Compression-resistant trolley for logistics transportation and transfer

Abstract

The utility model relates to the field of trolleys, and particularly discloses a logistics transportation and transfer compression-resistant trolley which comprises a trolley base plate, a bottom plate is installed on the lower surface of the trolley base plate, the outer side end of the bottom plate is connected with a swing arm through a rotating shaft, the end of the swing arm is connected with a compression-resistant idler wheel, and a hydraulic cylinder is connected to the upper portion of the swing arm. A parking pressing block is arranged in the storage sleeve, a reset spring is installed on the outer side of the parking pressing block and located in the storage sleeve, a push handle is installed on the upper surface of the cart base plate and located above the parking pressing block, a parking mechanism is connected into the push handle, and a pull rope is connected between the parking mechanism and the parking pressing block. A pull rope supporting rod is arranged in the parking mechanism and located below the pull rope. The hydraulic cylinder integrally pushes the swing arm to rotate on the outer side of the bottom plate, so that the compression-resistant rolling wheels at the ends of the swing arm are integrally in contact with the ground, the load on the upper surface of the cart base plate is shared, pressure borne by all the wheels is reduced, and normal rolling can be facilitated.

Description

Technical Field

[0001] The utility model relates to the field of trolleys, in particular to a pressure-resistant trolley for logistics transportation and transfer. Background Art

[0002] A trolley is a transport vehicle that is pushed and pulled by manpower. It has the advantages of low cost, simple maintenance, easy operation, and light weight. Therefore, it can work in places where motor vehicles are inconvenient to use. It is very convenient for transporting lighter items over short distances. For this reason, it is widely used in logistics and transportation.

[0003] However, when the trolleys currently on the market are carrying a large load, the rollers are easily compressed and inconvenient to move, and it is also difficult to brake the vehicle during movement. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pressure-resistant cart for logistics transportation and transfer, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: a pressure-resistant cart for logistics transportation and transfer, comprising a cart pad, a bottom plate installed on the lower surface of the cart pad, the outer end of the bottom plate is connected to a swing arm through a rotating shaft, the end of the swing arm is connected to a pressure-resistant roller, a hydraulic cylinder is connected to the top of the swing arm, a storage sleeve is installed below one end of the cart pad, a parking pressure block is arranged inside the storage sleeve, a return spring is installed on the outside of the parking pressure block and located inside the storage sleeve, a push handle is installed on the upper surface of the cart pad above the parking pressure block, a parking mechanism is connected inside the push handle, a pull rope is connected between the parking mechanism and the parking pressure block, and a pull rope support rod is arranged inside the parking mechanism and located below the pull rope.

[0006] As a further solution of the utility model: the parking mechanism includes: a winding roller, a ratchet gear, a pawl, and a crank.

[0007] As a further solution of the utility model: an anti-pressure block is installed on the upper surface of the cart pad above the hydraulic cylinder, and a movable roller is installed on the lower surface of the cart pad.

[0008] As a further solution of the utility model: the pressure-resistant roller is rotatably connected to the swing arm, and a limiting ring is installed on the upper surface of the pull rope support rod located outside the pull rope.

[0009] As a further solution of the utility model: a movable rotating shaft is connected between the winding roller and the ratchet gear, and the ratchet pawl is meshed and engaged with the ratchet gear.

[0010] As a further solution of the utility model: the pull rope is fixedly connected to the winding roller and the parking pressure block.

[0011] As a further solution of the utility model: the parking pressure block is fixedly connected to the trolley pad via the return spring.

[0012] As a further solution of the utility model: the anti-pressure block is fixedly connected to the cart pad.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The hydraulic cylinder as a whole uses the hydraulic rod to push the swing arm to rotate on the outside of the bottom plate, so that the pressure-resistant roller at the end of the swing arm is in contact with the ground as a whole. In conjunction with the moving roller under the trolley pad, the load on the upper surface of the trolley pad is distributed, thereby reducing the pressure on each wheel and facilitating normal rolling.

[0015] By disconnecting the connection between the pawl and the ratchet gear, the parking pressure block is pushed downward as a whole and contacts the ground under the action of the return spring. The cart pad as a whole needs to overcome the rolling friction of the moving roller and the anti-pressure roller and the sliding friction of the parking pressure block during movement, thereby facilitating the user's parking purpose. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a pressure-resistant cart for logistics transportation and transfer;

[0017] Figure 2 It is a structural schematic diagram of a parking mechanism in a pressure-resistant cart for logistics transportation and transfer;

[0018] Figure 3 This is a schematic diagram of the structure of a compression-resistant roller in a compression-resistant cart for logistics transportation and transfer;

[0019] Figure 4 It is a cross-sectional view of a cart in a pressure-resistant cart for logistics transportation and transfer;

[0020] Figure 5 The figure is a top view of a pressure-resistant cart for logistics transportation and transfer.

[0021] In the figure: 1. trolley pad; 2. push handle; 3. parking mechanism; 4. anti-pressure block; 5. anti-pressure roller; 6. moving roller; 7. parking pressure block; 201. pull rope support rod; 202. pull rope; 301. winding roller; 302. ratchet gear; 303. pawl; 304. crank; 501. bottom plate; 502. swing arm; 503. hydraulic cylinder; 701. storage sleeve; 702. reset spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-5 As shown, this embodiment provides a pressure-resistant cart for logistics transportation and transfer, including a cart pad 1, a bottom plate 501 is installed on the lower surface of the cart pad 1, the outer end of the bottom plate 501 is connected to a swing arm 502 through a rotating shaft, the end of the swing arm 502 is connected to a pressure-resistant roller 5, the pressure-resistant roller 5 is rotatably connected to the swing arm 502, and a hydraulic cylinder 503 is connected above the swing arm 502. A storage sleeve 701 is installed below one end of the cart pad 1, and a parking pressure block 7 is arranged inside the storage sleeve 701. The outer side of the parking pressure block 7 is located inside the storage sleeve 701. A return spring 702 is installed, and the parking pressure block 7 is fixedly connected to the trolley pad 1 through the return spring 702. A push handle 2 is installed above the parking pressure block 7, and the upper surface of the trolley pad 1 is located. The push handle 2 is connected to the parking mechanism 3, and a pull rope 202 is connected between the parking mechanism 3 and the parking pressure block 7. The pull rope 202 is fixedly connected to the winding roller 301 and the parking pressure block 7. A pull rope support rod 201 is arranged inside the parking mechanism 3, and a limit ring is installed on the upper surface of the pull rope support rod 201, which is located on the outside of the pull rope 202.

[0024] like Figure 2-5 As shown, in this embodiment, the parking mechanism 3 includes: a winding roller 301, a ratchet gear 302, a pawl 303, and a crank 304. A movable rotating shaft is connected between the winding roller 301 and the ratchet gear 302. The pawl 303 is engaged with the ratchet gear 302. An anti-pressure block 4 is installed on the upper surface of the cart pad 1 above the hydraulic cylinder 503. The anti-pressure block 4 is fixedly connected to the cart pad 1, and a movable roller 6 is installed on the lower surface of the cart pad 1.

[0025] The working principle of the utility model is: when the load on the top of the cart pad 1 is relatively light, the movable roller 6 under the cart pad 1 can roll normally as a whole; when the load on the top of the cart pad 1 is too heavy, and it is difficult for the user to push or pull, the driving hydraulic cylinder 503 is used as a whole to use the hydraulic rod to push the swing arm 502 to rotate on the outside of the bottom plate 501, so that the pressure-resistant roller 5 at the end of the swing arm 502 is in contact with the ground as a whole, and the movable roller 6 under the cart pad 1 is used to distribute the load on the upper surface of the cart pad 1, thereby reducing the pressure on each wheel, facilitating normal rolling, and achieving the purpose of facilitating pushing and pulling. At the same time, when pushing and pulling, the ratchet 3 is used to After the toggle disconnection and the limiting effect of the ratchet gear 302 are released, a rotational force is applied to the crank 304 as a whole to control the pull rope 202 to be wound on the outside of the winding roller 301, thereby pulling the parking pressure block 7 as a whole toward the inside of the storage sleeve 701 to compress the return spring 702 and deform it. When the upper surface of the cart pad 1 carries a large weight and encounters a downhill section, the connection between the ratchet pawl 303 and the ratchet gear 302 is disconnected, and the parking pressure block 7 as a whole is pushed downward and in contact with the ground under the action of the return spring 702. The cart pad 1 as a whole needs to overcome the rolling friction of the moving roller 6 and the anti-pressure roller 5 and the sliding friction of the parking pressure block 7 during movement, thereby facilitating the user's parking purpose.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure-resistant cart for logistics transportation and transfer, comprising a cart pad (1), characterized in that: A bottom plate (501) is installed on the lower surface of the cart pad (1); the outer end of the bottom plate (501) is connected to a swing arm (502) via a rotating shaft; the end of the swing arm (502) is connected to a pressure-resistant roller (5); the upper part of the swing arm (502) is connected to a hydraulic cylinder (503); a storage sleeve (701) is installed below one end of the cart pad (1); a parking pressure block (7) is arranged inside the storage sleeve (701); the parking pressure block (7) A return spring (702) is installed inside the storage sleeve (701) on the outside, a push handle (2) is installed on the upper surface of the trolley pad (1) above the parking pressure block (7), a parking mechanism (3) is connected inside the push handle (2), a pull rope (202) is connected between the parking mechanism (3) and the parking pressure block (7), and a pull rope support rod (201) is provided inside the parking mechanism (3) below the pull rope (202).

2. A pressure-resistant cart for logistics transportation and transfer according to claim 1, characterized in that: The parking mechanism (3) comprises: a winding roller (301), a ratchet gear (302), a ratchet pawl (303), and a crank (304).

3. A pressure-resistant cart for logistics transportation and transfer according to claim 1, characterized in that: An anti-pressure block (4) is installed on the upper surface of the trolley pad (1) above the hydraulic cylinder (503), and a movable roller (6) is installed on the lower surface of the trolley pad (1).

4. A pressure-resistant cart for logistics transportation and transfer according to claim 1, characterized in that: The pressure-resistant roller (5) is rotatably connected to the swing arm (502), and a limiting ring is installed on the upper surface of the pull rope support rod (201) outside the pull rope (202).

5. A pressure-resistant cart for logistics transportation and transfer according to claim 2, characterized in that: A movable rotating shaft is connected between the winding roller (301) and the ratchet gear (302), and the ratchet pawl (303) is meshed and clamped with the ratchet gear (302).

6. A pressure-resistant cart for logistics transportation and transfer according to claim 2, characterized in that: The pull rope (202) is fixedly connected to the winding roller (301) and the parking pressure block (7).

7. A pressure-resistant cart for logistics transportation and transfer according to claim 1, characterized in that: The parking pressure block (7) is fixedly connected to the trolley pad (1) via the return spring (702).

8. The pressure-resistant cart for logistics transportation and transfer according to claim 3 is characterized in that: The anti-pressure block (4) is fixedly connected to the cart pad (1).

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