A cable joint terminal connection device
By designing a cable joint terminal connection device consisting of a sleeve, bushing, arc plate, and transmission components, the problem of sealing ring failure caused by rain and sun exposure during outdoor use was solved. This achieved stable clamping and improved sealing performance of the sealing ring, thereby enhancing the safety and lifespan of the cable joint.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CEEPOWER CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-06-05
AI Technical Summary
When existing cable connectors are used outdoors, the sealing rings lack a stable fixing mechanism, which leads to sealing failure. They are prone to softening and deformation under rain and sun exposure, resulting in rainwater leakage and electrical discharge breakdown, reducing safety and lifespan.
A cable connector terminal connection device was designed, which uses a sleeve, a bushing, a sealing ring, an arc plate and a transmission assembly. The sealing ring is tightly fitted and stably clamped by a ball screw and a linkage unit. The sealing pressure is adjusted by a spring to ensure the sealing performance.
This effectively prevents the sealing ring from softening and deforming due to rain and sun exposure during long-term use, ensuring a tight fit between the terminal and the sleeve, and improving safety and lifespan.
Smart Images

Figure CN224329196U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cable joints, specifically a cable joint terminal connection device. Background Technology
[0002] Cable connectors and termination devices are key components in power systems used to connect cables. They are mainly used to safely and reliably connect different parts of a cable to ensure normal power transmission.
[0003] When used outdoors, existing cable terminations lack a stable fixing mechanism for the sealing ring, making them susceptible to softening and deformation of the sealing ring due to prolonged exposure to rain and sun. This leads to a failure in the seal of the terminal, resulting in water leakage during rainy days and causing discharge breakdown. Consequently, the safety and service life of the cable termination are reduced.
[0004] The above statements are for the purpose of providing background information in relation to this application only and do not necessarily constitute prior art. Utility Model Content
[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a cable connector terminal connection device.
[0006] The technical solution of this utility model is as follows: a cable connector terminal connection device includes a sleeve, a sleeve fixedly connected to the top of the sleeve, a terminal detachably connected inside the sleeve, a sealing ring provided at the bottom inside the sleeve, a pressure plate fixedly connected to the top of the sealing ring, a first arc plate slidably connected to both sides inside the sleeve via a sliding rod, a second arc plate fixedly connected to the top of the first arc plate, and a transmission component provided inside the sleeve.
[0007] In a preferred embodiment, the transmission assembly includes a ball screw and a linkage unit. The ball screw is fixedly connected to the outer sides of two first arc-shaped plates. Threaded sleeves are rotatably connected to both outer sides of the sleeve. The threaded sleeves are connected to the outside of the ball screw via a screw-nut pair. A first bevel gear is fixedly connected to the outside of the threaded sleeve. A knob is rotatably connected to the upper outside of the sleeve. A second bevel gear is fixedly connected to the bottom of the knob. The first bevel gear and the second bevel gear are meshed together. The pressure plate can move downwards via the linkage unit.
[0008] In a preferred embodiment, the linkage unit includes a limiting rod, which is symmetrically fixedly connected to the top two sides of the pressure plate. An inclined block that cooperates with the second arc-shaped plate is slidably connected to the outside of the limiting rod. A spring is provided outside the limiting rod and between the pressure plate and the inclined block.
[0009] In a preferred embodiment, a fixing plate is fixedly connected to the top side of the knob, and a bolt is threadedly connected to the inside of the fixing plate. Two threaded holes are opened on the outer side of the sleeve, and the bolt is threadedly connected to the threaded holes.
[0010] In a preferred embodiment, the sleeve contains a cable body.
[0011] In a preferred embodiment, rubber anti-slip pads are fixedly connected to the inner sides of both the first arc-shaped plate and the second arc-shaped plate.
[0012] In a preferred embodiment, the diameter of the first bevel gear is smaller than the diameter of the second bevel gear.
[0013] In a preferred embodiment, the knob is provided with an anti-slip knurled pattern on its exterior.
[0014] The beneficial effects of this utility model are as follows:
[0015] This device clamps the terminals using the second arc-shaped plates on both sides, improving the stability of the terminals during use. Furthermore, the pressure plate and the first arc-shaped plate press against the sealing ring, ensuring a tight seal between the terminal and the sleeve. Additionally, the spring adjusts the sealing ring pressure based on its own stress, guaranteeing a consistently tight seal. This effectively prevents the sealing ring from softening and deforming due to prolonged exposure to rain and sun, which could lead to leakage and discharge breakdown during rainy weather. Therefore, this device significantly improves safety and extends its lifespan.
[0016] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description
[0017] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.
[0018] In the accompanying drawings of the instruction manual:
[0019] Figure 1 This is a perspective view of the present utility model;
[0020] Figure 2 This is a cross-sectional view of the present invention;
[0021] Figure 3 This is a cross-sectional view of the second aspect of the present invention;
[0022] Figure 4 This is a perspective view of the knob and the second bevel gear in this utility model;
[0023] Figure 5 For the present utility model Figure 1 Enlarged view of point A in the middle;
[0024] Figure 6 For the present utility model Figure 2 Enlarged view at point B in the middle;
[0025] Figure 7 For the present utility model Figure 3 Enlarged view of point C.
[0026] The reference numerals used in the above figures are explained as follows:
[0027] 1. Sleeve; 2. Terminal; 3. Sealing ring; 4. Pressure plate; 5. First arc plate; 6. Second arc plate; 7. Slide rod; 8. Sleeve; 9. Ball screw; 10. Threaded sleeve; 11. First bevel gear; 12. Knob; 13. Second bevel gear; 14. Limiting rod; 15. Wedge block; 16. Spring; 17. Fixing plate; 18. Bolt; 19. Threaded hole; 20. Cable body. Detailed Implementation
[0028] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0029] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0030] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0031] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0032] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0033] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0034] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0035] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0036] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0037] Please see Figure 1-7 A cable connector terminal connection device includes a sleeve 1, a sleeve 8 fixedly connected to the top of the sleeve 1, a terminal 2 detachably connected inside the sleeve 8, a sealing ring 3 provided at the lower part of the inside of the sleeve 8, a pressure plate 4 fixedly connected to the top of the sealing ring 3, a first arc plate 5 slidably connected to both sides of the inside of the sleeve 8 via a slide rod 7, a second arc plate 6 fixedly connected to the top of the first arc plate 5, and a transmission assembly provided inside the sleeve 8.
[0038] Specifically, the transmission assembly includes a ball screw 9 and a linkage unit. The ball screw 9 is fixedly connected to the outer sides of the two first arc-shaped plates 5 respectively. Threaded sleeves 10 are rotatably connected to both sides of the outer side of the sleeve 8. The threaded sleeves 10 are connected to the outer side of the ball screw 9 through a screw nut pair. A first bevel gear 11 is fixedly connected to the outer side of the threaded sleeve 10. A knob 12 is rotatably connected to the upper outer side of the sleeve 8. A second bevel gear 13 is fixedly connected to the bottom of the knob 12. The first bevel gear 11 and the second bevel gear 13 are meshed. The pressure plate 4 can move downward through the linkage unit. The linkage unit includes a limit rod 14. The limit rod 14 is symmetrically fixedly connected to the top two sides of the pressure plate 4. An inclined block 15 that cooperates with the second arc-shaped plate 6 is slidably connected to the outer side of the limit rod 14. A spring 16 is provided outside the limit rod 14 and between the pressure plate 4 and the inclined block 15.
[0039] Using the above technical solution, firstly, the terminal 2 is installed with the cable body 20. Then, the knob 12 is manually rotated to drive the second bevel gear 13 at the bottom to rotate. This causes the second bevel gear 13 to drive the first bevel gear 11 and the threaded sleeve 10 to rotate through the meshing relationship. The threaded sleeve 10 then drives the ball screw 9 and the first arc plate 5 to move inward through the lead screw and nut pair. At the same time, it drives the second arc plate 6 at the top of the first arc plate 5 to move inward. During the inward movement, the second arc plate 6 can push the inclined surface of the inclined block 15, pushing the inclined block 15 downward under the limit of the limiting rod 14, while simultaneously compressing the spring 16. The deformation of spring 16 causes the pressure plate 4 to press the sealing ring 3 from top to bottom via the inclined block 15 and spring 16. Then, the first arc plate 5 and the second arc plate 6 continue to move inward and continue to compress spring 16 until the first arc plate 5 presses the sealing ring 3 from both sides while the second arc plate 6 clamps the terminal 2. This clamps and fixes the terminal, improving stability during use. Furthermore, the pressure of the sealing ring 3 by the pressure plate 4 and the first arc plate 5 ensures that the sealing ring 3 always fits tightly against the connection between the terminal 2 and the sleeve 1, sealing the connection between the terminal 2 and the sleeve 1. In addition, spring 16 will... The pressure of the sealing ring 3 is adjusted according to its own stress, thus ensuring that the sealing ring 3 always fits tightly against the connection between the terminal 2 and the sleeve 1. This effectively prevents the sealing ring 3 from softening and deforming due to prolonged use and exposure to rain and sun, which could lead to a failure of the seal at the connection between the terminal 2 and the sleeve 1, resulting in rainwater leakage and potential discharge breakdown. This effectively improves the safety and service life of the device. The device can clamp the terminal 2 using the second arc-shaped plates 6 on both sides, improving the stability of the terminal 2 during use. Furthermore, the pressure plate 4 and the first arc-shaped plate 5 ensure a tight seal. The compression of the sealing ring 3 ensures that it always fits tightly against the connection between the terminal 2 and the sleeve 1, sealing the connection. In addition, the spring 16 adjusts the pressure of the sealing ring 3 according to its own stress, thus ensuring that the sealing ring 3 always fits tightly against the connection between the terminal 2 and the sleeve 1. This effectively prevents the sealing ring 3 from softening and deforming due to prolonged use and exposure to rain and sun, which could lead to a failure of the seal at the connection between the terminal 2 and the sleeve 1, resulting in rainwater leakage and potential discharge breakdown. This effectively improves the safety and service life of the device.
[0040] Specifically, a fixing plate 17 is fixedly connected to the top side of the knob 12, and a bolt 18 is threadedly connected inside the fixing plate 17. Two threaded holes 19 are opened on the outer side of the sleeve 8, and the bolt 18 is threadedly connected to the threaded holes 19. A cable body 20 is provided inside the sleeve 1. Rubber anti-slip pads are fixedly connected to the inner sides of the first arc plate 5 and the second arc plate 6. The diameter of the first bevel gear 11 is smaller than the diameter of the second bevel gear 13. The outer side of the knob 12 is provided with anti-slip knurling.
[0041] With the above technical solution, after clamping the terminal 2 and pressing the sealing ring 3, the bolt 18 in the fixing plate 17 is tightened into the corresponding threaded hole 19 to fix the knob 12. The anti-slip knurling can increase the friction between the knob 12 and the operator's hand to prevent slippage.
[0042] In use, first install terminal 2 and cable body 20, then manually rotate knob 12 to drive the second bevel gear 13 at the bottom to rotate. This causes the second bevel gear 13 to mesh with the first bevel gear 11 and threaded sleeve 10, which in turn drives the ball screw 9 and first arc plate 5 to move inwards via a screw-nut pair. Simultaneously, this causes the second arc plate 6 at the top of the first arc plate 5 to move inwards. During this inward movement, the second arc plate 6 pushes the inclined surface of the inclined block 15, causing it to move downwards under the limit of the limiting rod 14. This also compresses the spring 16, causing it to deform. The inclined block 15 and spring 16 then push the pressure... Plate 4 presses the sealing ring 3 from top to bottom. Then, the first arc-shaped plate 5 and the second arc-shaped plate 6 continue to move inward and continue to compress the spring 16 until the first arc-shaped plate 5 presses the sealing ring 3 from both sides while the second arc-shaped plate 6 clamps the terminal 2. This clamps and fixes the terminal, improving stability during use. Furthermore, the pressing of the sealing ring 3 by the pressure plate 4 and the first arc-shaped plate 5 ensures that the sealing ring 3 always fits tightly against the connection between the terminal 2 and the sleeve 1, sealing the connection. Additionally, the spring 16 adjusts the pressure of the sealing ring 3 according to its own stress, thus ensuring that the sealing ring 3 always fits tightly against the connection between the terminal 2 and the sleeve 1. To effectively prevent the sealing ring 3 from softening and deforming due to prolonged exposure to rain and sun, which could lead to sealing failure at the connection between terminal 2 and sleeve 1 and cause rainwater leakage, resulting in discharge breakdown, this device effectively improves safety and lifespan. The device uses the second arc-shaped plates 6 on both sides to clamp terminal 2, improving its stability during use. Furthermore, the pressure plate 4 and the first arc-shaped plate 5 press the sealing ring 3, ensuring it remains tightly fitted to the connection between terminal 2 and sleeve 1, sealing the connection. Additionally, the spring 16 uses its own stress to compress the sealing ring 3. The force adjustment ensures that the sealing ring 3 always fits tightly against the connection between the terminal 2 and the sleeve 1. This effectively prevents the sealing ring 3 from softening and deforming due to prolonged use in the rain and sun, which could lead to a failure of the seal at the connection between the terminal 2 and the sleeve 1. This would result in rainwater leakage and discharge breakdown during rainy days, effectively improving the safety and service life of the device. After clamping the terminal 2 and pressing the sealing ring 3, the bolts 18 in the fixing plate 17 are tightened into the corresponding threaded holes 19 to fix the knob 12. The anti-slip knurling pattern increases the friction between the knob 12 and the operator's hand, preventing slippage.
[0043] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A cable connector terminal connection device, comprising a sleeve (1), characterized in that, The top of the sleeve (1) is fixedly connected to a sleeve (8), and the inside of the sleeve (8) is detachably connected to a terminal (2). A sealing ring (3) is provided at the bottom inside the sleeve (8), and a pressure plate (4) is fixedly connected to the top of the sealing ring (3). The two sides inside the sleeve (8) are slidably connected to a first arc plate (5) through a slide rod (7). A second arc plate (6) is fixedly connected to the top of the first arc plate (5). A transmission component is provided inside the sleeve (8).
2. The cable connector terminal connection device according to claim 1, characterized in that, The transmission assembly includes a ball screw (9) and a linkage unit. The ball screw (9) is fixedly connected to the outer side of the two first arc plates (5). Threaded sleeves (10) are rotatably connected to both sides of the outer side of the sleeve (8). The threaded sleeves (10) are connected to the outside of the ball screw (9) through a screw nut pair. A first bevel gear (11) is fixedly connected to the outside of the threaded sleeve (10). A knob (12) is rotatably connected to the upper outside of the sleeve (8). A second bevel gear (13) is fixedly connected to the bottom of the knob (12). The first bevel gear (11) and the second bevel gear (13) are meshed. The pressure plate (4) can move downward through the linkage unit.
3. The cable connector terminal connection device according to claim 2, characterized in that, The linkage unit includes a limiting rod (14), which is symmetrically fixedly connected to the top two sides of the pressure plate (4). The limiting rod (14) is slidably connected to the outside of the limiting rod (14) and a wedge (15) that cooperates with the second arc plate (6). A spring (16) is provided outside the limiting rod (14) and between the pressure plate (4) and the wedge (15).
4. A cable connector terminal connection device according to claim 3, characterized in that, A fixing plate (17) is fixedly connected to the top side of the knob (12), and a bolt (18) is threadedly connected inside the fixing plate (17). Two threaded holes (19) are opened on the outer side of the sleeve (8), and the bolt (18) is threadedly connected to the threaded holes (19).
5. A cable connector terminal connection device according to claim 4, characterized in that, The sleeve (1) is provided with a cable body (20).
6. A cable connector terminal connection device according to claim 5, characterized in that, Rubber anti-slip pads are fixedly connected to the inner sides of the first arc plate (5) and the second arc plate (6).
7. A cable connector terminal connection device according to claim 2, characterized in that, The diameter of the first bevel gear (11) is smaller than the diameter of the second bevel gear (13).
8. A cable connector terminal connection device according to claim 2, characterized in that, The knob (12) has an anti-slip knurled pattern on its exterior.