Clutch well lid with lock

Abstract

The clutch well lid with the lock comprises a well lid body, a box body fixedly connected to the well lid body, a driving mechanism, a locking mechanism and a clutch mechanism, the clutch mechanism comprises a sleeve, a first gear, a rotating seat and a fixed seat, the first gear, the rotating seat and the fixed seat are all connected to the sleeve in a sleeved mode, and the rotating seat is installed between the fixed seat and the first gear. The fixing base is fixedly connected to the box body, the driving mechanism is matched with the first gear to control the locking mechanism to conduct unlocking or locking, the sleeve and the rotating base are in anti-rotation fit so that the sleeve can drive the rotating base to rotate, and the faces, opposite to the first gear, of the rotating base are provided with lifting faces matched with each other. The lifting face is provided with limiting faces which abut against each other when rotating in the circumferential direction. Manual locking and electric locking can be switched through control of the clutch mechanism, and the situation that the well lid cannot be opened after the electric locking mechanism loses efficacy is effectively prevented.

Description

Technical Field

[0001] The utility model relates to a clutch manhole cover with a lock. Background Art

[0002] With the update of technology, manual locking mechanisms are constantly being replaced by electric locking mechanisms. Electric locking mechanisms achieve locking and unlocking through electronic signals or remote control. Users do not need to manually operate the lock, which improves the convenience of use. However, there are still some issues that cannot be ignored in terms of power supply, environment, and maintenance. When one of these factors causes the electric locking mechanism to fail, it is easy to increase the cost of use, and violent breaking methods are required to unlock it. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a clutch manhole cover with a lock, which can switch between electric locking and manual locking to prevent the electric locking mechanism from failing and becoming unable to unlock.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clutch manhole cover with a lock, comprising a manhole cover, a box body fixedly connected to the manhole cover, a driving mechanism, a locking mechanism, and a clutch mechanism, the clutch mechanism comprising a sleeve, a first gear, a rotating seat, and a fixed seat, the rotating seat being installed between the fixed seat and the first gear, and the fixed seat being fixedly connected to the box body, the driving mechanism controls the locking mechanism to unlock or lock by cooperating with the first gear, the sleeve and the rotating seat are anti-rotationally matched, so that the sleeve can drive the rotating seat to rotate, the surfaces of the rotating seat opposite to the first gear are provided with mutually cooperating lifting surfaces, and the lifting surfaces are provided with limiting surfaces that abut against each other during circumferential rotation, and the first gear is disengaged from the cooperation with the driving mechanism by abutting the lifting surfaces to increase the height.

[0005] As a further improvement of the present invention, grooves that are interconnected are respectively provided on the surfaces where the sleeve and the fixed seat are socketed, a magnet is provided in the groove, and the magnet can move along the axial direction of the groove, and a first magnetic component or elastic component that pops the magnet toward the sleeve is provided in the groove of the fixed seat. After being popped out, the magnet is located at the socket of the sleeve and the fixed seat, so that the sleeve and the fixed seat cannot rotate relative to each other.

[0006] As a further improvement of the present invention, a spring is provided between the first gear and the top of the box body, an annular groove is provided on the first gear for facilitating the positioning of the spring, and the first gear is kept in cooperation with the lifting surface through the spring.

[0007] As a further improvement of the present invention, the locking mechanism includes a second gear meshing with the first gear, a rotating rod cooperated with the second gear for anti-rotation, and a rotating plate fixedly connected to the rotating rod, and a latch assembly is eccentrically connected to the rotating plate, and the latch assembly is rotated by the rotating plate to achieve unlocking or locking.

[0008] As a further improvement of the present invention, the latch assembly includes a guide seat, an insertion rod, and a connecting plate fixedly connected to the manhole cover. The guide seat is provided with a through hole for inserting the insertion rod. The insertion rod is installed in the through hole. One end of the connecting plate is rotatably connected to the insertion rod, and the other end is rotatably connected to the rotating plate. The insertion rod performs linear motion on the guide seat through the rotation of the rotating plate to achieve unlocking or locking.

[0009] As a further improvement of the present invention, a raised limiting column is provided at the bottom of the second gear, and a raised edge for limiting the rotation angle of the limiting column is provided at the bottom of the box body.

[0010] As a further improvement of the present invention, the driving mechanism includes a motor installed in the box body, a worm installed at the transmission end of the motor, and a gear set installed in the box body and meshing with each other. The input end of the gear set is transmitted by cooperating with the worm, and its output end is meshed with the first gear.

[0011] As a further improvement of the present invention, the first gear is disengaged from the gear set after being raised by the lifting surface, and the first gear remains engaged with the second gear, and the first gear is unlocked or locked by manually driving the sleeve.

[0012] The beneficial effects of the utility model are as follows: manual locking and electric locking can be switched through the control of the clutch mechanism, which can effectively prevent the manhole cover from being unable to be opened due to failure of the electric locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0014] Figure 2 The schematic diagram is hidden for the embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the box body according to an embodiment of the utility model;

[0016] Figure 4 This is a schematic cross-sectional view of the clutch mechanism according to an embodiment of the present invention.

[0017] : 1, well lid; 2, drive mechanism; 21, motor; 22, worm; 23, gear set; 3, locking mechanism; 31, second gear; 32, rotating rod; 33, rotating plate; 34, bolt assembly; 341, guide seat; 342, insertion rod; 343, connecting plate; 35, limiting column; 36, convex edge; 4, clutch mechanism; 41, sleeve; 42, first gear; 421, spring; 422, annular groove; 43, rotating seat; 44, fixed seat; 45, lifting surface; 46, limiting surface; 47, groove; 48, magnetic steel; 49, first magnetic component; 5, box body; DETAILED DESCRIPTION

[0018] The utility model will be made further detailed description in combination with the embodiment shown in the drawings.

[0019] Referring to Figures 1-4 A locking clutch well lid, including well lid 1, box body 5 that is fixedly connected on well lid 1, drive mechanism 2, locking mechanism 3, clutch mechanism 4, drive mechanism 2 is cooperated with clutch mechanism 4 through electric control, clutch mechanism 4 is used for transmitting the power of drive mechanism 2, and the mode of manual locking and electric locking can be switched, the clutch mechanism 4 includes sleeve 41, first gear 42, rotating seat 43, fixed seat 44 that are all sleeved on sleeve 41, the sleeve 41 rotationally connected on box body 5 and the height of sleeve 41 extends to well lid 1, well lid 1 is equipped with the opening that is communicated with sleeve 41 at the position corresponding sleeve 41, through the opening, sleeve 41 can be rotated with the tool, the rotating seat 43 is installed between fixed seat 44 and first gear 42, and fixed seat 44 is fixedly connected on box body 5, drive mechanism 2 is cooperated with first gear 42 to control locking mechanism 3 to be unlocked or locked, the sleeve 41 and rotating seat 43 are anti-rotation cooperation, so that sleeve 41 can drive rotating seat 43 to rotate, the opposite face of rotating seat 43 and first gear 42 is equipped with the lifting surface 45 that is mutually matched, the lifting surface 45 is equipped with the limiting surface 46 that is mutually abutted when circumferential rotation, first gear 42 is lifted by the abutment of lifting surface 45 to separate the cooperation with drive mechanism 2 and switch the unlocking mode, when drive mechanism 2 is invalid, rotating sleeve 41 to drive rotating seat 43 to rotate, first gear 42 is lifted by lifting surface 45 to separate the cooperation with drive mechanism 2, and then be unlocked or locked manually.

[0020] The sleeve 41 and the fixing seat 44 are respectively provided with mutually connected grooves 47 on the surfaces thereof, and a magnet 48 is provided in the groove 47, and the magnet 48 can move along the axial direction of the groove 47, and the two ends of the magnet 48 have a south pole and a north pole. A first magnetic component 49 or an elastic component is provided in the groove 47 of the fixing seat 44 to eject the magnet 48 toward the sleeve 41. After ejection, the magnet 48 is located at the sleeve joint of the sleeve 41 and the fixing seat 44. The first magnetic component 49 ejects the magnet 48 by the principle of repulsion of like-charged magnets, thereby causing the sleeve 41 and the fixing seat 44 to be engaged. 4 cannot rotate relative to each other. When the sleeve 41 needs to rotate, a second magnetic component that repels the magnet 48 is inserted into the sleeve 41. Since the repulsive force between the second magnetic component and the magnet 48 is greater than the repulsive force of the first magnetic component 49, the magnet 48 completely falls into the groove 47 located in the fixing seat 44, so that the sleeve 41 can rotate and the lock of the sleeve 41 is released. A spring 421 is provided between the first gear 42 and the top of the box body 5. The first gear 42 is provided with an annular groove 422 for facilitating the positioning of the spring 421. The first gear is kept in cooperation with the lifting surface through the spring.

[0021] The locking mechanism 3 includes a second gear 31 meshing with the first gear 42, a rotating rod 32 anti-rotationally matched with the second gear 31, and a rotating plate 33 fixedly connected to the rotating rod 32. The rotating plate 33 can rotate with the cooperation between the second gear 31 and the rotating rod 32. A latch assembly 34 is eccentrically connected to the rotating plate 33. The latch assembly 34 is unlocked or locked by rotating the rotating plate 33. The latch assembly 34 includes a guide seat 341 fixedly connected to the manhole cover 1, an insertion rod 342, and a connecting plate 343. The guide seat 341 is used to control the movable direction of the insertion rod 342. The guide seat 341 is provided with a through hole for inserting the insertion rod 342, and the insertion rod 342 is installed in the through hole. One end of the connecting plate 343 is rotatably connected to the insertion rod 342, and the other end is rotatably connected to the rotating plate. The insertion rod 342 is unlocked or locked by rotating the rotating plate 33, and a raised limiting column 35 is provided at the bottom of the second gear 31, and a convex edge is provided at the bottom of the box body 5 to limit the rotation angle of the limiting column 35. The limiting column 35 and the convex edge are provided to prevent the rotation angle of the rotating plate 33 from being too large, causing the insertion rod 342 to fall out of the guide seat 341.

[0022] The driving mechanism 2 includes a motor 21 installed in the box body 5, a worm 22 installed at the transmission end of the motor 21, and a gear set 23 installed in the box body 5 and meshing with each other. The input end of the gear set 23 is transmitted by cooperating with the worm 22, and its output end is meshed with the first gear 42. In this solution, the first gear 42 can be disengaged from the gear set 23 after being raised to a higher height by the lifting surface 45, and the first gear 42 remains meshed with the second gear 31. In this solution, even if the gear set 23 is damaged and cannot rotate, the lock of the sleeve 41 on the rotation of the magnet 48 is released by inserting a second magnetic component into the sleeve 41, so that the sleeve 41 is rotated to manually unlock or lock it, which can effectively avoid the removal of the manhole cover 1 by forced demolition and reduce maintenance costs.

[0023] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A clutch manhole cover with a lock, comprising a manhole cover and a box body fixedly connected to the manhole cover, characterized in that: The cam is secured to the first gear and is secured to the second gear by means of a lever, which is secured to the first gear when the cam is in engagement with the first gear.

2. A clutch manhole cover with lock according to claim 1, characterized in that: The sleeve and the fixed seat are respectively provided with mutually connected grooves on the surfaces where they are socketed. A magnet is provided in the groove, and the magnet can move along the axial direction of the groove. A first magnetic component or elastic component is provided in the groove of the fixed seat to eject the magnet toward the sleeve. After being ejected, the magnet is located at the socket of the sleeve and the fixed seat, so that the sleeve and the fixed seat cannot rotate relative to each other.

3. The clutch manhole cover with lock according to claim 1, characterized in that: A spring is provided between the first gear and the top of the box body. An annular groove is provided on the first gear for facilitating the positioning of the spring. The first gear is kept in cooperation with the lifting surface through the spring.

4. The clutch manhole cover with lock according to claim 1, characterized in that: The locking mechanism includes a second gear meshing with the first gear, a rotating rod anti-rotationally matched with the second gear, and a rotating plate fixedly connected to the rotating rod. A latch assembly is eccentrically connected to the rotating plate, and the latch assembly is rotated by the rotating plate to achieve unlocking or locking.

5. The clutch manhole cover with lock according to claim 4, characterized in that: The latch assembly includes a guide seat fixedly connected to the manhole cover, an insertion rod, and a connecting plate. The guide seat is provided with a through hole for inserting the insertion rod. The insertion rod is installed in the through hole. One end of the connecting plate is rotatably connected to the insertion rod, and the other end is rotatably connected to the rotating plate. The insertion rod performs linear motion on the guide seat through the rotation of the rotating plate to achieve unlocking or locking.

6. The clutch manhole cover with lock according to claim 4, characterized in that: A raised limiting column is provided at the bottom of the second gear, and a raised edge for limiting the rotation angle of the limiting column is provided at the bottom of the box body.

7. The clutch manhole cover with lock according to claim 2, characterized in that: The driving mechanism includes a motor installed in the box body, a worm installed at the transmission end of the motor, and a gear set installed in the box body and meshing with each other. The input end of the gear set is transmitted by cooperating with the worm, and its output end is meshed with the first gear.

8. The clutch manhole cover with lock according to claim 7, characterized in that: The first gear is disengaged from the gear set after being raised by the lifting surface, and the first gear remains engaged with the second gear. The first gear is unlocked or locked by manually driving the sleeve.

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