Telescopic platform scale

Abstract

The utility model provides a telescopic platform scale, which comprises a weighing base with an opening at the upper end, a weighing sensor arranged in the weighing base, a bearing frame movably arranged above the weighing sensor in the weighing base, a weighing bottom plate movably arranged at the upper end of the weighing base, and a weighing plate arranged above the weighing bottom plate, the middle of the weighing bottom plate is sunken downwards to form a limiting sliding groove, the lower end of the weighing plate is downwards provided with a limiting sliding block which extends into the limiting sliding groove and is in sliding connection with the limiting sliding groove, and a supporting spring is arranged between the bottom of the limiting sliding groove and the limiting sliding block; telescopic plates are slidably connected between the weighing bottom plate and the weighing plate and located on the left side and the right side of the limiting sliding groove, a plurality of supporting sliding strips perpendicular to the limiting sliding groove are arranged at the upper end of each telescopic plate at equal intervals, and limiting sliding strips which are slidably connected with the corresponding supporting sliding strips in a staggered mode are arranged at the positions, located on the left side and the right side of the limiting sliding block, of the lower end of the weighing plate. According to the utility model, the weighing platform can be adjusted according to requirements so as to meet the weighing requirements of different goods.

Description

Technical Field

[0001] This utility model belongs to the technical field of platform scales and relates to a telescopic platform scale. Background Technology

[0002] Platform scales, as an important weighing device, have a history dating back to the era of mechanical scales. Early platform scales primarily relied on lever principles and pulley systems to measure weight, converting the weight of the object being measured into readable data through physical balancing. While these traditional platform scales played a vital role in industrial and commercial transactions, they were bulky, complex to operate, and had limited accuracy. They required manual adjustments during use and were poor at detecting minute weight changes.

[0003] With the development of electronic and sensor technologies, electronic platform scales have gradually replaced traditional mechanical platform scales. Electronic platform scales utilize modern strain gauge or piezoelectric sensing technology to accurately convert the force applied to them (i.e., the weight of the object) into an electrical signal, which is then processed and displayed as a digital reading. Compared to traditional platform scales, electronic platform scales not only offer higher measurement accuracy and faster response times but also significantly simplify operation and enhance the user experience. Furthermore, electronic platform scales are typically equipped with data output interfaces, allowing for easy connection to computers or other data processing equipment for convenient data recording and analysis.

[0004] However, despite the excellent performance of electronic platform scales in many aspects, they still face some challenges in practical applications. In particular, when dealing with large or irregularly shaped objects, some large goods may be too large to fit on a standard-sized electronic platform scale, making them impossible to weigh. Utility Model Content

[0005] The purpose of this utility model is to provide a telescopic platform scale that can adjust the weighing platform according to needs to meet the weighing requirements of different goods.

[0006] To solve the above technical problems, this utility model provides a telescopic platform scale, including a weighing base with an open top, a weighing sensor installed inside the weighing base, a load-bearing frame movably installed above the weighing sensor inside the weighing base, a weighing base plate movably installed at the upper end of the weighing base, the lower end of the weighing base plate contacting the upper end of the load-bearing frame, a weighing plate installed above the weighing base plate, a limiting groove formed by a downward indentation in the middle of the weighing base plate, a limiting slider extending into and slidably connected to the limiting groove at the lower end of the weighing plate, and a supporting spring installed between the bottom of the limiting groove and the limiting slider.

[0007] The weighing base plate and the weighing plate are slidably connected on both sides of the limiting slide groove by telescopic plates that can slide outward. Each telescopic plate has multiple support slide bars perpendicular to the limiting slide groove at equal intervals on its upper end. Each support slide bar includes a support section located away from the limiting slide groove and a limiting section located close to the limiting slide groove. The height of the support section is greater than the thickness of the weighing plate than the height of the limiting section. The lower end of the weighing plate is provided with limiting slide bars on both sides of the limiting slide bar that are slidably connected to the corresponding support slide bars. The height of the limiting slide bars is not greater than the thickness of the limiting section.

[0008] By adopting the above technical solution, when it is not necessary to weigh large-volume items, the telescopic plate can be retracted to maintain a normal volume for weighing. During weighing, the weighing plate is compressed by the support spring, allowing it to press against the upper end of the support slide. Finally, the weight is transferred to the load-bearing frame through the weighing base plate, and the weight of the item is detected by the load cell. When it is necessary to weigh large-volume items, the two telescopic plates are pulled outward, so that the support section extends fully out of the weighing plate. After the item is placed on the weighing plate, its weight causes the weighing plate to compress the support spring downward, eventually making the weighing plate level with the support section. The item can then be placed stably on top of the weighing plate and the support section, and weighed using the load cell. After weighing, the item is removed, and the weighing plate rises under the action of the support spring. At this point, the telescopic plate can be retracted inward.

[0009] The present invention is further configured such that the weighing base plate is provided with connecting slide rails on both sides of the supporting slide rail and on both sides of each telescopic plate, and each telescopic plate is provided with connecting slide rails that are slidably connected to the corresponding connecting slide rails on both sides.

[0010] The present invention is further configured such that each connecting slide rail has an inwardly formed strip-shaped limiting groove on its outer side, and each connecting slide bar has an outwardly formed limiting block at one end near the limiting groove, which is slidably connected to the corresponding strip-shaped limiting groove.

[0011] The present invention is further provided that the bottom of the weighing base is provided with a limiting frame that cooperates with the load-bearing frame.

[0012] The present invention is further configured such that a connecting column is provided on one side of the weighing base perpendicular to the supporting slide bar, extending outward and upward; a display panel is provided at the upper end of the connecting column; an integrated circuit board is provided inside the display panel; and the weighing sensor is electrically connected to the integrated circuit board.

[0013] The present invention is further provided that each of the four corners of the weighing base is provided with a downward-facing support leg.

[0014] The present invention is further provided that each telescopic plate is provided with a handle on its outer edge.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, this utility model can freely expand and contract according to the volume of the item being weighed. When weighing small items, it maintains a small weighing area, does not occupy space, and is easy to move. When it is necessary to weigh larger items, the telescopic plate can be pulled out to assist in carrying the item, so that the item can be placed on the platform scale for weighing, thereby meeting the weighing needs of different goods.

[0017] Secondly, this utility model, through the elastic support of the support spring, allows the weighing plate to be pressed down to be flush with the support section after the telescopic plate is pulled outward and the item is placed on the weighing plate, with no height difference, so as to achieve more stable support and more stable weighing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of this utility model;

[0020] Figure 3 This is a diagram showing the usage state of this utility model;

[0021] Figure 4 Used to demonstrate the bottom structure of the weighing plate;

[0022] Figure 5 Used to demonstrate the overall structure of the weighing base plate;

[0023] Figure 6 Used to demonstrate the overall structure of the telescopic plate.

[0024] The components are as follows: 1. Weighing base; 2. Support leg; 3. Weighing sensor; 4. Load-bearing frame; 5. Limiting frame; 6. Connecting column; 7. Display panel; 8. Weighing base plate; 9. Weighing plate; 10. Limiting groove; 11. Limiting slider; 12. Support spring; 13. Telescopic plate; 14. Handle; 15. Support section; 16. Limiting section; 17. Limiting slider; 18. Connecting slide rail; 19. Connecting slider; 20. Strip-shaped limiting groove; 21. Limiting slider. Detailed Implementation

[0025] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the telescopic platform scale proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0026] Example, refer to Figure 1-6 A telescopic platform scale includes a rectangular weighing base 1 with an open top. Each of the four corners of the weighing base 1 has a downward-facing support leg 2. A weighing sensor 3 is installed inside the weighing base 1. An X-shaped support frame 4 is movably mounted above the weighing sensor 3 inside the weighing base 1. To ensure the stability of the support frame 4, four limiting frames 5 that cooperate with the support frame 4 are installed upward-facing at the bottom of the weighing base 1. A connecting post 6 is installed outwards and upwards on one side of the vertically supporting slide bar of the weighing base 1. A display panel 7 is installed at the upper end of the connecting post 6, and an integrated circuit board (not shown) is installed inside the display panel 7. The weighing sensor 3 is electrically connected to the integrated circuit board. A weighing base plate 8 is movably mounted on the upper end of the weighing base 1. The lower end of the weighing base plate 8 contacts the upper end of the load-bearing frame 4. A weighing plate 9 is mounted above the weighing base plate 8. A limiting groove 10 is formed by a downward indentation in the middle of the weighing base plate 8. A limiting slider 11 is mounted on the lower end of the weighing plate 9, extending into the limiting groove 10 and slidably connected thereto. Two supporting springs 12 are mounted between the bottom of the limiting groove 10 and the limiting slider 11.

[0027] Two outwardly sliding telescopic plates 13 are slidably connected between the weighing base plate 8 and the weighing plate 9 on both sides of the limiting slide groove 10. Each telescopic plate 13 has a handle 14 on its outer edge. Multiple support strips perpendicular to the limiting slide groove 10 are evenly spaced at the upper end of each telescopic plate 13. The elastic force of the support spring 12 can support the lower end of the weighing plate 9 upwards, exceeding the upper end of the limiting strip 17. Each support strip includes a support section 15 located away from the limiting slide groove 10, and a support... The height of the supporting section 15 of the near-limiting slide 10 is higher than the thickness of the weighing plate 9 than the height of the limiting section 16. The lower end of the weighing plate 9 is provided with multiple limiting slide bars 17 on both the left and right sides of the limiting slider 11, which are alternately slidably connected to the corresponding supporting slide bars. The height of the limiting slide bars 17 is not higher than the thickness of the limiting section 16, so that when the supporting section 15 extends outward, the weighing plate 9 can fall completely to the upper end of the limiting section 16 after being pressed. The upper end of the weighing plate 9 is parallel to the upper end of the supporting section 15. The weighing base plate 8 is provided with a connecting slide rail 18 on both sides of the supporting slide rail and on both sides of each telescopic plate 13. Each telescopic plate 13 is provided with a connecting slide rail 19 on both sides that is slidably connected to the corresponding connecting slide rail 18. Each connecting slide rail 18 has a strip-shaped limiting groove 20 that is provided inward on its outer side along its length direction. Each connecting slide rail 19 has a limiting block 21 that is slidably connected to the corresponding strip-shaped limiting groove 20 at one end near the limiting groove 10, so as to ensure the stability of the telescopic plate 13 during telescopic expansion and contraction.

[0028] Working principle: When it is not necessary to weigh large items, simply retract the telescopic plate 13 to maintain a normal volume for weighing. During weighing, the weighing plate 9 is compressed by the support spring 12, allowing it to press against the upper end of the support slide. Finally, the weight is transferred to the load-bearing frame 4 through the weighing base plate 8, and the weight of the item is detected by the weighing sensor 3. When it is necessary to weigh large items, pull the two telescopic plates 13 outward so that the support section 15 extends fully out of the weighing plate 9. After placing the item on the weighing plate 9, its weight causes the weighing plate 9 to compress the support spring 12 downward, eventually making the weighing plate 9 level with the support section 15. The item can then be placed stably on top of the weighing plate 9 and the support section 15, and weighed using the weighing sensor 3. After weighing, remove the item, and the weighing plate 9 rises under the action of the support spring 12. At this time, the telescopic plate 13 can be retracted inward.

[0029] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0030] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A telescopic platform scale comprising a weighing base (1) with an open upper end, a load cell (3) arranged in the weighing base (1), and a load support (4) movably arranged in the weighing base (1) above the load cell (3), characterized in that The upper end of the weighing base (1) is movably provided with a weighing bottom plate (8), the lower end of the weighing bottom plate (8) is in contact with the upper end of the load bearing frame (4), a weighing plate (9) is arranged above the weighing bottom plate (8), the middle part of the weighing bottom plate (8) is recessed downward to form a limiting sliding groove (10), the lower end of the weighing plate (9) is downwardly provided with a limiting sliding block (11) which extends into the limiting sliding groove (10) and is in sliding connection with the limiting sliding groove (10), and a supporting spring (12) is arranged between the bottom of the limiting sliding groove (10) and the limiting sliding block (11). The left and right sides of the limiting sliding groove (10) between the weighing bottom plate (8) and the weighing plate (9) are slidably connected with telescopic plates (13) which can slide outward, the upper end of each telescopic plate (13) is provided with a plurality of supporting sliding strips which are perpendicular to the limiting sliding groove (10) and are arranged at equal intervals, each supporting sliding strip comprises a supporting section (15) which is located away from the limiting sliding groove (10) and a limiting section (16) which is close to the limiting sliding groove (10), the height of the supporting section (15) is higher than the height of the limiting section (16) by the thickness of the weighing plate (9), the lower end of the weighing plate (9) is provided with limiting sliding strips (17) which are in staggered sliding connection with the corresponding supporting sliding strips on the left and right sides of the limiting sliding block (11), and the height of the limiting sliding strip (17) is not higher than the thickness of the limiting section (16).

2. A telescoping platform scale according to claim 1 wherein, The left and right sides of the supporting sliding strip of the weighing bottom plate (8) are provided with connecting sliding rails (18) on the left and right sides of each telescopic plate (13), and the left and right sides of each telescopic plate (13) are provided with connecting sliding strips (19) which are in sliding connection with the corresponding connecting sliding rails (18).

3. A telescoping platform scale according to claim 2, wherein, The outer side of each connecting sliding rail (18) is inwardly provided with a strip-shaped limiting groove (20) which is arranged along the length direction of the connecting sliding rail (18), and one end of each connecting sliding strip (19) which is close to the limiting sliding groove (10) is outwardly provided with a limiting block (21) which is in sliding connection with the corresponding strip-shaped limiting groove (20).

4. A telescoping platform scale according to claim 1 wherein, The bottom of the weighing base (1) is upwardly provided with a limiting frame (5) which is matched with the load bearing frame (4).

5. A telescoping platform scale according to claim 1 wherein, The side of the weighing base (1) which is perpendicular to the supporting sliding strip is outwardly and upwardly provided with a connecting column (6), the upper end of the connecting column (6) is provided with a display panel (7), the display panel (7) is provided with an integrated circuit board, the weighing sensor (3) is electrically connected with the integrated circuit board.

6. A telescoping platform scale according to claim 1 wherein, The four corners of the weighing base (1) are downwardly provided with supporting legs (2).

7. A telescoping platform scale according to claim 1 wherein, The outer edge of each telescopic plate (13) is provided with a handle (14).

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