Anti-theft flame-retardant high-strength electric well lid

Abstract

The anti-theft flame-retardant high-strength electric power well lid comprises a base, a well lid body and an opening lock, a well lid locking mechanism is arranged at the bottom of the well lid body, the well lid locking mechanism comprises a lock rod and a lock rod pushing assembly, a base locking position is arranged on the side face of the base, and the lock rod pushing assembly pushes a lock hook at the end of the lock rod to be hooked and fixed in the base locking position; the unlocking lock comprises a rotating block pushing mechanism and a rotating block, the rotating block pushing mechanism pushes the rotating block to rotate, the rotating block pushes the lock rod pushing assembly to move backwards, the lock rod pushing assembly drives the lock rod to move to be separated from the base locking position, and unlocking is completed. The locking device is installed on the electric power well lid, so that the electric power well lid can be locked and unlocked with the base through the cooperation of the unlocking lock, the probability that the well lid is stolen is greatly reduced, and the safety of the whole equipment is improved; and meanwhile, the base is a spliced base, so that the overall ductility is improved, and well holes with different sizes can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of power manhole covers, and in particular to a theft-proof, flame-retardant, high-strength power manhole cover. Background Technology

[0002] The primary function of electrical manhole covers is to protect power cables from damage. In city streets, with frequent vehicle and pedestrian traffic, unprotected underground cables could damage them, leading to power outages or safety accidents. Therefore, the presence of electrical manhole covers effectively reduces such risks.

[0003] In the past, electrical manhole covers were also at risk of being stolen, which not only caused property damage, but also exposed the internal electrical facilities, posing a significant safety hazard.

[0004] In order to solve the problems existing in the background technology, this utility model provides a theft-proof, flame-retardant, high-strength power manhole cover. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a theft-proof, flame-retardant, high-strength power manhole cover.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A theft-proof, flame-retardant, high-strength power manhole cover includes a base, a manhole cover, and an unlocking lock. The bottom of the manhole cover is provided with a manhole cover locking mechanism, which includes a locking rod and a locking rod pushing assembly. The side of the base is provided with a base locking position. The locking rod pushing assembly pushes the locking hook at the end of the locking rod to hook into the base locking position. The unlocking lock includes a rotating block pushing mechanism and a rotating block. The rotating block pushing mechanism pushes the rotating block to rotate, and the rotating block pushes the locking rod pushing assembly to move backward. The locking rod pushing assembly drives the locking rod to move and disengage from the base locking position, thus completing the unlocking.

[0008] Furthermore, the rotating block pushing mechanism includes a lock head housing, a lock head assembly, a lock pin, a lock pin housing, and a lock pin return spring. The lock head assembly is housed inside the lock pin housing. The upper end of the lock pin is movably disposed within the lock head housing. The lock pin housing is located on the outer side of the lock pin. A notch is provided on the rear side of the bottom of the lock pin housing, and a long groove is provided on the front side of the bottom. The lock pin return spring is sleeved on the upper part of the lock pin, with one end fixed to the upper part of the lock pin and the other end abutting against the inner side of the lock pin housing. The rotating block is rotatably fixed to the long groove position at the bottom of the lock pin housing via a rotating shaft, and its upper part abuts against the lock pin. The lock head assembly drives the lock pin to move downwards, and the end of the lock pin pushes the lower part of the rotating block to flip towards the notch. Furthermore, a sliding ramp is provided on the rear side of the upper part of the rotating block, and the end face of the lock pin slides in contact with the sliding ramp of the upper part of the rotating block.

[0009] Furthermore, the lock assembly includes a lock body, a fixed post, a battery, an unlocking button, and a circuit board. The fixed post is fixed to the upper part of the inner side of the lock housing. The end of the lock post is movably mounted on the fixed post. The end of the lock body is provided with a retractable bolt. The bolt pushes the lock post downward. The circuit board is electrically connected to the battery, the unlocking lock, and the lock body.

[0010] Furthermore, a limiting block is provided above the long slot on the outer shell of the locking pin.

[0011] Furthermore, the locking rod pushing assembly includes a movable plate, a fixing nut, a base plate, an inclined block, and a locking rod return spring. The base plate is fixed below the manhole cover, and the fixing nut is fixed on the base plate. The rear part of the locking rod passes through the nut and its rear end is fixed to the inclined block. The movable plate is fixed in the middle of the locking rod. One end of the locking rod return spring is fixed to the fixing nut, and the other end is fixed to one side of the movable plate and sleeved on the outside of the locking rod. The rotating block pushes the movable plate to move the locking rod and compress the spring, and the locking rod hook at the end of the locking rod disengages from the base lock position and unlocks.

[0012] Furthermore, the base includes a base extension plate, both the base extension plate and the base are provided with connecting ears, the base extension plate and the base are connected by the connecting ears, and corner protrusions are provided at the four corners of the base.

[0013] Furthermore, the base lock position is provided with a lock slot, and the lock rod hook at the end of the lock rod is hooked to the lock buckle.

[0014] Furthermore, the corner protrusion abuts against the manhole cover.

[0015] Furthermore, one side of the manhole cover has an upper convex edge that abuts, and the other side has a lower convex edge that abuts. The upper convex edge and the lower convex edge of two adjacent manhole covers abut together.

[0016] The advantages of this utility model are as follows: by installing a locking device on the power manhole cover, it can be locked and opened with the base through the cooperation of the unlocking lock, which greatly reduces the probability of manhole cover theft and improves the overall safety of the equipment; at the same time, the base is a splicable base, which increases the overall extensibility and can be adapted to manholes of different sizes. Attached Figure Description

[0017] Figure 1 This is a front view of the anti-theft, flame-retardant, high-strength power well cover and its unlocking lock provided by this utility model.

[0018] Figure 2 This is a back view of the anti-theft, flame-retardant, high-strength power well cover and its unlocking lock provided by this utility model;

[0019] Figure 3 This is a partial enlargement of the anti-theft, flame-retardant, high-strength power well cover and its locking mechanism provided by this utility model. Figure 1 ;

[0020] Figure 4 This is a partial enlargement of the anti-theft, flame-retardant, high-strength power well cover and its locking mechanism provided by this utility model. Figure 2

[0021] Figure 5 This is a partial structural diagram of a high-strength, anti-theft, flame-retardant electric manhole cover provided by this utility model;

[0022] Figure 6 This is a partial structural diagram of a high-strength, anti-theft, flame-retardant power well cover and its locking mechanism provided by this utility model.

[0023] Figure 7 This is a structural diagram of the unlocking lock provided by this utility model;

[0024] Figure 8 This is a diagram of the internal structure of the unlocking lock provided by this utility model.

[0025] The components are as follows: 1. Base, 2. Manhole cover, 3. Unlock, 4. Base extension plate, 5. Connecting ear, 6. Base lock position, 7. Upper convex edge, 8. Lower convex edge, 9. Corner convex edge, 10. Lock head housing, 11. Unlock button, 12. Lock pin housing, 13. Notch, 14. Rotating block, 15. Long groove, 16. Rotating shaft, 17. Limiting block, 18. Lock pin, 19. Lock pin return spring, 20. Upper end slope of rotating block, 21. Lock body, 22. Lock tongue, 23. Charging port, 24. Signal light, 25. Battery, 26. Circuit board, 27. Lock rod, 28. Lock rod hook, 29. Movable plate, 30. Fixing nut, 31. Lock rod return spring, 32. Inclined block, 33. Sensing pin return spring, 34. Spring pin, 35. Fixing bracket, 36. Base plate, 37. Lock opening. Detailed Implementation

[0026] The specific solutions and embodiments of this utility model will be further described with reference to the accompanying drawings.

[0027] As shown in the figure, a theft-proof, flame-retardant, high-strength power manhole cover 2 includes a base 1, a manhole cover 2, and an unlocking lock 3. The bottom of the manhole cover 2 is provided with a manhole cover locking mechanism, which includes a locking rod 27 and a locking rod pushing assembly. The side of the base 1 is provided with a base locking position 6. The locking rod pushing assembly pushes the locking hook at the end of the locking rod 27 to hook into the base locking position 6. The unlocking lock 3 includes a rotating block pushing mechanism and a rotating block 14. The rotating block pushing mechanism pushes the rotating block 14 to rotate, and the rotating block 14 pushes the locking rod pushing assembly to move backward. The locking rod pushing assembly drives the locking rod 27 to move away from the base locking position 6, thus completing the unlocking.

[0028] The rotating block pushing mechanism includes a lock head housing 10, a lock head assembly, a lock pin 18, a lock pin 18 housing 12, and a lock pin return spring 19. The lock head assembly is located inside the lock pin 18 housing 12. The upper end of the lock pin 18 is movably located inside the lock head housing 10. The lock pin housing 12 is located outside the lock pin 18. A notch 13 is provided on the rear side of the bottom of the lock pin housing 12, and a long groove 15 is provided on the front side of the bottom. The lock pin return spring 19 is sleeved on the upper part of the lock pin 18, with one end fixed to the upper part of the lock pin 18 and the other end abutting against the inner side of the lock pin housing 12. The rotating block 14 is rotatably fixed to the position of the long groove 15 at the bottom of the lock pin housing 12 via a rotating shaft 16, and its upper part abuts against the lock pin 18. The lock head assembly drives the lock pin 18 to move downward, and the end of the lock pin 18 pushes the lower part of the rotating block 14 to flip towards the notch 13. The upper rear side of the rotating block 14 is provided with an upper sliding slope 20, and the end face of the locking pin 18 slides in contact with the upper sliding slope 20 of the rotating block.

[0029] The lock assembly includes a lock body 21, a fixing post, a battery 25, an unlocking button 11, and a circuit board 26. The fixing post is fixed to the upper part of the inner side of the lock housing 10. The end of the locking post 18 is movably mounted on the fixing post. The end of the lock body 21 is provided with a retractable bolt 22, which pushes the locking post 18 downward. The circuit board 26 is electrically connected to the battery 25, the unlocking lock 3, and the lock body 21. The lock body 21 is equipped with a commonly configured telescopic motor to drive the bolt 22 to extend and retract. The lock housing 10 is also provided with a charging port 23 and an indicator light 24.

[0030] The locking pin 18 housing 12 is provided with a limiting block 17 above the long slot 15 to prevent the unlocking lock from being inserted too far down.

[0031] The locking rod pushing assembly includes a movable plate 29, a fixing nut 30, a base plate 36, an inclined block 32, and a locking rod return spring 31. The base plate 36 is fixed below the manhole cover 2. The fixing nut 30 is fixed on the base plate 36. The rear part of the locking rod 27 passes through the nut and the rear end is fixed to the inclined block 32. The movable plate 29 is fixed in the middle of the locking rod 27. One end of the locking rod return spring 31 is fixed to the fixing nut 30, and the other end is fixed to one side of the movable plate 29 and sleeved on the outside of the locking rod 27. The rotating block 14 pushes the movable plate 29 to move the locking rod 27 and compress the spring. The locking rod hook 28 at the end of the locking rod 27 disengages from the base locking position 6 and unlocks.

[0032] The inclined block 32 abuts against the edge of the manhole cover 2 to limit its movement, giving it a certain reaction force and making it easy to reset.

[0033] The base plate 36 is equipped with a fixing frame 35, which has a circular hole. A spring post 34 is movably mounted inside the circular hole, and a responsive reset spring is fitted onto the spring post 34. One end of the spring post 34 abuts against the inclined surface of the wedge block 32. When the locking rod reset spring 31 is compressed, the locking rod 27 moves together with the wedge block 32, and the inclined surface of the wedge block 32 pushes the spring post 34 to move outward. The other end of the spring post 34 is connected to the sensing device. After the wedge block 32 is reset by the locking rod reset spring 31, the spring post 34 is reset inward by the responsive post reset spring 33.

[0034] The base locking position 6 is provided with a locking port 37, and the locking hook 28 at the end of the locking rod 27 is hooked to the locking buckle, so that the manhole cover 2 cannot be lifted off the base 1 when it is locked.

[0035] The base 1 includes a base extension plate 3. Both the base extension plate 3 and the base 1 are provided with connecting ears 5. The base extension plate 3 and the base 1 are connected by the connecting ears 5, which can expand the size of the power manhole cover 2 as needed. The base 1 has corner protrusions 9 at its four corners. The corner protrusions 9 abut against the manhole cover 2, making the manhole cover 2 more securely installed and less likely to be stolen.

[0036] One side of the manhole cover 2 is provided with an upper protruding edge 7 and the other side is provided with a lower protruding edge 8. The upper protruding edge 7 and the lower protruding edge 8 of two adjacent manhole covers 2 are connected to each other, making the connection more secure.

[0037] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A theft-proof, flame-retardant, high-strength electrical manhole cover, characterized in that, The device includes a base, a manhole cover, and an unlocking lock. The bottom of the manhole cover is equipped with a manhole cover locking mechanism, which includes a locking rod and a locking rod pushing assembly. The side of the base is equipped with a base locking position. The locking rod pushing assembly pushes the locking hook at the end of the locking rod to hook into the base locking position. The unlocking lock includes a rotating block pushing mechanism and a rotating block. The rotating block pushing mechanism pushes the rotating block to rotate, and the rotating block pushes the locking rod pushing assembly to move backward. The locking rod pushing assembly drives the locking rod to move and disengage from the base locking position, thus completing the unlocking process.

2. The anti-theft, flame-retardant, high-strength power manhole cover according to claim 1, characterized in that, The rotating block pushing mechanism includes a lock head housing, a lock head assembly, a lock pin, a lock pin housing, and a lock pin return spring. The lock head assembly is located inside the lock pin housing. The upper end of the lock pin is movably located inside the lock head housing. The lock pin housing is located on the outside of the lock pin. A notch is provided on the rear side of the bottom of the lock pin housing, and a long groove is provided on the front side of the bottom. The lock pin return spring is sleeved on the upper part of the lock pin, with one end fixed to the upper part of the lock pin and the other end abutting against the inner side of the lock pin housing. The rotating block is rotatably fixed to the long groove position at the bottom of the lock pin housing via a rotating shaft, and its upper part abuts against the lock pin. The lock head assembly drives the lock pin to move downward, and the end of the lock pin pushes the lower part of the rotating block to flip towards the notch.

3. The anti-theft, flame-retardant, high-strength power manhole cover according to claim 2, characterized in that, The upper rear side of the rotating block is provided with an upper sliding slope, and the end face of the locking pin slides in contact with the upper sliding slope of the rotating block.

4. The anti-theft, flame-retardant, high-strength power manhole cover according to claim 2, characterized in that, The lock assembly includes a lock body, a fixed post, a battery, an unlocking button, and a circuit board. The fixed post is fixed to the upper part of the inner side of the lock housing. The end of the lock post is movably mounted on the fixed post. The end of the lock body is provided with a retractable bolt. The bolt pushes the lock post downward. The circuit board is electrically connected to the battery, the unlocking lock, and the lock body.

5. A theft-proof, flame-retardant, high-strength power manhole cover according to claim 2, characterized in that, The locking pin housing is equipped with a limiting block located above the long slot.

6. The anti-theft, flame-retardant, high-strength power well cover according to claim 1, characterized in that, The locking rod pushing assembly includes a movable plate, a fixed nut, a base plate, a wedge block, and a locking rod return spring. The base plate is fixed below the manhole cover, and the fixed nut is fixed on the base plate. The rear part of the locking rod passes through the nut and is fixed to the wedge block at its rear end. The movable plate is fixed in the middle of the locking rod. One end of the locking rod return spring is fixed to the fixed nut, and the other end is fixed to one side of the movable plate and is sleeved on the outside of the locking rod. The rotating block pushes the movable plate to move the locking rod and compress the spring, and the locking rod hook at the end of the locking rod disengages from the base lock position and unlocks.

7. A theft-proof, flame-retardant, high-strength power manhole cover according to claim 1 or 6, characterized in that, The base lock position is equipped with a lock hole, and the lock rod hook at the end of the lock rod is hooked to the lock buckle.

8. The anti-theft, flame-retardant, high-strength power manhole cover according to claim 1, characterized in that, The base includes a base extension plate, and both the base extension plate and the base are provided with connecting ears. The base extension plate and the base are connected by the connecting ears.

9. A theft-proof, flame-retardant, high-strength power manhole cover according to claim 1, characterized in that, The base has corner protrusions at its four corners, which abut against the manhole cover.

10. A theft-proof, flame-retardant, high-strength power well cover according to claim 1, characterized in that, One side of the manhole cover has an upper convex edge that abuts against it, and the other side has a lower convex edge that abuts against it. The upper convex edge and the lower convex edge of two adjacent manhole covers abut against each other.

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