Well lid locking device of inspection well

Abstract

The utility model relates to the field of locking devices, in particular to an inspection well lid locking device. The utility model provides a manhole cover locking device of an inspection well, which can lock a manhole cover on the inspection well and prevent pedestrians from falling into the well due to looseness or movement of the manhole cover. A manhole cover locking device comprises a bottom cover, a bottom cover, a connecting ring, a main clamping plate, an auxiliary clamping plate, a lead screw and the like, the upper side of the bottom cover is connected with the bottom cover, the upper side of the bottom cover is connected with the connecting ring, the upper side of the connecting ring is connected with the main clamping plate, the middle of the connecting ring is rotatably connected with the lead screw, and the lead screw is in threaded connection with the auxiliary clamping plate. The sliding rods slide to be away from each other, the clamping plate is pushed to slide and open on the bottom cover, the spring is extruded and contracted, the clamping plate makes contact with the well wall of the inspection well, and the effects that the well lid can be locked on the inspection well, the well lid is prevented from loosening or moving, and pedestrians are prevented from falling into the well are achieved.

Description

Technical Field

[0001] The utility model relates to the field of locking devices, in particular to a locking device for a manhole cover of an inspection well. Background Art

[0002] Inspection wells are set up for the maintenance of power supply, water supply, gas pipes, street light lines and other underground infrastructure in cities. They are easy to install. They are usually set up at the intersection of pipelines and turns to facilitate regular inspection of auxiliary structures. In order to prevent pedestrians from falling into the inspection well, it is necessary to use a manhole cover to seal it.

[0003] The manhole covers of existing inspection wells are usually fixed on the inspection wells with bolts to seal the inspection wells. However, since the bolts need to be removed during regular inspections of the inspection wells, the manhole covers are prone to loosening or moving when inspectors are inspecting in the wells, causing pedestrians to fall into the inspection wells, which is quite dangerous.

[0004] Therefore, a manhole cover locking device has been developed that can lock the manhole cover on the manhole to prevent the manhole cover from loosening or moving, causing pedestrians to fall into the manhole. Utility Model Content

[0005] In order to overcome the disadvantage that the manhole cover of the existing inspection well is easy to loosen or move when the inspectors are inspecting in the well, causing pedestrians to fall into the inspection well, which is quite dangerous, the utility model provides a manhole cover locking device that can lock the manhole cover on the inspection well to prevent the manhole cover from loosening or moving, causing pedestrians to fall into the well.

[0006] The technical solution is as follows: A manhole cover locking device for an inspection well, comprising a bottom cover, a bottom cover, a connecting ring, a main splint, an auxiliary splint, a screw rod, a main shaft, a first handle and a locking mechanism, the bottom cover is connected to the upper side of the bottom cover, the connecting ring is connected to the upper side of the bottom cover, the main splint is connected to the upper side of the connecting ring, the middle part of the connecting ring is rotatably connected to the screw rod, the auxiliary splint is threadedly connected to the screw rod, the middle part of the bottom cover is connected to the main shaft, the main shaft passes through the screw rod, the upper part of the screw rod is connected to the first handle, and the bottom cover is provided with a locking mechanism that can lock the manhole cover.

[0007] Furthermore, the positioning mechanism includes a turntable, a sliding rod, a card plate and a spring. The turntable is rotatably connected to the lower side of the connecting ring, the turntable is connected to the screw rod, a plurality of sliding rods are slidably connected to the turntable, a plurality of card plates are slidably connected to the bottom cover, the sliding rods are connected to adjacent card plates, and a spring is connected between the card plates and the bottom cover. When the screw rod rotates, it drives the turntable to rotate on the connecting ring, so that the sliding rods slide away from each other, pushing the card plates to slide and open on the bottom cover, and the springs are squeezed and contracted, so that the card plates contact the wall of the inspection well, thereby fixing the bottom cover on the inspection well.

[0008] Furthermore, it also includes a limiting mechanism, which includes a support plate, a rotating rod, a limit plate and a second handle. The upper side of the auxiliary splint is connected to the support plate, the upper part of the support plate is rotatably connected to the rotating rod, the lower side of the rotating rod is connected to the limit plate, the limit plate is clamped with the first handle, and the upper side of the rotating rod is connected to the second handle. By grasping the second handle and rotating the rotating rod on the support plate, the limit plate is rotated to be clamped and matched with the first handle.

[0009] Furthermore, a soft cushion is provided on the first handle.

[0010] Furthermore, the card plates are all provided with limit blocks.

[0011] Furthermore, the pallets are all U-shaped structures.

[0012] The beneficial effects are as follows: 1. The utility model pushes the card plate to slide and open on the bottom cover by sliding the sliding rods away from each other. The spring is squeezed and contracted, so that the card plate contacts the wall of the inspection well, thereby achieving the effect of being able to lock the manhole cover on the inspection well, preventing the manhole cover from loosening or moving and causing pedestrians to fall into the well.

[0013] 2. The utility model grasps the second handle to rotate the rotating rod on the support plate, so that the limit plate rotates to engage with the first handle, thereby limiting the first handle and preventing the auxiliary splint from moving due to the rotation of the first handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the utility model.

[0016] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the locking mechanism of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the limiting mechanism of the utility model.

[0019] In the accompanying drawings: 0_manhole cover, 1_bottom cover, 2_bottom cover, 3_connecting ring, 4_main splint, 5_auxiliary splint, 6_screw, 7_main shaft, 8_first handle, 9_locking mechanism, 91_turntable, 92_slide rod, 93_locking plate, 94_spring, 10_limiting mechanism, 101_support plate, 102_turn rod, 103_limiting plate, 104_second handle. DETAILED DESCRIPTION

[0020] The preferred technical solution of the present utility model is described in detail below with reference to the accompanying drawings.

[0021] A manhole cover locking device, such as Figure 1-Figure 3 As shown, it includes a bottom cover 1, a bottom cover 2, a connecting ring 3, a main splint 4, an auxiliary splint 5, a screw rod 6, a main shaft 7, a first handle 8 and a locking mechanism 9. The bottom cover 1 is connected to the bottom cover 2 on the upper side, the bottom cover 2 is connected to the connecting ring 3 on the upper side, the main splint 4 is connected to the upper side of the connecting ring 3, the connecting ring 3 is rotatably connected to the middle of the connecting ring 3, the auxiliary splint 5 is threadedly connected to the screw rod 6, the middle of the bottom cover 1 is connected to the main shaft 7, the main shaft 7 passes through the screw rod 6, the upper part of the screw rod 6 is connected to the first handle 8, the first handle 8 is provided with a cushion for easy gripping, and the bottom cover 1 is provided with a locking mechanism 9.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, the locking mechanism 9 includes a turntable 91, a slide bar 92, a clamping plate 93 and a spring 94. The turntable 91 is rotatably connected to the lower side of the connecting ring 3. The turntable 91 is connected to the screw rod 6. Six slide bars 92 are slidably connected to the turntable 91. Six clamping plates 93 are slidably connected to the bottom cover 1. The slide bars 92 are connected to adjacent clamping plates 93. Limiting blocks are provided on the clamping plates 93 for easy positioning. The clamping plates 93 are all U-shaped structures for easy fitting with the well wall. Springs 94 are connected between the clamping plates 93 and the bottom cover 1.

[0023] When using the utility model, first, the manhole cover 0 is clamped on the manhole mouth of the inspection well, and then the first handle 8 is rotated to drive the screw rod 6 to rotate on the main shaft 7, so that the auxiliary clamping plate 5 moves downward and contacts the upper side of the manhole cover 0, so that the manhole cover 0 is clamped between the main clamping plate 4 and the auxiliary clamping plate 5, and the connecting ring 3 supports the main clamping plate 4, and the bottom cover 2 supports the connecting ring 3. While the screw rod 6 rotates, it drives the turntable 91 to rotate on the connecting ring 3, so that the sliding rod 92 slides away from each other, pushing the clamping plate 93 to slide and open on the bottom cover 1, and the spring 94 is squeezed and contracted, so that the clamping plate 93 contacts the wall of the inspection well, and fixes the bottom cover 1 on the inspection well, thereby locking the manhole cover 0 on the inspection well to prevent the manhole cover 0 from loosening or moving, causing pedestrians to fall into the well.

[0024] like Figure 1 , Figure 2 and Figure 5 As shown, it also includes a limiting mechanism 10, which includes a support plate 101, a rotating rod 102, a limit plate 103 and a second handle 104. The upper side of the auxiliary splint 5 is connected to the support plate 101, the upper part of the support plate 101 is rotatably connected to the rotating rod 102, the lower side of the rotating rod 102 is connected to the limit plate 103, the limit plate 103 is clamped with the first handle 8, and the upper side of the rotating rod 102 is connected to the second handle 104.

[0025] By using the limiting mechanism 10 of the device, the first handle 8 can be limited. After the screw rod 6 is adjusted, the second handle 104 is grasped to rotate the rotating rod 102 on the support plate 101, so that the limiting plate 103 is rotated to engage with the first handle 8, thereby limiting the first handle 8 and preventing the auxiliary splint 5 from moving due to the rotation of the first handle 8.

[0026] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A manhole cover locking device, characterized in that: The invention comprises a bottom cover (1), a bottom cover (2), a connecting ring (3), a main clamping plate (4), an auxiliary clamping plate (5), a screw rod (6), a main shaft (7), a first handle (8) and a locking mechanism (9). The upper side of the bottom cover (1) is connected to the bottom cover (2), the upper side of the bottom cover (2) is connected to the connecting ring (3), the upper side of the connecting ring (3) is connected to the main clamping plate (4), the middle part of the connecting ring (3) is rotatably connected to the screw rod (6), the auxiliary clamping plate (5) is threadedly connected to the screw rod (6), the middle part of the bottom cover (1) is connected to the main shaft (7), the main shaft (7) passes through the screw rod (6), the upper part of the screw rod (6) is connected to the first handle (8), and the bottom cover (1) is provided with a locking mechanism (9) capable of locking the manhole cover (0).

2. The manhole cover locking device according to claim 1, characterized in that: The clamping mechanism (9) comprises a rotating disk (91), a sliding rod (92), a clamping plate (93) and a spring (94). The rotating disk (91) is rotatably connected to the lower side of the connecting ring (3). The rotating disk (91) is connected to the screw rod (6). A plurality of sliding rods (92) are slidably connected to the rotating disk (91). A plurality of clamping plates (93) are slidably connected to the bottom cover (1). The sliding rods (92) are all connected to adjacent clamping plates (93). A spring (94) is connected between the clamping plates (93) and the bottom cover (1). When the screw rod (6) rotates, the rotating disk (91) is driven to rotate on the connecting ring (3), so that the sliding rods (92) slide away from each other, and the clamping plates (93) are pushed to slide and open on the bottom cover (1). The spring (94) is squeezed and contracted, so that the clamping plates (93) contact the wall of the inspection well, and the bottom cover (1) is fixed on the inspection well.

3. The manhole cover locking device according to claim 2, characterized in that: The invention also comprises a limiting mechanism (10), which comprises a support plate (101), a rotating rod (102), a limiting plate (103) and a second handle (104); the upper side of the auxiliary clamping plate (5) is connected to the support plate (101); the upper part of the support plate (101) is rotatably connected to the rotating rod (102); the lower side of the rotating rod (102) is connected to the limiting plate (103); the limiting plate (103) is clamped with the first handle (8); the upper side of the rotating rod (102) is connected to the second handle (104); by grasping the second handle (104) and rotating the rotating rod (102) on the support plate (101), the limiting plate (103) is rotated to be clamped with the first handle (8).

4. The manhole cover locking device according to claim 1, characterized in that: The first handle (8) is provided with a soft pad.

5. The manhole cover locking device according to claim 2, characterized in that: The clamping plate (93) is provided with a limit block.

6. The manhole cover locking device according to claim 2, characterized in that: The clamping plates (93) are all U-shaped structures.

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