Folding hand trailer

Abstract

The utility model discloses a folding hand trailer which comprises a bearing frame and a hand towing frame, two sets of first side rods are arranged on the bearing frame, two sets of second side rods are arranged on the hand towing frame, a sleeve rod is installed between the two sets of first side rods, a rotating shaft is connected in the sleeve rod in a sleeved mode, and the two ends of the rotating shaft penetrate through the first side rods and are connected with the inner sides of the two sets of second side rods respectively. The hand trailer has the advantages that the fixing rods, the torsional springs and the mounting plates are matched with one another, the torsional springs can provide reset force to fold the mounting plates and the rolling wheels in the process of folding the first side rods, and therefore the folding size of the hand trailer is effectively reduced, and meanwhile when the first side rods are unfolded to the unfolding position, the limiting columns are clamped into the clamping grooves; the limiting columns and the clamping blocks are matched to limit and fix the mounting plates and the rollers, so that the hand trailer is kept in a stable unfolding state, the first side rods directly make contact with the ground after being unfolded, goods do not need to be lifted in the process of loading the goods to the bearing frame, the operation convenience is improved, and manpower and material resources are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to handcart technical field, especially a folding hand trailer. BACKGROUND

[0002] The handcart is the carrying vehicle that pulls and pushes by manpower, although the handcart material handling technology develops unceasingly, but the handcart still as indispensable carrying tool and along with, the handcart obtains the widespread application in production and life because it is low in cost, simple to maintain, convenient to operate, light in weight, can work in the place where the motor vehicle is inconvenient to use, when the lighter goods are carried in the short distance, it is very convenient, the handcart has the difference of single wheel, two wheels, three wheels and four wheels, the single wheel car can run on the narrow jump board, convenient bridge and the narrow path, can turn in place, and it is very convenient to unload goods.

[0003] The bottom of the bearing frame of some existing folding handcart is generally provided with a support frame, this kind of design will raise the height of the bearing frame, which leads to the need to raise the goods in the process of placing goods to the hand trailer, which is not only inconvenient to operate, but also needs to consume a certain amount of manpower. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the shortcomings that the bottom of the bearing frame of some existing folding handcart is generally provided with a support frame, this kind of design will raise the height of the bearing frame, which leads to the need to raise the goods in the process of placing goods to the hand trailer, which is not only inconvenient to operate, but also needs to consume a certain amount of manpower, and provides a folding hand trailer.

[0005] The utility model discloses a folding hand trailer, including the bearing frame and the hand trailer, be provided with two groups first side pole on the bearing frame, the hand trailer is seted up two groups second side pole, install the sleeve pole between two groups first side pole, the sleeve pole is connected with the pivot, and the both ends of pivot are through first side pole and are connected with the inside of two groups second side pole respectively;

[0006] The installation plate is seted up the clamping groove, and the first side pole is installed with the limiting post that is matched with the clamping groove, and the end of limiting post away from the first side pole is installed with the clamping block corresponding with the installation plate.

[0007] The fixed rod, the torsional spring and the mounting plate are matched to provide a reset force of the torsional spring to fold the mounting plate and the roller in the process of folding the first side rod, so that the folding volume of the hand trailer is effectively reduced, and the portability of the hand trailer is improved.

[0008] Further, the two groups of second side rods are provided with connecting rods, the connecting rods and the sleeve rods are provided with two groups of vertical rods, the two groups of vertical rods are provided with inner recesses corresponding to the load bearing frame, and the inner recesses corresponding to the load bearing frame are arranged on the two groups of vertical rods.

[0009] Further, the two groups of second side rods are provided with connecting rods, the connecting rods and the sleeve rods are provided with two groups of vertical rods, the two groups of vertical rods are provided with inner recesses corresponding to the load bearing frame, and the inner recesses corresponding to the load bearing frame are arranged on the two groups of vertical rods.

[0010] Further, the lower part of the telescopic pipe is provided with an anti-falling block corresponding to the second side rod, and the anti-falling block is arranged to prevent the telescopic pipe from falling out of the second side rod.

[0011] Further, the bottom of the first side rod and the second side rod is provided with a wear-resistant layer, and the wear-resistant layer is arranged to improve the wear resistance of the bottom of the first side rod and the second side rod, thereby effectively prolonging the service life of the equipment.

[0012] Further, the two groups of first side rods are provided with a plurality of groups of load bearing cross rods arranged at equal distances, and the load bearing cross rods are arranged to improve the load bearing capacity of the load bearing frame.

[0013] The utility model has the following advantages: the utility model through setting up fixed link, torsional spring and mounting plate cooperation can in the process of folding first side rod torsional spring provides reset force and folds mounting plate and gyro wheel, thereby effectively reduces the folding volume of hand trailer, improves the portability of hand trailer, simultaneously, in the process of unfolding first side rod, the lower part of first side rod promotes mounting plate and gyro wheel to unfold, when reaches the unfolding position, the limiting column is connected into the clamping groove, the limiting column and the clamping block cooperate and limit mounting plate and gyro wheel fixedly, thereby makes hand trailer keep stable unfolding state, sets up first side rod after unfolding and directly contacts ground, need not in the process of loading goods to bearing frame to lift goods, improves the convenience of operation, saves manpower and material resources. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the unfolded state three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is the folding state schematic view of the utility model; Figure 1 It is the enlarged schematic view of the A structure in the utility model;

[0016] Figure 3 It is the folding state schematic view of the utility model;

[0017] Figure 4 It is the gyro wheel mounting structure schematic view of the utility model;

[0018] Figure 5 It is the second side rod sectional structure schematic view of the utility model;

[0019] Figure 6 It is the side view structure schematic view of the utility model;

[0020] In the drawing, 1, bearing frame;101, first side rod;102, bearing cross bar;103, sleeve rod;2, hand trailer;201, second side rod;202, pivot;203, vertical rod;204, connecting rod;3, telescopic pipe;4, press spring buckle;5, fixed link;6, torsional spring;7, mounting plate;8, gyro wheel;9, limiting column;10, clamping groove;11, clamping block;12, wear layer;13, recess;14, anti-drop block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, instead of all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents the selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0023] It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict.

[0024] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] As shown in FIG. Figures 1-6 A folding hand trailer, comprising a load-bearing frame 1 and a hand trailer frame 2, the load-bearing frame 1 is provided with two groups of first side rods 101, the hand trailer frame 2 is provided with two groups of second side rods 201, a sleeve rod 103 is installed between the two groups of first side rods 101, a rotating shaft 202 is sleeved in the sleeve rod 103, the two ends of the rotating shaft 202 penetrate through the first side rod 101 and are connected with the inner sides of the two groups of second side rods 201 respectively;

[0028] The lower part of each of the two groups of second side rods 201 is provided with a fixed rod 5, the fixed rod 5 is provided with a rotatable mounting plate 7, the fixed rod 5 is provided with a torsional spring 6, the two ends of the torsional spring 6 are connected with the mounting plate 7 and the second side rod 201 respectively, and the two mounting plates 7 are provided with a rotatable roller 8 on the side close to each other.

[0029] The mounting plate 7 is provided with a clamping groove 10, the first side rod 101 is provided with a limiting column 9 matched with the clamping groove 10, and the end of the limiting column 9 away from the first side rod 101 is provided with a clamping block 11 matched with the mounting plate 7.

[0030] The cooperation of the fixed rod 5, the torsional spring 6 and the mounting plate 7 can provide a restoring force for the mounting plate 7 and the roller 8 during the folding of the first side rod 101, thereby effectively reducing the folding volume of the hand trailer and improving the portability of the hand trailer.

[0031] The two groups of second side rods 201 are provided with a connecting rod 204, the connecting rod 204 is provided with two groups of vertical rods 203 between the connecting rod 204 and the sleeve rod 103, and the two groups of vertical rods 203 are provided with an inner recess matched with the load-bearing frame 1.

[0032] The two groups of second side rods 201 are provided with a telescopic pipe 3 slidably sleeved therein, the upper parts of the two groups of telescopic pipes 3 are connected, the telescopic pipe 3 is provided with grooves 13 arranged at equal distances, and the second side rod 201 is provided with a press-type spring buckle 4 matched with the grooves 13.

[0033] The lower part of the telescopic pipe 3 is provided with an anti-falling block 14 matched with the second side rod 201, and the anti-falling block 14 can prevent the telescopic pipe 3 from falling out of the second side rod 201.

[0034] The bottom of the first side rod 101 and the second side rod 201 is provided with a wear-resistant layer 12, and the wear-resistant layer 12 can improve the wear resistance of the bottom of the first side rod 101 and the second side rod 201, thereby effectively improving the service life of the equipment.

[0035] A plurality of load-bearing cross bars 102 are installed between the two groups of first side bars 101 at equal intervals, and the load-bearing cross bars 102 can improve the load-bearing capacity of the load-bearing frame 1.

[0036] The working process of the utility model is as follows: when the hand trailer is used to transport goods, the first side bar 101 is unfolded downward, the lower part of the first side bar 101 pushes the mounting plate 7 and the roller 8 to unfold, when reaching the unfolded position, the limiting column 9 is clamped into the clamping groove 10, the limiting column 9 and the clamping block 11 cooperate to limit and fix the mounting plate 7 and the roller 8, so that the hand trailer maintains a stable unfolded state, and the telescopic length of the telescopic pipe 3 is adjusted according to the size of the goods, when the hand trailer is folded after use, the second side bar 201 is kept unfolded in different directions from the first side bar 101, the torsional spring 6 provides a restoring force to fold the mounting plate 7 and the roller 8, and the first side bar 101 is folded into the inner recess on the vertical bar 203.

[0037] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A folding hand trolley comprising a load bearing frame (1) and a hand trolley frame (2), characterised in that: Two groups of first side poles (101) are arranged on the load-bearing frame (1), two groups of second side poles (201) are arranged on the hand-drag frame (2), a sleeve pole (103) is arranged between the two groups of first side poles (101), a rotating shaft (202) is sleeved in the sleeve pole (103), and the two ends of the rotating shaft (202) penetrate through the first side poles (101) and are connected with the inner sides of the two groups of second side poles (201) respectively. A fixed pole (5) is arranged at the lower part of each of the two groups of second side poles (201), a rotatable mounting plate (7) is arranged on each of the two groups of fixed poles (5), a torsional spring (6) is arranged on each of the two groups of fixed poles (5), the two ends of the torsional spring (6) are connected with the mounting plate (7) and the second side pole (201) respectively, and a rotatable roller (8) is arranged on the side of the two groups of mounting plates (7) close to each other. A clamping groove (10) is arranged on the mounting plate (7), a limiting column (9) matched with the clamping groove (10) is arranged on the first side pole (101), and a clamping block (11) corresponding to the mounting plate (7) is arranged at the end of the limiting column (9) away from the first side pole (101).

2. A foldable hand trailer according to claim 1, characterised in that: A connecting pole (204) is arranged between the two groups of second side poles (201), two groups of vertical poles (203) are arranged between the connecting pole (204) and the sleeve pole (103), and recessed parts corresponding to the load-bearing frame (1) are arranged on the two groups of vertical poles (203).

3. A foldable hand trailer as claimed in claim 1, wherein: A telescopic pipe (3) is sleeved in each of the two groups of second side poles (201) in a sliding manner, the upper parts of the two groups of telescopic pipes (3) are connected, recesses (13) are arranged on the telescopic pipe (3) at equal distances, and press-type spring buckles (4) matched with the recesses (13) are arranged on the second side poles (201).

4. A foldable hand trailer as claimed in claim 3, characterised in that: A anti-dropping block (14) corresponding to the second side pole (201) is arranged at the lower part of the telescopic pipe (3).

5. The foldable hand trailer of claim 1, wherein: Wear-resistant layers (12) are arranged at the bottoms of the first side poles (101) and the second side poles (201).

6. The foldable hand trailer of claim 1, wherein: A plurality of load-bearing cross poles (102) arranged at equal distances are arranged between the two groups of first side poles (101).

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