Crawling ladder transport vehicle

Abstract

The embodiment of the utility model provides a crawling ladder transport vehicle, which relates to the technical field of carrying equipment and comprises a supporting vehicle frame, a crawling ladder mechanism, a supporting vehicle plate, a fixing rod and a fixing piece, the supporting frame is provided with a ladder climbing mechanism, the ladder climbing mechanism is configured to abut against the surface of a step, and the ladder climbing mechanism is used for enabling the ladder climbing transport vehicle to climb or descend on the step; a supporting vehicle plate used for loading transported objects is arranged on the supporting vehicle frame. The fixing rod is vertically arranged on the supporting vehicle plate, and the fixing piece is connected with the upper end of the fixing rod, so that when the supporting vehicle plate loads a transported object, the fixing piece fixes the upper end of the transported object. According to the crawling ladder transport vehicle, the fixing rod vertically arranged on the supporting vehicle plate has a certain height, and the fixing piece is arranged at the upper end of the fixing rod, so that the fixing piece can fix the upper end of a transported object, and the transported object is prevented from tipping over. And the crawling ladder mechanism can facilitate the movement of the crawling ladder transport vehicle on the stairs.

Description

Technical Field

[0001] The present application relates to the technical field of handling equipment, and in particular to a ladder transport vehicle. Background Art

[0002] A stair trolley is a specially designed transport tool, typically used to carry items up and down stairways. Typically operated manually, these trolleys feature multiple wheels and a foldable structure, allowing for easy movement up and down stairs. Many items, such as oil drums, are heavy and difficult to carry manually, so stair trolleys with an assisted stair-climbing mechanism are often used.

[0003] However, the existing stair transport vehicle cannot fix the upper end of the transported object, which causes the transported object to easily tip over when going up and down the stairs. Therefore, manpower is required to support and fix the object during the stair climbing process, which brings inconvenience to transportation. Utility Model Content

[0004] An embodiment of the present application provides a stair transport vehicle to solve the problem that existing stair transport vehicles cannot fix the upper end of the transported objects, causing the transported objects to easily tip over when going up and down the stairs. Therefore, manual support and fixation are required during the stair climbing process, which brings inconvenience to transportation.

[0005] The embodiment of the present application provides a ladder transport vehicle, comprising a support frame, a ladder mechanism, a support vehicle plate, a fixing rod, and a fixing member;

[0006] The support frame is provided with the ladder mechanism, which is configured to abut against the surface of the stairs, and is used to enable the ladder transport vehicle to climb or descend on the stairs;

[0007] The support frame is provided with a support plate for loading transport objects;

[0008] The fixing rod is vertically arranged on the supporting vehicle plate, and the fixing member is connected to the upper end of the fixing rod, so that when the supporting vehicle plate is loaded with the transported object, the fixing member fixes the upper end of the transported object.

[0009] In the above-mentioned preferred technical solution of the ladder transport vehicle, the fixing part includes a first U-shaped ring, a second U-shaped ring, and a driving part. The first U-shaped ring is provided with an adjustment slide groove, and the adjustment slide groove is arranged along the length direction of the two arms of the first U-shaped ring. The second U-shaped ring is slidingly connected to the groove body of the adjustment slide groove. The driving part is provided on the first U-shaped ring, and the driving part is used to drive the second U-shaped ring to slide along the adjustment slide groove.

[0010] In the above-mentioned preferred technical solution of the ladder transport vehicle, the driving part includes a driving threaded rod and a driving block. The driving block is slidingly connected to the groove body of the adjusting slide groove. The driving threaded rod is threadedly connected to the driving block. The driving block is connected to the second U-shaped ring so that when the driving threaded rod rotates, it drives the driving block to slide along the adjusting slide groove, and the driving block drives the second U-shaped ring to slide along the adjusting slide groove.

[0011] In the above-mentioned preferred technical solution of the ladder transport vehicle, the fixing rod includes an adjusting tube, a threaded adjusting rod, and a connecting block. The adjusting tube is vertically arranged on the supporting vehicle plate, and the adjusting tube is rotatably connected to the supporting vehicle frame; the threaded adjusting rod is threadedly connected to the lumen of the adjusting tube; the connecting block is sleeved on the threaded adjusting rod, and the threaded adjusting rod is threadedly connected to the connecting block; the connecting block is connected to the fixing member.

[0012] In the above-mentioned preferred technical solution of the ladder transport vehicle, a sinking mechanism is provided at the front end of the support frame, the front end of the support vehicle plate is connected to the sinking mechanism, and the rear end of the support vehicle plate is rotatably connected to the support frame. The sinking mechanism is configured so that when the support vehicle plate is loaded with the transported objects and climbs or descends on the stairs, the front end of the support vehicle plate points above the stairs and sinks downward, and the sinking mechanism limits the height to which the front end of the support vehicle plate sinks downward.

[0013] In the above-mentioned preferred technical solution of the ladder transport vehicle, the sinking mechanism includes a damping spring, a sinking chute, and a sinking connecting rod. The sinking chute is provided at the front end of the support frame and arranged along the height direction of the ladder transport vehicle. The damping spring is provided inside the trough body of the sinking chute.

[0014] One end of the sinking connecting rod is connected to the front end of the supporting vehicle plate, and the other end of the sinking connecting rod is slidably connected to the sinking chute and is placed on the top of the damping spring, so that when the front end of the supporting vehicle plate sinks downward, the sinking connecting rod slides downward along the sinking chute, and the sinking connecting rod squeezes the damping spring in the length direction of the damping spring.

[0015] In the above preferred technical solution of the ladder transport vehicle, a flip plate is provided at the rear end of the support vehicle plate, and one end of the flip plate is hinged to the support vehicle plate so that the flip plate can be flipped and folded onto the support vehicle plate;

[0016] The flip plate is configured such that, after the flip plate is flipped and folded onto the supporting vehicle plate, the abutting surface of the flip plate abuts against the surface of the transported object loaded on the ladder transport vehicle.

[0017] In the above-mentioned preferred technical solution of the ladder transport vehicle, a lifting mechanism is provided at the rear end of the support frame, and the lifting mechanism includes a lifting slot, a lifting threaded rod, and a lifting connection block. The lifting slot is provided at the rear end of the support frame and is arranged along the height direction of the ladder transport vehicle. The lifting threaded rod is vertically provided inside the slot body of the lifting slot, and the lifting threaded rod is rotatably connected to the slot body of the lifting slot.

[0018] The lifting connection block is placed inside the lifting chute, and the lifting connection block is threadedly connected to the lifting thread rod, so that when the lifting thread rod rotates, the lifting connection block is driven to move up and down along the lifting thread rod;

[0019] The lifting connection block is rotatably connected to the rear end of the support vehicle plate. The support vehicle plate is configured so that when the support vehicle plate is loaded with the transported object, the support vehicle plate rotates downward to allow the front end of the support vehicle plate to sink downward.

[0020] In the above-mentioned preferred technical solution of the ladder transport vehicle, the support vehicle plate is further provided with a blocking structure, and the blocking structure includes a blocking plate, and the blocking plate is configured so that when the transported object is loaded on the support vehicle plate, the blocking plate abuts against the surface of the transported object.

[0021] In the above preferred technical solution of the ladder transport vehicle, the said positioning structure further comprises a movable groove, a movable threaded rod, and a movable connecting block;

[0022] The movable groove is provided on the supporting vehicle plate and is arranged along the front and rear end directions of the supporting vehicle plate. A movable threaded rod is provided in the movable groove, and the movable threaded rod is rotatably connected to the groove body of the movable groove;

[0023] The movable threaded rod is threadedly connected to the movable connection block provided inside the movable groove; the positioning plate is provided above the movable groove and connected to the movable connection block;

[0024] The locking structure is configured as follows: the movable threaded rod rotates to drive the movable threaded block to move along the movable connecting block, and the movable connecting block drives the locking plate to move along the sliding groove, so that the locking plate abuts against the transported object.

[0025] In the above preferred technical solution of the ladder transport vehicle, there are at least two ladder mechanisms, and the ladder mechanisms are symmetrically arranged on both sides of the support frame;

[0026] The ladder mechanism includes a rotating shaft and three ladder wheels, wherein the rotating shaft is rotatably connected to the support frame, and the three ladder wheels are arranged around the shaft of the rotating shaft and the angles between the ladder wheels are the same;

[0027] The climbing wheel comprises a wheel frame and a rolling wheel. One end of the wheel frame is connected to the shaft body of the rotating shaft, and the other end of the wheel frame is rotatably connected to the rolling wheel.

[0028] In the above-mentioned preferred technical solution of the ladder transport vehicle, an operating handle is provided on the supporting frame.

[0029] In the above-mentioned preferred technical solution of the ladder transport vehicle, the fixing member is rotatably connected to the fixing rod.

[0030] In the above-mentioned preferred technical solution of the ladder transport vehicle, there are at least two fixing rods symmetrically arranged on both sides of the support vehicle plate, and the fixing member is rotatably connected to the fixing rod so that the fixing member can be flipped in the front and rear end directions of the support vehicle frame.

[0031] In the above-mentioned preferred technical solution of the ladder transport vehicle, the fixing member is rotatably connected to the connecting block.

[0032] The embodiment of the present application provides a ladder transport vehicle, wherein a fixing rod vertically arranged on a support frame has a certain height, and a fixing member is provided at the upper end of the fixing rod so that the fixing member can fix the upper end of the transported object to prevent the transported object from tipping over. The ladder mechanism can facilitate the movement of the ladder transport vehicle on stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0034] Figure 1 This is a schematic diagram of a ladder transport vehicle provided in an embodiment of the present application;

[0035] Figure 2 This is a front view of another ladder transport vehicle provided in an embodiment of the present application;

[0036] Figure 3 Schematic diagram of a fixing member with two U-shaped rings provided in an embodiment of the present application;

[0037] Figure 4 This is a schematic diagram of a height-adjustable fixing rod provided in an embodiment of the present application;

[0038] Figure 5 is a schematic diagram of a support frame provided in an embodiment of the present application;

[0039] Figure 6 This is a schematic diagram of a sinking connecting rod provided in an embodiment of the present application;

[0040] Figure 7 This is a rear view of another ladder transport vehicle provided in an embodiment of the present application.

[0041] 100-support frame;

[0042] 200- ladder mechanism;

[0043] 210 - rotation axis;

[0044] 220-stair wheel;

[0045] 300-supporting car plate;

[0046] 400-fixed rod;

[0047] 410-regulating tube;

[0048] 420-threaded adjustment rod;

[0049] 430-connection block;

[0050] 431-connecting cavity;

[0051] 500-fixing parts;

[0052] 510-first U-shaped ring;

[0053] 511-adjusting chute;

[0054] 520-second U-shaped ring;

[0055] 530-driving element;

[0056] 531-driving threaded rod;

[0057] 532-driver block;

[0058] 540-flip axis;

[0059] 600-settling mechanism;

[0060] 610-damping spring;

[0061] 620-settling chute;

[0062] 630-settlement connecting rod;

[0063] 700-flip board;

[0064] 800-lifting mechanism;

[0065] 810-lifting slot;

[0066] 820-lifting threaded rod;

[0067] 830-lifting connection block;

[0068] 900-card position structure;

[0069] 910-card plate;

[0070] 920-mobile slot;

[0071] 930-Moving threaded rod;

[0072] 940-Move connection block;

[0073] 1000-Operating handle.

[0074] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0075] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0076] To address the technical problem that existing stair transport vehicles cannot secure the upper end of the transported objects, causing the transported objects to easily tip over when going up and down stairs, and thus requiring manual support and fixation during the stair climbing process, which brings inconvenience to transportation, the technical concept of this application is as follows: a support plate is installed on the support frame of the ladder transport vehicle, and a fixing structure connected to the support frame is also provided. The fixing structure includes a fixing member and a fixing rod. The fixing rod is vertically fixed to the support frame, and the fixing member is connected to the upper end of the fixing rod. The fixing member is used to fix the upper end of the transported objects on the support plate. The support frame is also provided with a ladder mechanism to facilitate the movement of the ladder transport vehicle on stairs.

[0077] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0078] In one possible embodiment of the present application, a ladder transport vehicle is provided. Figure 1 This is a schematic diagram of a ladder transport vehicle provided in an embodiment of the present application. Figure 1 As shown, the ladder transport vehicle includes a support frame 100, a ladder mechanism 200, a support vehicle plate 300, a fixing rod 400, and a fixing member 500;

[0079] The support frame 100 is provided with a ladder mechanism 200, which is configured to abut against the surface of the stairs. The ladder mechanism 200 is used to enable the ladder transport vehicle to climb or descend on the stairs.

[0080] Optional, such as Figure 1 As shown, there are at least four ladder mechanisms 200, and the ladder mechanisms 200 are symmetrically arranged on both sides of the support frame 100. The ladder mechanism 200 includes a rotating shaft 210 and three ladder wheels 220. The rotating shaft 210 is rotatably connected to the support frame 100. The three ladder wheels 220 are arranged around the shaft of the rotating shaft 210 and have the same angle between each other. The ladder wheels 220 include a wheel frame 221 and a rolling wheel 222. One end of the wheel frame 221 is connected to the shaft of the rotating shaft 210, and the other end of the wheel frame 221 is rotatably connected to the rolling wheel 222. Because the three rolling wheels 222 of the ladder wheels 220 are arranged in a star shape, when climbing stairs, the ladder wheels 220 can easily climb over the stairs by alternating the supporting surfaces.

[0081] The support frame may also be provided with an operating handle 1000 to facilitate operation. The operating handle 1000 may be as follows Figure 1 Although shown as a ring, it can also be other shapes such as a rod. There is no limit to the number of operating handles 1000.

[0082] The supporting frame 100 is provided with a supporting vehicle plate 300 for loading transport objects;

[0083] The fixing rod 400 is vertically arranged on the supporting vehicle plate 300, and the fixing member 500 is connected to the upper end of the fixing rod 400, so that when the supporting vehicle plate 300 is loaded with transported objects, the fixing member 500 fixes the upper end of the transported objects.

[0084] It should be noted that the fixing member 500 can be Figure 1 The ring shape shown in the figure may also be a clamping device, which can drive a clamping member to clamp the transported object through a screw rod, and the clamping member may be a symmetrically arranged U-shaped clamping member. The present application does not limit the specific structure of the fixing member.

[0085] Optionally, there are at least two fixing rods 400 symmetrically arranged on both sides of the support vehicle plate 300, and the fixing parts 500 are rotatably connected to the fixing rods 400 so that the fixing parts 500 can be flipped in the front and rear end directions of the support vehicle frame 100. It should be noted that in actual use, the transported objects are loaded onto the vehicle at the front and rear ends of the ladder transport vehicle. Since the transported objects are usually large in size, if the fixing parts 500 cannot be flipped, the fixing parts 500 may block the transported objects, causing inconvenience to the loading of the transported objects. Therefore, designing the fixing parts 500 to be flippable along the front and rear ends of the support vehicle frame 100 can facilitate the loading of the transported objects onto the vehicle. One possible use method is to flip the fixing parts 500 so that the fixing parts 500 are vertical. After the transported objects are loaded onto the vehicle, the fixing parts 500 are flipped down and then the fixing parts 500 are fixed to the upper end of the transported objects.

[0086] The technical effect of this embodiment is that the vertical fixing rod 400 on the support vehicle plate 300 has a certain height, and the upper end of the fixing rod 400 is provided with a fixing member 500, so that the fixing member can fix the upper end of the transported object to prevent the transported object from tipping over. The ladder mechanism 200 can facilitate the movement of the ladder transport vehicle on stairs.

[0087] In one possible embodiment of the present application, another ladder transport vehicle is provided. Figure 2 This is a front view of another ladder transport vehicle provided in an embodiment of the present application. The fixing member 500 is described below.

[0088] like Figure 2 As shown, the fixing member 500 includes a first U-shaped ring 510, a second U-shaped ring 520, and a driving member 530. The first U-shaped ring 510 is provided with an adjustment slot 511, which is arranged along the length of the two arms of the first U-shaped ring 510. The adjustment slots 511 can be symmetrically arranged on the two arms of the first U-shaped ring 510. The second U-shaped ring 520 is slidably connected to the groove body of the adjustment slot 511. The driving member 530 is provided on the first U-shaped ring 510 and is used to drive the second U-shaped ring 520 to slide along the adjustment slot 511. Two driving members 530 can be symmetrically arranged on both sides of the first U-shaped ring 510.

[0089] Taking into account that different transported objects may have different sizes, for example, oil drums have different diameters, in order to accommodate transported objects of different sizes, the fixing member 500 is designed as two U-shaped rings that can move relative to each other, so that the fixing member 500 can adjust its embraced diameter.

[0090] Figure 3 This is a schematic diagram of a fixing member with two U-shaped rings provided in an embodiment of the present application. Please refer to Figure 2 、 Figure 3The driving member 530 includes a driving threaded rod 531 and a driving block 532. The driving block 532 is slidably connected to the groove body of the adjustment groove 511. The driving threaded rod 531 is threadedly connected to the driving block 532. The driving block 532 is connected to the second U-shaped ring 520, so that when the driving threaded rod 531 rotates, the driving block 532 is driven to slide along the adjustment groove 511, and the driving block 532 drives the second U-shaped ring 520 to slide along the adjustment groove 511. Specifically, the driving threaded rod 531 is threadedly driven to cause the driving block 532 to slide along the adjustment groove 511. For example, the driving block 532 can be sleeved on the driving threaded rod 531 and threadedly connected to the driving threaded rod 531. The driving block 532 then drives the second U-shaped ring 520 to slide along the adjustment groove 511. One end of the driving threaded rod 531 is exposed from the first U-shaped ring and is designed as a T-shaped head to facilitate the user's rotation of the driving threaded rod 531. The driving member 530 drives the two U-shaped rings to move in a threaded manner, which is not only easy to operate, but also the threaded connection between the driving block 532 and the driving threaded rod 531 makes it convenient for the user to lock the position of the two U-shaped rings by operating the driving threaded rod 53, thereby improving the fastening degree of the upper end of the transported object.

[0091] Next, the fixing rod 400 will be described.

[0092] Figure 4 Schematic diagram of a height-adjustable fixing rod provided in an embodiment of the present application, such as Figure 4 As shown, the fixing rod 400 includes an adjusting tube 410, a threaded adjusting rod 420, and a connecting block 430. The adjusting tube 410 is vertically arranged on the supporting frame 100, and the adjusting tube 410 is rotatably connected to the supporting frame 100; the threaded adjusting rod 420 is threadedly connected to the tubular cavity of the adjusting tube 410, and the lower end of the threaded adjusting rod 420 can be rotatably connected to the supporting vehicle plate 300; a connecting block 430 is sleeved on the threaded adjusting rod 420, and the threaded adjusting rod 420 is threadedly connected to the connecting block 430; the connecting block 430 is connected to the fixing member 500.

[0093] Please refer to Figure 2 、 Figure 4Specifically, in actual use, the user rotates the adjustment tube 410, and the adjustment tube 410 drives the threaded adjustment rod 420 to rotate by means of a threaded drive. The rotating threaded adjustment rod 420 drives the connecting block 430 to rise and fall along the threaded adjustment rod 420 by means of a threaded drive, and the connecting block 430 drives the connected fixing member 500 to move up and down. The purpose of this design is to adapt to transport objects of different heights, so that the fixing rod 400 is designed to be height-adjustable, so that the height of the fixing member 500 connected to the upper end of the fixing rod 400 can be adjusted. The adjustment tube 410, the threaded adjustment rod 420, and the connecting block 430 are all driven by each other by a threaded drive, which is not only easy to operate, but the user can also lock the height of the connecting block 430 by operating the adjustment tube 410, thereby locking the height of the fixing member 500, thereby improving the tightness of the upper end of the transported object. The fixing member 500 can be rotatably connected to the connecting block 430 so that the fixing member 500 can be flipped in the front and rear end directions of the support frame 100 to avoid interference with the transportation of the transported object by the fixing member 500. Figure 4 As shown, a connecting cavity 431 may be provided on the connecting block 430 , and the connecting cavity 431 is rotatably connected to the flip shaft 540 on the fixing member 500 , so that the fixing member 500 can be flipped in the front and rear end directions of the supporting frame 100 .

[0094] Next, the sedimentation mechanism 600 will be described.

[0095] Figure 5 This is a schematic diagram of the support frame provided in the embodiment of the present application, please refer to Figure 2 、 Figure 5 The front end of the support frame 100 is provided with a sinking mechanism 600. The front end of the support plate 300 is connected to the sinking mechanism 600, and the rear end of the support plate 300 is rotatably connected to the support frame 100. The sinking mechanism 600 is configured such that when the support plate 300, loaded with transported objects, ascends or descends the stairs, the front end of the support plate 300 points upward and sinks downward, limiting the downward height of the front end of the support plate 300. The sinking mechanism 600 can use a damping element to offset the gravity of the transported objects, thereby maintaining a suitable sinking height of the support plate 300. The damping element can include a damper, a damping spring, a damping gasket, or a damping material. The damping element can be suspended from the support frame 100 at one end and connected to the support plate 300 at the other end, or the damping element can be placed below the support plate 300. Two sinking mechanisms 600 can be symmetrically arranged on either side of the support frame 100.

[0096] In the prior art, the deck of a ladder transport vehicle is fixed. Since the ladder transport vehicle needs to move on the stairs, the deck is also tilted, which makes the transported objects placed on the deck easily tip over. In this embodiment, by providing a sinking mechanism 600 at the front end of the support deck 300, when the transported objects are placed on the support deck 300, since the rear end of the support deck 300 is rotatably connected to the support frame 100, the support deck 300 sinks downward under the action of gravity. The sinking mechanism 600 limits the downward sinking height of the front end of the support deck 300, so that the support deck 300 sinks to an appropriate height, thereby keeping the support deck 300 in a relatively horizontal state on the stairs, thereby reducing the risk of the transported objects tipping over and alleviating the workload of the operator.

[0097] Optionally, the sinking mechanism 600 includes a damping spring 610, a sinking chute 620, and a sinking connecting rod 630. The sinking chute 620 is provided at the front end of the support frame 100 and arranged along the height direction of the ladder transport vehicle. The damping spring 610 is provided inside the trough body of the sinking chute 620.

[0098] Figure 6 This is a schematic diagram of the sinking connecting rod provided in the embodiment of the present application. Figure 6 As shown, the sinking connecting rod 630 is placed at the front end of the supporting vehicle plate 300. The sinking connecting rod 630 is horizontal, and one end of the sinking connecting rod 630 is connected to the front end of the supporting vehicle plate 300. Figure 2 、 Figure 5 、 Figure 6 A damping spring 610 is vertically mounted within the sinking chute 620. A sinking connecting rod 630 is inserted above the damping spring 610, and the end of the sinking connecting rod 630 that is inserted into the sinking chute 620 is slidably connected to the sinking chute 620. This allows the support platform 300 to be placed with a heavy object. As the front end of the support platform 300 sinks downward under the force of gravity, the sinking connecting rod 630 slides downward along the sinking chute 620, squeezing the damping spring 610 along its length. The damping spring 610 absorbs the weight of the object, lowering the support platform 300 to an appropriate height. Furthermore, when the ladder transport vehicle moves on stairs, the damping spring 610 can buffer external forces, improving transport stability.

[0099] When there are two sinking mechanisms 600 symmetrically disposed on both sides of the supporting frame 100 , there are also two sinking connecting rods 630 disposed on both sides of the front end of the supporting vehicle plate 300 to connect the two sinking mechanisms 600 respectively.

[0100] The lifting mechanism 800 and the turning plate 700 are described below.

[0101] Please refer to Figure 5The rear end of the support frame 100 is provided with a lifting mechanism 800, which includes a lifting slot 810, a lifting threaded rod 820, and a lifting connection block 830. The lifting slot 810 is provided at the rear end of the support frame 100 and is arranged along the height direction of the ladder transport vehicle. The lifting threaded rod 820 is vertically provided inside the slot body of the lifting slot 810, and the lifting threaded rod 820 is rotatably connected to the slot body of the lifting slot 810.

[0102] The lifting connection block 830 is placed inside the lifting chute, and the lifting connection block 830 is threadedly connected to the lifting threaded rod 820, so that when the lifting threaded rod 820 rotates, the lifting connection block 830 is driven to rise and fall along the lifting threaded rod 820;

[0103] Specifically, the lifting connection block 830 can be sleeved on the lifting threaded rod 820, and the inner cavity of the lifting connection block 830 is threadedly connected to the lifting threaded rod 820. Therefore, by rotating the lifting threaded rod 820, the lifting threaded rod 820 can drive the lifting connection block 830 to rise and fall along the lifting threaded rod 820 through thread drive, and the lifting connection block 830 drives the rear end of the support vehicle plate 300 to rise and fall along the lifting threaded rod 820. The lifting threaded rod 820 can be partially exposed outside the support vehicle frame 100, thereby facilitating the user's operation of the lifting threaded rod 820.

[0104] Optionally, the lifting connection block 830 is rotatably connected to the rear end of the support platform 300. The support platform 300 is configured such that, when the support platform 300 is loaded with transport objects, the support platform 300 rotates downward to allow the front end of the support platform 300 to sink downward. A transverse axis can be provided at the rear end of the support platform 300 to be rotatably connected to the lifting connection block 830, thereby allowing the support platform 300 to rotate in the front and rear end directions of the support frame 100.

[0105] There can be two lifting mechanisms 800 symmetrically arranged on both sides of the rear end of the supporting frame 100 .

[0106] Figure 7 This is a rear view of another ladder transport vehicle provided in an embodiment of the present application. Figure 7 As shown, a flip plate 700 is provided at the rear end of the supporting vehicle plate 300, and one end of the flip plate 700 is hinged to the supporting vehicle plate 300 so that the flip plate 700 can be flipped and folded on the supporting vehicle plate 300;

[0107] The flip plate 700 is configured such that, after the flip plate 700 is flipped and folded onto the supporting vehicle plate 300 , the abutting surface of the flip plate 700 abuts against the surface of the transported object loaded on the ladder transport vehicle.

[0108] In actual use, the rear end of the support plate 300 can be lowered by the lifting mechanism 800, and then the flip plate 700 can be flipped backwards, and the lower end of the flip plate 700 can abut against the ground, thus forming a slope formed by the flip plate 700 and the support plate 300. Considering that the weight of the transported object may be large, the design of such a slope can facilitate the transport of the transported object onto the support plate 300. Moreover, after the transported object is moved up, the rear end of the support plate 300 can be raised by operating the lifting mechanism 800, and then the flip plate 700 can be flipped and folded. Since the flip plate 700 has a certain thickness, the rear end of the flip plate 700 abuts against the transported object, which can play a role in auxiliary fixation. Figure 2 、 Figure 6 、 Figure 7 As shown, the rear end of the flip plate 700 can be designed to be arc-shaped to facilitate fixing the oil barrel.

[0109] The following describes the card structure.

[0110] like Figure 2 、 Figure 5 、 Figure 6 As shown, the support platform 300 is further provided with a retaining structure 900, which includes a retaining plate 910. The retaining plate 910 is configured to abut against the surface of the transported object when the support platform 300 is loaded. The retaining plate 910 assists in securing the transported object on the support platform 300. The retaining plate 900 can be designed in an arc shape to facilitate securing the oil drum.

[0111] Optionally, the locking structure 900 further includes a movable groove 920, a movable threaded rod 930, and a movable connecting block 940;

[0112] The movable groove 920 is provided on the supporting vehicle plate 300 and is arranged along the front and rear end direction of the supporting vehicle plate 300. A movable threaded rod 930 is provided in the movable groove 920. The movable threaded rod 930 is rotatably connected to the groove body of the movable groove 920.

[0113] The movable threaded rod 930 is threadedly connected to the movable connecting block 940 provided inside the movable groove 920. The positioning plate 910 is provided above the movable groove 920 and is connected to the movable connecting block 940.

[0114] The locking structure 900 is configured as follows: the movable threaded rod 930 rotates to drive the movable threaded block to move along the movable connecting block 940, and the movable connecting block 940 drives the locking plate 910 to move along the sliding groove, so that the locking plate 910 abuts against the transported object.

[0115] Specifically, the upper portion of the movable groove 920 is open, so that the positioning plate 910 can move forward and backward along the movable groove 920. The movable connecting block 940 can be sleeved on the movable threaded rod 930, and the inner cavity of the movable connecting block 940 is threadedly connected to the movable threaded rod 930. Figure 6 As shown, a portion of the movable threaded rod 930 can be exposed at the front end of the supporting vehicle plate 300 for easy operation. During actual use, the user rotates the movable threaded rod 930, and the movable threaded rod 930 drives the movable connecting block 940 to move along the movable threaded rod 930 by thread drive, and the movable connecting block 940 drives the clamping plate 910 to move along the movable groove 920. The purpose of this design is to design the clamping plate 910 to be movable back and forth, taking into account the different sizes of the transported objects, so as to adapt to transported objects of different sizes. Furthermore, in the case of having both the flip plate 700 and the clamping plate 910, the clamping force on the transported object can be adjusted by moving the clamping plate 910 by thread drive.

[0116] Taking an oil drum as an example, a possible use of another ladder transport vehicle proposed in this embodiment is described:

[0117] Flip the fixing member 500 to a vertical position, then operate the lifting mechanism 800 to lower the rear end of the support plate 300, open the flip plate 700 to form a slope, and push the oil barrel onto the support plate 300 along the slope;

[0118] Operate the lifting mechanism 800 to raise the rear end of the supporting vehicle plate 300, flip and fold the flip plate 700, and make the flip plate 700 contact the oil drum;

[0119] Turn the fixing member 500 to a horizontal position, rotate the adjustment tube 410 to raise the fixing member 500 to a suitable height, and then rotate the adjustment tube 410 in the opposite direction to lock the height of the fixing member 500;

[0120] Adjust the driving member 530 to move the second U-shaped ring 520 so that the first U-shaped ring 510 and the second U-shaped ring 520 tightly embrace the upper end of the oil barrel;

[0121] Operate the locking mechanism 900 and move the locking plate 910 so that the locking plate 910 and the flip plate 700 can clamp the oil drum together;

[0122] The front end of the support frame 100 faces the moving direction on the stairs. At this time, due to the action of the sinking mechanism 600, the support vehicle plate 300 remains horizontal on the stairs. Then, the ladder transport vehicle is pushed or pulled to move on the stairs by operating the handle 1000.

[0123] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. It is not limited to the precise structure described above and illustrated in the drawings, and various modifications and variations may be made without departing from the scope of the invention. The scope of the invention is limited solely by the appended claims.

Claims

1. A ladder transport vehicle, characterized in that: It comprises a supporting frame (100), a ladder climbing mechanism (200), a supporting plate (300), a fixing rod (400), and a fixing member (500); The support frame (100) is provided with the ladder mechanism (200), the ladder mechanism (200) being configured to abut against a step surface, and the ladder mechanism (200) being used to enable the ladder transport vehicle to climb up or down on the step; The support frame (100) is provided with a support plate (300) for loading transport objects; The fixing rod (400) is vertically arranged on the supporting vehicle plate (300), and the fixing member (500) is connected to the upper end of the fixing rod (400), so that when the supporting vehicle plate (300) is loaded with the transported object, the fixing member (500) fixes the upper end of the transported object.

2. The ladder transport vehicle according to claim 1, characterized in that: The fixing member (500) comprises a first U-shaped ring (510), a second U-shaped ring (520), and a driving member (530). The first U-shaped ring (510) is provided with an adjusting chute (511), and the adjusting chute (511) is arranged along the length direction of the two arms of the first U-shaped ring (510). The second U-shaped ring (520) is slidably connected to the groove body of the adjusting chute (511). The driving member (530) is provided on the first U-shaped ring (510), and the driving member (530) is used to drive the second U-shaped ring (520) to slide along the adjusting chute (511).

3. The ladder transport vehicle according to claim 2, characterized in that: The driving member (530) includes a driving threaded rod (531) and a driving block (532). The driving block (532) is slidably connected to the groove body of the adjusting chute (511). The driving threaded rod (531) is threadedly connected to the driving block (532). The driving block (532) is connected to the second U-shaped ring (520), so that when the driving threaded rod (531) rotates, the driving block (532) is driven to slide along the adjusting chute (511). The driving block (532) drives the second U-shaped ring (520) to slide along the adjusting chute (511).

4. The ladder transport vehicle according to claim 1, characterized in that: The fixing rod (400) includes an adjusting tube (410), a threaded adjusting rod (420), and a connecting block (430). The adjusting tube (410) is vertically arranged on the supporting vehicle plate (300), and the adjusting tube (410) is rotatably connected to the supporting vehicle plate (300); the threaded adjusting rod (420) is threadedly connected to the lumen of the adjusting tube (410); the connecting block (430) is sleeved on the threaded adjusting rod (420), and the threaded adjusting rod (420) is threadedly connected to the connecting block (430); the connecting block (430) is connected to the fixing member (500).

5. The ladder transport vehicle according to claim 1, characterized in that: The front end of the support frame (100) is provided with a sinking mechanism (600), the front end of the support plate (300) is connected to the sinking mechanism (600), and the rear end of the support plate (300) is rotatably connected to the support frame (100), and the sinking mechanism (600) is configured such that when the support plate (300) loaded with the transported object climbs or descends on the step, the front end of the support plate (300) points to the top of the step and sinks downward, and the sinking mechanism (600) limits the height to which the front end of the support plate (300) sinks downward.

6. The ladder transport vehicle according to claim 5, characterized in that: The sinking mechanism (600) comprises a damping spring (610), a sinking chute (620), and a sinking connecting rod (630); the sinking chute (620) is provided at the front end of the support frame (100) and arranged along the height direction of the ladder transport vehicle; the damping spring (610) is provided inside the trough body of the sinking chute (620); One end of the sinking connecting rod (630) is connected to the front end of the supporting vehicle plate (300), and the other end of the sinking connecting rod (630) is slidably connected to the sinking chute (620) and is placed on the top end of the damping spring (610), so that when the front end of the supporting vehicle plate (300) sinks downward, the sinking connecting rod (630) slides downward along the sinking chute (620), and the sinking connecting rod (630) squeezes the damping spring (610) in the length direction of the damping spring (610).

7. The ladder transport vehicle according to claim 1, characterized in that: A flip plate (700) is provided at the rear end of the support vehicle plate (300), and one end of the flip plate (700) is hinged to the support vehicle plate (300) so that the flip plate (700) can be flipped and folded onto the support vehicle plate (300); The flip plate (700) is configured such that, after the flip plate (700) is flipped and folded onto the supporting vehicle plate (300), the abutting surface of the flip plate (700) abuts against the surface of the transported object loaded on the ladder transport vehicle.

8. The ladder transport vehicle according to claim 7, characterized in that: The rear end of the support frame (100) is provided with a lifting mechanism (800), the lifting mechanism (800) comprising a lifting slot (810), a lifting threaded rod (820), and a lifting connection block (830), the lifting slot (810) being provided at the rear end of the support frame (100) and arranged along the height direction of the ladder transport vehicle, the lifting threaded rod (820) being vertically provided inside the slot body of the lifting slot (810), and the lifting threaded rod (820) being rotatably connected to the slot body of the lifting slot (810); The lifting connection block (830) is placed inside the lifting chute, and the lifting connection block (830) is threadedly connected to the lifting threaded rod (820), so that when the lifting threaded rod (820) rotates, the lifting connection block (830) is driven to rise and fall along the lifting threaded rod (820); The lifting connection block (830) is rotatably connected to the rear end of the support vehicle plate (300), and the support vehicle plate (300) is configured such that when the support vehicle plate (300) is loaded with the transported object, the support vehicle plate (300) rotates downward to allow the front end of the support vehicle plate (300) to sink downward.

9. The ladder transport vehicle according to claim 1, characterized in that: The support vehicle plate (300) is further provided with a locking structure (900), the locking structure (900) comprising a locking plate (910), the locking plate (910) being configured such that when the transported object is loaded on the support vehicle plate (300), the locking plate (910) abuts against the surface of the transported object.

10. The ladder transport vehicle according to claim 9, characterized in that: The locking structure (900) further includes a movable groove (920), a movable threaded rod (930), and a movable connecting block (940); The movable groove (920) is provided on the supporting vehicle plate (300) and is arranged along the front and rear end directions of the supporting vehicle plate (300); a movable threaded rod (930) is provided in the movable groove (920); the movable threaded rod (930) is rotatably connected to the groove body of the movable groove (920); The movable threaded rod (930) is threadably connected to the movable connection block (940) provided inside the groove body of the movable groove (920); the positioning plate (910) is provided above the movable groove (920) and the positioning plate (910) is connected to the movable connection block (940); The locking structure (900) is configured as follows: the movable threaded rod (930) rotates to drive the movable threaded block to move along the movable connecting block (940), and the movable connecting block (940) drives the locking plate (910) to move along the movable groove, so that the locking plate (910) abuts against the transported object.

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