A strain clamp shield
By designing a tension clamp protective cover that is easy to install and remove, and by using installation tools and transparent materials, the problems of inconvenient installation and removal and safety hazards of traditional tension clamp protective covers have been solved, thus achieving safe and efficient line inspection and protection.
Patent Information
- Application Number
- CN202522118495.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Traditional tension clamp protective covers require construction workers to manually open them using a lift or ladder, which can easily lead to falls and electric shocks, causing injuries and fatalities. Furthermore, they are inconvenient to install and remove and make it impossible to directly observe the condition of the line.
Design a tension clamp protective cover comprising an upper cover and a lower cover. It can be opened from the cut using installation tools to avoid working at height. It is made of transparent material for easy observation. It is equipped with clearance holes and baffles for easy disassembly and assembly. A temperature sensor is installed for monitoring.
It enables convenient disassembly and assembly without the need for high-altitude operations, improves safety, facilitates observation of line conditions, ensures comprehensive protection of cables and tension ropes, and reduces the risk of personnel injury or death.
Smart Images

Figure CN224683815U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical equipment protection technology, and in particular to a tension clamp protective cover. Background Technology
[0002] Tension clamps are widely used on tension towers in overhead power transmission, substation, and distribution systems to fix and tighten cables, ensuring the safe and reliable operation of the power grid. Tension clamp protective covers are used on the tension clamps and the cables they fix and tighten, preventing accidents caused by accidental contact by construction personnel. Traditional tension clamp protective covers are difficult to install and remove, requiring the removal of all incoming and outgoing connecting wires before disassembling the insulating protective cover. Furthermore, the inconvenience of removing the insulating protective cover prevents maintenance personnel from directly observing whether exposed wiring points are cracked, burned, corroded, etc., during routine inspections, causing many inconveniences to normal line maintenance.
[0003] To this end, patent number 202123005920.7 discloses an insulation protection cover assembly for a power distribution system, which designs the tension clamp insulation cover as an openable cover structure, so that maintenance personnel can open the insulation protection cover during daily inspections.
[0004] However, the aforementioned tension clamp protective cover requires construction workers to open it manually using a lift or ladder, which can easily lead to falls and electric shocks, resulting in injuries or fatalities.
[0005] Therefore, it is necessary to propose a new type of tension clamp protective cover to solve the above problems. The traditional tension clamp protective cover requires construction workers to open it by hand using a hoist or ladder, which is prone to falling, electric shock, and injury or death. Summary of the Invention
[0006] This utility model provides a tension clamp protective cover, which solves the problem that traditional tension clamp protective covers require construction workers to open them by hand using a lift or ladder, which can easily lead to falls, electric shocks, and injuries.
[0007] The technical problem solved by this utility model is achieved by the following technical solution: A tension clamp protective cover includes an upper cover for accommodating a horizontal support groove for the tension clamp, and a lower cover for accommodating an oblique support groove for the tension clamp. The upper cover extends horizontally, and the lower cover extends obliquely downward. The top of the lower cover is connected to the bottom of the upper cover. The upper cover has a wire inlet and a clearance hole at both ends, respectively. The bottom of the lower cover has a wire outlet. The bottom of the upper cover and the lower cover have slits. The slits extend from the bottom of the wire inlet to the wire outlet and from the wire outlet to the bottom of the clearance hole.
[0008] Furthermore, through holes for receiving the clamp ends of the installation tools are provided on both sides of the joint between the outer wall of the upper cover and the outer wall of the lower cover.
[0009] Furthermore, a recess is provided at the through hole.
[0010] Furthermore, the top of the relief hole is provided with slots extending to both sides, thereby forming baffles on both sides of the relief hole.
[0011] Furthermore, it also includes a baffle plate made of elastic material. The bottom of the upper cover has an opening near the inlet, and the baffle plate is fixed on both sides of the opening.
[0012] Furthermore, the opening is provided with a locking hole, the baffle is provided with a locking block, and the baffle and the opening are fixedly connected by the locking block and the locking hole.
[0013] Furthermore, the front end of the baffle plate is chamfered near the cut.
[0014] Furthermore, the slit in the lower cover gradually widens towards the opening.
[0015] Furthermore, the slit in the lower cover gradually widens towards the relief hole.
[0016] Furthermore, it also includes a mounting hole for mounting a temperature sensor, the mounting hole being located on the side wall of the lower cover.
[0017] The beneficial effects of this utility model are: This invention utilizes an elastic material for the protective cover. The protective cover includes an upper cover for accommodating a horizontal support groove for the tension clamp, and a lower cover for accommodating an inclined support groove for the tension clamp. The upper cover extends horizontally, and the lower cover extends obliquely downwards. The top of the lower cover is connected to the bottom of the upper cover. The upper cover has a wire inlet and a clearance hole at both ends, and the lower cover has a wire outlet at its bottom. Both the bottom of the upper cover and the lower cover have slits that extend from the bottom of the wire inlet to the wire outlet and from the wire outlet to the bottom of the clearance hole. In use, an installation tool with a long rod is used to open the tension clamp protective cover through the slits. The top of the upper cover bends, and then the tension clamp is opened from the wire inlet. The upper cover covers the horizontal support groove of the tension clamp, while the lower cover covers the slanted support groove. This allows the tension rope to pass through the clearance hole, the incoming line to pass through the inlet, and the outgoing line to pass through the outlet. The installation tool is then released, and the tension clamp protective cover closes. This provides comprehensive protection for the tension clamp, the cable it holds, and the tension rope connected to it. Removal is simple: just open the cover with the installation tool through the cut, eliminating the need for high-altitude work or manual disassembly. This solves the problem of traditional tension clamp protective covers requiring workers to use lifts or ladders to open them manually, which could lead to falls, electric shocks, and injuries. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is a perspective view of the present invention.
[0020] Figure 2 This is an exploded view of the present invention.
[0021] Figure 3 This is a perspective view of the present invention from another angle.
[0022] Figure 4 This is a cross-sectional view of the present invention.
[0023] in: 1-Upper cover, 10-Opening, 11-Hook hole, 2-Lower cover, 20-Mounting hole, 3-Cable inlet, 4-Leaning hole, 40-Slot, 41-Baffle, 5-Cable outlet, 6-Slit, 7-Through hole, 8-Recess, 9-Baffle plate, 90-Hook block, 91-Chamfer. Detailed Implementation
[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0026] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.
[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] See Figures 1 to 4 A tension clamp protective cover is provided. The protective cover is made of elastic material and includes an upper cover 1 for accommodating a horizontal support groove for the tension clamp and a lower cover 2 for accommodating an oblique support groove for the tension clamp. The upper cover 1 extends horizontally and the lower cover 2 extends obliquely downward. The top of the lower cover 2 is connected to the bottom of the upper cover 1. The upper cover 1 has a wire inlet 3 and a clearance hole 4 at both ends. The lower cover 2 has a wire outlet 5 at the bottom. The bottom of the upper cover 1 and the lower cover 2 have a slit 6. The slit 6 extends from the bottom of the wire inlet 3 to the wire outlet 5 and from the wire outlet 5 to the bottom of the clearance hole 4.
[0029] In use, the tension clamp protective cover is opened through the cut 6 using an installation tool with a long rod. The top of the upper cover 1 is bent and then covers the tension clamp from above, so that the upper cover 1 wraps around the horizontal support groove of the tension clamp, and the lower cover 2 wraps around the inclined support groove of the tension clamp. The tension rope passes through the clearance hole 4, the inlet wire passes through the inlet port 3, and the outlet wire passes through the outlet port 5. The installation tool is then released, and the tension clamp protective cover closes. This provides comprehensive protection for the tension clamp, the cable held by the tension clamp, and the tension rope connected to the tension clamp. Removal is also simple; it only requires opening the cut slit with the installation tool, eliminating the need for high-altitude work and direct manual disassembly. This solves the problem of traditional tension clamp protective covers requiring construction workers to use lifts or ladders to open them manually, which can easily lead to falls, electric shocks, and injuries. The installation tool with the long rod is existing technology, and its specific structure will not be described in detail in this patent. Preferably, the protective cover is made of transparent material, which makes it easy to directly observe whether there are cracks, blackening, corrosion, etc. at each exposed wiring point.
[0030] The outer walls of the upper cover 1 and the lower cover 2 are provided with through holes 7 on both sides at the joint for receiving the end of the installation tool clamp. In use, the end of the installation tool clamp is inserted into the through hole 7 to fix the installation tool and the tension clamp protective cover, which allows the installation tool to open to a smaller extent and makes opening more convenient and quick.
[0031] A recess 8 is provided at the through hole 7. The recess 8 allows the chuck end of the installation tool to be quickly positioned and aligned with the through hole 7, making it easier and faster to open.
[0032] The relief hole 4 has slots 40 extending to both sides on its top, forming baffles 41 on both sides of the relief hole 4. When the tension clamp protective cover is opened, the slots 40 can assist in opening without being restricted by the relief hole 4, and when closed, the baffles 41 can cover the tension clamp at the tensioning end, ensuring that the tensioning end of the tension clamp is protected.
[0033] It also includes baffles 9, which are made of elastic material. An opening 10 is provided at the bottom of the upper cover 1 near the cable inlet 3, and the baffles 9 are fixed on both sides of the opening 10. Since the opening range of the bottom slit 6 of the upper cover 1 is small when the tension clamp protective cover is opened, the opening 10 can provide a larger opening space. When the baffles 9 come into contact with the cable and the horizontal bracket, they can also elastically deform to make way, so that the cable and the horizontal bracket can smoothly enter the upper cover 1.
[0034] The opening 10 is provided with a locking hole 11, and the baffle 9 is provided with a locking block 90. The baffle 9 and the opening 10 are fixedly connected by the locking block 90 and the locking hole 11. The locking hole 11 and the locking block 90 are interlocked, which can provide quick disassembly and assembly of the baffle 9 and facilitate the replacement of the baffle 9.
[0035] The front end of the baffle 9 is provided with a chamfer 91 near the cut 6. The chamfer 91 further facilitates the entry of the cable.
[0036] The slit 6 of the lower cover 2 near the opening 10 gradually widens towards the opening 10. Since the slit 6 of the lower cover 2 near the opening 10 opens relatively small when the tension clamp protective cover is opened, the gradual widening of the slit 6 towards the opening 10 can provide a larger opening space, allowing the cable and horizontal bracket to smoothly enter the upper cover 1.
[0037] The slit 6 of the lower cover 2 near the clearance hole 4 gradually widens towards the clearance hole 4. Since the slit 6 of the lower cover 2 near the clearance hole 4 opens only slightly when the tension clamp protective cover is opened, the gradual widening of the slit 6 towards the opening 10 can provide a larger opening space, allowing the cable and horizontal bracket to smoothly enter the upper cover 1.
[0038] It also includes mounting holes 20 for installing temperature sensors, which are located on the side wall of the lower cover 2. This allows for temperature monitoring of the components inside the protective cover, enabling the timely detection of problems with cables and tension clamps.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A tension clamp protective cover, characterized in that: The protective cover is made of elastic material. The protective cover includes an upper cover (1) for accommodating the horizontal support groove of the tension clamp, and a lower cover (2) for accommodating the oblique support groove of the tension clamp. The upper cover (1) extends horizontally, and the lower cover (2) extends obliquely downward. The top of the lower cover (2) is connected to the bottom of the upper cover (1). The upper cover (1) is provided with a wire inlet (3) and a clearance hole (4) at both ends. The lower cover (2) is provided with a wire outlet (5) at the bottom. The upper cover (1) and the lower cover (2) are provided with a slit (6). The slit (6) extends from the bottom of the wire inlet (3) to the wire outlet (5) and from the wire outlet (5) to the bottom of the clearance hole (4).
2. The tension clamp protective cover according to claim 1, characterized in that: The upper cover (1) and the lower cover (2) are provided with through holes (7) on both sides of the joint between the outer wall of the upper cover (1) and the outer wall of the lower cover (2) for receiving the end of the installation tool clamp.
3. The tension clamp protective cover according to claim 2, characterized in that: A recess (8) is provided at the through hole (7).
4. The tension clamp protective cover according to claim 1, characterized in that: The top of the relief hole (4) has slots (40) extending to both sides, thereby forming baffles (41) on both sides of the relief hole (4).
5. The tension clamp protective cover according to claim 1, characterized in that: It also includes a baffle (9), which is made of elastic material. The bottom of the upper cover (1) is provided with an opening (10) near the inlet (3), and the baffle (9) is fixed on both sides of the opening (10).
6. The tension clamp protective cover according to claim 5, characterized in that: The opening (10) is provided with a card hole (11), and the baffle (9) is provided with a card block (90). The baffle (9) and the opening (10) are fixedly connected by the card block (90) and the card hole (11).
7. The tension clamp protective cover according to claim 5, characterized in that: The front end of the baffle (9) near the cut (6) has a chamfer (91).
8. The tension clamp protective cover according to claim 5, characterized in that: The slit (6) of the lower cover (2) near the opening (10) gradually widens toward the opening (10).
9. The tension clamp protective cover according to claim 5, characterized in that: The slit (6) of the lower cover (2) near the relief hole (4) gradually widens toward the relief hole (4).
10. The tension clamp protective cover according to any one of claims 1 to 9, characterized in that: It also includes a mounting hole (20) for mounting a temperature sensor, the mounting hole (20) being located on the side wall of the lower cover (2).
Citation Information
Patent Citations
Insulation protective cover combination of power distribution system
CN216450462U