the reinforcing strip 30 is beneficial to improve the rigidity of the extrusion ring 24, which can resist external impact or high-frequency vibration, improve the deformation resistance, extend the service life of the protective sleeve, prevent structural fatigue or deformation caused by long-term pressure, and the local reinforcement design avoids the overall material thickness, while maintaining lightweight while specifically strengthening key stress parts.
[0049] Example 3:
[0050] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a lightweight protective sleeve for cold-pressed terminals is provided, including a terminal 1 and a protective sleeve 2 fixedly connected to the outside of the terminal 1. The protective sleeve 2 includes a fixing ring 22, a positioning ring 23 and a compression ring 24. The fixing ring 22 ensures a stable connection between the protective sleeve 2 and the terminal 1 and prevents slippage. The positioning ring 23 provides an axial alignment function and simplifies the installation process. The compression ring 24 evenly distributes pressure through a clamping block to prevent the terminal from being deformed due to concentrated force.
[0051] The compression ring 24 is internally fixedly connected to a clamping block;
[0052] The clamping block includes a first clamping block 25 and a second clamping block 26. The split clamping block design reduces redundant materials and lowers the overall weight of the protective sleeve, while maintaining the clamping strength of the terminal. In addition, the split clamping block can flexibly adjust the clamping force according to the terminal size to adapt to different specifications of terminals.
[0053] The protective sleeve 2 is externally connected to hinge 29;
[0054] The hinge 29 is located at the top and bottom of the protective sleeve 2, and the two protective sleeves 2 are rotatably connected by the hinge 29.
[0055] The hinge 29 structure allows the protective sleeve 2 to rotate around the axis for opening and closing, enabling the inspection or replacement of terminal 1 without complete disassembly. This achieves quick opening and closing and maintenance, which greatly improves operational efficiency. The two protective sleeves connected by the hinge always remain as one unit, which can avoid the risk of parts falling out and prevent loss. It also reduces the additional structure required by traditional bolt or snap-fit connections, further reducing weight.
[0056] The terminal 1 includes a head 11, and the bottom of the head 11 is fixedly connected to the connecting piece 12;
[0057] The connecting piece 12 is located in the middle of the first clamping block 25 and the second clamping block 26. The connecting piece 12 is clamped in the middle by the clamping block, so that the pressure is evenly distributed. This can avoid the bending or breakage of the terminal 1 caused by unilateral force, optimize the mechanical properties, and the connecting piece 12 is in close contact with the clamping block, effectively reducing the contact resistance, reducing heat generation and energy loss, and improving the conductivity stability. In addition, the connecting piece is embedded in the middle of the clamping block, saving lateral space, which is suitable for compact equipment applications and has a high space utilization rate.
[0058] The protective sleeve 2 is internally fixedly connected to the extension sleeve 21, which extends from the bottom of the protective sleeve 2. The extension sleeve 21 covers the connection between the terminal 1 and the cable, preventing damage caused by external friction, bending or liquid intrusion. The flexible design of the extension sleeve can absorb the stress generated by cable vibration or pulling, protect the connection stability between the terminal 1 and the cable, and provide stress buffering. In addition, the extension sleeve adopts a thin-walled or hollow structure, which expands the protection range without significantly increasing the weight.
[0059] The opening of the protective sleeve 2 is fixedly connected to the protrusion 28, and the corresponding position of the protrusion 28 is provided with the groove 27. The two protective sleeves 2 are snapped together by the groove 27 and the protrusion 28.
[0060] The protective cover 2 has a protrusion 28 and a groove 27 at the opening, which engage with the hinge 29 to achieve closure and locking. The hinge 29 provides rotational freedom, and the protrusion 28 and the groove 27 achieve mechanical engagement to ensure that it is firmly closed and will not loosen. It is suitable for vibration environments, such as automobiles and industrial equipment, to prevent the protective cover from being opened accidentally.
[0061] The snap-fit structure allows for easy opening and closing without tools, simplifying installation and maintenance. The lugs 28 and grooves 27 interlock tightly to form a physical barrier, which helps to improve dustproof and splashproof performance and enhances sealing.
[0062] The external fixed connection of the extrusion ring 24 with the reinforcing strip 30 is beneficial to improve the rigidity of the extrusion ring 24, which can resist external impact or high-frequency vibration, improve the deformation resistance, extend the service life of the protective sleeve, prevent structural fatigue or deformation caused by long-term pressure, and the local reinforcement design avoids the overall material thickness, while maintaining lightweight while specifically strengthening key stress parts.
[0063] Working principle: Separate the protrusions and grooves of the protective sleeve to present an unfolded state. Place the terminal connecting piece at the position of the first clamping block. Place the cable inside the protective sleeve, so that the exposed part of the cable head is placed inside the connecting piece. Then, flip the other half of the protective sleeve over and close the protective sleeve. At the same time, the second clamping block inside the compression ring and the first clamping block will compress each other, so that the internal terminals are tightly connected.
[0064] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.
[0065] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A lightweight protective sleeve for cold-pressed terminals, comprising a terminal (1) and a protective sleeve (2) fixedly connected to the outside of the terminal (1), characterized in that: The protective sleeve (2) includes a fixing ring (22), a positioning ring (23), and a compression ring (24); The compression ring (24) is internally fixedly connected to a clamping block; The clamping block includes a first clamping block (25) and a second clamping block (26).
2. The lightweight protective sleeve for cold-pressed terminals according to claim 1, characterized in that, The protective sleeve (2) is externally connected to a hinge (29); The hinge (29) is located at the top and bottom of the protective sleeve (2), and the two protective sleeves (2) are rotatably connected by the hinge (29).
3. The lightweight protective sleeve for cold-pressed terminals according to claim 1, characterized in that, The terminal (1) includes a head (11), the bottom of which is fixedly connected to the connecting piece (12); The connecting piece (12) is located in the middle of the first pressing block (25) and the second pressing block (26).
4. The lightweight protective sleeve for cold-pressed terminals according to claim 1, characterized in that, An extension sleeve (21) is fixedly connected inside the protective sleeve (2), and the extension sleeve (21) extends out from the bottom of the protective sleeve (2).
5. A lightweight protective sleeve for cold-pressed terminals according to claim 2, characterized in that, The opening of the protective sleeve (2) is fixedly connected to a protrusion (28), and a groove (27) is opened at the corresponding position of the protrusion (28). The two protective sleeves (2) are snapped together by the groove (27) and the protrusion (28).
6. A lightweight protective sleeve for cold-pressed terminals according to claim 3, characterized in that, The compression ring (24) is externally fixed to the reinforcing strip (30).