Chemical material trolley with bearing area capable of being increased

Abstract

A chemical material trolley with the bearing area capable of being increased comprises a trolley body, a connecting plate, a handrail frame, a plurality of wheels, two extension plates and two pairs of bearing adjusting mechanisms, the upper side face of the trolley body is sunken downwards to form a bearing space, one long edge side of the connecting plate is fixedly combined with one short edge side of the trolley body, and the handrail frame is fixedly arranged on the upper side face of the connecting plate. The wheels are arranged on the lower portion of the vehicle body, a containing space penetrating through the two opposite long side edges of the vehicle body is horizontally formed in the portion, below the bearing space, of the vehicle body, the long side edges are provided with containing openings, and the extension plates are arranged on the outer sides of the long side edges and can be contained in the containing space through the containing openings. The bearing adjusting mechanism is arranged on the long edge side and movably connected with the extension plate on the same side so as to control the extension plate to be unfolded or folded. Therefore, the carrying area of the chemical material trolley can be flexibly adjusted according to the area, the volume or the number of materials needing to be carried, so that the transportation requirements of different chemical materials are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical material transportation, particularly to a chemical material handcart with an expandable loading area. BACKGROUND

[0002] In chemical production, it is often necessary to transfer and transport small amounts of chemical materials or material residues. At this time, simple transport carriers such as hand carts can be used to complete the transportation task. However, for materials or residues with large areas or volumes, such as large-area and sheet-shaped furnace scale or block-shaped residues generated after reaction, it is difficult to load them into the transport vehicle body using ordinary manual transport carriers. At this time, it is often necessary to crush the large-area or large-volume materials or residues, which greatly increases the labor and material costs. Therefore, how to provide a manual transport carrier that can meet the transportation operation of large-area or large-volume materials or residues has become one of the technical problems to be solved in the field. SUMMARY

[0003] The technical problem to be solved by the present technical solution is how to provide a manual transport carrier with a loading area that can be flexibly adjusted according to the area, volume, or quantity of the materials to be transported.

[0004] In order to solve the above technical problems, the technical scheme provides a chemical material handcart with an increased bearing area, which comprises a vehicle body, a connecting plate, a handrail, a plurality of wheels, two extension plates and two pairs of bearing adjustment mechanisms, wherein the upper side of the vehicle body is concave downward to form a bearing space with an open upper part, the connecting plate is horizontally arranged and one long side thereof is fixedly combined with one short side of the vehicle body, the handrail is fixedly arranged on the upper side of the connecting plate, the plurality of wheels are uniformly arranged on the lower part of the vehicle body, the part of the vehicle body below the bearing space is horizontally provided with a receiving space penetrating through the two opposite long sides of the vehicle body, and the two opposite long sides of the vehicle body are respectively provided with receiving openings communicating with the receiving space, the two extension plates are horizontally arranged on the outer sides of the two opposite long sides of the vehicle body and can be respectively received into the receiving space through the two receiving openings, and the two pairs of bearing adjustment mechanisms are arranged on the two opposite long sides of the vehicle body, and each pair of bearing adjustment mechanisms is movably connected with the extension plate on the same side to control the extension plate to be unfolded or retracted. Accordingly, when the chemical material handcart is used, if only small pieces or granular materials need to be transported, the bearing space on the upper part of the vehicle body can be used to meet the ordinary transportation needs, and if sheet-shaped or block-shaped materials with a large area or a large volume need to be transported and the space area of the bearing space cannot meet the storage needs, the two extension plates can be pulled out from the receiving openings on the two opposite long sides of the vehicle body and connected and arranged on the bearing adjustment mechanisms to increase the area of the bearing area on the upper part of the vehicle body, so that the chemical material handcart can meet the transportation needs of different materials such as small pieces, granules, large-area sheets or large-volume blocks.

[0005] As another implementation of the technical solution, each pair of bearing adjustment mechanisms includes two bearing adjustment mechanisms, each of which is mainly composed of a connecting rod, a supporting rod, a fixed part, and an adjustment part. The connecting rod is vertically arranged beside the side end of the receiving opening, and the upper and lower ends of the connecting rod are fixedly combined with the side wall of the long side of the vehicle body. The supporting rod is arranged obliquely, and its lower end is rotatably sleeved on the lower end of the connecting rod through a bearing. The upper end of the supporting rod is provided with the fixed part. The adjustment part is arranged on the other side of the connecting rod relative to the receiving opening adjacent to the lower end of the supporting rod, and is drivingly connected with the lower end of the supporting rod. The two sides of the opposite side ends of the two extension plates are provided with limiting connecting parts. After the extension plate is pulled out of the receiving space, it is movably connected to the corresponding connecting rod through the limiting connecting part, so that the extension plate can move along the vertical direction of the connecting rod. When the extension plate moves to the upper end of the connecting rod, the upper side of the extension plate is flush with the upper side of the vehicle body. The supporting rod is driven by the adjustment part to move horizontally around the lower end as the axis, so that the fixed part is fixedly combined with the lower side of the extension plate. Accordingly, the extension plate can be conveniently stored and assembled. Moreover, the supporting strength of the extension plate can be improved by the support of the supporting rod and the connection of the limiting connecting part and the connecting rod, so that the extension plate can assist in bearing part of the material or the weight of the local material.

[0006] As another implementation of the technical solution, the adjustment part is composed of a worm gear, a worm, and a handle. The worm gear is fixedly combined with the lower end of the supporting rod and is rotatably sleeved on the lower end of the connecting rod through a bearing. The worm is horizontally arranged on the other side of the connecting rod relative to the receiving opening and is engaged with the worm gear. The end of the worm close to the vehicle body is rotatably combined with the vehicle body through another bearing. The end of the worm away from the vehicle body is combined with the handle. Accordingly, the position of the supporting rod can be easily adjusted and fixed.

[0007] As another implementation of the technical solution, the supporting rod is sequentially connected by a first horizontal section, an inclined section, and a second horizontal section. One end of the first horizontal section has a sleeve hole. The worm gear is fixedly combined with the lower part of the one end of the first horizontal section in a sleeved manner. The first horizontal section is fixedly sleeved on the outer ring of the bearing together with the worm gear through the sleeve hole. One end of the second horizontal section has a threaded hole. The fixed part is a bolt. The lower side of the extension plate has a bolt hole. The upper side of the second horizontal section can be attached to the lower side of the extension plate, and the threaded hole is located opposite to the bolt hole. The second horizontal section and the extension plate are fixedly combined by screwing the bolt into the threaded hole and the bolt hole. Accordingly, the upper side of the second horizontal section is attached to the lower side of the extension plate to increase the supporting area of the supporting rod on the extension plate. The arrangement of the first horizontal section also increases the supporting moment, thereby improving the carrying capacity of the extension plate.

[0008] As another implementation of the technical solution, the limiting connecting part is in the shape of a U-shaped hook and has an opening facing the corresponding connecting rod, and the two side walls of the receiving space are provided with limiting sliding grooves corresponding to the limiting connecting part. Accordingly, the limiting sliding grooves facilitate the receiving and taking operation of the extension plate, and the U-shaped hook structure of the limiting connecting part facilitates the limiting connection with the connecting rod.

[0009] As another implementation of the technical solution, a sewage pipe is arranged on the outer side of the side wall of the other short side of the vehicle body and communicates with the bearing space, and a valve is arranged on the sewage pipe. Accordingly, the cleaning liquid after cleaning the bearing space can be conveniently discharged.

[0010] As another implementation of the technical solution, a plurality of anti-skid blocks are uniformly arranged on the bottom of the bearing space. Accordingly, the bearing and fixing of the material are facilitated.

[0011] As another implementation of the technical solution, a plurality of receiving grooves are uniformly arranged on the upper side of the extension plate. Accordingly, the receiving grooves can assist in bearing small or granular materials and prevent the occurrence of scattering.

[0012] As another implementation of the technical solution, the handrail frame is composed of two vertical longitudinal rods and a horizontal transverse rod, wherein the two longitudinal rods are spaced apart by a distance and the lower ends thereof are fixedly combined with the upper side of the connecting plate, and the two ends of the transverse rod are fixedly combined with the upper ends of the two longitudinal rods. Accordingly, the pushing and pulling operation of the vehicle body by the operator is facilitated.

[0013] As another implementation of the technical solution, the number of wheels is three, including two bearing wheels and one direction wheel, and the direction wheel is rotatably arranged on the lower part of the connecting plate, and the two bearing wheels are respectively arranged on the lower parts of the two opposite long sides of the vehicle body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic view of the chemical material handcart with an increased bearing area according to the present application;

[0015] Figure 2 It is a structural schematic view of the bearing adjusting mechanism in the present application;

[0016] Figure 3 It is a partial structural schematic view of the extension plate in the present application;

[0017] Figure 4 It is a combined structural schematic view of the vehicle body, the connecting plate and the handrail frame in the present application.

[0018] Explanation of symbols in the drawings:

[0019] 1 vehicle body; 11 carrying space; 111 anti-skid block; 12 storage space; 121 storage opening; 1211 limiting sliding groove; 2 connecting plate; 3 handrail; 31 vertical rod; 32 horizontal rod; 4 wheel; 5 extension plate; 51 limiting connecting part; 52 storage groove; 6 carrying adjusting mechanism; 61 connecting rod; 62 supporting rod; 621 first horizontal section; 622 inclined section; 623 second horizontal section; 63 fixing part; 64 adjusting part; 641 worm gear; 642 worm shaft; 643 handle; 7 drain pipe; 71 valve. DETAILED DESCRIPTION

[0020] The detailed description and technical content of the present application are described below in conjunction with the drawings, however, the drawings are provided for reference and illustration only, and are not intended to limit the present application.

[0021] In the context of the present specification, any two or more embodiments of the present application can be combined arbitrarily, and the technical solutions formed thereby are part of the original disclosure of the present specification and also fall within the protection scope of the present application.

[0022] As Figure 1As shown, it is a schematic diagram of a specific embodiment of the chemical material handcart with loadable bearing area. The chemical material handcart with loadable bearing area (hereinafter referred to as chemical material handcart) comprises a vehicle body 1, a connecting plate 2, a handrail frame 3, a plurality of wheels 4, two extension plates 5 and two pairs of bearing adjusting mechanisms 6, wherein the upper side of the vehicle body 1 is concave downward to form a bearing space 11 with an open upper part, the connecting plate 2 is horizontally arranged and one long side is fixedly combined with one short side of the vehicle body 1, the handrail frame 3 is fixedly arranged on the upper side of the connecting plate 2, the plurality of wheels 4 are evenly arranged on the lower part of the vehicle body 1, the horizontal part of the vehicle body 1 below the bearing space 11 is provided with a storage space 12 penetrating through the two opposite long sides of the vehicle body 1, and the two opposite long sides of the vehicle body 1 are respectively provided with a storage opening 121 communicating with the storage space 12, the two extension plates 5 are horizontally arranged on the outer sides of the two opposite long sides of the vehicle body 1 and can be respectively retracted into the storage space 12 through the two storage openings 121, and the two pairs of bearing adjusting mechanisms 6 are arranged on the two opposite long sides of the vehicle body 1, and each pair of bearing adjusting mechanisms 6 is movably connected with the extension plate 5 on the same side to control the extension or retraction of the extension plate 5. When the chemical material handcart is used to transport chemical materials or material residues (collectively referred to as materials), if only small pieces or granular materials are transported, only the bearing space 11 on the upper part of the vehicle body 1 can be used to hold the materials to meet the ordinary transportation needs; if large-area or large-volume sheet or block materials need to be transported and the space area of the bearing space 11 cannot meet the holding needs, the two extension plates 5 can be pulled out from the storage openings 121 on the two opposite long sides of the vehicle body 1 and connected and arranged on the bearing adjusting mechanisms 6 to increase the area of the bearing area on the upper part of the vehicle body 1. When holding large-area or large-volume materials, it should be noted that due to the limitation of the bearing capacity of the extension plate 5, it can only assist in bearing the local weight of the large-area or large-volume materials, so the main gravity center of the large-area or large-volume materials needs to be held in the bearing space 11, and the extended part of the materials is held on the extension plate 5. Through the above operation, the chemical material handcart can meet the transportation needs of different materials such as small pieces, granules, large-area sheets or large-volume blocks.

[0023] Specifically, in combination with Figure 2As shown, each pair of load adjustment mechanisms 6 includes two load adjustment mechanisms 6, each of which is mainly composed of a connecting rod 61, a supporting rod 62, a fixing part 63, and an adjustment part 64. The connecting rod 61 is vertically arranged beside the side end of the receiving opening 121, and the upper and lower ends of the connecting rod 61 are fixedly combined with the side wall of the long side of the vehicle body 1. The supporting rod 62 is obliquely arranged, and the lower end thereof is rotatably sleeved on the lower end of the connecting rod 61 through a bearing (not shown in the figure). The upper end of the supporting rod 62 is provided with the fixing part 63. The adjustment part 64 is arranged on the connecting rod 61 opposite to the lower end of the supporting rod 62 relative to the other side of the receiving opening 121, and is drivingly connected with the lower end of the supporting rod 62. In combination Figure 3 As shown, the two extension plates 5 are provided with limiting connecting parts 51 on both sides of the opposite side ends thereof. After the extension plate 5 is pulled out from the receiving space 12, it is movably and limitingly connected to the corresponding connecting rod 61 through the limiting connecting part 51, so that the extension plate 5 can move along the vertical direction of the connecting rod 61. When the extension plate 5 moves to the upper end of the connecting rod 61, so that the upper side of the extension plate 5 is flush with the upper side of the vehicle body 1, the supporting rod 62 is driven by the adjustment part 64 to move horizontally around the lower end thereof, so that the fixing part 63 is fixedly combined with the lower side of the extension plate 5, thereby achieving the convenient storage and assembly of the extension plate 5. Through the support of the supporting rod 62 and the connection of the limiting connecting part 51 and the connecting rod 61, the load-bearing structural strength of the extension plate 5 can be improved, so that the extension plate 5 can assist in bearing part of the material or the local weight of the whole material.

[0024] Further, the adjustment part 64 is composed of a worm gear 641, a worm shaft 642, and a handle 643. The worm gear 641 is fixedly combined with the lower end of the supporting rod 62 and is rotatably sleeved on the lower end of the connecting rod 61 through a bearing. The worm shaft 642 is horizontally arranged on the other side of the connecting rod 61 relative to the receiving opening 121 and is engaged with the worm gear 641. The end of the worm shaft 642 close to the vehicle body 1 is rotatably combined with the vehicle body 1 through another bearing (not shown in the figure). The end of the worm shaft 642 away from the vehicle body 1 is combined with the handle 643. Thus, the handle 643 can be rotated to adjust and fix the position of the supporting rod 62.

[0025] Further, the support rod 62 is sequentially connected by a first horizontal section 621, an inclined section 622 and a second horizontal section 623, wherein one end of the first horizontal section 621 has a sleeve hole (not labeled in the figure), the worm gear 641 is fixedly combined with the lower part of the one end of the first horizontal section 621 by aligning with the sleeve hole, the first horizontal section 621 is fixedly sleeved on the outer ring of the bearing together with the worm gear 641 through the sleeve hole, one end of the second horizontal section 623 has a threaded hole (not labeled in the figure), the fixing part 63 is a bolt, the lower side of the extension plate 5 has a bolt hole (not labeled in the figure), the upper side of the second horizontal section 623 can be attached to the lower side of the extension plate 5 and the threaded hole is aligned with the bolt hole, and the second horizontal section 623 is fixedly combined with the extension plate 5 by being screwed and fastened in the threaded hole and the bolt hole. Thus, the upper side of the second horizontal section 623 is attached to the lower side of the extension plate 5 to increase the support area of the support rod 62 on the extension plate 5, and the arrangement of the first horizontal section 621 can also increase the support moment, thereby improving the carrying capacity of the extension plate 5.

[0026] Further, the limiting connection part 51 is in the shape of a U-shaped hook body and has an opening facing the corresponding connecting rod 61, and the connecting rod 61 is fixedly combined with the limiting connection part 51 by being inserted into the opening. Figure 4 As shown, the two side walls of the accommodation space 12 are provided with limiting sliding grooves 1211 corresponding to the limiting connection part 51, and the limiting sliding grooves 1211 facilitate the accommodation and use operation of the extension plate 5, and the structure of the U-shaped hook body of the limiting connection part 51 facilitates the limiting connection with the connecting rod 61.

[0027] In the specific embodiment, the side wall outside the other short side of the vehicle body 1 is further connected with a sewage pipe 7 communicating with the carrying space 11, and a valve 71 is further arranged on the sewage pipe 7, thereby facilitating the sewage operation of the cleaning liquid after cleaning the carrying space 11. The bottom of the carrying space 11 is further uniformly provided with a plurality of anti-skid blocks 111, and the upper side of the extension plate 5 is further uniformly provided with a plurality of accommodation grooves 52, the arrangement of the anti-skid blocks 111 facilitates the carrying and fixing of the materials, and the arrangement of the accommodation grooves 52 can assist the carrying of small block or granular materials and prevent the occurrence of scattering. In addition, the handrail frame 3 can be composed of two vertical longitudinal rods 31 and a horizontal transverse rod 32, the two longitudinal rods 31 are spaced apart by a distance and the lower ends thereof are fixedly combined with the upper side of the connecting plate 2, and the two ends of the transverse rod 32 are fixedly combined with the upper ends of the two longitudinal rods 31, thereby facilitating the pushing and pulling operation of the vehicle body 1 by the operator. The number of the wheels 4 can be three, including two carrying wheels and one direction wheel, and the direction wheel is arranged to be steerable at the lower part of the connecting plate 2, and the two carrying wheels are respectively arranged at the lower parts of the two opposite long sides of the vehicle body 1.

[0028] The above merely is the preferred embodiment of the present utility model, and is not used to limit the patent range of the present utility model, and other equivalent changes made by using the patent concept of the present utility model should all belong to the patent protection range of the present utility model.

Claims

1. A load area expandable chemical material handcart comprising: A vehicle body, a connecting plate, a handrail frame and a plurality of wheels, the upper side of the vehicle body is concave downward to form a load bearing space with an open upper part, the connecting plate is horizontally arranged and one long side is fixedly combined with one short side of the vehicle body, the handrail frame is fixedly arranged on the upper side of the connecting plate, and the plurality of wheels are evenly arranged on the lower part of the vehicle body, characterized in that it further comprises two extension plates and two pairs of load bearing adjustment mechanisms, a receiving space is horizontally arranged on the part of the vehicle body below the load bearing space and penetrates through the two opposite long sides of the vehicle body, and each of the two opposite long sides of the vehicle body has a receiving opening communicating with the receiving space, the two extension plates are horizontally arranged on the outer sides of the two opposite long sides of the vehicle body and can be respectively retracted into the receiving space through the two receiving openings, and the two pairs of load bearing adjustment mechanisms are respectively arranged on the two opposite long sides of the vehicle body and are movably connected with the extension plates on the same side to control the extension or retraction of the extension plates.

2. The chemical material cart of claim 1, wherein, Each pair of load bearing adjustment mechanisms comprises two load bearing adjustment mechanisms, each of which is mainly composed of a connecting rod, a supporting rod, a fixing part and an adjustment part, the connecting rod is vertically arranged beside the side end of the receiving opening and the upper and lower ends of the connecting rod are fixedly combined with the side wall of the long side of the vehicle body, the supporting rod is obliquely arranged and the lower end of the supporting rod is rotatably sleeved on the lower end of the connecting rod through a bearing, the upper end of the supporting rod is provided with the fixing part, the adjustment part is arranged on the other side of the connecting rod relative to the receiving opening adjacent to the lower end of the supporting rod, and the adjustment part is drivingly connected with the lower end of the supporting rod, the two extension plates are provided with limiting connection parts on both sides of the opposite side ends, the extension plates are movably connected with the corresponding connecting rods through the limiting connection parts after being pulled out of the receiving space, so that the extension plates can move along the vertical direction of the connecting rod, and when the extension plates move to the upper end of the connecting rod so that the upper side of the extension plates is flush with the upper side of the vehicle body, the supporting rod is driven by the adjustment part to move horizontally with the lower end as the axis, so that the fixing part is fixedly combined with the lower side of the extension plate.

3. The chemical material cart of claim 2, wherein, The adjustment part is composed of a worm gear, a worm and a handle, the worm gear is fixedly combined with the lower end of the supporting rod and is rotatably sleeved on the lower end of the connecting rod through a bearing, the worm is horizontally arranged on the other side of the connecting rod relative to the receiving opening and is engaged with the worm gear, the end of the worm close to the vehicle body is rotatably combined with the vehicle body through another bearing, and the end of the worm away from the vehicle body is combined with the handle.

4. The chemical material cart of claim 3, wherein, The support rod is sequentially connected by a first horizontal section, an inclined section and a second horizontal section. One end of the first horizontal section has a sleeve hole. The worm gear is fixedly combined with the lower part of one end of the first horizontal section by positioning the sleeve hole. The first horizontal section and the worm gear are fixedly sleeved on the outer ring of a bearing through the sleeve hole. One end of the second horizontal section has a threaded hole. The fixing part is a bolt. The lower side of the extension plate has a bolt hole. The upper side of the second horizontal section can be attached to the lower side of the extension plate and make the threaded hole positioned in the bolt hole. The second horizontal section and the extension plate are fixedly combined by tightly screwing the bolt in the threaded hole and the bolt hole.

5. The chemical material cart of claim 2, wherein, The limiting connecting part is in the shape of a U-shaped hook and has an opening facing the corresponding connecting rod. The two side walls of the receiving space are provided with limiting sliding grooves corresponding to the limiting connecting part.

6. The chemical material cart of claim 1, wherein, The outer side of the side wall of the other short side of the vehicle body is provided with a sewage pipe communicating with the bearing space, and a valve is arranged on the sewage pipe.

7. The chemical material cart of claim 1, wherein, The bottom of the bearing space is uniformly provided with a plurality of anti-skid blocks.

8. The chemical material cart of claim 1, wherein, The upper side of the extension plate is uniformly provided with a plurality of receiving grooves.

9. The chemical material cart of claim 1, wherein, The handrail frame is composed of two vertical longitudinal rods and a horizontal transverse rod. The two longitudinal rods are spaced apart by a distance and their lower ends are fixedly combined with the upper side of the connecting plate. The two ends of the transverse rod are fixedly combined with the upper ends of the two longitudinal rods.

10. The chemical material cart of claim 1, wherein, The number of the wheels is three, including two bearing wheels and one direction wheel. The direction wheel is rotatably arranged on the lower part of the connecting plate. The two bearing wheels are respectively arranged on the lower parts of the two opposite long sides of the vehicle body.

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