A multifunctional cable well lid plate lifting device

Abstract

A multifunctional cable well cover plate lifting device relates to the field of cranes, comprising: a lifting unit, a lifting base and a lifting driver; a pipe sleeve lifting connection is connected to the lifting base; an outer pipe is installed in the pipe sleeve; a rotating seat is installed at the lower end of the outer pipe; a rotating part is rotatably installed below the fixed part around the central shaft; a plate limiting block is used for limiting the plate opening of the cable well cover plate; the outer pipe and the rotating seat are coaxially provided with a first inner cavity in linear communication; a moving wheel is installed at the lower end of the inner pipe; the inner pipe drives the moving wheel to extend or retract in the first inner cavity; the lifting driver is installed on the lifting base, and the lifting driver is used for driving the outer pipe or the inner pipe to move up and down; the output end of the pipe sleeve lifter is connected to the pipe sleeve, which is used for driving the pipe sleeve to lift and drive the plate limiting block to lift. The scheme can improve the lifting flexibility of the cable well cover plate, and solve the problem that the existing cable well cover plate lifting device cannot simultaneously have rotating and moving functions, resulting in low lifting efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cranes, in particular to a multifunctional lifting device for cable well cover plates. BACKGROUND

[0002] The existing lifting device for cable well cover plates is mainly lifted manually or mechanically. Manual lifting mainly involves inserting a support rod into the plate opening of the cable well cover plate, and then lifting the cable well cover plate by lever principle. However, since the number of cable well cover plates is usually large, this method requires a lot of labor and can only be used to open the cable well cover plates, but it is difficult to close the cable well cover plates. Mechanical lifting mainly uses an electric hoist gantry to drive the cable well cover plates to open. However, the electric hoist gantry is large in size and can only move in a straight line, so it cannot adjust the moving direction and angle of the cable well cover plates as needed, which prolongs the falling path of the cable well cover plates and reduces the flexibility. SUMMARY

[0003] The present application aims to provide a multifunctional lifting device for cable well cover plates, which has rotating lifting function and straight-line moving transmission function, and can choose to rotate the outer tube to open the cable well cover plates or choose to move the moving wheels of the inner tube to transmit the cable well cover plates. This scheme can improve the lifting flexibility of the cable well cover plates.

[0004] To achieve this purpose, the present application adopts the following technical scheme:

[0005] A multifunctional lifting device for cable well cover plates, comprising: a lifting unit, a lifting base and a lifting driver.

[0006] The lifting unit is installed on the lifting base. The lifting unit comprises: a tube sleeve, an outer tube, a rotating seat, an inner tube, a plate limiting block, a moving wheel and a tube sleeve lifter.

[0007] The tube sleeve lifter is connected to the lifting base. The outer tube is installed on the tube sleeve in a liftable manner. The lower end of the outer tube is provided with the rotating seat. The rotating seat is provided with a fixed part and a rotating part. The rotating part is rotatably installed below the fixed part about a middle shaft. The plate limiting block is installed on the outer side of the tube sleeve to limit the plate opening of the cable well cover plate. The outer tube and the rotating seat are coaxially provided with a first inner cavity in straight-line communication. The lower end of the inner tube is provided with the moving wheel. The inner tube is liftable and limited in the first inner cavity, so as to drive the moving wheel to extend out of or retract into the first inner cavity.

[0008] The lifting driver is installed on the lifting base. The output end of the lifting driver is detachably connected to the outer tube or the inner tube, so as to drive the outer tube or the inner tube to move up and down. The output end of the tube sleeve lifter is connected to the tube sleeve, so as to drive the tube sleeve to move up and down and drive the plate limiting block to move up and down.

[0009] Optimally, the landing units are arranged in pairs on the landing base and are located at left and right positions of the landing base respectively; one of the landing units is provided with the rotating seat, and the other landing unit is provided with a separating seat;

[0010] The separating seat is provided with a connecting part and a separating part, the connecting part is mounted on the lower end of the outer tube, and the separating part is detachably connected to the connecting part; the separating seat and the outer tube connected thereto are provided with a coaxial second inner cavity, and the inner tube is liftably limited in the second inner cavity to drive the moving wheels to extend or retract in the second inner cavity.

[0011] Optimally, the number of the lifting drivers corresponds to the number of the landing units, and the output end of each lifting driver is connected to the outer tube or the inner tube of one landing unit;

[0012] When the connecting part is separated from the separating part, the output end of the lifting driver drives the inner tube to descend, so that the moving wheels move below the connecting part.

[0013] Optimally, the separating part is magnetically connected to the connecting part.

[0014] Optimally, the tube sleeve is rotatably and liftably limited in the landing base; after the plate limiting block extends into the plate opening, the plate limiting block is rotated to a length direction parallel to the width direction of the plate opening, so that the plate limiting block is limited in the plate opening.

[0015] Optimally, further comprising: a connected shell;

[0016] The connected shell is provided with a shell cavity; the connected shell is integrally formed and combined with the cable well cover plate, the plate opening is located in the middle of the opening of the shell cavity; the shell cavity is sequentially provided with a communication part and a clamping part from top to bottom; the plate limiting block moves downward through the communication part and the clamping part, and is clamped in the clamping part after rotation adjustment, and the clamping part lifts the communication part upward.

[0017] Optimally, the landing base is provided with a connecting arm, the connecting arm is provided with a columnar arm opening, and the tube sleeve is rotatably and liftably limited in the columnar arm opening.

[0018] Optimally, further comprising: a connector;

[0019] The connector is provided with a horizontal plate and a vertical plate, the vertical plate is vertically connected to the horizontal plate; the horizontal plate and the vertical plate are respectively provided with a connecting clamp at different height positions, and the connecting clamp detachably clamps the outer tube or the inner tube;

[0020] The output end of the lifting driver is connected to the connector for driving the connector to move up and down.

[0021] The lifting unit can further comprise a limiting pin.

[0022] The upper end of the outer tube and / or the upper end of the inner tube is provided with a limiting hole; one end of the limiting pin is detachably inserted into the limiting hole horizontally.

[0023] The tube sleeve lifter can comprise an end seat, a swing seat, a swing plate, a rotating arm and a swing driver.

[0024] The end seat is movably sleeved on the tube sleeve and located below the limiting head of the tube sleeve; the swing seat is installed on the lifting base; the middle part of the swing plate is swingably connected to the swing seat; one end of the rotating arm is rotatably and adjustably connected to one end of the swing plate; the other end of the rotating arm is rotatably and adjustably connected to the end seat; and the swing driver is installed on the other end of the swing plate.

[0025] When the output end of the tube sleeve lifter moves downward, the output end of the tube sleeve lifter directly or indirectly drives the swing driver to move downward, so that the swing plate rotates to drive the rotating arm to move upward, and the end seat and the tube sleeve move upward.

[0026] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0027] The lifting device of the multifunctional cable well cover plate has rotating lifting function and linear movement transmission function, can rotate the outer tube to open the cable well cover plate or move the inner tube to transmit the cable well cover plate, improves the lifting flexibility of the cable well cover plate, and solves the problem of low lifting efficiency caused by the fact that the existing lifting device of the cable well cover plate cannot simultaneously have rotating and moving functions. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a cross-sectional structure schematic diagram of one embodiment of the lifting device in a moving lifting mode;

[0029] Figure 2 is a cross-sectional structure schematic diagram of one embodiment of the lifting device in a rotating lifting mode;

[0030] Figure 3 is Figure 2 is an enlarged view of part A in FIG. 6;

[0031] Figure 4 is a top view of one embodiment of the lifting device in a rotating lifting mode;

[0032] Figure 5 is a top view of one embodiment of the landing device in the moving landing mode;

[0033] Figure 6 is a schematic view of a sectional structure of one embodiment of the landing device.

[0034] wherein:

[0035] the landing unit 1, the landing base 2, the lifting driver 3; the connected shell 4; the connector 5;

[0036] the pipe sleeve 11, the outer pipe 12, the rotating seat 13, the inner pipe 14, the plate limiting block 15, the moving wheel 16, the pipe sleeve lifter 17; the separation seat 18; the limiting plug 19;

[0037] the limiting head 111; the first inner cavity 121;

[0038] the fixed part 131, the rotating part 132;

[0039] the end seat 171, the swing seat 172, the swing plate 173, the rotating arm 174, the swing driving member 175;

[0040] the connecting part 181, the separation part 182; the second inner cavity 183;

[0041] the connecting arm 21; the columnar arm opening 22; the communication part 41, the clamping part 42;

[0042] the transverse plate 51, the vertical plate 52; the connecting clamp 53;

[0043] the cable well cover plate 9; the plate opening 90; the support step 91; the cable well opening 92. DETAILED DESCRIPTION

[0044] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or like reference numerals in the drawings represent the same or like elements or elements having the same or similar function. The embodiments described below are exemplary only, and are not to be understood as limiting the present application.

[0045] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features, which are used to distinguish the described features, and there is no order or difference. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0046] As Figures 1-6 A multifunctional cable well cover plate lifting device, comprising: a lifting unit 1, a lifting base 2 and a lifting driver 3;

[0047] The lifting unit 1 is installed on the lifting base 2; the lifting unit 1 comprises: a sleeve 11, an outer tube 12, a rotating seat 13, an inner tube 14, a plate limiting block 15, a moving wheel 16 and a sleeve lifter 17;

[0048] The sleeve 11 is connected to the lifting base 2 in a lifting manner; the outer tube 12 is installed on the sleeve 11 in a lifting manner; the lower end of the outer tube 12 is provided with the rotating seat 13; the rotating seat 13 is provided with a fixed part 131 and a rotating part 132, the rotating part 132 is rotatably installed below the fixed part 131; the plate limiting block 15 is installed on the outside of the sleeve 11, and is used for limiting the plate opening 90 of the cable well cover plate 9; the outer tube 12 and the rotating seat 13 are coaxially provided with a first inner cavity 121 in linear communication; the lower end of the inner tube 14 is provided with the moving wheel 16; the inner tube 14 is limited in the first inner cavity 121 in a lifting manner, and drives the moving wheel 16 to extend out of or retract into the first inner cavity 121;

[0049] The lifting driver 3 is installed on the lifting base 2, the output end of the lifting driver 3 is detachably connected to the outer tube 12 or the inner tube 14, and is used for driving the outer tube 12 or the inner tube 14 to move in a lifting manner; the output end of the sleeve lifter 17 is connected to the sleeve 11, and is used for driving the sleeve 11 to move in a lifting manner, and driving the plate limiting block 15 to move in a lifting manner.

[0050] The utility model provides a multifunctional cable well lid plate lifting device, which has rotating lifting function and linear moving conveying function, can rotate and open the cable well lid plate 9 by rotating the outer tube 12 or can move and convey the cable well lid plate 9 by moving the moving wheel 16 of the inner tube 14, and can improve the lifting flexibility of the cable well lid plate 9 and solve the problem of low lifting efficiency caused by the fact that the existing cable well lid plate lifting device cannot simultaneously have rotating and moving functions.

[0051] Specifically, as known in the art, the cable well lid plate 9 is generally installed at the cable well opening, and the inner side of the cable well opening is provided with a support step 91 for upwardly supporting the cable well lid plate 9; the cable well lid plate 9 is generally provided with a plate opening 90 for connecting with the lifting end of the lifting device; the lever principle can be used to extend the rod into the plate opening 90 to lift the cable well lid plate; the cable well lid plate 9 is mainly a metal plate integrally formed with cement, and the plate opening 90 can be reserved at the position close to the support step 91 during forming; the outer tube 12 is provided with the inner tube 14; the plate limiting block 15 outside the tube sleeve 11 can be clamped in the plate opening 90, and the cable well lid plate 9 can be lifted by the plate limiting block 15 only by connecting the tube sleeve 11 through the tube sleeve lifter 17; the output end of the lifting driver 3 can be adjusted to be connected to the outer tube 12 or the inner tube 14 as needed for driving the outer tube 12 or the inner tube 14 to move downward. The outer tube 12 or the inner tube 14 can be relatively lifted on the lifting base 2; when the rotating lifting mode is selected, the lifting driver 3 drives the outer tube 12 to move downward, the outer tube 12 relatively descends on the tube sleeve 11, the lower end of the outer tube 12 extends downward below the cable well lid plate 9, and the rotating seat 13 below the outer tube 12 abuts against the support step 91; at this time, the tube sleeve lifter 17 can be called to drive the tube sleeve 11 to ascend, the plate limiting block 15 lifts the cable well lid plate 9 upward, and the cable well lid plate 9 is separated upward from the cable well opening, such as Figure 2 ; the rotating seat 13 is provided with a fixed part 131 and a rotating part 132, the rotating part 132 is located below the fixed part 131, and the rotating part 132 contacts the support step 91 to serve as the main support structure; at this time, the rotating seat 13 of one of the lifting units 1 can be rotated around the central axis, the lifting base 2 can be controlled by manual adjustment or mechanical adjustment to rotate around the rotating seat 13, and the cable well lid plate 9 is driven to rotate around the rotating seat 13 to be separated from the cable well opening, so that the cable well opening can be rotated by 90-180°, such as Figure 4 ; only by resetting the tube sleeve lifter 17, the cable well lid plate 9 can be placed beside the cable well opening, Figure 4The dashed line is the moving starting position. On the other hand, when the moving and lifting mode is selected, the lifting driver 3 drives the inner tube 14 to move downward, and the moving wheels 16 at the lower end of the inner tube 14 extend downward below the first inner cavity 121. The moving wheels 16 are located below the cable well cover plate 9 and contact the support step 91. At this time, the sleeve lifter 17 can be driven to lift the sleeve 11 upward, and the plate limiting block 15 lifts the cable well cover plate 9 upward. The cable well cover plate 9 is lifted away from the cable well opening. At this time, the moving wheels 16 are equivalent to lifting the cable well cover plate 9 upward, and the cable well cover plate 9 is in a state of being lifted away from the ground, as shown in Figure 1 At this time, the lifting base 2 can be controlled to move horizontally in a manual or mechanical adjustment mode, and the cable well cover plate 9 can be moved horizontally to be close to the cable well opening. It is convenient to pre-transport a plurality of cable well cover plates 9 to the vicinity of the cable well opening before sealing the well. It is also convenient for the lifting base 2 to move horizontally in the cable well opening, and a plurality of cable well cover plates 9 can be laid in sequence along the length direction of the cable well opening, as shown in Figure 5 ; Figure 5 The dashed line is the moving ending position. In this way, the present scheme can select the rotating and lifting mode or the moving and lifting mode as needed. The problem that the existing cable well cover plate lifting device cannot simultaneously have rotating and moving functions is solved.

[0052] The lifting driver 3 is a mechanism known to have a lifting function, such as a combination of a cylinder, a motor and a screw rod, a combination of a gear and a rack, a mechanical arm, etc., as long as it can drive the outer tube 12 or the inner tube 14 to lift.

[0053] Optimally, the lifting unit 1 is arranged in pairs on the lifting base 2 and is located at the left and right positions of the lifting base 2 respectively. One of the lifting units 1 is provided with the rotating seat 13, and the other lifting unit 1 is provided with the separating seat 18.

[0054] The separating seat 18 is provided with a connecting part 181 and a separating part 182. The connecting part 181 is mounted on the lower end of the outer tube 12, and the separating part 182 is detachably connected to the connecting part 181. The separating seat 18 and the outer tube 12 connected thereto are provided with a coaxially communicated second inner cavity 183, and the inner tube 14 is located in the second inner cavity 183 and drives the moving wheels 16 to extend or retract in the second inner cavity 183.

[0055] As shown in Figure 6, the landing unit 1 is provided in pairs, one of which is provided with a rotating seat 13, and the other is provided with a separating seat 18; the rotating seat 13 can provide rotating support for the landing base 2, that is, the landing base 2 can rotate around one end of the rotating seat 13, and the other end of the landing base 2 and its separating seat 18 can rotate around the rotating seat 13 as the center; and the separating seat 18 has a separable connecting portion 181 and a separating portion 182, and the separating portion 182 can be separated from the connecting portion 181; when the outer tube 12 is located inside the cable well opening, the inner wall of the cable well opening blocks the lower part of the outer tube 12 during the rotating landing, such as Figure 4 ; for this, the present scheme adopts a separable separating seat 18, the separating portion 182 of the separating seat 18 can be detached from the connecting portion 181, and when the other end of the landing base 2 rotates, the inner wall of the cable well opening drives the separating portion 182 to separate from the connecting portion 181, so that the separating portion 182 remains in the cable well opening; at the same time, after the separating portion 182 is separated, the bottom surface of the cable well cover plate 9 is close to the ground, and the cable well cover plate 9 is not easy to hurt the worker.

[0056] Optimally, the number of the lifting drives 3 corresponds to the landing units 1, and the output end of each lifting drive 3 is connected to the outer tube 12 or the inner tube 14 of one landing unit 1;

[0057] When the connecting portion 181 is separated from the separating portion 182, the output end of the lifting drive 3 drives the inner tube 14 to descend, so that the moving wheel 16 moves to the lower part of the connecting portion 181.

[0058] The present scheme preferably uses multiple lifting drives 3 to correspond to one landing unit 1 respectively, for driving and moving the outer tube 12 or the inner tube 14 of one landing unit 1; when the rotating landing mode is selected, one of the lifting drives 3 drives the outer tube 12 and its rotating seat 13 to descend to the support step 91 as the rotating fulcrum; before the cable well cover plate 9 is separated from the cable well opening, the other lifting drive 3 is connected to the inner tube 14 and maintains the initial state; when the cable well cover plate 9 is separated from the cable well opening, and the inner wall of the cable well opening drives the connecting portion 181 to separate from the separating portion 182, the cable well cover plate 9 is close to the ground in the area of the separating seat 18, but still needs manual support; for this, in the optimal embodiment, the lifting drive 3 corresponding to the separating seat 18 can drive the inner tube 14 of the landing unit 1 to move downward, and the moving wheel 16 of the inner tube 14 can move to the lower part of the connecting portion 181, thereby contacting the ground.

[0059] Optimally, the separating portion 182 is magnetically connected to the connecting portion 181.

[0060] One of the separation part 182 and the connecting part 181 is provided with a magnet piece, and the other is provided with a magnet piece or a metal piece, and the separation part 182 is magnetically attracted to the connecting part 181; the cable well opening limits the separation part 182, which can be separated from the connecting part 181 during the overall rotation of the landing base 2, so that the separation part 182 is left in the cable well opening. Subsequently, after the cable well cover plate 9 falls to the ground, the separation part 182 is reinstalled on the connecting part 181.

[0061] Optimally, the sleeve 11 can be rotatably and liftable limited in the landing base 2; after the plate limiting block 15 extends into the plate opening 90, the plate limiting block 15 is rotated to the length direction parallel to the width direction of the plate opening 90, so that the plate limiting block 15 is limited in the plate opening 90.

[0062] The sleeve 11 can be relatively rotatable and relatively liftable limited in the landing base 2, which can facilitate the adaptive lifting adjustment of the outer tube 12 and the rotating seat 13, and ensure that when there is a height difference between the landing base 2 and the plate limiting block 15 (or the moving wheel 16), the landing base 2 can still contact the ground, and the rotating seat 13 or the moving wheel 16 can still contact the support step 91.

[0063] As Figure 4 , the plate opening 90 has a length direction X and a width direction Y, and the plate limiting block 15 also has a length direction and a width direction; when the plate limiting block 15 enters the plate opening 90, the inner diameter of the plate opening 90 is greater than the outer diameter of the plate limiting block 15; thus, the plate limiting block 15 is generally directed to the length direction of the plate opening 90 in the length direction, that is, it can extend into the plate opening 90 from top to bottom, and the liftable adjustment of the sleeve 11 provides this movability; when the plate limiting block 15 moves downward below the plate opening 90, the sleeve 11 can be continuously rotated to drive the plate limiting block 15 to rotate, so that the plate limiting block 15 is rotated to the length direction parallel to the width direction of the plate opening 90, and the plate limiting block 15 is limited in the plate opening 90; at this time, only the sleeve lifter 17 needs to be started to drive the outer tube 12 or the inner tube 14 to lift, that is, to lift the cable well cover plate 9.

[0064] Optimally, it also includes a connected shell 4;

[0065] The connected shell 4 is provided with a shell cavity; the connected shell 4 is integrally formed with the cable well cover plate 9, and the plate opening 90 is located in the opening middle part of the shell cavity; the shell cavity is sequentially provided with a communication part 41 and a clamping part 42 from top to bottom; the plate limiting block 15 moves downward through the communication part 41 and the clamping part 42, and is clamped in the clamping part 42 after rotation adjustment, and the clamping part 42 upwardly lifts the communication part 41.

[0066] The scheme adds the connected shell 4, which is integrally formed on the cable well cover plate 9. Specifically, the connected shell 4 is formed on the cable well cover plate 9 by cement, so that the shell cavity is aligned with the plate opening 90 of the cable well cover plate 9. The shell cavity is divided into two parts: the communication part 41 and the clamping part 42. When the plate limiting block 15 is installed, the plate limiting block 15 passes through the plate opening 90, the communication part 41 and the clamping part 42, and then the adjusting sleeve 11 is rotated. The sleeve 11 drives the plate limiting block 15 to rotate in the clamping part 42. The plate limiting block 15 rotates to the length direction parallel to the width direction of the plate opening 90, so as to be clamped in the clamping part 42. Thus, the clamping part 42 can lift the communication part 41 upward in the rotating or moving mode.

[0067] Optimally, the lifting base 2 is provided with a connecting arm 21, which is provided with a column-shaped arm opening 22. The sleeve 11 is rotatably and liftable limited in the column-shaped arm opening 22.

[0068] The connecting arm 21 is provided with a column-shaped arm opening 22, and the sleeve 11 is arranged in the column-shaped arm opening 22. The sleeve 11 can rotate along the central axis of the column-shaped arm opening 22 and can be lifted along the length direction of the column-shaped arm opening 22. Thus, the position of the sleeve 11 can be conveniently and adaptively adjusted. The limiting of the sleeve 11 in the column-shaped arm opening 22 can be realized by a known way, for example, a clamping block is arranged at the end of the sleeve 11 to prevent the sleeve 11 from being separated from the column-shaped arm opening 22.

[0069] Optimally, it further comprises a connector 5.

[0070] The connector 5 is provided with a horizontal plate 51 and a vertical plate 52, and the vertical plate 52 is vertically connected to the horizontal plate 51. The horizontal plate 51 and the vertical plate 52 are respectively provided with a connecting clamp 53 at different height positions, and the connecting clamp 53 detachably clamps the outer tube 12 or the inner tube 14.

[0071] The output end of the lifting driver 3 is connected to the connector 5, which is used to drive the connector 5 to move up and down.

[0072] This solution allows connector 5 to be selectively connected to either the outer tube 12 or the inner tube 14 as needed. Specifically, connector 5 has a horizontally extending horizontal plate 51 and a vertically extending vertical plate 52. The horizontal plate 51 and the vertical plate 52 can be connected in a T-shape or an L-shape, etc. In this way, connector 5 spatially distributes two connecting clamps 53 staggered. One connecting clamp 53 can clamp the outer tube 12 as needed, and the other connecting clamp 53 can clamp the inner tube 14 as needed. Thus, when the connecting clamp 53 of connector 5 clamps the outer tube 12 (or simultaneously clamps the outer tube 12 and the inner tube 14), it is equivalent to the output end of the lifting driver 3 being indirectly connected to the outer tube 12, which can drive the outer tube 12 to move up and down. When the connecting clamp 53 of connector 5 only clamps the inner tube 14, it is equivalent to the output end of the lifting driver 3 being indirectly connected to the inner tube 14, which can drive the inner tube 14 to move up and down. The connecting clamp 53 is a known mechanism with clamping function, which only needs to connect the inner tube 14 or the outer tube 12.

[0073] In this solution, the pipe sleeve lifting device 17 is replaced by a known mechanism with a driving lifting function, such as a combination of a cylinder, a motor and a lead screw, or an electric hoist, as long as the pipe sleeve 11 is lifted. In the optimal embodiment, this solution uses a seesaw-type driving lifting structure; the lifting unit 1 also includes a limiting pin 19;

[0074] The upper end of the outer tube 12 and / or the upper end of the inner tube 14 are provided with a limiting insertion hole; one end of the limiting pin 19 can be detachably inserted horizontally into the limiting insertion hole.

[0075] In this design, the outer tube 12 and inner tube 14 can be provided with limiting holes at their upper ends. When one end of the limiting pin 19 is horizontally installed in the limiting hole, the other end of the limiting pin 19 is away from the limiting hole. Therefore, the limiting pin 19 extends horizontally between the outer tube 12 and the sleeve 11. Without the connector 5 clamping the outer tube 12, the limiting pin 19 horizontally spans between the outer tube 12 and the sleeve 11, which can restrict the outer tube 12 from moving downward. Similarly, the other limiting pin 19 horizontally spans between the outer tube 12 and the inner tube 14. Without the connector 5 clamping the outer tube 12, the limiting pin 19 horizontally spans between the outer tube 12 and the inner tube 14, which can restrict the inner tube 14 from moving downward.

[0076] Optimally, the sleeve lifting device 17 includes: an end seat 171, a swing seat 172, a swing plate 173, a rotating arm 174, and a swing drive 175;

[0077] The end seat 171 is movably sleeved on the sleeve 11 and located below the limiting head 111 of the sleeve 11; the swing seat 172 is installed on the landing base 2, the middle part of the swing plate 173 is swingably connected to the swing seat 172; one end of the rotating arm 174 is swingably connected to one end of the swing plate 173, the other end of the rotating arm 174 is swingably connected to the end seat 171; the swing driving member 175 is installed on the other end of the swing plate 173;

[0078] When the output end of the sleeve lifter 17 moves downward, the output end of the sleeve lifter 17 directly or indirectly drives the swing driving member 175 to descend, so that the swing plate 173 rotates to drive the rotating arm 174 to ascend, and the end seat 171 and the sleeve 11 move upward.

[0079] The end seat 171 is sleeved on the sleeve 11, and the sleeve 11 can move upward or rotate relative to the end seat 171; the sleeve 11 can also be limited to move downward, and when the limiting head 111 abuts against the end seat 171, the downward movement of the sleeve 11 is limited; the middle part of the swing plate 173 is swingably installed on the swing seat 172; one end of the swing plate 173 is swingably connected to the end seat 171 through the rotating arm 174, and the rotating arm 174 can have at least two degrees of freedom to meet the adaptive lifting of the end seat 171; the other end of the swing plate 173 is provided with the swing driving member 175; when the sleeve lifter 17 needs to drive the outer tube 12 or the inner tube 14 to move downward, the output end of the sleeve lifter 17 directly or indirectly drives the swing driving member 175 to descend, drives the swing plate 173 to rotate around the swing seat 172, drives the end seat 171 to ascend, drives the limiting head 111 of the sleeve 11 to ascend, and then drives the sleeve 11 and the plate limiting block 15 to ascend, thereby lifting the cable well cover plate 9. In this way, the present scheme can use a single lifting driver 3 of the landing unit 1 to complete the movement of the outer tube 12, the inner tube 14 and the sleeve 11. At the same time, for the outer tube 12 and / or the inner tube 14 connected through the connector 5, when the outer tube 12 and / or the inner tube 14 move downward by a certain distance, the output end of the sleeve lifter 17 can be directly or indirectly abutted on the swing driving member 175, so that the rotating seat 13 or the moving wheel 16 drives the sleeve 11 to ascend in the state of abutting against the ground, thereby lifting the cable well cover plate 9.

[0080] The output end of the sleeve lifter 17 directly or indirectly drives the swing driving member 175 to descend, which means that the output end of the sleeve lifter 17 can directly abut on the swing driving member 175, or can be in contact with the swing driving member 175 through other structures, such as the horizontal plate 51 or the vertical plate 52 of the connector 5 pressing downward on the swing driving member 175.

[0081] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application. Numerous modifications, changes, variations, substitutions, and equivalents will occur to those skilled in the art without departing from the spirit and scope of the present application as defined by the following claims and their equivalents.

Claims

1. A lifting device for a multi-functional cable manhole cover, characterized in that, The utility model relates to a cable well cover lifting device, including: Landing unit, landing base and lifting driver; The landing unit is installed on the landing base; The landing unit includes: pipe sleeve, outer tube, rotating seat, inner tube, plate limiting block, moving wheel and pipe sleeve lifting device; The pipe sleeve lifting device is connected to the landing base; the outer tube is installed on the pipe sleeve in a lifting manner; the lower end of the outer tube is provided with the rotating seat; the rotating seat is provided with a fixed part and a rotating part, and the rotating part is rotatably installed below the fixed part; the plate limiting block is installed on the outer side of the pipe sleeve and is used for limiting the plate opening of the cable well cover plate; the outer tube and the rotating seat are coaxially provided with a linearly communicated first inner cavity; the lower end of the inner tube is provided with the moving wheel; the inner tube is limited in the first inner cavity in a lifting manner, and drives the moving wheel to extend or retract in the first inner cavity; The lifting driver is installed on the landing base, and the output end of the lifting driver is detachably connected to the outer tube or the inner tube, which is used for driving the outer tube or the inner tube to move up and down; the output end of the pipe sleeve lifting device is connected to the pipe sleeve, which is used for driving the pipe sleeve to lift, and drives the plate limiting block to lift; The landing unit is arranged in pairs on the landing base and is respectively located at the left and right positions of the landing base; one of the landing units is provided with the rotating seat, and the other landing unit is provided with a separation seat; The separation seat is provided with a connecting part and a separation part, the connecting part is installed on the lower end of the outer tube, and the separation part is detachably connected to the connecting part; the separation seat and the outer tube connected thereto are provided with a coaxially communicated second inner cavity, and the inner tube is limited in the second inner cavity in a lifting manner, and drives the moving wheel to extend or retract in the second inner cavity; The pipe sleeve lifting device includes: an end seat, a swing seat, a swing plate, a rotating arm and a swing driving part; The end seat is movably sleeved on the pipe sleeve and located below the limiting head of the pipe sleeve; the swing seat is installed on the landing base, and the middle part of the swing plate is swingably connected to the swing seat; one end of the rotating arm is rotatably and adjustably connected to one end of the swing plate, and the other end of the rotating arm is rotatably and adjustably connected to the end seat; the swing driving part is installed on the other end of the swing plate; When the output end of the pipe sleeve lifting device moves downward, the output end of the pipe sleeve lifting device directly or indirectly drives the swing driving part to descend, so that the swing plate rotates to drive the rotating arm to ascend, and drives the end seat and the pipe sleeve to move upward.

2. A lifting device for a multi-functional cable cover plate according to claim 1, characterized in that The number of the lifting drivers corresponds to the landing units, and the output end of each lifting driver is correspondingly connected to the outer tube or the inner tube of one landing unit; When the connecting part is separated from the separation part, the output end of the lifting driver drives the inner tube to descend, so that the moving wheel moves below the connecting part.

3. A lifting device for a multi-functional cable cover plate according to claim 1, characterized in that The separation part is magnetically connected to the connecting part.

4. The lift device for a multi-functional cable manhole cover plate according to claim 1, wherein The pipe sleeve is rotatably and liftably limited on the landing base; after the plate limiting block extends into the plate opening, the plate limiting block rotates to a length direction parallel to the width direction of the plate opening, so that the plate limiting block is limited in the plate opening.

5. A lifting device for a multi-functional cable cover plate according to claim 4, characterized in that Also include; connected shell; The connected shell is provided with a shell cavity; the connected shell is integrally formed with the cable well cover plate, and the plate opening is located in the opening of the shell cavity; the shell cavity is sequentially provided with a communication part and a clamping part from top to bottom; the plate limiting block moves downward through the communication part and the clamping part, and is clamped in the clamping part after rotation adjustment, and the clamping part lifts the communication part upward.

6. A lifting device for a multi-functional cable cover plate according to claim 4, characterized in that The take-off base is provided with a connecting arm, the connecting arm is provided with a columnar arm opening, and the pipe sleeve is rotatable and liftable in the columnar arm opening.

7. A lift device for a multi-functional cable manhole cover plate as defined in claim 1, wherein Also include: Connector; The connector is provided with a transverse plate and a vertical plate, and the vertical plate is vertically connected to the transverse plate; the transverse plate and the vertical plate are respectively provided with a connecting clamp at different height positions, and the connecting clamp detachably clamps the outer tube or the inner tube; The output end of the lifting driver is connected to the connector for driving the connector to move up and down.

8. A lifting device for a multi-functional cable cover plate according to claim 7, characterized in that The take-off unit also includes a limiting plug; The upper end of the outer tube and / or the upper end of the inner tube is provided with a limiting plug hole; one end of the limiting plug is detachably inserted into the limiting plug hole horizontally.

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