Adjustable well lid opening device

Abstract

The utility model relates to the technical field of municipal management, in particular to an adjustable well lid opening device. According to the adjustable well lid opening device, adaptive adjustment can be conducted when a well lid is lifted and opened, force needed when a lever is used is reduced, and the force of the lever for lifting the well lid is increased. An adjustable well lid opening device comprises a supporting plate, a lever, a telescopic sleeve, an adjusting screw and the like, the upper portion of the supporting plate is rotationally connected with the lever, the right side of the upper portion of the lever is slidably connected with the telescopic sleeve, the left portion of the telescopic sleeve is in threaded connection with the adjusting screw, the bottom of the adjusting screw can penetrate through the telescopic sleeve, and the bottom of the adjusting screw is in extrusion fit with the lever. By rotating and loosening the adjusting screw, then sliding the telescopic sleeve to extend the right side of the lever, and then screwing the adjusting screw, adaptive adjustment can be carried out when the well lid is lifted and opened, so that the force required when the lever is used is reduced, and the force of the lever for lifting the well lid is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal management, in particular to an adjustable manhole cover opening device. Background Art

[0002] The opening of manhole covers in municipal management involves many situations such as daily maintenance, emergency repairs, and regular inspections of urban infrastructure.

[0003] Existing devices for opening manhole covers usually use the principle of levers to lift the manhole cover from the ground to achieve the purpose of opening. However, one end of the lever of the existing device that applies force cannot be adjusted in length. When the manhole cover is tightly connected to the ground, the unadjustable lever will make it difficult to open the manhole cover, and the operation is labor-intensive.

[0004] Therefore, an adjustable manhole cover opening device has been developed which can be adapted and adjusted when lifting and opening the manhole cover, reduce the force required when using the lever, and increase the force of the lever to lift the manhole cover. Utility Model Content

[0005] In order to overcome the shortcomings of the existing device in that one end of the lever for applying force cannot be adjusted in length, when the manhole cover is tightly connected to the ground, the unadjustable lever will make it difficult to open the manhole cover and the operation is labor-intensive, the utility model provides an adjustable manhole cover opening device that can be adaptively adjusted when lifting and opening the manhole cover, thereby reducing the force required when using the lever and increasing the force of the lever to lift the manhole cover.

[0006] Technical solution: An adjustable manhole cover opening device, including a support plate, a lever, a telescopic sleeve, an adjusting screw, a rotating block, a sliding rod, a stopper and a supporting mechanism. The upper part of the support plate is rotatably connected to the lever, the upper right side of the lever is slidably connected to the telescopic sleeve, the left part of the telescopic sleeve is threadedly connected to the adjusting screw, the bottom of the adjusting screw can pass through the telescopic sleeve, the bottom of the adjusting screw is squeezed together with the lever, the left part of the lever is rotatably connected to the rotating block, the rotating block is slidably connected to the sliding rod, the lower part of the sliding rod is rotatably connected to the stopper, and support mechanisms are provided at the front and rear parts of the support plate.

[0007] Furthermore, a paddle is provided on the upper portion of the positioning device.

[0008] Furthermore, a rotating disk is provided on the top of the adjusting screw.

[0009] Furthermore, the supporting mechanism includes a guide sleeve, a rotating foot, a connecting frame and a synchronous frame. The guide sleeves are connected to the upper sides of the front and rear parts of the supporting plate, the left and right parts of the supporting plate are rotatably connected to multiple rotating feet, the tops of the rotating feet are connected to connecting frames, and the guide sleeves are all sliding synchronous frames. The connecting frames are slidably and rotatably connected to adjacent synchronous frames. The sliding of the synchronous frame controls the rotation of the rotating feet through the connecting frame. When the support plate needs to be supported and stabilized, the rotation of the rotating frame is controlled by the synchronous frame to extend the support area of ​​the support plate, thereby increasing the support stability of the support plate.

[0010] Furthermore, it also includes a distance adjusting mechanism, which includes a support block, an adjusting screw and a threaded sleeve. The support block is connected to the upper left side of the rotating block, the adjusting screw is rotatably connected to the support block, the threaded sleeve is connected to the upper part of the sliding rod, and the threaded sleeve is threadedly connected to the adjusting screw. The adjusting screw is rotated to control the threaded sleeve to drive the sliding rod to move up and down, and the sliding rod moves up and down to control the height of the positioner.

[0011] Furthermore, a knob is provided on the top of the adjusting screw.

[0012] The beneficial effects of the utility model are as follows: the utility model can perform adaptive adjustment when lifting and opening the manhole cover by loosening the adjusting screw by turning, then sliding the telescopic sleeve to extend the right side of the lever, and then tightening the adjusting screw, thereby reducing the force required when using the lever and increasing the force of the lever to lift the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the support mechanism of the utility model.

[0017] Figure 5 It is a three-dimensional structural schematic diagram of the distance adjustment mechanism of the utility model.

[0018] In the above figures: 1: support plate, 2: lever, 3: telescopic sleeve, 4: adjusting screw, 5: rotating block, 6: sliding rod, 7: positioner, 8: supporting mechanism, 81: guide sleeve, 82: rotating foot, 83: connecting frame, 84: synchronous frame, 9: distance adjustment mechanism, 91: support block, 92: adjusting screw, 93: threaded sleeve. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] An adjustable manhole cover opening device, such as Figure 1-Figure 3 As shown, it includes a support plate 1, a lever 2, a telescopic sleeve 3, an adjusting screw 4, a rotating block 5, a sliding rod 6, a stopper 7 and a supporting mechanism 8. The upper part of the support plate 1 is rotatably connected to the lever 2, the upper right side of the lever 2 is slidably connected to the telescopic sleeve 3, the left part of the telescopic sleeve 3 is threadedly connected to the adjusting screw 4, the bottom of the adjusting screw 4 can pass through the telescopic sleeve 3, the bottom of the adjusting screw 4 is pressed and fitted with the lever 2, the left part of the lever 2 is rotatably connected to the rotating block 5, the rotating block 5 is slidably connected to the sliding rod 6, the lower part of the sliding rod 6 is rotatably connected to the stopper 7, and the front and rear parts of the support plate 1 are provided with supporting mechanisms 8.

[0021] like Figure 1 and Figure 4 As shown, the support mechanism 8 includes a guide sleeve 81, a rotating foot 82, a connecting frame 83 and a synchronous frame 84. The guide sleeve 81 is connected to the upper sides of the front and rear parts of the support plate 1, and the left and right parts of the support plate 1 are rotatably connected to multiple rotating feet 82. The tops of the rotating feet 82 are connected to connecting frames 83. The guide sleeves 81 are all slidably connected to synchronous frames 84, and the connecting frames 83 are slidably and rotatably connected to adjacent synchronous frames 84.

[0022] like Figure 1 and Figure 5 As shown, it also includes a distance adjustment mechanism 9, which includes a support block 91, an adjusting screw 92 and a threaded sleeve 93. The upper left side of the rotating block 5 is connected to the support block 91, the adjusting screw 92 is rotatably connected to the support block 91, the upper part of the sliding rod 6 is connected to the threaded sleeve 93, and the threaded sleeve 93 is threadedly connected to the adjusting screw 92.

[0023] When the utility model is in use, the support plate 1 is first set beside the manhole cover that needs to be opened, and the synchronous frame 84 slides through the connecting frame 83 to control the rotation of the rotating foot 82. When the support plate 1 needs to be supported and stabilized, the synchronous frame 84 is used to control the rotation of the rotating frame to extend the support area of ​​the support plate 1, thereby increasing the support stability of the support plate 1. Then, the adjusting screw 92 is rotated to control the threaded sleeve 93 to drive the slide bar 6 to move up and down. The slide bar 6 moves up and down to control the height of the positioner 7. Then, the telescopic sleeve 3 is used to control the rotation of the lever 2 so that the positioner 7 penetrates into the hole on the manhole cover. Then, the positioner 7 is rotated so that the positioner 7 forms a position with the manhole cover. Then, the telescopic sleeve 3 is pressed downward, and the telescopic sleeve 3 moves upward to control the left part of the lever 2 to lift upward, and the stopper 7 is driven to move upward by the rotating block 5 and the sliding rod 6. The stopper 7 lifts the manhole cover upward. When the manhole cover is difficult to lift, loosen the adjusting screw 4, and then slide the telescopic sleeve 3 to extend the right side of the lever 2, and then tighten the adjusting screw 4. The force required for using the lever 2 is reduced by extending the telescopic sleeve 3, and the force of the lever 2 to lift the manhole cover is increased. After the manhole cover is lifted, move the manhole cover aside, and then rotate the stopper 7 to align the stopper 7 with the hole on the manhole cover, and then the stopper 7 can be taken out of the manhole cover.

[0024] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. An adjustable manhole cover opening device, characterized in that: The invention comprises a support plate (1), a lever (2), a telescopic sleeve (3), an adjusting screw (4), a rotating block (5), a sliding rod (6), a stopper (7) and a supporting mechanism (8). The upper part of the support plate (1) is rotatably connected with the lever (2), the upper right side of the lever (2) is slidably connected with the telescopic sleeve (3), the left part of the telescopic sleeve (3) is threadedly connected with the adjusting screw (4), the bottom of the adjusting screw (4) can pass through the telescopic sleeve (3), the bottom of the adjusting screw (4) is pressed and matched with the lever (2), the left part of the lever (2) is rotatably connected with the rotating block (5), the upper part of the rotating block (5) is slidably connected with the sliding rod (6), the lower part of the sliding rod (6) is rotatably connected with the stopper (7), and the front and rear parts of the support plate (1) are both provided with supporting mechanisms (8).

2. An adjustable manhole cover opening device according to claim 1, characterized in that: The upper part of the positioning device (7) is provided with a paddle.

3. An adjustable manhole cover opening device according to claim 2, characterized in that: A rotating disk is arranged on the top of the adjusting screw (4).

4. An adjustable manhole cover opening device according to claim 3, characterized in that: The support mechanism (8) comprises a guide sleeve (81), a rotating foot (82), a connecting frame (83) and a synchronous frame (84); the upper sides of the front and rear parts of the support plate (1) are both connected with the guide sleeve (81); the left and right parts of the support plate (1) are both rotatably connected with a plurality of rotating feet (82); the tops of the rotating feet (82) are both connected with the connecting frame (83); the guide sleeve (81) is provided with a sliding synchronous frame (84); and the connecting frame (83) is slidably and rotatably connected with the adjacent synchronous frame (84).

5. An adjustable manhole cover opening device according to claim 4, characterized in that: The invention also comprises a pitch adjustment mechanism (9), which comprises a support block (91), an adjusting screw rod (92) and a threaded sleeve (93). The upper left side of the rotating block (5) is connected to the support block (91), the adjusting screw rod (92) is rotatably connected to the support block (91), the upper part of the sliding rod (6) is connected to the threaded sleeve (93), and the threaded sleeve (93) is threadedly connected to the adjusting screw rod (92).

6. An adjustable manhole cover opening device according to claim 5, characterized in that: The top of the adjusting screw rod (92) is provided with a knob.

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