A kilogram weight verification protection device

Abstract

This utility model discloses a kilogram weight verification and protection device, belonging to the field of weight verification and protection technology. It includes a protective frame and electrically operated sliding doors. The protective frame has a C-shaped structure and is mounted on a base. Two sets of electrically operated sliding doors are slidably arranged inside the protective frame, and the two sets of doors are staggered. When the two sets of doors slide to the leftmost and rightmost positions of the protective frame respectively, the protective frame and the two sets of doors form a closed structure covering the base. Photoelectric switches are respectively provided on the left and right sides of the protective frame to detect the position of the electrically operated doors. This utility model has a high degree of automation, requires little space, and facilitates the handling of weights.

Description

Technical Field

[0001] This utility model relates to a protective device, and more particularly to a kilogram weight verification protective device, belonging to the field of weight verification protection technology. Background Technology

[0002] Weights are tools used to measure the weight of objects, and their accuracy is a crucial aspect of quality control. Over time, the weight of weights may change, affecting their accuracy. Regular calibration of weights ensures their mass and weight accuracy, thereby guaranteeing reliability in various measurement and inspection processes. Therefore, weight calibration is necessary to guarantee their precise mass. Weight mass calibration involves comparing the weight to be tested with a standard weight on a mass comparator to determine the mass error of the weight under test.

[0003] When testing weights, they need to be placed in a relatively enclosed space and placed on a mass comparator for testing to avoid the influence of external wind on the inaccurate experimental data. Traditionally, a simple glass box is used, with transparent glass plates on all four sides to observe the internal situation. However, when placing weights into the box, they are usually placed from the top down. The height of the box is generally around 600mm. During placement, the glass plates on the box are easily touched and broken, which increases maintenance costs.

[0004] Chinese utility model patent application number CN202022519348.5 discloses an electric windproof cover, relating to the field of weight and scale performance testing technology. It includes a housing frame, a cover body, a telescopic mechanism, and a connecting mechanism. The cover body is slidably connected to the housing frame, forming a closed space when closed. The telescopic mechanism is mounted on the housing frame, and the connecting mechanism is connected to the end of the telescopic mechanism and to the cover body. This utility model has advantages such as high automation, allowing weights to be placed from the front or top with minimal risk of breaking the glass plate, and reduced maintenance costs. However, when opening the cover, it needs to slide beyond the housing frame, especially when fully open, where the cover almost completely slides out of the frame. This requires a large rectangular space for the cover to slide, limiting its usability. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a kilogram weight verification and protection device.

[0006] The technical solution adopted in this utility model is as follows: a protective device for kilogram weight verification is designed, which is placed over a kilogram weight verification device. The kilogram weight verification device includes a base and a verification mechanism disposed on the base. The protective device includes a protective frame and electric sliding doors. The protective frame has a C-shaped structure, allowing weights to be placed from the front or top. The protective frame is installed on the base, and two sets of electric sliding doors are slidably disposed within the protective frame, with the two sets of electric sliding doors staggered. When the two sets of electric sliding doors are slid to the leftmost and rightmost positions of the protective frame, the protective frame and the two sets of electric sliding doors form a closed structure covering the base to protect the weight verification process. Photoelectric switches are respectively provided on the left and right sides of the protective frame to detect the position of the electric sliding doors, enabling intelligent control of the electric sliding doors through the photoelectric switches.

[0007] Furthermore, the electric sliding door includes a door body, which is configured with an L-shaped structure to enable the opening and closing of the upper and front openings of the protective frame. Both ends of the door body are slidably connected to the protective frame, ensuring reliable connection.

[0008] Furthermore, both the protective frame and the door are assembled from aluminum profile columns and transparent panels, which facilitates material sourcing and assembly. On the one hand, the aluminum profile columns are generally provided with T-slots, which facilitates the assembly and connection of other components with them. On the other hand, it is convenient for them to be assembled with the transparent panels.

[0009] Furthermore, the electric sliding door also includes a sliding assembly. Sliding assemblies are respectively provided at both ends of the door body, and guide rails are respectively provided at the positions corresponding to both ends of the door body on the protective frame. The sliding assembly is slidably connected to the guide rails, and the connection is stable.

[0010] Furthermore, the sliding assembly includes a support bar and sliders disposed at both ends of the support bar. The sliders are slidably connected to the guide rail. This type of sliding assembly can provide comprehensive support and protection for the ends of the door.

[0011] Furthermore, a sealing plate is provided on the outside of the sliding assembly. The sealing plate is connected to the sliding assembly and abuts against the outside of the guide rail. By setting the sealing plate, the smoothness of the electric sliding door is improved on the one hand, and a certain sealing effect is provided on the other hand, reducing the wind from entering from the end.

[0012] Furthermore, the electric sliding door also includes a drive mechanism. One set of the electric sliding door drive mechanism is located on the upper rear side of the protective frame, and the other set of the electric sliding door drive mechanism is located on the lower front side of the protective frame. The drive mechanism drives the door to slide. The two sets of electric sliding door drive mechanisms are set separately to reduce mutual interference, disperse the layout, and make assembly and maintenance simpler.

[0013] Furthermore, the drive mechanism includes a drive motor, a reducer, a mounting plate, a drive gear, and a drive rack. The mounting plate is installed in the middle of the protective frame, and the reducer is installed on one side of the mounting plate. The drive motor is located at the input end of the reducer, and the drive gear is located at the output end. The drive gear and the drive rack mesh, and the drive rack is connected to the door body. The sliding of the electric sliding door is achieved through the meshing transmission of the gear and rack, resulting in a stable structural transmission.

[0014] Furthermore, the two sets of electric sliding doors are designated as a first electric sliding door and a second electric sliding door. The guide rails include a first upper guide rail, a first lower guide rail, a second upper guide rail, and a second lower guide rail. The first and second upper guide rails are arranged vertically parallel to each other on the rear side of the upper end of the protective frame. The first and second lower guide rails are arranged front-to-back parallel to each other on the front side of the lower end of the protective frame. The two ends of the first electric sliding door are slidably connected to the first upper guide rail and the first lower guide rail, respectively. The two ends of the second electric sliding door are slidably connected to the second upper guide rail and the second lower guide rail, respectively. The structure is simple and reliable.

[0015] Furthermore, the photoelectric switch includes a first left photoelectric switch, a first right photoelectric switch, a second left photoelectric switch, and a second right photoelectric switch. A base plate is provided at the bottom of the protective frame. The first left photoelectric switch and the first right photoelectric switch are respectively disposed on the protective frame at the left and right ends of the first lower guide rail, and the second left photoelectric switch and the second right photoelectric switch are respectively disposed on the base plate at the left and right ends of the second lower guide rail.

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

[0017] This utility model, through the design of a C-shaped protective frame, allows weights to be placed or removed from the front or top, making it convenient to use. The photoelectric switch automatically detects the position of the electric sliding door, controlling its sliding and achieving intelligent automatic opening and closing. By incorporating two sets of sliding electric sliding doors within the C-shaped protective frame, the doors will not slide out of the frame's range during opening and closing, eliminating the need for additional space for the doors and reducing usability limitations. Attached Figure Description

[0018] To more 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the isometric view of this utility model.

[0020] Figure 2for Figure 1 Another perspective illustration.

[0021] Figure 3 This is a schematic diagram of the protective frame of this utility model.

[0022] Figure 4 This is a schematic diagram of the assembly of two sets of electric sliding doors and guide rails according to this utility model.

[0023] Figure 5 This is a schematic diagram of the assembly of two sets of electric sliding doors according to this utility model.

[0024] Figure 6 This is a schematic diagram of the assembly of the door body and sliding component of this utility model.

[0025] Figure 7 This is a schematic diagram of the assembly of the protective frame and the kilogram weight calibration device of this utility model.

[0026] Figure 8 This is a schematic diagram of the assembly of the present invention with a kilogram weight calibration device.

[0027] In the diagram: 1. Base; 2. Inspection mechanism; 3. Protective frame; 4. Door body; 5. Aluminum profile column; 6. Transparent plate; 7. Sliding assembly; 8. Support bar; 9. Slider; 10. Sealing plate; 11. Drive mechanism; 12. Drive motor; 13. Reducer; 14. Mounting plate; 15. Drive gear; 16. Drive rack; 17. First electric sliding door; 18. Second electric sliding door; 19. First upper guide rail; 20. First lower guide rail; 21. Second upper guide rail; 22. Second lower guide rail; 23. First left photoelectric switch; 24. First right photoelectric switch; 25. Second left photoelectric switch; 26. Second right photoelectric switch; 27. Base plate; 28. Dynamic detection block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1

[0031] like Figure 1-3 and Figure 7-8 As shown, a protective device for kilogram weight verification is provided, which is mounted on a kilogram weight verification device. The kilogram weight verification device includes a base 1 and a verification mechanism 2 mounted on the base 1. The verification mechanism 2 includes a mass comparator and a supporting mechanism. The mass comparator is located in the middle of the base 1, and the supporting mechanism is slidably mounted above the mass comparator. The supporting mechanism includes a support frame and a test weight fork and a standard weight fork located on the left and right sides of the support frame and capable of vertical movement. During verification, the test weight and the standard weight are placed on the test weight fork and the standard weight fork, respectively, and then loaded onto the mass comparator for weighing and comparison. Therefore, after the kilogram weight verification protective device is installed on the kilogram weight verification device, it is necessary to be able to place or remove weights from the left and right sides respectively. Based on the above, the kilogram weight verification protection device described in this embodiment is proposed, which includes a protective frame 3 and electric sliding doors. The protective frame 3 has a C-shaped structure and is installed on the base 1. Two sets of electric sliding doors are slidably arranged inside the protective frame 3, and the two sets of electric sliding doors are staggered, one inside and one outside. Both sets of electric sliding doors can slide left and right to the leftmost and rightmost sides of the C-shaped opening of the protective frame 3. When the two sets of electric sliding doors are controlled to slide to the leftmost and rightmost sides of the protective frame 3 respectively, the protective frame 3 and the two sets of electric sliding doors form a closed structure covering the base 1. Typically, the width of each set of electric sliding doors is not less than half the width of the C-shaped opening of the protective frame 3. Photoelectric switches are respectively provided on the left and right sides of the protective frame 3 to detect the position of the electric sliding doors. It should be noted that a controller is usually also configured, and the control motor of the electric sliding door and the photoelectric switch are respectively connected to the controller. The controller detects and judges the position or status of each group of electric sliding doors through the photoelectric switch, and then controls the control motor of the electric sliding door to drive it to slide, so that the two groups of electric sliding doors slide together to the left-open, right-open or fully closed protective frame 3C-type opening state. The above controller or control process can be realized using existing technology.

[0032] Example 2

[0033] This embodiment further optimizes the electric sliding door structure based on Embodiment 1. For example... Figure 4-6As shown, in this embodiment, the electric sliding door includes a door body 4, which is configured as an L-shaped structure, with both ends slidably connected to the protective frame 3. Both the protective frame 3 and the door body 4 are assembled from aluminum profile columns 5 and transparent panels 6. The transparent panel 6 can be a glass panel or a plastic panel. The aluminum profile columns 5 are generally rectangular columns, and each surface of the column is generally provided with a T-shaped groove.

[0034] In this embodiment, the electric sliding door further includes a sliding assembly 7. Sliding assemblies 7 are respectively provided at both ends of the door body 4, and guide rails are respectively provided at the positions corresponding to both ends of the protective frame 3. The sliding assembly 7 is slidably connected to the guide rails. The guide rails can be T-shaped or C-shaped, with limiting protrusions provided on both sides of the C-shaped groove. For example, the sliding assembly 7 includes a support bar 8 and sliders 9 provided at both ends of the support bar 8, with the sliders 9 slidably connected to the guide rails. Alternatively, only one slider 9 may be provided at each end of the door body 4. More specifically, a sealing plate 10 is also provided on the outside of the sliding assembly 7, and the sealing plate 10 is connected to the sliding assembly 7 and abuts against the outside of the guide rails.

[0035] In this embodiment, the electric sliding door further includes a drive mechanism 11. One set of drive mechanisms 11 for the electric sliding door is located on the upper rear side of the protective frame 3, and the other set of drive mechanisms 11 for the electric sliding door is located on the lower front side of the protective frame 3. The drive mechanism 11 drives the door body 4 to slide. For example, the drive mechanism 11 includes a drive motor 12, a reducer 13, a mounting plate 14, a drive gear 15, and a drive rack 16. The mounting plate 14 is installed in the middle of the protective frame 3. The reducer 13 is installed on one side of the mounting plate 14. The input end of the reducer 13 is provided with the drive motor 12 (generally a forward and reverse motor), and the output end is provided with the drive gear 15. The drive gear 15 and the drive rack 16 mesh. The drive rack 16 is connected to the door body 4, for example, the drive rack 16 can be installed on the sealing plate 10 or on the frame of the door body 4.

[0036] Example 3

[0037] This embodiment further optimizes the electric sliding door structure based on Embodiment 2. In this embodiment, the two sets of electric sliding doors are a first electric sliding door 17 and a second electric sliding door 18. The guide rails include a first upper guide rail 19, a first lower guide rail 20, a second upper guide rail 21, and a second lower guide rail 22. The first upper guide rail 19 and the second upper guide rail 21 are arranged parallel vertically on the rear side of the upper end of the protective frame 3, and the first lower guide rail 20 and the second lower guide rail 22 are arranged parallel front-to-back on the front side of the lower end of the protective frame 3. The two ends of the first electric sliding door 17 are slidably connected to the first upper guide rail 19 and the first lower guide rail 20, respectively, and the two ends of the second electric sliding door 18 are slidably connected to the second upper guide rail 21 and the second lower guide rail 22, respectively.

[0038] In this embodiment, the photoelectric switches include a first left photoelectric switch 23, a first right photoelectric switch 24, a second left photoelectric switch 25, and a second right photoelectric switch 26. A base plate 27 is provided at the bottom of the protective frame 3. The first left photoelectric switch 23 and the first right photoelectric switch 24 are respectively disposed on the protective frame 3 at the left and right ends of the first lower guide rail 20, and are used to detect whether the first electric sliding door 17 has slid to the leftmost or rightmost position. The second left photoelectric switch 25 and the second right photoelectric switch 26 are respectively disposed on the base plate 27 at the left and right ends of the second lower guide rail 22, and are used to detect whether the second electric sliding door 18 has slid to the leftmost or rightmost position. Specifically, in the accompanying drawings, since the first left photoelectric switch 23 and the first right photoelectric switch 24 are respectively disposed on the protective frame 3, motion detection blocks 28 are also added to the left and right sides of the lower end of the first electric sliding door 17. When the first electric sliding door 17 slides to the leftmost or rightmost position, the motion detection blocks 28 on it reach above the first left photoelectric switch 23 and the first right photoelectric switch 24 to be detected.

[0039] When using this application, control the two sets of electric sliding doors to slide to the left or right side of the protective frame 3 in sequence. Then, place the weight to be tested and the standard weight on the verification mechanism 2. Then, control the two sets of electric sliding doors to the leftmost and rightmost sides of the protective frame 3 respectively to close the opening of the protective frame 3 and form a sealed testing space. Then, start the weight verification and comparison. After the verification is completed, remove the weight and perform the next set of weight mass comparison and testing. Repeat this process.

[0040] Furthermore, in the description of this utility model, unless otherwise stated, the terms "multiple," "multiple roots," and "multiple groups" mean two or more, and the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A protective device for kilogram weight verification, covering a kilogram weight verification device, the kilogram weight verification device comprising a base (1) and a verification mechanism (2) disposed on the base (1), characterized in that: Includes a protective frame (3) and an electric sliding door. The protective frame (3) is a C-shaped structure and is installed on the base (1). Two sets of electric sliding doors are slidably arranged inside the protective frame (3) and are staggered. When the two sets of electric sliding doors are slid to the leftmost and rightmost sides of the protective frame (3) respectively, the protective frame (3) and the two sets of electric sliding doors form a closed structure covering the base (1). Photoelectric switches are provided on the left and right sides of the protective frame (3) to detect the position of the electric sliding door.

2. The kilogram weight calibration protection device according to claim 1, characterized in that: The electric sliding door includes a door body (4), which is configured as an L-shaped structure, with its two ends slidably connected to the protective frame (3).

3. The kilogram weight calibration protection device according to claim 2, characterized in that: The protective frame (3) and the door (4) are both assembled from aluminum profile columns (5) and transparent panels (6).

4. The kilogram weight calibration protection device according to claim 2, characterized in that: The electric sliding door also includes a sliding component (7). The sliding components (7) are respectively provided at both ends of the door body (4). The protective frame (3) is provided with guide rails at the positions corresponding to both ends of the door body (4). The sliding component (7) is slidably connected to the guide rails.

5. The kilogram weight calibration protection device according to claim 4, characterized in that: The sliding component (7) includes a support bar (8) and sliders (9) disposed at both ends of the support bar (8), and the sliders (9) are slidably connected to the guide rail.

6. The kilogram weight calibration protection device according to claim 5, characterized in that: A sealing plate (10) is also provided on the outside of the sliding component (7), and the sealing plate (10) is connected to the sliding component (7) and abuts against the outside of the guide rail.

7. The kilogram weight calibration protection device according to claim 4, characterized in that: The electric sliding door also includes a drive mechanism (11), wherein one set of the electric sliding door drive mechanism (11) is located on the upper rear side of the protective frame (3), and another set of the electric sliding door drive mechanism (11) is located on the lower front side of the protective frame (3). The drive mechanism (11) drives the door body (4) to slide.

8. The kilogram weight verification and protection device according to claim 7, characterized in that: The drive mechanism (11) includes a drive motor (12), a reducer (13), a mounting plate (14), a drive gear (15), and a drive rack (16). The mounting plate (14) is installed in the middle of the protective frame (3). The reducer (13) is installed on one side of the mounting plate (14). The drive motor (12) is installed at the input end of the reducer (13), and the drive gear (15) is installed at the output end. The drive gear (15) and the drive rack (16) mesh. The drive rack (16) is connected to the door body (4).

9. The kilogram weight calibration protection device according to claim 4, characterized in that: The two sets of electric sliding doors are the first electric sliding door (17) and the second electric sliding door (18). The guide rails include the first upper guide rail (19), the first lower guide rail (20), the second upper guide rail (21), and the second lower guide rail (22). The first upper guide rail (19) and the second upper guide rail (21) are arranged parallel to each other on the upper rear side of the protective frame (3). The first lower guide rail (20) and the second lower guide rail (22) are arranged parallel to each other on the lower front side of the protective frame (3). The two ends of the first electric sliding door (17) are slidably connected to the first upper guide rail (19) and the first lower guide rail (20) respectively. The two ends of the second electric sliding door (18) are slidably connected to the second upper guide rail (21) and the second lower guide rail (22) respectively.

10. The kilogram weight verification and protection device according to claim 9, characterized in that: The photoelectric switch includes a first left photoelectric switch (23), a first right photoelectric switch (24), a second left photoelectric switch (25), and a second right photoelectric switch (26). The bottom of the protective frame (3) is provided with a base plate (27). The first left photoelectric switch (23) and the first right photoelectric switch (24) are respectively located on the protective frame (3) at the left and right ends of the first lower guide rail (20). The second left photoelectric switch (25) and the second right photoelectric switch (26) are respectively located on the base plate (27) at the left and right ends of the second lower guide rail (22).

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