An exterior wall cable sealing puncture clamp block
The external wall cable sealing piercing clamp, with its multi-stage transmission structure and dual clamping design, solves the problem of over-piercing and cable damage, achieving safe and reliable cable connection and long-term stable power supply, and reducing the risks and operational complexity of high-altitude operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG ZHUXING CONSTR ENG CO LTD
- Filing Date
- 2026-03-06
- Publication Date
- 2026-05-29
AI Technical Summary
Existing external wall cable piercing clamps lack buffer and limit designs, which can easily lead to over-piercing and damage to the cable conductor and insulation layer, affecting power supply stability and posing safety hazards. The operation process is cumbersome and has low safety, increasing construction risks when working at heights.
The piercing mechanism, which employs a multi-stage transmission structure, combined with a limiting and locking mechanism, uses the cooperation of a lead screw, gears, and a rotating rod to achieve smooth lifting and lowering of the piercing rod and initial fixation of the cable, ensuring cable safety. It also resists external forces through a double clamping structure, simplifying the operation process.
It effectively ensures the reliability of electrical connections after cable puncture, reduces construction risks, ensures the long-term stability and safety of power supply connections, simplifies high-altitude operation procedures, and reduces operational intensity and safety risks.
Smart Images
Figure CN122118388A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cable fixing device technology, specifically to an external wall cable sealing and puncture clamp. Background Technology
[0002] The exterior wall cable sealing piercing clamp is a multi-functional component designed specifically for the laying and connection of cables on building exterior walls. Its core function is to achieve three core functions of cable conductive connection, mechanical fixation, and environmental sealing without cutting the cable. At the same time, it can adapt to the complex outdoor environment of exterior walls (such as rain, dust, temperature difference, and ultraviolet rays) to ensure the safe and stable operation of the cable system. In the scenario of cable laying and branch connection on building exterior walls, the piercing clamp is the core device to achieve electrical connection of cables without stripping the insulation layer.
[0003] However, existing external wall cable piercing clamps have shortcomings. Traditional piercing structures mostly rely on manual direct pressing or simple threaded transmission, lacking buffer and limit design. This can easily lead to over-piercing, damaging the cable conductor and breaking through the insulation layer, affecting power supply stability and posing safety hazards. Moreover, the operation process is cumbersome and has low safety. When working at heights, multiple steps not only reduce construction efficiency but also increase the risk of falls and misoperation. Summary of the Invention
[0004] The purpose of this invention is to provide an external wall cable sealing piercing clamp to solve the shortcomings of existing external wall cable piercing clamps mentioned in the background art. Traditional piercing structures mostly rely on manual direct pressing or simple thread transmission, lacking buffer and limit design, which can easily lead to over-piercing, damaging the cable conductor and breaking through the insulation layer, affecting power supply stability and posing safety hazards. Moreover, the operation process is cumbersome and has low safety. When working at height, the multi-step operation not only reduces construction efficiency but also increases the risk of falls and misoperation.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an external wall cable sealing and puncture clamp, comprising a first protective shell and a second protective shell, wherein the second protective shell is provided below the outer wall of the first protective shell, and further comprising: Puncture Mechanism: The puncture mechanism is disposed inside the first protective shell. The puncture mechanism includes a lead screw rotatably connected to the inner wall of the first protective shell. A first gear is fixedly connected to the middle of the outer wall of the lead screw. Second gears are respectively meshed on the left and right sides of the outer wall of the first gear. A rotating rod is fixedly connected to the bottom of the outer wall of the second gear. A puncture rod is provided inside the rotating rod. A spring is provided at the connection between the top of the outer wall of the puncture rod and the inner wall of the rotating rod. Limit blocks are fixedly connected to the left and right sides of the outer wall of the puncture rod. Limit grooves are opened at the corresponding positions of the inner wall of the rotating rod and the limit blocks. A puncture head is fixedly connected to the bottom of the outer wall of the puncture rod. An injection port is opened inside the lead screw. An installation cap is provided at the top of the lead screw. Limiting mechanism: The limiting mechanism is disposed on the lower part of the outer wall of the lead screw; Locking mechanism: The locking mechanism is disposed on the front and rear sides of the first protective shell and the second protective shell.
[0006] Furthermore, the puncture rod is elastically connected to the rotating rod, and the limiting block is slidably connected to the rotating rod.
[0007] Furthermore, the limiting mechanism includes a first positioning block disposed on the lower part of the outer wall of the lead screw, and a second positioning block is fixedly connected to the inner wall of the second protective shell.
[0008] Furthermore, the first positioning block and the second positioning block have corresponding placement grooves on their outer walls, and the rotating rod is threadedly connected to the first positioning block.
[0009] Furthermore, the limiting mechanism also includes a fixing rod that is fixedly connected to the inner wall of the first protective shell, and the fixing rod has a tapered rod inside.
[0010] Furthermore, the outer wall of the fixed rod is provided with a telescopic groove, and the inner wall of the fixed rod is provided with an insertion groove corresponding to the conical rod.
[0011] Furthermore, the fixing rod is slidably connected to the first positioning block, and the tapered rod is fixedly connected to the second protective shell.
[0012] Furthermore, the locking mechanism includes a first connecting pipe disposed on the front and rear sides of the outer wall of the first protective shell, a second connecting pipe disposed below the outer wall of the first connecting pipe, and the second connecting pipe being fixedly connected to the front and rear sides of the outer wall of the second protective shell.
[0013] Furthermore, a rotating cylinder is sleeved on the outer wall of the first connecting pipe and the second connecting pipe, and a limiting ring is provided on the inner wall of the rotating cylinder.
[0014] Furthermore, a fixing block is fixedly connected to the inner wall of the first connecting pipe and the second connecting pipe, and a through groove is opened on the outer wall of the first connecting pipe and the second connecting pipe.
[0015] This invention provides an external wall cable sealing and puncture clamp, which has the following beneficial effects: 1. This invention, by setting up a piercing mechanism, allows workers to drive a multi-stage transmission structure consisting of a lead screw, a first gear, a second gear, and a rotating rod, to achieve smooth lifting and lowering of the piercing rod. The spring between the piercing rod and the rotating rod can buffer the piercing force, preventing the piercing head from damaging the cable conductor or insulation layer. The limiting block ensures that the piercing rod rotates synchronously with the rotating rod, preventing piercing deviation from causing poor contact, effectively ensuring the reliability of the electrical connection after cable piercing and the safety of the cable itself. 2. This invention, by setting a limiting mechanism, allows the screw to rotate and drive the first positioning block to descend while the worker is performing the piercing operation. The first positioning block and the second positioning block together clamp the cable through their anti-groove, initially fixing the cable position. The first positioning block presses against the fixing rod, causing the telescopic groove of the fixing rod to tighten and apply pressure to the tapered rod. By utilizing the fixed relationship between the fixing rod and the first protective shell, and the tapered rod and the second positioning block, the first and second protective shells are locked internally simultaneously. There is no need to operate the protective shell locking step separately. The piercing, cable clamping and protective shell locking are integrated into the action of screw rotation, reducing high-altitude operations and lowering the operational intensity and safety risks. 3. By setting up a locking mechanism, the locking mechanism of the outer wall of the first protective shell and the second protective shell and the internal limiting mechanism form a double clamp during installation. The internal positioning block placement groove clamps the cable from inside the protective shell, restricting radial displacement. The operator can rotate the rotating cylinder to retract the connecting pipe through groove, forming a tight clamp on the cable from outside the protective shell. This effectively resists external forces such as wind load vibration of the external wall and accidental pulling, preventing cable displacement and damage to the internal puncture structure, and ensuring long-term stable power supply connection. Attached Figure Description
[0016] Figure 1 This is a first-view three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the separation structure of the first connecting pipe, the second connecting pipe, and the rotating cylinder in this invention; Figure 3 This is a schematic diagram of the separation structure of the first protective shell and the second protective shell from a first-view perspective in this invention; Figure 4 This is a schematic diagram of the separation structure of the first protective shell and the second protective shell from a second perspective in this invention; Figure 5 This is a schematic diagram of the structure in this invention where the cap and lead screw are separated. Figure 6 This is a schematic diagram of the internal structure of the first protective shell in this invention; Figure 7 This is a schematic diagram of the internal structure of the second protective shell in this invention; Figure 8 This is a schematic diagram of the separation structure of the first positioning block and the second positioning block in this invention; Figure 9 This is a schematic diagram of the separation structure of the rotating rod and the puncture rod in this invention; Figure 10 This is a schematic diagram of the separation structure of the fixed rod and the tapered rod in this invention.
[0017] In the diagram: 1. First protective shell; 2. Second protective shell; 3. Lead screw; 4. First gear; 5. Second gear; 6. Rotating rod; 7. Puncture rod; 8. Spring; 9. Limiting block; 10. Limiting groove; 11. Puncture head; 12. Injection port; 13. Mounting cap; 14. First positioning block; 15. Second positioning block; 16. Placement groove; 17. Fixing rod; 18. Tapered rod; 19. Telescopic groove; 20. Insertion groove; 21. First connecting pipe; 22. Second connecting pipe; 23. Rotating cylinder; 24. Limiting ring; 25. Fixing block; 26. Through groove. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Please see Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 An external wall cable sealing puncture clamp includes a first protective shell 1 and a second protective shell 2, wherein the second protective shell 2 is provided below the outer wall of the first protective shell 1, and further includes: Puncture Mechanism: The puncture mechanism is located inside the first protective shell 1. The puncture mechanism includes a lead screw 3 rotatably connected to the inner wall of the first protective shell 1. A first gear 4 is fixedly connected to the middle of the outer wall of the lead screw 3. A second gear 5 is meshed with the left and right sides of the outer wall of the first gear 4. A rotating rod 6 is fixedly connected to the bottom of the outer wall of the second gear 5. A puncture rod 7 is provided inside the rotating rod 6. A spring 8 is provided at the connection between the top of the outer wall of the puncture rod 7 and the inner wall of the rotating rod 6. Limiting blocks 9 are fixedly connected to the left and right sides of the outer wall of the puncture rod 7. Limiting grooves 10 are opened at the corresponding positions of the inner wall of the rotating rod 6 and the limiting blocks 9. A puncture head 11 is fixedly connected to the bottom of the outer wall of the puncture rod 7. An injection port 12 is opened inside the lead screw 3. An installation cap 13 is provided at the top of the lead screw 3. Limiting mechanism: The limiting mechanism is located on the lower part of the outer wall of the lead screw 3; Locking mechanism: The locking mechanism is located on the front and rear sides of the first protective shell 1 and the second protective shell 2.
[0020] The puncture rod 7 is elastically connected to the rotating rod 6, and the limiting block 9 is slidably connected to the rotating rod 6; The operation is as follows: First, place the first protective shell 1 and the second protective shell 2 on the outer wall of the cable section to be pierced. Then, place the connecting wire and the cable into the placement groove 16 respectively. Subsequently, the operator manually rotates the screw 3, driving the first gear 4 to rotate. At the same time, the second gear 5 rotates accordingly, and the rotating rod 6 rotates synchronously. At this time, the piercing rod 7 rotates synchronously under the action of the limiting block 9 and the limiting groove 10. At this time, the piercing head 11 performs piercing operation on the cable and the connecting wire. When the piercing reaches the appropriate position, the piercing head 11 pierces the cable sheath. At this time, the spring 8... The reset action causes the piercing rod 7 to retract, preventing it from piercing too far and damaging the inside of the cable. The piercing mechanism is designed so that the operator can drive the multi-stage transmission structure of the lead screw 3, the first gear 4, the second gear 5, and the rotating rod 6 to achieve smooth raising and lowering of the piercing rod 7. The spring 8 between the piercing rod 7 and the rotating rod 6 can buffer the piercing force and prevent the piercing head 11 from damaging the cable conductor or insulation layer. The limit block 9 ensures that the piercing rod 7 rotates synchronously with the rotating rod 6 to prevent piercing deviation from causing poor contact, effectively ensuring the reliability of the electrical connection after cable piercing and the safety of the cable itself. Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 The limiting mechanism includes a first positioning block 14 disposed on the lower part of the outer wall of the lead screw 3, a second positioning block 15 fixedly connected to the inner wall of the second protective shell 2, a placement groove 16 opened at the corresponding position of the outer wall of the first positioning block 14 and the second positioning block 15, and a rotating rod 6 threadedly connected to the first positioning block 14. The limiting mechanism also includes a fixing rod 17 fixedly connected to the inner wall of the first protective shell 1, a tapered rod 18 provided inside the fixing rod 17, a telescopic groove 19 opened on the outer wall of the fixing rod 17, an insertion groove 20 opened at the corresponding position of the inner wall of the fixing rod 17 and the tapered rod 18, the fixing rod 17 slidably connected to the first positioning block 14, and the tapered rod 18 fixedly connected to the second protective shell 2. The operation is as follows: the first positioning block 14, under the action of the lead screw 3, moves closer to the second positioning block 15. At this time, pressure is applied to the outer wall of the cable and connecting wire to limit their movement and prevent deviation during piercing. Simultaneously, the first positioning block 14 applies pressure to the outer wall of the fixing rod 17 during downward pressing, while the telescopic groove 19 contracts. The fixing rod 17 applies pressure to the outer wall of the tapered rod 18, causing the first protective shell 1 and the second protective shell 2 to be locked together from the inside. This allows the operator to perform the piercing operation simultaneously. The rotation of the lead screw 3 causes the first positioning block 14 to descend, which, together with the anti-groove of the second positioning block 15, clamps the cable and initially fixes the cable position. The first positioning block 14 presses the fixing rod 17, causing the telescopic groove 19 of the fixing rod 17 to contract and apply pressure to the tapered rod 18. With the fixed relationship between the fixing rod 17 and the first protective shell 1, and the tapered rod 18 and the second positioning block 15, the first protective shell 1 and the second protective shell 2 are locked internally at the same time. There is no need to operate the protective shell locking step separately. The piercing, cable clamping and protective shell locking are integrated into the action of the lead screw 3 rotation, reducing the high-altitude operation links and reducing the operation intensity and safety risks. Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The locking mechanism includes a first connecting pipe 21 disposed on the front and rear sides of the outer wall of the first protective shell 1, a second connecting pipe 22 disposed below the outer wall of the first connecting pipe 21, the second connecting pipe 22 being fixedly connected to the front and rear sides of the outer wall of the second protective shell 2, a rotating cylinder 23 sleeved on the outer wall of the first connecting pipe 21 and the second connecting pipe 22, a limiting ring 24 disposed on the inner wall of the rotating cylinder 23, a fixing block 25 fixedly connected to the inner wall of the first connecting pipe 21 and the second connecting pipe 22, and a through groove 26 opened on the outer wall of the first connecting pipe 21 and the second connecting pipe 22; The specific operation is as follows: the worker injects anti-oxidation gel into the injection port 12, then manually installs the installation cap 13, and finally manually rotates the rotating cylinder 23. At this time, the limiting ring 24 applies pressure to the outer wall of the first connecting pipe 21 and the second connecting pipe 22, while the through groove 26 contracts and the fixing block 25 applies pressure to the outer wall of the cable to prevent external forces from displacing the cable and damaging the internal piercing structure, thus ensuring the long-term stability of the power supply connection. During installation, the locking mechanism of the outer wall of the first protective shell 1 and the second protective shell 2 and the internal limiting mechanism form a double clamp. The internal positioning block placement groove 16 clamps the cable from inside the protective shell, limiting radial displacement. The worker can rotate the rotating cylinder 23 to make the through groove 26 of the connecting pipe contract, forming a tight clamp on the cable from outside the protective shell, effectively resisting external forces such as wind load vibration of the external wall and accidental pulling, preventing the cable from displacing and damaging the internal piercing structure, and ensuring the long-term stability of the power supply connection.
[0021] Working principle: When workers need to pierce and connect cables on the outer wall, they first place the first protective shell 1 and the second protective shell 2 on the outer wall of the cable section to be pierced. Then, the connecting wire and the cable are placed in the placement groove 16 respectively. The workers then manually turn the screw 3, which drives the first gear 4 to rotate. At the same time, the second gear 5 rotates, and the rotating rod 6 rotates synchronously. At this time, the piercing rod 7 rotates synchronously under the action of the limiting block 9 and the limiting groove 10. At this time, the piercing head 11 pierces the cable and the connecting wire. When the piercing reaches the appropriate position, the piercing head 11 pierces the cable sheath. At this time, the spring 8 performs a reset action, which drives the piercing rod 7 to retract, preventing it from piercing too far and causing damage to the inside of the cable. During the piercing operation, the first positioning block 14 is acted upon by the lead screw 3 and moves closer to the second positioning block 15. At this time, the outer wall of the cable and connecting wire is pressure tested and limited to prevent deviation during the piercing process. Simultaneously, the first positioning block 14 applies pressure to the outer wall of the fixing rod 17 during the downward pressing process, while the telescopic groove 19 contracts. The fixing rod 17 applies pressure to the outer wall of the tapered rod 18, so that the first protective shell 1 and the second protective shell 2 are locked together from the inside. When the puncture operation is completed, the worker injects anti-oxidation gel into the injection port 12, then manually installs the installation cap 13, and finally manually rotates the rotating cylinder 23. At this time, the limiting ring 24 applies pressure to the outer wall of the first connecting pipe 21 and the second connecting pipe 22, while the through groove 26 contracts and the fixing block 25 applies pressure to the outer wall of the cable to prevent external forces from displacing the cable and damaging the internal puncture structure, thus ensuring long-term stable power supply connection.
[0022] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0023] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A cable sealing and puncture clamp for external walls, comprising a first protective shell (1) and a second protective shell (2), wherein the second protective shell (2) is provided below the outer wall of the first protective shell (1), characterized in that, Also includes: Puncture mechanism: The puncture mechanism is located inside the first protective shell (1). The puncture mechanism includes a lead screw (3) rotatably connected to the inner wall of the first protective shell (1). A first gear (4) is fixedly connected to the middle of the outer wall of the lead screw (3). A second gear (5) is meshed with the left and right sides of the outer wall of the first gear (4). A rotating rod (6) is fixedly connected to the bottom of the outer wall of the second gear (5). A puncture rod (7) is provided inside the rotating rod (6). A spring (8) is provided at the connection between the top of the outer wall of the puncture rod (7) and the inner wall of the rotating rod (6). Limit blocks (9) are fixedly connected to the left and right sides of the outer wall of the puncture rod (7). A limit groove (10) is opened at the corresponding position of the inner wall of the rotating rod (6) and the limit block (9). A puncture head (11) is fixedly connected to the bottom of the outer wall of the puncture rod (7). An injection port (12) is opened inside the lead screw (3). An installation cap (13) is provided at the top of the lead screw (3). Limiting mechanism: The limiting mechanism is located on the lower part of the outer wall of the lead screw (3); Locking mechanism: The locking mechanism is located on the front and rear sides of the first protective shell (1) and the second protective shell (2).
2. The external wall cable sealing puncture clamp according to claim 1, characterized in that, The puncture rod (7) is elastically connected to the rotating rod (6), and the limiting block (9) is slidably connected to the rotating rod (6).
3. The external wall cable sealing puncture clamp according to claim 1, characterized in that, The limiting mechanism includes a first positioning block (14) disposed on the lower part of the outer wall of the lead screw (3), and a second positioning block (15) is fixedly connected to the inner wall of the second protective shell (2).
4. The external wall cable sealing puncture clamp according to claim 3, characterized in that, The first positioning block (14) and the second positioning block (15) have corresponding placement grooves (16) on their outer walls, and the rotating rod (6) is threadedly connected to the first positioning block (14).
5. The external wall cable sealing puncture clamp according to claim 3, characterized in that, The limiting mechanism also includes a fixing rod (17) fixedly connected to the inner wall of the first protective shell (1), and the fixing rod (17) is provided with a tapered rod (18) inside.
6. The external wall cable sealing puncture clamp according to claim 5, characterized in that, The outer wall of the fixed rod (17) is provided with a telescopic groove (19), and the inner wall of the fixed rod (17) is provided with an insertion groove (20) corresponding to the conical rod (18).
7. The external wall cable sealing puncture clamp according to claim 6, characterized in that, The fixed rod (17) is slidably connected to the first positioning block (14), and the tapered rod (18) is fixedly connected to the second protective shell (2).
8. The external wall cable sealing puncture clamp according to claim 1, characterized in that, The locking mechanism includes a first connecting pipe (21) disposed on the front and rear sides of the outer wall of the first protective shell (1), and a second connecting pipe (22) disposed below the outer wall of the first connecting pipe (21), and the second connecting pipe (22) is fixedly connected to the front and rear sides of the outer wall of the second protective shell (2).
9. The external wall cable sealing puncture clamp according to claim 8, characterized in that, The outer walls of the first connecting pipe (21) and the second connecting pipe (22) are fitted with rotating cylinders (23), and the inner walls of the rotating cylinders (23) are fitted with limiting rings (24).
10. The external wall cable sealing piercing clamp according to claim 9, characterized in that, The first connecting pipe (21) and the inner wall of the second connecting pipe (22) are fixedly connected with a fixing block (25), and the outer wall of the first connecting pipe (21) and the second connecting pipe (22) is provided with a through groove (26).