Electronic scale bearing mechanism and electronic scale assembly

Abstract

The utility model provides an electronic scale bearing mechanism and an electronic scale assembly, and relates to the technical field of electronic products, and the electronic scale bearing mechanism comprises a scale bottom shell, a metal support frame and support legs. The scale bottom shell is provided with an avoiding hole. The metal supporting frame is fixed to the scale bottom shell, the supporting legs are directly installed on the metal supporting frame, the supporting legs are arranged in the avoiding holes in a penetrating mode and protrude out of the bottom of the scale bottom shell, and the outer circumferential faces of the supporting legs and the hole walls of the avoiding holes are spaced to form annular anti-contact spaces. When the electronic scale assembly is used for weighing, the force transmission link can be reduced, the measurement error is reduced, and the measurement precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic products, in particular to an electronic scale bearing mechanism and an electronic scale assembly. Background Art

[0002] Electronic scales, such as commercial electronic scales, often have a supporting base made of steel pipes or steel plates. The end of the base is a bent structure with a bottom shell as an intermediary. The bent structure, force transmission nut, plastic bottom shell, rubber feet, and other components form a local force system, which together with the sensor, load-bearing frame, and object to be measured form a force balance system. This type of structure has the advantages of low cost and a high market share of the entire machine. However, due to the differences in material thermal properties in the above-mentioned local force system and the defect of affecting the linearity of the entire machine's force measurement system when adjusting the height of the rubber feet, it is easy to cause insufficient temperature performance of the entire machine and increase the error of tilt testing, which is usually difficult to meet the requirements of national standards. That is, the force transmission path of traditional electronic scales is weighing object-scale plate-upper load frame-sensor-lower load frame-force transmission nut-bottom shell-rubber feet. Among them, the bottom shell is a link in the force transmission. Since the bottom shell is generally made of plastic material, it is greatly affected by temperature and there is deformation during the force transmission process, which affects the weighing accuracy. It can also be understood that the existing technology uses the bottom shell as a force transmission link, resulting in an increase in the force transmission chain, an increase in measurement error, and a decrease in measurement accuracy. Utility Model Content

[0003] The purpose of the utility model includes providing an electronic scale bearing mechanism and an electronic scale assembly, which can reduce force transmission links, reduce measurement errors, and improve measurement accuracy.

[0004] The embodiment of the present utility model can be implemented as follows:

[0005] In a first aspect, the utility model provides an electronic scale carrying mechanism, comprising:

[0006] A scale bottom shell, a metal support frame and support feet, the scale bottom shell is provided with an avoidance hole; the metal support frame is fixed to the scale bottom shell, the support feet are directly mounted on the metal support frame, the support feet are passed through the avoidance hole and protrude from the bottom of the scale bottom shell, and the outer peripheral surface of the support feet is spaced apart from the hole wall of the avoidance hole to form an annular anti-contact space.

[0007] In an optional embodiment, the metal support frame and the support legs are configured as an integrated structure.

[0008] Based on the above solution, the metal support frame and the support legs are firmly and reliably combined, have a long service life, and reduce the assembly process and steps, thereby improving assembly efficiency.

[0009] In an optional embodiment, the metal support frame is fixed to the support legs by riveting or welding.

[0010] Based on the above solution, the metal support frame and the support legs can be connected in various ways, which can be selected as needed and are easy to assemble.

[0011] In an optional embodiment, the metal support frame includes a bearing plate and two supporting members, the two supporting members are fixedly connected to the bearing plate and are symmetrically arranged, and each of the supporting members is fixed with two supporting feet arranged at intervals.

[0012] Based on the above solution, the four supporting legs cooperate to support it, which has high stability, is not easy to tilt or fall during use, is safe to use, and has high measurement accuracy.

[0013] In an optional embodiment, the supporting plate has a first side, a second side, a third side and a fourth side connected end to end in sequence, the first side and the third side are arranged opposite to each other, the second side and the fourth side are arranged opposite to each other, the first side and the third side are both provided with a first folded edge bent in a preset direction, each of the first folded edges defines a fixing groove, and the support member is snapped into the corresponding fixing groove; a second folded edge bent in the preset direction is provided on one of the second side and the fourth side, and the two sides of the second folded edge are respectively blocked at the notch of the fixing groove.

[0014] Based on this solution, each support member is secured by the fixing groove on the first folded edge, providing a simple fixing method and convenient positioning of the support member. After the support member is firmly held by the first folded edge, it can be further secured by welding or other methods, thereby enhancing the secure connection between the support member and the load plate. Furthermore, the second folded edge blocks the notch of the fixing groove, making it difficult for the support member to escape from the notch, ensuring a stable and reliable position of the support member.

[0015] In an optional embodiment, the support member is configured as a metal tube or a metal plate.

[0016] Based on the above solution, the support parts are of various forms, can be processed and manufactured on demand, and have a wide range of applications.

[0017] In an optional embodiment, a positioning through hole is provided on the support member, the supporting foot is inserted into the positioning through hole, and the supporting foot and the positioning through hole are relatively fixed in the axial direction of the positioning through hole.

[0018] Based on the above solution, the support legs are positioned using positioning through holes to facilitate installation.

[0019] In an optional embodiment, the positioning through hole is configured as a strip-shaped hole.

[0020] Based on the above solution, the support foot can be fine-tuned in position along the length direction of the positioning through hole in the positioning through hole, and the installation of the support foot is more convenient and flexible.

[0021] In an optional embodiment, the support foot includes a rivet nut, a screw and a rubber foot body, the rivet nut is passed through the avoidance through hole and is fixedly connected to the support member, the rivet nut is passed through the avoidance hole and forms the annular anti-contact space with the hole wall of the avoidance hole; one end of the screw is screwed and fixed in the threaded hole of the rivet nut, and the other end of the screw is inserted and fixed in the rubber foot body, and the rubber foot body protrudes from the bottom of the scale bottom shell.

[0022] Based on the above solution, the rivet nut is first fixed to the support member, and then the screw is screwed into the threaded hole of the rivet nut, which is convenient for operation. In addition, by rotating the screw, the distance between the rubber foot body and the rivet nut can be adjusted, thereby achieving height adjustment of the rubber foot body. The support surfaces of multiple rubber foot bodies can be adjusted to the same plane, thereby improving the stability of the support.

[0023] In a second aspect, the present invention provides an electronic scale assembly, comprising:

[0024] The electronic scale supporting mechanism comprises a scale surface shell, an upper support frame, an upper support leg, a sensor module, a scale pan and any one of the aforementioned embodiments; the scale surface shell is connected to the scale bottom shell; the upper support frame and the metal support frame are both connected to the sensor module, the upper support leg is connected to the upper support frame and extends out of the scale surface shell, and the scale pan is mounted on the upper support leg.

[0025] The beneficial effects of the electronic scale bearing mechanism and the electronic scale assembly provided by the embodiment of the utility model include:

[0026] In summary, the electronic scale support mechanism provided in this embodiment directly connects the support legs to the metal support frame. The support legs are inserted into the avoidance holes of the scale bottom shell. There is a gap between the circumference of the support legs and the wall of the avoidance hole. The support legs do not directly contact the scale bottom shell. During weighing, gravity is transmitted to the metal support frame through the sensor module, and then directly to the support legs, without transmitting force through the scale bottom shell. This reduces the force transmission link, reduces errors, and improves measurement accuracy. At the same time, because the support legs do not contact the scale bottom shell, deformation of the scale bottom shell due to high temperature will not affect the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic structural diagram of the electronic scale assembly provided in this embodiment;

[0029] Figure 2 A schematic cross-sectional view of the electronic scale assembly provided in this embodiment;

[0030] Figure 3 for Figure 2 A schematic diagram of a partially enlarged structure in FIG;

[0031] Figure 4 A schematic structural diagram of the electronic scale supporting mechanism provided in this embodiment;

[0032] Figure 5 A schematic structural diagram of the metal support frame provided in this embodiment;

[0033] Figure 6 This is a schematic diagram of the deformed structure of the electronic scale supporting mechanism provided in this embodiment.

[0034] icon:

[0035] 100-scale bottom shell; 101-avoidance hole; 200-metal support frame; 210-carrying plate; 220-support member; 221-flat portion; 222-positioning through hole; 230-first folding edge; 231-fixing groove; 240-second folding edge; 300-support foot; 310-rivet nut; 320-screw; 330-rubber foot body; 001-scale surface shell; 002-upper support frame; 003-sensor module; 004-scale pan. DETAILED DESCRIPTION

[0036] In existing technology, the nuts that mount the rubber feet are typically fixed to the bottom shell, which is typically made of plastic and has strong deformability. During the weighing process, the force transmission chain includes the bottom shell. A long force transmission chain can lead to large errors in weighing results. Furthermore, the deformation of the bottom shell caused by high temperatures can also affect weighing accuracy.

[0037] In view of this, the designer provides an electronic scale bearing mechanism that can reduce force transmission links, shorten the force transmission chain, reduce weighing errors, and improve the accuracy of weighing results.

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0042] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0043] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0044] Please combine Figures 1-6 In this embodiment, the electronic scale supporting mechanism includes a scale bottom shell 100, a metal support frame 200, and support legs 300. The scale bottom shell 100 is provided with an avoidance hole 101. The metal support frame 200 is fixed to the scale bottom shell 100, and the support legs 300 are directly mounted on the metal support frame 200. The support legs 300 are inserted into the avoidance hole 101 and protrude from the bottom of the scale bottom shell 100. The outer peripheral surface of the support legs 300 is spaced apart from the wall of the avoidance hole 101 to form an annular anti-contact space.

[0045] As described above, the electronic scale supporting mechanism provided in this embodiment works as follows:

[0046] During the weighing process, the weight of the object to be weighed is transmitted through the sensor to the metal support frame 200, and then directly to the support legs 300 without passing through the scale bottom shell 100. This reduces the number of force transmission links, reduces errors, and improves measurement accuracy. Furthermore, the support legs 300 are inserted into the avoidance holes 101 of the scale bottom shell 100. There is a gap between the peripheral surface of the support legs 300 and the wall of the avoidance holes 101. Therefore, the support legs 300 do not directly contact the scale bottom shell 100. Deformation of the scale bottom shell 100 due to high temperatures will not affect the support stability of the support legs 300, nor will it adversely affect the measurement results.

[0047] The following embodiments illustrate the details of the electronic scale supporting mechanism of the present application by way of examples.

[0048] Please combine Figure 1 In this embodiment, the electronic scale supporting mechanism includes a scale bottom shell 100, a metal support frame 200, and four support legs 300. The metal support frame 200 is connected to the scale bottom shell 100, and the four support legs 300 are directly connected to the metal support frame 200 and do not contact the scale bottom shell 100.

[0049] With such a design, during weighing, the gravity transmitted from the metal support frame 200 will not be transmitted to the scale bottom shell 100, but will be directly transmitted to the support legs 300. By reducing the force transmission links and shortening the force transmission chain, the weighing error is reduced and the accuracy of the weighing results is improved.

[0050] Optionally, four avoidance holes 101 are provided at the bottom of the scale bottom shell 100. Each avoidance hole 101 can be configured as a circular hole, and the diameter of each avoidance hole 101 can be configured as needed. For example, when the support leg 300 is inserted into the avoidance hole 101, the distance between the outer circumference of the support leg 300 and the hole wall of the avoidance hole 101 is 3-5 mm, that is, the distance between the inner and outer circles of the annular anti-contact space is 3-5 mm. For example, the distance between the outer circumference of the support leg 300 and the hole wall of the avoidance hole 101 can be 3 mm, 4 mm, or 5 mm, etc.

[0051] In this embodiment, optionally, the metal support frame 200 includes a supporting plate 210 and two supporting members 220 . The two supporting members 220 are fixedly connected to the supporting plate 210 and are symmetrically arranged. Two support legs 300 arranged at intervals are fixed on each supporting member 220 .

[0052] Please combine Figure 5Optionally, the carrier plate 210 can be a metal plate, and the carrier plate 210 has a first side, a second side, a third side, and a fourth side connected end to end in sequence. The first side and the third side are arranged opposite to each other, and the second side and the fourth side are arranged opposite to each other. The first side and the third side are both provided with a first folded edge 230 bent in a preset direction. Each first folded edge 230 defines a fixing groove 231, and the support member 220 is snapped into the corresponding fixing groove 231. Both the second side and the fourth side are provided with a second folded edge 240 bent in a preset direction, and the two sides of the second folded edge 240 are respectively blocked at the notch of the fixing groove 231. Before assembly, the second folded edge 240 is in an unfolded state. The second folded edge 240 can be in the same plane with the supporting plate 210. The second folded edge 240 will not block the notch of the fixing groove 231. At this time, each support member 220 is first inserted into the corresponding fixing groove 231 from the notch of the fixing groove 231. After the insertion is completed, the second folded edge 240 is bent toward the preset direction, and the two sides of the second folded edge 240 can be used to respectively cover the notches of the two opposite fixing grooves 231, which is convenient to operate.

[0053] Please combine Figure 4 and Figure 6 It should be understood that the support member 220 can be configured as a metal tube or a metal plate. For example, when the support member 220 is configured as a metal tube, the metal tube can be a circular tube, and the corresponding fixing groove 231 is an arc-shaped groove. The outer circumference of the metal tube is in close contact with the groove wall of the fixing groove 231, and the fit is firm and reliable. After the support member 220 and the first folded edge 230 are engaged, the two can be welded and fixed. When the support member 220 is a metal plate, the fixing groove 231 can be a rectangular groove. After the support member 220 is engaged with the fixing groove 231, the two can be welded and fixed or fixed by screws, rivets, or other structures.

[0054] In addition, in other embodiments, the second folded edge 240 may be provided on only one of the second side or the fourth side, and the second folded edge 240 can also shield the notches of the two fixing grooves 231. When there are two second folded edges 240, the notches at two positions in the longitudinal direction of the fixing groove 231 can be shielded, thereby achieving good shielding and anti-slip effects.

[0055] It is worth noting that when the metal part is set as a metal tube, in order to facilitate the installation of the support leg 300, a flat portion 221 can be set at the end of the metal tube. For example, part of the metal part can be flattened by stamping, and the flattened position forms a plate-like structure. For example, in this embodiment, a flat portion 221 is provided at both ends of each support member 220, and each flat portion 221 corresponds to a fixed support leg 300. At the same time, each flat portion 221 is provided with a positioning through hole 222. The positioning through hole 222 can be a bar-shaped hole. The support leg 300 can be passed through the positioning through hole 222. The positioning through hole 222 is used to position the support leg 300. Before the support leg 300 is fixed, the position can be fine-tuned in the positioning through hole 222 along the length direction of the positioning through hole 222 to facilitate the installation of the support leg 300.

[0056] Please combine Figure 2 and Figure 3 In this embodiment, optionally, the support leg 300 includes a rivet nut 310, a screw 320, and a rubber foot body 330. The rivet nut 310 is inserted into the avoidance through-hole and fixedly connected to the support member 220. The rivet nut 310 is inserted into the avoidance hole 101 and forms an annular anti-contact space with the hole wall of the avoidance hole 101. The distance between the outer peripheral surface of the portion of the rivet nut 310 located in the avoidance hole 101 and the hole wall of the avoidance hole 101 is 3-5 mm. One end of the screw 320 is screwed and fixed into the threaded hole of the rivet nut 310, and the other end of the screw 320 is inserted and fixed into the rubber foot body 330. The rubber foot body 330 protrudes from the bottom of the scale bottom shell 100. During assembly, the rivet nut 310 is first fixed to the support member 220, the flat portion 221 is clamped and fixed by the rivet nut 310, and then the screw 320 is screwed into the threaded hole of the rivet nut 310. Furthermore, by rotating the screw 320, the distance between the adhesive pin body 330 and the rivet nut 310 can be adjusted, thereby adjusting the height of the adhesive pin body 330. The support surfaces of multiple adhesive pin bodies 330 can be aligned, thereby improving the stability of the support.

[0057] It should be understood that the rivet nut 310 can be a pull rivet nut or a pressure rivet nut.

[0058] In addition, the rubber foot body 330 may be injection molded outside the screw 320 .

[0059] It should be understood that in other embodiments, the support member 220 can be directly integrally formed with the metal support frame 200, and the two are configured as an integrated structure with high structural strength, eliminating the assembly process and improving assembly efficiency.

[0060] In addition, the support member 220 can also be fixedly connected to the metal support frame 200 through welding or other processes.

[0061] The electronic scale bearing mechanism provided in this embodiment can omit the force transmission link of the scale bottom shell 100 during the weighing process and the force transmission process, thereby reducing the force transmission chain, reducing the error generated during the force transmission process, and improving the accuracy of the measurement results.

[0062] Please combine Figure 1-Figure 2 This embodiment also provides an electronic scale assembly, which includes a scale surface shell 001, an upper support frame 002, an upper support leg 300, a sensor module 003, a scale pan 004, and an electronic scale supporting mechanism. The scale surface shell 001 can be connected to the scale bottom shell 100 by screws or snaps. The upper support frame 002 and the metal support frame 200 are both connected to the sensor module 003. The upper support frame 002 is located above the sensor module 003 and is connected to one side of the sensor module 003 by bolts. The metal support frame 200 is located below the sensor module 003 and is connected to the other side of the sensor module 003 by bolts using a supporting plate 210. The upper support leg 300 is connected to the upper support frame 002 and extends out of the scale surface shell 001. The upper support leg 300 does not contact the scale surface shell 001. The scale pan 004 is mounted on the upper support leg 300. The number of the upper supporting legs 300 can be four, and the four upper supporting legs 300 cooperate to support the scale surface shell 001.

[0063] The electronic scale assembly provided in this embodiment has a force transmission path of the weighing object-scale pan 004-upper support frame 002-sensor module 003-metal support frame 200-support foot 300 during weighing, thereby eliminating the force transmission link of the scale bottom shell 100, resulting in small errors and high accuracy of weighing results.

[0064] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic scale carrying mechanism, characterized in that: include: A scale bottom shell (100), a metal support frame (200) and a support leg (300), wherein the scale bottom shell (100) is provided with an avoidance hole (101); the metal support frame (200) is fixed to the scale bottom shell (100), the support leg (300) is directly mounted on the metal support frame (200), the support leg (300) is passed through the avoidance hole (101) and protrudes from the bottom of the scale bottom shell (100), and an outer peripheral surface of the support leg (300) is spaced from a hole wall of the avoidance hole (101) to form an annular anti-contact space.

2. The electronic scale carrying mechanism according to claim 1, characterized in that: The metal support frame (200) and the support foot (300) are configured as an integrated structure.

3. The electronic scale carrying mechanism according to claim 1, characterized in that: The metal support frame (200) and the support legs (300) are fixed by riveting or welding.

4. The electronic scale carrying mechanism according to claim 1, wherein: The metal support frame (200) comprises a bearing plate (210) and two support members (220), wherein the two support members (220) are fixedly connected to the bearing plate (210) and are symmetrically arranged, and each of the support members (220) is fixed with two support legs (300) arranged at intervals.

5. The electronic scale carrying mechanism according to claim 4, characterized in that: The carrier plate (210) has a first side, a second side, a third side and a fourth side connected end to end in sequence, the first side and the third side are arranged opposite to each other, the second side and the fourth side are arranged opposite to each other, the first side and the third side are both provided with a first folded edge (230) bent in a preset direction, each first folded edge (230) defines a fixing groove (231), and the support member (220) is snapped into the corresponding fixing groove (231); one of the second side and the fourth side is provided with a second folded edge (240) bent in the preset direction, and both sides of the second folded edge (240) respectively block the notch of the fixing groove (231).

6. The electronic scale carrying mechanism according to claim 4, characterized in that: The support member (220) is configured as a metal tube or a metal plate.

7. The electronic scale carrying mechanism according to claim 4, characterized in that: A positioning through hole (222) is provided on the support member (220), the support foot (300) is passed through the positioning through hole (222), and the support foot (300) and the positioning through hole (222) are relatively fixed in the axial direction of the positioning through hole (222).

8. The electronic scale carrying mechanism according to claim 7, characterized in that: The positioning through hole (222) is configured as a strip-shaped hole.

9. The electronic scale supporting mechanism according to claim 7, characterized in that: The support foot (300) comprises a rivet nut (310), a screw rod (320) and a rubber foot body (330); the rivet nut (310) is inserted into the avoidance hole (101) and fixedly connected to the support member (220); the rivet nut (310) is inserted into the avoidance hole (101) and forms the annular anti-contact space with the hole wall of the avoidance hole (101); one end of the screw rod (320) is screwed and fixed into the threaded hole of the rivet nut (310); the other end of the screw rod (320) is inserted and fixed into the rubber foot body (330); the rubber foot body (330) protrudes from the bottom of the scale bottom shell (100).

10. An electronic scale assembly, characterized in that: The electronic scale assembly comprises: A scale surface shell (001), an upper support frame (002), an upper support leg (300), a sensor module (003), a weighing pan (004) and an electronic scale bearing mechanism according to any one of claims 1 to 9; the scale surface shell (001) is connected to the scale bottom shell (100); the upper support frame (002) and the metal support frame (200) are both connected to the sensor module (003); the upper support leg (300) is connected to the upper support frame (002) and extends out of the scale surface shell (001); and the weighing pan (004) is mounted on the upper support leg (300).

Images