A portable gantry lifting electronic scale

Abstract

This utility model discloses a portable gantry-type lifting electronic scale, relating to the field of weighing equipment technology. The utility model includes a lifting drive assembly, a hanging scale, and a vertical support frame. The lifting drive assembly includes a shaft box and a shaft. The two ends of the shaft are rotatably mounted on the two side ends inside the shaft box. Two winches are fixed to the outer wall of the shaft, and a lifting cable is wound inside the winches. The lifting cable slides through the lower side of the shaft box and is fixedly connected to the upper end of the hanging scale. Crossarms are respectively provided on the outer side of both ends of the shaft box, and the two crossarms are respectively connected to the upper ends of two vertical support frames. This utility model, through a portable gantry structure composed of a shaft box, crossarms, and vertical support frames, combined with casters at the bottom, achieves rapid movement and deployment of the weighing equipment. This allows users to move the scale above the object to be weighed without having to carry the object, significantly improving the convenience and applicability of weighing operations.

Description

Technical Field

[0001] This utility model belongs to the technical field of weighing equipment, and in particular relates to a portable gantry lifting electronic scale. Background Technology

[0002] In warehousing and logistics, construction sites, and other scenarios, it is often necessary to weigh large or heavy items. Traditional floor scales require the items to be moved to the weighing platform, which is extremely inconvenient for objects that are fixed in position or difficult to move, and also poses operational safety hazards. Although some existing crane scales can achieve aerial weighing, they mostly rely on fixed suspension points or gantry structures, lacking portability and rapid deployment capabilities. In temporary or space-constrained working environments, setting up a stable weighing support is often time-consuming and labor-intensive, and the rigidity and stability of ordinary supports are insufficient, affecting the accuracy of weighing readings. In addition, traditional manual winch lifting methods are difficult to precisely control the lifting and lowering, resulting in low efficiency. Therefore, the market urgently needs a solution that combines portability, rapid setup capabilities, and stable and accurate weighing functions.

[0003] To address these issues, we provide a portable gantry crane electronic scale. Utility Model Content

[0004] The purpose of this utility model is to provide a portable gantry crane lifting electronic scale. A horizontal arm is installed at each end of the axle box, and a vertical support frame is connected to each of the horizontal arms. The axle box, the horizontal arms on both sides of the axle box, and the two vertical support frames form a gantry crane. A shaft is rotatably installed inside the axle box, and a winch is fixedly sleeved on the shaft. The lifting cable inside the winch is connected to the crane scale. When weighing is required, the gantry crane is moved above the object to be weighed, the hook below the crane scale is hooked onto the object, and the shaft is rotated to cause the winch to wind the lifting cable, thereby raising the crane scale and lifting the object for weighing. This allows for weighing without moving the object.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a portable gantry lifting electronic scale, including a lifting drive assembly, a hanging scale and two vertical support frames. The lifting drive assembly includes a shaft box and a shaft. The two ends of the shaft are rotatably installed on the two side ends inside the shaft box. Two winches are fixedly installed on the outer wall of the shaft. A lifting cable is wound inside the winches. The lifting cable slides through the lower side of the shaft box and is fixedly connected to the upper end of the hanging scale. Cross arms are provided on the outer side of both ends of the shaft box. The two cross arms are respectively connected to the upper ends of the two vertical support frames.

[0006] A further feature of this invention is that connecting arms are fixedly provided on the outer sides of both ends of the shaft box, and the lower side of the end face of the connecting arm away from the shaft box is hinged to the lower side of the end face of the crossarm close to the shaft box.

[0007] A further feature of this invention is that a sliding hole is provided through the upper end of the vertical support frame, and each horizontal arm is slidably sleeved in the sliding holes on both sides. An anti-detachment flange is fixed to the end face of the horizontal arm away from the connecting arm.

[0008] A further feature of this invention is that a worm gear is fixedly sleeved on the outer side of the shaft, and worm adapter ears are fixedly provided on both sides of the upper end face of the shaft box. A worm is rotatably installed between the two worm adapter ears. The helical teeth on the outer side of the worm mesh with the worm gear, and one end of the worm is connected to the motor drive through a gear.

[0009] A further feature of this invention is that a horizontal support base plate is fixedly provided on the lower end face of the vertical support frame, and diagonal support plates are fixedly provided on the lower ends of the two sides of the vertical support frame, with the lower end face of the diagonal support plate fixedly connected to the upper end face of the horizontal support base plate.

[0010] A further feature of this invention is that a caster wheel is provided at each end of the lower end face of the cross brace base plate.

[0011] This utility model has the following beneficial effects: This utility model utilizes a portable gantry structure composed of axle box, crossarm, and vertical support frame, combined with casters at the bottom, to achieve rapid movement and deployment of weighing equipment. This allows users to move the scale above the object to be weighed without having to carry it, significantly improving the convenience and applicability of weighing operations.

[0012] This utility model uses a lifting drive assembly consisting of a shaft, winch, and lifting cable set in the shaft box to smoothly lift the crane scale and suspended objects, and achieves accurate weighing in conjunction with an electronic scale; the worm gear transmission mechanism has a self-locking function, ensuring stability and safety during the lifting process and static weighing, and effectively preventing the heavy objects from falling accidentally. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.

[0014] Figure 1 This is a schematic diagram of a portable gantry lifting electronic scale.

[0015] Figure 2This is an exploded view of the vertical support frame and the shaft box.

[0016] Figure 3 This is a front view of the shaft box and the crane scale.

[0017] Figure 4 This is a schematic diagram of the worm gear and shaft.

[0018] Figure 5 This is a structural diagram of the vertical support frame and casters.

[0019] The attached diagram lists the components represented by each number as follows: 1-Lifting drive assembly, 101-Shaft box, 101a-Crossarm arm, 101a-1-Anti-detachment flange, 101b-Connecting arm, 101c-Worm gear adapter ear, 102-Shaft, 102a-Windshaft, 102a-1-Lifting cable, 102b-Worm gear, 102c-Worm gear, 2-Hanging scale, 3-Vertical support frame, 301-Sliding hole, 302-Horizontal support base plate, 302a-Diagonal support plate, 302b-Universal wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] Please see Figures 1 to 5 This utility model is a portable gantry lifting electronic scale, including a lifting drive assembly 1, a hanging scale 2, and two vertical support frames 3; the lifting drive assembly 1 includes a shaft box 101 and a shaft 102, with both ends of the shaft 102 rotatably mounted on the side surfaces of both ends inside the shaft box 101, and two winches 102a fixed on the outer wall of the shaft 102, with a lifting cable 102a-1 wound inside the winches 102a, the lifting cable 102a-1 slidingly passing through the lower side surface of the shaft box 101 and connecting with the upper end surface of the hanging scale 2. With a fixed connection, crossarms 101a are respectively provided on the outer sides of both ends of the shaft box 101, and the crossarms 101a at both ends are respectively connected to the upper ends of the two vertical support frames 3. Through the portable gantry structure composed of shaft box 101, crossarms 101a and vertical support frames 3, combined with the universal wheels 302b at the bottom, the weighing equipment can be moved and deployed quickly, so that users can move the scale above the object to be weighed without carrying the object to be weighed, which significantly improves the convenience and applicability of weighing operation.

[0022] Specifically, connecting arms 101b are fixed to the outer sides of both ends of the shaft box 101. The lower side of the end face of the connecting arm 101b away from the shaft box 101 is hinged to the lower side of the end face of the crossarm 101a near the shaft box 101. This hinge structure allows the crossarm 101a to rotate and fold relative to the shaft box 101, greatly reducing the storage volume of the device when it is not in use and improving the portability and storage convenience of the device.

[0023] Furthermore, a sliding hole 301 is provided through the upper end of the vertical support frame 3, and each crossarm 101a is slidably sleeved in the sliding holes 301 on both sides. The end face of the crossarm 101a away from the connecting arm 101b is fixed with an anti-detachment flange 101a-1. The sliding fit between the crossarm 101a and the sliding hole 301 allows the gantry frame to retract. The anti-detachment flange 101a-1 effectively prevents the crossarm 101a from accidentally detaching from the vertical support frame 3, ensuring the reliability of the structure.

[0024] Furthermore, a worm gear 102b is fixedly sleeved on the outer side of the shaft 102, and worm adapter ears 101c are fixed on both sides of the upper end face of the shaft box 101. A worm 102c is rotatably installed between the two worm adapter ears 101c. The helical teeth on the outer side of the worm 102c mesh with the worm gear 102b, and one end of the worm 102c is connected to the motor drive through a gear. By adopting the transmission method of worm gear 102b and worm 102c, not only is a smooth power transmission achieved to control the lifting and lowering of the heavy object, but the self-locking characteristic of the mechanism is also utilized to prevent the shaft 102 from reversing due to the weight of the heavy object when the motor stops, thus ensuring the safety and stability of the weighing process.

[0025] Furthermore, a horizontal support base plate 302 is fixedly provided on the lower end face of the vertical support frame 3, and diagonal support plates 302a are fixedly provided on the lower ends of the two sides of the vertical support frame 3, with the lower end face of the diagonal support plate 302a fixedly connected to the upper end face of the horizontal support base plate 302. The horizontal support base plate 302 and the diagonal support plate 302a together form a stable bottom support structure, which significantly increases the contact area with the ground, effectively disperses the load, prevents the device from overturning during weighing, and ensures operational safety.

[0026] Furthermore, a caster wheel 302b is provided at each end of the lower end face of the cross brace base plate 302; the caster wheel 302b gives the entire device flexible mobility, and users can easily push the weighing system to different work locations, realizing a convenient working mode of "scale finds object" rather than "object finds scale", which is particularly suitable for use in warehouses, workshops and other occasions that require multi-point weighing.

[0027] The operation process of this embodiment is as follows: First, unfold the gantry structure, move the device to the vicinity of the object to be weighed via the universal wheels 302b, start the motor to drive the worm gear 102c to rotate, drive the worm wheel 102b and shaft 102 to rotate, so that the winch 102a releases the lifting cable 102a-1, and lowers the crane scale 2 to an appropriate height; after the hook of the crane scale 2 is hooked onto the object to be weighed, control the motor to reverse and wind the lifting cable 102a-1, and smoothly lift the object to a suspended state; after the reading of the crane scale 2 is stable, record the weighing result; after the weighing is completed, slowly lower the object, disassemble the hook, move the device away from the work area, slide the two vertical support frames 3 to the two end faces of the shaft box 101, so that the two vertical support frames 3 are attached to the two sides of the shaft box 101, so that the connecting arm 101b is sleeved through the sliding hole 301, and then fold the crossarm 101a downwards, so that the crossarm 101a on both sides is folded to reduce the space occupied.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A portable gantry lifting electronic scale, comprising a lifting drive assembly (1), a hanging scale (2), and two vertical support frames (3), characterized in that: The lifting drive assembly (1) includes a shaft box (101) and a shaft (102). The two ends of the shaft (102) are rotatably installed on the two side ends inside the shaft box (101). Two winches (102a) are fixed on the outer side wall of the shaft (102). A lifting cable (102a-1) is wound inside the winches (102a). The lifting cable (102a-1) slides through the lower side of the shaft box (101) and is fixedly connected to the upper end of the crane scale (2). A cross arm (101a) is provided on the outer side of both ends of the shaft box (101). The two cross arms (101a) are connected to the upper ends of two vertical support frames (3).

2. The portable gantry lifting electronic scale according to claim 1, characterized in that: Connecting arms (101b) are fixed on the outer sides of both ends of the shaft box (101). The lower side of the end face of the connecting arm (101b) away from the shaft box (101) is hinged to the lower side of the end face of the crossarm (101a) near the shaft box (101).

3. A portable gantry lifting electronic scale according to claim 2, characterized in that: The upper end of the vertical support frame (3) is provided with a sliding hole (301), and each of the cross arms (101a) is slidably sleeved in the sliding holes (301) on both sides. The end face of the cross arm (101a) away from the connecting arm (101b) is fixed with an anti-detachment flange (101a-1).

4. A portable gantry lifting electronic scale according to claim 1, characterized in that: A worm gear (102b) is fixedly sleeved on the outside of the shaft (102). Worm adapter ears (101c) are fixed on both sides of the upper end face of the shaft box (101). A worm (102c) is rotatably installed between the two worm adapter ears (101c). The helical teeth on the outside of the worm (102c) mesh with the worm gear (102b). One end of the worm (102c) is connected to the motor drive through a gear.

5. A portable gantry lifting electronic scale according to claim 1, characterized in that: The lower end face of the vertical support frame (3) is fixed with a horizontal support base plate (302), and the lower ends of the two sides of the vertical support frame (3) are respectively fixed with diagonal support plates (302a). The lower end face of the diagonal support plate (302a) is fixedly connected to the upper end face of the horizontal support base plate (302).

6. A portable gantry lifting electronic scale according to claim 5, characterized in that: A caster wheel (302b) is provided at each end of the lower end face of the cross brace base plate (302).

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