Multifunctional trolley

Abstract

The utility model relates to the technical field of trolleys, and provides a multifunctional trolley which comprises a bottom plate, a handrail and a supporting strip are fixedly installed on the top face of the bottom plate, a placing plate is fixedly installed on the top face of the supporting strip, a mounting plate is fixedly installed on the bottom face of the bottom plate, and a rotating rod is rotationally connected to the inner side of the mounting plate. And a pulley is fixedly installed on the surface of the rotating rod, a round bar is fixedly installed at one end of the rotating rod, a positioning hole is formed in the surface of the round bar, and a positioning rod is arranged on the top face of the bottom plate in a penetrating mode. When the weight of goods exceeds a certain limit, the pulley can be automatically locked through a mechanical structure, possible movement or overturning caused by overload is prevented, the safety of goods transportation is remarkably improved, rotation of the rotating rod is effectively limited through the design that the positioning rod is inserted into the positioning hole, and therefore the pulley cannot roll, and the safety of goods transportation is improved. The design can take effect immediately when the goods are too heavy, and delay or negligence of manual monitoring and operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of trolleys, in particular to a multifunctional trolley. Background Art

[0002] A handcart is a transport vehicle that is pushed and pulled by manpower. It is the ancestor of all vehicles. Although the material handling technology of handcarts is constantly developing, handcarts are still used as an indispensable transport tool. Handcarts are widely used in production and life because they are low-cost, simple to maintain, easy to operate, and light in weight.

[0003] Publication No. CN219115485U discloses an outdoor multifunctional trolley, including a first bottom plate, a first connecting plate is fixed to the left side of the first bottom plate, and the number of the first connecting plates is two, and the second bottom plate is rotatably connected to the opposite side of the two first connecting plates, and the left side of the second bottom plate is rotatably connected to the second connecting plate, and the number of the second connecting plates is two, and the left side of the two second connecting plates is fixed with a third bottom plate. Although compared with the traditional integrated trolley, the three-way movable design of this trolley is convenient for users to fold in multiple directions, thereby greatly improving the portability outdoors. However, in this type of trolley, when the weight of the cargo exceeds the carrying capacity of the equipment, there is a lack of early warning prompts, and it is easy to move or overturn due to overloading, which poses a safety hazard during cargo transportation. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a multifunctional trolley comprises a bottom plate, a handrail and a support bar are fixedly installed on the top surface of the bottom plate, a placing plate is fixedly installed on the top surface of the support bar, a mounting plate is fixedly installed on the bottom surface of the bottom plate, a rotating rod is rotatably connected to the inner side of the mounting plate, a pulley is fixedly installed on the surface of the rotating rod, a round rod is fixedly installed on one end of the rotating rod, a positioning hole is opened on the surface of the round rod, a positioning rod is penetrated on the top surface of the bottom plate, a top block is fixedly installed on the top end of the positioning rod, and a spring is sleeved on the surface of the positioning rod.

[0006] Preferably, the positioning holes are arranged in a circumferential shape on the surface of the round rod, and the positioning rod is slidably connected to the bottom plate.

[0007] Preferably, one end of the spring is fixedly connected to the top block, and the other end of the spring is fixedly connected to the bottom plate. Here, the spring can be stably installed.

[0008] Preferably, the size of the positioning rod is matched with that of the positioning hole, and the pulleys are evenly distributed at the four corners of the bottom surface of the bottom plate.

[0009] Preferably, the support strips are made of natural rubber, and the support strips are arranged at equal distances on the top surface of the bottom plate.

[0010] Preferably, the top surface of the placement board is provided with an anti-slip mechanism, the anti-slip mechanism comprises a socket, the socket is provided on the top surface of the placement board, a plug rod is inserted into the inner wall of the socket, a pad is fixedly installed on the top of the plug rod, and a pentagonal block and a short block are fixedly installed on the top surface of the pad. Here, the goods can be prevented from slipping.

[0011] Preferably, the pentagonal blocks and the short blocks are evenly distributed on the top surface of the pad, and the material of the pentagonal blocks and the short blocks is nitrile rubber. Here, the anti-slip effect can be improved.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, when the weight of the goods exceeds a certain limit, the pulley can be automatically locked through a mechanical structure to prevent possible movement or overturning due to overloading, thereby significantly improving the safety of cargo transportation. The design of inserting the positioning rod into the positioning hole effectively limits the rotation of the rotating rod, thereby preventing the pulley from rolling. This design can take effect immediately when the goods are too heavy, avoiding delays or negligence in human monitoring and operation, and the operator can intuitively judge whether the goods are overloaded by the compression of the support bar and whether the positioning rod is inserted into the positioning hole. This instant feedback mechanism makes the operation simpler and more intuitive.

[0014] 2. The utility model significantly improves the anti-skid effect between the cargo and the pad by setting pentagonal blocks and short blocks and using nitrile rubber, a soft material with high friction, which can effectively avoid damage or safety hazards caused by sliding of the cargo during transportation. The pad is designed to be easy to replace. When the pad is damaged or severely worn, the staff can quickly and conveniently replace it without complicated tools or skills. It reduces maintenance time and cost and improves the efficiency of equipment use. At the same time, the soft nitrile rubber material can not only provide a good anti-skid effect, but also absorb shock and vibration to a certain extent, provide better protection for the cargo, and reduce possible damage during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a multifunctional trolley is provided for the utility model;

[0016] Figure 2 A side view of a multifunctional trolley is provided for the utility model;

[0017] Figure 3 A multifunctional trolley is proposed for the utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 The utility model provides an exploded view of an anti-skid mechanism in a multifunctional trolley.

[0019] Legend:

[0020] 1. Bottom plate; 2. Handrail; 3. Support bar; 4. Short block; 5. Placement plate; 6. Mounting plate; 7. Turn bar; 8. Pulley; 9. Round rod; 10. Positioning hole; 11. Positioning rod; 12. Top block; 13. Spring; 14. Socket; 15. Plug rod; 16. Pad; 17. Pentagonal block. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] See also Figure 1-4The utility model provides a technical solution: a multifunctional trolley, comprising a bottom plate 1, a handrail 2 is fixedly installed on the top surface of the bottom plate 1 by welding or bolting, and the design of the handrail 2 is convenient for the user to push the trolley. At the same time, a support bar 3 is also fixedly installed on the bottom plate 1, and the material of the support bar 3 is natural rubber, which is soft and has a certain elasticity and can play a buffering role in the process of cargo transportation. The support bars 3 are arranged at an equal distance on the top surface of the bottom plate 1 to ensure the stability of cargo placement. A placement plate 5 is fixedly installed on the top surface of the support bar 3 by bonding or bolting, and the placement plate 5 is a platform for directly placing cargo. In order to enhance the bearing capacity and service life of the placement plate 5, its material can be selected from high-strength metal materials or wear-resistant composite materials. A mounting plate 6 is fixedly installed on the bottom surface of the bottom plate 1 by welding or bolting, and the mounting plate 6 is used to install a pulley 8 and related components. The inner side of the mounting plate 6 is rotatably connected with a rotating rod 7 by a bearing or a sleeve, and this connection method allows the rotating rod 7 to rotate freely inside the mounting plate 6. A pulley 8 is fixedly mounted on the surface of the rotating rod 7. The pulley 8 is made of wear-resistant polyurethane material to ensure the smooth sliding and long-term use of the trolley. The pulleys 8 are evenly distributed at the four corners of the bottom surface of the base plate 1, providing stable support and mobility for the trolley. A round rod 9 is fixedly mounted on one end of the rotating rod 7. The round rod 9 and the rotating rod 7 can be integrally formed. Positioning holes 10 are opened on the surface of the round rod 9. The positioning holes 10 are arranged in a circular shape on the surface of the round rod 9. This design allows the positioning rod 11 to be accurately inserted into the positioning hole 10, thereby achieving the locking of the pulley 8.

[0025] See also Figure 1-4 , a positioning rod 11 is provided through the top surface of the bottom plate 1, and the size of the positioning rod 11 is adapted to the positioning hole 10. The positioning rod 11 and the bottom plate 1 are connected by sliding, and this connection method allows the positioning rod 11 to slide freely on the bottom plate 1. A top block 12 is fixedly installed on the top of the positioning rod 11. The design of the top block 12 increases the contact area with the placement plate 5, so that the positioning rod 11 can be pushed downward more effectively when the cargo is too heavy. A spring 13 is sleeved on the surface of the positioning rod 11, and one end of the spring 13 is fixedly connected to the top block 12 by hooking or welding, and the other end is also fixedly connected to the bottom plate 1 in a similar manner. The function of the spring 13 is to provide the power for the positioning rod 11 to reset. When the weight of the cargo is reduced or removed, the spring 13 can push the positioning rod 11 back to the initial position, thereby unlocking the pulley 8.

[0026] Embodiment 2

[0027] See also Figure 4, the top surface of the placement plate 5 is provided with an anti-skid mechanism, which includes a socket 14, and the socket 14 is opened on the top surface of the placement plate 5. The plug rod 15 is designed to be tightly inserted into the socket 14, and its connection method is simple and effective. The plug rod 15 can be stably fixed in the socket 14 by interference fit or by using a rubber ring to increase the friction. A pad 16 is fixedly installed on the top of the plug rod 15. The pad 16 not only provides a stable support surface for the goods, but also carries the pentagonal block 17 and the short block 4. The pentagonal block 17 and the short block 4 are firmly fixed on the top surface of the pad 16 by adhesive or hot melt technology. The pentagonal block 17 and the short block 4 are made of nitrile rubber, which is soft and has a large friction coefficient. When the goods are placed on the pad 16, the pentagonal block 17 and the short block 4 can effectively increase the friction between the goods and prevent the goods from sliding during transportation.

[0028] When the cargo is overloaded, the load plate 5 is automatically locked by the mechanical structure to prevent the load plate 8 from moving. The utility model can significantly improve the anti-skid effect between the goods and the pad 16 by setting the pentagonal block 17 and the short block 4 and adopting the soft and frictional material of nitrile rubber, which can effectively avoid the damage or safety hazard caused by sliding of the goods during transportation, and the pad 16 is designed to be easy to replace. When the pad 16 is damaged or seriously worn, the staff can quickly and conveniently replace it without complicated tools or skills. It reduces maintenance time and cost and improves the utilization efficiency of equipment. At the same time, the soft nitrile rubber material can not only provide good anti-slip effect, but also absorb shock and vibration to a certain extent, provide better protection for goods, and reduce possible damage during transportation.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A multifunctional trolley, comprising a bottom plate (1), characterized in that: The top surface of the base plate (1) is fixedly mounted with an armrest (2) and a support bar (3); the top surface of the support bar (3) is fixedly mounted with a placement plate (5); the bottom surface of the base plate (1) is fixedly mounted with a mounting plate (6); the inner side of the mounting plate (6) is rotatably connected with a rotating rod (7); a pulley (8) is fixedly mounted on the surface of the rotating rod (7); a round rod (9) is fixedly mounted on one end of the rotating rod (7); a positioning hole (10) is provided on the surface of the round rod (9); a positioning rod (11) is provided through the top surface of the base plate (1); a top block (12) is fixedly mounted on the top end of the positioning rod (11); and a spring (13) is sleeved on the surface of the positioning rod (11).

2. The multifunctional trolley according to claim 1, characterized in that: The positioning holes (10) are arranged in a circular shape on the surface of the round rod (9), and the positioning rod (11) is slidably connected to the bottom plate (1).

3. The multifunctional trolley according to claim 1, characterized in that: One end of the spring (13) is fixedly connected to the top block (12), and the other end of the spring (13) is fixedly connected to the bottom plate (1).

4. The multifunctional trolley according to claim 1, characterized in that: The size of the positioning rod (11) is adapted to that of the positioning hole (10), and the pulleys (8) are evenly distributed at the four corners of the bottom surface of the bottom plate (1).

5. The multifunctional trolley according to claim 1, characterized in that: The support strips (3) are made of natural rubber, and the support strips (3) are arranged at equal distances on the top surface of the bottom plate (1).

6. The multifunctional trolley according to claim 1, characterized in that: The top surface of the placement plate (5) is provided with an anti-slip mechanism, the anti-slip mechanism comprising an insertion hole (14), the insertion hole (14) is opened on the top surface of the placement plate (5), an insertion rod (15) is inserted into the inner wall of the insertion hole (14), a pad (16) is fixedly mounted on the top end of the insertion rod (15), and a pentagonal block (17) and a short block (4) are fixedly mounted on the top surface of the pad (16).

7. The multifunctional trolley according to claim 6, characterized in that: The pentagonal blocks (17) and the short blocks (4) are evenly distributed on the top surface of the pad (16), and the material of the pentagonal blocks (17) and the short blocks (4) is nitrile rubber.

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