Built-in elastic connector of cable accessory

Abstract

The invention provides a built-in elastic connector for a cable accessory, and relates to the technical field of cable accessories. The fixing plate is of an annular plate structure. A first plug of a cylindrical structure is arranged on the inner side of the fixing plate in a sliding mode. A lower protection plate of a circular structure is fixedly arranged at the bottom of the outer side of one end of the first plug. An annular groove structure is formed in the inner side of the lower protection plate; the two sides of the bottom of the lower protection plate are each fixedly provided with a gas tank, and the gas tanks are filled with nitrogen dioxide gas. A second sliding rod of a rectangular rod structure is slidably arranged in a rectangular through groove in the inner side of the bottom of the lower protection plate. The top end of the second sliding rod is fixedly provided with a detection block of a wedge-shaped block structure, connection abnormity can be rapidly judged only through visual inspection, the timeliness and convenience of fault detection are greatly improved, the operation and maintenance cost and difficulty are reduced, the problem that connection looseness cannot be conveniently found in real time is solved, and the fault detection efficiency is improved. And the elastic force of the spring cannot be well monitored.

Description

Technical Field

[0001] The present invention relates to the technical field of cable accessories, and in particular to a cable accessory with a built-in elastic connector. Background Art

[0002] The cable elastic connector uses the elastic force of the spring to keep the socket of the terminal tight. When the wire is inserted, the spring produces elastic deformation and applies pressure to the wire, ensuring good contact between the wire and the socket, thereby achieving a stable electrical connection. In the power cable connection in substations, distribution rooms and other places, it is used to achieve reliable connection between cables and equipment, cables and busbars, and ensure stable transmission of electricity.

[0003] After searching, for example, patent number CN222546789U discloses a cable accessory built-in elastic connector, including a connector head, a swivel movably mounted on the outside of the connector head, a conductor connector embedded in the inner cavity of the connector head, and a shell plugged into the left and right sides of the connector head. The cable accessory built-in elastic connector is provided with a reinforcement structure, and the connector body is plugged into the interior of the connector head. The swivel rotates, which drives the annular plate to rotate. When the annular plate rotates, the position of the limit slider changes. The position of the limit slider does not change with the position of the annular plate. The inner wall of the limit slider pushes the limit slider to move, causing the limit slider to push the positioning post and the rubber positioning block to slide inside the positioning plate. The positioning post and the rubber positioning block gradually approach the outside of the shell until the positioning post and the rubber positioning block are plugged into the interior of the positioning groove, firmly fixing the connector body to the inner cavity of the connector head.

[0004] The current elastic connectors also have the following deficiencies: Existing connectors lack intuitive and effective means of monitoring connection status, and mostly rely on manual regular inspections or complex sensor equipment detection. They are unable to detect loose connections in real time and conveniently, and are unable to better monitor the elastic force of the spring. Once the connection is loose, it will lead to increased contact resistance and cause local overheating. In severe cases, it may even cause power outages or signal transmission failures. In addition, troubleshooting is difficult and inefficient. Summary of the Invention

[0005] The present invention relates to a cable accessory with a built-in elastic connector, which solves the problem that the current elastic connector cannot detect loose connections in real time and conveniently, and cannot effectively monitor the elastic force of the spring. Once the connection is loose, it will lead to increased contact resistance, causing local overheating, and in severe cases even causing power outages or signal transmission failures. In addition, the fault detection is difficult and inefficient.

[0006] The present invention provides a cable accessory with a built-in elastic connector, which specifically includes: a fixing plate; the fixing plate adopts a circular ring plate structure; a first plug with a cylindrical structure is slidably provided on the inner side of the fixing plate; a lower guard plate with a circular ring structure is fixedly provided on the outer bottom of one end of the first plug; an annular groove structure is provided on the inner side of the lower guard plate, and a group of water-permeable hole structures are provided on both sides of the bottom of the lower guard plate, and a through-type rectangular through-groove structure is provided on the bottom of the lower guard plate; a group of gas tanks are fixedly provided on both sides of the bottom of the lower guard plate, and the interior of the gas tanks is filled with nitrogen dioxide gas, and a sealing film is provided on the inner side of the top of the gas tanks; a second sliding rod with a rectangular rod structure is slidably provided in the rectangular through-groove on the inner side of the bottom of the lower guard plate, and a spring is provided on the outer side of the second sliding rod; a detection block with a wedge-shaped block structure is fixedly provided on the top of the second sliding rod.

[0007] Furthermore, a first plug with a cylindrical structure is slidably provided on the inner side of the fixed plate; a connecting plate with a rectangular rod structure is rotatably connected on the upper and lower sides of the fixed plate, and a through screw hole structure is provided at one end of the connecting plate, and a through circular through groove structure is provided at the top of the connecting plate; a first sliding rod with a cylindrical structure is slidably provided in the circular through groove at the top of the connecting plate, and a spring is provided on the outer side of the first sliding rod; a clamping block with a wedge-shaped block structure is fixedly provided at the bottom of the first sliding rod.

[0008] Furthermore, a first screw is provided in the screw hole of the connecting plate for rotational connection through threaded cooperation, and a wedge-shaped slot structure is provided on the outer side of the first screw in the shape of a ring array; a side plate with a circular ring structure is fixedly connected between one end of the two groups of connecting plates by the first screw, and a through-type screw hole structure is provided on the upper and lower sides of the side plate.

[0009] Furthermore, a second plug with a cylindrical structure is slidingly provided on the inner side of the side plate, and four groups of penetrating circular through-groove structures are opened on the outer side of the second plug in an annular array, a spring is sleeved on the outer side of the second plug, and a threaded groove structure is opened on the outer side of the second plug; a cable is connected to the internal connection of the second plug; a screw ring with a circular structure is rotatably provided on the outer side of the second plug through threaded cooperation, and a slope structure is opened on one side of the screw ring, and a circular groove structure is opened on one side of the screw ring in an annular array; four groups of top rods of conical rod structures are slidably provided in the circular through-groove on the outer side of the second plug; a limit plate with a circular plate-shaped structure is fixedly provided on the outer side of the second plug, and a penetrating screw hole structure is opened on the top side of the limit plate; a limit rod is rotatably provided in the screw hole on the top side of the limit plate through threaded cooperation.

[0010] Furthermore, an upper guard plate with a semicircular ring structure is fixedly installed on the top of the lower guard plate, and an annular groove structure is provided on the inner side of the upper guard plate; a group of sealing rings with a circular ring structure are fixedly provided on both sides of the inner wall of the lower guard plate, and the outer wall of the sealing ring fits with the inner wall of the upper guard plate; the bottom end of the second sliding rod is fixedly connected to a bottom plate with a rectangular plate structure, and a through-type screw hole structure is provided at both ends of the bottom plate; a second screw is rotatably provided in the screw holes at both ends of the bottom plate through threaded cooperation, and the top end of the second screw adopts a conical structure.

[0011] The present invention provides a cable accessory with a built-in elastic connector, which has the following beneficial effects: The present invention realizes visual monitoring of the cable connection status by arranging a gas tank filled with nitrogen dioxide gas and a detection block, a second sliding rod and other structures cooperating therewith at the bottom of the lower guard plate. When the connection is loose, the spring pushes the detection block to puncture the sealing film of the gas tank, and the reddish-brown gas escapes. The operator does not need to use complex instruments and can quickly determine the connection abnormality by visual observation alone, which greatly improves the timeliness and convenience of fault detection and reduces the cost and difficulty of operation and maintenance.

[0012] The dual-layer waterproof design, featuring upper and lower guard plates with a sealing ring, combined with permeable holes at the bottom of the lower guard plate, creates a complete waterproof system. Even a small amount of water that does enter the connector is quickly drained through the permeable holes. The bottom plate and second screw further compress the sealing ring, enhancing the waterproofing effect. This effectively protects the cable and connector from moisture, extending the device's service life and ensuring stable operation in harsh environments such as wet and underwater environments.

[0013] The linked structure of the screw ring and the push rod enables precise adaptation and strong fastening of cables of different specifications. This ensures a tight connection while avoiding damage to the cable, significantly improving the versatility and applicability of the connector and reducing connection instability caused by varying cable specifications. Furthermore, the clamping block limits the position of the first screw, maintaining a stable connection between the fixed plate and the side panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0016] In the attached figure: Figure 1 Shows a schematic diagram of the overall axial structure of the present invention; Figure 2 Shows a schematic diagram of the overall side structure of the present invention; Figure 3 Shows a schematic diagram of the overall split structure of the present invention; Figure 4 A schematic cross-sectional view of the second plug and the screw ring of the present invention is shown; Figure 5 It shows a schematic diagram of the structure of the present invention when the lower guard plate and the upper guard plate are separated and viewed from above; Figure 6 Shows a schematic cross-sectional structural diagram of the lower guard plate of the present invention; Figure 7 A schematic structural diagram showing the connection relationship between the fixing plate and the side plate of the present invention is shown; Figure 8 The present invention shows Figure 7 Schematic diagram of the locally enlarged structure of A in the middle.

[0017] Reference Signs List 1. Fixing plate; 101. First plug; 102. Connecting plate; 103. First slide bar; 104. Block; 105. First screw; 106. Side plate; 107. Second plug; 108. Cable; 109. Screw ring; 110. Push rod; 111. Limit plate; 112. Limit rod; 2. Lower guard plate; 201. Upper guard plate; 202. Sealing ring; 203. Gas tank; 204. Second slide bar; 205. Detection block; 206. Bottom plate; 207. Second screw. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figures 1 to 8 : The present invention proposes a cable accessory built-in elastic connector, comprising: a fixing plate 1; the fixing plate 1 adopts a circular ring plate structure; a first plug 101 with a cylindrical structure is slidably provided on the inner side of the fixing plate 1; a lower guard plate 2 with a circular ring structure is fixedly provided on the outer bottom of one end of the first plug 101; an annular groove structure is provided on the inner side of the lower guard plate 2, and a group of water-permeable hole structures are provided on both sides of the bottom of the lower guard plate 2, which can discharge the infiltrated water in time, and a through-type rectangular through-groove structure is provided on the bottom of the lower guard plate 2; a group of gas tanks 203 are fixedly provided on both sides of the bottom of the lower guard plate 2, and the interior of the gas tank 203 is filled with nitrogen dioxide gas, and a sealing is provided on the inner side of the top of the gas tank 203 Membrane; a second slide bar 204 with a rectangular rod structure is slidably provided in the rectangular through groove on the inner side of the bottom of the lower guard plate 2, and a spring is sleeved on the outer side of the second slide bar 204; a detection block 205 with a wedge-shaped block structure is fixedly provided on the top of the second slide bar 204. When the cable connection becomes loose, the second slide bar 204 sliding in the rectangular through groove on the inner side of the bottom of the lower guard plate 2 is displaced under the action of the spring sleeved on the outer side, and the wedge-shaped detection block 205 on the top of the second slide bar 204 moves upward, puncturing the sealing membrane on the top of the gas tank 203, and the nitrogen dioxide gas leaks. Since nitrogen dioxide is a reddish-brown gas, the operator can intuitively judge whether the cable connection is abnormal by the color change, thereby realizing visual detection of the connection status.

[0020] Among them, the top of the lower guard plate 2 is fixedly installed with an upper guard plate 201 of a semicircular ring structure, and the inner side of the upper guard plate 201 is provided with an annular groove structure; a group of sealing rings 202 of a circular ring structure are fixedly provided on both sides of the inner wall of the lower guard plate 2, and the outer wall of the sealing ring 202 fits with the inner wall of the upper guard plate 201, and the outer wall of the sealing ring 202 fits with the inner wall of the upper guard plate 201, effectively preventing moisture from seeping into the connection. If moisture seeps into the inner side of the upper guard plate 201 and the lower guard plate 2, it will be retained on the outside of the sealing ring 202 and the infiltrated rainwater will be drained through the water-permeable holes at the bottom of the lower guard plate 2; the bottom end of the second sliding rod 204 is fixedly connected to a bottom plate 206 with a rectangular plate structure, and both ends of the bottom plate 206 are provided with a through-type screw hole structure; second screws 207 are rotatably provided in the screw holes at both ends of the bottom plate 206 through threaded cooperation, and the top of the second screw 207 adopts a conical structure.

[0021] The working principle of this embodiment is as follows: A lower guard plate 2 is placed at the outer bottom of the connection between the second plug 107 and the first plug 101, and an upper guard plate 201 is installed above the lower guard plate 2 by bolts. The cooperation between the lower guard plate 2 and the upper guard plate 201 protects the connection between the second plug 107 and the first plug 101. On the one hand, water is prevented from entering the connection between the second plug 107 and the first plug 101. If moisture penetrates into the inner side of the upper guard plate 201 and the lower guard plate 2, it will be retained on the outside of the sealing ring 202 and drained through the water-permeable holes at the bottom of the lower guard plate 2, thereby increasing the waterproof ability of the connection between the second plug 107 and the first plug 101. On the other hand, during use, the state of the gas tank 203 at the bottom of the lower guard plate 2 is regularly observed. If the spring force is reduced, the second When a gap appears and becomes loose at the connection between the first plug 101 and the second plug 107, under the action of the spring on the outer side of the second slide bar 204, the push detection block 205 moves upward and is stuck in the gap at the connection between the first plug 101 and the second plug 107. At this time, the second slide bar 204 drives the bottom plate 206 and the second screw 207 to slide upward, and pierces the sealing film of the gas tank 203 through the top of the second screw 207, so that the gas in the gas tank 203 reacts with oxygen and generates a reddish-brown gas that overflows from the bottom of the lower guard plate 2. The loosening of the first plug 101 and the second plug 107 can be discovered in time, and the power supply needs to be immediately turned off to check and retighten the connection parts, so that the operating status of the spring and the device can be continuously monitored to ensure the normal operation process.

[0022] Example 2, based on Example 1, Figure 1 Figure 8 As shown: Among them, a first plug 101 with a cylindrical structure is slidably provided on the inner side of the fixed plate 1; a connecting plate 102 with a rectangular rod structure is rotatably connected on the upper and lower sides of the fixed plate 1, and one end of the connecting plate 102 is provided with a through screw hole structure, and the top of the connecting plate 102 is provided with a through circular groove structure; a first sliding rod 103 with a cylindrical structure is slidably provided in the circular groove at the top of the connecting plate 102, and a spring is provided on the outer side of the first sliding rod 103; a wedge-shaped block structure is fixedly provided at the bottom of the first sliding rod 103.

[0023] Among them, a first screw 105 is provided in the screw hole of the connecting plate 102 through threaded cooperation and rotation connection, and a wedge-shaped slot structure is provided on the outer side of the first screw 105 in a ring array; a side plate 106 with a circular ring structure is fixedly connected between one end of the two groups of connecting plates 102 by the first screw 105, and a through-type screw hole structure is provided on the upper and lower sides of the side plate 106.

[0024] Among them, a second plug 107 of a cylindrical structure is slidably provided on the inner side of the side plate 106, and the outer side of the second plug 107 is provided with four groups of through-type circular through-grooves in an annular array, a spring is sleeved on the outer side of the second plug 107, and a threaded groove structure is provided on the outer side of the second plug 107; a cable 108 is provided for connection inside the second plug 107; a screw ring 109 of an annular structure is provided on the outer side of the second plug 107 through a threaded fit, and a bevel structure is provided on one side of the screw ring 109, and a circular groove structure is provided on one side of the screw ring 109 in an annular array. ; Four groups of top rods 110 with conical rod structures are slidingly arranged in a circular array in the circular through groove on the outside of the second plug 107. When the screw ring 109 is rotated, the top rod 110 extends along the circular through groove on the outside of the second plug 107, so that the inner end of the top rod 110 is inserted into the cable 108, thereby enhancing the stability of the connection of the cable 108; A limiting plate 111 with a circular plate structure is fixedly provided on the outside of the second plug 107, and a through-type screw hole structure is opened on the top side of the limiting plate 111; A limiting rod 112 is rotatably arranged in the screw hole on the top side of the limiting plate 111 through threaded cooperation.

[0025] The working principle of this embodiment is as follows: 108 , and then the first plug 107 is connected to the second plug 107. 01 is inserted into the second plug 107, and the two sets of connecting plates 102 are rotated along the upper and lower sides of the fixing plate 1 so that the screw holes at one end of the connecting plate 102 are aligned with the screw holes on the side plate 106, and then the connecting plate 102 is fixedly connected to the side plate 106 through the first screw 105, thereby fixing the side plate 106 and the fixing plate 1. The block 104 at the bottom of the first sliding rod 103 will be stuck into the wedge-shaped groove on the outside of the first screw 105 under the action of the spring, limiting the first screw 105 and maintaining the fixing effect of the first screw 105 on the side plate 106. After the installation is completed, the second plug 107 is pressurized by the spring between the side plate 106 and the limiting plate 111 to maintain the connection stability of the second plug 107 and the first plug 101.

Claims

1. A cable accessory with a built-in elastic connector, characterized in that: include: Fixed plate; The fixed plate adopts a circular ring plate structure; A first plug with a cylindrical structure is slidably provided on the inner side of the fixed plate; a lower guard plate with a circular ring structure is fixedly provided on the outer bottom of one end of the first plug; an annular groove structure is provided on the inner side of the lower guard plate, and a group of water-permeable hole structures are provided on both sides of the bottom of the lower guard plate, and a through-type rectangular through-groove structure is provided on the bottom of the lower guard plate; a group of gas tanks are fixedly provided on both sides of the bottom of the lower guard plate, and the interior of the gas tanks is filled with nitrogen dioxide gas, and a sealing film is provided on the inner side of the top of the gas tanks; a second sliding rod with a rectangular rod structure is slidably provided in the rectangular through-groove on the inner side of the bottom of the lower guard plate, and a spring is provided on the outer side of the second sliding rod; a detection block with a wedge-shaped block structure is fixedly provided on the top of the second sliding rod.

2. A cable accessory with a built-in elastic connector according to claim 1, characterized in that: A first plug with a cylindrical structure is slidably provided on the inner side of the fixing plate; the upper and lower sides of the fixing plate are rotatably connected to a connecting plate with a rectangular rod structure, and one end of the connecting plate is provided with a through screw hole structure, and the top of the connecting plate is provided with a through circular groove structure.

3. A cable accessory with a built-in elastic connector according to claim 2, characterized in that: A first slide bar with a cylindrical structure is slidably arranged in the circular through groove on the top of the connecting plate, and a spring is sleeved on the outer side of the first slide bar; a clamping block with a wedge-shaped block structure is fixedly arranged at the bottom of the first slide bar.

4. A cable accessory with a built-in elastic connector according to claim 2, characterized in that: A first screw is provided in the screw hole of the connecting plate through threaded cooperation and rotation connection, and a wedge-shaped slot structure is provided on the outer side of the first screw in the shape of an annular array; a side plate with a circular ring structure is fixedly connected between one end of the two groups of connecting plates by the first screw, and a through screw hole structure is provided on the upper and lower sides of the side plate.

5. A cable accessory with a built-in elastic connector according to claim 4, characterized in that: A second plug with a cylindrical structure is slidably provided on the inner side of the side plate, and four groups of penetrating circular through-grooves are provided on the outer side of the second plug in a circular array. A spring is sleeved on the outer side of the second plug, and a threaded groove structure is provided on the outer side of the second plug; a cable is provided for internal connection of the second plug; a screw ring with a circular structure is rotatably provided on the outer side of the second plug through threaded fitting, and a slope structure is provided on one side of the screw ring, and a circular groove structure is provided on one side of the screw ring in a circular array.

6. A cable accessory with a built-in elastic connector according to claim 5, characterized in that: Four groups of top rods with conical rod structures are slidingly arranged in a ring array in the circular through groove on the outside of the second plug; a limit plate with a circular plate structure is fixedly arranged on the outside of the second plug, and a through screw hole structure is opened on the top side of the limit plate; a limit rod is rotatably arranged in the screw hole on the top side of the limit plate through threaded cooperation.

7. The cable accessory with built-in elastic connector according to claim 1, characterized in that: An upper guard plate with a semicircular ring structure is fixedly installed on the top of the lower guard plate, and an annular groove structure is opened on the inner side of the upper guard plate; a group of sealing rings with a circular ring structure are fixedly installed on both sides of the inner wall of the lower guard plate, and the outer wall of the sealing ring fits with the inner wall of the upper guard plate.

8. The cable accessory with built-in elastic connector according to claim 1, characterized in that: The bottom end of the second sliding rod is fixedly connected to a base plate with a rectangular plate structure, and both ends of the base plate are provided with a through-type screw hole structure; the screw holes at both ends of the base plate are rotatably provided with a second screw rod through threaded cooperation, and the top end of the second screw rod adopts a conical structure.

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