Self-locking bearing trolley with good stability

Abstract

The utility model relates to a self-locking bearing trolley with good stability, which comprises a bearing plate, a handrail mounted on one side of the upper surface of the bearing plate, two directional wheels mounted on one side, close to the handrail, of the bottom of the bearing plate, two second universal wheels mounted on one side, far away from the handrail, of the bottom of the bearing plate, and a hydraulic cylinder mounted on one side, close to the handrail, of the bottom of the bearing plate. A lifting plate is arranged at the end of the telescopic end of the hydraulic cylinder, friction blocks are installed at the two ends of the lifting plate in the length direction and arranged on the outer sides of the directional wheels in a sleeving mode, and first universal wheels are installed on the two sides of the bearing plate in the width direction through telescopic mechanisms. The hydraulic cylinder drives the lifting plate to descend, so that the friction block can be pressed on the outer surface of the directional wheel, the purpose of self-locking parking is achieved by increasing the friction force between the friction block and the directional wheel, the trolley does not need to be controlled to slow down and stop manually, the operation difficulty is reduced, the trolley can be stopped in time, and safety accidents are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bearing trolley technical field, concretely is a self locking bearing tolly with good stability. BACKGROUND

[0002] The bearing trolley is a kind of manually operated cart designed for carrying goods, it is usually equipped with solid bearing platform and handrail facilitating manual pushing. This trolley can easily carry and move heavy objects, and is widely used in warehouses, factories, supermarkets and homes and other places needing to carry goods, greatly improving the carrying efficiency and convenience.

[0003] The bearing trolley currently mainly adopts four-wheel configuration, and the common combination mode is the combination of directional wheels and universal wheels. However, the bottom of the existing bearing trolley is often not provided with a self-locking mechanism, and human power is needed to control the trolley to slow down and stop during movement. This not only increases the difficulty of operation, but also easily causes safety accidents, and if the goods are unbalanced on the bearing trolley, side tipping may occur during operation, and the stability is insufficient. SUMMARY

[0004] The utility model aims at providing a self locking bearing trolley with good stability, which effectively solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme.

[0006] A self locking bearing trolley with good stability, comprising a bearing plate, a handrail is installed on one side of the upper surface of the bearing plate, two directional wheels are installed on one side of the bottom of the bearing plate close to the handrail, two second universal wheels are installed on one side of the bottom of the bearing plate away from the handrail, a hydraulic cylinder is installed on one side of the bottom of the bearing plate close to the handrail, a lifting plate is provided at the end of the extension end of the hydraulic cylinder, friction blocks are installed at both ends of the length direction of the lifting plate, and the friction blocks are sleeved on the outside of the directional wheels, first universal wheels are installed on both sides of the width direction of the bearing plate through telescopic mechanisms, and the bottom of the first universal wheels and the bottom of the directional wheels are located on the same horizontal line.

[0007] Therefore, the lifting plate is lowered by the hydraulic cylinder, so that the friction blocks can be pressed tightly on the outer surface of the directional wheels, the friction between them is increased, and the purpose of self locking parking is achieved, without relying on human power to control the trolley to slow down and stop, thereby reducing the operation difficulty, and the trolley can be stopped in time to avoid safety accidents, and the first universal wheels can be extended outward from the side through the telescopic mechanism, thereby improving the stability of the whole trolley and effectively preventing side tipping.

[0008] Further, the telescopic mechanism comprises a fixed sleeve plate installed at the bottom of the bearing plate, a lengthening plate is slidably installed in the fixed sleeve plate, and the first universal wheel is installed at the lower surface of the end of the lengthening plate, the lower surface of the lengthening plate is provided with screw holes, and the lower surface of the fixed sleeve plate is provided with bolts matched with the screw holes.

[0009] Further, the end of the telescopic end of the hydraulic cylinder is provided with a top plate, the lower surface of the top plate is provided with a telescopic rod, the end of the telescopic rod is connected with the lifting plate, the outer surface of the telescopic rod is provided with a spring, and the two ends of the spring are respectively abutted with the top plate and the lifting plate.

[0010] Further, the lower surface of the bearing plate is provided with two guide rods near one side of the handrail, and the inner portion of the lifting plate is provided with two linear bearings which are slidably installed on the outer surface of the guide rods.

[0011] Further, the outer surface of the handrail is provided with a control switch which is electrically connected with the hydraulic cylinder.

[0012] Further, the number of the screw holes is at least two and is distributed along the length direction of the lengthening plate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a lifting plate is driven to descend by a hydraulic cylinder, so that the friction block can be pressed on the outer surface of the directional wheel, the friction between the two is increased, and the purpose of self-locking parking is realized, so that the trolley can be stopped without relying on manpower, the operation difficulty is reduced, and the trolley can be stopped in time, and safety accidents are avoided.

[0015] 2. The utility model discloses a lengthening plate is drawn out from the fixed sleeve plate, then the bolt is screwed into the screw hole to fix the lengthening plate, so that the first universal wheel can provide stable horizontal supporting force for the bearing plate, and the stability of goods carrying is guaranteed. DRAWINGS

[0016] Figure 1 It is one of the whole structure perspective schematic views of the utility model;

[0017] Figure 2 It is the second whole structure perspective schematic view of the utility model;

[0018] Figure 3 It is the local structure schematic view of the utility model;

[0019] Figure 4 It is the sectional structure schematic view of the friction block in the utility model.

[0020] In the figure: 100, bearing plate; 101, handrail; 102, directional wheel; 103, hydraulic cylinder; 104, lifting plate; 105, friction block; 106, first universal wheel; 107, second universal wheel; 200, telescopic mechanism; 201, fixed sleeve plate; 202, extension plate; 203, screw hole; 204, bolt; 300, top plate; 301, telescopic rod; 302, spring; 400, guide rod; 401, linear bearing; 500, control switch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] In the description of the embodiments of the utility model, it should be explained that, unless explicitly specified and limited, the terms "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, or non-detachable connection, can be direct connection, or indirect connection through intermediate medium. In addition, "communication" can be direct communication, or indirect communication through intermediate medium. Among them, "fixing" means connecting with each other and the relative position relationship after connection does not change. The orientation terms mentioned in the embodiments of the utility model, for example, "inner", "outer", "top", "bottom" and the like, are only the direction of the drawings, therefore, the orientation terms used are for better, clearer description and understanding of the embodiments of the utility model, and are not indicative or implied that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the embodiments of the utility model.

[0023] In the embodiments of the utility model, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features.

[0024] Please refer to Figures 1-4The utility model provides a self -locking bearing dolly with good stability, including bearing plate 100, the side of bearing plate 100 upper surface is installed with handrail 101, bearing plate 100 bottom is installed with two directional wheel 102 near handrail 101's side, bearing plate 100 bottom is installed with two second universal wheel 107 far from handrail 101's side, bearing plate 100 bottom is installed with hydraulic cylinder 103 near handrail 101's side, the end of hydraulic cylinder 103 telescopic end is provided with lifting plate 104, and both ends of lifting plate 104 length direction are all installed with friction block 105, and friction block 105 is set up in the outside of directional wheel 102, and both sides of bearing plate 100 width direction are all installed with first universal wheel 106 through telescopic mechanism 200, and the bottom of first universal wheel 106 and the bottom of directional wheel 102 are located on the same horizontal line.

[0025] Put goods on bearing plate 100, push handrail 101 can drive dolly to move, when needing to stop in the moving process, can start hydraulic cylinder 103, and hydraulic cylinder 103 drives lifting plate 104 to descend, and lifting plate 104 drives the friction block 105 at both ends to be pressed on directional wheel 102 simultaneously, by increasing the friction between directional wheel 102, so directional wheel 102 can stop rotating, and the purpose of parking is realized, and first universal wheel 106 is extended to the side of bearing plate 100 through telescopic mechanism 200, so that first universal wheel 106 provides lateral support force for bearing plate 100, thereby the stability of the whole bearing dolly can be increased greatly, avoid the situation of side turning due to unbalanced goods, improve the stability of goods handling.

[0026] Specifically, telescopic mechanism 200 includes fixed sleeve plate 201 installed at the bottom of bearing plate 100, the inside of fixed sleeve plate 201 is slidably installed with extension plate 202, and first universal wheel 106 is installed at the lower surface of the end of extension plate 202, the lower surface of extension plate 202 is provided with screw hole 203, and the lower surface of fixed sleeve plate 201 is installed with screw bolt 204 matched with screw hole 203, by pulling out extension plate 202 from fixed sleeve plate 201 outward, then screw bolt 204 is screwed into screw hole 203 to fix extension plate 202, so that first universal wheel 106 can provide stable lateral support force for bearing plate 100, and the stability of goods handling is ensured.

[0027] Specifically, the end of the telescopic end of the hydraulic cylinder 103 is provided with a top plate 300, the lower surface of the top plate 300 is provided with a telescopic rod 301, and the end of the telescopic rod 301 is connected with the lifting plate 104, the outer surface of the telescopic rod 301 is sleeved with a spring 302, and the two ends of the spring 302 are respectively abutted with the top plate 300 and the lifting plate 104, in order to avoid that the goods are dropped from the bearing plate 100 due to inertia caused by sudden stopping, when the hydraulic cylinder 103 is started, the telescopic end will first drive the top plate 300 to compress the spring 302, and the friction block 105 is driven to press on the directional wheel 102 through the elastic force of the spring 302, and as the top plate 300 gradually descends, the spring 302 is continuously compressed, and the pressure applied by the friction block 105 on the directional wheel 102 is gradually increased until the telescopic rod 301 is completely retracted, at this time, the thrust of the hydraulic cylinder 103 can be fully applied to the directional wheel 102, so that when parking, it is a process of continuously increasing the friction, thereby avoiding the goods from falling due to sudden stopping.

[0028] Specifically, the lower surface of the bearing plate 100 is provided with two guide rods 400 near one side of the handrail 101, and the inside of the lifting plate 104 is provided with two linear bearings 401, and the linear bearings 401 are slidingly installed on the outer surfaces of the guide rods 400, through the arrangement of the guide rods 400 and the linear bearings 401, the limiting effect on the lifting plate 104 can be improved, so that the lifting plate 104 is more stable and smooth during lifting, and the structural strength of the lifting plate 104 is enhanced, and the service life thereof is improved.

[0029] Specifically, the outer surface of the handrail 101 is provided with a control switch 500, and the control switch 500 is electrically connected with the hydraulic cylinder 103, through the installation of the control switch 500 on the handrail 101, the parking operation can be conveniently and immediately performed during the movement of pushing the bearing trolley.

[0030] Specifically, the number of the screw holes 203 is at least two and is distributed along the length direction of the extension plate 202, through the arrangement of the plurality of screw holes 203, the distance of the outward extension of the first universal wheel 106 can be adjusted, so that the operation in some narrow space can be adapted, and the use is more flexible, and the number of the screw holes 203 can be two, three, four or the like.

[0031] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A self-locking carrying trolley with good stability, comprising a carrying plate (100), characterized in that: a handrail (101) is mounted on one side of the upper surface of the carrying plate (100), two directional wheels (102) are mounted on the bottom of the carrying plate (100) near the side of the handrail (101), two second universal wheels (107) are mounted on the bottom of the carrying plate (100) away from the side of the handrail (101), a hydraulic cylinder (103) is mounted on the bottom of the carrying plate (100) near the side of the handrail (101), an end of the telescopic end of the hydraulic cylinder (103) is provided with a lifting plate (104), both ends of the length direction of the lifting plate (104) are mounted with friction blocks (105), the friction blocks (105) are sleeved on the outer side of the directional wheels (102), and the bottom of the first universal wheels (106) is located on the same horizontal line as the bottom of the directional wheels (102).

2. The self-locking carrying trolley with good stability according to claim 1, characterized in that: the telescopic mechanism (200) comprises a fixed sleeve plate (201) mounted on the bottom of the carrying plate (100), a lengthening plate (202) is slidably mounted in the fixed sleeve plate (201), the first universal wheels (106) are mounted on the lower surface of the end of the lengthening plate (202), a screw hole (203) is formed in the lower surface of the lengthening plate (202), and a screw bolt (204) matched with the screw hole (203) is mounted on the lower surface of the fixed sleeve plate (201).

3. The self-locking carrying trolley with good stability according to claim 1, characterized in that: an end of the telescopic end of the hydraulic cylinder (103) is mounted with a top plate (300), a telescopic rod (301) is mounted on the lower surface of the top plate (300), an end of the telescopic rod (301) is connected with the lifting plate (104), a spring (302) is sleeved on the outer surface of the telescopic rod (301), and both ends of the spring (302) abut against the top plate (300) and the lifting plate (104) respectively.

4. The self-locking carrying trolley with good stability according to claim 1, characterized in that: two guide rods (400) are mounted on the lower surface of the carrying plate (100) near the side of the handrail (101), two linear bearings (401) are mounted in the lifting plate (104), and the linear bearings (401) are slidably mounted on the outer surface of the guide rods (400).

5. The self-locking carrying trolley with good stability according to claim 1, characterized in that: a control switch (500) is arranged on the outer surface of the handrail (101), and the control switch (500) is electrically connected with the hydraulic cylinder (103).

6. The self-locking carrying trolley with good stability according to claim 2, characterized in that: ​ ​ ​ ​ ​ The number of the screw holes (203) is at least two and is distributed along the length direction of the elongated plate (202).

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