Cable connecting device
By designing a cable connection device that uses expanding gas to push the conductor column apart and break the current path, the problems of inconvenient connection after cable breakage and high risk of short circuit are solved, thus improving safety and convenience.
Patent Information
- Application Number
- CN202511654738.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-02-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing technologies, cables are difficult to reconnect easily after breaking when used outdoors. The connection point is easily affected by external factors, resulting in a high risk of short circuits and the inability to disconnect in time, which poses a safety hazard.
A cable connection device is designed, including a mounting shell, a conductor sleeve, and a telescopic bladder. It utilizes expanding gas to push the conductor column apart during a short circuit, breaking the current path and enhancing safety. The device also ensures the stability and convenience of the connection through structures such as fasteners, clamps, and locking rods.
It improves the safety and practicality of cable connections, automatically disconnecting the current path in the event of a short circuit, reducing safety hazards, and enhancing the stability and convenience of the connection.
Smart Images
Figure CN121546411A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of connection device technology, and more specifically to a cable connection device. Background Technology
[0002] A cable is a device for transmitting electrical energy or signals, usually consisting of several or groups of conductors. Cables are mostly used outdoors, and during use, they are inevitably affected by external factors such as wind and sun. When a cable breaks during use, it must be reconnected using a connecting device.
[0003] In existing technologies, when a suspended portion of a cable breaks, it is inconvenient to reconnect it using a cable junction box. If the cable is a coaxial cable or other thin cable, the outer sheath is usually cut off, and the inner core is twisted together using electrician's pliers. The outside is then sealed with electrical tape. However, after the connection is made, the connection point is still easily affected outdoors, causing the cable to be prone to short circuits. When a short circuit occurs, the line cannot be cut off in time, which can easily cause safety hazards.
[0004] Therefore, the present invention proposes a cable connection device to improve this problem. Summary of the Invention
[0005] The purpose of this invention is to provide a cable connection device in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution: A cable connection device, comprising: The mounting housing has fasteners at both ends for connecting the mounting housing to the cable. Two conductor sleeves are symmetrically installed inside the mounting housing. One end of the conductor sleeve penetrates the mounting housing and contacts the cable. Conductor posts are slidably installed inside the conductor sleeves. A telescopic bladder is installed between the conductor posts, and an expanding gas is installed inside the telescopic bladder. When the telescopic bladder is at its original length, the conductor posts are in contact with each other.
[0007] Furthermore, the fastener includes a plurality of clamps hinged to the end of the mounting housing, the clamps having abutment blocks mounted on them for contacting the cable, and a restraint sleeve slidably mounted on the mounting housing, the clamps being restricted from rotating when the restraint sleeve slides into contact with the clamps.
[0008] Furthermore, the mounting shell has a threaded hole, the restraint sleeve has a hinged rod, the mounting shell has a locking rod that is threadedly connected to the threaded hole, a rotating ring is movably mounted on the locking rod, the free end of the hinged rod is hinged to the rotating ring, multiple extension wires are mounted on the top of the hinged rod, and an inclined plate is mounted on the locking rod to block the rotating ring.
[0009] Furthermore, multiple sliding plates are installed on the conductor post, and support rods are hinged to the sliding plates. The free ends of the support rods are hinged to each other, and the support rods are used to contact the inner wall of the conductor sleeve. A fuse rod that contacts the conductor post is installed on the inner wall of the conductor sleeve.
[0010] Furthermore, the clamping plate is provided with an insertion hole, the mounting shell is provided with a reserved plate, and an insertion rod for insertion into the insertion hole is installed on the reserved plate.
[0011] Furthermore, a mounting plate is mounted on the mounting shell, and a protective shell is hinged to the mounting plate to accommodate the clamping plate.
[0012] Furthermore, a connecting frame that slides with the mounting shell is installed on the locking rod, and an elastic rod is installed on the connecting frame. The connecting frame is connected to the mounting plate through the elastic rod.
[0013] Furthermore, a blocking rod is tightly rotatably mounted on the mounting plate, which restricts the rotation of the protective shell when it rotates to contact the protective shell.
[0014] Furthermore, a thickened ring is installed on the mounting shell, and the projection of the thickened ring on the mounting shell coincides with the projection of the telescopic bladder on the mounting shell.
[0015] Furthermore, the fuse rod is installed at an angle inside the conductor sleeve.
[0016] The beneficial effects of this invention are as follows: When connecting a broken cable, this invention places the mounting shell in the cable break and connects both ends of the mounting shell to the cable using fasteners. At this time, the inner core of the cable is connected to the conductor sleeve, and a passage is formed between the inner core of the cable, the conductor sleeve, and the guide post. When a short circuit occurs at the connection, the temperature of the circuit increases, causing the expanding gas to expand. This expands and pushes the conductor post through the telescopic bladder, causing the conductor post to separate from each other and breaking the passage. This improves the safety of the cable during use and increases the practicality of the device. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the device of the present invention in use; Figure 3 This is a schematic diagram of the connecting frame structure of the present invention; Figure 4 This is a schematic diagram of the fastener structure of the present invention; Figure 5 This is an exploded view of part of the structure of this invention; Figure 6This is an exploded view of the clamping plate and reserved plate structure of the present invention; Figure 7 This is an exploded view of the mounting shell and conductor sleeve structure of the present invention; Figure 8 This is an exploded view of the conductor sleeve structure of the present invention; Figure 9 This is another schematic diagram of the connecting frame structure of the present invention; Figure 10 This is a schematic diagram of the drive rod structure of the present invention; Figure 11 This is a three-dimensional sectional view of the internal structure of the mounting shell of the present invention.
[0018] Reference numerals: 1. Mounting shell; 2. Fixing element; 201. Clamping plate; 202. Abutting block; 203. Restraint sleeve; 204. Threaded hole; 205. Hinge rod; 206. Rotary ring; 207. Inclined plate; 208. Locking rod; 3. Conductor sleeve; 301. Conductor post; 302. Telescopic bladder; 4. Extension wire; 5. Sliding plate; 6. Support rod; 7. Fuse rod; 8. Insertion hole; 9. Reserved plate; 10. Insertion rod; 11. Mounting plate; 12. Protective shell; 13. Connecting frame; 14. Elastic rod; 15. Blocking rod; 16. Thickened ring. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0020] like Figures 1-11 As shown, in some embodiments of the present invention, a cable connection device includes: Mounting housing 1, with fixing parts 2 installed at both ends of mounting housing 1. Fixing parts 2 are used to connect mounting housing 1 to cable. The body of mounting housing 1 is made of insulating materials such as plastic or rubber. When the cable breaks, mounting housing 1 is placed at the cable break point, and the two ends of mounting housing 1 are connected to the two points of the cable break point by fixing parts 2, so that mounting housing 1 is connected to the cable and located between the breaks. Two conductor sleeves 3 are symmetrically installed inside the mounting housing 1. The conductor sleeves 3 are made of copper and are fixedly installed within the mounting housing 1. One end of each conductor sleeve 3 penetrates the mounting housing 1 and contacts the cable. After the fixing component 2 connects the mounting housing 1 to the cable, the end of the conductor sleeve 3 contacts the inner core of the cable. Conductor posts 301 are slidably installed inside the conductor sleeves 3. A telescopic bladder 302 is installed between the conductor posts 301, and the telescopic bladder 302 contains expanding gas. When the telescopic bladder 302 is at its original length, the conductor posts 301 are in contact with each other. The two conductor sleeves 3 are designated as sleeve A and sleeve B, and the two conductor posts 301 are designated as posts A and post B, respectively. The cable breaks are designated as ends A and B. At end B, the sidewall of conductor post 301 contacts conductor sleeve 3, allowing current to be transmitted to conductor post 301 through conductor sleeve 3. The expanding gas inside the telescopic bladder 302 is carbon dioxide, which can expand. Even if it leaks, carbon dioxide itself cannot burn or support combustion, increasing the safety of the device during use. The telescopic bladder 302 is similar in shape to a bellows, and both ends of the telescopic bladder 302 are located inside conductor sleeve 3, limiting its position. When the expanding gas inside the telescopic bladder 302 expands, the degree of deformation of the telescopic bladder 302 in its axial direction can be greater than the degree of deformation in its radial direction, causing the telescopic bladder 302 to push conductor posts 301 away from each other. When the device is installed, the two ends of the mounting shell 1 are connected to end A and end B respectively by the fixing component 2. At this time, the current path is that the current flows from end A through the A sleeve to the A column. At this time, the A column and the B column are in contact. The current flows through the A column to the B column, then through the B sleeve, and finally to end B, completing the current transport. If the cable is short-circuited, a large amount of heat will be generated, causing the expansion gas in the telescopic bladder 302 to expand, causing the telescopic bladder 302 to deform. In turn, the telescopic bladder 302 pushes the A column and the B column to separate. At this time, end A, the A sleeve and the A column remain connected, end B, the B sleeve and the B column remain connected, but the connection between the A column and the B column is broken. Therefore, the current path is broken when a short circuit occurs, which increases the safety of the device during use. Compared with the prior art, when connecting a disconnected cable, the mounting shell 1 is placed in the cable break and the two ends of the mounting shell 1 are connected to the cable by the fixing component 2. At this time, the inner core of the cable is connected to the conductor sleeve 3. At this time, a passage is formed between the inner core of the cable, the conductor sleeve 3 and the conductor post 301. When a short circuit occurs at the connection, the temperature of the circuit increases, causing the expanding gas to expand. This expands and pushes the conductor post 301 through the telescopic bladder 302, causing the conductor posts 301 to separate from each other and break the passage. This increases the safety of the cable during use and increases the practicality of the device.
[0021] like Figure 4 , Figure 7 and Figure 10As shown, a portion of the structure of the fastener 2 is disclosed. The fastener 2 includes a plurality of clamps 201 hinged to the end of the mounting housing 1. Abutment blocks 202 are mounted on the clamps 201. The abutment blocks 202 are used to abut against the cable. When the clamps 201 rotate, they drive the abutment blocks 202 away from or closer to the cable. In use, by rotating the clamps 201, the clamps 201 are brought closer to each other, and the abutment blocks 202 are driven to abut against the outer rubber sheath of the cable. A restraint sleeve 203 is slidably mounted on the mounting housing 1. When the restraint sleeve 203 slides to contact the clamping plate 201, the rotation of the clamping plate 201 is restricted. When the clamping plate 201 is rotated to contact the cable, the abutment block 202 abuts against the cable sheath and embeds itself into the sheath. At this time, the restraint sleeve 203 is slid again. The inner diameter of the restraint sleeve 203 is the same as the outer diameter of the clamping plate 201. When the restraint sleeve 203 wraps around the clamping plate 201, it restricts the tendency of the clamping plates 201 to move away from each other. Furthermore, because the abutment block 202 abuts against the sheath, it pushes the clamping plate 201 to abut against the inner wall of the restraint sleeve 203, thereby restricting the sliding of the restraint sleeve 203. This completes the connection between the mounting housing 1 and the cable, increasing the convenience of the device during connection.
[0022] like Figure 4 , Figure 7 and Figure 10 As shown, a portion of the structure of the fastener 2 is disclosed. The mounting housing 1 has a threaded hole 204. A hinge rod 205 is hinged to the restraint sleeve 203. The mounting housing 1 has a locking rod 208 threadedly connected to the threaded hole 204. The locking rod 208 has external threads, and a rotating ring 206 is movably mounted on the locking rod 208. The rotating ring 206 can slide and rotate on the locking rod 208. The free end of the hinge rod 205 is hinged to the rotating ring 206. The restraint sleeve 203 is connected to the rotating ring 206 via the hinge rod 205, and then to the locking rod 208. When the restraint sleeves 203 move away from each other, the hinge rod 205 is pulled to rotate, causing the free end of the hinge rod 205 to... The rotating ring 206 and the locking rod 208 are moved closer to the mounting shell 1, which in turn causes the locking rod 208 to gradually approach the threaded hole 204. When the end of the locking rod 208 is initially inserted into the threaded hole 204, the locking rod 208 is rotated so that the locking rod 208 and the threaded hole 204 are connected. After the movement of the locking rod 208 is restricted, the rotation of the hinge rod 205 is also restricted. Since the rotation of the hinge rod 205 is restricted, if the restraint sleeve 203 wants to slide, it will also form interference with the hinge rod 205 and be restricted by the hinge rod 205. This restricts the sliding of the restraint sleeve 203 and increases the stability of the restraint sleeve 203 during use. Multiple extension wires 4, made of iron wire, are mounted on the top of the hinge rod 205. An inclined plate 207 is mounted on the locking rod 208 to block the rotating ring 206. The inclined plate 207 is made of iron or other materials capable of elastic deformation. The locking rod 208 includes a thick rod and a thin rod, creating a drop on its surface. This drop limits the sliding of the rotating ring 206. The end of the inclined plate 207 away from the drop is connected to the locking rod 208, while the end of the inclined plate 207 facing the drop is away from the rod body of the locking rod 208. When the device is not in use, the inner cavity of the rotating ring 206 accommodates and restrains the extension wires 4, preventing them from becoming too scattered and facilitating transport. When the device needs to be used, the rotating ring 206 is slid to move towards the drop. As it passes the inclined plate... At point 207, the inclined plate 207 is pressed against and squeezed, causing it to deform and move closer to the locking rod 208, making way for the rotating ring 206. This allows the rotating ring 206 to move to the drop point. At this time, the rotating ring 206 is located between the inclined plate 207 and the drop point, restricting the sliding of the rotating ring 206 on the locking rod 208. This allows the rotating ring 206 to move with the locking rod 208 when it is pulled and displaced. After the device is installed, the multiple extension wires 4 are bent to tilt them, so that the projection of the ends of the extension wires 4 on the mounting shell 1 is outside the mounting shell 1. The extension wires 4 cover the top of the mounting shell 1, so that the mounting shell 1 does not have a place for birds to perch. This reduces the possibility of birds standing on the mounting shell 1 and causing the cable break point to be subjected to greater force, increasing the practicality of the device. The diagram shows a relatively short length for illustrative purposes only; the actual length of the extension wire 4 is as described in the text above.
[0023] like Figure 8 and Figure 11 As shown, a partial structure of the conductor post 301 and conductor sleeve 3 is disclosed. Multiple sliding plates 5 are installed on the conductor post 301. In this embodiment, two sliding plates 5 are slidably installed on one conductor post 301. Support rods 6 are hinged to the sliding plates 5. The free ends of the support rods 6 are hinged to each other. The support rods 6 are used to contact the inner wall of the conductor sleeve 3. The hinged end of the support rod 6 contacts the inner wall of the conductor sleeve 3. A fuse rod 7 is installed on the inner wall of the conductor sleeve 3, which contacts the conductor post 301. The fuse rod 7 is made of the same material as existing fuses. When it is subjected to high temperature, it will melt. The fuse rod 7 is used to support and resist the conductor post 301. Through the support of the fuse rod 7 and the support rod 6 and the pulling of the telescopic bladder 302, the device restricts the sliding of the conductor post 301 under normal conditions, ensuring that the A post and the B post can contact normally, which increases the feasibility of the device. When a short circuit occurs in the cable, the temperature inside the line increases, causing the expansion capsule 302 to deform and simultaneously melting the fuse rod 7. This releases the support of the fuse rod 7 to the conductor post 301, allowing the conductor post 301 to slide. When the conductor post 301 slides, it contacts the support rod 6, causing the support rod 6 to rotate and push the sliding plate 5 to slide, making way for the conductor post 301 to slide within the conductor sleeve 3, thus increasing the feasibility of the device.
[0024] like Figure 6 As shown, a portion of the structure of the clamping plate 201 is disclosed. The clamping plate 201 has an insertion hole 8, and the mounting shell 1 has a reserved plate 9. An insertion rod 10 for insertion into the insertion hole 8 is installed on the reserved plate 9. The reserved plate 9 and the mounting shell 1 are detachable. When installing the device with the cable, the reserved plate 9 is first placed on the cable. When the mounting shell 1 is placed at the cable break and the clamping plate 201 is rotated to contact the cable, the reserved plate 9 is slid to drive the insertion rod 10 to be inserted into the insertion hole 8. Since the position of the insertion rod 10 on the reserved plate 9 cannot be changed, the tendency of the clamping plates 201 to move away from each other can be initially restricted. This reduces the possibility of the clamping plate 201 accidentally rotating during the process of the restraint sleeve 203 sliding to contact the clamping plate 201, which may cause inconvenience in the operation of the device, and increases the practicality of the device.
[0025] like Figure 1 , Figure 2 and Figure 3 As shown, a portion of the structure of the mounting housing 1 is disclosed. A mounting plate 11 is mounted on the mounting housing 1, and a protective shell 12 is hinged to the mounting plate 11. The protective shell 12 is used to accommodate the clamping plate 201. By rotating the protective shell 12, the clamping plate 201 can be accommodated and protected. When carrying the device, the protective shell 12 can shield the clamping plate 201 and the contact block 202, reducing the possibility of damage to the clamping plate 201 and the contact block 202 during transportation and carrying, and increasing the practicality of the device.
[0026] like Figure 3 , Figure 5 and Figure 9As shown, a portion of the structure of the locking rod 208 is disclosed. A connecting frame 13, which slides with the mounting housing 1, is mounted on the locking rod 208. An elastic rod 14 is mounted on the connecting frame 13. The connecting frame 13 is connected to the mounting plate 11 via the elastic rod 14. When the locking rod 208 moves towards the threaded hole 204, the connecting frame 13 and the elastic rod 14 move the mounting plate 11 away from the mounting housing 1. The elastic rod 14 is made of steel strand, and the protective housing 12 is made of hot-dip galvanized cast iron. When the device is in use, the protective housing 12 is first rotated to release its obstruction of the clamping plate 201, allowing the device to connect smoothly to the cable. When the locking rod 208 is connected to the threaded hole 204... During the process, the connecting frame 13 is moved away from the mounting shell 1, and the protective shell 12 is also moved away from the mounting shell 1, providing space for the deformation of the elastic rod 14. At this time, the protective shell 12, the connecting frame 13, and the elastic rod 14 can form the structure of the anti-vibration hammer. The protective shell 12 forms the hammer head of the anti-vibration hammer. When the cable shakes, it will cause the protective shell 12 and the elastic rod 14 to shake. Due to inertia, a force opposite to the direction of cable vibration is generated, which directly weakens the vibration amplitude. Moreover, the air resistance forms secondary damping on the movement of the hammer, further consuming vibration energy, reducing the vibration frequency, reducing the shaking frequency of the cable, reducing the possibility of the cable being subjected to multiple forces due to shaking at the break point, and increasing the practicality of the device.
[0027] like Figure 3 , Figure 5 and Figure 9 As shown, a portion of the structure on the mounting plate 11 is disclosed. A blocking rod 15 is tightly rotatably mounted on the mounting plate 11. When the blocking rod 15 rotates to contact the protective shell 12, it restricts the rotation of the protective shell 12. The blocking rod 15 is located on both sides of the mounting plate 11. When the device is not in use, rotating the blocking rod 15 to contact the protective shell 12 restricts the tendency of the protective shells 12 to move away from each other. When the device is in use, the protective shell 12 rotates to... Figure 2 When the protective shell 12 is in the correct position, rotate the shielding rod 15 so that it rotates between the inner walls of the protective shell 12. The shielding rod 15 restricts the tendency of the protective shell 12 to move away from each other, thereby increasing the stability of the protective shell 12 during use.
[0028] like Figure 11 As shown, a portion of the structure on the mounting shell 1 is disclosed. A thickened ring 16 is mounted on the mounting shell 1. The projection of the thickened ring 16 on the mounting shell 1 coincides with the projection of the telescopic bladder 302 on the mounting shell 1. By shielding the thickened ring 16, the heat exchange between the external environment and the telescopic bladder 302 is reduced, the possibility of the telescopic bladder 302 being falsely inflated due to external factors is reduced, and the practicality of the device is increased.
[0029] like Figure 8 and Figure 11As shown, the specific structure of the fuse rod 7 is disclosed. The fuse rod 7 is installed obliquely inside the conductor sleeve 3. By setting the fuse rod 7 at an angle, as... Figure 11 As shown, when the conductor post 301 is pushed, it is easier to push the fuse rod 7 against it. During the process, the fuse rod 7 also melts, which further facilitates the sliding of the conductor post 301 within the conductor sleeve 3, increasing the practicality of the device.
[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A cable connection device, characterized in that, include: Mounting housing (1), with fasteners (2) installed at both ends, the fasteners (2) being used to connect mounting housing (1) to cable; There are two conductor sleeves (3) installed symmetrically inside the mounting shell (1). One end of the conductor sleeve (3) passes through the mounting shell (1) and contacts the cable. Conductor posts (301) are slidably installed inside the conductor sleeve (3). A telescopic bladder (302) is installed between the conductor posts (301). The telescopic bladder (302) is filled with expanding gas. When the telescopic bladder (302) is at its original length, the conductor posts (301) are in contact with each other.
2. The cable connection device according to claim 1, characterized in that, The fastener (2) includes a plurality of clamps (201) hinged to the end of the mounting shell (1), and abutment blocks (202) are mounted on the clamps (201) for contacting the cable. A restraint sleeve (203) is slidably mounted on the mounting shell (1). When the restraint sleeve (203) slides to contact the clamps (201), the rotation of the clamps (201) is restricted.
3. The cable connection device according to claim 2, characterized in that, The mounting shell (1) has a threaded hole (204), the restraint sleeve (203) has a hinge rod (205) hinged to it, the mounting shell (1) has a locking rod (208) threaded to the threaded hole (204), a rotating ring (206) is movably mounted on the locking rod (208), the free end of the hinge rod (205) is hinged to the rotating ring (206), a plurality of extension wires (4) are mounted on the top of the hinge rod (205), and a slant plate (207) is mounted on the locking rod (208) to block the rotating ring (206).
4. The cable connection device according to claim 1, characterized in that, Multiple sliding plates (5) are installed on the conductor post (301). Support rods (6) are hinged on the sliding plates (5). The free ends of the support rods (6) are hinged to each other. The support rods (6) are used to contact the inner wall of the conductor sleeve (3). A fuse rod (7) that contacts the conductor post (301) is installed on the inner wall of the conductor sleeve (3).
5. The cable connection device according to claim 3, characterized in that, The clamping plate (201) has an insertion hole (8), and the mounting shell (1) has a reserved plate (9). The reserved plate (9) is equipped with an insertion rod (10) for insertion into the insertion hole (8).
6. The cable connection device according to claim 5, characterized in that, An mounting plate (11) is mounted on the mounting shell (1), and a protective shell (12) is hinged to the mounting plate (11). The protective shell (12) is used to accommodate the clamping plate (201).
7. The cable connection device according to claim 6, characterized in that, The locking rod (208) is equipped with a connecting frame (13) that slides with the mounting shell (1). The connecting frame (13) is equipped with an elastic rod (14). The connecting frame (13) is connected to the mounting plate (11) through the elastic rod (14).
8. The cable connection device according to claim 7, characterized in that, A shielding rod (15) is tightly rotatably mounted on the mounting plate (11). When the shielding rod (15) rotates to contact the protective shell (12), it restricts the rotation of the protective shell (12).
9. The cable connection device according to claim 8, characterized in that, A thickened ring (16) is installed on the mounting shell (1), and the projection of the thickened ring (16) on the mounting shell (1) coincides with the projection of the telescopic bladder (302) on the mounting shell (1).
10. The cable connection device according to claim 4, characterized in that, The fuse rod (7) is installed at an angle inside the conductor sleeve (3).