Multifunctional lifting device for cable well cover plate

Abstract

A lifting device for a multifunctional cable well cover plate relates to the field of cranes and comprises a lifting unit, a lifting base frame and a lifting driver. The pipe sleeve is in lifting connection with the lifting base frame; the outer pipe is mounted on the pipe sleeve in a liftable manner; a rotating seat is mounted at the lower end of the outer pipe; the rotating part is rotatably mounted below the fixed part around the middle shaft; the plate limiting block is used for limiting a plate opening of the cable well cover plate; the outer pipe and the rotating seat are coaxially provided with a first inner cavity which is linearly communicated; moving wheels are mounted at the lower ends of the inner pipes; the inner pipe drives the moving wheel to extend out of or retract into the first inner cavity; the lifting driver is installed on the lifting base frame and used for driving the outer pipe or the inner pipe to move in a lifting mode. The output end of the pipe sleeve lifter is connected to the pipe sleeve and used for driving the pipe sleeve to ascend and descend and driving the plate limiting block to ascend and descend. According to the scheme, the lifting flexibility of the cable well cover plate can be improved, and the problem that the lifting efficiency is low due to the fact that an existing lifting device of the cable well cover plate cannot have the rotating function and the moving function at the same time is solved.

Description

Technical Field

[0001] The invention relates to the field of cranes, and in particular to a lifting and lowering device for a multifunctional cable well cover. Background Art

[0002] The existing cable well cover lifting and lowering devices are mainly through manual lifting or mechanical lifting. Manual lifting mainly involves inserting a support rod into the plate opening of the cable well cover, and lifting the cable well cover out by the lever principle. Generally, there may be a large number of cable well covers, which will lead to high labor intensity for workers. It can only be used to open the cable well cover, and it is difficult to close the cable well cover. Mechanical lifting mainly utilizes an electric hoist gantry to drive the cable well cover to open, but the electric hoist gantry is large in size and can generally only move in a straight line. The moving direction and angle of the cable well cover cannot be adjusted as needed, which results in a longer falling path of the cable well cover and reduced flexibility. Summary of the invention

[0003] The purpose of the present invention is to propose a multifunctional cable well cover lifting and lowering device, which has a rotating lifting function and a linear moving and transmitting function. The outer tube can be selected to rotate and open the cable well cover according to needs, and the moving wheels of the inner tube can be selected to move and transmit the cable well cover. This scheme can improve the lifting and lowering flexibility of the cable well cover.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A multifunctional cable well cover lifting and lowering device comprises: a lifting and lowering unit, a lifting and lowering base frame and a lifting and lowering drive;

[0006] The lifting and landing unit is installed on the lifting and landing base; the lifting and landing unit includes: a pipe sleeve, an outer pipe, a rotating seat, an inner pipe, a plate limit block, a moving wheel and a pipe sleeve lifter;

[0007] The pipe sleeve is connected to the lifting and lowering base frame in a lifting manner; the outer pipe can be installed on the pipe sleeve in a lifting manner; the swivel seat is installed at the lower end of the outer pipe; the swivel seat is provided with a fixed part and a rotating part, and the rotating part is rotatably installed below the fixed part around the central axis; the plate limit block is installed on the outer side of the pipe sleeve for limiting the plate opening of the cable well cover plate; the outer pipe and the swivel seat are coaxially provided with a first inner cavity in linear communication; the moving wheel is installed at the lower end of the inner pipe; the inner pipe can be lifted and limited in the first inner cavity, driving the moving wheel to extend or retract in the first inner cavity;

[0008] The lifting drive is installed on the lifting and lowering base frame, and the output end of the lifting drive is detachably connected to the outer tube or the inner tube, and is used to drive the outer tube or the inner tube to move up and down; the output end of the pipe sleeve lifter is connected to the pipe sleeve, and is used to drive the pipe sleeve to move up and down, thereby driving the plate limit block to move up and down.

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

[0010] The separation seat is provided with a connecting part and a separating part, wherein the connecting part is installed at the lower end of the outer tube, and the separating part is detachably connected to the connecting part; the separation seat and the outer tube connected thereto are provided with a coaxially connected second inner cavity, and the inner tube can be raised and lowered and limited in the second inner cavity, thereby driving the moving wheel to extend or retract in the second inner cavity.

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

[0012] When the connecting portion is separated from the separating portion, the output end of the lifting drive drives the inner tube to descend, so that the moving wheel moves to the bottom of the connecting portion.

[0013] Preferably, the separation portion is magnetically connected to the connection portion.

[0014] Preferably, the pipe sleeve is rotatably and liftably limited on the lifting and lowering base frame; after the plate limit block is extended into the plate opening, the plate limit block is rotated until the length direction is parallel to the width direction of the plate opening, so that the plate limit block is limited at the plate opening.

[0015] Optimally, it also includes: a one-piece shell;

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

[0017] Preferably, the lifting and lowering base frame is provided with a connecting arm, the connecting arm is provided with a columnar arm opening, and the pipe sleeve is rotatably and liftably limited at the columnar arm opening.

[0018] Optimally, it also includes: a connector;

[0019] 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 connecting clamps at different height positions, and the connecting clamps can detachably clamp the outer tube or the inner tube;

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

[0021] Optimally, the lifting and lowering unit further comprises: a limiting pin;

[0022] A limiting plug hole is provided at the upper end of the outer tube and / or the upper end of the inner tube; one end of the limiting plug pin can be detachably inserted horizontally into the limiting plug hole.

[0023] Optimally, the pipe sleeve lifter comprises: an end seat, a swing seat, a swing plate, a rotating arm and a swing driving member;

[0024] The end seat can be relatively movably sleeved on the pipe sleeve and is located below the limit head of the pipe sleeve; the swing seat is installed on the lifting and lowering base frame, 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 member is installed on the other end of the swing plate;

[0025] When the output end of the pipe sleeve lifter moves downward, the output end of the pipe sleeve lifter directly or indirectly drives the swing drive member to descend, so that the swing plate rotates to drive the rotating arm to rise, thereby driving the end seat and the pipe sleeve to move upward.

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

[0027] The present invention provides a lifting and lowering device for a multifunctional cable well cover, which has a rotating lifting function and a linear moving and transmitting function. The outer tube can be selected to rotate and open the cable well cover according to needs, or the moving wheels of the inner tube can be selected to move and transmit the cable well cover. The present invention can improve the lifting and lowering flexibility of the cable well cover, and solves the problem that the lifting and lowering device of the existing cable well cover cannot have both rotating and moving functions at the same time, resulting in low lifting and lowering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic cross-sectional structural diagram of one embodiment of a landing gear in a mobile landing mode;

[0029] Figure 2 is a schematic cross-sectional structural diagram of one embodiment of a landing gear in a rotating landing mode;

[0030] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0031] Figure 4 is a top view of one embodiment of the landing gear in a rotational landing mode;

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

[0033] Figure 6 It is a schematic cross-sectional structure diagram of one embodiment of a landing gear.

[0034] in:

[0035] Lifting and landing unit 1, lifting and landing base 2, lifting and lowering drive 3; conjoined shell 4; connector 5;

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

[0037] Limiting head 111; first inner cavity 121;

[0038] A fixed portion 131 and a rotating portion 132;

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

[0040] Connecting portion 181, separating portion 182; second inner cavity 183;

[0041] Connecting arm 21; columnar arm opening 22; connecting portion 41, clamping portion 42;

[0042] Horizontal plate 51, vertical plate 52; connecting fixture 53;

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

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, without distinction of order or importance. In the description of the present invention, unless otherwise specified, "multiple" means more than two.

[0046] like Figure 1-6 , a multifunctional cable well cover lifting and lowering device, comprising: a lifting and lowering unit 1, a lifting and lowering base frame 2 and a lifting and lowering drive 3;

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

[0048] The pipe sleeve 11 is connected to the lifting and lowering base 2 in a lifting manner; the outer pipe 12 is installed on the pipe sleeve 11 in a lifting manner; the swivel seat 13 is installed at the lower end of the outer pipe 12; the swivel seat 13 is provided with a fixed portion 131 and a rotating portion 132, and the rotating portion 132 is rotatably installed below the fixed portion 131 around the central axis; the plate limit block 15 is installed on the outer side of the pipe sleeve 11, and is used to limit the plate opening 90 of the cable well cover plate 9; the outer pipe 12 and the swivel seat 13 are coaxially provided with a first inner cavity 121 that is connected in a straight line; the moving wheel 16 is installed at the lower end of the inner pipe 14; the inner pipe 14 is limited in the first inner cavity 121 in a lifting manner, driving the moving wheel 16 to extend or retract in the first inner cavity 121;

[0049] The lifting drive 3 is installed on the lifting and lowering base 2, and the output end of the lifting drive 3 is detachably connected to the outer tube 12 or the inner tube 14, and is used to drive the outer tube 12 or the inner tube 14 to move up and down; the output end of the pipe sleeve lifter 17 is connected to the pipe sleeve 11, and is used to drive the pipe sleeve 11 to move up and down, thereby driving the plate limit block 15 to move up and down.

[0050] The present invention provides a multifunctional cable well cover lifting and lowering device, which has a rotating lifting function and a linear moving and transmitting function. The outer tube 12 can be selected to rotate and open the cable well cover 9 as needed, or the moving wheel 16 of the inner tube 14 can be selected to move and transmit the cable well cover 9. The present invention can improve the lifting and lowering flexibility of the cable well cover 9, and solves the problem that the existing cable well cover lifting and lowering device cannot have both the rotating and moving functions at the same time, resulting in low lifting and lowering efficiency.

[0051] Specifically, according to common sense, the cable well cover 9 is generally installed in the cable well opening, and a supporting step 91 is provided on the inner side of the cable well opening, and the supporting step 91 is used to support the cable well cover 9 upward; and the cable well cover 9 generally has a plate opening 90 for connecting with the lifting end of the lifting device; the lever principle can also be used to extend the rod into the plate opening 90 at the plate opening 90 to lift the cable well cover; the cable well cover 9 is mainly formed by one-piece metal plate and cement, and the plate opening 90 can be reserved at a position close to the supporting step 91 during molding; an inner tube 14 is provided in the outer tube 12 of the present scheme; the plate limit block 15 on the outside of the pipe sleeve 11 can be snapped into the plate opening 90, and the cable well cover 9 can be lifted by the plate limit block 15 by simply connecting the pipe sleeve 11 through the pipe sleeve lifter 17; the output end of the lifting drive 3 can be adjusted to be connected to the outer tube 12 or the inner tube 14 as needed, so as to drive 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 and lowering base 2; when the rotary lifting and lowering mode is selected, when the lifting driver 3 drives the outer tube 12 to move downward, the outer tube 12 is relatively lowered to the pipe sleeve 11, and the lower end of the outer tube 12 extends downward under the cable well cover plate 9, and the rotating seat 13 under the outer tube 12 abuts against the supporting step 91; at this time, the pipe sleeve lifter 17 can be called to drive the pipe sleeve 11 to rise, and the plate limit block 15 lifts the cable well cover plate 9 upward, and the cable well cover plate 9 is upwardly separated from the cable well opening, such as Figure 2 The rotating seat 13 is provided with a fixed portion 131 and a rotating portion 132, the rotating portion 132 is located relatively below the fixed portion 131, and the rotating portion 132 contacts the supporting step 91, thereby serving as the main supporting structure; at this time, the rotating seat 13 of one of the lifting and landing units 1 can be rotated around the central axis, and the lifting and landing base 2 can be controlled by manual adjustment or mechanical adjustment to rotate around the rotating seat 13, driving the cable well cover 9 to rotate around the rotating seat 13 until it is separated from the cable well opening, so that the cable well opening can be rotated 90-180°, such as Figure 4 Only need to reset the sleeve lifter 17, the cable well cover plate 9 can be placed beside the cable well opening, Figure 4On the other hand, when the moving lifting and lowering mode is selected, when the lifting driver 3 drives the inner tube 14 to move downward, the inner tube 14 and the moving wheel 16 at the lower end thereof extend downward below the first inner cavity 121, and the moving wheel 16 is located below the cable well cover 9 and contacts the supporting step 91. At this time, the pipe sleeve lifter 17 can be called to drive the pipe sleeve 11 to rise, and the plate limit block 15 lifts the cable well cover 9 upward, and the cable well cover 9 is upwardly separated from the cable well opening. At this time, the moving wheel 16 is equivalent to lifting the cable well cover 9 upward, and the cable well cover 9 is off the ground, as shown in FIG. Figure 1 At this time, the lifting and lowering base 2 can be controlled to move horizontally by manual adjustment or mechanical adjustment, and the cable well cover 9 can be driven to move horizontally close to the cable well opening, so that multiple cable well covers 9 can be delivered to the vicinity of the cable well opening in advance before sealing the well; it is also convenient for the lifting and lowering base 2 to move horizontally in the cable well opening, and multiple cable well covers 9 can be laid in sequence along the length direction of the cable well opening, such as Figure 5 ; Figure 5 The dotted line is the moving end position. In this way, the present solution can select the rotating lifting mode or the moving lifting mode as needed. This solves the problem that the lifting and lowering device of the existing cable well cover cannot have both the rotating and moving functions at the same time.

[0052] The lifting driver 3 is a well-known mechanism with a driving lifting function, such as a cylinder, a combination of 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 landing units 1 are arranged in pairs on the landing frame 2 and are respectively located at the left and right positions of the landing frame 2; one of the landing units 1 is provided with the rotating seat 13, and the other landing unit 1 is provided with a separation seat 18;

[0054] The separation seat 18 is provided with a connecting portion 181 and a separating portion 182, wherein the connecting portion 181 is installed at the lower end of the outer tube 12, and the separating portion 182 is detachably connected to the connecting portion 181; the separation seat 18 and the outer tube 12 connected thereto are provided with a coaxially connected second inner cavity 183, and the inner tube 14 can be raised and lowered and limited in the second inner cavity 183, driving the moving wheel 16 to extend or retract in the second inner cavity 183.

[0055] like Figure 6The landing units 1 of this scheme are arranged in pairs, and a rotating seat 13 is provided in one of the landing units 1, and a separating seat 18 is provided in the other landing unit 1; the rotating seat 13 can provide rotation support for the landing frame 2, that is, the landing frame 2 can rotate around the rotating seat 13 at one end, and the other end of the landing frame 2 and its separating seat 18 can rotate around the rotating seat 13 as the center; and the separating seat 18 has a detachable 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 on the inner side of the cable well opening, the inner side wall of the cable well opening blocks the lower part of the outer tube 12 during the rotation and landing, such as Figure 4 ; In this regard, the present scheme adopts a detachable separation seat 18, and the separation part 182 of the separation seat 18 can be detached from the connecting part 181. When the separation seat 18 rotates with the other end of the lifting base 2, the inner wall of the cable well opening drives the separation part 182 to separate from the connecting part 181, so that the separation part 182 remains in the cable well opening; at the same time, when the separation part 182 is separated, the bottom surface of the cable well cover 9 is infinitely close to the ground, and the cable well cover 9 is not easy to injure workers.

[0056] Optimally, the number of the lifting drives 3 corresponds to the lifting and 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 lifting and landing unit 1;

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

[0058] The present scheme preferably uses a plurality of lifting drives 3, which respectively correspond to a lifting and landing unit 1, for driving and moving the outer tube 12 or the inner tube 14 of a lifting and landing unit 1; and when the rotary lifting and landing mode is selected, one of the lifting drives 3 drives the outer tube 12 and its rotating seat 13 down to abut against the support step 91 to serve as a rotating fulcrum; before the cable well cover 9 is separated from the cable well opening, another lifting drive 3 connects the inner tube 14 and maintains the initial state; when the cable well cover 9 is separated from the cable well opening, and the inner wall of the cable well opening drives the connecting part 181 to separate from the separating part 182, the cable well cover 9 is infinitely close to the ground in the area of ​​the separating seat 18, but still requires manual support; in this regard, in the optimal embodiment, the lifting drive 3 located at the corresponding separating seat 18 can drive the inner tube 14 of the lifting and landing unit 1 to move downward, and the moving wheel 16 of the inner tube 14 can move to the bottom of the connecting part 181, thereby contacting the ground.

[0059] Optimally, the separation portion 182 is magnetically connected to the connection portion 181 .

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

[0061] Optimally, the pipe sleeve 11 can be rotatably and liftably limited to the lifting and lowering base frame 2; after the plate limit block 15 extends into the plate opening 90, the plate limit block 15 is rotated to a length direction parallel to the width direction of the plate opening 90, so that the plate limit block 15 is limited to the plate opening 90.

[0062] The pipe sleeve 11 can be relatively rotated and relatively lifted and lowered to be limited to the lifting and lowering base 2, which can facilitate the adaptive lifting and lowering adjustment of the outer tube 12 and the swivel seat 13, ensuring that when there is a height difference between the lifting and lowering base 2 and the plate limit block 15 (or the moving wheel 16), the lifting and lowering base 2 can still contact the ground, and the swivel seat 13 or the moving wheel 16 can still contact the support step 91.

[0063] like Figure 4 , the plate opening 90 has a length direction X and a width direction Y, and the plate limit block 15 also has a length direction and a width direction; when the plate limit block 15 enters the plate opening 90, the inner diameter of the plate opening 90 is greater than the outer diameter of the plate limit block 15; therefore, the plate limit block 15 is roughly in the length direction toward the length direction of the plate opening 90, and can be extended from top to bottom into the plate opening 90, and the pipe sleeve 11 can be raised and lowered to provide this mobility; when the plate limit block 15 moves down to the bottom of the plate opening 90, the pipe sleeve 11 can continue to be rotated to drive the plate limit block 15 to rotate, so that the plate limit block 15 rotates to the length direction parallel to the width direction of the plate opening 90, and the plate limit block 15 is limited to the plate opening 90; at this time, you only need to start the pipe sleeve lifter 17 to drive the outer tube 12 or the inner tube 14 to rise and fall, and the cable well cover plate 9 can be lifted.

[0064] It can be optimized to further include: a conjoined shell 4;

[0065] The one-piece shell 4 is provided with a shell cavity; the one-piece shell 4 is integrally formed and combined with the cable well cover plate 9, and the plate opening 90 is located in the middle of the opening of the shell cavity; the shell cavity is provided with a connecting portion 41 and a clamping portion 42 from top to bottom; the plate limit block 15 moves downward through the connecting portion 41 and the clamping portion 42, and is clamped in the clamping portion 42 after rotation adjustment, and the clamping portion 42 lifts the connecting portion 41 upward.

[0066] This solution adds a conjoined shell 4, and the conjoined shell 4 is integrally formed on the cable well cover plate 9. Specifically, the conjoined 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: a connecting part 41 and a clamping part 42; when installing the plate limit block 15, the plate limit block 15 passes through the plate opening 90, the connecting part 41 and the clamping part 42, and then the adjusting sleeve 11 is rotated, and the sleeve 11 drives the plate limit block 15 to rotate on the clamping part 42, and the plate limit block 15 rotates to the length direction parallel to the width direction of the plate opening 90, so as to be clamped on the clamping part 42; therefore, in the rotating lifting and lowering mode or the moving lifting and lowering mode, the clamping part 42 can lift the connecting part 41 upward.

[0067] Optimally, the lifting and lowering base frame 2 is provided with a connecting arm 21 , and the connecting arm 21 is provided with a columnar arm opening 22 , and the pipe sleeve 11 is rotatably and liftably limited at the columnar arm opening 22 .

[0068] The connecting arm 21 is provided with a columnar arm opening 22, and the pipe sleeve 11 is provided at the columnar arm opening 22; the pipe sleeve 11 can rotate along the central axis of the columnar arm opening 22, and can be lifted and lowered along the length direction of the columnar arm opening 22; thus, the position of the pipe sleeve 11 can be conveniently and adaptively adjusted. The position of the pipe sleeve 11 at the columnar arm opening 22 can be limited by a known method, for example, a block is provided at the end of the pipe sleeve 11 to prevent the pipe sleeve 11 from being separated from the columnar arm opening 22.

[0069] It can be optimized to further include: a connector 5;

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

[0071] The output end of the lifting driver 3 is connected to the connector 5 for driving the connector 5 to move up and down.

[0072] In this solution, the connector 5 can be selectively connected to the outer tube 12 or the inner tube 14 as needed; specifically, the connector 5 is provided with a transverse plate 51 extending transversely and a vertical plate 52 extending vertically; the transverse plate 51 and the vertical plate 52 can be connected in a T-shaped state or an L-shaped state, etc.; in this way, the connector 5 staggers the two connection clamps 53 in spatial distribution; the connection clamp 53 at one position can clamp the outer tube 12 as needed, and the connection clamp 53 at another position can clamp the inner tube 14 as needed. In this way, when the connection clamp 53 of the connector 5 clamps the outer tube 12 (or clamps the outer tube 12 and the inner tube 14 at the same time), it is equivalent to the output end of the lifting driver 3 being indirectly connected to the outer tube 12, and the outer tube 12 can be driven to move up and down; when the connection clamp 53 of the 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, and the inner tube 14 can be driven to move up and down. The connecting clamp 53 is a well-known mechanism with a clamping function, and it only needs to connect the inner tube 14 or the outer tube 12 .

[0073] The pipe sleeve lifter 17 of this solution is replaced by a known mechanism with a driving lifting function, such as a cylinder, a combination of a motor and a screw rod, an electric hoist, etc., as long as the pipe sleeve 11 can be lifted. In the best embodiment, this solution uses a seesaw-type driving lifting structure; the lifting unit 1 also includes: a limit pin 19;

[0074] A limit plug hole is provided at the upper end of the outer tube 12 and / or the upper end of the inner tube 14; one end of the limit plug pin 19 can be detachably inserted horizontally into the limit plug hole.

[0075] The outer tube 12 and the inner tube 14 of the present scheme may be provided with a limit plug hole at the upper end. When one end of the limit plug pin 19 is horizontally installed in the limit plug hole, the other end of the limit plug pin 19 is far away from the limit plug hole, so that the limit plug pin 19 extends horizontally between the outer tube 12 and the pipe sleeve 11. In the absence of the connector 5 clamping the outer tube 12, the limit plug pin 19 horizontally spans between the outer tube 12 and the pipe sleeve 11, which can limit the outer tube 12 from moving downward; similarly, another limit plug pin 19 horizontally spans between the outer tube 12 and the inner tube 14. In the absence of the connector 5 clamping the outer tube 12, the limit plug pin 19 horizontally spans between the outer tube 12 and the inner tube 14, which can limit the inner tube 14 from moving downward.

[0076] Optimally, the sleeve lifter 17 comprises: an end seat 171, a swing seat 172, a swing plate 173, a rotating arm 174 and a swing driving member 175;

[0077] The end seat 171 can be relatively movably sleeved on the pipe sleeve 11 and is located below the limit head 111 of the pipe sleeve 11; the swing seat 172 is installed on the lifting and lowering base 2, and the middle part of the swing plate 173 is swingably connected to the swing seat 172; one end of the rotating arm 174 is rotatably and adjustably connected to one end of the swing plate 173, and the other end of the rotating arm 174 is rotatably and adjustably 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 tube sleeve lifter 17 moves downward, the output end of the tube 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 rise, thereby driving the end seat 171 and the tube sleeve 11 to move upward.

[0079] The end seat 171 is sleeved on the pipe sleeve 11, and the pipe sleeve 11 can move relatively to the end seat 171, that is, the pipe sleeve 11 can move upward or rotate relative to the end seat 171; the pipe sleeve 11 can also move downward with a limited position, and when the limit head 111 abuts against the end seat 171, the pipe sleeve 11 is limited to move downward; the middle part of the swing plate 173 is rotatably mounted on the swing seat 172; one end of the swing plate 173 is rotatably connected to the end seat 171 through a rotating arm 174, and the rotating arm 174 can be provided with at least two degrees of freedom to meet the end seat 171 is adaptively lifted; the other end of the swing plate 173 is installed with a swing driving member 175; when the pipe sleeve lifter 17 needs to drive the outer pipe 12 or the inner pipe 14 to move downward, the output end of the pipe sleeve lifter 17 directly or indirectly drives the swing driving member 175 to descend, driving the swing plate 173 to rotate around the swing seat 172, so that the end seat 171 rises, and the end seat 171 drives the limit head 111 of the pipe sleeve 11 to rise, thereby driving the pipe sleeve 11 and its plate limit block 15 to rise, thereby lifting the cable well cover plate 9. In this way, this solution can use a single lifting driver 3 in the lifting and lowering unit 1 to complete the movement of the outer pipe 12, the inner pipe 14 and the pipe sleeve 11. At the same time, for the outer tube 12 and / or the inner tube 14 connected by the connector 5, the outer tube 12 and / or the inner tube 14 move downward a certain distance. When the swivel seat 13 or the moving wheel 16 is grounded, the output end of the pipe sleeve lifter 17 can be designed to directly or indirectly abut against the swing drive member 175, so that the swivel seat 13 or the moving wheel 16 drives the pipe sleeve 11 to rise when it is grounded to support the cable well cover 9.

[0080] Among them, the output end of the tube sleeve lifter 17 directly or indirectly drives the swing driving member 175 to descend, which means that the output end of the tube sleeve lifter 17 can directly abut against the swing driving member 175, or can contact the swing driving member 175 through other structures, for example, the horizontal plate 51 or the vertical plate 52 of the connector 5 presses downward on the swing driving member 175.

[0081] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lifting and lowering device for a multifunctional cable well cover, characterized in that: include: Landing unit, landing frame and lifting drive; The lifting and landing unit is installed on the lifting and landing base; The lifting and lowering unit comprises: a pipe sleeve, an outer pipe, a rotating seat, an inner pipe, a plate limit block, a moving wheel and a pipe sleeve lifter; The pipe sleeve is connected to the lifting and lowering base frame in a lifting manner; the outer pipe can be installed on the pipe sleeve in a lifting manner; the swivel seat is installed at the lower end of the outer pipe; the swivel seat is provided with a fixed part and a rotating part, and the rotating part is rotatably installed below the fixed part around the central axis; the plate limit block is installed on the outer side of the pipe sleeve for limiting the plate opening of the cable well cover plate; the outer pipe and the swivel seat are coaxially provided with a first inner cavity in linear communication; the moving wheel is installed at the lower end of the inner pipe; the inner pipe can be lifted and limited in the first inner cavity, driving the moving wheel to extend or retract in the first inner cavity; The lifting drive is installed on the lifting and lowering base frame, and the output end of the lifting drive is detachably connected to the outer tube or the inner tube, and is used to drive the outer tube or the inner tube to move up and down; the output end of the pipe sleeve lifter is connected to the pipe sleeve, and is used to drive the pipe sleeve to move up and down, thereby driving the plate limit block to move up and down.

2. A lifting and lowering device for a multifunctional cable well cover according to claim 1, characterized in that: The lifting and landing units are arranged in pairs on the lifting and landing frame, and are respectively located at the left and right positions of the lifting and landing frame; one of the lifting and landing units is provided with the rotating seat, and the other lifting and landing unit is provided with a separation seat; The separation seat is provided with a connecting part and a separating part, wherein the connecting part is installed at the lower end of the outer tube, and the separating part is detachably connected to the connecting part; the separation seat and the outer tube connected thereto are provided with a coaxially connected second inner cavity, and the inner tube can be raised and lowered and limited in the second inner cavity, thereby driving the moving wheel to extend or retract in the second inner cavity.

3. The lifting and lowering device of a multifunctional cable well cover according to claim 2 is characterized in that: The number of the lifting drives corresponds to the lifting and landing units, and the output end of each lifting drive is correspondingly connected to the outer tube or the inner tube of one of the lifting and landing units; When the connecting portion is separated from the separating portion, the output end of the lifting drive drives the inner tube to descend, so that the moving wheel moves to the bottom of the connecting portion.

4. The lifting and lowering device of a multifunctional cable well cover according to claim 2 is characterized in that: The separation portion is magnetically connected to the connection portion.

5. The lifting and lowering device of a multifunctional cable well cover according to claim 1 is characterized in that: The pipe sleeve is rotatably and liftably limited at the lifting and lowering base frame; after the plate limit block is extended into the plate opening, the plate limit block is rotated until the length direction is parallel to the width direction of the plate opening, so that the plate limit block is limited at the plate opening.

6. The lifting and lowering device of a multifunctional cable well cover according to claim 5 is characterized in that: Also includes; one-piece shell; The one-piece shell is provided with a shell cavity; the one-piece shell is integrally formed and combined with the cable well cover plate, and the plate opening is located in the middle of the opening of the shell cavity; the shell cavity is provided with a connecting part and a clamping part from top to bottom in sequence; the plate limit block moves downward through the connecting part and the clamping part, and is clamped in the clamping part after rotation and adjustment, and the clamping part lifts the connecting part upward.

7. The lifting and lowering device of a multifunctional cable well cover according to claim 5 is characterized in that: The lifting and lowering base frame is provided with a connecting arm, and the connecting arm is provided with a columnar arm opening, and the pipe sleeve is rotatably and liftably limited at the columnar arm opening.

8. The lifting and lowering device of a multifunctional cable well cover according to claim 1 is characterized in that: Also includes: Connectors; 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 connecting clamps at different height positions, and the connecting clamps can detachably clamp the outer tube or the inner tube; The output end of the lifting driver is connected to the connector and is used to drive the connector to move up and down.

9. The lifting and lowering device of a multifunctional cable well cover according to claim 8, characterized in that: The lifting and lowering unit further comprises: a limiting plug pin; A limiting plug hole is provided at the upper end of the outer tube and / or the upper end of the inner tube; one end of the limiting plug pin can be detachably inserted horizontally into the limiting plug hole.

10. A lifting and lowering device for a multifunctional cable well cover according to any one of claims 1 to 9, characterized in that: The pipe sleeve lifter comprises: an end seat, a swing seat, a swing plate, a rotating arm and a swing driving member; The end seat can be relatively movably sleeved on the pipe sleeve and is located below the limit head of the pipe sleeve; the swing seat is installed on the lifting and lowering base frame, 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 member is installed on the other end of the swing plate; When the output end of the pipe sleeve lifter moves downward, the output end of the pipe sleeve lifter directly or indirectly drives the swing drive member to descend, so that the swing plate rotates to drive the rotating arm to rise, thereby driving the end seat and the pipe sleeve to move upward.

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