Weighing module with horizontal limiting mechanism
By employing a parallel connection structure of the first and second horizontal connecting rods in the weighing module, the problem of high debugging difficulty in the prior art is solved, achieving simple installation and stable measurement accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- METTLER TOLEDO (CHANGZHOU) PRECISION INSTR CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-12
AI Technical Summary
Existing horizontal limit mechanisms are difficult to control for the appropriate position or clearance, making debugging difficult and affecting measurement accuracy.
It adopts a structure including a first horizontal connecting rod and a second horizontal connecting rod, which are connected by a connector to adjust its horizontal position. Simple installation and debugging are achieved by using a slotted hole and a tightening bolt.
The installation and debugging process has been simplified, ensuring the accuracy and stability of the weighing module. It is suitable for weighing under dynamic working conditions and improves measurement accuracy.
Smart Images

Figure CN224353914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weighing modules, and in particular to a weighing module with a horizontal limiting mechanism. Background Technology
[0002] Figure 1 This is a three-dimensional view of a horizontal limiting mechanism in the prior art. Figure 2 This is a front view of a horizontal limiting mechanism in the prior art. (Example:) Figure 1 and Figure 2 As shown, in the field of weighing modules, the existing horizontal limit mechanism is mostly composed of a standard spherical bearing 100, an intermediate connecting rod 200, and two tightening nuts 300.
[0003] The cylindrical front ends of the two spherical bearings 100 are threaded, with one side having a left-hand thread and the other a right-hand thread. During installation, first rotate the intermediate connecting rod 200 to adjust the spherical bearings 100 to a certain position, and then tighten the tightening nuts 300 on both sides to complete the installation.
[0004] However, the biggest problem with this existing structure is the difficulty and uncertainty of debugging.
[0005] In theory, after the horizontal limit mechanism is installed, there should be a certain amount of clearance or freedom of movement to ensure that it maintains a certain degree of mobility while limiting the horizontal position, preventing the entire weighing system from becoming too rigid and affecting measurement accuracy. However, it is currently difficult to determine the appropriate position or clearance for existing horizontal limit mechanisms in operation.
[0006] Furthermore, it's difficult to pinpoint the correct position for the intermediate link. When rotating the intermediate link, the joint bearings on both sides either retract towards the center simultaneously or expand outwards simultaneously. It's challenging to determine if the joint bearings are in the correct position.
[0007] Currently, the standard requirement is that the spherical bearing should be able to move slightly after tightening. However, if the spherical bearing can still move at this point, this slight movement will disappear after the nut is tightened. Therefore, it is often difficult for operators to properly rotate the intermediate connecting rod and tighten the nut.
[0008] In view of this, the applicant inventor designed a horizontal limiting mechanism for a weighing module in order to overcome the above-mentioned technical problems. Utility Model Content
[0009] The technical problem to be solved by this utility model is to overcome the shortcomings of existing horizontal limiting mechanisms, which are difficult to grasp the appropriate position or clearance and have high debugging difficulty, and to provide a weighing module with a horizontal limiting mechanism.
[0010] The present invention solves the above-mentioned technical problems through the following technical solution:
[0011] A weighing module with a horizontal limiting mechanism is characterized in that the weighing module includes a horizontal limiting mechanism, a top plate and a bottom plate. The horizontal limiting mechanism includes a first horizontal connecting rod and a second horizontal connecting rod. A first joint bearing is provided at one end of the first horizontal connecting rod and is connected to the top plate. A second joint bearing is provided at one end of the second horizontal connecting rod and is connected to the bottom plate.
[0012] The first horizontal link and the second horizontal link are tightly connected by at least one connector, and the horizontal position between the first horizontal link and the second horizontal link can be adjusted.
[0013] According to one embodiment of the present invention, the plane passing through the center of the first joint bearing ball and the plane passing through the center of the second joint bearing ball are on the same horizontal plane.
[0014] According to one embodiment of the present invention, at least one elongated first connecting hole is provided on the first horizontal connecting rod, and at least one elongated second connecting hole is provided on the second horizontal connecting rod. The first connecting hole and the second connecting hole are vertically aligned and are tightly connected by the connecting member.
[0015] According to one embodiment of the present invention, the frictional contact surface between the first horizontal connecting rod and the second horizontal connecting rod is kept on the same horizontal plane as the rod end tension of the first horizontal connecting rod and the rod end tension of the second horizontal connecting rod.
[0016] According to one embodiment of the present invention, the first connecting hole and the second connecting hole are waist-shaped holes.
[0017] According to one embodiment of the present invention, the connector includes a tightening bolt and a tightening nut, wherein the tightening bolt passes through the first connecting hole and the second connecting hole and is fixed by the tightening nut;
[0018] By adjusting the position of the connector within the waist-shaped hole, the horizontal position between the first horizontal connecting rod and the second horizontal connecting rod can be adjusted.
[0019] According to one embodiment of the present invention, the first horizontal connecting rod is provided with a first bending portion, and the second horizontal connecting rod is provided with a second bending portion, wherein the first horizontal connecting rod and the second horizontal connecting rod overlap vertically.
[0020] According to one embodiment of the present invention, the horizontal limiting mechanism further includes an intermediate connecting member, the first end of which is connected to the other end of the first horizontal connecting rod, and the second end of which is connected to the other end of the second horizontal connecting rod.
[0021] According to one embodiment of the present invention, the first end of the intermediate connector is provided with at least one elongated third connecting hole, and the other end of the first horizontal connecting rod is provided with at least one first adjusting hole. The third connecting hole is vertically aligned with the first adjusting hole and connected by the connector.
[0022] The second end of the intermediate connector is provided with at least one elongated fourth connecting hole, and the other end of the second horizontal connecting rod is provided with at least one second adjusting hole. The fourth connecting hole and the second adjusting hole are aligned vertically and connected by the connector.
[0023] According to one embodiment of the present invention, the intermediate connector has a groove between the first end and the second end, the third connecting hole and the fourth connecting hole pass through the intermediate connector vertically, and the other end of the first horizontal connecting rod and the other end of the second horizontal connecting rod are respectively inserted into the corresponding groove.
[0024] The positive and progressive effects of this utility model are as follows:
[0025] This utility model features a weighing module with a horizontal limiting mechanism. Its simple structure greatly reduces the complexity of installation and debugging. The horizontal position can be adjusted without screw rotation, and it can be directly tightened in the initial position, making it easy to achieve accurate installation. Attached Figure Description
[0026] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein:
[0027] Figure 1 This is a three-dimensional view of a horizontal limiting mechanism in the prior art.
[0028] Figure 2 This is a front view of a horizontal limiting mechanism in the prior art.
[0029] Figure 3 This is a structural schematic diagram of the weighing module with a horizontal limiting mechanism of this utility model.
[0030] Figure 4 This is the front view of the weighing module with a horizontal limiting mechanism of this utility model.
[0031] Figure 5This is a front view of the horizontal limiting mechanism in Embodiment 1 of the weighing module with horizontal limiting mechanism of this utility model.
[0032] Figure 6 This is a top view of the horizontal limiting mechanism in Embodiment 1 of the weighing module with horizontal limiting mechanism of this utility model.
[0033] Figure 7 This is a schematic diagram of the structure of the first horizontal connecting rod in Embodiment 1 of the weighing module with horizontal limiting mechanism of this utility model.
[0034] Figure 8 This is a perspective view of the horizontal limiting mechanism in Embodiment 2 of the weighing module with horizontal limiting mechanism of this utility model.
[0035] Figure 9 This is a longitudinal sectional view of the horizontal limiting mechanism in Embodiment 2 of the weighing module with horizontal limiting mechanism of this utility model.
[0036] Figure 10 This is a top view of the horizontal limiting mechanism in Embodiment 2 of the weighing module with horizontal limiting mechanism of this utility model.
[0037] [Attached image labels]
[0038] Standard spherical plain bearing 100
[0039] Intermediate connecting rod 200
[0040] Tighten nuts 300, 16
[0041] Horizontal limit mechanism 10
[0042] Top plate 20
[0043] Base plate 30
[0044] First horizontal link 11
[0045] Second horizontal link 12
[0046] First joint bearing 13
[0047] Second joint bearing 14
[0048] First connecting hole 111
[0049] Second connecting hole 121
[0050] Tighten bolts 15
[0051] Knurling 17
[0052] First bend 112
[0053] Second bend 122
[0054] The other end of the first horizontal connecting rod 113
[0055] The other end of the second horizontal connecting rod 123
[0056] Intermediate connector 40
[0057] Third connecting hole 41
[0058] First adjustment hole 114
[0059] Fourth connecting hole 42
[0060] Second adjustment hole 124
[0061] Groove 43
[0062] Frictional contact surface A
[0063] The tension B at the end of the first horizontal link
[0064] The tension C at the end of the second horizontal link Detailed Implementation
[0065] 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.
[0066] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the present invention will now be described in detail, examples of which are shown in the drawings. Wherever possible, the same reference numerals will be used in all the drawings to denote the same or similar parts.
[0067] Furthermore, although the terminology used in this invention is selected from commonly known and used terms, some terms mentioned in this specification may have been selected by the applicant in his or her judgment, and their detailed meanings are explained in the relevant sections of the description herein.
[0068] Furthermore, it is required that this utility model be understood not only through the actual terminology used, but also through the meaning implied by each term.
[0069] Example 1:
[0070] like Figures 3 to 6As shown, this utility model discloses a weighing module with a horizontal limiting mechanism, which includes a horizontal limiting mechanism 10, a top plate 20, and a bottom plate 30. The horizontal limiting mechanism 10 includes a first horizontal connecting rod 11 and a second horizontal connecting rod 12. A first joint bearing 13 is provided at one end of the first horizontal connecting rod 11, connecting the first joint bearing 13 to the top plate 20. A second joint bearing 14 is provided at one end of the second horizontal connecting rod 12, connecting the second joint bearing 14 to the bottom plate 30. The first horizontal connecting rod 11 and the second horizontal connecting rod 12 are tightly connected by at least one connecting member, and the distance between the first horizontal connecting rod 11 and the second horizontal connecting rod 12 can be adjusted in the horizontal position.
[0071] like Figure 7 As shown, the first horizontal connecting rod 11 and the second horizontal connecting rod 12 are structurally matched, and two identical first joint bearings 13 and second joint bearings 14 are located on the left and right sides, respectively. They are connected to the top plate 20 and the bottom plate 30 of the weighing module. After the first joint bearings 13 and 14 are connected to the weighing module, a relative position exists between them. By directly tightening them at this position using a constraint and clamping device, the installation of the horizontal limiting mechanism 10 can be completed. The initial relative position between the first joint bearings 13 and 14 provides initial clearance, which can provide the necessary clearance for slight movement after the entire assembly is completed.
[0072] See again Figure 5 and Figure 6 In this embodiment, preferably, at least one elongated first connecting hole 111 is provided on the first horizontal connecting rod 11. At least one elongated second connecting hole 121 is provided on the second horizontal connecting rod 12. When the first horizontal connecting rod 11 and the second horizontal connecting rod 12 are connected, the first connecting hole 111 and the second connecting hole 121 are aligned vertically and tightly connected by the connector.
[0073] Here, the connecting member can preferably include a tightening bolt 15 and a tightening nut 16. The tightening bolt 15 is inserted into the first connecting hole 111 and the second connecting hole 121 and fixed by the tightening nut 16. This facilitates the adjustment of the total length of the horizontal limiting mechanism and can very conveniently complete horizontal positioning and limiting.
[0074] Of course, the connecting member can also be other components or structures, as long as the first horizontal connecting rod 11 and the second horizontal connecting rod 12 can be tightened together. For example, hose clamps, clamps, etc. can all achieve the function of tightening together, and are all within the protection scope of this application.
[0075] Since the first connecting hole 111 and the second connecting hole 121 are elongated (for example, the first connecting hole 111 and the second connecting hole 121 are preferably oblong holes), the connection position of the nut 16 in the first connecting hole 111 and the second connecting hole 121 can be adjusted and tightened by pulling the first horizontal connecting rod 11 and the second horizontal connecting rod 12 at both ends.
[0076] This structure eliminates the need for traditional nut rotation for position adjustment. Instead, it directly uses the relative position between the first horizontal link 11 and the second horizontal link 12 for fastening and constraint, and facilitates horizontal position adjustment. For example, the horizontal position between the first horizontal link 11 and the second horizontal link 12 can be adjusted by adjusting the position of the connector (e.g., tightening the nut 16) within the first connecting hole 111 and the second connecting hole 121 (e.g., a slotted hole).
[0077] Specifically, in the horizontal limiting mechanism of the weighing module of this application, the plane passing through the center of the first joint bearing 13 and the plane passing through the center of the second joint bearing 14 are on the same horizontal plane.
[0078] For example, in this embodiment, a first bending portion 112 is provided on the first horizontal link 11, and a second bending portion 122 is provided on the second horizontal link 12, so that the first horizontal link 11 and the second horizontal link 12 overlap vertically.
[0079] As described above, the first horizontal link 11 and the second horizontal link 12 are not straight, but have a bending angle (e.g., having a first bend and a second bend). This structure can keep the center planes of the first joint bearings 13 located on the left and right sides on the same plane, and will not generate a vertical component force.
[0080] Combination Figure 4 As shown, in this embodiment, the first horizontal connecting rod 11 is provided with a first bending portion 112, and the second horizontal connecting rod 12 is provided with a second bending portion 122. The purpose is to ensure that the friction contact surface A between the first horizontal connecting rod 11 and the second horizontal connecting rod 12 is kept on the same horizontal plane as the rod end tension B of the first horizontal connecting rod 11 and the rod end tension C of the second horizontal connecting rod 12, thereby avoiding the generation of vertical forces that affect the metering performance.
[0081] Furthermore, a surface roughness enhancement process can be selectively added to the overlapping surfaces of the first horizontal connecting rod 11 and the second horizontal connecting rod 12, such as surface heat treatment or knurling 17 (e.g., ...). Figure 6 (as shown in the image) etc.
[0082] Of course, the above-mentioned first bending portion 112 and second bending portion 122 are only examples. The first horizontal connecting rod 11 and the second horizontal connecting rod 12 do not necessarily need to be bent. Any other form that can keep the center planes of the first joint bearing 13 and the second joint bearing 14 on the same horizontal plane is acceptable and is within the protection scope of this application.
[0083] Example 2:
[0084] like Figures 7 to 9 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, except that: in order to ensure that the center planes of the first joint bearing 13 and the second joint bearing 14 in the horizontal limiting mechanism of the weighing module of this application are on the same horizontal plane. In this embodiment, the horizontal limiting mechanism 10 may also include an intermediate connector 40, which connects the first end of the intermediate connector 40 to the other end 113 of the first horizontal connecting rod 11, and the second end of the intermediate connector 40 to the other end 123 of the second horizontal connecting rod 12.
[0085] Preferably, at least one elongated third connecting hole 41 (e.g., a waist-shaped hole) is provided at the first end of the intermediate connector 40, and at least one first adjusting hole 114 is provided at the other end of the first horizontal connecting rod 11. The third connecting hole 41 and the first adjusting hole 114 are aligned vertically and connected by the connector. At least one elongated fourth connecting hole 42 (e.g., a waist-shaped hole) is provided at the second end of the intermediate connector 40, and at least one second adjusting hole 124 is provided at the other end of the second horizontal connecting rod 12. The fourth connecting hole 42 and the second adjusting hole 124 are aligned vertically and connected by the connector.
[0086] More preferably, a groove 43 is provided between the first end and the second end of the intermediate connector 40, and the third connecting hole 41 and the fourth connecting hole 42 pass through the intermediate connector 40 vertically, so that the other end 113 of the first horizontal connecting rod 11 and the other end 123 of the second horizontal connecting rod 12 are respectively inserted into the corresponding groove 43.
[0087] Here, the connecting member can preferably include a tightening bolt 15 and a tightening nut 16. The tightening bolt 15 is inserted into the first connecting hole 111 and the second connecting hole 121 and fixed by the tightening nut 16. This facilitates the adjustment of the total length of the horizontal limiting mechanism and can very conveniently complete horizontal positioning and limiting.
[0088] Of course, the connecting member can also be other components or structures, as long as the first horizontal connecting rod 11 and the second horizontal connecting rod 12 can be tightened together. For example, hose clamps, clamps and other structures can achieve the function of tightening together, and all are within the protection scope of this application.
[0089] During installation, the other end 113 of the first horizontal connecting rod 11 and the other end 123 of the second horizontal connecting rod 12 are respectively inserted into the corresponding grooves 43. The third connecting hole 41 and the first adjusting hole 114 are aligned vertically, and the fourth connecting hole 42 and the second adjusting hole 124 are aligned vertically. The tightening bolts 15 pass through the third connecting hole 41 and the first adjusting hole 114, the fourth connecting hole 42 and the second adjusting hole 124 respectively, thereby realizing the connection between the intermediate connecting piece 40 and the first horizontal connecting rod 11 and the second horizontal connecting rod 12.
[0090] As described above, in the structure of this embodiment, there must be no gap between the connector (e.g., tightening bolt 15) and the first adjustment hole 114 and the second adjustment hole 124 to ensure that only a small displacement of the clearance is allowed during operation. There must be a gap between the connector and the third connection hole 41 and the fourth connection hole 42 (e.g., waist-shaped hole) of the intermediate connector 40 to facilitate simple positioning during initial installation.
[0091] Of course, the aforementioned intermediate connector 40 is merely an example. Any other form that can keep the center planes of the first joint bearing 13 and the second joint bearing 14 on the same horizontal plane is also acceptable and is within the scope of protection of this application.
[0092] In summary, the weighing module with a horizontal limiting mechanism of this invention has a simple structure, greatly reducing the complexity of installation and debugging. Horizontal position adjustment can be performed without threaded rotation; it can be directly tightened from the initial position, easily achieving accurate installation. The horizontal limiting mechanism can ensure the stability of the weighing module under dynamic operating conditions. The horizontal limiting mechanism can constrain the radial displacement of the weighing module, thereby improving the measurement accuracy under radial deformation such as thermal expansion and contraction.
[0093] For those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application and therefore remain within the spirit and scope of the exemplary embodiments of this application.
[0094] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.
[0095] Similarly, it should be noted that, in order to simplify the description of the embodiments disclosed in this application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of this application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of this application requires more features than those mentioned in the claims. In fact, the embodiments have fewer features than all the features of the single embodiments disclosed above.
[0096] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A weighing module with a horizontal limiting mechanism, characterized in that, The weighing module includes a horizontal limiting mechanism, a top plate, and a bottom plate. The horizontal limiting mechanism includes a first horizontal connecting rod and a second horizontal connecting rod. A first joint bearing is provided at one end of the first horizontal connecting rod and is connected to the top plate. A second joint bearing is provided at one end of the second horizontal connecting rod and is connected to the bottom plate. The first horizontal link and the second horizontal link are tightly connected by at least one connector, and the horizontal position between the first horizontal link and the second horizontal link can be adjusted.
2. The weighing module with a horizontal limiting mechanism as described in claim 1, characterized in that, The plane passing through the center of the first spherical bearing and the plane passing through the center of the second spherical bearing are on the same horizontal plane.
3. The weighing module with a horizontal limiting mechanism as described in claim 1, characterized in that, The first horizontal connecting rod has at least one elongated first connecting hole, and the second horizontal connecting rod has at least one elongated second connecting hole. The first connecting hole and the second connecting hole are vertically aligned and are tightly connected by the connecting member.
4. The weighing module with a horizontal limiting mechanism as described in claim 3, characterized in that, The frictional contact surface between the first horizontal link and the second horizontal link is kept on the same horizontal plane as the end tension of the first horizontal link and the end tension of the second horizontal link.
5. The weighing module with a horizontal limiting mechanism as described in claim 3, characterized in that, The first connecting hole and the second connecting hole are oblong holes.
6. The weighing module with a horizontal limiting mechanism as described in claim 5, characterized in that, The connector includes a tightening bolt and a tightening nut, wherein the tightening bolt passes through the first connecting hole and the second connecting hole and is fixed by the tightening nut; By adjusting the position of the connector within the waist-shaped hole, the horizontal position between the first horizontal connecting rod and the second horizontal connecting rod can be adjusted.
7. The weighing module with a horizontal limiting mechanism as described in claim 3, characterized in that, The first horizontal link has a first bend, and the second horizontal link has a second bend, with the first horizontal link and the second horizontal link overlapping vertically.
8. The weighing module with a horizontal limiting mechanism as described in claim 1, characterized in that, The horizontal limiting mechanism further includes an intermediate connecting member, the first end of which is connected to the other end of the first horizontal connecting rod, and the second end of which is connected to the other end of the second horizontal connecting rod.
9. The weighing module with a horizontal limiting mechanism as described in claim 8, characterized in that, The first end of the intermediate connector is provided with at least one elongated third connecting hole, and the other end of the first horizontal connecting rod is provided with at least one first adjusting hole. The third connecting hole is aligned vertically with the first adjusting hole and is connected through the connector. The second end of the intermediate connector is provided with at least one elongated fourth connecting hole, and the other end of the second horizontal connecting rod is provided with at least one second adjusting hole. The fourth connecting hole and the second adjusting hole are aligned vertically and connected by the connector.
10. The weighing module with a horizontal limiting mechanism as described in claim 9, characterized in that, The intermediate connector has a groove between its first and second ends, and the third and fourth connecting holes pass through the intermediate connector vertically. The other ends of the first and second horizontal connecting rods are respectively inserted into the corresponding grooves.