Foldable table trolley

Abstract

The utility model relates to the technical field of warehouse logistics equipment, in particular to a foldable table trolley which comprises a bottom plate, walking wheels, a first guardrail and a second guardrail, the first guardrail is arranged at the rear end of the bottom plate, the rear end of the bottom plate is hinged to the lower end of the first guardrail, and the second guardrail is arranged at the lower end of the bottom plate. The second guardrails are symmetrically distributed on the left side and the right side of the bottom plate, the rear ends of the second guardrails are hinged to the left end and the right end of the first guardrail, a supporting frame is arranged at the lower ends of the second guardrails and supported below the bottom plate, and a fixing mechanism is arranged between the supporting frame and the bottom plate. And the walking wheels are arranged below the second guardrail. The bottom plate, the first guardrail and the second guardrail are connected in a hinged mode, folding of the table trolley is facilitated, meanwhile, the supporting frame and the fixing mechanism are arranged at the lower end of the second guardrail, the bottom plate can be supported and fixed, and the bearing capacity of the table trolley is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of warehousing logistics equipment, in particular to a foldable logistics trolley. Background Art

[0002] A logistics trolley, also called a cargo trolley or cage trolley, is a unit mobile container equipment equipped with four casters for transporting and storing materials. It is often used in logistics distribution in large supermarkets or logistics turnover between factory processes. In order to reduce the space occupied by idle logistics trolleys, existing logistics trolleys generally adopt a folding structure. For example, a Chinese utility model patent with authorization announcement number CN206307075U discloses a folding logistics trolley, including a bottom plate, running wheels, a folding bottom frame, a first guardrail and a second guardrail. It can be folded when idle, saving a lot of placement space. However, due to the folding structure of the bottom frame, the load-bearing capacity of the logistics trolley is poor. Utility Model Content

[0003] The utility model aims to provide a foldable logistics trolley to solve the problems raised in the background technology.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical solutions: a foldable logistics trolley, comprising: a base plate, walking wheels, a first guardrail and a second guardrail, the first guardrail is arranged at the rear end of the base plate, and the rear end of the base plate is hinged to the lower end of the first guardrail, the second guardrail is symmetrically distributed on the left and right sides of the base plate, the rear end of the second guardrail is hinged to the left and right ends of the first guardrail, a support frame is arranged at the lower end of the second guardrail, the support frame is supported below the base plate, a fixing mechanism is arranged between the support frame and the base plate, and the walking wheels are arranged below the second guardrail.

[0005] Preferably, the fixing mechanism includes a socket arranged on the support frame, a plug-in block fixed to the base plate and used to be inserted into the socket, a clamping block movably arranged in the socket, and an elastic reset member that drives the clamping block toward the plug-in block.

[0006] Preferably, the plug-in block includes a vertical plug-in portion and a horizontal blocking portion, the upper end of the vertical plug-in portion is fixed to the base plate, the horizontal blocking portion is arranged at the lower end of the vertical plug-in portion, and a blocking step is arranged at the upper end of the card-connecting block, and when the plug-in block is inserted into the socket, the horizontal blocking portion is located below the blocking step.

[0007] Preferably, a guiding slope is provided above the blocking step, and the guiding slope faces the direction of the plug-in block.

[0008] Preferably, the fixing mechanism further comprises a movable pull rod, the movable pull rod is movably inserted in the supporting frame, and the clamping block is fixed on the movable pull rod.

[0009] Preferably, the elastic reset member is sleeved on the movable pull rod, a baffle is provided on the movable pull rod, one end of the elastic reset member is connected to the baffle, and the other end is connected to the end of the support frame.

[0010] Preferably, a cross bar is provided between the left and right support frames, the cross bar is located below the front end of the base plate, one end of the cross bar is hinged to one of the support frames, and the other end is connected to the other support frame through a snap-fit ​​structure.

[0011] Preferably, the snap-fit ​​structure includes a U-shaped positioning block fixed on the support frame, a T-shaped snap joint mounted on the end of the cross bar, a slot arranged on the U-shaped positioning block, and an elastic clamping piece connected between the T-shaped snap joint and the end of the cross bar.

[0012] The beneficial effects of the utility model: the utility model adopts a hinged manner to connect the bottom plate, the first guardrail and the second guardrail, which is convenient for the folding of the logistics trolley. At the same time, a support frame and a fixing mechanism are arranged at the lower end of the second guardrail, which can support and fix the bottom plate and improve the load-bearing capacity of the logistics trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0014] Figure 2 It is a structural schematic diagram of another viewing angle of an embodiment of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the fixing mechanism in the embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the logistics trolley after folding in the embodiment of the utility model;

[0017] Figure 5 It is a structural schematic diagram of an embodiment of the utility model;

[0018] In the figure: 1-bottom plate, 2-first guardrail, 3-second guardrail, 4-walking wheel, 5-support frame, 501-socket, 6-fixing mechanism, 601-plug-in block, 6011-vertical plug-in part, 6012-horizontal blocking part, 602-clamping block, 6021-blocking step, 6022-guide slope, 603-movable pull rod, 604-elastic reset member, 605-baffle, 7-cross bar, 8-T-type clamping joint, 9-U-type positioning block, 901-card slot, 10-elastic pressing member. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] This specific embodiment is merely an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as it is within the scope of the claims of the present utility model, it shall be protected by the patent law.

[0021] Example: Figure 1-4 As shown, a foldable logistics trolley includes: a base plate 1, running wheels 4, a first guardrail 2 and a second guardrail 3. The first guardrail 2 is arranged at the rear end of the base plate 1, and the rear end of the base plate 1 is hinged to the lower end of the first guardrail 2 through a hinge shaft. The base plate 1 can be flipped up and down relative to the first guardrail 2.

[0022] The two second guardrails 3 are symmetrically distributed on the left and right sides of the floor, and the rear end of the second guardrail 3 is hinged to the left and right ends of the first guardrail 2, wherein the left and right ends of the first guardrail 2 are provided with forward protruding extensions, wherein the length of the extension on one side is consistent with the thickness of the base plate 1, and the length of the extension on the other side is consistent with the sum of the thicknesses of the base plate 1 and the second guardrail 3.

[0023] The running wheels 4 are arranged below the second guardrails 3 , and each second guardrail 3 is respectively equipped with at least two running wheels 4 , and the running wheels 4 are universal casters.

[0024] A support frame 5 is provided on the inner side surface of the lower end of the second guardrail 3 . The support frame 5 is fixedly connected to the second guardrail 3 . The support frame 5 is used to be supported below the bottom plate 1 .

[0025] The bottom plate 1 is composed of a steel pipe frame and a steel plate, which not only enhances the supporting strength of the bottom plate 1 but also reduces the overall weight.

[0026] like Figure 3 As shown, a fixing mechanism 6 is provided between the support frame 5 and the base plate 1, and the fixing mechanism 6 includes a socket 501 provided on the support frame 5, a plug-in block 601 fixed on the base plate 1 and used for inserting into the socket 501, a clamping block 602 movably provided in the socket 501, and an elastic reset member 604 for driving the clamping block 602 toward the plug-in block 601.

[0027] The plug-in block 601 includes a vertical plug-in portion 6011 and a horizontal blocking portion 6012. The upper end of the vertical plug-in portion 6011 is fixed on the base plate 1, and the horizontal blocking portion 6012 is arranged at the lower end of the vertical plug-in portion 6011. A blocking step 6021 is arranged at the upper end of the clamping block 602. When the plug-in block 601 is inserted into the socket 501, the horizontal blocking portion 6012 is located below the blocking step 6021.

[0028] A guiding slope 6022 is provided above the blocking step 6021, and the guiding slope 6022 faces the direction of the plug-in block 601. When the plug-in block 601 is inserted into the socket 501, the lower end of the plug-in block 601 squeezes the guiding slope 6022, so that the clamping block 602 moves to the right until the horizontal blocking portion 6012 is located below the plane where the blocking step 6021 is located. At this time, the clamping block 602 moves to the left under the elastic force of the elastic reset member 604, so that the blocking step 6021 moves to above the horizontal blocking portion 6012, thereby preventing the plug-in block 601 from detaching.

[0029] The fixing mechanism 6 also includes a movable rod 603 . The support frame 5 is a hollow square tube. The movable rod 603 is movably inserted into the support frame 5 . The clamping block 602 is fixed on the movable rod 603 . One end of the movable rod 603 extends out of the support frame 5 .

[0030] The elastic reset member 604 is a spring, which is sleeved on the movable pull rod 603. The movable pull rod 603 is provided with a baffle 605. One end of the elastic reset member 604 is connected to the baffle 605, and the other end is connected to the end of the support frame 5. When folding is required, the movable pull rod 603 is pulled rightward to move the clamping block 602 to the right. At this time, the bottom plate 1 is turned upward, and the plug-in block 601 is pulled out from the socket 501.

[0031] like Figure 4 As shown, a cross bar 7 is provided between the left and right support frames 5. The cross bar 7 is located below the front end of the bottom plate 1. One end of the cross bar 7 is hinged to one of the support frames 5, and the other end is connected to the other support frame 5 through a snap-fit ​​structure. The upper end surface of the cross bar 7 is flush with the upper end surface of the support frame 5, so that the bottom plate 1 can be supported. In this way, the left and right sides of the bottom plate 1 are supported on the two second guardrails 3 through the two support frames 5, the front end of the bottom plate 1 is supported by the cross bar 7, and the rear end of the bottom plate 1 is supported on the first guardrail 2 through the hinge shaft, thereby ensuring that the logistics trolley has sufficient load-bearing capacity.

[0032] The buckle structure includes a U-shaped positioning block 9 fixed on the support frame 5, a T-shaped clamping joint 8 mounted on the end of the crossbar 7, a clamping groove 901 set on the U-shaped positioning block 9, and an elastic clamping member 10 connected between the T-shaped clamping joint 8 and the end of the crossbar 7. The elastic clamping member 10 is a spring. When folding is required, the T-shaped clamping joint 8 is pushed leftward to disengage the end of the T-shaped clamping joint 8 from the clamping groove 901, and then the crossbar 7 is rotated to abut against the support frame 5 on the left.

[0033] like Figure 5 As shown, after the logistics trolley is folded, the bottom plate 1 is flipped upward until it overlaps with the first guardrail 2, and then the second guardrail 3 on the left is rotated to overlap with the bottom plate 1, and finally the second guardrail 3 on the right is rotated to overlap with the second guardrail 3 on the left.

Claims

1. A foldable logistics trolley, comprising: A base plate (1), a running wheel (4), a first guardrail (2) and a second guardrail (3), characterized in that the first guardrail (2) is arranged at the rear end of the base plate (1), and the rear end of the base plate (1) is hinged to the lower end of the first guardrail (2), the second guardrail (3) is symmetrically distributed on the left and right sides of the base plate (1), the rear end of the second guardrail (3) is hinged to the left and right ends of the first guardrail (2), a support frame (5) is arranged at the lower end of the second guardrail (3), the support frame (5) is supported below the base plate (1), a fixing mechanism (6) is arranged between the support frame (5) and the base plate (1), and the running wheel (4) is arranged below the second guardrail (3).

2. A foldable logistics trolley according to claim 1, characterized in that: The fixing mechanism (6) comprises a socket (501) arranged on the support frame (5), a plug-in block (601) fixed on the base plate (1) and used for being inserted into the socket (501), a clamping block (602) movably arranged on the socket (501), and an elastic reset member (604) for driving the clamping block (602) to lean against the plug-in block (601).

3. A foldable logistics trolley according to claim 2, characterized in that: The plug-in block (601) comprises a vertical plug-in portion (6011) and a horizontal blocking portion (6012); the upper end of the vertical plug-in portion (6011) is fixed to the bottom plate (1); the horizontal blocking portion (6012) is arranged at the lower end of the vertical plug-in portion (6011); a blocking step (6021) is arranged at the upper end of the clamping block (602); when the plug-in block (601) is inserted into the socket (501), the horizontal blocking portion (6012) is located below the blocking step (6021).

4. A foldable logistics trolley according to claim 3, characterized in that: A guiding inclined surface (6022) is provided above the blocking step (6021), and the guiding inclined surface (6022) faces the direction of the plug-in block (601).

5. A foldable logistics trolley according to claim 4, characterized in that: The fixing mechanism (6) further comprises a movable pull rod (603), wherein the movable pull rod (603) is movably inserted into the support frame (5), and the clamping block (602) is fixed on the movable pull rod (603).

6. A foldable logistics trolley according to claim 5, characterized in that: The elastic reset member (604) is sleeved on the movable pull rod (603), a baffle (605) is provided on the movable pull rod (603), one end of the elastic reset member (604) is connected to the baffle (605), and the other end is connected to the end of the support frame (5).

7. The foldable logistics trolley according to claim 1, characterized in that: A cross bar (7) is provided between the left and right support frames (5), and the cross bar (7) is located below the front end of the bottom plate (1). One end of the cross bar (7) is hinged to one of the support frames (5), and the other end is connected to the other support frame (5) via a snap-fit ​​structure.

8. The foldable logistics trolley according to claim 7, characterized in that: The buckle structure comprises a U-shaped positioning block (9) fixed on the support frame (5), a T-shaped clamping joint (8) sleeved on the end of the crossbar (7), a clamping groove (901) provided on the U-shaped positioning block (9), and an elastic pressing member (10) connected between the T-shaped clamping joint (8) and the end of the crossbar (7).

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