Weak current engineering line protection device
By adjusting the position of the protective shell using a screw and slider structure, and combining it with a spring rod and bell to scare away birds, the applicability and safety issues of low-voltage line protection devices are resolved, achieving both flexible protection and safe bird-scare effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIHANG INTELLIGENT ENG CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-01
AI Technical Summary
Existing protection devices for low-voltage electrical lines cannot adapt to lines of different locations and specifications, and lack structures to deter birds, leading to increased safety hazards.
The position of the protective shell is adjusted by using an adjusting screw and slider structure, combined with a spring rod and bell structure to drive away birds, ensuring the stability and protective effect of the device.
It achieves flexible adaptability to different specifications of lines and bird deterrence, improves the ease of use and safety of the device, and reduces the risk of line damage.
Smart Images

Figure CN224191569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage engineering line protection, specifically to a low-voltage engineering line protection device. Background Technology
[0002] Compared to high-voltage electrical construction, low-voltage electrical construction is more common in our lives, especially for outdoor lines. Even though the voltage and current during low-voltage electrical construction are not as strong as those during high-voltage construction, we should still pay sufficient attention to avoid causing greater safety hazards and resulting in personal injury or property damage.
[0003] Chinese patent discloses a protection device for low-voltage engineering lines (authorization announcement number CN 221614560 U). This patented technology can solve the problems that the surface of low-voltage lines will be eroded by rainwater over time, increasing the safety hazards of low-voltage lines during use. In addition, during the wiring process, the connection of the line is prone to breakage and detachment, which reduces the service life of the low-voltage lines during use.
[0004] The protective shell in this patent cannot be adjusted according to the location of the low-voltage line, making it unsuitable for all fields and limiting its applicability. Furthermore, birds landing on the low-voltage line can easily damage its surface, and there is a lack of a structure to deter them. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a protection device for low-voltage engineering lines, including a base and a protective shell. The upper surface of the base has symmetrical through holes on the left and right sides. A C-shaped seat is installed in the through holes by sliding fit. An adjusting screw is installed at the bottom of the C-shaped seat. Multiple first sliders are installed at the bottom of the C-shaped seat by sliding fit. A protective shell is installed at the bottom of the first slider. A right slot is opened on the right end face of the C-shaped seat. A first lead screw is installed at the bottom of the right slot. A second slider is installed on the upper end face of the first lead screw. A pressure plate is installed on the left end face of the second slider.
[0006] Preferably, the left end face of the C-shaped seat is provided with a left groove, and a third slider is installed in the left groove by means of sliding fit. A pressure plate is installed on the right end face of the third slider, and T-shaped inserts are installed on the outer ends of the second slider and the third slider by means of snap-fit.
[0007] Preferably, the front and rear ends of the C-shaped base are symmetrically provided with a first square groove, a first spring rod is installed at the bottom of the first square groove, an adjusting slider is installed on the upper end face of the first spring rod, an L-shaped plate is installed on the outer end face of the adjusting slider, a lower plate is arranged below the L-shaped plate, bells are symmetrically installed on the bottom of the lower plate, a connecting seat is installed on the upper end face of the L-shaped plate, an adjusting spring is installed at the top of the connecting seat, and the other end of the adjusting spring is installed on the upper end face of the C-shaped base.
[0008] The technical effects and advantages of this utility model are as follows:
[0009] 1. This utility model adopts an adjusting screw and a first slider structure, which enables the vertical height and horizontal position of the protective shell to be adjusted, making it convenient to protect low-voltage lines of different specifications and improving the ease of use of the device.
[0010] 2. This utility model adopts a first spring rod and bell structure, which can startle birds and prevent them from damaging the weak current circuit. Attached Figure Description
[0011] Figure 1 This is a front view of the structure of a low-voltage engineering circuit protection device provided in an embodiment of this application;
[0012] Figure 2 This is a bottom view of the structure of a low-voltage engineering line protection device provided in an embodiment of this application;
[0013] Figure 3 This is a sectional front view of a low-voltage engineering circuit protection device provided in an embodiment of this application;
[0014] Figure 4 This is a left sectional view of a low-voltage electrical circuit protection device provided in an embodiment of this application;
[0015] Figure 5 This is a sectional bottom view of a low-voltage electrical engineering line protection device provided in an embodiment of this application;
[0016] In the diagram: 1. Base; 2. Protective shell; 11. C-shaped seat; 12. Adjusting screw; 13. First slider; 14. First lead screw; 15. Pressure plate; 16. Third slider; 17. First spring rod; 18. L-shaped plate; 19. Lower plate; 21. Bell; 22. Connecting seat; 23. Adjusting spring; 24. T-shaped insert. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0018] Please see Figures 1-5This embodiment provides a low-voltage electrical circuit protection device, including a base 1 and a protective shell 2. The base 1 has symmetrically arranged through holes on its upper surface. A U-shaped seat 11 is installed in each through hole via a sliding fit. An adjusting screw 12 is installed at the bottom of the U-shaped seat 11. Multiple first sliders 13 are installed at the bottom of the U-shaped seat 11 via a sliding fit. The protective shell 2 is installed at the bottom of each first slider 13. A right-position groove is formed on the right side of the U-shaped seat 11. A first lead screw 14 is installed at the bottom of the right-position groove. A second slider is installed on the upper surface of the first lead screw 14. A pressure plate 15 is installed on the left end face of the second slider. During operation, the low-voltage line passes through the corresponding protective shell 2 for protection. By rotating the adjusting screw 12, the U-shaped seat 11 is moved up and down, thereby adjusting the position of the protective shell 2 to facilitate protection of low-voltage lines at different heights. The first slider 13 structure is used to adjust the left and right position of the protective shell 2 to facilitate protection of low-voltage lines with different spacings. Rotating the first lead screw 14 moves the pressure plate 15 down, thereby fixing the bottom of the protective shell 2 and preventing the protective shell 2 from moving left and right.
[0019] The left end face of the C-shaped seat 11 is provided with a left groove. A third slider 16 is installed in the left groove by sliding fit. A pressure plate 15 is installed on the right end face of the third slider 16. T-shaped insert plates 24 are installed on the outer ends of the second slider and the third slider 16 by snap-fit. During operation, the structure of the third slider 16 is used to ensure the stability of the pressure plate 15 moving up and down. The T-shaped insert plate 24 plays a limiting role on the first lead screw 14 to prevent it from rotating relative to the lead screw, thus ensuring the overall stability of the device.
[0020] The C-shaped base 11 has a first square groove symmetrically opened at its front and rear ends. A first spring rod 17 is installed at the bottom of the first square groove. An adjusting slider is installed on the upper end face of the first spring rod 17. An L-shaped plate 18 is installed on the outer end face of the adjusting slider. A lower plate 19 is arranged below the L-shaped plate 18. Bells 21 are symmetrically installed on the bottom left and right of the lower plate 19. A connecting seat 22 is installed on the upper end face of the L-shaped plate 18. An adjusting spring 23 is installed at the top of the connecting seat 22. The other end of the adjusting spring 23 is installed on the upper end face of the C-shaped base 11. When working, when a bird lands on the L-shaped plate 18, the first spring rod 17 causes the L-shaped plate 18 to shake up and down, which can scare away the bird and prevent it from damaging the weak current line. When the L-shaped plate 18 shakes up and down, it hits the lower plate 19, causing the bells 21 to shake and make a sound, which further improves the warning effect on the bird.
[0021] In practice, the low-voltage lines are passed through the corresponding protective shell 2 for protection. By rotating the adjusting screw 12, the U-shaped base 11 is moved up and down, thereby adjusting the position of the protective shell 2 to facilitate protection of low-voltage lines at different heights. The first slider 13 is used to adjust the left and right position of the protective shell 2 to facilitate protection of low-voltage lines with different spacings. Rotating the first lead screw 14 moves the pressure plate 15 down, thereby fixing the bottom of the protective shell 2 and preventing it from moving left and right.
[0022] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A protection device for low-voltage electrical circuits, comprising a base (1) and a protective shell (2), characterized in that, The base (1) has symmetrical through holes on the upper surface. A C-shaped seat (11) is installed in the through holes by sliding fit. An adjusting screw (12) is installed at the bottom of the C-shaped seat (11). Multiple first sliders (13) are installed at the bottom of the C-shaped seat (11) by sliding fit. A protective shell (2) is installed at the bottom of the first sliders (13). A right slot is opened on the right end face of the C-shaped seat (11). A first lead screw (14) is installed at the bottom of the right slot. A second slider is installed on the upper end face of the first lead screw (14). A pressure plate (15) is installed on the left end face of the second slider.
2. The low-voltage engineering circuit protection device according to claim 1, characterized in that... The left end face of the shaped seat (11) is provided with a left groove, and a third slider (16) is installed in the left groove by means of sliding fit. A pressure plate (15) is installed on the right end face of the third slider (16).
3. The low-voltage electrical circuit protection device according to claim 1, characterized in that, The outer ends of the second and third sliders (16) are both fitted with T-shaped inserts (24) by snap-fit.
4. A protection device for low-voltage electrical circuits according to claim 1, characterized in that, The front and rear ends of the C-shaped seat (11) are symmetrically provided with a first square groove. A first spring rod (17) is installed at the bottom of the first square groove. An adjusting slider is installed on the upper end face of the first spring rod (17). An L-shaped plate (18) is installed on the outer end face of the adjusting slider.
5. A protection device for low-voltage electrical engineering lines according to claim 4, characterized in that, A lower plate (19) is arranged below the L-shaped plate (18), and bells (21) are symmetrically installed on the bottom left and right sides of the lower plate (19).
6. A protection device for low-voltage electrical engineering lines according to claim 4, characterized in that, A connecting seat (22) is installed on the upper surface of the L-shaped plate (18), and an adjusting spring (23) is installed on the top of the connecting seat (22). The other end of the adjusting spring (23) is installed on the upper surface of the U-shaped seat (11).
Citation Information
Patent Citations
Weak current engineering line protection device
CN221614560U