Weighing sensor connector and weighing system including the same

Abstract

The present invention provides a load cell connector and a weighing system including the same. The load cell connector includes a force transmission component and a scallop. A scallop mounting hole is provided on the load cell loading surface. The force transmission component is installed in the scallop mounting hole. The upper end surface of the force transmission component is aligned with the contact surface of the scallop mounting hole. The scallop is installed in the scallop mounting hole so that the top of the scallop abuts the force transmission component. By adding a force transmission positioning mechanism, the present invention can improve the transmission of force to the load cell loading surface and reduce the variation of the force loading point, thereby improving the performance of the load cell and, in turn, the performance of a multi-sensor weighing system.

Description

Technical Field

[0001] The present invention relates to the field of weighing sensors, and in particular to a weighing sensor connector and a weighing system comprising the same. Background Art

[0002] In the prior art, a multi-load sensor weighing system usually has multiple load cells. The weighing mechanical structure usually causes horizontal internal stress to form between the load cells, which affects the weighing performance of the load cells.

[0003] There is usually a movable connection component between the weighing sensor and the weighing mechanical structure, which is used to release and reduce the stress in the mechanical structure, thereby reducing its impact on the weighing performance of the weighing sensor.

[0004] Figure 1 This is a schematic diagram of an exploded view of a weighing sensor in the prior art. Figure 2 This is a schematic diagram of the installation structure of a weighing sensor in the prior art.

[0005] like Figure 1 and Figure 2 As shown, there is a stalk movable connector and a beam-type weighing sensor coordinated with the stalk movable connector. The stalk 10 is inserted into the stalk mounting hole 21 of the beam-type weighing sensor 20. One end 11 of the stalk 10 contacts the loading surface of the weighing sensor, so that the weighing force is loaded to the weighing sensor through the stalk, and the horizontal force on the weighing sensor is released and reduced by the shaking of the stalk 10, thereby ensuring the weighing performance of the multi-sensor system.

[0006] Since the shaking of scallops requires a certain amount of movable space in the scallop mounting hole of the weighing sensor, the existence of this movable space causes the loading position between the top of the scallop and the loading surface of the weighing sensor to change. This change in loading position causes the weighing performance of the weighing sensor to decrease, thereby affecting the weighing performance of the multi-sensor weighing system. This situation has a more obvious impact on weighing systems with high requirements for weighing performance.

[0007] In view of this, those skilled in the art have designed a weighing sensor connector in order to overcome the above technical problems. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the defects in the prior art that the scallop connection structure of the weighing sensor easily leads to a decrease in weighing performance and affects the weighing system, and to provide a weighing sensor connector and a weighing system including the same.

[0009] The present invention solves the above technical problems through the following technical solutions:

[0010] The present invention discloses a weighing sensor connecting piece, which is installed on the loading surface of the weighing sensor. The characteristic of the weighing sensor connecting piece is that the weighing sensor connecting piece includes a force transmission component and a scallop, a scallop mounting hole is provided on the loading surface of the weighing sensor, the force transmission component is installed in the scallop mounting hole, the upper end surface of the force transmission component is consistent with the contact surface of the scallop mounting hole, and the scallop is installed in the scallop mounting hole so that the top end of the scallop is against the force transmission component.

[0011] According to one embodiment of the present invention, the load cell connector further comprises a force transmission auxiliary component, wherein an inner ring of the force transmission auxiliary component is provided with a through hole, and the force transmission component is installed in the through hole, so that the relative position between the force transmission component and the loading surface of the load cell remains fixed during the loading process;

[0012] The force transmission auxiliary component is installed in the scallop installation hole of the loading surface of the weighing sensor, so that the outer ring of the force transmission auxiliary component is connected to the inner wall surface of the scallop installation hole.

[0013] According to one embodiment of the present invention, the weighing sensor connecting member further includes a positioning member, which is installed at the bottom end of the scallop and fixed to the lower end surface of the loading surface of the weighing sensor.

[0014] According to one embodiment of the present invention, the force transmission auxiliary component includes an annular sheet-shaped main body, a plurality of first connecting plates arranged at intervals from each other, and a plurality of second connecting plates arranged at intervals from each other, the first connecting plates protruding upward along the outer ring edge of the annular sheet-shaped main body, the second connecting plates protruding downward along the outer ring edge of the annular sheet-shaped main body, and adjacent first connecting plates and second connecting plates are spaced apart up and down.

[0015] According to one embodiment of the present invention, the first connecting piece and the second connecting piece are connected to the inner wall surface of the scallop mounting hole.

[0016] According to one embodiment of the present invention, the through hole is opened on the annular sheet-shaped body to form the inner ring of the force transmission auxiliary component.

[0017] According to one embodiment of the present invention, the force transmission auxiliary component also includes a plurality of third connecting plates arranged at intervals from each other and a plurality of fourth connecting plates arranged at intervals from each other, the third connecting plates protruding upward along the inner ring edge of the annular sheet-shaped body, the fourth connecting plates protruding downward along the inner ring edge of the annular sheet-shaped body, and adjacent third connecting plates and fourth connecting plates are spaced apart from each other.

[0018] According to one embodiment of the present invention, the force transmission component is a cylinder, the upper end surface of the cylinder is an outwardly convex spherical surface, the lower end surface of the cylinder is a plane, and the top surface of the scallop is an upwardly convex spherical surface.

[0019] According to one embodiment of the present invention, the force transmission component is a cylinder, and the upper end surface and the lower end surface of the cylinder are both convex spherical surfaces;

[0020] The top surface of the scallop is set as an inverted concave spherical surface, the radius of the concave spherical surface is larger than the spherical radius of the lower end surface of the force transmission component, and the spherical surface of the lower end surface of the force transmission component is installed in the concave spherical surface.

[0021] According to one embodiment of the present invention, the shoulder at the top of the scallop is provided with an arc, a chamfer or a neck.

[0022] According to one embodiment of the present invention, a circle of bosses is provided at the bottom end of the scallop, the bosses protrude outward along the outer surface of the scallop, and a circle of sealing grooves is provided on the bosses, and a sealing ring is provided in the sealing grooves.

[0023] The present invention further provides a weighing system, which is characterized in that the weighing system includes the weighing sensor connecting member as described above.

[0024] The positive progress effect of the present invention is:

[0025] The weighing sensor connecting piece and the weighing system including the same, based on the existing weighing sensor stalk mounting hole and stalk mechanism, reduce the influence of stalk movement on weighing performance through structural changes, which helps to improve the weighing performance of the existing weighing system using the connecting structure.

[0026] The load cell connector can improve the transmission of force to the load cell loading surface by adding a force transmission positioning mechanism, reduce the change of the force loading position point, thereby improving the performance of the load cell and further improving the performance of the multi-sensor weighing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which like reference numerals represent like features throughout, wherein:

[0028] Figure 1 This is a schematic diagram of an exploded view of a weighing sensor in the prior art.

[0029] Figure 2 This is a schematic diagram of the installation structure of a weighing sensor in the prior art.

[0030] Figure 3 This is an exploded schematic diagram of Example 1 of the weighing sensor connecting piece of the present invention.

[0031] Figure 4 This is a schematic diagram of the installation structure of Example 1 of the weighing sensor connecting piece of the present invention.

[0032] Figure 5 This is an exploded schematic diagram of the second embodiment of the weighing sensor connecting piece of the present invention.

[0033] Figure 6 This is a schematic diagram of the installation structure of the second embodiment of the weighing sensor connecting piece of the present invention.

[0034] Figure 7 This is a structural diagram of the force transmission auxiliary component in the second embodiment of the weighing sensor connecting piece of the present invention.

[0035] Figure 8 This is a schematic structural diagram of the force transmission component in the second embodiment of the weighing sensor connector of the present invention.

[0036] Figure 9 This is a structural diagram of scallops in Example 2 of the weighing sensor connecting piece of the present invention.

[0037] Reference numerals

[0038] Dried scallops 10, 60

[0039] Beam type load cell 20

[0040] Scallop mounting holes 21 and 31

[0041] One end of scallop 11

[0042] Load cell loading surface 30

[0043] Force transmission auxiliary component 40

[0044] Force transmission component 50

[0045] Positioning piece 70

[0046] Through hole 41

[0047] Annular sheet body 42

[0048] First connecting piece 43

[0049] Second connecting piece 44

[0050] The third connecting piece 45

[0051] Fourth connecting piece 46

[0052] The upper end surface 51 of the cylinder

[0053] The lower end surface 52 of the cylinder

[0054] Concave spherical surface 61

[0055] Arc or chamfer or necking 62

[0056] Boss 63

[0057] Sealing groove 631

[0058] Mounting hole 71 DETAILED DESCRIPTION

[0059] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0060] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0061] Furthermore, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the present specification may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description herein.

[0062] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings lying behind each term.

[0063] Example 1:

[0064] Figure 3 This is an exploded schematic diagram of Example 1 of the weighing sensor connecting piece of the present invention. Figure 4 This is a schematic diagram of the installation structure of Example 1 of the weighing sensor connecting piece of the present invention. Figure 5 This is an exploded schematic diagram of the second embodiment of the weighing sensor connecting piece of the present invention.

[0065] like Figures 3 and 4 As shown, the present invention discloses a load cell connector that is mounted on a load cell loading surface 30. The load cell connector includes a force transmission component 50 and a scallop 60. A scallop mounting hole 31 is provided on the load cell loading surface 30. The force transmission component 50 is mounted in the scallop mounting hole 31, with the upper end surface of the force transmission component 50 aligned with the contact surface of the scallop mounting hole 31. The scallop 60 is mounted in the scallop mounting hole 31 so that the top end of the scallop 31 abuts against the force transmission component 50.

[0066] Preferably, if Figure 3As shown, the force transmission component 50 is a cylinder, the upper end surface 51 of the cylinder is a convex spherical surface, the lower end surface 52 of the cylinder is a flat surface, and the top end surface 61 of the scallop 60 is an upwardly convex spherical surface 61. The upper end surface 51 of the cylinder is connected to the loading surface of the load cell, and the top end surface 61 of the scallop 60 abuts the lower end surface 52 of the cylinder.

[0067] In addition, the weighing sensor connecting member may further include a positioning member (not shown in the figure), which is installed at the bottom end of the scallop 60 and fixed to the lower end surface of the weighing sensor loading surface 30.

[0068] Example 2:

[0069] Figure 6 This is a schematic diagram of the installation structure of the second embodiment of the weighing sensor connecting piece of the present invention. Figure 7 This is a structural diagram of the force transmission auxiliary component in the second embodiment of the weighing sensor connecting piece of the present invention. Figure 8 This is a schematic structural diagram of the force transmission component in the second embodiment of the weighing sensor connector of the present invention. Figure 9 This is a structural diagram of scallops in Example 2 of the weighing sensor connecting piece of the present invention.

[0070] like Figure 5 and Figure 6 As shown, the present invention discloses a load cell connector, which is mounted on the load cell loading surface 30. The load cell connector includes a force transmission auxiliary component 40, a force transmission component 50, and a scallop 60. The force transmission auxiliary component 40 is mounted within the scallop mounting hole 31 of the load cell loading surface 30, such that the outer ring of the force transmission auxiliary component 40 is connected to the inner wall of the scallop mounting hole 31. The inner ring of the force transmission auxiliary component 40 defines a through hole 41, and the force transmission component 50 is mounted within the through hole 41, so that the relative position of the force transmission component 50 and the load cell loading surface 30 remains fixed during the loading process. The scallop 60 is mounted within the scallop mounting hole 31, so that the top of the scallop 60 abuts against the force transmission component 50.

[0071] The weighing sensor connecting member may further include a positioning member 70 , which is mounted on the bottom end of the scallop 60 and fixed to the lower end surface of the weighing sensor loading surface 30 .

[0072] Preferably, if Figure 7As shown, the force transmission auxiliary component 40 preferably includes an annular sheet-shaped body 42, a plurality of spaced-apart first connecting pieces 43, and a plurality of spaced-apart second connecting pieces 44. The first connecting pieces 43 protrude upward along the outer edge of the annular sheet-shaped body 42, while the second connecting pieces 44 protrude downward along the outer edge of the annular sheet-shaped body 42. Adjacent first connecting pieces 43 and second connecting pieces 44 are spaced apart vertically. The first connecting pieces 43 and second connecting pieces 44 are connected to the inner wall of the scallop mounting hole 31. A through hole 41 is provided in the annular sheet-shaped body 42, forming the inner ring of the force transmission auxiliary component 40.

[0073] Further preferably, the force transmission auxiliary component 40 can also include a plurality of third connecting plates 45 spaced apart from each other and a plurality of fourth connecting plates 46 spaced apart from each other, wherein the third connecting plates 45 protrude upward along the inner ring edge of the annular sheet-shaped body 42, and the fourth connecting plates 46 protrude downward along the inner ring edge of the annular sheet-shaped body 42, and adjacent third connecting plates 45 and fourth connecting plates 46 are spaced apart from each other.

[0074] In this embodiment, the auxiliary force transmission component 40 is preferably a ring-shaped structure. The inner ring of this structure is connected to the force transmission component 50, constraining the position and state of the force transmission component 50 (primarily the spherical column). The outer ring is connected to the inner ring of the stalk mounting hole 31 of the load cell, defining the relative position and state of the auxiliary force transmission component 40 itself and the stalk mounting hole 31 of the load cell. In particular, the connection between the auxiliary force transmission component 40 and the inner ring of the stalk mounting hole 31 of the load cell has a certain thickness to prevent it from tilting.

[0075] Of course, in the weighing sensor connector described in the present invention, the form of the force transmission auxiliary component 40 is not unique. The second embodiment here is only an example of a preferred solution and does not limit the specific shape of the force transmission auxiliary component 40. As long as the relative position of the force transmission component 50 and the sensor can remain unchanged during the loading process, all those that meet the above requirements are within the scope of protection of the present invention.

[0076] Preferably, if Figure 8 As shown, the force transmission component 50 is a cylinder, and the upper end surface 51 and the lower end surface 52 of the cylinder are both convex spherical surfaces. The force transmission component 50 is embedded in the force transmission auxiliary component 40, and is a component that transmits the loading force transmitted by the scallop to the loading surface 30 of the weighing sensor. By using a smaller contact area with the loading surface of the weighing sensor, the force transmission position is further narrowed within the original transmission position distribution range. Here, the upper end surface 51 and the lower end surface 52 of the force transmission component 50 are both configured as convex spherical structures. The upper end surface 51 of the force transmission component 50 is connected to the loading surface of the weighing sensor, and the lower end surface 52 of the force transmission component 50 is connected to the top of the scallop.

[0077] Preferably, if Figure 9 As shown, the top of the scallop 60 is provided with an inverted concave spherical surface 61. The radius of the concave spherical surface 61 is greater than the radius of the spherical surface 51 at the lower end of the force transmission component 50. The spherical surface 51 at the lower end of the force transmission component 50 is mounted within the concave spherical surface 61. The shoulder at the top of the scallop 60 is provided with an arc, chamfer, or neck 62. The bottom end of the scallop 60 is provided with a circle of bosses 63, which protrude outward along the outer surface of the scallop 60. The bosses 63 are provided with a circle of sealing grooves 631, which contain sealing rings.

[0078] The positioning member 70 is provided with a mounting hole 71 , and the boss 63 is mounted in the mounting hole 71 , and the scallop 60 is mounted and positioned in the scallop mounting hole 31 through the positioning member 70 .

[0079] To be more specific, in the direction in which the scallop 60 contacts the force transmission component 50, there is an opposite concave spherical surface 61 on the top surface of the scallop 60, and the radius of the concave spherical surface 61 is greater than the radius of the lower spherical surface 51 of the force transmission component 50. There is an arc or chamfer or neck 62 on the shoulder of the scallop 60 to prevent the outer ring of the force auxiliary component 40 from interfering with the shoulder of the scallop 60 when the scallop 60 moves.

[0080] The present invention further provides a weighing system, which is characterized in that the weighing system includes the weighing sensor connecting member as described above.

[0081] The weighing sensor connecting piece of the present invention changes the shape of the top of the scallop and adds an auxiliary mechanism between the top of the scallop and the loading surface of the weighing sensor in response to the movement of the scallop on the loading surface of the weighing sensor, thereby achieving the purpose of positioning the weighing loading force and transmitting it to the loading surface of the weighing sensor.

[0082] In summary, the weighing sensor connector and the weighing system including the same of the present invention, based on the existing weighing sensor stub mounting hole and stub mechanism, reduce the influence of stub movement on weighing performance through structural changes, which helps to improve the weighing performance of the existing weighing system using the connecting structure.

[0083] The load cell connector can improve the transmission of force to the load cell loading surface by adding a force transmission positioning mechanism, reduce the change of the force loading position point, thereby improving the performance of the load cell and further improving the performance of the multi-sensor weighing system.

[0084] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A weighing sensor connector, mounted on a loading surface of a weighing sensor, characterized in that: The load cell connecting member includes a force transmission component and a stalk. A stalk mounting hole is provided on the load cell loading surface. The force transmission component is installed in the stalk mounting hole. The upper end surface of the force transmission component is consistent with the contact surface of the stalk mounting hole. The stalk is installed in the stalk mounting hole so that the top end of the stalk abuts against the force transmission component. The weighing sensor connector also includes a force transmission auxiliary component, the inner ring of the force transmission auxiliary component is connected to the force transmission component, and the force transmission auxiliary component includes an annular sheet body, a plurality of first connecting plates arranged at intervals from each other, and a plurality of second connecting plates arranged at intervals from each other, the first connecting plates protruding upward along the outer ring edge of the annular sheet body, the second connecting plates protruding downward along the outer ring edge of the annular sheet body, and adjacent first connecting plates and second connecting plates are spaced apart in the upper and lower directions; the shoulder at the top of the scallop is provided with an arc, chamfer or neck.

2. The weighing sensor connector according to claim 1, characterized in that: The inner ring of the force transmission auxiliary component is provided with a through hole, and the force transmission component is installed in the through hole, so that the relative position of the force transmission component and the loading surface of the weighing sensor remains fixed during the loading process; The force transmission auxiliary component is installed in the scallop installation hole of the loading surface of the weighing sensor, so that the outer ring of the force transmission auxiliary component is connected to the inner wall surface of the scallop installation hole.

3. The weighing sensor connector according to claim 2, characterized in that: The weighing sensor connecting piece further includes a positioning piece, which is mounted on the bottom end of the scallop and fixed to the lower end surface of the loading surface of the weighing sensor.

4. The weighing sensor connector according to claim 1, wherein: The first connecting piece and the second connecting piece are connected to the inner wall surface of the scallop mounting hole.

5. The weighing sensor connector according to claim 2, wherein: The through hole is opened on the annular sheet body to form the inner ring of the force transmission auxiliary component.

6. The weighing sensor connector according to claim 5, characterized in that: The force transmission auxiliary component also includes a plurality of third connecting plates arranged at intervals from each other and a plurality of fourth connecting plates arranged at intervals from each other, the third connecting plates protruding upward along the inner ring edge of the annular sheet-shaped body, the fourth connecting plates protruding downward along the inner ring edge of the annular sheet-shaped body, and adjacent third connecting plates and fourth connecting plates are spaced apart from each other.

7. The weighing sensor connector according to claim 1, wherein: The force transmission component is a cylinder, the upper end surface of the cylinder is an outwardly convex spherical surface, the lower end surface of the cylinder is a plane, and the top end surface of the scallop is an upwardly convex spherical surface.

8. The weighing sensor connector according to claim 2, wherein: The force transmission component is a cylinder, and the upper end surface and the lower end surface of the cylinder are both convex spherical surfaces; The top surface of the scallop is set as an inverted concave spherical surface, the radius of the concave spherical surface is larger than the spherical radius of the lower end surface of the force transmission component, and the spherical surface of the lower end surface of the force transmission component is installed in the concave spherical surface.

9. The weighing sensor connector according to claim 1, wherein: A circle of bosses is provided at the bottom end of the scallop, and the bosses protrude outward along the outer surface of the scallop. A circle of sealing grooves is provided on the bosses, and a sealing ring is provided in the sealing grooves.

10. A weighing system, characterized in that: The weighing system comprises the weighing sensor connecting piece according to any one of claims 1 to 9.

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