Metering and weighing device

Abstract

The utility model relates to a metering and weighing device, and relates to the field of metering equipment, the metering and weighing device comprises a bottom plate, a weighing chassis, a fixed column and two leveling assemblies, the weighing chassis and the bottom plate are sequentially distributed in a first direction, and the weighing chassis is perpendicular to the first direction; the fixed column is connected to the bottom plate, and the weighing chassis is spherically hinged to the fixed column; the leveling assembly comprises a support, a first screw and a guide part, the support is rotationally connected to the bottom plate around a first axis, and the first axis is parallel to the first direction; the central axis of the first screw rod coincides with the first axis; the first screw rod penetrates through the bottom plate and the support and is in threaded connection with the support; the weighing chassis is in lap joint with the first leveling screw rod; the guide piece is connected between the first screw rod and the bottom plate and used for guiding the first screw rod to move in the first direction; on the plane perpendicular to the first direction, the fixing column and the two first leveling screws are located at the three corners of a triangle respectively. The method and the device have the effect of reducing metering deviation.

Description

Technical Field

[0001] This application relates to the field of measuring equipment, and in particular to a measuring and weighing device. Background Technology

[0002] Weighing devices are widely used in logistics, warehousing, and other fields to accurately measure the weight of goods. With the continuous expansion of commercial activities, efficient and accurate weighing equipment has become a key factor in improving work efficiency.

[0003] Handcart-type electronic scales have the advantage of being easy to move and have a more flexible operating position. For manual handcart-type electronic scales, a simple frame structure is usually used with a flat platform design, and several rolling wheels installed at the bottom are used to achieve the overall displacement function.

[0004] However, the aforementioned technologies have a problem: in practical applications, it is difficult to quickly and accurately adjust the weighing chassis to a level position when it is on uneven ground. This imbalance can lead to measurement errors; therefore, reducing these errors is a problem that urgently needs to be solved. Summary of the Invention

[0005] To reduce measurement deviation, this application provides a weighing device.

[0006] The weighing device provided in this application adopts the following technical solution:

[0007] A weighing device, comprising:

[0008] Base plate (2);

[0009] Weighing chassis (1), the weighing chassis (1) and the base plate (2) are distributed sequentially in a first direction, the weighing chassis (1) being perpendicular to the first direction;

[0010] A fixed column (4) is connected to the base plate (2), and the weighing chassis (1) is spherically hinged to the fixed column (4); and,

[0011] Two leveling components (5), each leveling component (5) comprising:

[0012] Support (51), the support (51) is rotatably connected to the base plate (2) about a first axis, the first axis being parallel to a first direction;

[0013] A first screw (52) is provided, the central axis of which coincides with the first axis; the first screw (52) passes through the base plate (2) and the support (51) and is threadedly connected to the support (51); the weighing base (1) is attached to the first screw (52); and,

[0014] A guide (53) is connected between the first screw (52) and the base plate (2) to guide the first screw (52) to move in a first direction;

[0015] On a plane perpendicular to the first direction, the fixed post (4) and the two first screws (52) are located at the three corners of the triangle.

[0016] By adopting the above technical solution, the ball joint connection between the fixed column and the weighing chassis allows the weighing chassis to be adjusted within a multi-degree-of-freedom range, adapting to different ground conditions. The two leveling components, through the synergistic action of the support, the first screw, and the guide, can precisely adjust the height and flatness of the weighing chassis, effectively solving the measurement deviation problem caused by uneven ground. Specifically, the support is rotatably connected to the base plate around the first axis. Combined with the threaded connection between the first screw and the support, and the function of the guide, stable support and fine leveling of the weighing chassis are achieved, thereby significantly improving the overall performance and reliability of the weighing device.

[0017] Optionally, it also includes an armrest assembly (3), the armrest assembly (3) comprising:

[0018] A handle (31), in a first direction, located on the side of the weighing chassis (1) away from the base plate (2); and;

[0019] A connecting frame (32) is fixedly connected between the handle (31) and the base plate (2).

[0020] By adopting the above technical solution, the handle is located on the side of the weighing chassis away from the base plate, ensuring stability and comfort during operation; while the connecting frame plays a key supporting and connecting role, firmly combining the handle with the base plate, enhancing the stability and reliability of the overall structure.

[0021] Optionally, it also includes a plurality of swivel casters (21) connected to the base plate (2).

[0022] By adopting the above technical solution, the weighing device has the advantage of being easy to move due to the addition of multiple swivel casters connected to the base plate.

[0023] Optionally, a plurality of first levers (511) are fixedly connected to the support (51), the first levers (511) coincide with the radius of the virtual circle, and the plurality of first levers (511) are evenly distributed around the virtual circle; in the direction of the virtual circle, a plug-in area (512) is formed between two adjacent first levers (511).

[0024] The central axis of the virtual circle coincides with the first axis.

[0025] By adopting the above technical solution, a more convenient operation method can be provided when the support rotates. Specifically, the design of multiple first levers evenly distributed around a virtual circumference allows the operator to easily find the point of force, and rotate the support by applying force to the first levers, thus improving the operational efficiency and convenience when adjusting the level of the weighing chassis.

[0026] Optionally, it also includes a drive device, each of which is used to drive one of the supports (51) to rotate; the drive device includes a drive assembly (6) and a toggle assembly (7);

[0027] The toggle assembly (7) includes:

[0028] A slider (71) is slidably connected to the base plate (2) in a second direction, and a driving assembly (6) is connected between the slider (71) and the base plate (2) to drive the slider (71) to move in the second direction;

[0029] A second lever (72) is rotatably connected to the slider (71) about a second axis parallel to a second direction; and,

[0030] A motor (73) is connected between the second lever (72) and the slider (71) to drive the second lever (72) to switch between an insertion posture and a separation posture;

[0031] When the second lever (72) is in the insertion posture, one end of the second lever (72) is located in the insertion area (512), and the second lever can contact the first lever (511) during the movement of the second lever in the second direction;

[0032] When the second lever (72) is in the disengaged position, the second lever (72) is located outside the insertion area (512), and the first lever (511) is located to the side of the movement trajectory of the second lever (72) along the second direction.

[0033] By adopting the above technical solution, the slider in the actuating assembly moves along the second direction, causing the second lever to approach or move away from the first lever. The motor controls the attitude change of the second lever to ensure that it can accurately insert into the insertion area and contact the first lever, thereby achieving precise rotation of the support. This design significantly improves the efficiency of the leveling operation.

[0034] Optionally, the driving component (6) includes:

[0035] A first mounting base (61) is fixedly connected to the base plate (2); and,

[0036] The second screw (62) has its central axis coincide with the second axis. The second screw (62) passes through the first mounting base (61) along the second direction and is threadedly connected to the first mounting base (61).

[0037] One end of the second screw (62) is located at the connecting frame (32), and the other end is located at the slider (71), and the end of the second screw (62) is rotatably connected to the slider (71) about the second axis.

[0038] By adopting the above technical solution, the slider can move precisely along the second direction; the threaded connection between the second screw and the first mounting base can effectively convert the rotational motion into linear motion when the second screw is rotated, thereby pushing the slider to move along a predetermined path.

[0039] Optionally, the driving component (6) further includes:

[0040] The second mounting base (63) is fixedly connected to the base plate (2);

[0041] A first rotating shaft (64) is rotatably connected to a second mounting base (63) about a third axis, and the first rotating shaft (64) is parallel to a first direction;

[0042] The first bevel gear (66) is located at one end of the first rotating shaft (64) at the handle (31) and at the other end at the base plate (2); the first bevel gear (66) is coaxially fixedly connected to the end of the first rotating shaft (64) near the base plate (2);

[0043] The second bevel gear (67) is rotatably connected to the second mounting base (63) about the second axis, and the second bevel gear (67) meshes with the first bevel gear (66);

[0044] A second rotating shaft (68) is coaxially and fixedly connected to the second bevel gear (67); the second rotating shaft (68) passes through the second mounting base (63) along a second direction and is rotatably connected to the second mounting base (63); and,

[0045] Telescopic rod (69), the telescopic direction of which is parallel to the second direction, one end of which is fixedly connected to the second rotating shaft (68), and the other end is fixedly connected to the second screw (62).

[0046] By adopting the above technical solution, the function of conveniently controlling the rotation of the support at the front end is realized. Specifically, the added first rotating shaft, in conjunction with the bevel gear transmission structure, allows the operator to easily rotate the first rotating shaft near the handle, thereby driving the second screw to rotate and pushing the slider to move.

[0047] Optionally, the drive assembly (6) further includes a handle (65) fixedly connected to the end of the first rotating shaft (64) away from the base plate (2).

[0048] By adopting the above technical solution, the operator can easily hold the handle and rotate the first shaft while standing, and then drive the slider to move in the second direction with the help of the transmission mechanism, so as to achieve precise rotation control of the support.

[0049] Optionally, a weighing scale (11) is fixedly connected to the weighing chassis (1).

[0050] By adopting the above technical solution, the function of integrating a weighing scale on a weighing chassis has been realized.

[0051] Optionally, the fixing post (4) is a screw rod arranged parallel to the first direction, the fixing post (4) passes through the base plate (2) along the first direction, and the fixing post (4) is threaded to the base plate (2) around its own axis.

[0052] By adopting the above technical solution, the fixing column is designed as a screw parallel to the first direction and inserted into the base plate. The position of the fixing column relative to the base plate can be adjusted by rotation, thereby changing the height or tilt angle of the weighing chassis. This design gives the weighing chassis more flexible adjustment capabilities, allowing it to reach a level state through fine adjustments on uneven ground, significantly improving weighing accuracy. Simultaneously, the threaded connection achieves stepless adjustment and a self-locking function, ensuring stability after leveling.

[0053] In summary, this application includes at least one of the following beneficial technical effects:

[0054] 1. Through the ball joint design of the fixed column and the weighing chassis, combined with the function of two leveling components, the weighing chassis can be quickly and accurately adjusted to a level position on uneven ground, significantly reducing the measurement error caused by uneven ground.

[0055] 2. The first screw in the leveling assembly works in conjunction with the guide to ensure that the first screw moves smoothly in the predetermined direction, thereby improving the stability and accuracy of the leveling process;

[0056] 3. The design of the handle and armrest components makes the entire device easy to move and operate, while the drive device has a high degree of automation, reducing manual intervention and improving work efficiency. Attached Figure Description

[0057] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0058] Figure 2 This is a schematic diagram of the structure of the base plate and the first mounting base in the embodiments of this application;

[0059] Figure 3 yes Figure 2 Enlarged view of section A;

[0060] Figure 4 yes Figure 2 Enlarged view of section B;

[0061] Figure 5 yes Figure 1 Enlarged view of section C.

[0062] Explanation of reference numerals in the attached drawings: 1. Weighing chassis; 11. Weighing scale; 2. Base plate; 21. Universal caster; 3. Handrail assembly; 31. Handle; 32. Connecting frame; 4. Fixed column; 41. Ball seat; 42. Universal ball; 5. Leveling assembly; 51. Support; 511. First lever; 512. Insertion area; 52. First screw; 53. Guide component; 54. Connecting rod; 6. Drive assembly; 61. First mounting base; 62. Second screw; 63. Second mounting base; 64. First rotating shaft; 65. Handle; 66. First bevel gear; 67. Second bevel gear; 68. Second rotating shaft; 69. Telescopic rod; 691. Fixed rod; 692. Sliding rod; 7. Actuating assembly; 71. Slider; 711. Slide groove; 712. Third mounting base; 72. Second lever; 73. Motor; 74. Guide rail. Detailed Implementation

[0063] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. For ease of description, this application introduces directional terms such as "first direction" and "second direction". The specific directional terms used, such as "first direction" and "second direction", can be seen in the figure, where X represents the first direction and Y represents the second direction, and the first direction and the second direction are perpendicular to each other.

[0064] This application discloses a weighing device. (Refer to...) Figure 1 The weighing device includes a weighing chassis 1 and a base plate 2 arranged sequentially in a first direction. In this disclosure, both the base plate 2 and the weighing chassis 1 are arranged perpendicular to the first direction. A weighing scale 11 is fixedly connected to the weighing chassis 1. The weighing scale 11 is located on the side of the weighing chassis 1 away from the base plate 2 and is used to weigh goods. A plurality of swivel casters 21 are connected to the base plate 2 by screws. The swivel casters 21 are located on the side of the base plate 2 away from the weighing chassis 1. In this disclosure, there are four swivel casters 21 arranged in a matrix.

[0065] Reference Figure 1 In the second direction, one end of the base is the front end and the other end is the rear end. In order to facilitate the movement of personnel pushing the base plate 2, in some embodiments of this application, a handrail assembly 3 is also included. The handrail assembly 3 is located at the front end of the base plate 2. The handrail assembly 3 includes a handle 31 and a connecting frame 32. In the first direction, the handle 31 is located on the side of the weighing chassis 1 away from the base plate 2, and the connecting frame 32 is fixedly connected between the handle 31 and the base plate 2. When it is necessary to move the entire weighing device, the personnel only need to hold the handle 31 to push the entire weighing device to move.

[0066] Reference Figure 2 and Figure 3 This application also includes a fixing post 4, which is connected to the base plate 2 and is located at the front end of the base plate 2. In this disclosure, the fixing post 4 is a screw rod arranged parallel to the first direction. The fixing post 4 passes through the base plate 2 along the first direction and is threaded to the base plate 2 around its own central axis. The weighing chassis 1 is ball-jointed to the fixing post 4. Specifically, a universal ball 42 is fixedly connected to one end of the fixing post 4 near the base plate 2, and a ball seat 41 is fixedly connected to one side of the weighing chassis 1 near the base plate 2. The universal ball 42 is adapted to be installed on the ball seat 41 and can rotate around the ball seat 41 in any direction.

[0067] Reference Figure 2 and Figure 4 This application also includes two leveling components 5. On a plane perpendicular to the first direction, the fixed post 4 and two leveling first screws 52 are respectively located at the three corners of a triangle. The leveling component 5 includes a support 51, a first screw 52, ​​and a guide 53. In this disclosure, the support 51 is annular, and the central axis of the annular support 51 coincides with the first axis, which is parallel to the first direction. The support 51 is rotatably connected to the base plate 2 around the first axis. The central axis of the first screw 52 coincides with the first axis. The first screw 52 passes through the base plate 2 along the first direction and is threadedly connected to the support 51. Specifically, a through hole is provided on the base plate 2 for the first screw 52 to pass through and rotate along the first direction. The weighing base 1 overlaps the end of the leveling first screw 52.

[0068] The guide member 53 is connected between the first screw 52 and the base plate 2 to guide the first screw 52 to move in the first direction. Specifically, a connecting rod 54 is fixedly connected to the first screw 52, ​​and the guide member 53 is a telescopic rod 69 that can extend and retract in the first direction. One end of the guide member 53 is fixedly connected to the connecting rod 54, and the other end is fixedly connected to the base plate 2 to guide the rotation of the first screw 52 in the first direction. During the rotation of the rotating support 51, since the guide member 53 guides the first screw 52, ​​the first screw 52 will move in the first direction, thereby supporting the weighing base 1 to the required height and leveling the weighing base 1.

[0069] Reference Figure 4 In some embodiments of this application, in order to facilitate the rotation of the support 51, a plurality of first levers 511 are fixedly connected to the support 51. The first levers 511 coincide with the radius of the virtual circle, the central axis of the virtual circle coincides with the first axis, and the plurality of first levers 511 are evenly distributed around the virtual circle. In the circumferential direction of the virtual circle, an insertion area 512 is formed between two adjacent first levers 511. The support 51 can be rotated simply by moving the first lever 511. The first lever 511 makes it easy for personnel to apply force to the support 51.

[0070] Reference Figure 4 In some embodiments of this application, two driving devices are also included, each driving device being used to drive a support 51 to rotate; the driving device includes a driving component 6 and a toggle component 7.

[0071] The toggle assembly 7 includes a slider 71, a second lever 72, and a motor 73;

[0072] The slider 71 is slidably connected to the base plate 2 along the second direction. In order to facilitate the sliding of the slider 71, a guide rail 74 is fixedly connected to the base plate 2. The guide rail 74 is parallel to the second direction and is a T-shaped track. A groove 711 adapted to the cross-sectional shape of the track is opened on the slider 71. The guide rail 74 is located in the groove 711 so as to guide the slider 71 to slide along the second direction.

[0073] The second lever 72 is rotatably connected to the slider 71 about a second axis, the second axis being parallel to a second direction. The motor 73 is connected between the second lever 72 and the slider 71 to drive the second lever 72 to switch between an insertion posture and a separation posture. Specifically, a third mounting base 712 is fixedly connected to the slider 71, the housing of the motor 73 is fixedly connected to the third mounting base 712, and the output shaft of the motor 73 is fixedly connected to the second lever 72 so that the second lever 72 is driven to rotate by the motor 73.

[0074] When the second lever 72 is in the insertion posture, one end of the second lever 72 is located in the insertion area 512, and the lever can contact the first lever 511 during the movement of the lever in the second direction.

[0075] When the second lever 72 is in the disengaged position, the second lever 72 is located outside the insertion area 512, and the first lever 511 is located to the side of the movement trajectory of the second lever 72 along the second direction.

[0076] Reference Figure 2 and Figure 4 The drive assembly 6 is connected between the slider 71 and the base plate 2 to drive the slider 71 to move along the second direction. The drive assembly 6 includes a first mounting base 61 and a second screw 62. The first mounting base 61 is fixedly connected to the base plate 2. The central axis of the second screw 62 coincides with the second axis. The second screw 62 passes through the first mounting base 61 along the second direction and is threadedly connected to the first mounting base 61. One end of the second screw 62 is located at the connecting bracket 32, that is, at the front end of the base plate 2, so that a person can stand at the front end of the base plate 2 to drive the screw to rotate. The other end is located at the slider 71, and the end of the second screw 62 is rotatably connected to the slider 71 around the second axis. During the rotation of the second screw 62, since the second screw 62 is rotatably connected to the slider 71, the slider 71 can be driven to move along the second direction by the second screw 62.

[0077] Reference Figure 2 , Figure 4 and Figure 5 To further facilitate the rotation of the support 51 at the front end, in some embodiments of this application, the drive assembly 6 further includes a second mounting base 63, a first rotating shaft 64, a handle 65, a first bevel gear 66, a second bevel gear 67, a second rotating shaft 68, and a telescopic rod 69.

[0078] The second mounting base 63 is fixedly connected to the base plate 2. The first rotating shaft 64 is located at the front end of the base plate 2. The first rotating shaft 64 is parallel to the first direction and is rotatably connected to the second mounting base 63 around the third axis. One end of the first rotating shaft 64 is located at the handle 31, and the other end is located at the base plate 2. It allows personnel to hold the end of the shaft near the handle 31 and rotate it when standing, which is convenient for personnel to work. The handle 65 is fixedly connected to the end of the first rotating shaft 64 away from the base plate 2, so that personnel can hold the handle 65 and rotate the first rotating shaft 64.

[0079] The first bevel gear 66 is coaxially and fixedly connected to one end of the first rotating shaft 64 near the base plate 2, and the first bevel gear 66 is rotatably connected to the second mounting base 63 around its own central axis; the second bevel gear 67 is rotatably connected to the second mounting base 63 around a second axis, and the second bevel gear 67 meshes with the first bevel gear 66; the second rotating shaft 68 is coaxially and fixedly connected to the second bevel gear 67, and the second rotating shaft 68 passes through the second mounting base 63 along a second direction and is rotatably connected to the second mounting base 63; during the rotation of the first rotating shaft 64, the first rotating shaft 64 drives the second rotating shaft 68 to rotate through the meshing of the first bevel gear 66 and the second bevel gear 67. One end of the telescopic rod 69 is fixedly connected to the second rotating shaft 68, and the other end is fixedly connected to the second screw 62. The telescopic direction of the telescopic rod 69 is parallel to the second direction. The telescopic rod 69 can rotate synchronously with the second rotating shaft 68. The telescopic rod 69 includes a fixed rod 691 and a sliding rod 692. The fixed rod 691 is fixedly connected to the second rotating shaft 68. The sliding rod 692 passes through the fixed rod 691 and can move along the second direction within the fixed rod 691. The cross-section of the fixed rod 691 perpendicular to the second direction is rectangular to prevent relative rotation between the fixed rod 691 and the sliding rod 692, thereby enabling the second screw 62 to rotate synchronously with the telescopic rod 69.

[0080] The implementation principle of a weighing device according to an embodiment of this application is as follows: When in use, after moving the weighing device to the required position, if the weighing chassis 1 is in an inclined state, the slider 71 can be moved along the second direction by rotating the first rotating shaft 64. Subsequently, the second lever 72 is driven by the motor 73 to rotate to the insertion area 512, and then the second screw 62 pushes the second lever 72 to move from the initial position along the second direction, so that the first lever 511 can be rotated. If the rotation angle is insufficient in one go, the second lever 72 can be separated from the insertion area 512, and the slider 71 can be reset to the initial position and the aforementioned tossing action can be repeated.

[0081] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A metering and weighing device, characterized in that, The utility model relates to a kind of weighing platform, including: Bottom plate (2); Weighing chassis (1), the weighing chassis (1) and the bottom plate (2) are sequentially distributed in the first direction, the weighing chassis (1) is perpendicular to first direction; Fixed column (4), the fixed column (4) is connected to the bottom plate (2), the weighing chassis (1) is spherically articulated to the fixed column (4); And, Two leveling assemblies (5), the leveling assembly (5) includes: Support (51), the support (51) is rotatably connected to the bottom plate (2) around first axis, first axis is parallel to first direction; First screw rod (52), the central axis of the first screw rod (52) coincides with first axis;The first screw rod (52) is provided in the bottom plate (2) and the support (51), and is threadedly connected with the support (51);The weighing chassis (1) is overlapped on the first screw rod (52);And, Guide (53), the guide (53) is connected between the first screw rod (52) and the bottom plate (2), for guiding the first screw rod (52) moves along first direction; In the plane perpendicular to first direction, the fixed column (4) and two the first screw rod (52) are respectively located at three angles of triangle.

2. A metering scale as claimed in claim 1, wherein Also include handrail assembly (3), the handrail assembly (3) includes: Handle (31), in first direction, the handle (31) is located on the side of the weighing chassis (1) away from the bottom plate (2);And; Connecting frame (32), the connecting frame (32) is fixedly connected between the handle (31) and the bottom plate (2).

3. A metering scale as claimed in claim 1, wherein, Also include multiple universal casters (21), the universal caster (21) is connected to the bottom plate (2).

4. A metering scale as claimed in claim 2, wherein The support (51) is fixedly connected with a plurality of first shift rods (511), the first shift rod (511) coincides with the radius of virtual circle, and a plurality of the first shift rod (511) is evenly distributed around virtual circle;In virtual circle circumferential, two adjacent first shift rods (511) form insertion area (512) between; The central axis of virtual circle coincides with first axis.

5. A metering scale as claimed in claim 4, wherein Also include drive device, each drive device is correspondingly used to drive one support (51) rotation;The drive device includes drive assembly (6) and shift assembly (7); The shift assembly (7) includes: Sliding block (71), the sliding block (71) is slidably connected to the bottom plate (2) along second direction, the drive assembly (6) is connected between the sliding block (71) and the bottom plate (2), for driving the sliding block (71) moves along second direction; Second shift rod (72), the second shift rod (72) is rotatably connected to the sliding block (71) around second axis, the second axis is parallel to second direction;And, Motor (73), the motor (73) is connected between the second shift rod (72) and the sliding block (71), for driving the second shift rod (72) is changed between insertion posture and separation posture; When the second dial lever (72) is in the plugging posture, one end of the second dial lever (72) is located in the plugging area (512), and the second dial lever (72) can be in contact with the first dial lever (511) during movement in the second direction; When the second dial lever (72) is in the separating posture, the second dial lever (72) is located outside the plugging area (512), and the first dial lever (511) is located on the side of the movement track of the second dial lever (72) in the second direction.

6. A metering and weighing device according to claim 5, characterized in that The driving assembly (6) comprises: a first mounting seat (61) fixedly connected to the bottom plate (2); and a second screw rod (62) whose central axis coincides with the second axis, the second screw rod (62) being arranged in the first mounting seat (61) in the second direction and being threadedly connected with the first mounting seat (61); one end of the second screw rod (62) being located at the connecting frame (32) and the other end being located at the sliding block (71), and the end of the second screw rod (62) being rotationally connected to the sliding block (71) about the second axis.

7. A metering and weighing device according to claim 6, characterized in that The driving assembly (6) further comprises: a second mounting seat (63) fixedly connected to the bottom plate (2); a first rotating shaft (64) rotationally connected to the second mounting seat (63) about a third axis and parallel to the first direction; a first bevel gear (66) coaxially fixedly connected to one end of the first rotating shaft (64) close to the bottom plate (2); a second bevel gear (67) rotationally connected to the second mounting seat (63) about the second axis and meshed with the first bevel gear (66); a second rotating shaft (68) coaxially fixedly connected to the second bevel gear (67); the second rotating shaft (68) being arranged in the second mounting seat (63) in the second direction and rotationally connected with the second mounting seat (63); and a telescopic rod (69) whose telescopic direction is parallel to the second direction, one end of the telescopic rod (69) being fixedly connected to the second rotating shaft (68) and the other end being fixedly connected to the second screw rod (62).

8. A metering scale as claimed in claim 7, wherein, The driving assembly (6) further comprises a handle (65) fixedly connected to one end of the first rotating shaft (64) away from the bottom plate (2).

9. A metering scale as claimed in any one of claims 1 to 8, wherein, The weighing chassis (1) is fixedly connected with a metering scale (11).

10. A metering and weighing device according to claim 9, characterized in that The fixed column (4) is a screw rod parallel to the first direction, the fixed column (4) being arranged in the bottom plate (2) in the first direction and being threadedly connected to the bottom plate (2) about its own axis.

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