Safe trolley based on normal braking

Abstract

The utility model relates to a safe trolley based on normal braking. The safe trolley comprises a flat plate part and a protective shell. The flat plate part is provided with a pair of folding pedal frames in a folding manner, and the pair of folding pedal frames are symmetrically distributed relative to the center line of the flat plate part; a pair of folding pedal frames is arranged on the base, protective shells are installed on the opposite faces of the pair of folding pedal frames, turnover plates are rotationally connected into the protective shells, pull rods are fixedly connected to the turnover plates, long holes are formed in the surfaces of the protective shells, the pull rods are movably located in the long holes, and first connecting bases are hinged to the turnover plates. According to the safe trolley, the automatic braking function and the synchronous braking function are combined, a firm safety defense line is built, the safety of the trolley and carried objects can be guaranteed to the maximum degree no matter temporary pause or hand release caused by unexpected situations in daily use, reliable braking can be achieved in various slope environments, and the application range is wider.

Description

Technical Field

[0001] This utility model belongs to the field of logistics and transportation technology, specifically a safety handcart based on normal braking. Background Technology

[0002] Handcarts are common material handling tools, widely used in warehouses, factories, shopping malls, and other settings to move goods and improve efficiency. Traditional handcarts are usually equipped with casters for easy movement, but their braking systems are mostly manual, requiring the operator to actively activate the brakes to limit wheel rotation.

[0003] In practical use, especially in sloping environments or when operators temporarily leave or accidentally drop their hands, traditional handcarts are prone to accidental slippage due to the lack of automatic braking function, which can lead to damage to goods or safety accidents. Therefore, a safe handcart based on normal braking is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given the following technical problems in the existing technology: In actual use, especially in sloping environments or when operators temporarily leave or accidentally lose their hands, traditional handcarts are prone to accidental slippage due to the lack of automatic braking function, which can lead to damage to goods or safety accidents.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a safety handcart based on normal braking, including a flat section and a protective shell;

[0007] A pair of folding footrests are foldably mounted on the flat plate, and the pair of folding footrests are symmetrically distributed about the center line of the flat plate.

[0008] A protective shell is installed on the opposite sides of the pair of folding footrests. A flip plate is rotatably connected to the protective shell. A pull rod is fixed to the flip plate. An elongated hole is opened on the surface of the protective shell. The pull rod is movably positioned in the elongated hole. A connecting seat one is hinged to the flip plate. A pull line is connected to the bottom surface of the connecting seat one. A connecting seat two is installed at the bottom of the protective shell. The pull line passes through the connecting seat two. By operating the pull rod, the flip plate rotates together with the pull rod. The connecting seat one increases the portion of the pull line inside the protective shell. The connecting seat two guides the pull line.

[0009] A braking component is installed at the part of the pull cable that extends out of the protective housing.

[0010] As a preferred technical solution for a safety handcart based on normal braking, casters are installed at the four corners of the lower surface of the flat section, which are used to facilitate the positional changes of the flat section, and a main handrail is configured on a pair of folding footrests.

[0011] As a preferred technical solution for a safety handcart based on normal braking, the braking assembly includes a pull ring, a brake pin, and an outer cylinder. The pull ring is connected to the end of the pull cable away from the protective shell, and the brake pin is connected to the side of the pull ring away from the pull cable.

[0012] As a preferred technical solution for a safety handcart based on normal braking, the outer cylinder is located outside the brake pin and is installed at the external braking position of the caster wheel.

[0013] As a preferred technical solution for a safety handcart based on normal braking, an extension sleeve is provided outside the part of the brake pin located in the outer cylinder, wherein the extension sleeve is used to ensure that the brake pin is not easily detached from the outer cylinder.

[0014] As a preferred technical solution for a safety handcart based on normal braking, a spring is installed between the extension sleeve and the inner edge of the outer cylinder. The spring surrounds the brake pin. When the brake pin is pulled, it compresses the spring through the extension sleeve. At this time, the bottom end of the brake pin disengages from the braking part of the universal wheel, allowing the universal wheel to roll and facilitating the movement of the entire device. When the brake pin is not under tension, the bottom end of the brake pin easily inserts into the braking part of the universal wheel under the action of the spring. At this time, the state of the universal wheel is limited, ensuring that the entire device does not move.

[0015] The beneficial effects of this utility model are:

[0016] 1. This safety trolley combines automatic braking and synchronous braking functions to build a solid safety barrier. Whether it is a temporary stop during daily use or an accident that causes the trolley to slip out of your hands, it can ensure the safety of the trolley and the items it carries to the greatest extent. Moreover, it can brake reliably in various slope environments, making it more widely applicable.

[0017] 2. Although the braking state switching is precise, the operation is relatively simple and easy to understand. Through clear steps, operators can easily master how to release the brake and push the vehicle forward, requiring no complex training or professional skills, making it convenient for use by various groups. Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the interior of the protective shell of this utility model.

[0021] Figure 3 This is a schematic diagram showing the changes in the flip plate of this utility model.

[0022] Figure 4 This is a schematic diagram showing the variation of the brake pin in this utility model.

[0023] Reference numerals: 100, flat plate; 101, folding footrest; 102, main handrail; 200, protective shell; 201, flip plate; 202, pull rod; 203, elongated hole; 204, connecting seat one; 205, pull cable; 206, connecting seat two; 300, pull ring; 301, brake pin; 302, outer cylinder; 303, extension sleeve; 304, spring. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Example, refer to Figure 1 A safety handcart based on normal braking includes a flat section 100 and a protective shell 200;

[0029] A pair of folding footrests 101 are foldably mounted on the flat section 100. The pair of folding footrests 101 are symmetrically distributed about the center line of the flat section 100. Universal wheels are installed at the four corners of the lower surface of the flat section 100. The universal wheels are used to facilitate the position change of the flat section 100. A main handrail 102 is configured on the pair of folding footrests 101.

[0030] Reference Figure 1 , 2 3. A protective shell 200 is installed on the opposite side of a pair of folding footrests 101. A flip plate 201 is rotatably connected in the protective shell 200. A pull rod 202 is fixedly connected to the flip plate 201. An elongated hole 203 is opened on the surface of the protective shell 200. The pull rod 202 is movably located in the elongated hole 203. A connecting seat 1 204 is hinged to the flip plate 201. A pull wire 205 is connected to the bottom surface of the connecting seat 1 204. A connecting seat 206 is installed at the bottom of the protective shell 200. The pull wire 205 passes through the connecting seat 206. By operating the pull rod 202, the flip plate 201 rotates together with the pull rod 202. The connecting seat 1 204 increases the portion of the pull wire 205 in the protective shell 200. The connecting seat 206 guides the pull wire 205.

[0031] Reference Figure 3 and 4A braking assembly is installed at the portion of the pull cable 205 extending out of the protective housing 200. The braking assembly includes a pull ring 300, a brake pin 301, and an outer cylinder 302. The pull ring 300 is connected to the end of the pull cable 205 furthest from the protective housing 200. The brake pin 301 is connected to the side of the pull ring 300 furthest from the pull cable 205. The outer cylinder 302 is located outside the brake pin 301 and is installed at the external braking position of the caster wheel. An extension sleeve 303 is installed outside the portion of the brake pin 301 within the outer cylinder 302. The extension sleeve 303 is used to prevent the brake pin 301 from easily detaching from the outer cylinder 302. A spring 304 is installed between the inner edge of the sleeve 303 and the outer cylinder 302. The spring 304 surrounds the brake pin 301. When the brake pin 301 is pulled, it will compress the spring 304 through the extension sleeve 303. At this time, the bottom end of the brake pin 301 is disengaged from the braking part of the universal wheel, and the universal wheel can roll to facilitate the movement of the whole device. When the brake pin 301 is not pulled, under the action of the spring 304, the bottom end of the brake pin 301 can be inserted into the braking part of the universal wheel. At this time, the state of the universal wheel is limited, ensuring that the whole device does not move.

[0032] This implementation will achieve the following:

[0033] S1. When the goods on the flat section 100 need to be moved for position adjustment, touch the center of your palm to the main handle 102, hook your fingers on the pull rod 202, and pull the pull rod 202 toward the main handle 102. Figure 1 The diagram shows the effect after pulling. When the lever 202 is operated, the flip plate 201 rotates together with the lever 202. The connecting seat 204 increases the portion of the pull cable 205 inside the protective shell 200. The pull cable 205 is linked to the pull ring 300. When the brake pin 301 is pulled, it will compress the spring 304 through the extension sleeve 303. At this moment, the bottom end of the brake pin 301 is disengaged from the brake part of the universal wheel, and the universal wheel can roll, which facilitates the movement of the entire device. At the same time, the cooperation of the flip plate 201, the lever 202 and the connecting seat 204 forms a lever principle, which can reduce the force required when pulling.

[0034] S2. Conversely, when the pull rod 202 is loosened, the flip plate 201 and the connecting seat 204 are reset under the action of the spring 304, so that the bottom end of the brake pin 301 can be inserted into the braking part of the universal wheel. At this time, the state of the universal wheel is limited, ensuring that the overall device does not move.

[0035] The safety flatbed trolley is equipped with two key braking-related functions. First, it features an automatic braking safety device that engages when the brake lever 202 is released. This means that as soon as the operator releases lever 202, the trolley will automatically brake immediately to prevent accidental slippage. Second, it has a synchronized braking function for both the omnidirectional and directional wheels. Regardless of the type of wheel, they can brake simultaneously, greatly enhancing the overall braking effect. Thanks to these two functions, even when the trolley is unattended, such as when the operator temporarily leaves or accidentally drops it, it will remain steadily stationary and safe. Even when parked on a slight incline, there is no need to worry about it slipping.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring extensive experimentation. It should be noted that the above embodiments are merely illustrative of the technical solutions of this utility model and not intended to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A safety handcart based on normal braking, characterized in that: Includes a flat plate (100) and a protective shell (200); A pair of folding footrests (101) are foldably mounted on the flat plate (100), and the pair of folding footrests (101) are symmetrically distributed about the center line of the flat plate (100); A protective shell (200) is installed on the opposite side of a pair of folding footrests (101). A flip plate (201) is rotatably connected in the protective shell (200). A pull rod (202) is fixedly connected to the flip plate (201). An elongated hole (203) is opened on the surface of the protective shell (200). The pull rod (202) is movably located in the elongated hole (203). A connecting seat one (204) is hinged on the flip plate (201). A pull wire (205) is connected to the bottom surface of the connecting seat one (204). A connecting seat two (206) is installed at the bottom of the protective shell (200). The pull wire (205) passes through the connecting seat two (206). A braking component is installed at the part of the pull wire (205) that extends out of the protective housing (200).

2. The safety handcart based on normal braking according to claim 1, characterized in that: The flat plate (100) is equipped with casters at the four corners of its lower surface, and a main handrail (102) is provided on a pair of folding footrests (101).

3. The safety handcart based on normal braking according to claim 1, characterized in that: The braking assembly includes a pull ring (300), a brake pin (301), and an outer cylinder (302). The pull ring (300) is connected to the end of the pull cable (205) away from the protective housing (200), and the brake pin (301) is connected to the side of the pull ring (300) away from the pull cable (205).

4. The safety handcart based on normal braking according to claim 3, characterized in that: The outer cylinder (302) is located outside the brake pin (301).

5. The safety handcart based on normal braking according to claim 3, characterized in that: An extension sleeve (303) is provided outside the part of the brake pin (301) located in the outer cylinder (302).

6. The safety handcart based on normal braking according to claim 5, characterized in that: A spring (304) is installed between the inner edge of the extension sleeve (303) and the outer cylinder (302), and the spring (304) surrounds the brake pin (301).

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