Weighing devices and racking structures

Abstract

This utility model discloses a weighing device and a shelf structure. The weighing device includes: a base; at least one sensor assembly mounted on the base; at least one connecting mechanism, each connecting mechanism being connected to one of the sensor assemblies; and a weighing pan disposed above the base. The weighing pan includes at least one connecting portion, which is movably connected to the connecting mechanism. The connecting portion has a connecting hole for insertion into the connecting mechanism, and a gap exists between the connecting hole and the connecting mechanism along the radial direction of the connecting hole. By providing a gap between the connecting hole and the connecting mechanism along the radial direction (i.e., laterally) of the connecting hole, this utility model's weighing device and shelf structure avoids the force exerted by the weighing pan on the connecting mechanism in the lateral direction due to weighing pan deformation. This ensures that the connecting mechanism applies only vertical force to the sensor, thereby guaranteeing the measurement accuracy of the weighing device.

Description

Technical Field

[0001] This utility model belongs to the field of material weighing technology, specifically relating to a weighing device and a shelf structure. Background Technology

[0002] A typical scale structure generally includes a base, a weighing pan, and a sensor connecting the base and the weighing pan. The weighing pan is connected to the sensor via a connector. During actual weighing, the weighing pan may deform when carrying an object, causing the sensor to receive not only the effective load in the vertical direction but also interference forces in the horizontal direction. This results in a difference between the sensor's output value and the actual weight of the object, affecting measurement accuracy.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a weighing device and a shelf structure that can reduce the interference force of the sensor in the horizontal direction, thereby improving the measurement accuracy of the weighing device.

[0005] To achieve the above objectives, a specific embodiment of this utility model provides the following technical solution: a weighing device, comprising:

[0006] Base;

[0007] At least one sensor assembly is mounted on the base;

[0008] At least one connecting mechanism, each connecting mechanism being connected to one of the sensor assemblies;

[0009] A weighing pan is disposed above a base. The weighing pan includes at least one connecting part, which is movably connected to a connecting mechanism. The connecting part has a connecting hole for insertion into the connecting mechanism. A gap exists between the connecting hole and the connecting mechanism along the radial direction of the connecting hole.

[0010] In one or more embodiments of the present invention, the connecting mechanism includes an elastic seat and a first connecting member mounted on the elastic seat. The first connecting member is inserted into a connecting hole, and a gap exists between the connecting hole and the first connecting member along the radial direction of the connecting hole.

[0011] In one or more embodiments of this utility model, the elastic seat is provided with a first mounting hole, and a portion of the first connector is located in the first mounting hole and is interference-fitted with the first mounting hole.

[0012] In one or more embodiments of the present invention, the connecting mechanism further includes a limiting member, the limiting member being threadedly connected to the first connecting member, the connecting portion being disposed between the limiting member and the elastic seat, and a gap being formed between the limiting member and the connecting portion along the axial direction of the connecting hole.

[0013] In one or more embodiments of the present invention, at least a portion of the orthographic projection of the connecting hole in the first direction lies within the orthographic projection of the limiting member in the first direction, wherein the first direction is the axial direction of the connecting hole.

[0014] In one or more embodiments of the present invention, the weighing pan includes a body portion connected to a connecting portion, the body portion having a clearance hole for a limiting member and a first connecting member to pass through, and the connecting portion being located below the clearance hole.

[0015] In one or more embodiments of the present invention, the connecting mechanism further includes a second connecting member, a portion of which is connected to the elastic seat and the other portion of which is connected to the sensor assembly.

[0016] In one or more embodiments of this utility model, the connecting portion can abut against the top of the elastic seat.

[0017] A specific embodiment of this utility model also provides a shelf structure, including a shelf body, the shelf body including a frame and a plurality of shelves spaced apart on the frame, and at least one weighing device as described above is installed on each shelf.

[0018] Compared with the prior art, the weighing device and shelf structure of this utility model, by setting a gap between the connecting hole and the connecting mechanism along the radial direction (i.e., the transverse direction) of the connecting hole, avoids the force exerted by the weighing pan on the connecting mechanism in the transverse direction due to the deformation of the weighing pan, so that the connecting mechanism applies the force to the sensor only in the vertical direction as much as possible, thus ensuring the measurement accuracy of the weighing device. Attached Figure Description

[0019] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the weighing device in one embodiment of the present invention;

[0021] Figure 2 This is a partial cross-sectional view of the weighing device in one embodiment of the present invention;

[0022] Figure 3 for Figure 2 The method diagram at point A in the middle;

[0023] Figure 4 This is a bottom view of the weighing device in one embodiment of the present invention.

[0024] Explanation of key figure labels:

[0025] 1. Base; 11. Plug-in interface; 2. Weighing pan; 21. Main body; 211. Clearance hole; 22. Connecting part; 221. Connecting hole; 3. Sensor assembly; 31. Sensor body; 32. Mounting plate; 4. Connecting mechanism; 41. Elastic seat; 411. First mounting hole; 412. Second mounting hole; 42. First connector; 43. Second connector; 44. Limiting member; 45. Tightening nut; 46. First washer; 47. Second washer; 5. Support foot; a. Gap; b. Gap. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this utility model, 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 embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0027] like Figures 1 to 3 As shown, the weighing device in one embodiment of the present invention includes a base 1, a weighing pan 2, at least one sensor assembly 3, and at least one connecting mechanism 4; the fixed end of the sensor assembly 3 is mounted on the base 1; each connecting mechanism 4 is connected to the movable end of a sensor assembly 3; the weighing pan 2 is disposed above the sensor assembly 3, and the weighing pan 2 includes at least one connecting part 22, which is movably connected to the connecting mechanism 4. The connecting part 22 has a connecting hole 221 for insertion into the connecting mechanism 4, and there is a gap a between the connecting hole 221 and the connecting mechanism 4 along the radial direction of the connecting hole 221.

[0028] It is understandable that during the actual weighing process of the weighing device, the radial direction of the connecting hole 221 is the transverse direction, also known as the horizontal direction. If the weighing pan 2 deforms when carrying an object, the inner wall of the connecting hole 221 will move in the horizontal direction. In this utility model, the gap a between the connecting hole 221 and the connecting mechanism 4 in the transverse direction provides a clearance space for the movement of the inner wall of the connecting hole 221, reducing the possibility of the inner wall of the connecting hole 221 contacting the connecting mechanism 4 in the transverse direction and applying a transverse force to the connecting mechanism 4. This allows the connecting mechanism 4 to apply a vertical force to the sensor as much as possible, ensuring the measurement accuracy of the weighing device.

[0029] The cross-section of the connecting part 22 is C-shaped, and the bottom of the connecting part 22 abuts against the top of the elastic seat 41, so that the weighing pan 2 is connected to the elastic seat 41.

[0030] like Figure 3 As shown, the connecting mechanism 4 includes an elastic seat 41 and a first connecting member 42 mounted on the elastic seat 41. The first connecting member 42 is inserted into the connecting hole 221. Along the radial direction of the connecting hole 221, there is a gap 'a' between the connecting hole 221 and the first connecting member 42, that is, a lateral gap 'a' between the connecting hole 221 and the connecting mechanism 4. The vertical connecting portion 22 abuts against the elastic seat 41. The elastic seat 41 uses its own elasticity to act as a buffer, which can protect the sensor. Specifically, the elastic seat 41 can be made of rubber or other elastic materials.

[0031] Furthermore, the elastic seat 41 is provided with a first mounting hole 411, and a portion of the first connecting member 42 is located within the first mounting hole 411 and is interference-fitted with the first mounting hole 411. This arrangement can stably connect the elastic seat 41 and the first connecting member 42. In addition, the elastic seat 41 itself is elastic, and the first mounting hole 411 provided thereon can improve the overall cushioning performance of the elastic seat 41.

[0032] Furthermore, the connecting mechanism 4 also includes a limiting member 44, which is threadedly connected to the first connecting member 42. The connecting part 22 is located between the limiting member 44 and the elastic seat 41, and there is a gap b between the limiting member 44 and the connecting part 22 along the axial direction of the connecting hole 221. During the weighing process of the weighing device, the axial direction of the connecting hole 221 is vertical. The cooperation between the limiting member 44 and the elastic seat 41 plays a role in clamping and restricting the connecting part 22. The gap b between the limiting member 44 and the connecting part 22 prevents the limiting member 44 and the elastic seat 41 from clamping the connecting part 22, thereby giving the connecting part 22 room to move in the vertical direction.

[0033] When the weighing pan 2 deforms, the vertical gap b and the lateral gap a between the connecting part 22 and the connecting mechanism 4 reduce the possibility of the connecting part 22 applying a lateral interference force to the connecting mechanism 4.

[0034] Specifically, the first connector 42 may include a shoulder and a rod. One end of the rod is connected to the middle of the shoulder. The shoulder is located in the first mounting hole 411 and is interference-fitted with the first mounting hole 411. The rod is provided with an external thread. The limiting member 44 is a nut. The threaded connection between the first connector 42 and the limiting member 44 is realized through the threaded connection between the rod and the nut.

[0035] Preferably, at least a portion of the orthographic projection of the connecting hole 221 in the first direction lies within the orthographic projection of the limiting member 44 in the first direction, where the first direction is the axial direction of the connecting hole 221. That is, the diameter of the connecting hole 221 is smaller than the radial diameter of the limiting member 44. This arrangement ensures that the connecting part 22 is always located between the limiting member 44 and the elastic seat 41, preventing the connecting hole 221 from disengaging from the first connecting member 42 through the limiting member 44.

[0036] Furthermore, the weighing pan 2 includes a body portion 21 connected to the connecting portion 22. The body portion 21 is provided with a clearance hole 211 for the limiting member 44 and the first connecting member 42 to pass through. The connecting portion 22 is located below the clearance hole 211. The clearance hole 211 serves to facilitate the assembly of the weighing pan 2 and the connecting mechanism 4.

[0037] like Figure 2 As shown, the connecting mechanism 4 also includes a second connecting member 43, one part of which is connected to the elastic seat 41 and the other part is connected to the sensor assembly 3.

[0038] Specifically, the sensor assembly 3 may include a sensor body 31 and a mounting plate 32, with the sensor body 31 fixedly connected to the base 1 via the mounting plate 32. The sensor body 31 and mounting plate 32 can be mounted on the base 1 using screws or other components. The sensor body 31 has a threaded hole, and the second connecting member 43 also includes a shoulder and a rod. The rod has external threads and is threadedly connected to the threaded hole. The elastic seat 41 has a second mounting hole 412, and the shoulder is located within and interference-fitted with the second mounting hole 412.

[0039] Furthermore, a tightening nut 45 is threaded onto the rod of the second connector 43. The tightening nut 45 is located between the sensor body 31 and the elastic seat 41, which serves to prevent the second connector 43 and the sensor body 31 from loosening.

[0040] Furthermore, a first washer 46 is clamped between the connecting part 22 and the elastic seat 41, and a second washer 47 is clamped between the tightening nut 45 and the sensor body 31. The first washer 46 and the second washer 47 are for the purpose of resisting impact. Both the first washer 46 and the second washer 47 can evenly distribute the force on the elastic seat 41, avoid damage to the elastic seat 41, and extend the service life of the elastic seat 41.

[0041] like Figure 1 As shown, in this embodiment, four sensor assemblies 3 are installed at intervals between the base 1 and the weighing pan 2. The use of four sensor assemblies 3 can ensure measurement accuracy.

[0042] like Figure 4 As shown, the base 1 has four bottom corners with plug interfaces 11 for connecting to the shelf body. The plug interfaces 11 can be adapted to some shelf bodies on the market, so as to facilitate the installation of the weighing structure of this utility model on the existing shelf body.

[0043] The bottom of the base 1 can also be equipped with multiple support feet, so that the weighing device of this utility model can be used independently (without being installed on the shelf).

[0044] The base 1 of the weighing device of this utility model can also be equipped with an electrically connected control mechanism and a display. The sensor assembly 3 is electrically connected to the control mechanism. The control mechanism will receive the test value transmitted by the sensor assembly 3 and transmit it to the display, so that the user can intuitively obtain the weight data.

[0045] In addition, the control mechanism can also be connected to the host computer via wired or wireless connection to transmit the test weight data to the host computer, so that the host computer can record and monitor it in a unified manner.

[0046] A specific embodiment of this utility model also provides a shelf structure, including a shelf body, the shelf body including a frame and a plurality of shelves spaced apart on the frame, and at least one weighing device is installed on each shelf.

[0047] Understandably, existing shelving structures primarily use scales or weighing devices installed at the bottom of the shelving unit to measure the weight of all materials on the entire shelving unit, but they cannot measure the weight changes of items on each shelf. Therefore, installing at least one weighing device on each shelf is necessary to measure the weight changes of items on each shelf.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weighing device, characterized in that include: Base (1); At least one sensor assembly (3) is mounted on the base (1); At least one connecting mechanism (4), each connecting mechanism (4) being connected to one of the sensor assemblies (3); A weighing pan (2) is disposed above a base (1). The weighing pan (2) includes at least one connecting part (22). The connecting part (22) is movably connected to a connecting mechanism (4). The connecting part (22) has a connecting hole (221) for insertion into the connecting mechanism (4). Along the radial direction of the connecting hole (221), there is a gap (a) between the connecting hole (221) and the connecting mechanism (4).

2. Weighing apparatus according to claim 1, characterized in that The connecting mechanism (4) includes an elastic seat (41) and a first connector (42) mounted on the elastic seat (41). The first connector (42) is inserted into a connecting hole (221). A gap (a) is formed between the connecting hole (221) and the first connector (42) along the radial direction of the connecting hole (221).

3. Weighing apparatus according to claim 2, characterized in that The elastic seat (41) is provided with a first mounting hole (411), and a portion of the first connector (42) is located in the first mounting hole (411) and is press-fitted with the first mounting hole (411).

4. Weighing apparatus according to claim 2, characterized in that The connecting mechanism (4) further includes a limiting member (44), which is threadedly connected to the first connecting member (42). The connecting part (22) is located between the limiting member (44) and the elastic seat (41) along the axial direction of the connecting hole (221). There is a gap (b) between the limiting member (44) and the connecting part (22).

5. Weighing apparatus according to claim 4, characterized in that At least a portion of the orthographic projection of the connecting hole (221) in the first direction lies within the orthographic projection of the limiting member (44) in the first direction, where the first direction is the axial direction of the connecting hole (221).

6. Weighing apparatus according to claim 4, characterized in that The weighing pan (2) includes a body part (21) connected to the connecting part (22). The body part (21) is provided with a clearance hole (211) for the limiting member (44) and the first connecting member (42) to pass through. The connecting part (22) is located below the clearance hole (211).

7. Weighing apparatus according to claim 2, characterized in that The first gasket (46) is held between the elastic seat (41) and the connecting part (22).

8. The weighing device according to claim 2, characterized in that, The connecting mechanism (4) further includes a second connector (43), one part of which is connected to the elastic seat (41) and the other part is connected to the sensor assembly (3).

9. The weighing apparatus of claim 1, wherein, The connecting part (22) can abut against the top of the elastic seat (41).

10. A shelving structure, characterized by The shelf body includes a frame and a plurality of shelves spaced apart on the frame, and each shelf is equipped with at least one weighing device as described in any one of claims 1 to 9.

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