Electronic scale with anti-overload function
By introducing motor -driven worm and worm systems in the electronic scale, two -way thread rods and displacement board movement is driven, supporting the contact board to provide support, solving the problem of overload damage of electronic scale, realizing the safety and weighing accuracy of the equipment, weighing accuracy of weighing accuracy Guarantee.
Patent Information
- Application Number
- CN202420768410.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-15
AI Technical Summary
Existing automotive electronic scales are prone to damage when overloaded, resulting in reduced weighing accuracy or equipment damage, and high maintenance costs.
Design an electronic scale with anti -loading function, drive the worm and worm system to rotate through the motor, drive the two -way thread rod and the displacement board, and gradually push the contact board to provide additional support for the electronic scale to avoid overload damage.
Effectively avoid the damage and maintenance costs caused by overloaded electronic scale, ensure the stability of the weight accuracy, and avoid damage to the vehicle above.
Smart Images
Figure CN222419254U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic scales, in particular to an electronic scale with an overload protection function. Background Art
[0002] The automotive electronic scale is a vehicle-mounted weighing device that is integrated with the vehicle's mechanical control part to achieve weighing while the vehicle is moving. It monitors the predetermined weighing position through a proximity switch and converts the hydraulic pressure into the weight of the load in the bucket to achieve weighing.
[0003] Due to the wide variety of automobiles, the weight difference among them is also very different. When weighing some heavier vehicles, it is possible to exceed the upper limit of the electronic scale, which may cause damage to the electronic scale, resulting in problems with subsequent weighing accuracy, and even directly cause damage to the electronic scale. Once damaged, the repair and time costs are extremely high. In view of this, we propose an electronic scale with an overload protection function. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an electronic scale with an overload protection function, which can solve the problem of damage caused by overload of the electronic scale.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an electronic scale with an anti-overload function, comprising a base, the interior of the base is arranged to be hollow, a sliding groove is opened on the upper surface of the base, the sliding groove extends into the interior of the base, the bottom wall of the base is fixedly connected to a motor, the output end of the motor is fixedly connected to a worm, the inner wall of the base is rotatably connected to a second worm, the outer surface of the second worm is meshingly connected to a worm wheel, the outer surface of the worm wheel is meshingly connected to the outer surface of the worm, the inner wall of the base is rotatably connected to two bidirectional threaded rods, the adjacent ends of the two bidirectional threaded rods are fixedly connected, a second worm wheel is sleeved at the intersection of the two bidirectional threaded rods, the outer surface of the second worm wheel is meshingly connected to the second worm, displacement plates are respectively threadedly sleeved at two opposite threaded sections of the two bidirectional threaded rods, the displacement plate is slidably connected to the sliding groove, the upper surface of the displacement plate extends out of the upper side of the sliding groove, the upper surface of the displacement plate is fixedly connected to a support plate, the upper side surface of the support plate is rotatably connected to a contact plate, and a protective component is arranged on the upper surface of the base.
[0006] Preferably, the protection component includes a sliding seat, which is slidably connected to the upper surface of the base, and a second sliding groove is provided on the upper surface of the base. The lower surface of the sliding seat extends into the interior of the second sliding groove and is slidably connected to the second sliding groove. A ball groove is provided on the upper surface of the sliding seat, and a movable ball is provided on the internal movable sleeve of the ball groove. The outer surface of the movable ball is fixedly connected to a mounting seat, and a measuring sensor is fixedly connected to the upper surface of the mounting seat. The upper end of the measuring sensor is fixedly connected to a second movable ball. A scale surface is provided above the base, and a ball groove is also provided on the lower surface of the scale surface, and the second movable ball is adapted to the upper ball groove.
[0007] Preferably, four protection components are arranged on the base, and the left surfaces of the two sliding seats on the right are fixedly connected with push plates, and the right surfaces of the two sliding seats on the left are also fixedly connected with push plates.
[0008] Preferably, two mounting plates are fixedly connected to the upper surface of the base, and a second bidirectional threaded rod is rotatably connected to one side surface of the two mounting plates that is adjacent to each other.
[0009] Preferably, the two push plates are respectively threadedly sleeved on two opposite threads of the second bidirectional threaded rod.
[0010] Preferably, a protective sleeve is provided on the outer surface rotation sleeve of the second bidirectional threaded rod, and the outer surface of the protective sleeve is fixedly connected to the upper surface of the base.
[0011] Preferably, a third worm gear is sleeved on the outer surface of the second bidirectional threaded rod, the upper end of the worm rotates to penetrate the upper surface of the base, and the outer surface of the worm is meshedly connected with the third worm gear.
[0012] Preferably, the measuring sensor is electrically connected to the motor.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] (1) The electronic scale with an overload protection function, when the electronic scale is overloaded, the motor drives the worm to rotate, and the worm rotates and synchronously drives the worm wheel to rotate, and the worm wheel rotates and synchronously drives the second worm to rotate, and the second worm drives the two bidirectional threaded rods to rotate through the second worm wheel. When the two bidirectional threaded rods rotate, the displacement plate is restricted by the sliding groove in the movement trajectory, so when the bidirectional threaded rods rotate, the displacement plate is synchronously driven to move, and the displacement plate moves and drives the support plate to move, and the support plate gradually becomes perpendicular to the ground after the movement, and then lifts up the contact plate, and the contact plate provides support for the electronic scale after it is lifted up. Through the above structure, when the electronic scale is overloaded, the motor can be triggered and the contact plate can be used to provide support for the electronic scale, thereby avoiding the support component from being broken due to overload, not only avoiding sudden falling and causing damage to the vehicle above, but also avoiding the energy and money consumed in repairing the support component after it is broken.
[0015] (2) The electronic scale with an overload protection function drives the worm to rotate through a motor, and the worm rotates and synchronously drives the worm wheel to rotate. The worm wheel rotates and synchronously drives the second worm to rotate. The second worm drives two bidirectional threaded rods to rotate through the second worm wheel. When the two bidirectional threaded rods rotate, the displacement plate is restricted by the sliding groove in its movement trajectory. Therefore, when the bidirectional threaded rods rotate, the displacement plate is synchronously driven to move. After the displacement plate moves, the support plate is driven to move. After the support plate moves, it gradually becomes perpendicular to the ground, and then lifts up the contact plate. After the contact plate is lifted up, it provides support for the electronic scale. Through the above structure, when the electronic scale is overloaded, the motor can be triggered and the contact plate can be used to provide support for the electronic scale, thereby avoiding the support component from breaking due to overload. This not only avoids damage to the vehicle above due to a sudden fall, but also avoids the energy and money consumed in repairing the support component after it breaks. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention is further described below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a structural schematic diagram of an electronic scale with an overload protection function according to the utility model;
[0018] Figure 2 It is a schematic diagram of the upper surface of the base of the utility model;
[0019] Figure 3 This is a schematic diagram of the measuring sensor of the utility model;
[0020] Figure 4 This is a schematic diagram of a motor of the utility model.
[0021] Figure numerals: 1. base; 2. sliding groove; 3. motor; 4. worm; 5. second worm; 6. worm wheel; 7. bidirectional threaded rod; 8. second worm wheel; 9. displacement plate; 10. support plate; 11. contact plate; 12. second sliding groove; 13. sliding seat; 14. movable ball; 15. mounting seat; 16. measuring sensor; 17. second movable ball; 18. weighing surface; 19. push plate; 20. mounting plate; 21. second bidirectional threaded rod; 22. protective cover; 23. third worm wheel. DETAILED DESCRIPTION
[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0023] See also Figure 1-4The utility model provides a technical solution: an electronic scale with an overload prevention function, comprising a base 1, the interior of the base 1 is set to be hollow, a sliding groove 2 is opened on the upper surface of the base 1, the sliding groove 2 extends into the interior of the base 1, a motor 3 is fixedly connected to the bottom wall of the base 1, a worm 4 is fixedly connected to the output end of the motor 3, a second worm 5 is rotatably connected to the inner wall of the base 1, a worm wheel 6 is meshedly connected to the outer surface of the second worm 5, and the outer surface of the worm wheel 6 is meshedly connected to the outer surface of the worm 4, two bidirectional threaded rods 7 are rotatably connected to the inner wall of the base 1, the two bidirectional threaded rods 7 are fixedly connected at one end thereof, a second worm wheel 8 is sleeved at the intersection of the two bidirectional threaded rods 7, the outer surface of the second worm wheel 8 is meshedly connected to the second worm 5, a displacement plate 9 is respectively threadedly sleeved at two opposite threads of the two bidirectional threaded rods 7, the displacement plate 9 is slidably connected to the sliding groove 2, the upper surface of the displacement plate 9 extends out of the upper side of the sliding groove 2, a support plate 10 is fixedly connected to the upper surface of the displacement plate 9, and the upper surface of the support plate 10 The surface is rotatably connected with a contact plate 11, and a protection component is arranged on the upper surface of the base 1. When the electronic scale is overloaded, the worm 4 is driven to rotate by the motor 3. After the worm 4 rotates, the worm wheel 6 is synchronously driven to rotate. After the worm wheel 6 rotates, the second worm 5 is synchronously driven to rotate. The second worm 5 drives the two bidirectional threaded rods 7 to rotate through the second worm wheel 8. When the two bidirectional threaded rods 7 rotate, since the displacement plate 9 is limited in its movement trajectory by the sliding groove 2, the displacement plate 9 is synchronously driven to move when the bidirectional threaded rod 7 rotates. After the displacement plate 9 moves, the support plate 10 is driven to move. After the support plate 10 moves, it gradually becomes perpendicular to the ground, and then lifts up the contact plate 11. After the contact plate 11 is lifted up, it provides support for the electronic scale. Through the above structure, when the electronic scale is overloaded, the motor 3 can be triggered and the contact plate 11 can be finally used to provide support for the electronic scale, thereby avoiding the support component from being broken due to overload. This not only avoids damage to the vehicle above due to a sudden fall, but also avoids the energy and money consumed in repairing the support component after it is broken.
[0024] Furthermore, the protection component includes a sliding seat 13, which is slidably connected to the upper surface of the base 1, and the upper surface of the base 1 is provided with a second sliding groove 12, and the lower surface of the sliding seat 13 extends into the second sliding groove 12 and is slidably connected to the second sliding groove 12, and the upper surface of the sliding seat 13 is provided with a ball groove, and the inner movable sleeve of the ball groove is provided with a movable ball 14, and the outer surface of the movable ball 14 is fixedly connected to a mounting seat 15, and the upper surface of the mounting seat 15 is fixedly connected to a measuring sensor 16, and the upper end of the measuring sensor 16 is fixedly connected to a second movable ball 17, and a scale surface 18 is provided above the base 1, and the lower surface of the scale surface 18 is also provided with a ball groove, and the second movable ball 1 7 is adapted to the ball groove above, and four protection components are arranged on the base 1. The left surfaces of the two sliding seats 13 on the right are fixedly connected with push plates 19, and the right surfaces of the two sliding seats 13 on the left are also fixedly connected with push plates 19. The upper surface of the base 1 is fixedly connected with two mounting plates 20, and the second bidirectional threaded rod 21 is rotatably connected to the surface of the two mounting plates 20 on one side. The two push plates 19 are respectively threadedly sleeved at two opposite threads of the second bidirectional threaded rod 21, and the outer surface of the second bidirectional threaded rod 21 is rotatably sleeved with a protective sleeve 22, and the outer surface of the protective sleeve 22 is fixedly connected to the upper surface of the base 1, and the outer surface of the second bidirectional threaded rod 21 is sleeved with a third worm gear 23, the upper end of the worm 4 rotates to penetrate the upper surface of the base 1, the outer surface of the worm 4 is meshed with the third worm gear 23, the measuring sensor 16 is electrically connected to the motor 3, and when the weight on the scale surface 18 exceeds the threshold value set by the measuring sensor 16, the measuring sensor 16 transmits a signal to the motor 3, and when the motor 3 lifts the contact plate 11, it will also synchronously drive the third worm gear 23 to rotate through the worm 4, and after the third worm gear 23 rotates, it will synchronously drive the second bidirectional threaded rod 21 to rotate, and when the second bidirectional threaded rod 21 rotates, it is supported by the protective cover 22 and the mounting plate 20, and at the same time, because the sliding seat 13 is limited in motion trajectory by the second sliding groove 12, When the threaded rod 21 rotates, the push plate 19 will be used to synchronously drive the sliding seat 13 to move. After the sliding seat 13 moves, since the second movable ball 17 and the movable ball 14 are respectively provided on the upper and lower sides of the measuring sensor 16, the measuring sensor 16 will gradually be in a tilted state after the sliding seat 13 moves, so that the measuring sensor 16 is no longer under force, and is instead supported by the synchronously rising contact plate 11. Through the above structure, the measuring sensor 16 can be automatically tilted after the weight carried on the scale surface 18 exceeds a threshold value, so that the measuring sensor 16 is no longer under force, thereby improving the safety of the measuring sensor 16 and avoiding the problem of excessive force causing malfunction or subsequent inaccurate measurement.
[0025] Working principle: When the electronic scale is overloaded, the motor 3 drives the worm 4 to rotate, and the worm 4 rotates and then drives the worm wheel 6 to rotate synchronously, and the worm wheel 6 rotates and then drives the second worm 5 to rotate synchronously, and the second worm 5 drives the two bidirectional threaded rods 7 to rotate through the second worm wheel 8. When the two bidirectional threaded rods 7 rotate, the displacement plate 9 is restricted by the sliding groove 2 in its movement trajectory, so when the bidirectional threaded rod 7 rotates, the displacement plate 9 is synchronously driven to move, and the displacement plate 9 moves and then drives the support plate 10 to move, and the support plate 10 gradually becomes perpendicular to the ground after moving, and then lifts the contact plate 11, and the contact plate 11 provides support for the electronic scale after being lifted up, and when the weight on the scale surface 18 exceeds the threshold value set by the measuring sensor 16, the measuring sensor 16 transmits a signal to the electronic scale. Machine 3, motor 3 is started, so that the third worm gear 23 is driven to rotate through the worm 4, and the third worm gear 23 rotates and synchronously drives the second bidirectional threaded rod 21 to rotate. When the second bidirectional threaded rod 21 rotates, it is supported by the protective cover 22 and the mounting plate 20. At the same time, since the movement trajectory of the sliding seat 13 is limited by the second sliding groove 12, the push plate 19 is synchronously used to drive the sliding seat 13 to move when the second bidirectional threaded rod 21 rotates. After the sliding seat 13 moves, since the second movable ball 17 and the movable ball 14 are respectively provided on the upper and lower sides of the measuring sensor 16, the measuring sensor 16 will gradually be in a tilted state after the sliding seat 13 moves, so that the measuring sensor 16 is no longer subjected to force, and is instead supported by the synchronously raised contact plate 11.
[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. An electronic scale with an overload protection function, comprising a base (1), characterized in that: The interior of the base (1) is arranged to be hollow, a sliding groove (2) is provided on the upper surface of the base (1), the sliding groove (2) extends into the interior of the base (1), a motor (3) is fixedly connected to the bottom wall of the base (1), a worm (4) is fixedly connected to the output end of the motor (3), a second worm (5) is rotatably connected to the inner wall of the base (1), a worm wheel (6) is meshedly connected to the outer surface of the second worm (5), the outer surface of the worm wheel (6) is meshedly connected to the outer surface of the worm (4), and two bidirectional threaded rods (7) are rotatably connected to the inner wall of the base (1), the two bidirectional threaded rods (7) are mutually engaged. The proximal end is fixedly connected, a second worm gear (8) is sleeved at the intersection of the two bidirectional threaded rods (7), the outer surface of the second worm gear (8) is meshedly connected with the second worm (5), and displacement plates (9) are respectively sleeved at two opposite threaded portions of the two bidirectional threaded rods (7), the displacement plates (9) are slidably connected to the sliding groove (2), the upper surface of the displacement plates (9) extends out of the upper side of the sliding groove (2), the upper surface of the displacement plates (9) is fixedly connected to a support plate (10), the upper side surface of the support plate (10) is rotatably connected to a contact plate (11), and a protective component is arranged on the upper surface of the base (1).
2. The electronic scale with overload protection function according to claim 1, characterized in that: The protection component comprises a sliding seat (13), the sliding seat (13) is slidably connected to the upper surface of the base (1), the upper surface of the base (1) is provided with a second sliding groove (12), the lower surface of the sliding seat (13) extends into the interior of the second sliding groove (12) and is slidably connected to the second sliding groove (12), the upper surface of the sliding seat (13) is provided with a ball groove, the inner movable sleeve of the ball groove is provided with a movable ball (14), the outer surface of the movable ball (14) is fixedly connected to a mounting seat (15), the upper surface of the mounting seat (15) is fixedly connected to a measuring sensor (16), the upper end of the measuring sensor (16) is fixedly connected to a second movable ball (17), a scale surface (18) is arranged above the base (1), the lower surface of the scale surface (18) is also provided with a ball groove, and the second movable ball (17) is adapted to the upper ball groove.
3. The electronic scale with overload protection function according to claim 2, characterized in that: Four protection components are arranged on the base (1), the left side surfaces of the two right sliding seats (13) are fixedly connected with push plates (19), and the right side surfaces of the two left sliding seats (13) are also fixedly connected with push plates (19).
4. The electronic scale with overload protection function according to claim 1, characterized in that: Two mounting plates (20) are fixedly connected to the upper surface of the base (1), and a second bidirectional threaded rod (21) is rotatably connected to one side surface of the two mounting plates (20) that is adjacent to each other.
5. The electronic scale with overload protection function according to claim 3, characterized in that: The two push plates (19) are respectively threadedly sleeved on two opposite threads of the second bidirectional threaded rod (21).
6. The electronic scale with overload protection function according to claim 5, characterized in that: The outer surface of the second bidirectional threaded rod (21) is rotatably sleeved with a protective sleeve (22), and the outer surface of the protective sleeve (22) is fixedly connected to the upper surface of the base (1).
7. The electronic scale with overload protection function according to claim 6, characterized in that: The outer surface of the second bidirectional threaded rod (21) is sleeved with a third worm gear (23); the upper end of the worm (4) rotates to penetrate the upper surface of the base (1); and the outer surface of the worm (4) is meshedly connected with the third worm gear (23).
8. The electronic scale with overload protection function according to claim 2, characterized in that: The measuring sensor (16) is electrically connected to the motor (3).