False touch prevention switching power supply for fire fighting

Abstract

The utility model discloses a fire-fighting anti-mistaken-touch switching power supply, which belongs to the field of switching power supplies and comprises a switching power supply body, an arranged anti-mistaken-touch mechanism is matched with the switching power supply body for use, and after equipment is completely connected with a wiring terminal on the switching power supply body through a connecting wire, the wiring terminal is connected with the anti-mistaken-touch mechanism. After the protective cover is turned forwards to cover the outside of the wiring terminal, a knob is rotated to drive a second rotating rod to realize positioning and rotating operation in a second rotating hole through an arc-shaped limiting sliding block on the outer wall, and a threaded rod pushes a movable plate when moving forwards along a threaded hole in the rotating process; when the switch power supply is turned over, a limiting rod on the front wall of the movable plate is inserted into a limiting hole formed in the first rotating rod, so that the turnover operation of the protective cover can be limited, the protective cover is fixed on the front end part of the switch power supply body, and the problem of potential safety hazards caused by the fact that the wiring terminal is touched by mistake can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of switching power supplies, in particular to a switching power supply for fire protection with an anti-mistouch function. Background Art

[0002] A firefighting switching power supply is a power supply specifically designed for firefighting systems. It converts input alternating current (AC) into a stable direct current (DC) output by controlling switching transistors using high-frequency PWM (pulse-width modulation) signals. This power supply is efficient, stable, and reliable, and is typically equipped with a variety of protections, such as overvoltage, overcurrent, overload, short-circuit, and overtemperature protection, to ensure continuous and stable power supply to firefighting equipment in emergency situations like fires. Firefighting switching power supplies are widely used in fire alarm systems, fire extinguishing systems, smoke exhaust systems, and emergency lighting, and are a crucial component of fire safety.

[0003] In the prior art, a Chinese utility model patent with publication number "CN211959736U" and titled "A Switching Power Supply with a Protective Structure" discloses a switching power supply. The patent describes technical solutions such as "by providing surrounding protective components and a top protective component, the switching power supply body can be shielded and protected to prevent external forces from directly acting on the switching power supply. The external forces can also be buffered to reduce the amplitude of the switching power supply oscillation and the probability of damage to internal components."

[0004] However, in actual use of the switching power supply, since other devices are connected to the terminal blocks on the switching power supply via connecting cables, the terminal blocks and the terminal ends of the device connecting cables are exposed to the external environment. This makes it easy for these parts of the switching power supply to be accidentally touched during use, which not only easily leads to the safety hazard of electric shock, but also affects the normal use of the switching power supply.

[0005] Therefore, in order to solve the above technical problems, the present invention proposes a fire-fighting anti-accidental-touch switch power supply. Utility Model Content

[0006] The main purpose of the utility model is to provide a fire-fighting anti-accidental-touch switch power supply, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A fire-fighting anti-accidental-touch switching power supply comprises a switching power supply body, a wiring terminal is provided at the front end of the switching power supply body, an anti-accidental-touch mechanism is provided above the wiring terminal, and the anti-accidental-touch mechanism comprises a protective cover, a fixed block, an L-shaped plate, a second rotating rod, a movable plate, a threaded rod and a limit rod, the top front end sides of the switching power supply body are respectively fixedly connected to fixed blocks, and the protective cover is movably connected to the fixed block through the first rotating rod on the outer side walls of the connecting blocks on both sides of the top surface, an L-shaped plate is fixedly installed on the rear wall of the fixed block, and the second rotating rod is movably connected to the rear wall of the L-shaped plate through the arc-shaped limiting slider on the outer wall, the movable plate is movably connected to the L-shaped plate through the sliding block on the outer side wall, and the threaded rod is fixedly connected to the rear wall of the movable plate and movably connected to the threaded hole opened at the front end of the second rotating rod, and the limit rod is fixedly connected to the front end of the movable plate.

[0009] Preferably, a group of bilaterally symmetrical fixing blocks are fixedly mounted on the front end of the top surface of the switching power supply body, and a first rotation hole is opened on the side wall of the fixing block.

[0010] Preferably, a group of left-right symmetrical connecting blocks are fixedly installed on the top surface of the protective cover, and a first rotating rod is fixedly installed on the outer wall of the connecting block. The first rotating rod is movably installed in the first rotating hole, and a limiting hole is provided on the outer wall of the first rotating rod. A lead-in port is also provided on the front wall of the protective cover.

[0011] Preferably, the L-shaped plate is fixedly mounted on the rear wall of the fixed block, and a sliding opening is provided on the side wall of the L-shaped plate, a second rotating hole is provided on the rear wall of the L-shaped plate, and a limiting ring groove is provided on the inner wall of the second rotating hole.

[0012] Preferably, the second rotating rod is movably installed in the second rotating hole, and a group of symmetrical arc-shaped limit sliders are fixedly installed on the outer wall of the second rotating rod and movably installed in the limit ring groove, a threaded hole is provided on the front end wall of the second rotating rod, and a knob is fixedly installed on the rear end wall of the second rotating rod, and a through hole is provided on the front end wall of the knob.

[0013] Preferably, a sliding block is fixedly mounted on the outer side wall of the movable plate, and the sliding block is movably mounted in the sliding opening, a threaded rod is fixedly mounted on the rear wall of the movable plate, and the threaded rod is threadedly connected to the threaded hole and passes through the through hole, and a limiting rod is also fixedly mounted on the front side wall of the movable plate and inserted into the limiting hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The second locking mechanism is used to lock the locking cam of the second locking cam, so that the locking cam can be locked in the locking cam of the second locking cam, and the locking cam can be locked in the locking cam of the second locking cam, so that the locking cam can be locked in the locking cam of the second locking cam. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model before use;

[0017] Figure 2 This is a schematic diagram of the anti-accidental touch mechanism of the present invention when in use;

[0018] Figure 3 This is a schematic diagram of the overall structure of the protective cover of the present utility model;

[0019] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged split structure at point A.

[0020] In the figure: 1. Switching power supply body; 2. Terminal block; 3. Anti-accidental touch mechanism; 4. Protective cover; 5. Connecting block; 6. First rotating rod; 7. Limiting hole; 8. Lead-in opening; 9. Fixed block; 10. First rotating hole; 11. L-shaped plate; 12. Sliding opening; 13. Second rotating hole; 14. Limiting ring groove; 15. Second rotating rod; 16. Arc-shaped limiting slider; 17. Threaded hole; 18. Knob; 19. Through hole; 20. Movable plate; 21. Sliding block; 22. Threaded rod; 23. Limiting rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1 - Figure 4As shown, a fire-fighting anti-accidental-touch switching power supply comprises a switching power supply body 1, a wiring terminal 2 is provided at the front end of the switching power supply body 1, and is characterized in that: an anti-accidental-touch mechanism 3 is provided above the wiring terminal 2, and the anti-accidental-touch mechanism 3 comprises a protective cover 4, a fixed block 9, an L-shaped plate 11, a second rotating rod 15, a movable plate 20, a threaded rod 22 and a limit rod 23, the top front end of the switching power supply body 1 is fixedly connected to the fixed blocks 9 on both sides, and the protective cover 4 is movably connected to the fixed block 9 through the first rotating rod 6 on the outer wall of the connecting block 5 on both sides of the top surface, an L-shaped plate 11 is fixedly installed on the rear wall of the fixed block 9, and the second rotating rod 15 is movably connected to the rear wall of the L-shaped plate 11 through the arc-shaped limiting slider 16 on the outer wall, the movable plate 20 is movably connected to the L-shaped plate 11 through the sliding block 21 on the outer wall, and the threaded rod 22 is fixedly connected to the rear wall of the movable plate 20 and is movably connected to the threaded hole 17 opened at the front end of the second rotating rod 15, and the limit rod 23 is fixedly connected to the front end of the movable plate 20.

[0023] like Figure 4 As shown, a set of bilaterally symmetrical fixing blocks 9 are fixedly mounted on the top front end of the switching power supply body 1, and a first rotation hole 10 is opened on the side wall of the fixing block 9. The first rotation hole 10 opened on the fixing block 9 is used to cooperate with the first rotation rod 6 to realize the rotation operation;

[0024] like Figure 2 and Figure 3 As shown, a group of bilaterally symmetrical connecting blocks 5 are fixedly mounted on the top surface of the protective cover 4, and a first rotating rod 6 is fixedly mounted on the outer side wall of the connecting block 5. The first rotating rod 6 is movably mounted in the first rotating hole 10, and a limiting hole 7 is provided on the outer wall of the first rotating rod 6. A lead-in opening 8 is also provided on the front wall of the protective cover 4. When the device connecting wire connector completes the connection with the terminal 2 on the switching power supply body 1, the protective cover 4 can be flipped forward, and the first rotating rod 6 on the outer side wall of the connecting block 5 on the top surface of the protective cover 4 will rotate in the first rotating hole 10, so that the protective cover 4 can be flipped over to cover the terminal 2. The lead-in opening 8 provided on the protective cover 4 can allow the connecting wire to be led out of the protective cover 4, and the limiting hole 7 provided is used to cooperate with the limiting rod 23 to play a limiting role.

[0025] like Figure 4 As shown, the L-shaped plate 11 is fixedly mounted on the rear wall of the fixed block 9, and a sliding opening 12 is provided on the side wall of the L-shaped plate 11, a second rotation hole 13 is provided on the rear wall of the L-shaped plate 11, and a limiting annular groove 14 is provided on the inner wall of the second rotation hole 13. The sliding opening 12 provided on the L-shaped plate 11 is used to cooperate with the sliding block 21 to achieve a sliding operation, and the second rotation hole 13 provided is used to cooperate with the second rotation rod 15 to achieve a rotation operation, and the annular sliding operation is achieved by cooperating with the arc-shaped limiting slider 16 provided;

[0026] like Figure 4 As shown, the second rotating rod 15 is movably installed in the second rotating hole 13, and a group of symmetrical arc-shaped limiting sliders 16 are fixedly installed on the outer wall of the second rotating rod 15 and movably installed in the limiting ring groove 14. A threaded hole 17 is opened on the front end wall of the second rotating rod 15, and a knob 18 is fixedly installed on the rear end wall of the second rotating rod 15. A through hole 19 is opened on the front end wall of the knob 18. After the protective cover 4 is flipped and covered, the knob 18 is rotated to drive the second rotating rod 15 to rotate in the second rotating hole 13. The arc-shaped limiting slider 16 on the outer wall of the second rotating rod 15 will realize an annular sliding operation in the limiting ring groove 14 and limit the second rotating rod 15 to rotate in the second rotating hole 13, and the through hole 19 opened at the front end of the knob 18 is used to cooperate with the movement of the threaded rod 22.

[0027] like Figure 4 As shown, a sliding block 21 is fixedly mounted on the outer wall of the movable plate 20, and the sliding block 21 is movably mounted in the sliding opening 12, a threaded rod 22 is fixedly mounted on the rear wall of the movable plate 20, and the threaded rod 22 is threadedly connected to the threaded hole 17 and passes through the through hole 19, and a limiting rod 23 inserted into the limiting hole 7 is also fixedly mounted on the front wall of the movable plate 20. Under the rotation action of the second rotating rod 15, the threaded rod 22 will push the movable plate 20 forward along the threaded hole 17, and the sliding block 21 will slide in the sliding opening 12 until the limiting rod 23 is inserted into the limiting hole 7, thereby limiting the flipping of the protective cover 4 and fixing the protective cover 4 to the front end of the switching power supply body 1 to cover and protect the terminal 2, which can not only prevent the protective cover 4 from being opened by mistake, but also prevent the safety hazard of electric shock caused by accidental touching of this part.

[0028] It should be noted that the present invention is a fire-fighting anti-accidental-touch switching power supply. When the equipment is fully connected to the terminal 2 on the switching power supply body 1 through the terminal head on the connecting line, the protective cover 4 located at the front end of the top of the switching power supply body 1 is flipped over, and the first rotating rod 6 on the outer wall of the connecting block 5 installed on the left and right sides of the top surface of the protective cover 4 will rotate in the first rotating hole 10 opened on the side wall of the left and right symmetrical fixed block 9 installed at the front end of the top of the switching power supply body 1 until the protective cover 4 completely covers the connection part of the terminal 2 at the front end of the switching power supply body 1. Then, the knob 18 on the rear wall of the L-shaped plate 11 installed on the rear wall of the fixed block 9 is rotated. The knob 18 will drive the second rotating rod 15 to rotate in the second rotating hole 13 opened on the rear wall of the L-shaped plate 11, and when rotating, the arc-shaped limiting slider 16 installed on the outer wall of the second rotating rod 15 will slide in a circular trajectory in the limiting ring groove 14 opened on the inner wall of the second rotating hole 13, thereby limiting the second rotating rod 15 from rotating in the second rotating hole 13. When the second rotating rod 15 is rotated, the arc-shaped limiting slider 16 installed on the outer wall of the second rotating rod 15 will slide in a circular trajectory in the limiting ring groove 14 opened on the inner wall of the second rotating hole 13, thereby limiting the second rotating rod 15 from rotating in the second rotating hole 13. During the rotation of the movable rod 15, the threaded rod 22 connected to the threaded hole 17 at the front end will push the movable plate 20 forward along the threaded hole 17 and the through hole 19 on the front end wall of the knob 18, and the sliding block 21 installed on the outer wall of the movable plate 20 will slide in the sliding opening 12 on the outer wall of the L-shaped plate 11 until the limiting rod 23 installed on the front wall of the movable plate 20 is inserted into the limiting hole 7 on the outer wall of the first rotating rod 6. In this way, the protective cover 4 can be restricted from turning and fixed to the outside of the front terminal 2 of the switching power supply body 1 to prevent the terminal 2 from being accidentally opened when the switching power supply body 1 is in use. The protective cover 4 shields the terminal 2 and the connector of the device connecting wire connected to the terminal 2, which can effectively prevent the safety hazard caused by accidental touch of this part, so that the switching power supply body 1 has the function of preventing accidental touch when in use, thereby not only improving the safety of the switching power supply body 1 but also ensuring the normal use of the switching power supply body 1.

[0029] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced with equivalents, or some of its technical features may be replaced with equivalents without departing from the scope of the present invention. Anything within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fire-fighting anti-accidental-touch switching power supply, comprising a switching power supply body (1), wherein a connection terminal (2) is provided at the front end of the switching power supply body (1), and characterized in that: An anti-accidental touch mechanism (3) is provided above the wiring terminal (2), and the anti-accidental touch mechanism (3) comprises a protective cover (4), a fixed block (9), an L-shaped plate (11), a second rotating rod (15), a movable plate (20), a threaded rod (22) and a limit rod (23). The front end of the top of the switching power supply body (1) is fixedly connected to the fixed blocks (9) on both sides, and the protective cover (4) is movably connected to the fixed blocks (9) through the first rotating rods (6) on the outer side walls of the connecting blocks (5) on both sides of the top surface. The fixed blocks (9) An L-shaped plate (11) is fixedly mounted on the rear wall of the movable plate (20), and the second rotating rod (15) is movably connected to the rear wall of the L-shaped plate (11) through an arc-shaped limiting slider (16) on the outer wall. The movable plate (20) is movably connected to the L-shaped plate (11) through a sliding block (21) on the outer wall. The threaded rod (22) is fixedly connected to the rear wall of the movable plate (20) and movably connected to the threaded hole (17) opened at the front end of the second rotating rod (15). The limiting rod (23) is fixedly connected to the front end of the movable plate (20).

2. The fire-fighting anti-accidental-touch switching power supply according to claim 1, characterized in that: A group of bilaterally symmetrical fixing blocks (9) are fixedly mounted on the front end of the top face of the switching power supply body (1), and a first rotation hole (10) is provided on the side wall of the fixing block (9).

3. The fire-fighting anti-accidental-touch switch power supply according to claim 2, characterized in that: A group of bilaterally symmetrical connecting blocks (5) are fixedly mounted on the top surface of the protective cover (4), and a first rotating rod (6) is fixedly mounted on the outer side wall of the connecting block (5). The first rotating rod (6) is movably mounted in the first rotating hole (10), and a limiting hole (7) is provided on the outer wall of the first rotating rod (6). A lead-in port (8) is also provided on the front wall of the protective cover (4).

4. The fire-fighting anti-accidental-touch switching power supply according to claim 3, characterized in that: The L-shaped plate (11) is fixedly mounted on the rear wall of the fixed block (9), and a sliding opening (12) is provided on the side wall of the L-shaped plate (11). A second rotating hole (13) is provided on the rear wall of the L-shaped plate (11), and a limiting ring groove (14) is provided on the inner wall of the second rotating hole (13).

5. The fire-fighting anti-accidental-touch switch power supply according to claim 4, characterized in that: The second rotating rod (15) is movably mounted in the second rotating hole (13), and a group of symmetrical arc-shaped limiting sliders (16) are fixedly mounted on the outer wall of the second rotating rod (15) and movably mounted in the limiting ring groove (14). A threaded hole (17) is provided on the front end wall of the second rotating rod (15), and a knob (18) is fixedly mounted on the rear end wall of the second rotating rod (15), and a through hole (19) is provided on the front end wall of the knob (18).

6. The fire-fighting anti-accidental-touch switch power supply according to claim 5, characterized in that: A sliding block (21) is fixedly mounted on the outer wall of the movable plate (20), and the sliding block (21) is movably mounted in the sliding opening (12). A threaded rod (22) is fixedly mounted on the rear wall of the movable plate (20), and the threaded rod (22) is threadedly connected to the threaded hole (17) and passes through the through hole (19). A limiting rod (23) is also fixedly mounted on the front wall of the movable plate (20) and inserted into the limiting hole (7).

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