A shock absorbing reset structure for an electronic scale

Abstract

The utility model provides a kind of shock-absorbing reset structure for electronic scale, it is related to electronic scale technical field, including mobile base, and the self-locking universal wheel of rectangular array distribution is fixedly installed below mobile base, the upper portion of mobile base is provided with shock-absorbing mechanism, and shock-absorbing mechanism includes buffer air cylinder, the lower end of multiple buffer air cylinders is fixedly connected in the upper end of mobile base with rectangular array distribution, the inner wall of buffer air cylinder movably sleeve joint has piston block, the upper end of piston block is fixedly connected with buffer rod, the upper end of multiple buffer rods is penetrated buffer air cylinder and is equally fixedly installed with electronic scale body, by the cooperation of shock-absorbing mechanism and supporting mechanism, it is realized when moving to the road of jolt, can effectively shock-absorbing buffering is carried out to electronic scale body, avoid the damage of electronic component caused by vibration, improve service life, and by stable support to electronic scale body, it is improved in the effect of the stability of the article weighing.

Description

Technical Field

[0001] This utility model relates to the field of electronic scale technology, and in particular to a shock-absorbing and reset structure for electronic scales. Background Technology

[0002] An electronic scale is a type of weighing instrument that uses Hooke's Law or the lever balance principle of forces to determine the mass of an object. Based on their structural principles, they can be divided into three main categories: mechanical scales, electronic scales, and electromechanical scales. Electronic scales employ modern sensor technology, electronic technology, and computer technology to integrate electronic weighing devices, thus meeting and solving the real-world requirements of "fast, accurate, continuous, and automatic" weighing. They also effectively eliminate human error, making them more suitable for legal metrological management and industrial production process control applications. However, existing mobile electronic scales experience significant vibrations during transport, especially on uneven or bumpy surfaces. This vibration can damage internal components and greatly reduce their lifespan.

[0003] For example, a shock-absorbing device for an industrial digital display electronic scale disclosed in Chinese patent literature (publication number: CN214538215U) uses a buffer component. When walking on a relatively bumpy road, the scale body shakes vertically. The buffer rod pushes the slider to slide, and the spring inside the slide groove has a buffering effect. The spring provides the opposite force, thereby reducing the impact of vibration and reducing the impact of road bumps. This avoids damage to the internal components of the scale body and ensures the service life of the product.

[0004] However, relying solely on springs to cushion the electronic scale has significant drawbacks. On one hand, the spring's rebound force after deformation under compression can easily cause frequent vibrations, making it difficult to achieve ideal shock absorption. This means the electronic scale will still suffer strong impacts on bumpy roads, failing to effectively protect internal components from damage and thus hindering the extension of the product's lifespan. Furthermore, the small contact area between the support column and the electronic scale body makes it unable to provide stable support. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies. Currently, springs alone cannot effectively buffer and dampen the electronic scale body, and the support area of ​​the support column is small, which can easily lead to unstable support.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shock-absorbing and resetting structure for an electronic scale includes a movable base. A rectangular array of self-locking casters is fixedly installed below the movable base. A shock-absorbing mechanism, comprising buffer air cylinders, is located above the movable base. The lower ends of multiple buffer air cylinders are fixedly connected to the upper end of the movable base in a rectangular array. A piston block is movably fitted onto the inner wall of each buffer air cylinder. A buffer rod is fixedly connected to the upper end of the piston block. The upper ends of multiple buffer rods penetrate the buffer air cylinders and are all fixedly mounted with the electronic scale body. A buffer spring is fixedly connected to the upper end of each buffer air cylinder, and one end of the buffer spring is fixedly connected to the lower end of the electronic scale body.

[0008] The buffer cylinder has an air inlet on its exterior, and an exhaust pipe is fixedly connected to the exterior of the buffer cylinder. A one-way valve is installed on the exterior of the exhaust pipe.

[0009] The upper end of the movable base is provided with a mounting groove, and a support mechanism is provided inside the mounting groove.

[0010] Preferably, the support mechanism includes a bidirectional lead screw, one end of which is rotatably connected to the rear inner wall of the mounting groove via a bearing.

[0011] Preferably, the other end of the bidirectional lead screw passes through the mounting groove and extends to the front of the movable base, and a drive turntable is fixedly connected to the other end of the bidirectional lead screw.

[0012] Preferably, the external thread of the bidirectional lead screw is connected with symmetrically distributed threaded blocks, and the outer side of the threaded blocks is slidably connected to the inner wall of the mounting groove.

[0013] Preferably, the upper end of the threaded block is fixedly connected to a first support, and the inner wall of the first support is hinged to a support rod by a pin.

[0014] Preferably, one end of the support rod is hinged to a second support via a pin, and the upper ends of both second supports are fixedly connected to a support plate.

[0015] Preferably, the lower end of the support plate is fixedly connected to a guide rod arranged in a rectangular array, and one end of each of the guide rods passes through and extends to the lower end of the movable base.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the combined use of the shock-absorbing mechanism and the support mechanism effectively dampens and buffers the electronic scale body when it is moved to a bumpy road surface, preventing damage to electronic components caused by vibration and extending its service life. Furthermore, by providing stable support for the electronic scale body, the stability of weighing items is improved. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a shock-absorbing and resetting structure for an electronic scale provided by this utility model;

[0019] Figure 2 A perspective view of a movable base structure for a shock-absorbing and resetting structure of an electronic scale provided by this utility model;

[0020] Figure 3 A three-dimensional view of a bidirectional lead screw structure for a shock-absorbing and resetting structure of an electronic scale, provided by this utility model;

[0021] Figure 4 A perspective view of a shock-absorbing and resetting structure for an electronic scale provided by this utility model.

[0022] Legend: 1. Movable base; 2. Self-locking caster wheel; 3. Buffer air cylinder; 31. Piston block; 32. Buffer rod; 33. Electronic scale body; 34. Buffer spring; 35. Air inlet; 36. Exhaust pipe; 37. One-way valve; 4. Mounting slot; 41. Two-way lead screw; 42. Drive turntable; 43. Threaded block; 44. First support; 45. Support rod; 46. Second support; 47. Support plate; 48. Guide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example

[0028] like Figure 1-4 As shown, this utility model provides a technical solution: a shock-absorbing and resetting structure for electronic scales, including a movable base 1, with self-locking casters 2 arranged in a rectangular array fixedly installed below the movable base 1. This design greatly facilitates the movement and positioning of the electronic scale.

[0029] A shock-absorbing mechanism is provided above the mobile base 1, and the shock-absorbing mechanism includes a buffer air cylinder 3. The lower ends of multiple buffer air cylinders 3 are arranged in a rectangular array and fixedly connected to the upper end of the mobile base 1. This layout makes the buffer force evenly distributed and effectively improves the stability of the shock absorption effect.

[0030] A piston block 31 is movably sleeved on the inner wall of the buffer cylinder 3. A buffer rod 32 is fixedly connected to the upper end of the piston block 31. The upper ends of multiple buffer rods 32 pass through the buffer cylinder 3 and are all fixedly installed with the electronic scale body 33. A buffer spring 34 is fixedly connected to the upper end of the buffer cylinder 3. One end of the buffer spring 34 is fixedly connected to the lower end of the electronic scale body 33. The buffer spring 34 serves as the first line of defense, which can initially absorb vibration energy. Together with the subsequent work of the buffer cylinder 3, it forms a double buffer protection.

[0031] An air inlet 35 is provided on the outside of the buffer air cylinder 3, and an exhaust pipe 36 is fixedly connected to the outside of the buffer air cylinder 3. A one-way valve 37 is provided on the outside of the exhaust pipe 36. The one-way valve 37 restricts the air intake of the exhaust pipe 36, thereby reducing the reset speed of the buffer spring 34.

[0032] The upper end of the mobile base 1 is provided with a mounting groove 4, and a support mechanism is provided inside the mounting groove 4.

[0033] The support mechanism includes a double-acting lead screw 41. One end of the double-acting lead screw 41 is rotatably connected to the rear inner wall of the mounting groove 4 through a bearing. The bearing is selected with high wear resistance and low friction coefficient to ensure that the double-acting lead screw 41 rotates flexibly and smoothly, reduce energy loss, and extend service life.

[0034] The other end of the bidirectional lead screw 41 passes through the mounting groove 4 and extends to the front of the movable base 1. The other end of the bidirectional lead screw 41 is fixedly connected to the drive turntable 42. The surface of the drive turntable 42 is designed with anti-slip texture to increase the friction between the hand and the turntable, making it easier for the operator to apply force and easily realize the rotation control of the bidirectional lead screw 41.

[0035] The external threaded connection of the bidirectional lead screw 41 has symmetrically distributed threaded blocks 43. The outer side of the threaded blocks 43 is slidably connected to the inner wall of the mounting groove 4. The inner wall of the mounting groove 4 provides a smooth sliding track for the threaded blocks 43, restricts their rotational freedom, and ensures the accuracy of the movement direction.

[0036] The upper end of the threaded block 43 is fixedly connected to a first support 44. The inner wall of the first support 44 is hinged to a support rod 45 by a pin. The first support 44, as a force transfer component, has sufficient strength and stability to ensure that the movement of the threaded block 43 is converted into an effective support force.

[0037] One end of the support rod 45 is hinged to a second support 46 via a pin. The upper ends of both second supports 46 are fixedly connected to support plates 47. The second supports 46 can work together with the support rod 45 to flexibly change the support height. The support plates 47 are made of large-area, high-strength sheet material, which increases the contact area with the electronic scale body 33, evenly distributes the support force, and effectively prevents the electronic scale body 33 from being deformed by local pressure.

[0038] The lower end of the support plate 47 is fixedly connected to a guide rod 48 arranged in a rectangular array. One end of each guide rod 48 passes through and extends to the lower end of the movable base 1. During the lifting and lowering of the support plate 47, the guide rod 48 plays a precise guiding role, avoiding instability such as offset or swaying of the support plate 47, and ensuring the reliability of the support.

[0039] The working process of this utility model:

[0040] Step 1: When the staff pushes the mobile base 1 to move, when it encounters a bumpy road surface, the downward impact of the electronic scale body 33 is buffered by the buffer spring 34, and the piston block 31 moves downward through the buffer rod 32. The movement of the piston block 31 will compress the gas inside the buffer cylinder 3, so that it is discharged synchronously through the exhaust pipe 36 and the air inlet 35. When the buffer spring 34 drives the electronic scale body 33 to reset and rise, due to the restriction of the one-way valve 37, the air inlet 35 is allowed to enter alone, which will reduce the reset speed of the piston block 31 driving the buffer rod 32, thereby avoiding the vibration generated when the electronic scale body 33 rises rapidly.

[0041] Step two, when moved to the designated position for use, the drive turntable 42 drives the bidirectional lead screw 41 to rotate. The rotation of the bidirectional lead screw 41, through the cooperation of the mounting groove 4, causes the two threaded blocks 43 to drive the first support 44 to move relative to each other. The movement of the first support 44, through the cooperation of the support rod 45, causes the second support 46 to drive the support plate 47 to rise. The guide rod 48 is used to assist the support plate 47 to rise stably so that it fits against the lower end of the electronic scale body 33 for stable support.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing and resetting structure for an electronic scale, comprising a movable base (1), characterized in that: The mobile base (1) is fixedly installed with self-locking casters (2) arranged in a rectangular array below it. The mobile base (1) is provided with a shock-absorbing mechanism, which includes a buffer air cylinder (3). The lower ends of multiple buffer air cylinders (3) are arranged in a rectangular array and fixedly connected to the upper end of the mobile base (1). A piston block (31) is movably sleeved on the inner wall of the buffer air cylinder (3). A buffer rod (32) is fixedly connected to the upper end of the piston block (31). The upper ends of multiple buffer rods (32) pass through the buffer air cylinder (3) and are all fixedly installed with an electronic scale body (33). A buffer spring (34) is fixedly connected to the upper end of the buffer air cylinder (3). One end of the buffer spring (34) is fixedly connected to the lower end of the electronic scale body (33). The buffer cylinder (3) has an air inlet (35) on its outside, and an exhaust pipe (36) is fixedly connected to the outside of the buffer cylinder (3). A one-way valve (37) is provided on the outside of the exhaust pipe (36). The upper end of the movable base (1) is provided with an installation groove (4), and a support mechanism is provided inside the installation groove (4).

2. The shock-absorbing and resetting structure for an electronic scale according to claim 1, characterized in that: The support mechanism includes a bidirectional lead screw (41), one end of which is rotatably connected to the rear inner wall of the mounting groove (4) via a bearing.

3. The shock-absorbing and resetting structure for an electronic scale according to claim 2, characterized in that: The other end of the bidirectional lead screw (41) passes through the mounting groove (4) and extends to the front of the movable base (1). The other end of the bidirectional lead screw (41) is fixedly connected to a drive turntable (42).

4. The shock-absorbing and resetting structure for an electronic scale according to claim 2, characterized in that: The external thread of the bidirectional lead screw (41) is connected to symmetrically distributed threaded blocks (43), and the outside of the threaded blocks (43) is slidably connected to the inner wall of the mounting groove (4).

5. The shock-absorbing and resetting structure for an electronic scale according to claim 4, characterized in that: The upper end of the threaded block (43) is fixedly connected to a first support (44), and the inner wall of the first support (44) is hinged to a support rod (45) by a pin.

6. The shock-absorbing and resetting structure for an electronic scale according to claim 5, characterized in that: One end of the support rod (45) is hinged to a second support (46) by a pin, and the upper ends of the two second supports (46) are fixedly connected to a support plate (47).

7. The shock-absorbing and resetting structure for an electronic scale according to claim 6, characterized in that: The lower end of the support plate (47) is fixedly connected to a guide rod (48) arranged in a rectangular array, and one end of each of the guide rods (48) passes through and extends to the lower end of the movable base (1).

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