Portable kerb carrying device

Abstract

The invention relates to the field of hydropower station plant maintenance construction, in particular to a portable curb carrying device which comprises a support, the support comprises two stand columns arranged at intervals, a transverse rod is arranged below the stand columns, and walking wheels are arranged at the two ends of the transverse rod; a sleeve is arranged on the upper portion of the support, the transverse rod is perpendicular to the sleeve, a long rod is connected into the sleeve in a sleeved mode through a bolt, a lifting clamping device is arranged at one end of the long rod, a handle is arranged at the other end of the long rod, the lifting clamping device comprises a fixing sleeve connected to the end of the long rod in a sleeved mode, and a telescopic mechanism is fixedly connected to the lower end of the fixing sleeve. A two-way lead screw is transversely arranged below the telescopic mechanism, and a clamping machine tool is arranged at the lower end of the two-way lead screw. The carrying device is reasonable in structural design, high in automation degree, high in safety coefficient, capable of saving labor cost and high in practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance construction of hydropower station plants, and particularly relates to a portable curbstone handling device. Background Art

[0002] With the long construction and operation time of hydropower stations, the current has entered the post-era of hydropower station construction. Many hydraulic structures, roads in the plant area and other equipment and facilities in the hydropower station plant area need to be repaired and maintained due to aging. When replacing the curbstone in the plant area, for narrow sections of the road, the curbstone cannot be directly unloaded in place. Currently, the handling of curbstones is mostly carried out manually or by a simple trolley. Manual handling requires at least two people and has low efficiency. Although the simple trolley improves the efficiency, when unloading the curbstone from the simple trolley, one person is still needed to hold the trolley and two people are needed to carry the curbstone. Moreover, the simple trolley usually has only one or two wheels and is prone to tilting, causing personal injury or damage to the curbstone, and the safety factor is low.

[0003] Therefore, the present invention provides a portable curbstone handling device. The structure of the handling device is reasonably designed, and at the same time, it has a high degree of automation, a high safety factor, saves labor costs, and is highly practical. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and a portable curbstone handling device is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme: A portable curbstone handling device, including a trolley, a long rod is provided on the trolley. One end of the long rod is provided with a lifting and clamping device, and the other end is provided with a handle. The lifting and clamping device includes a fixed sleeve sleeved on the end of the long rod. A telescopic mechanism is fixedly connected to the lower end of the fixed sleeve. A bidirectional lead screw is horizontally arranged below the telescopic mechanism. The bidirectional lead screw is driven by a motor I arranged at the extended end of the telescopic mechanism. A clamping tool is arranged at the lower end of the bidirectional lead screw.

[0006] Preferably, the clamping tool includes an X-shaped moving arm. The middle intersection of the X-shaped moving arm is pin-connected. The lower ends of the X-shaped moving arm are symmetrically and fixedly connected with inwardly inclined clamping arms. The end of the clamping arm is pin-connected with a clamping block, and an anti-slip layer is arranged on the clamping block.

[0007] Preferably, an elastic member is arranged between the clamping block and the X-shaped moving arm. The elastic member is a compression spring.

[0008] Preferably, a hollow groove is arranged at the end of the clamping arm. A pin-connected block matching the hollow groove is arranged on the back of the clamping block. The clamping arm and the clamping block are connected by a pin shaft; the elastic member connects the X-shaped moving arm and the pin-connected block.

[0009] Preferably, an installation plate is provided at the lower end of the clamping arm. A second motor is fixed on the installation plate. The output shaft of the second motor is connected with a support cylinder rotatably installed on the installation plate through a spring clutch. A clamping plate is fixed on the support cylinder. Rotating shafts are provided on both sides of the second motor on the installation plate. The two rotating shafts are connected with the output shaft of the second motor through chain drive. An expansion rod is axially slidably installed in the two rotating shafts. The expansion rod is in threaded cooperation with the installation plate. The clamping plate is provided with insertion holes for cooperation with the expansion rod.

[0010] Preferably, the clamping plate is provided with an anti-slip surface.

[0011] Compared with the prior art, the present invention provides a portable curbstone handling device, which has the following beneficial effects: 1. The present invention discloses a portable curbstone handling device. The handling device has a novel structure and reasonable design. The four-wheel walking mechanism is adopted to increase the safety factor. The lifting and clamping mechanism has both lifting and clamping functions at the same time. Clamping, handling and unloading are convenient, reducing labor costs and having strong practicability.

[0012] 2. The present invention provides a rotatable clamping plate on the clamping arm. Through the rotation setting of the clamping plate, the transformation of the curbstone from a horizontal state to a vertical state can be realized, greatly improving the use flexibility.

[0013] 3. The present invention is also provided with a spring expansion rod. The spring expansion rod gradually extends and inserts into the insertion hole on the clamping plate when the clamping plate rotates clockwise, providing two-point auxiliary support for the horizontal state of the clamping plate, making the clamping of the clamping plate more stable and reducing the torque load of the second motor; the spring expansion rod contracts first before the clamping plate rotates counterclockwise, and then the clamping plate rotates to avoid movement interference.

[0014] 4. The present invention realizes the synchronization and delay of the forward and reverse rotation of the clamping plate on the clamping arm through a mechanical structure, as well as the telescopic limit of the spring expansion rod, so that no external redundant electronic equipment is required and no additional power source is needed, and it can be used continuously.

[0015] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description; and to some extent, based on the study of the following text, it will be obvious to those skilled in the art; or, it can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the handling device of the present invention.

[0017] Figure 2 It is a front view structural schematic diagram of the lifting and clamping device of the present invention.

[0018] Figure 3 Right view structural schematic diagram of the bracket of the present invention.

[0019] Figure 4 Right view structural schematic diagram of the lifting and clamping device of the present invention.

[0020] Figure 5 Top view of the connection structure between the clamping block and the clamping arm of the present invention.

[0021] Figure 6 Planar schematic diagram of the assembly structure on the clamping arm in Embodiment 2 of the present invention.

[0022] Figure 7 Three-dimensional schematic diagram of the assembly structure on the mounting plate of the present invention.

[0023] Figure 8 For the present invention Figure 7 Front view schematic diagram.

[0024] Figure 9 For the present invention Figure 8 Cross-sectional schematic diagram at A-A.

[0025] Figure 10 Internal cross-sectional schematic diagram of the elastic telescopic rod in the hollow tube of the present invention.

[0026] Figure 11 Schematic diagram of the positional relationship between the swing rod, the ejector rod, the round pin and the grooved pulley when the clamping plate is horizontal in the present invention.

[0027] Figure 12 For the present invention Figure 7 Explosion schematic diagram.

[0028] Figure 13 Structural schematic diagram of the grooved pulley of the present invention.

[0029] In the figure: 1 - bracket, 2 - sleeve, 3 - column, 4 - cross bar, 5 - strengthening bar, 6 - strengthening cross column, 7 - traveling wheel, 8 - braking device, 9 - long bar, 10 - lifting and clamping device, 11 - handle, 12 - fixed sleeve, 13 - telescopic mechanism, 14 - bidirectional lead screw, 15 - clamping tool, 16 - telescopic rod, 17 - telescopic cylinder, 18 - lead screw nut, 19 - X-shaped moving arm, 20 - clamping arm, 21 - clamping block, 22 - anti-slip layer, 23 - elastic member, 24 - hollow groove, 25 - pin joint block, 26 - mounting plate, 27 - motor two, 28 - driving sprocket, 29 - driven sprocket, 30 - hollow tube, 31 - extension arm, 32 - round pin, 33 - grooved pulley, 34 - meshing groove, 35 - mounting frame, 36 - support cylinder, 37 - swing rod, 38 - ejector rod, 39 - outer circular groove, 40 - stud, 41 - spring telescopic rod, 42 - clamping plate, 43 - jack, 44 - anti-slip surface, 45 - rotating shaft; 46, spring clutch. Detailed implementation manners

[0030] The following will combine the accompanying drawings in the embodiments of the present invention Figure 1-13 to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Embodiment 1. To solve the problems existing in the prior art, this embodiment provides a portable curbstone handling device. The portable curbstone handling device is as Figure 1-5 shown and includes a movable cart. The cart includes a bracket 1. The bracket 1 includes two upright columns 3 arranged at intervals. A horizontal cross bar 4 is arranged below the upright columns 3. Reinforcing bars 5 are arranged between the upright columns 3 and the sleeve 2 and between the upright columns 3 and the cross bar 4. A reinforcing cross column 6 is arranged between the two upright columns 3 to improve the overall structural strength of the bracket 1. Walking wheels 7 are arranged at both ends of the cross bar 4; a braking device 8 is arranged on the walking wheels 7. The walking wheels 7 facilitate the movement of the bracket 1, and the braking device 8 can prevent uncontrollable movement of the bracket 1 when it stops moving, resulting in accidents.

[0032] A sleeve 2 is arranged on the upper part of the mounting bracket 35. The cross bar 4 is perpendicular to the sleeve 2. A long rod 9 is sleeved in the sleeve 2 through bolts. A lifting and clamping device 10 is arranged at one end of the long rod 9, and a handle 11 is arranged at the other end. The handle 11 can facilitate the movement of the handling device.

[0033] The lifting and clamping device 10 includes a fixed sleeve 12 sleeved at the end of the long rod 9. The fixed sleeve 12 is connected to the long rod 9 through bolts. Bolt connection can not only make the connection firm but also facilitate disassembly. A telescopic mechanism 13 is fixedly connected to the lower end of the fixed sleeve 12. A bidirectional lead screw 14 is arranged horizontally below the telescopic mechanism 13. A clamping tool 15 is arranged at the lower end of the bidirectional lead screw 14.

[0034] The telescopic mechanism 13 includes a telescopic rod 16 and a telescopic cylinder 17. The telescopic rods 16 are symmetrically arranged on both sides below the fixed sleeve 12. A connecting part is arranged at the lower end of the telescopic rod 16, and a bearing is arranged on the connecting part. The two ends of the bidirectional lead screw 14 are connected through the bearing. A motor 1 is fixedly installed on the side wall of the connecting part of one of the telescopic rods 16. The bidirectional lead screw 14 can rotate forward and backward driven by the motor 1. When the bidirectional lead screw 14 rotates, the telescopic rod 16 does not rotate accordingly, so that the telescopic rod 16 is connected to the bidirectional lead screw 14. When the telescopic rod 16 expands and contracts, the distance between the bidirectional lead screw 14 and the fixed sleeve 12 can be adjusted.

[0035] The telescopic cylinder 17 is arranged in the middle below the fixed sleeve 12. The lower end of the telescopic cylinder 17 is connected to the middle of the bidirectional lead screw 14 through a bearing. The telescopic cylinder 17 serves as a power source for telescopic movement. When the telescopic cylinder 17 expands and contracts, it can drive the telescopic rod 16 to perform telescopic movement, and simultaneously drive the bidirectional lead screw 14 to move up and down, playing a role in lifting and adjusting.

[0036] The threads on the bidirectional lead screw 14 are located between the telescopic rod 16 and the telescopic cylinder 17, and the thread directions on both sides are opposite; matching lead screw nuts 18 are symmetrically arranged on both sides of the threads. The lead screw nuts 18 are hinged to the clamping tool 15. After the motor of the bidirectional lead screw 14 starts, it drives the bidirectional lead screw 14 to rotate, so that the lead screw nuts 18 move towards each other on the bidirectional lead screw 14.

[0037] On the opposite sides of the extending ends of the two telescopic rods 16, a guide rod 26 is fixedly connected in common. The middle of the guide rod 26 is C-shaped to avoid the telescopic cylinder 17. Hanging ears are provided at the upper ends of both lead screw nuts 18, and through holes are provided on the hanging ears. The guide rod 26 passes through the through holes, so that the two lead screw nuts 18 are in sliding fit relative to the telescopic rod 16, thereby restricting the two lead screw nuts 18 to prevent the lead screw nuts 18 from rotating synchronously with the rotation of the bidirectional lead screw 14.

[0038] The clamping tool 15 includes an X-shaped moving arm 19 hinged to the lead screw nut 18. The middle of the X-shaped moving arm 19 is pin-connected. The lower ends of the X-shaped moving arm 19 are symmetrically and fixedly connected with inwardly inclined clamping arms 20. The movement of the lead screw nut 18 can drive the X-shaped moving arm 19 to expand and contract left and right, thereby adjusting the height of the X-shaped moving arm 19 and the clamping arm 20.

[0039] Clamping blocks 21 are arranged at the ends of the clamping arms 20. Anti-slip layers 22 are arranged on the clamping blocks 21 to prevent the curbstone from slipping and ensure that the clamping blocks 21 can clamp the curbstone. An elastic member 23 is arranged between the clamping blocks 21 and the X-shaped moving arm 19, and the elastic member 23 is a compression spring. Hooks are provided on the inner side of one end of the X-shaped moving arm 19 close to the clamping arm 21 and on the side of the clamping block 21. Both ends of the compression spring are respectively connected to the two hooks. By pulling the clamping block 21 through the compression spring, the clamping arm 20 can always be in an inwardly inclined and clamped state. A hollow groove 24 is arranged at the end of the clamping arm 20, and a pin-connected block 25 matching the hollow groove 24 is arranged on the back of the clamping block 21. The clamping arm 20 and the clamping block 21 are connected by a pin shaft; the elastic member 23 connects the X-shaped moving arm 19 and the pin-connected block 25, so that the clamping block 21 clamps the curbstone, facilitating the handling of the curbstone.

[0040] When the lead screw nut 18 moves inwards, it drives the upper end of the X-shaped moving arm 19 to move inwards, thereby driving the clamping arm 20 to move inwards to clamp the curbstone, facilitating the handling of the curbstone. When the lead screw nut 18 moves outwards, it drives the upper end of the X-shaped moving arm 19 to move outwards, thereby driving the clamping arm 20 to move outwards to release the curbstone, facilitating the unloading of the curbstone.

[0041] Since the traveling wheels are equipped with a braking device 8 and there are 4 traveling wheels, it is relatively stable. The telescopic mechanism 13 can drive the lifting, facilitating the handling of curbstones in potholes, reducing labor costs, improving handling efficiency, and having strong practicability.

[0042] Embodiment 2, in a further embodiment of the present solution, in Embodiment 1, the curbstone can only be lifted vertically and moved horizontally, and cannot be tilted or placed vertically, with poor functional flexibility. Therefore, in the present solution, the clamping arm is further improved: Refer to the attached Figure 6 As shown, the clamping block at the lower end of the clamping arm is replaced with a mounting plate 26, and the mounting plate 26 is fixedly connected to the clamping arm.

[0043] A second motor 27 is fixedly mounted on the mounting plate 26 by bolts. The mounting plate 26 is provided with a U-shaped mounting bracket 35. The mounting bracket 35 is buckled on the mounting plate 26 and fixed together by welding or screws. The two cantilever parts of the mounting bracket 35 are located on both sides of the second motor 27. The end face of the mounting bracket 35 is provided with a mounting hole, and a support cylinder 36 is rotatably mounted in the mounting hole through a heavy-duty rotary shaft 45. Both ends of the support cylinder 36 penetrate the mounting hole. The support cylinder 36 is connected to the output shaft of the second motor 27 through a spring clutch 46 (the driving disk of the spring clutch 46 is fixedly connected to the output shaft of the second motor 27, the driven disk is fixedly connected to the support cylinder 36, one end of a plurality of high-strength springs is fixedly connected to the driving disk, the other end is fixedly connected to the driven disk, and the distribution of the plurality of high-strength springs is inclined in the clockwise direction and not arranged radially along the driving disk. Thus, when rotating clockwise, the high-strength springs immediately contract to transmit power to the support cylinder 36; when rotating counterclockwise, the high-strength springs extend with a delay). A clamping plate 42 that rotates synchronously is mounted at the end of the support cylinder 36 away from the second motor 27 through a fastener, and the clamping plate 42 serves as a clamping member for the curbstone.

[0044] On both sides of the second motor 27 on the mounting plate 26, rotating shafts 45 are rotatably mounted. The two rotating shafts 45 are connected to the output shaft of the second motor 27 through a chain drive. That is, the driving sprocket 28 of the chain drive is fixed on the output shaft of the second motor 27 and is located on the side of the mounting frame 35 away from the clamping plate 42; the two driven sprockets 29 of the chain drive are respectively fixed on the two rotating shafts 45; the driving sprocket 28 is connected to the two driven sprockets 29 through a chain. And the two cantilevers of the mounting frame 35 are within the range of the chain and do not interfere. The diameter of the driven sprocket 29 is smaller than the diameter of the driving sprocket 28, forming an amplification mechanism, so that the rotation angle of the driven sprocket 29 is greater than the rotation angle of the driving sprocket 28.

[0045] The two rotating shafts 45 are of a cylindrical structure. Axially slidably mounted (key connection or non-circular surface fitting) inside the rotating shaft 45 is a spring telescopic rod 41 (such as the cooperation of a rectangular hole and a rectangular shaft. The spring telescopic rod 41 is a combination of hollow rectangular shafts. The rectangular shafts are slidably fitted with each other and internally provided with a telescopic spring to control the telescopic reset of the telescopic rod through the telescopic spring). One end of the spring telescopic rod 41 away from the grooved wheel 33 is integrally provided with a stud 40. A threaded hole matching the stud 40 is provided on the mounting plate 26, and a jack 43 matching the ends of the two spring telescopic rods 41 is provided on the clamping plate 42. The clamping plate 42 is provided with a jack 43 matching the ends of the two spring telescopic rods 41. The chamfer of the jack 43 and the end of the protruding end of the spring telescopic rod 41 are spherical for easy insertion.

[0046] According to the above technical solution: During use, push the trolley to adjust the positional relationship between the clamping part and the curb. After adjustment, the spring telescopic rod 41 extends, and the clamping structure descends, so that the two clamping plates 42 are located on both sides of the curb. Then, drive the bidirectional lead screw 14 to rotate through the first motor, thereby driving the two lead screw nuts 18 to approach each other, so that the X-shaped moving arm 19 is folded, and thus the clamping arms 20 tend to approach. When the two clamping arms 20 approach, a clamping action is formed, so that the curb is clamped by the two clamping plates 42. At this time, the telescopic cylinder 17 contracts, and then the curb is lifted, so as to perform the operation of moving the curb.

[0047] When the curb needs to be tilted or placed and moved vertically, the clamping plate 42 remains in the clamping state, and the second motor 27 starts counterclockwise. The second motor 27 first drives the two rotating shafts 45 to rotate synchronously counterclockwise through chain drive. The two rotating shafts 45 rotate counterclockwise, thereby driving the spring telescopic rod 41 to rotate counterclockwise. Since the stud 40 is in threaded fit with the threaded hole, when the spring telescopic rod 41 rotates counterclockwise, under the action of the thread, the spring telescopic rod 41 gradually contracts into the rotating shaft 45, and then disengages from the jack 43. At this time, the clamping plate 42 loses its braking force. And since the output shaft of the second motor 27 is connected to the support cylinder 36 through a spring clutch 46, when the output shaft of the second motor 27 rotates counterclockwise, a certain degree of torque output delay can be formed. After the spring telescopic rod 41 disengages from the jack 43, the output shaft of the second motor 27 drives the support cylinder 36 to rotate counterclockwise through the spring clutch 46, thereby driving the clamping plate 42 to rotate counterclockwise. At this time, the curb tends to be in a vertical state from the horizontal state. After the adjustment is completed, place the curb at the designated position and release the clamping.

[0048] At this time, the second motor 27 starts clockwise. The second motor 27 drives the two rotating shafts 45 and the support cylinder 36 to rotate clockwise synchronously through chain drive and the spring clutch 46. The two rotating shafts 45 rotate clockwise, so that the spring telescopic rod 41 rotates clockwise. Under the action of the thread, the spring telescopic rod 41 gradually extends from the rotating shaft 45; the support cylinder 36 rotates clockwise, making the clamping plate 42 tend to be horizontal. When the clamping plate 42 rotates to the position covering the rotating shaft 45, the end of the spring telescopic rod 41 abuts against the clamping plate 42. As it continues to rotate clockwise, the clamping plate 42 becomes horizontal, and the spring telescopic rod 41 changes from the extrusion contraction when it first abuts against the clamping plate 42 to the extension when it penetrates into the jack 43. The two spring telescopic rods 41 form a two-point support at both ends of the clamping plate 42.

[0049] In summary, in the structural design of this embodiment, when the clamping plate 42 is in a horizontal state, two-point auxiliary supports are formed at both ends of the clamping plate 42, which not only reduces the radial torque pressure on the output shaft of the second motor 27 to overcome the load of the curb, but also makes the clamping of the clamping plate 42 more stable. When the clamping plate 42 tends to be vertical from the horizontal, under the action of the spring clutch 46, the torque transmission is delayed, that is, the spring telescopic rod 41 can be driven to contract first, and then the clamping plate 42 can be driven to rotate counterclockwise to prevent the spring telescopic rod 41 from interfering with the rotation of the clamping plate 42.

[0050] In this embodiment, an anti-slip surface 44 is provided on the clamping plate 42. The clamping tightness between the clamping plate 42 and the curb is increased to prevent the curb from slipping off.

[0051] Preferably, in order to avoid the delay of the spring clutch 46 and ensure stable power transmission, this device is suitable for handling small curbs with a light load.

[0052] Embodiment 3, based on embodiment 2, is further provided with a delay mechanism, when rotating clockwise, the extension of the spring telescopic rod 41 is performed only after the clamping plate 42 rotates a certain angle, so as to reduce the exposed size of the stud 40 in the horizontal state and avoid collision.

[0053] The delay mechanism is a groove wheel 33 structure. At this time, the spring telescopic rod 41 is separately arranged from the rotating shaft 45. Two hollow tubes 30 are rotatably installed on the mounting plate 26 below the two rotating shafts 45. The spring telescopic rod 41 is arranged in the hollow tube 30 and axially slides with the hollow tube 30. The position of the screw hole also corresponds to the hollow tube 30.

[0054] The groove wheel 33 structure includes an extension arm 31 arranged at the end of the driven sprocket 29 away from the motor 27, and a round pin 32 is arranged at the end of the extension arm 31. The groove wheel 33 is fixed at the end of the hollow tube 30, and a limit ring is arranged on the end surface of the driven gear to match the outer circular groove 39 of the groove wheel 33. The limit ring is open, and the extension arm 31 is located at the opening of the limit ring; the opening size of the limit ring is adapted to the size of the outer circular groove 39 of the groove wheel 33, and no deflection interference occurs.

[0055] According to the above technical solution: When the motor 27 rotates clockwise, the motor 27 drives the driven sprocket 29 to rotate clockwise through the chain transmission, and the driven sprocket 29 rotates clockwise with the extension arm 31 and the round pin 32. The round pin 32 cooperates with the meshing groove 34 of the groove wheel 33 to drive the groove wheel 33 to rotate clockwise, and the groove wheel 33 drives the spring telescopic rod 41 to rotate clockwise, and then drives the stud 40 to rotate clockwise relative to the screw hole, so that the stud 40 extends outward from the hollow tube 30 with the elastic telescopic shaft. Between the time when the round pin 32 starts to rotate clockwise and contacts the meshing groove 34 of the groove wheel 33, the clamping plate 42 has begun to rotate clockwise. With respect to the synchronization of the extension and contraction of the spring telescopic rod 41 and the rotation of the clamping plate 42, such a mechanical delay between the two will shorten the rotation time of the spring telescopic rod 41, thereby shortening the length of the stud 40 to reduce the exposed length of the stud 40 and avoid collision.

[0056] Embodiment 4, on the basis of embodiment 2, in order to avoid the spring clutch 46 also having a delay in spring compression when rotating clockwise, in this embodiment, two rocker arms 37 are spaced apart on the inner wall of the support cylinder 36, and the two rocker arms 37 are axially spaced apart, and the angle between the two rocker arms 37 is not a right angle; a top rod 38 corresponding to the rocker arms 37 is provided on the output shaft of the motor 27.

[0057] When the motor 27 rotates clockwise, the push rod 38 will immediately rotate clockwise against the push rod 38 to output power to avoid power transmission delay.

[0058] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

[0059] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A portable curbstone handling device, characterized in that: The invention comprises a trolley, wherein a long rod (9) is provided on the trolley, a lifting and clamping device (10) is provided at one end of the long rod (9), and a handle (11) is provided at the other end, the lifting and clamping device (10) comprises a fixing sleeve (12) sleeved on the end of the long rod (9), a telescopic mechanism (13) is fixedly connected to the lower end of the fixing sleeve (12), a bidirectional lead screw (14) is transversely provided below the telescopic mechanism (13), the bidirectional lead screw (14) is driven by a motor 1 provided at the protruding end of the telescopic mechanism (13), and a clamping tool (15) is provided at the lower end of the bidirectional lead screw (14).

2. A portable curbstone handling device according to claim 1, characterized in that: The clamping tool (15) comprises an X-shaped movable arm (19), the X-shaped movable arm (19) being pinned at the middle intersection, the lower end of the X-shaped movable arm (19) being symmetrically fixedly connected to an inwardly inclined clamping arm (20), the end of the clamping arm (20) being pinned to a clamping block (21), and the clamping block (21) being provided with an anti-slip layer (22).

3. A portable curbstone transport device according to claim 2, characterized in that: An elastic member (23) is provided between the clamping block (21) and the X-shaped movable arm (19), and the elastic member (23) is a compression spring.

4. A portable curbstone handling device according to claim 2, characterized in that: The end of the clamping arm (20) is provided with a hollow groove (24), the back of the clamping block (21) is provided with a pin connection block (25) matching the hollow groove (24), and the clamping arm (20) and the clamping block (21) are connected via a pin shaft; the elastic member (23) connects the X-shaped movable arm (19) and the pin connection block (25).

5. The portable curbstone handling device according to claim 2, characterized in that: The lower end of the clamping arm (20) is provided with a mounting plate (26), a second motor (27) is fixed on the mounting plate (26), an output shaft of the second motor (27) is connected to a support cylinder (36) rotatably mounted on the mounting plate (26) via a spring clutch (46), a clamping plate (42) is fixed on the support cylinder (36), a rotating shaft (45) is provided on both sides of the mounting plate (26) at the second motor (27), the two rotating shafts (45) are connected to the output shaft of the second motor (27) via a chain drive, a spring telescopic rod (41) is axially slidably mounted in the two rotating shafts (45), the spring telescopic rod (41) is threadedly matched with the mounting plate (26), and a socket (43) matched with the spring telescopic rod (41) is provided on the clamping plate (42).

6. A portable curbstone handling device according to claim 5, characterized in that: The clamping plate (42) is provided with an anti-slip surface (44).

Images