Cable well lid lifting device

Abstract

A cable well lid lifting device comprises a fixing frame and a supporting frame. The fixing frame comprises a frame body and a telescopic rod; the fixed end of the telescopic rod is vertically arranged below the frame body; the supporting frame comprises a plurality of assembling cylinders, an upper fixing plate and a lower fixing plate. The upper fixing plate and the lower fixing plate are correspondingly arranged up and down; the upper fixing plate is connected to the movable end of the telescopic rod; the plurality of assembly cylinders are arranged between the upper fixing plate and the lower fixing plate; the assembling cylinder is provided with a sliding groove, a supporting rod and a connecting rod. The sliding groove is formed in the side wall of the assembling cylinder. One end of the supporting rod is rotationally arranged at one end of the assembling cylinder; one end of the connecting rod is rotatably arranged on the supporting rod, and the other end of the connecting rod is arranged in the sliding groove in a sliding mode. The problems that when manual hoisting is adopted, efficiency is low, potential safety hazards exist, and when a crane is adopted for hoisting, cost is high, the application range is small, and operation is complex are solved.

Description

Technical Field

[0001] The utility model relates to the field of manhole cover lifting, in particular to a cable manhole cover lifting device. Background Art

[0002] With the acceleration of urbanization, the amount of underground cables laid has increased significantly. As an important infrastructure for underground cables, the number of cable wells has also increased dramatically. Cable well covers, as important components for protecting cables and inspecting wellheads, are usually made of heavy concrete materials. They are heavy and have uniform dimensions. The existing method of lifting well covers is generally to open them manually using a crowbar. This method requires the cooperation of multiple people and is not only difficult to open, but also carries the risk of the crowbar breaking and the cover slipping and damaging the cables and ancillary equipment in the well. Crane lifting, although safer and more efficient, is expensive, and the crane is large in size, has a small scope of application, is not flexible, and is complex to operate. It requires professional personnel to operate and maintain it, which increases labor and time costs. Utility Model Content

[0003] The purpose of the utility model is to provide a cable manhole cover lifting device, which solves the problems of low efficiency and potential safety hazards when manual lifting is used, and high cost, small scope of application and complicated operation when crane lifting is used.

[0004] The embodiments of the present invention are achieved through the following technical solutions:

[0005] A cable manhole cover lifting device, comprising:

[0006] The fixed frame includes a frame body and a telescopic rod; the fixed end of the telescopic rod is vertically arranged below the frame body

[0007] The support frame includes several assembly tubes, an upper fixed plate and a lower fixed plate; the upper fixed plate and the lower fixed plate are arranged correspondingly in the upper and lower parts; the upper fixed plate is connected to the movable end of the telescopic rod; several assembly tubes are arranged between the upper fixed plate and the lower fixed plate; the assembly tube is provided with a sliding groove, a support rod and a connecting rod; the sliding groove is arranged on the side wall of the assembly tube; one end of the support rod is rotatably arranged on one end of the assembly tube; one end of the connecting rod is rotatably arranged on the support rod, and the other end thereof is slidably arranged in the sliding groove.

[0008] The frame includes a fixed transverse plate, two supporting columns and a plurality of rollers; the two supporting columns are respectively arranged at the two ends of the fixed transverse plate; and the plurality of rollers are arranged at the bottom of the supporting columns.

[0009] The several assembly cylinders include an assembly main cylinder and several assembly sub-cylinders; the two ends of the assembly main cylinder are respectively fixed on the upper fixed plate and the lower fixed plate; the assembly sub-cylinder is arranged beside the assembly main cylinder, and its two ends are respectively rotatably arranged on the upper fixed plate and the lower fixed plate.

[0010] Constraint grooves are respectively provided on both sides of the sliding groove; and a clamping hole is provided at the upper end of the constraint groove.

[0011] One end of the connecting rod is provided with a sliding hole, a clamping column and a spring; the sliding hole is provided on one side of the connecting rod; the clamping column is slidably provided in the sliding hole; one end of the spring is connected to the bottom of the sliding hole, and the other end thereof is connected to one end of the clamping column.

[0012] A through slot is further provided on one side of the sliding hole; a paddle is provided on one side of the clamping column; and the paddle is slidably arranged in the through slot.

[0013] A rotating plate is rotatably provided at the bottom of the lower fixed plate; and a plurality of restraining blocks are provided on one side of the rotating plate.

[0014] A slot is provided on the side surface of one end of the support rod; the constraint block is engaged in the slot to fix the position of the support rod.

[0015] A contact plate is also provided on one side of the support rod.

[0016] The contact plate is provided with anti-slip grooves.

[0017] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] 1. The utility model is a cable manhole cover lifting device that adopts a mechanical lifting method, avoiding the problems of low efficiency and potential safety hazards during manual lifting. The device has a simple structure, convenient operation, low learning cost, and is easy to move, with a wide range of applications.

[0019] 2. The utility model provides a cable manhole cover lifting device, which uses multiple support rods at a certain angle to each other to support the manhole cover, thereby improving the stability and safety of the lifting; and the multiple support rods are relatively convenient to unfold and store, and can be used multiple times, which increases the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is attached Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 is a schematic diagram of the expansion of the support frame;

[0023] Figure 4 It is attached Figure 3 Enlarged view of point B in the middle;

[0024] Figure 5 It is attached Figure 3 Schematic diagram of the middle part structure;

[0025] Figure 6 It is a structural diagram of the assembly cylinder;

[0026] Figure 7 It is attached Figure 6 Cross-sectional view at DD in the middle;

[0027] Figure 8 It is a schematic diagram of one side of the support rod;

[0028] Figure 9 This is a schematic diagram of the other side of the support rod;

[0029] Figure 10 It is a structural diagram of the connecting rod;

[0030] Figure 11 It is attached Figure 10 Enlarged view of point C in the middle;

[0031] Figure 12 It is attached Figure 11 Partial cross-sectional view.

[0032] In the figure, 101-fixed horizontal plate, 102-support column, 103-mounting plate, 104-roller, 105-hydraulic telescopic rod, 2-support frame, 201-upper fixed plate, 202-lower fixed plate, 203-connecting shaft, 204-assembly main cylinder, 205-assembly auxiliary cylinder, 206-support rod, 2061-rod body, 2062-rotating shaft, 2063-contact plate, 2064-storage slot, 2065- Rotating column, 2066-card slot, 207-connecting rod, 2071-rotating through hole, 2072-sliding hole, 2073-through slot, 2074-card column, 2075-paddle, 2076-spring, 208-sliding slot, 209-mounting plate, 210-constraint slot, 211-card hole, 212-connecting ring, 213-connecting block, 214-rotating plate, 215-constraint plate, 216-constraint card block. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0035] like Figure 1-3 As shown, a cable manhole cover lifting device includes a fixed frame and a support frame 2; the fixed frame includes a frame body and a telescopic rod; the telescopic rod is a hydraulic telescopic rod 105, and its fixed end is vertically arranged below the frame body; the top of the support frame 2 is connected to the movable end of the hydraulic telescopic rod 105.

[0036] like Figure 1 As shown, the frame includes a fixed horizontal plate 101, two support columns 102, two mounting plates 103 and four rollers 104; the two support columns 102 are respectively arranged at both ends of the fixed horizontal plate 101; the two mounting plates 103 are horizontally connected to the bottom ends of the support columns 102 on both sides; the four rollers 104 are arranged in pairs at the bottom of the mounting plates 103 on both sides; the rollers 104 are Foma casters, which are used to move or fix the frame;

[0037] Specifically, the fixed end of the hydraulic telescopic rod 105 is vertically connected to the bottom of the fixed horizontal plate 101 .

[0038] like Figure 1-7 As shown, the support frame 2 includes three assembly cylinders, an upper fixing plate 201, a lower fixing plate 202 and a constraint mechanism; the upper fixing plate 201 and the lower fixing plate 202 are arranged correspondingly up and down; the upper fixing plate 201 is connected to the movable end of the hydraulic telescopic rod 105; the three assembly cylinders are arranged between the upper fixing plate 201 and the lower fixing plate 202 and are arranged side by side at equal distances, the middle one is the assembly main cylinder 204, and the two sides are the assembly secondary cylinders 205; the constraint mechanism is provided at the bottom of the lower fixing plate 202;

[0039] Specifically, the two ends of the assembly main cylinder 204 are fixedly connected to the upper fixed plate 201 and the lower fixed plate 202 respectively, and the two ends of the assembly secondary cylinder 205 are rotatably connected to the upper fixed plate 201 and the lower fixed plate 202 respectively;

[0040] More specifically, connecting rings 212 are provided at both ends of the assembly sub-tube 205; connecting shafts 203 are provided on the upper fixing plate 201 and the lower fixing plate 202; the connecting rings 212 are rotatably provided in the connecting shafts 203;

[0041] More specifically, a torsion spring is provided at the connection between the connecting ring 212 and the connecting shaft 203, so that the rotation range thereof is 0-45°;

[0042] More specifically, the constraint mechanism includes a connecting block 213, a rotating plate 214, a constraint plate 215 and three constraint blocks 216; the connecting block 213 is arranged at the bottom of the lower fixed plate 202; one side of the rotating plate 214 is rotated on the connecting block 213, and its rotation is electrically controlled; the constraint plate 215 is vertically arranged on the other side of the rotating plate 214; and the three constraint blocks 216 are arranged on one side edge of the constraint plate 215.

[0043] like Figure 5-8 As shown, the assembly cylinder is provided with a sliding groove 208, a support rod 206 and a connecting rod 207; the sliding groove 208 is provided on the side wall of the assembly cylinder; one end of the support rod 206 is rotatably provided on one end of the assembly cylinder; one end of the connecting rod 207 is rotatably provided on the support rod 206, and the other end thereof is slidably provided in the sliding groove 208;

[0044] Specifically, a restraining groove 210 is provided on both sides of the sliding groove 208; a clamping hole 211 is provided at the upper end of the restraining groove 210;

[0045] More specifically, a mounting plate 209 is provided on the side of the assembly cylinder, on which a through hole is provided; a rotating shaft 2062 is provided on the side of one end of the support rod 206, and is rotated about the through hole on the mounting plate 209, so that the support rod 206 can rotate around its rotating shaft 2062; a torsion spring is provided at the connection between the mounting plate 209 and the rotating shaft 2062, so that the rotation range is 0-90°.

[0046] like Figure 8-12 As shown, a receiving groove 2064 is provided on one side of the support rod 206, in which a rotating column 2065 is provided; a rotating through hole 2071 is provided at one end of the connecting rod 207, and the rotating column 2065 is rotatably arranged in the rotating through hole 2071, so that the connecting rod 207 can rotate around the rotating column 2065, and when it rotates, a portion of it can be received in the receiving groove 2064; a contact plate 2063 is also provided on one side of the support rod 206, which has anti-slip grooves for contacting the manhole cover;

[0047] Specifically, a sliding hole 2072, a clamping column 2074 and a spring 2076 are provided on the end of the connecting rod 207 away from the rotating through hole 2071; the sliding hole 2072 is provided on one side of the connecting rod 207; the clamping column 2074 is slidably provided in the sliding hole 2072; one end of the spring 2076 is connected to the bottom of the sliding hole 2072, and the other end thereof is connected to one end of the clamping column 2074; the clamping column 2074 is slidably provided in the constraint groove 210, and when it slides to its upper end, it can continue to slide into the clamping hole 211 under the action of the spring 2076, thereby fixing the position of one end of the connecting rod 207, thereby fixing the position of the support rod 206 to the horizontal position;

[0048] More specifically, a through slot 2073 is further provided on one side of the sliding hole 2072; a paddle 2075 is provided on one side of the clamping column 2074; the paddle 2075 is slidably disposed in the through slot 2073, so that the paddle 2075 can be easily moved to slide the clamping column 2074 out of the clamping hole 211;

[0049] More specifically, a slot 2066 is provided on the side surface of one end of the support rod 206; the three restraining blocks 216 can be respectively engaged with the slots 2066 on the three support rods 206 to fix the position of the support rod 206;

[0050] The working principle of this embodiment is:

[0051] The utility model relates to a cable manhole cover lifting device, which generally has a through hole on the manhole cover. The device can be moved to the top of the manhole cover by using the roller 104, and then the roller 104 is fixed, and then the support frame 2 is located above the through hole of the manhole cover, and then the hydraulic telescopic rod 105 is extended, and the support frame 2 is passed through its through hole to enter below it; then the rotating plate 214 on the restraining mechanism is controlled to rotate, and the position of the support rod 206 is released, so that the support rod 206 rotates, and the clamping column 2074 slides to its upper end along the restraining groove 210, and continues to slide into the clamping hole 211 under the action of the spring 2076, fixing the position of one end of the connecting rod 207, thereby fixing the position of the support rod 206 to the horizontal position, and at the same time, the assembly sub-cylinders 205 on both sides are expanded outwards under the action of the torsion spring. Figure 3 As shown, the support frame 2 is fixed in the expanded state, and then the hydraulic telescopic rod 105 is retracted so that the contact plate 2063 contacts the manhole cover, and then the manhole cover can be lifted.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent replacements, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cable manhole cover lifting device, characterized in that: include: The fixed frame comprises a frame body and a telescopic rod; the fixed end of the telescopic rod is vertically arranged below the frame body; The support frame includes a plurality of assembly cylinders, an upper fixing plate and a lower fixing plate; the upper fixing plate and the lower fixing plate are arranged correspondingly in the upper and lower directions; the upper fixing plate is connected to the movable end of the telescopic rod; Several of the assembly cylinders are arranged between the upper fixed plate and the lower fixed plate; the assembly cylinder is provided with a sliding groove, a support rod and a connecting rod; the sliding groove is arranged on the side wall of the assembly cylinder; one end of the support rod is rotatably arranged on one end of the assembly cylinder; one end of the connecting rod is rotatably arranged on the support rod, and the other end thereof is slidably arranged in the sliding groove.

2. A cable manhole cover lifting device according to claim 1, characterized in that: The frame includes a fixed transverse plate, two supporting columns and a plurality of rollers; the two supporting columns are respectively arranged at the two ends of the fixed transverse plate; and the plurality of rollers are arranged at the bottom of the supporting columns.

3. A cable manhole cover lifting device according to claim 1, characterized in that: The several assembly cylinders include an assembly main cylinder and several assembly sub-cylinders; the two ends of the assembly main cylinder are respectively fixed on the upper fixed plate and the lower fixed plate; the assembly sub-cylinder is arranged beside the assembly main cylinder, and its two ends are respectively rotatably arranged on the upper fixed plate and the lower fixed plate.

4. A cable manhole cover lifting device according to claim 3, characterized in that: Constraint grooves are respectively provided on both sides of the sliding groove; and a clamping hole is provided at the upper end of the constraint groove.

5. A cable manhole cover lifting device according to claim 4, characterized in that: One end of the connecting rod is provided with a sliding hole, a clamping column and a spring; the sliding hole is provided on one side of the connecting rod; the clamping column is slidably provided in the sliding hole; one end of the spring is connected to the bottom of the sliding hole, and the other end thereof is connected to one end of the clamping column.

6. A cable manhole cover lifting device according to claim 5, characterized in that: A through slot is further provided on one side of the sliding hole; a paddle is provided on one side of the clamping column; and the paddle is slidably arranged in the through slot.

7. A cable manhole cover lifting device according to claim 1, characterized in that: A rotating plate is rotatably provided at the bottom of the lower fixed plate; and a plurality of restraining blocks are provided on one side of the rotating plate.

8. A cable manhole cover lifting device according to claim 7, characterized in that: A slot is provided on the side surface of one end of the support rod; the constraint block is engaged in the slot to fix the position of the support rod.

9. A cable manhole cover lifting device according to claim 8, characterized in that: A contact plate is also provided on one side of the support rod.

10. A cable manhole cover lifting device according to claim 9, characterized in that: The contact plate is provided with anti-slip grooves.

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