Double-door cabinet vending machine with weighing goods shelf

Abstract

The utility model discloses a double-door cabinet automatic vending machine with weighing goods shelves, which comprises a cabinet body, the weighing goods shelves and a middle supporting mechanism, a cabinet body middle beam is arranged in the middle of the front side of the cabinet body, the two weighing goods shelves are symmetrically arranged relative to the cabinet body middle beam, the two weighing goods shelves are suspended in the cabinet body, and the middle supporting mechanism is arranged on the cabinet body. The middle supporting mechanism is located between the two weighing goods shelves and fixedly arranged in the cabinet body. Each weighing goods shelf comprises a goods shelf body and gravity sensor mechanisms located on the two sides of the goods shelf body, goods shelf lap joint plates are fixedly arranged on the two sides of the upper middle portion of the goods shelf body, and the goods shelf body is arranged on the gravity sensor mechanisms in a lap joint mode through the goods shelf lap joint plates on the two sides. The gravity sensor mechanisms on the two sides of each goods shelf body are fixedly connected with the inner wall of one side of the cabinet body and the side wall of one side of the middle supporting mechanism correspondingly. According to the vending machine, the installation number of the gravity sensors is small, and it is guaranteed that the two goods shelves are installed in a suspended mode through the middle supporting mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic vending machine technical field, concretely relates to a double door cabinet automatic vending machine with weighing goods shelf. BACKGROUND

[0002] The existing automatic vending machine mostly adopts static or dynamic identification scheme to identify the goods on its goods shelf, that is, a visual identification camera is installed inside the vending machine box body or above the cabinet body to collect the shape photo or video of the goods purchased by the customer for judgment, and then the actually purchased goods are determined; in order to improve the identification accuracy, a gravity sensor is installed on each layer of the shelf, and the weight of the goods on the shelf is detected by the gravity sensor for secondary judgment; the disadvantage is that the gravity sensor needs to be installed on each layer of the shelf, and the high cost of the gravity sensor leads to the increase of the cost of the whole machine, and also increases the after-sales maintenance cost. Especially for the double door cabinet automatic vending machine, two goods shelves are arranged inside, and if the gravity sensor is installed on each layer of the two goods shelves for weighing, the cost is higher. In order to solve the problem, for the single door automatic vending machine, one gravity sensor can be arranged on each side of one goods shelf in the cabinet body, and the gravity sensor is fixed firmly on the inner wall of the cabinet body, then the goods shelf is placed on the gravity sensor, and the goods shelf does not contact with the inner wall of the cabinet body, that is, the gravity sensor is used to support and weigh the goods shelf as a whole; but the double door cabinet automatic vending machine is provided with two goods shelves, and the gravity sensors on the two sides of the two goods shelves cannot be installed only by the inner walls of the two sides of the cabinet body. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a double door cabinet automatic vending machine with weighing goods shelf.

[0004] In order to realize the above purpose, the technical solution adopted by the utility model is:

[0005] A double door cabinet automatic vending machine with weighing goods shelf, comprising:

[0006] A cabinet body, a cabinet body middle beam is arranged in the middle of the front side of the cabinet body, and two cabinet doors are arranged on the two sides of the cabinet body middle beam;

[0007] Two weighing goods shelves are arranged and symmetrically arranged about the cabinet body middle beam;

[0008] A middle support mechanism is arranged between the two weighing goods shelves and fixedly arranged in the cabinet body;

[0009] Each of the weighing shelves comprises a shelf body and gravity sensor mechanisms arranged on both sides of the shelf body, and a shelf lap plate is fixedly arranged on the upper middle part of the shelf body, and the shelf body is lapped on the gravity sensor mechanisms through the shelf lap plates on both sides.

[0010] Further, the intermediate support mechanism comprises an intermediate support frame, the top of the intermediate support frame is provided with an upper fixed support plate, the upper fixed support plate is inverted U-shaped, and the two side walls of the upper fixed support plate are provided with first mounting holes for mounting the gravity sensor mechanisms.

[0011] The front end and the rear end of the upper fixed support plate are respectively provided with a top front connecting plate and a top rear connecting plate, the top front connecting plate is vertically fixed above the front end of the upper fixed support plate, the top rear connecting plate is provided with two, and the two top rear connecting plates are vertically fixed on both sides of the rear end of the upper fixed support plate; the top front connecting plate is fixedly connected with the inner wall of the middle beam of the cabinet, and the top rear connecting plate is fixedly connected with the inner wall of the back plate of the cabinet.

[0012] Further, the bottom of the intermediate support frame is provided with a lower fixed support plate, the lower fixed support plate is inverted U-shaped and the left and right sides of the opening end of the lower fixed support plate are fixedly provided with lower fixed support wings, and the intermediate support mechanism is fixedly connected with the inner bottom wall of the cabinet through the lower fixed support wings.

[0013] Further, the bottom of the intermediate support frame is provided with a lower fixed support plate, the lower fixed support plate is inverted U-shaped and the left and right sides of the opening end of the lower fixed support plate are fixedly provided with lower fixed support wings, and the intermediate support mechanism is fixedly connected with the inner bottom wall of the cabinet through the lower fixed support wings.

[0014] Further, the gravity sensor mechanism is fixedly connected with the inner wall of one side of the cabinet through a weighing shelf fixing mechanism, and the weighing shelf fixing mechanism and the heat preservation layer of the side wall of the cabinet are fixed as a whole through foaming;

[0015] The weighing shelf fixing mechanism comprises a weighing shelf fixing plate, the weighing shelf fixing plate is U-shaped and the opening end of the weighing shelf fixing plate faces away from the gravity sensor mechanism, and the vertical faces of the weighing shelf fixing plate are provided with at least one second mounting hole for mounting the gravity sensor mechanism.

[0016] Furthermore, an internally threaded sleeve communicating with the second mounting hole is fixedly provided on the side of the weighing rack fixing plate away from the gravity sensor mechanism.

[0017] Furthermore, an upper bending fixing plate and a lower bending fixing plate are vertically arranged above and below the opening end of the weighing rack fixing plate, respectively, and the free ends of the upper bending fixing plate and the lower bending fixing plate are bent at 90° toward the gravity sensor mechanism.

[0018] Furthermore, the free end bending portions of the upper bending fixing plate and the lower bending fixing plate are composed of several spaced reinforcing plates.

[0019] Furthermore, the length of the upper bending fixing plate is greater than the length of the lower bending fixing plate.

[0020] Furthermore, the horizontal surface of the weighing rack fixing plate and the upper and lower bending fixing plates are provided with a number of foam fixing holes.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model provides a double-door vending machine with a weighing shelf. The vending machine has two shelves, each equipped with only two gravity sensors. The shelves do not contact the inner wall of the cabinet; they rest on the gravity sensor mechanism via overlapping plates on both sides. This utilizes the gravity sensors to simultaneously support the shelves and weigh the entire machine, eliminating the need for gravity sensors at the bottom of each shelf, thus reducing the number of sensors required. Furthermore, this utility model also includes an intermediate support mechanism within the cabinet, located between the two shelves, with gravity sensors on both sides of each shelf... The two shelves are fixedly connected to the inner wall of one side of the cabinet and the side wall of the middle support mechanism, respectively, to ensure the suspended installation of the two shelves. Moreover, the middle support mechanism divides the cabinet space into two independent spaces so that the two shelves do not interfere with each other. In addition, this utility model also provides a weighing shelf fixing mechanism, which is integrally formed with the insulation layer foam of the cabinet side wall. The weighing shelf fixing mechanism is in the shape of an "arch" and is equipped with reinforcing plates to ensure that the weighing shelf fixing mechanism is firmly connected to the insulation layer foam material of the cabinet side wall, thus ensuring that the gravity sensor is firmly fixed to the inner wall of the cabinet. Attached Figure Description

[0023] To clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1It is the whole structure schematic view of embodiment 1 of the utility model;

[0025] Figure 2 It is the cabinet structure schematic view of embodiment 1 of the utility model;

[0026] Figure 3 It is the connection relation schematic view of shelf body and gravity sensor mechanism in embodiment 1 of the utility model;

[0027] Figure 4 It is Figure 3 The structure enlarged view of A place in middle;

[0028] Figure 5 It is the structure schematic view of gravity sensor mechanism of embodiment 1 of the utility model;

[0029] Figure 6 It is the structure schematic view of intermediate support mechanism of embodiment 1 of the utility model;

[0030] Figure 7 It is the side view of weighing shelf fixing mechanism of embodiment 1 of the utility model;

[0031] Figure 8 It is the three-dimensional structure schematic view of weighing shelf fixing mechanism of embodiment 1 of the utility model;

[0032] Figure 9 It is the structure schematic view of intermediate support mechanism of embodiment 2 of the utility model;

[0033] Figure 10 It is the use state schematic view of intermediate support mechanism of embodiment 2 of the utility model.

[0034] Mark in figure: 1, cabinet;101, cabinet intermediate beam;2, weighing shelf;3, intermediate support mechanism;301, intermediate support frame;302, upper fixed support plate;303, first mounting hole;304, top front connecting plate;305, top rear connecting plate;306, lower fixed support plate;307, lower fixed support wing plate;308, bottom front connecting plate;309, bottom rear connecting plate;4, shelf body;401, shelf lap plate;5, gravity sensor mechanism;501, gravity sensor;502, gravity sensor fixed seat;503, gravity sensor protection shell;6, weighing shelf fixing mechanism;601, weighing shelf fixing plate;602, second mounting hole;603, internal thread sleeve;604, upper bending fixed plate;605, lower bending fixed plate;606, reinforcing plate;607, foaming fixed hole. DETAILED DESCRIPTION

[0035] The utility model provides a double door cabinet automatic vending machine with weighing goods shelves, in order to make the utility model's purpose, technical scheme and effect more clear, explicit, the following to the utility model further detailed explanation, it should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0036] In the description of the utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", "front", "rear" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0037] The utility model will be described in detail below in combination with the drawings.

[0038] Embodiment 1

[0039] With reference to Figure 1 And Figure 2 The embodiment provides a double door cabinet automatic vending machine with weighing goods shelves, comprising:

[0040] The cabinet body 1 is provided with a cabinet middle beam 101 in the middle of the front side, two cabinet doors are arranged on the two sides of the cabinet middle beam 101, and the cabinet middle beam 101 divides the cabinet door frame into two cabinet door frames matched with the cabinet doors;

[0041] The weighing goods shelves 2 are arranged symmetrically about the cabinet middle beam 101.

[0042] The middle support mechanism 3 is located between the two weighing goods shelves 2 and is fixedly arranged in the middle region of the cabinet body 1.

[0043] Specifically, with reference to Figures 3-5 Each weighing goods shelf 2 comprises a goods shelf body 4 and a gravity sensor mechanism 5 located on the two sides of the goods shelf body 4, and the middle upper part of the goods shelf body 4 is fixedly provided with a goods shelf lap plate 401 on the two sides, and each goods shelf body 4 is clamped on the gravity sensor mechanism 5 through the goods shelf lap plate 401 on the two sides; the gravity sensor mechanism 5 on the two sides of each goods shelf body 4 is fixedly connected with the inner wall of one side of the cabinet body 1 and the side wall of one side of the middle support mechanism 3 respectively, and the gravity sensor mechanism 5 is fixedly connected with the inner wall of one side of the cabinet body 1 through the weighing goods shelf fixing mechanism 6.

[0044] The front side of the above-mentioned goods shelf body 4 is open, and the top wall, bottom wall, left and right side walls and rear wall are all closed through the iron wire mesh to prevent the goods on the goods shelf body 4 from contacting other objects around and affecting the weighing.

[0045] The gravity sensor mechanism 5 comprises a gravity sensor 501, a gravity sensor fixing seat 502, and a gravity sensor protection shell 503. The gravity sensor fixing seat 502 is L-shaped and comprises a bottom plate and a side plate. The gravity sensor 501 is fixed to the bottom plate of the gravity sensor fixing seat 502. The side plate of the gravity sensor fixing seat 502 is fixedly connected to one side of the inner wall of the cabinet body 1 or one side of the side wall of the middle support mechanism 3 by bolts. The gravity sensor protection shell 503 is connected to the shelf body 4 by bolts, and the gravity sensor protection shell 503 does not contact the gravity sensor 501 or the gravity sensor fixing seat 502. In addition, in order to better protect the gravity sensor 501, the gravity sensor protection shell 503 forms a protective cover around the gravity sensor 501 through the side plate, the front and rear side plates, and the bottom plate.

[0046] In order to facilitate the gravity sensor 501 to weigh the shelf body 4, the shelf body 4 is placed on the gravity sensor 501 through the shelf lap plates 401 on both sides, and a gasket is arranged between the shelf lap plates 401 and the gravity sensor 501.

[0047] Specifically, referring to Figure 6 The middle support mechanism 3 comprises a middle support frame 301 which is H-shaped and welded by square tubes. The top of the middle support frame 301 is provided with an upper fixed support plate 302 which is inverted U-shaped. The two side walls of the upper fixed support plate 302 are provided with first mounting holes 303 for mounting the gravity sensor mechanism 5. The gravity sensor mechanism 5 near one side of the middle support mechanism 3 is fixedly connected to the upper fixed support plate 302 by bolts.

[0048] In order to facilitate the fixation of the middle support mechanism 3 and the cabinet body 1, the front end and the rear end of the upper fixed support plate 302 are respectively provided with a top front connecting plate 304 and a top rear connecting plate 305. The top front connecting plate 304 is fixedly arranged above the front end of the upper fixed support plate 302. Two top rear connecting plates 305 are fixedly arranged on both sides of the rear end of the upper fixed support plate 302. The top front connecting plate 304 is fixedly connected to the inner wall of the middle beam 101 of the cabinet body. The top rear connecting plates 305 are fixedly connected to the inner wall of the back plate of the cabinet body by bolts, thereby fixing the top of the middle support mechanism 3. In addition, the bottom of the middle support frame 301 is provided with a lower fixed support plate 306 which is inverted U-shaped and has lower fixed support wings 307 fixedly arranged on both sides of the opening end. The lower fixed support wings 307 are fixedly connected to the inner bottom wall of the cabinet body by bolts, thereby fixing the bottom of the middle support mechanism 3.

[0049] Specifically, referring toFigure 7 and Figure 8 The weighing shelf fixing mechanism 6 comprises a weighing shelf fixing plate 601, which is U-shaped and has its open end facing away from the gravity sensor mechanism 5. Two second mounting holes 602 for mounting the gravity sensor mechanism 5 are arranged at the two ends of the vertical surface of the weighing shelf fixing plate 601, and an internally threaded sleeve 603 is fixedly arranged on the side of the weighing shelf fixing plate 601 away from the gravity sensor mechanism 5 and communicates with the second mounting hole 602. During installation, the gravity sensor mechanism 5 close to the side of the inner side wall of the cabinet 1 is fixedly connected to the weighing shelf fixing plate 601 by bolts.

[0050] To further ensure the firmness of the weighing shelf fixing, the weighing shelf fixing mechanism 6 and the thermal insulation layer of the side wall of the cabinet 1 are integrally formed by foaming. An upper bent fixing plate 604 and a lower bent fixing plate 605 are vertically arranged above and below the open end of the weighing shelf fixing plate 601, respectively. The length of the upper bent fixing plate 604 is greater than that of the lower bent fixing plate 605. The free ends of the upper bent fixing plate 604 and the lower bent fixing plate 605 are bent by 90° toward the side of the gravity sensor mechanism 5, and the bent portions of the free ends of the upper bent fixing plate 604 and the lower bent fixing plate 605 are composed of a plurality of reinforcing plates 606 arranged at intervals. In addition, a plurality of foaming fixing holes 607 are arranged on the horizontal surface of the weighing shelf fixing plate 601 and the upper bent fixing plate 604 and the lower bent fixing plate 605.

[0051] During the foaming process of fixing the weighing shelf fixing mechanism to the thermal insulation layer of the two side walls of the vending machine cabinet, the foaming material can fill the U-shaped cavity of the weighing shelf fixing plate to make the weighing shelf fixing mechanism firm. Meanwhile, the upper bent fixing plate and the lower bent fixing plate form U-shaped cavities with the two horizontal surfaces of the weighing shelf fixing plate, respectively, and the foaming material fills the U-shaped cavities above and below the weighing shelf fixing plate, further making the weighing shelf fixing mechanism firm. In addition, the reinforcing plates arranged at intervals in the bent portions of the free ends of the upper bent fixing plate and the lower bent fixing plate are embedded in the foaming material, further making the weighing shelf fixing mechanism firm. In addition, the foaming fixing holes not only facilitate the entry of the foaming material but also further embed the weighing shelf fixing mechanism in the foaming material to make it firm.

[0052] In addition, during the foaming process of fixing the weighing shelf fixing mechanism to the thermal insulation layer of the two side walls of the vending machine cabinet, holes corresponding to the mounting holes of the weighing shelf fixing mechanism are pre-formed on the inner side wall shells of the two sides of the vending machine cabinet, and the internally threaded sleeves are pre-plugged by using plugging threaded rods to prevent the foaming material from plugging the threaded holes of the internally threaded sleeves. One end of the plugging threaded rod protrudes out of the inner side wall shell of the vending machine cabinet, facilitating the disassembly of the plugging threaded rod.

[0053] The installation process of the weighing shelf for the vending machine provided in the embodiment is as follows:

[0054] First, the intermediate support mechanism is installed, then the shelf body is placed into the vending machine cabinet body, and the base plate is placed at the bottom of the shelf body so that the positions of the shelf lap plates on both sides are higher than the installation positions of the gravity sensor mechanisms, then four gravity sensor mechanisms are installed, each shelf body corresponds to two gravity sensor mechanisms, specifically, the gravity sensor is installed on the gravity sensor fixing seat, then the gravity sensor fixing seat is fixedly connected with the weighing shelf fixing plate of the weighing shelf fixing mechanism or the upper fixing support plate of the intermediate support mechanism through bolts respectively, after the four gravity sensor mechanisms are installed, the base plate at the bottom of the shelf body is removed, and the two shelf bodies are placed on the gravity sensors through the shelf lap plates on both sides, then the gravity sensor protection shell is installed on the shelf body to protect the gravity sensor.

[0055] Embodiment 2

[0056] With reference to Figure 9 and Figure 10 , the difference between the embodiment 2 and the embodiment 1 is that, in the embodiment, the lower fixing support plate 306 at the bottom of the intermediate support frame 301 is in a U shape, and the front end and the rear end of the lower fixing support plate 306 are respectively provided with a bottom front connecting plate 308 and a bottom rear connecting plate 309; wherein the bottom front connecting plate 308 is fixedly arranged vertically below the front end of the lower fixing support plate 306, and the bottom rear connecting plate 309 is arranged in two, and the two bottom rear connecting plates 309 are fixedly arranged vertically on both sides of the rear end of the lower fixing support plate; the above-mentioned bottom front connecting plate 308 is fixedly connected with the inner wall of the cabinet middle beam 101 through bolts, and the above-mentioned bottom rear connecting plate 309 is fixedly connected with the inner wall of the cabinet back plate through bolts, so as to realize the bottom fixation of the intermediate support mechanism 3.

[0057] In the embodiment, the bottom of the intermediate support mechanism 3 is suspended and does not contact the inner bottom wall of the cabinet 1, so as to avoid the structural inclination caused by the uneven bottom of the cabinet.

[0058] It should be noted that the gravity sensor in the utility model can be obtained from the market.

[0059] It should be noted that the parts not mentioned in the utility model can be realized by using or referring to the existing technology.

[0060] Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples, and the changes, modifications, additions or replacements made by the technical personnel in the technical field within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A dual door cabinet vending machine having a weigh shelf, characterized by, Include: The cabinet body, the front side of the cabinet body is provided with a cabinet body middle beam, the two sides of the cabinet body middle beam are provided with two cabinet doors; The weighing shelf is provided with two and two weighing shelves are symmetrically arranged about the cabinet body middle beam; The middle support mechanism is located between the two weighing shelves and is fixedly arranged in the cabinet body; Each weighing shelf includes a shelf body and a gravity sensor mechanism on both sides of the shelf body, the upper middle part of the shelf body is fixedly provided with a shelf lap plate on both sides, and the shelf body is clamped on the gravity sensor mechanism through the shelf lap plates on both sides; the gravity sensor mechanism on both sides of each shelf body is respectively fixedly connected with the inner wall of one side of the cabinet body and the side wall of the middle support mechanism.

2. The dual door cabinet vending machine with a load shelf according to claim 1, characterized in that, The middle support mechanism includes a middle support frame, the top of the middle support frame is provided with an upper fixed support plate, the upper fixed support plate is inverted U-shaped, and the two side walls of the upper fixed support plate are provided with first mounting holes for mounting the gravity sensor mechanism; The front end and the rear end of the upper fixed support plate are respectively provided with a top front connecting plate and a top rear connecting plate, the top front connecting plate is vertically fixed above the front end of the upper fixed support plate, the top rear connecting plate is provided with two, and the two top rear connecting plates are vertically fixed on both sides of the rear end of the upper fixed support plate; the top front connecting plate is fixedly connected with the inner wall of the cabinet body middle beam, and the top rear connecting plate is fixedly connected with the inner wall of the cabinet back plate.

3. A dual door cabinet vending machine having a weighed shelf according to claim 2, characterized in that, The bottom of the middle support frame is provided with a lower fixed support plate, the lower fixed support plate is inverted U-shaped and its opening end is fixedly provided with a lower fixed support wing plate on both sides, and the middle support mechanism is fixedly connected with the inner bottom wall of the cabinet body through the lower fixed support wing plate.

4. The dual door cabinet vending machine having a shelf scale according to claim 2, wherein, The bottom of the middle support frame is provided with a lower fixed support plate, the lower fixed support plate is U-shaped; the front end and the rear end of the lower fixed support plate are respectively provided with a bottom front connecting plate and a bottom rear connecting plate, the bottom front connecting plate is vertically fixed below the front end of the lower fixed support plate, the bottom rear connecting plate is provided with two, and the two bottom rear connecting plates are vertically fixed on both sides of the rear end of the lower fixed support plate; the bottom front connecting plate is fixedly connected with the inner wall of the cabinet body middle beam, and the bottom rear connecting plate is fixedly connected with the inner wall of the cabinet back plate.

5. A dual door cabinet vending machine with a load shelf according to any one of claims 1 to 4, characterized in that, The gravity sensor mechanism is fixedly connected with the inner wall of one side of the cabinet body through the weighing shelf fixing mechanism, and the weighing shelf fixing mechanism and the heat preservation layer of the side wall of the cabinet are fixed as a whole through foaming; The weighing shelf fixing mechanism includes a weighing shelf fixing plate, the weighing shelf fixing plate is U-shaped and its opening end faces away from the gravity sensor mechanism, and the vertical faces of the weighing shelf fixing plate are provided with at least one second mounting hole for mounting the gravity sensor mechanism.

6. A dual door cabinet vending machine having a weighed shelf according to claim 5, characterized in that, The side of the weighing shelf fixing plate away from the gravity sensor mechanism is fixedly provided with an internally threaded sleeve in communication with the second mounting hole.

7. A dual door cabinet vending machine having a load shelf according to claim 5, wherein, The opening end of the weighing shelf fixing plate is vertically provided with an upper bending fixing plate and a lower bending fixing plate above and below respectively, and the free ends of the upper bending fixing plate and the lower bending fixing plate are bent by 90° toward the side of the gravity sensor mechanism.

8. A dual door cabinet vending machine having a weighed shelf according to claim 7, characterized in that, The free end bending part of the upper and lower bending fixed plates is composed of several reinforcing plates arranged at intervals.

9. The dual door cabinet vending machine having a load shelf according to claim 7, wherein, The length of the upper bending fixed plate is greater than that of the lower bending fixed plate.

10. The dual door cabinet vending machine having a load shelf according to claim 7, wherein, Several foaming fixed holes are arranged on the horizontal plane of the fixed plate of the weighing shelf, and on the upper and lower bending fixed plates.

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