Weighing device
By designing a weighing device including a frame, a draw rope, a weighing sensor, a hook and an anti-torsion device, the problem of cumbersome and inefficient weighing operation of heavy-duty glass cargo in the prior art is solved, and efficient and safe The cargo is lifted and weighed, ensuring measurement accuracy and safety.
Patent Information
- Application Number
- CN202420843659.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing heavy-duty glass cargo weighing technology is cumbersome and inefficient in operation, requiring frequent unloading of goods or multiple measurements, which leads to high time and manpower consumption, and there is a risk of cargo damage and weighing errors.
A weighing device is designed, including a frame, drawstring, weighing sensor, hook and anti-torsion device. It can be weighed by lifting the cargo, and the anti-torsion and anti-swing devices ensure measurement accuracy and safety, simplifying operation. process.
The device can significantly save time and labor costs, avoid cargo damage and weighing errors, improve operational safety and measurement accuracy, and ensure the authenticity and credibility of weighing data.
Smart Images
Figure CN222353345U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of weighing equipment, in particular to a weighing device. Background Art
[0002] Glass has been widely used due to its diverse properties. Glass can be used in the construction field as a decorative material for walls, ceilings, floors, etc., in the electronic equipment field as an electronic screen, and in the medical field as a test tube, objective lens and eyepiece in a microscope, infusion bottle, etc. Glass plays an indispensable role in people's daily life.
[0003] During glass production, especially during raw material preparation and batching, the raw materials need to be weighed. Heavy glass cargo is generally weighed using a floor scale, and there are mainly two weighing methods: the first is to unload the cargo onto the floor scale to weigh the weight of the cargo separately, such as the floor scale disclosed in patent CN220230689U; the second is to measure the total weight of the means of transport and the cargo, such as the vehicle, and then weigh the vehicle's own weight after unloading, and subtract the vehicle's own weight from the total weight to obtain the weight of the glass cargo, such as the weighing system disclosed in patent CN218724629U. Although floor scale weighing can meet basic weighing requirements to a certain extent, its operation process is quite cumbersome and inefficient. For the first weighing method, whenever heavy cargo needs to be weighed, the staff must first unload the cargo onto the ground. This process not only requires a lot of time and manpower, but may also cause cargo damage or weighing errors during handling. The second weighing method requires multiple measurements, adding additional operating steps to the operation process, which many people want to avoid.
[0004] Therefore, there is still a lot of room for improvement in the current heavy cargo weighing technology. Utility Model Content
[0005] The main purpose of the utility model is to provide a weighing device to solve the problem that the operation process of weighing heavy goods in the prior art is complicated and inefficient.
[0006] According to one aspect of the utility model, a weighing device is provided, the device comprising:
[0007] A frame, the frame comprising a base and an upper beam;
[0008] A pull rope, which is wound through the upper beam;
[0009] A weighing sensor is suspended below the pull rope;
[0010] a hook connected to the lower part of the load cell;
[0011] The anti-twist device has an upper end connected to the weighing sensor and a lower end connected to the hook so that the weighing sensor and the hook can rotate synchronously during weighing to avoid twisting between the hook and the weighing sensor.
[0012] According to one embodiment of the utility model, the anti-twist device includes an upper connecting rod and a lower connecting rod, the upper end of the upper connecting rod is connected to the weighing sensor, the lower end of the upper connecting rod is connected to the upper end of the lower connecting rod through a pin shaft, and the lower end of the lower connecting rod is connected to the hook.
[0013] According to an embodiment of the utility model, the upper end of the upper connecting rod is connected to the weighing sensor through a pin shaft, and the lower end of the lower connecting rod is connected to the hook through a pin shaft.
[0014] According to one embodiment of the utility model, the weighing device further includes an anti-swing device, and the anti-swing device includes:
[0015] A support plate, the upper surface of which is suspended at the lower end of the pull rope, the lower surface of which is connected to a weighing sensor, and the support plate moves up and down under the traction of the pull rope;
[0016] A telescopic rod, the lower end of which is connected to the support plate, the telescopic rod provides rigid support for the support plate and changes length as the support plate rises and falls;
[0017] The sleeve is sleeved on the upper beam, and the upper end of the telescopic rod is connected to the sleeve.
[0018] According to an embodiment of the utility model, the anti-swing device includes two telescopic rods and two sleeves distributed on both sides of the pull rope, and the lower ends of the two telescopic rods are connected to the two ends of the same support plate.
[0019] According to an embodiment of the utility model, the telescopic rod is a hydraulic telescopic rod or a scissor-type lifting frame.
[0020] According to an embodiment of the present invention, the weighing device further comprises a rope drum mounted on the base, one end of the pull rope is connected to the rope drum and is retracted or released as the rope drum rotates.
[0021] According to an embodiment of the utility model, the weighing device further comprises a motor for driving the rope drum to rotate.
[0022] According to an embodiment of the present utility model, the weighing sensor is a piezoresistive pressure sensor.
[0023] According to an embodiment of the utility model, the weighing device further comprises a roller sleeved on the upper beam, the pull rope is wound around the roller, and the outer periphery of the roller is provided with a guide groove for constraining the sliding of the pull rope.
[0024] Due to the adoption of the above technical scheme, the weighing device according to the utility model can lift and weigh the goods without unloading the goods to the ground, which can not only greatly save time and labor costs, but also effectively avoid potential risks of goods during loading and unloading. The weighing device according to the utility model has a simple structure and is easy to use and maintain. An anti-twist device is provided in the device to prevent the weighing sensor and the hook from twisting against each other and damaging the weighing sensor, thereby ensuring that the weighing sensor works in the best state and that the measured cargo data is authentic and reliable. In some embodiments, an anti-swing device is also provided to prevent the goods from swinging greatly during the process of lifting and weighing, thereby improving the operation safety and measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0026] Figure 1 The figure shows the overall structure of a weighing device according to an embodiment of the present utility model;
[0027] Figure 2 The figure shows an overall structural schematic diagram of a weighing device according to another embodiment of the utility model.
[0028] Description of Reference Numerals
[0029] 10. Frame; 12. Rope drum; 14. Pull rope; 16. Weighing sensor; 18. Anti-twist device; 18a. Upper connecting rod; 18b. Lower connecting rod; 18c. Pin shaft; 20. Hook; 22. Roller; 24. Anti-swing device; 24a. Support plate; 24b. Telescopic rod; 24c. Casing. DETAILED DESCRIPTION
[0030] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0031] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.
[0032] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.
[0033] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.
[0034] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0035] One object of the utility model is to provide a weighing device, which generally includes a frame, a pull rope, a weighing sensor, a hook and an anti-twist device. The frame includes a base and an upper beam, the pull rope is wound through the upper beam, the weighing sensor is suspended below the pull rope, the hook is connected to the lower part of the weighing sensor, and the upper end of the anti-twist device is connected to the weighing sensor and the lower end is connected to the hook so that the weighing sensor and the hook can rotate synchronously during weighing to avoid twisting between the hook and the weighing sensor.
[0036] According to the weighing device of the utility model, the goods are lifted and weighed, and there is no need to unload the goods to the ground, which can not only greatly save time and labor costs, but also effectively avoid potential risks in the process of loading and unloading goods. The weighing device has a simple structure and is easy to use and maintain. The device is also provided with an anti-twist device to prevent the weighing sensor and the hook from twisting against each other during weighing and damaging the weighing sensor, thereby ensuring that the weighing sensor works in the best state and that the measured cargo data is authentic and reliable.
[0037] Figure 1 FIG. 2 shows a schematic diagram of the overall structure of a weighing device according to a specific embodiment of the utility model. Figure 1 As shown, the weighing device generally includes a frame 10 , a pull rope 14 , a weighing sensor 16 , a hook 20 and an anti-twist device 18 .
[0038] The frame 10 is used to support other components. The frame 10 includes a base and an upper beam. In this embodiment, the base adopts a frame structure, and the bottom of the base is spliced into a square frame by four beams. A set of vertically extending trapezoidal frames are respectively connected to two opposite beams forming the bottom. The height of the trapezoidal frames is set so that the goods can be lifted from the transport and weighed in mid-air. The specific height can be determined according to the height of the transport and the packaging form of the goods. The upper beam is arranged between the two trapezoidal frames and the two ends are connected to the tops of the two trapezoidal frames.
[0039] The pull rope 14 is wound around the upper beam and is used to control the height of the hanging goods. The pull rope 14 can be, for example, a steel wire rope, a chain, etc.
[0040] A weighing sensor 16 may be connected to the lower end of the pull rope 14. The weighing sensor 16 is used to weigh the weight of the cargo. The weighing sensor 16 may include a housing, a lifting ring fixedly connected to the top of the housing, and a weight sensing element disposed in the housing. The lower end of the pull rope 14 may be fixed to the lifting ring. The lower end of the weight sensing element may be connected to a hook 20. The hook 20 is used to hook the cargo. For example, the upper end of the hook 20 is connected to the lower end of the weight sensing element. When the cargo is hooked on the hook 20, the hook 20 applies a force to the weight sensing element under the action of the cargo's gravity, and the weight sensing element determines the weight of the cargo based on the force.
[0041] The upper end of the anti-twist device 18 is connected to the weighing sensor 16 and the lower end is connected to the hook 20, so that the weighing sensor 16 and the hook 20 can rotate synchronously during weighing to avoid mutual twisting between the hook and the weighing sensor and damage to the weighing sensor 16.
[0042] In an optional embodiment, the anti-twist device 18 may adopt a connecting rod structure. Figure 1As shown, the anti-twist device 18 may include an upper connecting rod 18a and a lower connecting rod 18b. The upper end of the upper connecting rod 18a is connected to the weighing sensor 16. For example, the upper end of the upper connecting rod 18a may be connected to the lifting ring of the weighing sensor 16. The lower end of the upper connecting rod 18a is connected to the upper end of the lower connecting rod 18b through a pin, and the lower end of the lower connecting rod 18b is connected to the hook 20. By adopting such a connecting rod structure, the synchronous rotation of the weighing sensor 16 and the hook 20 can be achieved with a simple structure. Moreover, since the anti-twist device 18 adopts an upper connecting rod 18a and a lower connecting rod 18b and the two connecting rods are connected by a pin shaft, the length of the anti-twist device 18 (i.e., the distance between the upper end of the upper connecting rod 18a and the lower end of the lower connecting rod 18b) can be freely changed as the distance between the hook 20 and the lifting ring changes when measuring the goods, the mechanical property that the hinge does not transmit torque is fully utilized to ensure that the installation force at the end support of the anti-twist device 18 is away from the strain zone of the weighing sensor 16. During use, the eccentricity, bending and torsional loads caused by various additional forces cannot be transmitted to the strain zone, thereby improving the weighing accuracy.
[0043] In an optional embodiment, the upper end of the upper connecting rod 18a is connected to the weighing sensor 16 through a pin. For example, a lug can be provided on the outer periphery of the lifting ring of the weighing sensor 16, and a mounting hole can be provided on the lug. A mounting hole can be provided on the upper end of the upper connecting rod 18a. The pin passes through the mounting hole of the lifting ring lug and the mounting hole of the upper connecting rod 18a. The extension part of the end of the pin or a matching part such as a nut is used to fix the two ends of the pin, so that the weighing sensor 16 and the upper connecting rod 18a are rotatably connected together. The lower end of the lower connecting rod 18b can be similarly connected to the hook 20 through a pin 18c. By using a pin to rotatably connect the weighing sensor 16 and the upper connecting rod 18a together, and at the same time, the lower connecting rod 18b and the hook 20 are rotatably connected together, when the length of the anti-twist device 18 changes with the height of the hook 20, the stress of each connecting rod and other components at the connection point can be relieved.
[0044] Since the weighing device of the utility model is a weighing device that weighs the measured goods in a suspended state using a quasi-static weighing method, the measurement must be carried out in a gravity field and must be balanced. The swing of the goods may delay or even interfere with the measurement process. In order to solve this problem, in some optional embodiments, the weighing device of the utility model may also include an anti-swing device.
[0045] Figure 2 The overall structure diagram of a weighing device according to another embodiment of the utility model is shown. Figure 1 In addition to the frame 10 , the pull rope 14 , the weighing sensor 16 , the hook 20 and the anti-twist device 18 in the illustrated embodiment, an anti-swing device 24 is also provided.
[0046] The anti-sway device 24 generally includes a support plate 24a, a telescopic rod 24b and a sleeve 24c. The upper surface of the support plate 24a can be hung on the lower end of the pull rope 14 by a lifting ring, and the lower surface of the support plate 24a is connected to the weighing sensor 16. For example, a lifting ring can be provided on the lower surface of the support plate 24a, and the lifting ring of the weighing sensor 16 and the lifting ring of the support plate 24a can be buckled together. When the pull rope 14 is reeled in, the support plate 24a is pulled upward by the pull rope 14. When the pull rope 14 is released, the support plate 24a is moved downward by gravity. The sleeve 24c is sleeved on the upper beam. The upper end of the telescopic rod 24b is fixedly connected to the sleeve 24c. The lower end of the telescopic rod 24b is fixedly connected to the upper surface of the support plate 24a, and the telescopic rod 24b provides rigid support for the support plate 24a and changes its length as the support plate 24a rises and falls. Specifically, the telescopic rod 24b can be shortened as the support plate 24a moves upward, and can be lengthened as the support plate 24a moves downward, but the connection between the telescopic rod 24b and the sleeve 24c and its rigidity limit the swing of the support plate 24a, thereby preventing the suspended cargo from swinging.
[0047] By providing the anti-swing device 24, the swing amplitude of the cargo when being hoisted can be reduced, which not only enables the cargo to reach a quasi-static state faster, but also reduces the risk of accidents caused by cargo swinging, thereby improving operation safety and measurement accuracy.
[0048] In an optional embodiment, the anti-swing device 24 may further include two telescopic rods 24b and two sleeves 24c distributed on both sides of the pull rope 14, and the lower ends of the two telescopic rods 24b are connected to the two ends of the upper surface of the same support plate 24a. Such an arrangement enhances the balance stability of the anti-swing device 24 and the weighing sensor 16 connected thereto.
[0049] In an optional embodiment, the telescopic rod 24b can adopt an existing hydraulic telescopic rod or a scissor-type lifting frame, both of which are low-cost and easy to obtain.
[0050] In an optional embodiment, the weighing device may further include a rope drum 12 mounted on the base, for example, the rope drum 12 may be rigidly supported on the base by a bracket. The rope drum 12 is used to reel in and release the pull rope 14. One end of the pull rope 14 is fixedly connected to the rope drum 12. When the rope drum 12 rotates forward, the pull rope 14 is reeled in on the rope drum 12. When the rope drum 12 rotates reversely, the pull rope 14 is released from the rope drum 12. In other words, by controlling the rotation of the rope drum 12, the length of the pull rope 14 hanging the weighing sensor 16 can be controlled, so as to achieve convenient adjustment of the height of the cargo. In an optional embodiment, the weighing device further includes a motor (not shown) for driving the rope drum 12 to rotate. For example, the rotating shaft of the rope drum 12 may be connected to the output shaft of the motor via a coupling so as to use the motor to drive the rope drum 12 to rotate, thereby reducing the labor intensity of the operator.
[0051] In an optional embodiment, the weighing sensor 16 can adopt a piezoresistive pressure sensor. The piezoresistive pressure sensor is provided with a resistance strain type weighing module inside its shell, and the resistance strain type weighing module mainly includes an elastic element and a resistance strain gauge. The structural form of the elastic element can be cylindrical, cantilever beam, shear beam, S-beam, parallelogram, etc. The resistance strain gauge is pasted on the surface of the elastic element that is deformed during measurement. The upper end of the hook 20 can be connected to the lower end of the elastic element. When the hook 20 is hooked with goods, the hook 20 pulls the elastic element downward under the action of the gravity of the goods to deform the elastic element. The resistance wire of the resistance strain gauge changes its resistance value as the elastic element is deformed, thereby changing the impedance, and at the same time changing the excitation voltage, outputting a changing analog signal. The AD circuit of the sensor modulates, amplifies, filters, samples, and integrates the analog signal sent by the sensor, and outputs a stable and efficient digital signal. The digital signal can be sent to the central microprocessor (CPU) of the weighing sensor 16 via a communication line or to the controller equipped with the weighing device via a wireless transceiver. The CPU or controller controls the internal working program to display the weight value of the measured object through the display circuit. Piezoresistive pressure sensors have high accuracy, good stability, fast response speed and simple structure.
[0052] In an optional embodiment, the weighing device further includes a roller 22 mounted on the upper beam, the pull rope 14 is wound around the roller 22, and a guide groove is provided on the outer periphery of the roller 22 to constrain the sliding of the pull rope 14. When the pull rope 14 slides on the roller 22, it will be constrained by the guide groove to ensure that its sliding process is stable and orderly. Such a design effectively reduces the friction and loss of the pull rope 14 during the sliding process.
[0053] In an optional embodiment, the weighing device further includes a controller (not shown), which may include a processor and a memory in communication connection. The controller may communicate with the weighing sensor 16 via a wired or wireless connection to receive a digital signal sent by the weighing sensor 16. The processor may process the digital signal to determine a corresponding weight value, and the memory may store the digital signal and the corresponding weight value for subsequent viewing.
[0054] When using the device for weighing, the goods to be weighed are placed against the frame 10, the hook 20 is above the goods to be weighed, the motor is started to drive the rope drum 12 to rotate, so that the hook 20 falls, and after the goods are hung on the hook 20, the motor is reversed to make the hook 20 rise and lift the goods. After the goods are completely lifted, wait for a while, and after the weighing sensor 16 transmits the weighing data to the controller of the weighing device, the hook 20 is dropped to make the goods return to the original position, and the weighing process is ended.
[0055] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0057] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A weighing device, characterized in that: include: A frame (10), the frame (10) comprising a base and an upper beam; A pull rope (14), the pull rope (14) being wound around the upper beam; A weighing sensor (16), wherein the weighing sensor (16) is suspended below the pull rope (14); A hook (20) connected to the lower part of the weighing sensor (16); An anti-twist device (18), the upper end of which is connected to the weighing sensor (16) and the lower end of which is connected to the hook (20), so that the weighing sensor (16) and the hook (20) rotate synchronously during weighing to avoid torsion between the hook (20) and the weighing sensor (16).
2. The weighing device according to claim 1, characterized in that: The anti-twist device (18) comprises an upper connecting rod (18a) and a lower connecting rod (18b), wherein the upper end of the upper connecting rod (18a) is connected to the weighing sensor (16), the lower end of the upper connecting rod (18a) is connected to the upper end of the lower connecting rod (18b) via a pin, and the lower end of the lower connecting rod (18b) is connected to the hook (20).
3. The weighing device according to claim 2, characterized in that: The upper end of the upper connecting rod (18a) is connected to the weighing sensor (16) through a pin shaft (18c), and the lower end of the lower connecting rod (18b) is connected to the hook (20) through a pin shaft (18c).
4. The weighing device according to claim 1, characterized in that: The weighing device further comprises an anti-swing device (24), wherein the anti-swing device (24) comprises: A support plate (24a), wherein the upper surface of the support plate (24a) is suspended on the lower end of the pull rope (14), the lower surface of the support plate (24a) is connected to the weighing sensor (16), and the support plate (24a) moves up and down under the traction of the pull rope (14); A telescopic rod (24b), the lower end of which is connected to the support plate (24a), the telescopic rod (24b) providing rigid support for the support plate (24a) and changing its length as the support plate (24a) is raised or lowered; A sleeve (24c), wherein the sleeve (24c) is sleeved on the upper beam, and the upper end of the telescopic rod (24b) is connected to the sleeve (24c).
5. The weighing device according to claim 4, characterized in that: The anti-sway device (24) comprises two telescopic rods (24b) and two sleeves (24c) distributed on both sides of the pull rope (14), and the lower ends of the two telescopic rods (24b) are connected to the two ends of the same support plate (24a).
6. The weighing device according to claim 4, characterized in that: The telescopic rod (24b) is a hydraulic telescopic rod or a scissor-type lifting frame.
7. The weighing device according to claim 1, characterized in that: The weighing device further comprises a rope drum (12) mounted on the base, one end of the pull rope (14) is connected to the rope drum (12) and is wound up or released as the rope drum (12) rotates.
8. The weighing device according to claim 7, characterized in that: The weighing device also includes a motor for driving the rope drum (12) to rotate.
9. The weighing device according to claim 1, characterized in that: The weighing sensor (16) is a piezoresistive pressure sensor.
10. The weighing device according to claim 1, characterized in that: The weighing device further comprises a roller (22) sleeved on the upper beam, the pull rope (14) is wound around the roller (22), and a guide groove for restricting the pull rope (14) from sliding is provided on the outer periphery of the roller (22).