阅读说明：本技术 一种建筑施工用推车 (Shallow for construction ) 是由 周长顺 康宝 黄罗斌 孙晓龙 于 2021-08-11 设计创作，主要内容包括：本发明公开了一种建筑施工用推车,包括：支撑平台,包括第一托盘和多个第一脚轮；夹紧机构,包括两个联动组件,联动组件包括第一档杆、多个转动杆和第一滑动杆,第一档杆位于第一托盘上方,转动杆为Z字形杆,两端分别与第一托盘和第一档杆转动连接,第一滑动杆与第一档杆前后滑动连接；调节机构,包括收卷支座和用于对收卷支座进行转动限位的第一限位机构；伸展平台,包括第二托盘和多个第二脚轮,第二托盘与第一托盘前后滑动连接；绳索,穿设于收卷支座,收卷支座转动时带动绳索调节联动组件进行物料夹紧或松开。该装置可实现长宽高方向调节,便于不同尺寸物料堆放及运输,避免物料损耗及环境污染,可单人操作,省时省力,装卸输送效率高。(The invention discloses a cart for building construction, comprising: a support platform comprising a first tray and a plurality of first casters; the clamping mechanism comprises two linkage assemblies, each linkage assembly comprises a first stop rod, a plurality of rotating rods and a first sliding rod, the first stop rod is positioned above the first tray, the rotating rods are Z-shaped rods, two ends of each rotating rod are respectively connected with the first tray and the first stop rod in a rotating mode, and the first sliding rods are connected with the first stop rods in a front-back sliding mode; the adjusting mechanism comprises a rolling support and a first limiting mechanism for limiting the rolling support in a rotating manner; the extension platform comprises a second tray and a plurality of second trundles, and the second tray is connected with the first tray in a front-back sliding manner; the rope wears to locate the rolling support, and the rolling support drives the rope when rotating and adjusts the linkage subassembly and carry out the material and press from both sides tightly or loosen. The device can realize length width height direction and adjust, and the not unidimensional material of being convenient for is stacked and is transported, avoids material loss and environmental pollution, but one-man operation, labour saving and time saving, loading and unloading conveying efficiency is high.)

1. The utility model provides a shallow for construction which characterized in that: the cart for building construction includes:

a support platform (1) comprising a first tray and a plurality of first casters (13) disposed below the first tray;

the clamping mechanism (2) comprises two linkage assemblies which are respectively positioned on the left side and the right side of the first tray, each linkage assembly comprises a first stop rod (21), a plurality of rotating rods (22) and a first sliding rod (23), the first stop rods (21) are horizontally arranged above the first tray, the rotating rods (22) are Z-shaped rods which are in right-angle turning, two ends of each rotating rod are respectively rotatably connected with the first tray and the first stop rods (21), the vertical distance between each first stop rod (21) and the first tray is adjustable, and the first sliding rods (23) are slidably connected with the first stop rods (21) to realize the front-back direction expansion;

the adjusting mechanism (3) comprises a rolling support (31) and a first limiting mechanism, the rolling support (31) is rotatably connected with the first tray and provided with a second wire passing hole (31a), and the first limiting mechanism is fixedly connected with the first tray and used for limiting the rolling support (31) in a rotating manner;

the extension platform (4) comprises a second tray and a plurality of second trundles (45) arranged below the second tray, and the second tray is slidably connected with the first tray to realize the extension in the front-back direction;

rope (5), wear to locate the second of rolling support (31) crosses line hole (31a), and both ends respectively with two first shelves pole (21) are connected, drive when rolling support (31) rotate rope (5) receive and release and carry out linkage assembly's regulation to realize the clamp of material or loosen.

2. The cart for construction according to claim 1, wherein: the first tray comprises a flat plate (11) and fixing frames (12) which are respectively arranged on the left side and the right side of the flat plate (11), the lower end of a rotating rod (22) of each linkage assembly is rotatably connected with the fixing frames (12) on the same side, and two first trundles (13) are correspondingly arranged below the fixing frames (12).

3. The cart for construction according to claim 2, wherein: the second tray comprises two second sliding rods (41), a plurality of sliding sleeves (42), a plurality of second limiting mechanisms, a plurality of second pins (43) and at least one second stopping rod (44), a first sliding groove (12a) is formed in the fixing frame (12), the first sliding groove (12a) and the sliding sleeve (42) are in sliding fit with the second sliding rods (41) in the front and back direction and are limited through the second limiting mechanisms, the second casters (45) are connected with the sliding sleeves (42) in a one-to-one correspondence mode, each second sliding rod (41) corresponds to two sliding sleeves (42), the second stopping rods (44) are connected with two second sliding rods (41) in an inserting mode through the second pins (43), and a third limiting block (41b) is further arranged on one side, far away from the fixing frame (12), of each second sliding rod (41).

4. The cart for construction according to claim 3, wherein: the second limiting mechanism comprises a first pin (12b) and a magnetic ring (12e) sleeved on the first pin (12b), a plurality of adjusting holes (41a) are formed in the second sliding rod (41), and the first pin (12b) penetrates through the fixed frame (12) or the sliding sleeve (42) to be matched with the adjusting holes (41a) for limiting.

5. The cart for construction according to claim 2, wherein: set up a plurality of spacing rings (22a) that set up side by side on dwang (22), keep away from on mount (12) one side of dull and stereotyped (11) is equipped with a plurality of spring plunger (12d), spring plunger (12d) and dwang (22) one-to-one, and rather than one spacing ring (22a) cooperation is spacing.

6. The cart for construction according to claim 2, wherein: still seted up a plurality of first notches (12c) on mount (12), first notch (12c) are opening horn mouth outwards to with dwang (22) one-to-one, work as when first shelves pole (21) rotate to the outside, dwang (22) move down adjust to its middle pole portion with the upside parallel and level of mount (12).

7. The cart for construction according to claim 2, wherein: the winding support (31) comprises a rotating shaft and a first limiting block (32), the rotating shaft comprises a handle (31c), a first shaft section (31d), a second shaft section (31e) and a third shaft section (31f) which are sequentially connected, the first limiting block (32) is connected with the third shaft section (31f) and coaxially arranged, the diameter of the second shaft section (31e) and the diameter of the first limiting block (32) are larger than that of the third shaft section (31f), a line passing hole is formed in the first shaft section (31d) in the second mode, a plurality of first limiting holes (31b) are uniformly distributed in the circumferential direction of the third shaft section (31f), the first limiting mechanism comprises a plunger (33), a mounting seat (34) and a spring (35), the plunger (33) is sleeved in the mounting seat (34) and is matched with the axial sliding mode, the spring (35) penetrates through the plunger (33) and two ends of the plunger (33) are respectively abutted against the plunger (33) and the mounting seat (34), set up first mounting hole (11a) and second mounting hole (11b) that link up from top to bottom on dull and stereotyped (11), first mounting hole (11a) are located the front side of dull and stereotyped (11), mount pad (34) are connected with first mounting hole (11a) cooperation, third shaft section (31f) rotate with second mounting hole (11b) and are connected and pass through the cooperation of plunger (33) and first spacing hole (31b) is spacing.

8. The cart for construction according to claim 1, wherein: one end of the first gear lever (21) close to the adjusting mechanism (3) is provided with a first wire passing hole (21a), and two ends of the rope (5) are respectively connected with the first wire passing holes (21a) of the first gear lever (21) in a penetrating manner.

9. The cart for construction according to claim 1, wherein: a handle (14) is also mounted on the first tray.

10. The cart for construction according to claim 1, wherein: rubber plates are further mounted on the first tray and the second tray.

Technical Field

The invention belongs to the technical field of transportation equipment, and particularly relates to a trolley for building construction.

Background

The cart is a manual push-pull carrying vehicle, is a small material conveying device, is widely applied in production and life, has low manufacturing cost, simple maintenance, convenient operation and light dead weight, can work in places where motor vehicles are inconvenient to use, and is very convenient for carrying articles in short distance. Therefore, it is very important to transport materials by using the cart in the construction site.

The size difference of general building construction material is great, and the shallow among the prior art has following defect: 1) only goods within a certain size range can be collected, the goods are inconvenient to stack, and the goods with larger size cannot be loaded, so that the use range is limited; 2) the length of the cart cannot be adjusted, the material dragging abrasion or the tail end breakage often occurs when longer materials are conveyed, so that the material loss and the environmental pollution are caused, and meanwhile, the friction between the materials after being dragged and the ground can be separated from the cart, so that the conveying efficiency is reduced; 3) when loading or transporting materials, loading and unloading efficiency is low, and manpower assistance is needed to avoid slipping, so that the labor cost is high. For this reason, a flat bed cart for efficient transport is proposed.

Disclosure of Invention

The invention aims to solve the problems, provides a trolley for building construction, which can realize three-direction adjustment of length, width and height, is convenient for stacking and transporting materials with different sizes, avoids material loss and environmental pollution, has high conveying efficiency and wide application range, can be operated by a single person, is time-saving and labor-saving, has high loading and unloading efficiency, can be quickly positioned and assembled, and has high material conveying stability and bearing capacity.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the invention provides a cart for building construction, which comprises:

the supporting platform comprises a first tray and a plurality of first trundles arranged below the first tray;

the clamping mechanism comprises two linkage assemblies which are respectively positioned at the left side and the right side of the first tray, each linkage assembly comprises a first stop rod, a plurality of rotating rods and a first sliding rod, the first stop rods are horizontally arranged above the first tray, the rotating rods are Z-shaped rods which turn at right angles, two ends of each rotating rod are respectively rotatably connected with the first tray and the first stop rods, the vertical distance between the first stop rods and the first tray is adjustable, and the first sliding rods are slidably connected with the first stop rods to realize the front-back direction expansion;

the adjusting mechanism comprises a rolling support and a first limiting mechanism, the rolling support is rotatably connected with the first tray and is provided with a second wire passing hole, and the first limiting mechanism is fixedly connected with the first tray and is used for limiting the rolling support in a rotating mode;

the extension platform comprises a second tray and a plurality of second trundles arranged below the second tray, and the second tray is slidably connected with the first tray to realize the extension in the front-back direction;

the rope, wear to locate the second of rolling support and cross the line hole, and both ends are connected with two first shelves poles respectively, and the rolling support drives the rope and receive and releases the regulation that carries out linkage assembly when rotating to realize pressing from both sides tightly or loosening of material.

Preferably, the first tray comprises a flat plate and fixing frames respectively arranged at the left side and the right side of the flat plate, the lower end of the rotating rod of each linkage assembly is rotatably connected with the fixing frame at the same side, and two first trundles are correspondingly arranged below each fixing frame.

Preferably, the second tray includes two second slide bars, a plurality of sliding sleeves, a plurality of second stop gear, a plurality of second pins and at least one second shelves pole, be equipped with first spout on the mount, first spout and sliding sleeve all with second slide bar front and back sliding fit, and spacing through second stop gear, the second truckle is connected with the sliding sleeve one-to-one, each second slide bar corresponds two sliding sleeves, second shelves pole is pegged graft through the second pin with two second slide bars, the one side of keeping away from the mount on the second slide bar still is equipped with the third stopper.

Preferably, the second limiting mechanism comprises a first pin and a magnetic ring sleeved on the first pin, a plurality of adjusting holes are formed in the second sliding rod, and the first pin penetrates through the fixing frame or the sliding sleeve to be matched with the adjusting holes for limiting.

Preferably, set up a plurality of spacing rings that set up side by side on the dwang, keep away from dull and stereotyped one side on the mount and be equipped with a plurality of spring plunger, spring plunger and dwang one-to-one to it is spacing rather than a spacing ring cooperation.

Preferably, a plurality of first notches are further formed in the fixing frame, each first notch is a horn mouth with an outward opening and corresponds to the corresponding rotating rod one by one, and when the first blocking rod rotates to the outer side, the rotating rod moves downwards to be adjusted to the upper side flush with the fixing frame in the middle of the rod portion.

Preferably, the rolling support comprises a rotating shaft and a first limiting block, the rotating shaft comprises a handle and a first shaft section which are connected in sequence, second shaft section and third shaft section, first stopper is connected and coaxial setting with the third shaft section, the diameter of second shaft section and first stopper is greater than the diameter of third shaft section, the second is crossed the line hole and is seted up on first shaft section, the hoop equipartition of third shaft section has a plurality of first spacing holes, first stop gear includes the plunger, mount pad and spring, the plunger cover is located in the mount pad and along axial sliding fit, the spring is worn to locate on the plunger and both ends are supported respectively and are leaned on plunger and mount pad, set up first mounting hole and the second mounting hole that link up from top to bottom on the flat board, first mounting hole is located dull and stereotyped front side, the mount pad is connected with the cooperation of first mounting hole, the third shaft section rotates with the second mounting hole to be connected and spacing through the cooperation of plunger with first spacing hole.

Preferably, a first wire passing hole is formed in one end, close to the adjusting mechanism, of the first gear lever, and two ends of the rope are respectively connected with the first wire passing holes of the two first gear levers in a penetrating mode.

Preferably, a handle is further mounted on the first tray.

Preferably, rubber plates are further mounted on the first tray and the second tray.

Compared with the prior art, the invention has the beneficial effects that:

1) the width direction self-adaptive clamping is realized by synchronously adjusting the two linkage assemblies through the adjusting mechanism, the height direction of the clamping mechanism is adjusted through the matching of a limiting ring of the rotating rod and a spring plunger, the length direction extension is realized through the sliding connection of the extension platform and the supporting platform and the sliding connection of the first sliding rod and the first stop rod, the adjustment of the length direction, the width direction and the height direction can be realized, the stacking of materials is convenient, the sliding is avoided, the materials with different sizes can be transported, the dragging abrasion, the separation or the breakage cannot occur when the materials are longer, the material loss and the environmental pollution are avoided, the transportation efficiency is greatly improved, and the application range is wide;

2) the material loading or unloading can be quickly realized by adopting the adjusting mechanism, the material loading or unloading can be operated by one person, the time and the labor are saved, other manpower assistance is not needed, the manpower cost is low, and the loading and unloading efficiency is high;

3) the first limiting mechanism, the second limiting mechanism and the spring plunger are used for realizing rapid positioning and assembling of each component, adjustment is convenient, the working efficiency is high, the second limiting mechanism is adsorbed by the magnetic ring, the first pin is enabled to penetrate through the fixing frame or the sliding sleeve to be matched with the adjusting hole for limiting, and then the first pin cannot be loosened, so that the convenient and fast stability of positioning is ensured;

4) through the sliding fit of sliding sleeve and second slide bar, be convenient for realize the regulation of different length in order to adapt to not unidimensional material and adjust in order to avoid stress concentration to cause the second slide bar rupture to the second truckle, and supported by the cooperation of multiunit truckle, improved the stability and the bearing capacity that the material was carried.

Drawings

FIG. 1 is a schematic structural view of a construction cart according to the present invention;

fig. 2 is a sectional view of the cart for construction according to the present invention;

FIG. 3 is a schematic view of the present invention with the stretching platform removed;

FIG. 4 is a schematic view of the clamping mechanism of the present invention;

FIG. 5 is a partial enlarged view A of the present invention;

FIG. 6 is a partial enlarged view B of the present invention;

fig. 7 is a partial cross-sectional view of an adjustment mechanism of the present invention.

Description of reference numerals: 1. a support platform; 2. a clamping mechanism; 3. an adjustment mechanism; 4. an extension platform; 5. a rope; 11. a flat plate; 12. a fixed mount; 13. a first caster; 14. a handle; 11a, a first mounting hole; 11b, a second mounting hole; 12a, a first chute; 12b, a first pin; 12c, a first notch; 12d, a spring plunger; 12e, a magnetic ring; 21. a first shift lever; 22. rotating the rod; 23. a first slide bar; 21a, a first wire passing hole; 21b, a second chute; 22a, a limiting ring; 22b and a second limiting block; 31. winding a support; 32. a first stopper; 33. a plunger; 34. a mounting seat; 35. a spring; 31a and a second wire through hole; 31b, a first limiting hole; 31c, a handle; 31d, a first shaft section; 31e, a second shaft section; 31f, a third shaft segment; 41. a second slide bar; 42. a sliding sleeve; 43. a second pin; 44. a second shift lever; 45. a second caster; 41a, an adjusting hole; 41b and a third limiting block.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

As shown in fig. 1 to 7, a cart for construction includes:

the supporting platform 1 comprises a first tray and a plurality of first casters 13 arranged below the first tray;

the clamping mechanism 2 comprises two linkage assemblies which are respectively positioned at the left side and the right side of the first tray, each linkage assembly comprises a first stop rod 21, a plurality of rotating rods 22 and a first sliding rod 23, the first stop rods 21 are horizontally arranged above the first tray, the rotating rods 22 are Z-shaped rods which turn at right angles, two ends of each Z-shaped rod are respectively rotatably connected with the first tray and the first stop rods 21, the vertical distance between the first stop rods 21 and the first tray is adjustable, and the first sliding rods 23 are slidably connected with the first stop rods 21 to realize the front-back direction extension;

the adjusting mechanism 3 comprises a rolling support 31 and a first limiting mechanism, the rolling support 31 is rotatably connected with the first tray and is provided with a second wire passing hole 31a, and the first limiting mechanism is fixedly connected with the first tray and is used for limiting the rolling support 31 in a rotating manner;

the extension platform 4 comprises a second tray and a plurality of second caster wheels 45 arranged below the second tray, and the second tray is slidably connected with the first tray to realize the extension in the front-back direction;

the rope 5 penetrates through the second wire passing hole 31a of the rolling support 31, two ends of the rope are connected with the two first blocking rods 21 respectively, and the rolling support 31 drives the rope 5 to be wound and unwound to adjust the linkage assembly when rotating, so that materials are clamped or loosened.

The upper and lower position of this application corresponds direction of height, and the fore-and-aft position corresponds length direction, and the left and right position corresponds width direction, only is used for describing specific position so that understand, does not make only the restriction.

Wherein, first tray and second tray all are used for bearing the weight of the material, and the material can be construction materials, or still can transport other materials according to actual demand to realize the steady support transportation through first truckle and second truckle, improved the stability and the bearing capacity that the material was carried. The first blocking rod 21 is provided with a second sliding groove 21b, the first sliding rod 23 is in sliding fit with the second sliding groove 21b, and preferably, the upper rod parts (namely the rod parts connected with the first blocking rod 21) of the corresponding first sliding rod 23, the first blocking rod 21 and the rotating rod 22 are parallel and level to one side close to the material, so that the material is conveniently and synchronously blocked. The self-adaptation through adjustment mechanism to two linkage subassemblies is adjusted in step and is realized that width direction's self-adaptation presss from both sides tightly and direction of height separates the fender, and through the sliding connection of extension platform and supporting platform, the sliding connection of first slide bar and first shelves pole realizes length direction's extension, can realize the regulation of three directions of length, width and height, the material of being convenient for is stacked, avoid the landing, can transport not unidimensional material, and can not appear dragging ground wearing and tearing when the material is longer, break away from or break, avoid material loss and environmental pollution, improve conveying efficiency greatly, wide application scope. The material loading or unloading can be quickly realized by adopting the adjusting mechanism, the material loading or unloading can be operated by one person, the time and the labor are saved, the assistance of other manpower is not needed, the labor cost is low, and the loading and unloading efficiency is high. Realize clamping mechanism 2's quick location through first stop gear, be convenient for adjust, work efficiency is high.

In an embodiment, the first tray includes a flat plate 11 and fixing frames 12 respectively disposed at left and right sides of the flat plate 11, the lower end of the rotating rod 22 of each linkage assembly is rotatably connected to the fixing frame 12 at the same side, and two first casters 13 are correspondingly disposed below each fixing frame 12. For convenient processing and equipment, first tray adopts split type structure, for improving transport stability, sets up two first truckles 13 side by side around the below of each mount 12. It should be noted that the number and position of the first casters 13 and the structure of the first tray can also be designed according to actual requirements.

In an embodiment, the second tray includes two second sliding rods 41, a plurality of sliding sleeves 42, a plurality of second limiting mechanisms, a plurality of second pins 43 and at least one second gear rod 44, a first sliding slot 12a is provided on the fixed frame 12, the first sliding slot 12a and the sliding sleeve 42 are both in front-back sliding fit with the second sliding rods 41 and are limited by the second limiting mechanisms, the second casters 45 are connected with the sliding sleeves 42 in a one-to-one correspondence manner, each second sliding rod 41 corresponds to two sliding sleeves 42, the second gear rod 44 is inserted into the two second sliding rods 41 through the second pins 43, and a third limiting block 41b is further provided on one side of the second sliding rods 41 away from the fixed frame 12.

As shown in fig. 2, a cross section is taken along a half of the second sliding rod 41 in the width direction, the first sliding chute 12a and the second sliding rod 41 are slidably engaged in the front-back direction to achieve telescopic adjustment in the length direction, and the sliding sleeve 42 and the second sliding rod 41 are slidably engaged in the front-back direction to achieve adjustment of the position of the second caster 45, so as to adapt to the bearing of different materials. The rectangle frame on second slide bar 41 is located for the cover to this embodiment sliding sleeve 42, can be on second slide bar 41 convenient slip to drive second truckle 45 and remove the support, guarantee the stability that the material was carried, and be convenient for realize the regulation of the different length of second tray, prevent the too big rupture of stress concentration atress from appearing in second slide bar 41 simultaneously.

In an embodiment, the second limiting mechanism includes a first pin 12b and a magnetic ring 12e sleeved on the first pin 12b, the second sliding rod 41 is provided with a plurality of adjusting holes 41a, and the first pin 12b penetrates through the fixing frame 12 or the sliding sleeve 42 to be matched with the adjusting holes 41a for limiting.

Wherein, regulation hole 41a equidistance distributes on second slide bar 41, perforating hole about if regulation hole 41a, or still can be for controlling the perforating hole, the third mounting hole has been seted up to correspondence on the sliding sleeve 42, the fourth mounting hole has been seted up to correspondence on the mount 12, magnetic ring 12e cover is located on first pin 12b, if first pin 12b is the T shape, can wear to establish third mounting hole and regulation hole 41a in proper order and carry on spacingly, or wear to establish fourth mounting hole and regulation hole 41a in proper order and carry on spacingly, it can not become flexible after the fixed fit to wear to establish through magnetism messenger first pin 12b, guarantee the stability of location, the simple operation, difficult droing. It should be noted that, the second limiting mechanism may also be replaced by a screw to realize the threaded connection limiting with the adjusting hole 41 a.

In an embodiment, the rotating rod 22 is provided with a plurality of limiting rings 22a arranged side by side, one side of the fixing frame 12 away from the flat plate 11 is provided with a plurality of spring plungers 12d, and the spring plungers 12d correspond to the rotating rod 22 one by one and are matched with one limiting ring 22a for limiting.

Wherein, adjust the transport with the not unidimensional material of adaptation through dwang 22 from top to bottom and realize first shelves pole 21, and dwang 22 still can play and separate the fender effect and guarantee the stability that the material was carried. Like this embodiment, the lower rod portion of dwang 22 is seted up to spacing ring 22a, promptly with the corresponding pole portion of being connected of mount 12, thereby realizes the fixed of direction of height through the spring plunger 12d on the mount 12 and spacing ring 22a cooperation spacing, the quick adjustment of being convenient for. The lower end of the rotating rod 22 is also provided with a second limiting block 22b for mechanical limiting, so that the rotating rod 22 is prevented from slipping. It should be noted that, the number of the limiting rings 22a and the rotating rods 22 may be any, and a part of the limiting rings 22a may also be provided, and the spring plungers 12d are correspondingly provided, which may be specifically adjusted according to actual requirements.

In an embodiment, the fixing frame 12 further has a plurality of first notches 12c, the first notches 12c are flared openings with outward openings and correspond to the rotating rods 22 one by one, and when the first blocking rods 21 are rotated to the outside, the rotating rods 22 are moved downward and adjusted to a position where the middle rod portion is flush with the upper side of the fixing frame 12. First notch 12c is for dodging the groove, and the upside parallel and level that the dwang 22 of being convenient for moved down was adjusted to its middle pole portion (horizontal pole portion promptly) and mount 12 carries out the material and places, and dwang 22 can play the effect that supports and separate the fender simultaneously this moment. It should be noted that the first notch 12c may also have any shape.

In one embodiment, the winding support 31 includes a rotation shaft and a first stopper 32, the rotation shaft includes a handle 31c, a first shaft section 31d, a second shaft section 31e and a third shaft section 31f, which are connected in sequence, the first stopper 32 is connected with the third shaft section 31f and coaxially disposed, the diameters of the second shaft section 31e and the first stopper 32 are larger than the diameter of the third shaft section 31f, the second wire passing hole is formed in the first shaft section 31d, a plurality of first stopper holes 31b are circumferentially and uniformly distributed in the third shaft section 31f, the first stopper mechanism includes a plunger 33, a mounting seat 34 and a spring 35, the plunger 33 is sleeved in the mounting seat 34 and is axially and slidably fitted, the spring 35 is inserted in the plunger 33, two ends of the spring respectively abut against the plunger 33 and the mounting seat 34, the flat plate 11 is provided with a first mounting hole 11a and a second mounting hole 11b which is through from top to bottom, the first mounting hole 11a is located at the front side of the flat plate 11, the mounting seat 34 is connected with the first mounting hole 11a in a matching manner, and the third shaft section 31f is connected with the second mounting hole 11b in a rotating manner and is limited by the matching of the plunger 33 and the first limiting hole 31 b. Drive rope 5 through rolling support 31 and receive and release the regulation that carries out the linkage subassembly to realize the clamp of material tightly or loosen, and spacing through first stop gear's cooperation, can realize loading or unloading of material fast and transport, can be by one-man operation, labour saving and time saving need not other manpower auxiliarily, and the human cost is low, loads, unloads and transport the efficiency height.

In an embodiment, one end of the first blocking lever 21 close to the adjusting mechanism 3 is provided with a first wire passing hole 21a, and two ends of the rope 5 are respectively connected with the first wire passing holes 21a of the two first blocking levers 21 in a penetrating manner. The structure is simple, the installation and the replacement of the rope 5 are convenient, or at least one hanging ring can be arranged on the first stop lever 21 and is used for connecting the rope 5 and binding other spare ropes.

In one embodiment, a handle 14 is also mounted on the first tray. Being convenient for operating personnel push-and-pull and realizing the transportation, handle 14 locates the front side top of first tray, and for the handle of falling the U-shaped like this embodiment, both ends are connected with first tray respectively. It should be noted that the handle may also be any structure known in the art.

In one embodiment, rubber plates are further mounted on the first tray and the second tray. The rubber slab can improve frictional force when the transportation material, guarantees to carry stability, has the removal shock attenuation effect simultaneously, prevents to knock down the material surface. The upper surface parallel and level of the rubber sheet on the first tray and the second tray are optimized, so that the materials can be placed conveniently, or the arrangement of the rubber sheet can be adjusted according to actual requirements.

The working principle is as follows: during the use, extract each first pin 12b and second pin 43 earlier, length slide adjusting according to transported substance extends the platform 4 after, wear to establish mount 12 with regulation hole 41a cooperation with first pin 12b again and spacing messenger extends platform 4 fixed, later remove sliding sleeve 42 and drive second truckle 45 and remove, make second truckle 45 be located suitable support position, wear to establish sliding sleeve 42 with first pin 12b again and adjust hole 41a cooperation spacing messenger second truckle 45 fixed, thereby guarantee to support steadily. And then the second gear lever 44 is adjusted to a proper position according to the length of the material, and then the second gear lever 44 is inserted and connected with the second sliding rod 41 through the second pin 43, and the second gear lever 44 is used for carrying the end of the material to ensure that the end of the material cannot be broken or abraded. Dwang 22 is adjusted from top to bottom according to the height of transported substance material, and it is spacing with spacing 22 a's cooperation through spring plunger 12d, place the material back on the tray, outside pulling first stop gear's plunger 33 makes it break away from first spacing hole 31b, thereby rotate the handle of adjustment mechanism 3 and realize the rolling of rope 5 and then drive the synchronous control of two linkage subassemblies, realize that the self-adaptation of material is pressed from both sides tightly, it is spacing to loosen plunger 33 and make its and the first spacing hole 31b cooperation of rolling support 31 after rotating to target in place, can accomplish the material and load, furtherly, still can be through the stability and the fastness that increase rope reinforcing structure, if bind on first shelves pole 21 and the first slide bar 23 of rope winding both sides. When unloading, loosen the rope of binding on first shelves pole 21 and first slide bar 23 earlier, then outside pulling first stop gear's plunger 33 makes it break away from first spacing hole 31b, thereby rotate the handle of adjustment mechanism 3 and loosen rope 5, can adjust according to actual demand and loosen the degree, can block the material again and make it can not the slippage when being convenient for carry the material, avoid leading to personal safety and material damage, it is spacing to loosen plunger 33 and make it and the first spacing hole 31b cooperation of rolling support 31 spacing when rotating to target in place, can unload the material and transport, safety and stability and efficiency among the transportation process are improved greatly. When not in use, the utility model can be accommodated by adjusting to the minimum size, thereby greatly reducing the occupied area.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express the more specific and detailed embodiments described in the present application, but not be construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.