Self-locking type picking vehicle

Abstract

The utility model discloses a self -locking type picks up a car relates to picking up a car technical field, it includes picking up a car car body, integrated in the car body's high -rise ladder and high -rise guardrail and the movable self -locking support mechanism of car body bottom, this mechanism contains four corner mounting seat, elastic mobile wheel group and support foot, and elastic mobile wheel group is by guide rod guide bushing, guide rod, universal wheel and spring composition. It is based on the elastic deformation of operator body weight and goods weight, drives support foot and ground pressure tight locking or separation unlocking, when climbing, limit car body movement deflection, when not climbing, restore movement, the utility model integrates the function of climbing and transportation, simplifies the operation process, and automatic self -locking unlocking, adapts to different working conditions, and has security and operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of picking cart technology, specifically a self-locking picking cart. Background Technology

[0002] In the daily operation of supermarket warehouses, picking and replenishing goods in the semi-high shelving area is a high-frequency operation. In the existing technology, such operations usually rely on separate trolleys and ladders: the operator must first push the trolley to the target shelving area, then move the ladder to the appropriate position and fix it, climb up to pick up the goods, place the goods on the trolley, and after the operation is completed, the trolley and ladder must be stored away separately.

[0003] This separate tool usage method has several drawbacks: First, carrying and transporting tools is cumbersome: the trolley and ladder are separate components, which not only occupy additional storage space but also require operators to move back and forth and switch tools, increasing physical burden; Second, the additional steps of retrieving, placing, and storing tools prolong the cycle of a single operation, especially in scenarios with multiple shelves and frequent retrieval, where the inefficiency is more pronounced; Third, when operating at height, the independent ladder lacks a coordinated fixing structure with the trolley, making it prone to shifting or tipping due to uneven ground or minor collisions; at the same time, the trolley itself has no locking function, and if the trolley is accidentally touched during the climbing process, it may roll, further increasing safety risks; Fourth, the few existing tools with fixing functions mostly use rigid fixing methods, which cannot adjust the locking force or height according to changes in operator weight or cargo weight, making it difficult to adapt to different working conditions and prone to problems such as insecure locking or difficulty in unlocking.

[0004] The shortcomings of the existing technologies mentioned above result in problems such as complex operation, low efficiency, and insufficient safety in the picking and replenishment operations of semi-high racking areas in supermarket warehouses, which cannot meet the requirements of efficient and safe operation. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce 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 used to limit the scope of this utility model.

[0006] Therefore, the purpose of this utility model is to provide a self-locking picking cart to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A self-locking picking cart includes: a picking cart body, a ladder and guardrail integrated on the picking cart body, and a movable self-locking support mechanism disposed at the bottom of the picking cart body. The mobile self-locking support mechanism generates elastic deformation based on the operator's weight and the weight of the goods, thereby achieving pressing and locking or separation and unlocking with the ground. This restricts the movement and swaying of the picking cart body when the operator is working at height, and restores the picking cart body's movement function when not working at height.

[0008] As a preferred embodiment of the self-locking picking cart described in this utility model, the picking cart body has at least two layers of racks, and the area of ​​the bottom rack is larger than the area of ​​the other layers.

[0009] As a preferred embodiment of the self-locking picking cart described in this utility model, the ladder is installed in the picking operation area of ​​the picking cart body. The ladder is detachably connected to the picking cart body or integrally formed, and the step spacing of the ladder is adapted to the human step distance.

[0010] In a preferred embodiment of the self-locking picking cart described in this utility model, the climbing guardrail is installed at the top of the climbing ladder to protect the operator in the climbing position.

[0011] As a preferred embodiment of the self-locking picking cart described in this utility model, the mobile self-locking support mechanism includes mounting seats at the four corners of the bottom of the picking cart body, and elastic movable wheel sets and support feet at the bottom of the mounting seats. The elastic moving wheel set can generate elastic deformation based on the operator's weight and the weight of the goods, driving the supporting feet to move up and down, thereby achieving pressing and locking or separating and unlocking with the ground.

[0012] As a preferred embodiment of the self-locking picking cart described in this utility model, the elastic moving wheel assembly includes a guide rod and guide sleeve, a guide rod partially located within the guide rod and guide sleeve and capable of sliding up and down along the guide rod and guide sleeve, a swivel wheel disposed at the bottom of the guide rod, and an elastic component sleeved on the guide rod and located between the guide rod and guide sleeve and the swivel wheel.

[0013] In a preferred embodiment of the self-locking picking cart described in this utility model, the elastic component is a spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The ladder, guardrail and picking cart are integrated into one design, eliminating the need to carry, move and store the climbing tools separately. The operator can directly push the cart to the target location and start climbing to pick up goods immediately. This eliminates the extra steps of tool switching and placement, greatly shortens the time of a single operation, and is suitable for the high-frequency picking and replenishment needs of supermarket warehouses. 2. The mobile self-locking support mechanism automatically generates elastic deformation based on the operator's weight and the weight of the goods, driving the support feet to press and lock against the ground or to separate and unlock, eliminating the need for manual operation of the locking wheels or fixed components. When elevated, the vehicle body forms a stable support with the ground through the support feet, effectively limiting wheel rolling and vehicle body sway, completely solving the safety hazards of traditional detachable tools being prone to displacement and tipping; when not elevated, the support springs automatically return to their original position, allowing the vehicle body to move flexibly, balancing safety and maneuverability. 3. The climbing guardrail is installed at the top of the climbing ladder to provide surrounding protection for operators while climbing, reducing the risk of falling; the picking cart body adopts a multi-layer rack design, and the bottom rack has a larger area or is specially designed to place heavier goods, which can effectively lower the overall center of gravity of the vehicle, avoid the risk of tipping over due to improper placement of goods, and improve the stability of the vehicle during movement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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: Figure 1 This is a schematic diagram of the overall structure of a self-locking picking cart according to the present invention; Figure 2 This is a schematic diagram of the structure of a mobile self-locking support mechanism for a self-locking picking cart according to the present invention. Detailed Implementation

[0016] 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.

[0017] 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 showing the device structure may be partially enlarged, not according 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, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0019] Figures 1-2 The diagram shown is a structural schematic of one embodiment of a self-locking picking cart according to this utility model. Please refer to [link / reference]. Figures 1-2 This embodiment of a self-locking picking cart includes a picking cart body 100, a ladder 200, a ladder guardrail 300, and a mobile self-locking support mechanism 400. The components work together to achieve efficient and safe picking and replenishment operations in the semi-high rack area.

[0020] The picking cart body 100 serves as the overall load-bearing base. It adopts a frame structure design with at least two layers of racks, and the area of ​​the bottom rack is larger than that of the other racks. The bottom rack is used to place heavier goods to lower the overall center of gravity of the cart and improve stability during movement.

[0021] The ladder 200 is integrated into the picking operation area of ​​the picking cart body 100. It can be detachably connected to the picking cart body 100 or manufactured by a one-piece molding process. The step spacing of the ladder 200 is adapted to the human step distance, preferably 25-35cm, to ensure the comfort and convenience of the operator during the climbing process. The detachable design facilitates the subsequent maintenance or replacement of the ladder 200.

[0022] The climbing guardrail 300 is fixedly installed at the top of the climbing ladder 200 and surrounds the edge of the picking operation area. It can effectively protect the operator in the climbing position and avoid the risk of falling due to the shift of the center of gravity.

[0023] The movable self-locking support mechanism 400 is symmetrically arranged at the bottom of the picking cart body 100, specifically including mounting base 410, elastic movable wheel set 420 and support foot 430. There are four mounting bases 410, which are fixedly installed at the four corners of the bottom of the picking cart body 100, providing a mounting base for the elastic movable wheel set 420 and support foot 430. The support foot 430 is fixedly connected to the bottom outer side of the mounting base 410, and its bottom end face is a flat structure, and is at the same reference plane as or slightly higher than the bottom of the universal wheel 420c of the elastic movable wheel set 420.

[0024] The elastic movable wheel assembly 420 is the core actuator of the movable self-locking support mechanism 400. It includes a guide rod sleeve 420a, a guide rod 420b, a caster wheel 420c, and an elastic component 420d. The guide rod sleeve 420a is vertically fixed at the bottom center of the mounting base 410. It has a hollow structure inside and a smooth, wear-resistant layer on the inner wall to reduce friction during the sliding of the guide rod 420b. The upper part of the guide rod 420b is inserted into the guide rod sleeve 420a and slides with it, allowing it to slide along the guide rod sleeve 420a. The sleeve 420a slides freely up and down along its axis; the universal wheel 420c is fixedly installed at the lower end of the guide rod 420b through a wheel seat, and adopts a universal wheel structure with steering function to ensure that the vehicle body can flexibly turn and move; the elastic component 420d is sleeved on the guide rod 420b and is located between the lower end face of the guide rod sleeve 420a and the wheel seat of the universal wheel 420c. In this embodiment, the elastic component 420d is preferably a cylindrical helical spring, and its elastic coefficient is adapted to generate corresponding elastic deformation based on the operator's weight and the weight of the goods.

[0025] Combination Figures 1-2 The self-locking picking cart of this embodiment is used as follows: In non-climbing state: When the operator is not on the ladder 200, the picking cart body 100 only bears its own weight and the weight of the loaded goods. At this time, the elastic component 420d is in a naturally extended state, the guide rod 420b is kept in an extended state under the support of the elastic component 420d, the caster wheel 420c is in contact with the ground, and the support foot 430 is off the ground. The operator can push the picking cart body 100 and move the cart body flexibly in the warehouse through the rolling of the caster wheel 420c until it reaches the target picking location.

[0026] During elevated operations: When the operator pushes the vehicle to the target position and climbs the ladder 200 to retrieve the goods, the operator's weight and the weight of the goods already loaded on the vehicle act together on the picking cart body 100, and are transmitted to the elastic moving wheel set 420 through the mounting seat 410. At this time, the elastic component 420d is subjected to downward pressure and undergoes elastic compression deformation, which drives the guide rod 420b to slide downward along the axial direction of the guide rod sleeve 420a, thereby driving the picking cart body 100 to move slightly downward as a whole. As the vehicle body moves downward, the bottom end face of the supporting foot 430 contacts the ground and gradually presses it, forming a stable support point. At the same time, the universal wheel 420c is partially lifted off the ground or restricted from rolling under pressure, thereby locking the vehicle body and effectively preventing the vehicle body from rolling or swaying during the elevated operation.

[0027] If the operator is lightweight, the initial position of the support foot 430 can be lowered by pre-adjusting the installation height of the support foot 430 (e.g., through the threaded adjustment structure between the support foot 430 and the mounting base 410). This ensures that even when the operator is lightweight, the support foot 430 can reliably touch the ground and press down when climbing, guaranteeing the locking effect.

[0028] When the climbing operation is completed: After the operator has retrieved the goods and climbed down the climbing ladder 200 and returned to the ground, the operator's weight load on the picking cart body 100 disappears. The elastic component 420d gradually extends and resets under its own elastic restoring force, pushing the guide rod 420b to slide upward along the guide rod sleeve 420a, causing the picking cart body 100 to move upward as a whole. The support foot 430 separates from the ground, and the universal wheel 420c re-contacts the ground and resumes its rolling function. The operator can then push the cart body to the next work position or designated storage area.

[0029] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A self-locking picking cart, characterized in that, include: The picking cart body (100), the ladder (200) and the guardrail (300) integrated on the picking cart body (100), and the movable self-locking support mechanism (400) provided at the bottom of the picking cart body (100). The mobile self-locking support mechanism (400) generates elastic deformation based on the weight of the operator and the weight of the goods, thereby achieving pressing and locking or separation and unlocking with the ground, so as to restrict the movement and swaying of the picking cart body (100) when the operator is climbing, and restore the movement function of the picking cart body (100) when not climbing.

2. A self-locking picking cart according to claim 1, characterized in that, The picking cart body (100) has at least two layers of racks, and the area of ​​the bottom rack is larger than the area of ​​the other layers.

3. A self-locking picking cart according to claim 1, characterized in that, The ladder (200) is installed in the picking operation area of ​​the picking cart body (100). The ladder (200) is detachably connected to the picking cart body (100) or integrally formed. The step spacing of the ladder (200) is adapted to the human step distance.

4. A self-locking picking cart according to claim 1, characterized in that, The climbing guardrail (300) is installed at the top of the climbing ladder (200) to protect the operator in the climbing position.

5. A self-locking picking cart according to claim 1, characterized in that, The movable self-locking support mechanism (400) includes mounting seats (410) at the four corners of the bottom of the picking cart body (100), and elastic movable wheel sets (420) and support feet (430) at the bottom of the mounting seats (410). The elastic moving wheel set (420) can generate elastic deformation based on the operator's weight and the weight of the goods, driving the supporting feet (430) to move up and down, so as to achieve pressing and locking or separation and unlocking with the ground.

6. A self-locking picking cart according to claim 5, characterized in that, The elastic movable wheel assembly (420) includes a guide rod sleeve (420a), a guide rod (420b) partially located inside the guide rod sleeve (420a) and capable of sliding up and down along the guide rod sleeve (420a), a swivel wheel (420c) disposed at the bottom of the guide rod (420b), and an elastic component (420d) sleeved on the guide rod (420b) and located between the guide rod sleeve (420a) and the swivel wheel (420c).

7. A self-locking picking cart according to claim 6, characterized in that, The elastic component (420d) is a spring.

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