Electronic weighing device

Abstract

The utility model relates to the technical field of weighing, in particular to an electronic weighing device. Comprising a base and a weighing sensor, the weighing sensor is arranged in the middle of the top end of the base, a weighing plate is installed at the upper end of the weighing sensor, one side of the base is connected with an electronic display instrument through a supporting rod, the electronic display instrument is electrically connected with the weighing sensor, and supporting pieces are installed at the four corners of the bottom of the base. The supporting piece comprises a U-shaped seat, lifting holes are formed in the two sides of the U-shaped seat, a supporting block is slidably installed in the U-shaped seat, connecting rods are fixedly connected to the two sides of the supporting block, and the connecting rods are slidably installed in the lifting holes; under the action of the connecting rod, the supporting block is driven to ascend or descend in the lifting hole along the U-shaped seat and the connecting rod, so that the balance of the weighing plate is adjusted, and the weighing accuracy is ensured; through mutual cooperation of the screw rod, the rotating shaft, the worm gear, the worm and other structures, stable lifting of the supporting block in the U-shaped seat and supporting of the weighing plate are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing, and particularly relates to an electronic weighing device. Background Art

[0002] Weighing is a tool for measuring the mass of an object. In the second half of the last century, with the continuous development of the electronics industry and non-electricity measurement technology, the weighing technology entered the era of electronic weighing. Electronic balances using electromagnetic principles have high weighing accuracy, stability, and accuracy. The classification of electronic weighing instruments includes counting scales, counting scales, bar code printing scales, electronic platform scales, electronic hanging scales, checkweighing electronic scales, large weighing scales, etc. Electronic scales are easy to use, with fast and intuitive displays, simple operations, and high metrological accuracy.

[0003] For existing electronic weighing devices, after being placed at a designated position, inaccurate weighing structures may occur due to uneven ground. Therefore, we introduce an electronic weighing device that can adjust the placement balance. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model provides an electronic weighing device that can ensure accurate weighing by adjusting the height of the bottom support.

[0005] To achieve the above technical purpose, the utility model proposes the following technical solution: An electronic weighing device includes a base and a weighing sensor. The weighing sensor is arranged in the middle of the top of the base. A weighing plate is installed at the upper end of the weighing sensor. One side of the base is connected to an electronic display instrument through a support rod. The electronic display instrument is electrically connected to the weighing sensor. Support members are installed at the four corners of the bottom of the base. The support member includes a U-shaped seat. Lifting holes are opened on both sides of the U-shaped seat. A support block is slidably installed in the U-shaped seat. Connecting rods are fixedly connected to both sides of the support block. The connecting rods are slidably installed in the lifting holes. Driving mechanisms for driving the connecting rods to move along the lifting holes are arranged on both sides of the U-shaped seat.

[0006] Further, grooves are opened on both sides of the U-shaped seat. The opening ends of the grooves are connected with covers. The driving mechanism includes screws respectively vertically arranged in the grooves. The screws are threadedly connected to one end of the connecting rod. A worm gear is arranged at the lower part of the screw. A rotating shaft is horizontally arranged at the lower part of the U-shaped seat. The two ends of the rotating shaft respectively pass through the two ends of the U-shaped seat and are provided with worm gears meshing with the worm gear.

[0007] Further, any one end of the rotating shaft passes through the cover and is connected with a rotating handle.

[0008] Further, sliding grooves are opened on both sides of the outer surface of the support block. Sliding blocks adapted to the sliding grooves are arranged on the inner wall of the U-shaped seat.

[0009] Furthermore, moving wheels are provided at the bottom of the U-shaped seat.

[0010] Furthermore, a level is installed on the upper end surface of the weighing plate.

[0011] Compared with the prior art, the beneficial effects produced by the present utility model are as follows: The structure of the present utility model is novel, ingeniously conceived, and simple and convenient to operate. Compared with the prior art, it has the following advantages: The present utility model judges the horizontal state of the weighing device according to the level, and adjusts the level of the weighing device in a timely manner; under the action of the connecting rod, the support block is driven to rise or fall along the U-shaped seat and the connecting rod in the lifting hole, so as to raise or lower the level of the weighing device, ensuring the accuracy of weighing; through the mutual cooperation of structures such as the screw, the rotating shaft, the worm gear and the worm, it can ensure the stable lifting of the support block in the U-shaped seat and the support of the weighing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the structural schematic diagram of the support member of the present utility model;

[0014] Figure 3 is the sectional structural schematic diagram of the present utility model;

[0015] In the figure, 1, base; 2, weighing plate; 3, support rod; 4, electronic display instrument; 5, support member; 501, U-shaped seat; 502, lifting hole; 503, support block; 504, connecting rod; 505, chute; 506, slider; 6, driving mechanism; 601, screw; 602, worm gear; 603, rotating shaft; 604, worm; 7, groove; 8, cover plate; 9, rotating handle; 10, moving wheel; 11, level. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following are specific embodiments of the present utility model, and the technical solutions of the present utility model will be further described in conjunction with the accompanying drawings, but the present utility model is not limited to these embodiments.

[0017] Such as Figures 1-3As shown in the figure, the utility model provides an electronic weighing device, which includes a base 1 and a weighing sensor. An installation groove is formed in the middle of the base 1, and the weighing sensor is fixed in the installation groove. A weighing plate 2 is installed on the top of the weighing sensor. One side of the base 1 is connected with an electronic display instrument 4 through a support rod 3, and the electronic display instrument 4 is electrically connected with the weighing sensor. Support members 5 are installed at the four corners of the bottom of the base 1. The support member 5 includes a U-shaped seat 501. Lifting holes 502 are formed on both sides of the U-shaped seat 501. A support block 503 is slidably installed in the U-shaped seat 501. The top of the support block 503 is detachably connected to the bottom of the base 1 through a bolt. Connecting rods 504 are fixedly connected to both sides of the support block 503. The connecting rods 504 and the support block 503 are integrally formed by casting. Compared with the fixed method of block setting and then welding, its structure is more stable and durable, reducing the possibility of fracture during use. The connecting rods 504 are slidably installed in the lifting holes 502, and a driving mechanism 6 for driving the connecting rods 504 to move along the lifting holes 502 is arranged on both sides of the U-shaped seat 501.

[0018] As Figure 1 and 2 shown in the figure, an object is placed on the weighing plate 2, and then the gravity of the object is transmitted to the weighing sensor through the weighing plate 2. The resistance value of the strain gauge in the weighing sensor changes, and a corresponding electrical signal is output. Finally, it is collected by the electronic display instrument 4 and converted into the weight information of the weighed object that can be intuitively identified. If the ground where the object is placed is uneven, the driving mechanism 6 can drive the support block 503 to rise or fall along the U-shaped seat 501 and the connecting rod 504 in the lifting hole 502 under the action of the connecting rod 504, so as to adjust the balance of the weighing plate 2 and ensure the accuracy of weighing.

[0019] Grooves 7 are formed on both sides of the U-shaped seat 501. The opening ends of the grooves 7 are connected with covers 8. The driving mechanism 6 includes screws 601 respectively vertically arranged in the grooves 7. The screws 601 are threadedly connected with one ends of the connecting rods 504. A worm gear 602 is arranged at the lower part of the screw 601. A rotating shaft 603 is horizontally arranged at the lower part of the U-shaped seat 501. Both ends of the rotating shaft 603 respectively pass through both ends of the U-shaped seat 501 and are provided with worm gears 604 meshing with the worm gear 602.

[0020] As Figure 2 and 3As shown, the cover plate 8 is installed at the open end of the groove 7 through bolts to seal the groove 7 and prevent impurities such as dust from entering the groove 7. The screw rod 601 is vertically and rotatably installed in the groove 7. By rotating the screw rod 601, the support block 503 is indirectly driven to rise or fall in the U-shaped seat 501. In this embodiment, by rotating the rotating shaft 603, the worm 604 rotates. The worm 604 drives the worm wheel 602 to rotate. When the worm wheel 602 rotates, the screw rod 601 rotates, driving the connecting rod 504 to displace in the lifting hole 502. By indirectly driving the support block 503 to move through the two screw rods 601 at the same time, the stable lifting of the support block 503 in the U-shaped seat 501 can be improved.

[0021] One end of any of the worms 604 passes through the cover plate 8 and is connected with a rotating handle 9.

[0022] As Figure 2 shown, the rotating handle 9 provides convenience for rotating the worm 604 and the rotating shaft 603.

[0023] Both sides of the outer surface of the support block 503 are provided with sliding grooves 505, and sliding blocks 506 adapted to the sliding grooves 505 are arranged on the inner wall of the U-shaped seat 501.

[0024] As Figure 2 shown, the support block 503 and the U-shaped seat 501 play a good guiding role under the action of the sliding grooves 505 and the sliding blocks 506, ensuring that the support block 503 does not deviate when rising or falling in the U-shaped seat 501.

[0025] Moving wheels 10 are arranged at the bottom of the U-shaped seat 501.

[0026] As Figure 2 shown, the function of the moving wheels 10 is to provide convenience for moving the electronic weighing device.

[0027] A level 11 is installed on the upper end surface of the weighing plate 2.

[0028] As Figure 1 shown, the function of the level 11 is to judge whether the electronic weighing device is balanced when placed, and the height of the support block 503 extending out of the U-shaped seat 501 can be adjusted according to the level 11.

[0029] Principle of use: Before weighing, the level 11 can be used to judge the horizontal state of the weighing plate 2, and the height of a certain support 5 can be adjusted according to the level 11. If the weighing plate 2 is uneven, the rotary handle 9 can be rotated to rotate the rotating shaft 603, so that the worm 604 on the rotating shaft 603 rotates. The worm 604 drives the worm wheel 602 to rotate, and the worm wheel 602 rotates to drive the screw 601 to rotate. As the screw 601 rotates, the connecting plate 504 on the screw 601 rises or falls along the lifting hole 502. Further, the support block 503 rises or falls along the slider 506. After adjusting the level, the item can be placed on the weighing plate 2, and then the gravity of the item is transmitted to the weighing sensor through the weighing plate 2. The resistance value of the strain gauge in the weighing sensor changes and outputs a corresponding electrical signal, which is finally collected by the electronic display instrument 4 and converted into the weight information of the weighing object that can be visually identified.

[0030] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An electronic weighing device, comprising a base (1) and a weighing sensor, characterized in that: The weighing sensor is arranged at the middle of the top of the base (1), a weighing plate (2) is installed at the upper end of the weighing sensor, one side of the base (1) is connected to an electronic display instrument (4) through a support rod (3), the electronic display instrument (4) is electrically connected to the weighing sensor, and support members (5) are installed at the four corners of the bottom of the base (1), the support member (5) comprises a U-shaped seat (501), both sides of the U-shaped seat (501) are provided with lifting holes (502), a support block (503) is slidably installed in the U-shaped seat (501), both sides of the support block (503) are fixedly connected with connecting rods (504), the connecting rods (504) are slidably installed in the lifting holes (502), and both sides of the U-shaped seat (501) are provided with driving mechanisms (6) for driving the connecting rods (504) to move along the lifting holes (502).

2. An electronic weighing device according to claim 1, characterized in that: Grooves (7) are provided on both sides of the U-shaped seat (501), and the open ends of the grooves (7) are connected to cover plates (8). The driving mechanism (6) comprises screw rods (601) respectively arranged vertically in the grooves (7), the screw rods (601) being threadedly connected to one end of a connecting rod (504), a worm gear (602) being provided at the bottom of the screw rods (601), and a rotating shaft (603) being horizontally provided at the bottom of the U-shaped seat (501), and worms (604) meshing with the worm gear (602) being provided at both ends of the rotating shaft (603) passing through the two ends of the U-shaped seat (501).

3. An electronic weighing device according to claim 2, characterized in that: One end of any one of the worm screws (604) passes through the cover plate (8) and is connected to a rotating handle (9).

4. An electronic weighing device according to claim 1, characterized in that: Slide grooves (505) are provided on both sides of the outer surface of the support block (503), and sliding blocks (506) matching the slide grooves (505) are provided on the inner wall of the U-shaped seat (501).

5. The electronic weighing device according to claim 1, characterized in that: The bottom of the U-shaped seat (501) is provided with a moving wheel (10).

6. An electronic weighing device according to claim 1, characterized in that: A level (11) is mounted on the upper end surface of the weighing plate (2).

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