Anti-slosh mechanism and weighing apparatus

Abstract

The utility model provides a kind of anti-shake mechanism and weighing equipment, it is related to weighing technical field.Anti-shake mechanism includes pull rod and axial limiting structure;Pull rod is used to be horizontally set in the connecting hole of the scale body of weighing equipment, and is set in the other connecting hole of the support frame of weighing equipment;Pull rod is connected with axial limiting structure at any connecting hole, and axial limiting structure is adjustable in the axial position of pull rod, for abutting with the end surface of connecting hole, to limit the axial movement of pull rod.The utility model discloses an anti-shake mechanism, which can prevent the scale body of weighing equipment from shaking, improve the reliability of the stress of weighing equipment and the reliability of weighing data, has simple structure and strong practicability.

Description

Technical Field

[0001] This utility model relates to the field of weighing technology, and more specifically, to an anti-sway mechanism and weighing equipment. Background Technology

[0002] In weighing equipment, the scale body (such as the weighing platform or weighing bin) is usually suspended in the air and supported by a support frame via a weighing unit (which typically includes multiple load cells). Currently, to ensure the accuracy of the weighing unit, a horizontal limiting force is usually provided by inserting vertical limit pins and limit holes. This prevents the scale body from moving laterally due to the impact force when materials are placed in, thus avoiding lateral forces on the weighing unit and ensuring its accuracy.

[0003] However, this setup requires high precision in machining the limit pins and limit holes, and it is difficult to adjust the relative positions of the weighing body and the support frame according to actual needs to adjust the horizontal force between them. For example, when the weighing equipment is used for a period of time and the limit pins and limit holes are worn, it will be difficult to achieve an effective anti-sway effect. Utility Model Content

[0004] This utility model aims to solve, to a certain extent, the problem of how to prevent the scale body of weighing equipment from shaking and improve the force reliability of weighing equipment and the reliability of weighing data in related technologies.

[0005] To at least partially address at least one aspect of the aforementioned problems, in a first aspect, this utility model provides an anti-sway mechanism, comprising a pull rod and an axial limiting structure; the pull rod is horizontally inserted through a connection hole provided in the scale body of the weighing equipment, and also through another connection hole provided in the support frame of the weighing equipment; the pull rod is correspondingly connected to the axial limiting structure at any of the connection holes, and the axial limiting structure is adjustable in axial position to abut against the end face of the connection hole to restrict the axial movement of the pull rod.

[0006] Optionally, the pull rod is connected to two axial limiting structures at any of the connecting holes, and the two axial limiting structures are respectively used to abut against the two end faces of the corresponding connecting holes.

[0007] Optionally, the anti-sway mechanism further includes a conical gasket and a spherical gasket, wherein the conical gasket and the spherical gasket are arranged between the axial limiting structure and the end face of the corresponding connecting hole, and the conical cavity of the conical gasket matches the spherical surface of the spherical gasket.

[0008] Optionally, the two connecting holes connected to the pull rod include a first connecting hole and a second connecting hole. The first connecting hole is larger in the vertical direction than the diameter of the pull rod. The pull rod is configured to be movable relative to the first connecting hole in the vertical direction so that the pull rod can be horizontally inserted through the first connecting hole and the second connecting hole.

[0009] Optionally, the first connecting hole has a U-shaped cross-section, with the opening of the U-shape facing upwards; the second connecting hole has a circular cross-section.

[0010] Optionally, the scale body includes a scale body and a first support located below the scale body, the first support being detachably connected to or integrally connected to the scale body; the support frame includes a support body and a second support, the second support being detachably connected to or integrally connected to the support body; the first support is provided with a first connecting hole, and the second support is provided with a second connecting hole.

[0011] Optionally, the number of the pull rods may be multiple;

[0012] At least two of the multiple tie rods are arranged at a preset angle;

[0013] And / or, at least two of the plurality of tie rods are spaced apart, and the axes of at least two of the tie rods are parallel.

[0014] Optionally, the axial limiting structure includes multiple nuts, which are coaxially arranged on the same side of the connecting hole and threadedly connected to the pull rod.

[0015] Secondly, this utility model provides a weighing device, which includes a scale body, a support frame, a weighing unit, and an anti-sway mechanism as described in the first aspect above; the pull rod of the anti-sway mechanism is horizontally inserted through a connection hole provided in the scale body, and also through another connection hole provided in the support frame.

[0016] Optionally, the scale body includes a scale body and a first support located below the scale body. The support frame includes a support body and a second support. The first support and the second support are arranged in a one-to-one correspondence and are respectively provided with the connection hole. The support body is a rectangular frame. The top of each side of the rectangular frame is provided with the second support. The axial direction of the pull rod connected to the second support extends along the length direction of the side corresponding to the second support. Weighing sensors are respectively provided at the four corners of the rectangular frame.

[0017] In the anti-sway mechanism and weighing equipment of this utility model, the tie rod can be horizontally inserted into the connection hole of the scale body and the support frame, and an axially adjustable axial limiting structure is provided on the tie rod. The anti-sway mechanism can abut against the end face of the connection hole through the axial limiting structure, thereby adjusting the axial position of each axial limiting structure according to the actual need to limit the relative movement of the scale body and the support frame in the axial direction of the tie rod. That is, adjusting the gap between the axial limiting structure and the end face of the corresponding connection hole, avoiding the gap being too small, which would cause the scale body and the support frame to be pulled too tightly through the tie rod, resulting in the anti-sway mechanism transmitting part of the weight of the scale body, thus avoiding affecting the weighing reliability of the weighing equipment. It can also avoid the gap being too large, which would cause the load cell to be impacted by horizontal loads. By adjusting the position of the axial limiting structure according to actual needs, the horizontal impact force in the axial direction of the tie rod during the use of the weighing equipment can be borne by the force transmission path formed by the scale body, tie rod, and support frame, reducing the impact of horizontal loads on the load cell. Furthermore, this setting facilitates regular inspection of the weighing equipment and adjustment of the position of the axial limiting structure according to the actual use of the weighing equipment. Furthermore, by transmitting force through a tie rod, even if the scale body tilts axially due to uneven load on the load, the tilting amplitude of the tie rod is small, still providing a reliable horizontal limiting force to counteract the horizontal load on the scale body. This anti-sway mechanism prevents the scale body of the weighing equipment from swaying, improves the force reliability of the weighing equipment and the reliability of the weighing data, and has a simple structure and strong practicality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the weighing device in an embodiment of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of a section at point I;

[0020] Figure 3 This is a schematic diagram of the structure of an anti-sway structure in the weighing equipment after an explosion, as described in an embodiment of this utility model.

[0021] Figure 4 for Figure 3 Enlarged view of a section at point II;

[0022] Figure 5 This is another exploded structural diagram of the weighing device in an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1-Pull rod; 2-Axial limiting structure; 21-Nut; 3-Scale body; 31-Scale main body; 32-First support; 4-Support frame; 41-Support main body; 411-Side frame; 42-Second support; 5-Connecting hole; 51-First connecting hole; 52-Second connecting hole; 6-Conical gasket; 7-Spherical gasket; 8-Flat gasket; 9-Weighing unit; 91-Weighing sensor. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0028] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0029] In the attached figures, the X-axis represents the front-to-back position, with the positive direction of the X-axis (i.e., the direction the arrow points) indicating the front and the negative direction indicating the rear. The Y-axis represents the horizontal direction and is designated as the left-to-right position, with the positive direction of the Y-axis (i.e., the direction the arrow points) indicating the right and the negative direction indicating the left. The Z-axis represents the vertical direction, i.e., the up-down position, with the positive direction of the Z-axis (i.e., the direction the arrow points) indicating up and the negative direction indicating down. It should be noted that the aforementioned representations of the X, Y, and Z axes are merely 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. Therefore, they should not be construed as limitations on this utility model.

[0030] like Figures 1 to 4 As shown, an embodiment of this utility model provides an anti-sway mechanism, including a pull rod 1 and an axial limiting structure 2; the pull rod 1 is horizontally inserted through a connection hole 5 provided in the scale body 3 of the weighing equipment, and also through another connection hole 5 provided in the support frame 4 of the weighing equipment; the pull rod 1 is connected to an axial limiting structure 2 at any connection hole 5, and the axial position of the axial limiting structure 2 is adjustable, and is used to abut against the end face of the connection hole 5 to limit the axial movement of the pull rod 1.

[0031] Specifically, the support frame 4 supports the scale body 3 through the weighing unit 9 of the weighing equipment. The weighing unit 9 only needs to be able to support the scale body 3; its structural form is not limited. This specification uses the example of the scale body 3 having a rectangular projection in the vertical direction. For example, refer to... Figure 5 The weighing unit 9 has weighing sensors 91 arranged at the four corners of the rectangle, and the weighing is performed by multiple weighing sensors 91 together.

[0032] In this embodiment, the structural forms of the connecting hole 5 on the scale body 3 and the other connecting hole 5 on the support frame 4 do not need to be exactly the same. They can be arranged according to the actual situation. The arrangement of the two connecting holes 5 should allow the weighing equipment to have space for the installation and adjustment of the pull rod 1. Based on this, the arrangement of the two connecting holes 5 is not a limitation. Similarly, the structures of each axial limiting structure 2 can be different. They can be connected to the pull rod 1 in an adjustable position and are used to abut against the end face of the corresponding connecting hole 5 to limit the axial movement of the pull rod 1.

[0033] Here, during the commissioning phase of the weighing equipment, the position of the axial limiting structure 2 on the tie rod 1 can be adjusted according to actual needs. The pre-tightening force between the axial limiting structure 2 and the connecting hole 5 can be adjusted by adjusting the gap between them.

[0034] Thus, in the anti-sway mechanism of this utility model, the pull rod 1 can be horizontally inserted into the connection hole 5 between the scale body 3 and the support frame 4, and an axially adjustable axial limiting structure 2 is provided on the pull rod 1. The anti-sway mechanism can abut against the end face of the connection hole 5 through the axial limiting structure 2, thereby adjusting the axial position of each axial limiting structure 2 according to the actual need to limit the relative movement of the scale body 3 and the support frame 4 in the axial direction of the pull rod 1. That is, adjusting the gap between the axial limiting structure 2 and the end face of the corresponding connection hole 5, avoiding the gap being too small, which would cause the scale body 3 and the support frame 4 to be pulled too tightly through the pull rod 1, resulting in the anti-sway mechanism transmitting part of the weight of the scale body 3, thus avoiding affecting the weighing reliability of the weighing equipment. It can also avoid the gap being too large, which would cause the weighing sensor 91 to be impacted by the horizontal load. By adjusting the position of the axial limiting structure 2 according to the actual needs, the horizontal impact force in the axial direction of the pull rod 1 when the weighing equipment is in use can be borne by the force transmission path formed by the scale body 3, the pull rod 1, and the support frame 4, reducing the impact of the horizontal load on the weighing sensor 91. Furthermore, this configuration facilitates regular inspections of the weighing equipment and allows for adjustments to the position of the axial limiting structure 2 based on actual usage. Additionally, by transmitting force through the tie rod 1, even if the scale body 3 tilts axially due to uneven load distribution on the tie rod 1, the tilting amplitude is small, still providing a reliable horizontal limiting force to counteract the horizontal load on the scale body 3. This anti-sway mechanism prevents the scale body 3 from swaying, improving the reliability of the weighing equipment's force distribution and the reliability of weighing data. It features a simple structure and strong practicality.

[0035] like Figure 2 and Figure 4 As shown, optionally, the axial limiting structure 2 includes a plurality of nut pieces 21, which are coaxially arranged on the same side of the connecting hole 5 and threadedly connected to the pull rod 1.

[0036] Specifically, the axial limiting structure 2 includes two nut pieces 21, both of which are located on the same side of the connecting hole 5 and are threadedly connected to the pull rod 1 respectively.

[0037] In this way, by adjusting the gap between the nut 21 and the end face of the connecting hole 5, the relative axial movement gap between the scale body 3 and the support frame 4 on the tie rod 1 can be adjusted. This avoids the anti-sway mechanism sharing the weight of the scale body 3, ensuring that the gravity of the scale body 3 is transmitted to the weighing unit 9. Furthermore, the anti-sway mechanism can transmit horizontal forces between the scale body 3 and the support frame 4, preventing the horizontal forces on the scale body 3 from being transmitted to the weighing unit 9, thus avoiding affecting the structural reliability of the weighing unit 9 and the reliability of the weighing data. Multiple nuts 21 can be axially tightened to prevent the nuts 21 from shifting.

[0038] Of course, it should be noted that the axial limiting structure 2 is not limited to this method. Other methods can also be used. For example, the axial limiting structure 2 can be a clamp that holds the tie rod 1. This scheme is not shown in the figure and will not be described in detail here.

[0039] like Figure 2 and Figure 4 As shown, optionally, the pull rod 1 is connected to two axial limiting structures 2 at any connecting hole 5, and the two axial limiting structures 2 abut against the two end faces of the corresponding connecting hole 5 respectively.

[0040] Specifically, two axial limiting structures 2 are respectively provided at both ends of the connecting hole 5 in the axial direction of the tie rod 1. For example, nut pieces 21 are respectively connected to both sides of the connecting hole 5 on the tie rod 1.

[0041] Thus, by tightening the nuts 21 on both sides of the same connecting hole 5, the movement gap (or "free travel") between the scale body 3 and the support frame 4 in the axial direction of the pull rod 1 can be further compressed to, for example, the micrometer level. This ensures that the scale body 3 is firmly held in the horizontal direction without swaying, while leaving a small gap that does not interfere with vertical weighing, which is beneficial to improving its anti-sway effect. Of course, in another method, the nut 21 located inside the connecting hole 5 can be replaced by a step or boss formed by the pull rod 1, which will not be described in detail here.

[0042] like Figure 4 As shown, optionally, it also includes a conical gasket 6 and a spherical gasket 7. The conical gasket 6 and the spherical gasket 7 are arranged between the end faces of the axial limiting structure 2 and the corresponding connecting hole 5, and the conical cavity of the conical gasket 6 matches the spherical surface of the spherical gasket 7.

[0043] Specifically, the anti-sway mechanism also includes a flat washer 8, which is distributed in sequence along the axial direction of the tie rod 1, corresponding to the arbitrary axial limiting structure 2, from the end face of the connecting hole 5 to the axial limiting structure 2. The flat washer 8, the spherical washer 7, and the conical washer 6 are distributed in sequence.

[0044] Thus, the spherical surface of the spherical gasket 7 can swing slightly within the conical cavity of the conical gasket 6, forming a ball joint effect. In some scenarios, when the axis of the connecting hole 5 and the axis of the pull rod 1 are slightly deviated due to manufacturing tolerances of the scale body 3, or when the scale body 3 is unevenly loaded along the axis of the pull rod 1, resulting in one end of the scale body 3 being higher than the other, and causing a slight angular deviation between the axis of the connecting hole 5 and the axis of the pull rod 1, the spherical pair can instantly adapt, so that the clamping force of the nut 21 on the end face of the connecting hole 5 is always transmitted along the axis of the pull rod 1, avoiding the generation of eccentric bending moment, ensuring the counteracting effect of the horizontal impact force on the scale body 3, thereby preventing the weighing sensor 91 from being subjected to additional lateral force, and helping to improve the force transmission reliability of the anti-sway mechanism and extend its service life.

[0045] like Figure 4As shown in the above embodiment, optionally, the two connecting holes 5 connected to the pull rod 1 include a first connecting hole 51 and a second connecting hole 52. The size of the first connecting hole 51 in the vertical direction is larger than the diameter of the pull rod 1. The pull rod 1 is configured to be movable relative to the first connecting hole 51 in the vertical direction so that the pull rod 1 can be horizontally inserted into the first connecting hole 51 and the second connecting hole 52.

[0046] Specifically, the first connecting hole 51 extends vertically, allowing the pull rod 1 to extend vertically relative to the first connecting hole 51. The position of the pull rod 1 relative to the first connecting hole 51 in the vertical direction can be adjusted according to the horizontal arrangement requirements of the pull rod 1. Furthermore, after long-term operation, the weighing equipment may experience slight sinking due to creep or mechanical wear of the load cell 91. The structure of the first connecting hole 51 allows the scale body 3 to sink freely without being "blocked" by the pull rod 1, thus preventing the anti-sway mechanism from accidentally sharing the weight of the scale body 3 and ensuring that the weighing accuracy is not compromised.

[0047] Here, the arrangement of the second connecting hole 52 is not limited; it can be the same as or different from the first connecting hole 51.

[0048] like Figure 4 As shown, in a further alternative embodiment, the cross-sectional shape of the first connecting hole 51 is U-shaped, and the opening of the U-shape faces upward; the cross-sectional shape of the second connecting hole 52 is circular, and the diameter of the circle matches the diameter of the pull rod 1.

[0049] Specifically, the pull rod 1 can enter or exit the first connecting hole 51 from the opening of the U-shape.

[0050] Thus, when installing the tie rod 1, one end of the tie rod 1 can be inserted into the second connecting hole 52 first, and then the tie rod 1 can be placed into the first connecting hole 51 through the opening. This reduces the horizontal space requirement when assembling and disassembling the tie rod 1, making it easier to install the tie rod 1.

[0051] like Figure 4 As shown in the above embodiment, optionally, the scale body 3 includes a scale body 31 and a first support 32 located below the scale body 31, the first support 32 being detachably connected to the scale body 31 or integrally connected; the support frame 4 includes a support body 41 and a second support 42, the second support 42 being detachably connected to the support body 41 or integrally connected; the first support 32 is provided with a first connecting hole 51, and the second support 42 is provided with a second connecting hole 52.

[0052] The accompanying drawings of this specification show that the first support 32 is detachably connected to the scale body 31, and the second support 42 is detachably connected to the support body 41.

[0053] In this case, the space between the weighing body 31 and the support body 41 in the upper and lower directions can be used to arrange the first support 32 and the second support 42. The spatial layout is more reasonable and helps to reduce the structural complexity of the first support 32 and the second support 42.

[0054] In this specification, the supporting body 41 can be formed by connecting multiple channel steels, and the multiple channel steels can form a rectangular frame. The scale body 31 can be a platform structure or a box-shaped structure with an open top, etc., which are not considered limitations.

[0055] In the above embodiments, optionally, there are multiple pull rods 1; at least two of the multiple pull rods 1 are arranged at a preset angle.

[0056] like Figure 5 As shown in this specification, the preset included angle can be a right angle. Specifically, at least two adjacent side frames 411 of the above-mentioned rectangular frame are respectively connected to the top of a second support 42, and the second support 42 is correspondingly connected to a tie rod 1. That is to say, at least one of the multiple tie rods 1 is distributed along the X-axis direction, and at least another one is distributed along the Y-axis direction.

[0057] In this way, the multiple tie rods 1 arranged at an angle can form a cross-shaped limiting frame in the horizontal plane, which can restrict the free translation of the scale body 3 in the X-axis and Y-axis directions. The scale body 3 has only a small motion margin in each horizontal direction (this motion margin is determined by the axial motion clearance of the tie rod 1 relative to the connecting hole 5). The impact force on the scale body 3 in any direction in the horizontal plane can be converted and decomposed into impact force in the X-axis direction and impact force in the Y-axis direction, which can be canceled by the multiple tie rods 1 arranged at an angle, so that the scale body 3 will neither sway nor become statically indeterminate, resulting in redundant internal forces in the horizontal plane.

[0058] like Figure 5 As shown in the above embodiment, optionally, at least two of the multiple tie rods 1 are distributed at intervals, and the axes of at least two tie rods 1 are parallel.

[0059] Specifically, the top ends of the opposite two side frames 411 of the rectangular frame are respectively connected to the second support 42, and the second support 42 is connected to the tie rod 1.

[0060] As shown in the figure, the top ends of the two rectangular side frames 411 extending along the X-axis are respectively provided with second supports 42, and each second support 42 is connected to a tie rod 1 extending along the Y-axis.

[0061] In this way, the positional stability of the weighing body 3 along the axial direction of the tie rods 1 can be ensured by multiple tie rods 1 with parallel axes. Furthermore, multiple tie rods 1 can provide tension at different positions. In some scenarios, such as when a set of diagonally opposite positions of the weighing body 3 are subjected to opposite and outward impact forces along the X-axis, the weighing body 3 tends to twist around the Z-axis in the XY plane. In this case, the twisting of the weighing body 3 can be prevented by the coordinated action of multiple tie rods 1. The structure is simple and ensures the reliability of the force on the weighing unit 9 and the reliability of the weighing data.

[0062] Another embodiment of this utility model provides a weighing device, which includes a scale body 3, a support frame 4, a weighing unit 9, and an anti-sway mechanism as described in the above embodiment; the pull rod 1 of the anti-sway mechanism is horizontally inserted through a connection hole 5 provided in the scale body 3, and also through another connection hole 5 provided in the support frame 4.

[0063] like Figure 5 As shown, optionally, the scale body 3 includes a scale body 31 and a first support 32 located below the scale body 31. The support frame 4 includes a support body 41 and a second support 42. The first support 32 and the second support 42 are arranged in a one-to-one correspondence and are respectively provided with connecting holes 5. The support body 41 is a rectangular frame. The top of each side frame 411 of the rectangular frame is provided with a second support 42. The axial direction of the pull rod 1 connected to the second support 42 extends along the length direction of the side frame 411 corresponding to the second support 42. Weighing sensors 91 are respectively provided at the four corners of the rectangular frame.

[0064] The weighing equipment has been described in detail in the foregoing embodiments. The weighing equipment has all the beneficial effects of the anti-sway mechanism, and will not be repeated here.

[0065] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An anti-sway mechanism, characterized in that, It includes a pull rod (1) and an axial limiting structure (2); the pull rod (1) is used to pass horizontally through the connection hole (5) provided in the scale body (3) of the weighing equipment, and also through another connection hole (5) provided in the support frame (4) of the weighing equipment; the pull rod (1) is connected to the axial limiting structure (2) at any of the connection holes (5), and the axial limiting structure (2) is adjustable in axial position of the pull rod (1) and is used to abut against the end face of the connection hole (5) to limit the axial movement of the pull rod (1).

2. The anti-sway mechanism as described in claim 1, characterized in that, The pull rod (1) is connected to two axial limiting structures (2) at any of the connecting holes (5), and the two axial limiting structures (2) are respectively used to abut against the two end faces of the corresponding connecting holes (5).

3. The anti-sway mechanism as described in claim 1, characterized in that, It also includes a conical gasket (6) and a spherical gasket (7). The conical gasket (6) and the spherical gasket (7) are arranged between the end face of the axial limiting structure (2) and the corresponding connecting hole (5). The conical cavity of the conical gasket (6) matches the spherical surface of the spherical gasket (7).

4. The anti-sway mechanism as described in claim 1, characterized in that, The two connecting holes (5) connected to the pull rod (1) include a first connecting hole (51) and a second connecting hole (52). The first connecting hole (51) is larger in the vertical direction than the diameter of the pull rod (1). The pull rod (1) is configured to move relative to the first connecting hole (51) in the vertical direction so that the pull rod (1) can be horizontally inserted through the first connecting hole (51) and the second connecting hole (52).

5. The anti-sway mechanism as described in claim 4, characterized in that, The first connecting hole (51) has a U-shaped cross-section, and the opening of the U-shape faces upward; the second connecting hole (52) has a circular cross-section.

6. The anti-sway mechanism as described in claim 4, characterized in that, The scale body (3) includes a scale body (31) and a first support (32) located below the scale body (31). The first support (32) is detachably connected to the scale body (31) or integrally connected. The support frame (4) includes a support body (41) and a second support (42). The second support (42) is detachably connected to the support body (41) or integrally connected. The first support (32) is provided with the first connection hole (51), and the second support (42) is provided with the second connection hole (52).

7. The anti-sway mechanism as described in any one of claims 1 to 6, characterized in that, The number of the pull rods (1) is multiple; At least two of the multiple pull rods (1) are arranged at a preset angle; And / or, at least two of the plurality of tie rods (1) are spaced apart, and the axes of at least two of the tie rods (1) are parallel.

8. The anti-sway mechanism as described in any one of claims 1 to 6, characterized in that, The axial limiting structure (2) includes multiple nuts (21), which are coaxially arranged on the same side of the connecting hole (5) and threadedly connected to the pull rod (1).

9. A weighing device, characterized in that, It includes a scale body (3), a support frame (4), a weighing unit (9), and an anti-sway mechanism as described in any one of claims 1 to 8; the pull rod (1) of the anti-sway mechanism is horizontally inserted through a connection hole (5) provided in the scale body (3), and also through another connection hole (5) provided in the support frame (4).

10. The weighing device as described in claim 9, characterized in that, The scale body (3) includes a scale body (31) and a first support (32) located below the scale body (31). The support frame (4) includes a support body (41) and a second support (42). The first support (32) and the second support (42) are arranged in a one-to-one correspondence and are respectively provided with the connection hole (5). The support body (41) is a rectangular frame. The top of each side frame (411) of the rectangular frame is provided with the second support (42). The axial direction of the pull rod (1) connected to the second support (42) extends along the length direction of the side frame (411) corresponding to the second support (42). Weighing sensors (91) are respectively provided at the four corners of the rectangular frame.

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