Basal body structure based on double-lever type electronic balance weighing sensor

Abstract

The utility model relates to a base body structure based on a double-lever type electronic balance weighing sensor, the base body structure comprises a mounting platform and wall bodies arranged on two sides of the mounting platform, and the base body structure is sequentially provided with a top lower accommodating cavity and a top accommodating cavity above the mounting platform. The base is provided with a bottom containing cavity, a bottom upper containing cavity and a bottom lower containing cavity below the installation platform, and the two ends of the base body structure are each provided with an end containing cavity. According to the technical scheme, the size of the double-lever weighing sensor can be effectively reduced, especially the span in the length direction, and the internal space of the base body structure can be fully utilized.

Description

Technical Field

[0001] This disclosure relates to the field of electronic balance technology, and in particular to a substrate structure based on a dual-lever electronic balance weighing sensor. Background Technology

[0002] Currently, in the field of dual-lever electronic balances, the dual-lever load cell, as the core component of the electronic balance, mostly has an irregular structure, which is not regular and the internal space utilization is not high. For example, the load cell with publication number CN113124968A has its base, support frame, first-stage lever, second-stage lever, top conductor, and bottom conductor designed as an integrated structure. This means that the first-stage lever and second-stage lever need to be connected sequentially along the length of the base, which results in the base being lengthened. Furthermore, there is no space inside the base to accommodate the magnet assembly. A mounting plate needs to protrude from the rear end of the base to install the magnet assembly, which further increases the length of the base and is not conducive to the miniaturization design of the dual-lever load cell. Utility Model Content

[0003] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, this disclosure provides a base structure based on a dual-lever electronic balance weighing sensor, including an installation platform and walls on both sides of the installation platform, wherein the installation platform is located in the upper middle part between the two walls;

[0005] The base structure has a lower top receiving cavity and an upper top receiving cavity arranged sequentially above the installation platform; the base structure has a bottom receiving cavity, a lower bottom receiving cavity, and a lower bottom receiving cavity arranged below the installation platform, the upper bottom receiving cavity and the lower bottom receiving cavity being arranged vertically and both penetrating the bottom receiving cavity; the front and rear ends of the installation platform are recessed inward relative to the wall ends at the same end to form the installation end, the installation end and the two side walls protruding outward relative to the installation end together to form the end receiving cavity;

[0006] The top cavity is used to house the first-level lever, and the bottom cavity is used to house the second-level lever. After the first-level lever and the second-level lever are housed, they form upper and lower cavities in the base structure, and their rear ends are aligned and connected.

[0007] The upper cavity is used to house the top conductor, and the lower cavity is used to house the bottom conductor. After the top and bottom conductors are housed, they form symmetrical upper and lower cavities in the base structure.

[0008] The bottom cavity is used to house the inverted magnet sleeve assembly. The second front end of the secondary lever housed in the bottom cavity passes through the inverted magnet sleeve assembly and is located in the photoelectric detection seam at the front end of the base structure.

[0009] In one feasible implementation, the top and side walls of the mounting platform together form the lower receiving cavity, and at least a portion of the top of the wall is recessed downward to form the upper receiving cavity located above the lower receiving cavity. The bottom and side walls of the mounting platform together form the lower receiving cavity. The bottom of the mounting platform protrudes downward at its rear end to form the upper receiving cavity penetrating the lower receiving cavity together with the side walls. At least a portion of the bottom of the wall is recessed upward to form the lower receiving cavity penetrating the lower receiving cavity.

[0010] In one feasible implementation, the top surface of the unrecessed portion of the top of the wall forms a second top connecting wall at the same height as the top surface of the top conductor, and the top surface of the unrecessed portion of the bottom of the wall forms a second bottom connecting wall at the same height as the bottom surface of the bottom conductor.

[0011] Preferably, the tops of both walls are recessed downwards at the second top connecting wall near the same side to form a top adjusting flat wall extending to the front end of the wall, and the bottoms of both walls are recessed upwards at the second bottom connecting wall near the same side to form a bottom adjusting flat wall extending close to the front end of the wall. The two top adjusting flat walls are set at the same height, and the two bottom adjusting flat walls are set at the same height.

[0012] Preferably, both walls are provided with elongated adjustment holes along the length of the base structure near the top adjustment wall, and both walls are provided with adjustment slots at the rear ends corresponding to the elongated adjustment holes. Vertical tightening holes are provided on the walls at the adjustment slots, and adjustment rods are screwed into the vertical tightening holes. The top adjustment wall can be adjusted by screwing in or out the adjustment rods to keep the two top adjustment walls relatively parallel and at the same height.

[0013] In one feasible implementation, the installation platform is provided with an installation hole that communicates with the top and bottom accommodating cavities. The bottom end of the magnet sleeve is fitted into the installation hole, and the remaining part of the magnet sleeve is inverted on the bottom accommodating cavity.

[0014] In one feasible implementation, both walls are provided with mounting feet at the front and rear ends of the bottom, and the mounting feet are provided with connecting holes extending upward from the bottom.

[0015] In one feasible implementation, a photoelectric detection plate is provided at the front end of the substrate structure, and the photoelectric detection seam is disposed in the photoelectric detection plate.

[0016] In one feasible implementation, the rear mounting end extends downward to form an extended mounting wall for the secondary lever to form a fulcrum connection.

[0017] In one feasible implementation, the front mounting end forms a stepped mounting wall, which includes an outwardly protruding intermediate mounting wall and a side mounting wall located next to the intermediate mounting wall.

[0018] Preferably, two intermediate mounting walls are provided and symmetrically arranged along the width direction of the front mounting end, and two side mounting walls are provided and symmetrically arranged along the width direction of the front mounting end.

[0019] Compared with the prior art, this disclosure includes at least the following beneficial effects:

[0020] The base structure disclosed herein is provided with various receiving cavities, which can be separated by the installation platform to form upper and lower partitions. After the components are received in the receiving cavities, they do not interfere with each other. The internal space of the base structure can be fully utilized. Furthermore, the first-stage lever and the second-stage lever after being received can be arranged vertically within the base, and their rear ends can remain vertically aligned. This does not lengthen the span of the base structure in the length direction, which is beneficial for the miniaturization design of the double-lever electronic balance.

[0021] The base structure disclosed herein differs significantly from long-standing existing technologies in that the magnet assembly is installed in an inverted manner. The mounting platform is located in the upper-middle position between the two side walls, thus providing sufficient space below the mounting platform to accommodate the inverted magnet assembly. After the primary and secondary levers are accommodated and connected, the second front end of the secondary lever can pass through the lower-middle part of the inverted magnet assembly. Through the cooperation of various components, the dual-lever weighing sensor required by this disclosure, particularly with an effective reduction in span in the length direction, can be obtained. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0023] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0025] Figure 1This is one of the three-dimensional structural schematic diagrams of this disclosure;

[0026] Figure 2 This is the second schematic diagram of the three-dimensional structure disclosed herein;

[0027] Figure 3 This is a partial top view of the substrate structure of the present disclosure used in a dual-lever weighing sensor;

[0028] Figure 4 This is one of the partial three-dimensional structural diagrams of the substrate structure disclosed herein used for a dual-lever weighing sensor;

[0029] Figure 5 This is the second partial three-dimensional structural diagram of the substrate structure disclosed herein used in a dual-lever weighing sensor. Detailed Implementation

[0030] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0031] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0032] This disclosure provides a base structure for a dual-lever electronic balance weighing sensor. This base structure breaks away from the conventional approach of upright magnetic steel sleeves, instead inverting the magnetic steel sleeves. The mounting platform is positioned in the upper-middle part of the base structure, leaving sufficient space below to accommodate the inverted magnetic steel sleeves. The primary and secondary levers are separately positioned on the mounting platform, with the main body of the secondary lever placed within the inverted magnetic steel sleeves. The second front end of the secondary lever extends through the magnetic steel sleeves into a photoelectric detection hole at the front of the base structure. A clearance space is provided below the inverted magnetic steel sleeves to accommodate the main body of the secondary lever. The second rear end of the secondary lever is aligned with the first rear end of the primary lever, which is located above the mounting platform, and they are connected by a vertically mounted connecting spring to achieve force transmission. Based on the above concept, this disclosure enables the first-stage and second-stage levers to be arranged vertically within the base structure, effectively reducing the length of the base structure. More importantly, the magnet sleeve is inverted and housed within the base structure, which not only avoids the addition of the magnet sleeve outside the base structure and effectively reduces the length of the base structure, but also constructs the required dual-lever weighing sensor.

[0033] The following detailed description of the substrate structure of the dual-lever electronic balance weighing sensor disclosed herein is provided through specific embodiments:

[0034] Reference Figures 1 to 5 As shown, this disclosure presents a base structure based on a dual-lever electronic balance weighing sensor. The dual-lever electronic balance weighing sensor mainly includes the base structure of this disclosure, as well as components such as a top conductor 40, a bottom conductor 50, a primary lever 60, a secondary lever 70, a support bracket 20, and a magnet sleeve 30. The base structure of this disclosure mainly includes a mounting platform 101 and walls 102 located on both sides of the mounting platform 101. The mounting platform 101 is situated in the upper-middle position between the two walls 102, thus the space below the mounting platform 101 is larger than the space above it.

[0035] In this disclosure, the base structure also provides multiple receiving cavities. Specifically, the top of the mounting platform 101 and the walls 102 on both sides together form a horizontal lower receiving cavity 103. At least a portion of the top of the walls 102 is recessed downwards to form a horizontal upper receiving cavity 104 located above the lower receiving cavity 103. The bottom of the mounting platform 101 and the walls 102 on both sides together form a vertical bottom receiving cavity 105. The bottom of the mounting platform 101 protrudes downwards at its rear end. The upper cavity 106 extends to form a horizontally penetrating bottom cavity 105 together with the walls 102 on both sides; at least part of the bottom of the wall 102 is recessed upward to form a lower cavity 107 that horizontally penetrates the bottom cavity 105; the front and rear ends of the mounting platform 101 are recessed inward relative to the ends of the walls 102 at the same end to form a mounting end 108, and the mounting end 108 and the two walls 102 protruding outward relative to the mounting end 108 together form a vertical end cavity 109.

[0036] The upper cavity 103 is used to accommodate the first-stage lever 60, and the lower cavity 106 is used to accommodate the second-stage lever 70. After the first-stage lever 60 and the second-stage lever 70 are accommodated, they form upper and lower cavities in the base structure, and their rear ends are still aligned and connected. Specifically, the two are connected by a vertical connecting spring (not marked), thereby enabling the first-stage lever 60 to transmit force to the second-stage lever 70 located below.

[0037] The upper cavity 104 is used to accommodate the upper conductor 40, and the lower cavity 107 is used to accommodate the lower conductor 50. After the upper conductor 40 and the lower conductor 50 are accommodated, they form symmetrical upper and lower cavities in the base structure.

[0038] The bottom receiving cavity 105 is used to invert and receive the magnet sleeve 30. The front end 701 of the secondary lever 70, which is received in the bottom receiving cavity 106, passes through the inverted magnet sleeve 30 and is located in the photoelectric detection seam 80 at the front end of the base structure.

[0039] Specifically, the base structure disclosed herein has a regular overall design, which enables the components, such as the top conductor 40, bottom conductor 50, primary lever 60, and secondary lever 70, to be set up in upper and lower sections with the installation platform 101 as the boundary. They are arranged in a regular manner and do not interfere with each other. More importantly, it can effectively reduce the volume of the weighing sensor, especially the span in the length direction. Furthermore, the magnet sleeve 30 is set up in an inverted manner, which enables the secondary lever 7 to be inserted in its lower part, thereby obtaining the required double lever weighing sensor.

[0040] In some embodiments, the top surface of the unretracted portion of the top of the wall 102 forms a top connecting wall 1021 at the same height as the top surface of the top conductor 40, and the top surface of the unretracted portion of the bottom of the wall 102 forms a bottom connecting wall 1022 at the same height as the bottom surface of the bottom conductor 50.

[0041] In this embodiment, by setting the top connecting wall 1021 and the bottom connecting wall 1022 at the same height, there is no local height difference during the force transmission process, the force transmission is unobstructed, and the transmission is more stable and smooth. Furthermore, the top connecting wall 1021 and the bottom connecting wall 1022 are set locally at the top and bottom of the wall 102, avoiding the need to process the entire top and bottom of the wall 102, which can effectively improve processing efficiency.

[0042] In some embodiments, the tops of both walls 102 are recessed downwards near the top connecting wall 1021 on the same side to form a top adjusting flat wall 1023 extending to the front end of the wall 102, and after the top conductor 40 is installed, there is a vertical gap between its bottom and the top adjusting flat wall 1023; the bottoms of both walls 102 are recessed upwards near the bottom connecting wall 1022 on the same side to form a bottom adjusting flat wall 1024 extending close to the front end of the wall 102, and after the bottom conductor 50 is installed, there is a vertical gap between its top and the bottom adjusting flat wall 1024; the two top adjusting flat walls 1023 are set at the same height, and the two bottom adjusting flat walls 1024 are also set at the same height.

[0043] In this embodiment, after the top adjusting flat wall 1023 and the bottom adjusting flat wall 1024 are installed, the gap between them ensures that the corresponding top conductor 40 and bottom conductor 50 will not be in direct contact with the entire top and bottom of the wall panel 102, thus not affecting their function. For the top adjusting flat wall 1023 and the bottom adjusting flat wall 1024, there is a height difference between them and their respective top connecting wall 1021 and bottom connecting wall 1022, thereby forming the top receiving cavity 104 and the bottom receiving cavity 107, which accommodate the top conductor 40 and the bottom conductor 50.

[0044] In some embodiments, both walls 102 are provided with elongated adjustment holes 1025 along the length of the base structure near the top adjustment wall 1023. Both walls 102 are provided with adjustment slots 1026 at their rear ends corresponding to the elongated adjustment holes 1025. A vertical tightening hole 1027 is provided on the wall 102 at the adjustment slot 1026. An adjustment rod (not shown) is screwed into the vertical tightening hole 1027. The top adjustment wall 1023 can be adjusted by screwing in or out of the adjustment rod to keep the two top adjustment walls 1023 relatively parallel and at the same height.

[0045] In this embodiment, the distance between the adjusting slit 1026 and the elongated adjusting hole 1025 is relatively close, forming a thin-walled structure. During adjustment, it has a certain degree of micro-elasticity and can realize the height adjustment of the top adjusting flat wall 1023. The height adjustment refers to a small size adjustment, not a large size adjustment.

[0046] In some embodiments, the mounting platform 101 is provided with mounting holes 1012 that communicate with the top lower cavity 103 and the bottom cavity 105. The bottom end of the magnet sleeve 30 is fitted into the mounting hole 1012, and the remaining part of the magnet sleeve 30 is inverted in the bottom cavity 105.

[0047] In this embodiment, the mounting hole 1012 is a stepped hole, which can be used to position the magnet sleeve 30 while installing it with fasteners, thereby enhancing the stability of the connection. The bottom cavity 105 has sufficient vertical height to accommodate the magnet sleeve 30, and the lower part of the magnet sleeve 30 is provided with a clearance space that can accommodate the main body section 702 of the secondary lever 70 located below.

[0048] In some embodiments, both walls 102 are provided with mounting feet 1028 at the front and rear ends of the bottom. The mounting feet 1028 are provided with connecting holes (not shown) extending upward from the bottom. Correspondingly, the bottom of the electronic balance housing is provided with a support platform (not shown) that matches the mounting feet 1028. The support platform is provided with connecting holes through the bottom. Using fasteners, such as screws, the connecting holes of the support platform and the mounting feet 1028 are passed through in sequence, and the screws are tightened to complete the connection between the base structure and the housing.

[0049] In this embodiment, the mounting base 1028 is constructed into a square solid structure with a regular and sturdy overall shape, which meets the load-bearing strength requirements.

[0050] In some embodiments, a photoelectric detection plate 10 is provided at the front end of the substrate structure, and the photoelectric detection slot 80 is provided in the photoelectric detection plate 10. Setting the photoelectric detection plate 10 separately can avoid the bulkiness and material consumption of the substrate structure as a whole, which would be caused by integral molding with the substrate structure. In this case, the photoelectric detection plate 10 can be made of separate materials and the wall thickness can be made thinner.

[0051] In some embodiments, the rear mounting end 108 extends downward to form an extended mounting wall 1011, so that the secondary lever 70 forms a fulcrum connection via a fulcrum spring (not marked).

[0052] In this embodiment, by extending the mounting wall 1011, the length of the fulcrum spring can be reduced, avoiding excessive use of long fulcrum springs. The use of short fulcrum springs can reduce the vertical connection distance between the secondary lever 70 and the mounting end 108, thereby enhancing the stability of the connection.

[0053] In some embodiments, the front mounting end 108 forms a stepped mounting wall, which includes an outwardly protruding intermediate mounting wall 1081 and a side mounting wall 1082 located beside the intermediate mounting wall 1081.

[0054] In this embodiment, after the intermediate mounting wall 1081 and the side mounting wall 1082 are installed, the first-stage lever 60 can form a fulcrum connection with either the intermediate mounting wall 1081 or the side mounting wall 1082 via a fulcrum spring (not marked). In actual use, the intermediate mounting wall 1081 and the side mounting wall 1082 are generally used individually to represent different measuring ranges of the electronic balance.

[0055] It should be noted that, in this embodiment, two intermediate mounting walls 1081 are provided and symmetrically arranged along the width direction of the front mounting end 108, and two side mounting walls 1082 are provided and symmetrically arranged along the width direction of the front mounting end 108. Both the intermediate mounting walls 1081 and the side mounting walls 1082 are arranged in pairs. When connected using springs, the springs are symmetrically distributed, ensuring balanced force distribution and maintaining the stability of the entire connection.

[0056] In this disclosure, the term "multiple" refers to two or more unless otherwise expressly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be 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 disclosure according to the specific circumstances.

[0057] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or unit 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 disclosure.

[0058] In the description of this specification, the terms "this embodiment," "this embodiment," "some embodiments," "specific embodiments," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A substrate structure based on a dual-lever electronic balance weighing sensor, characterized in that: It includes an installation platform and walls on both sides of the installation platform, wherein the installation platform is located in the upper middle part between the two side walls; The base structure has a lower top receiving cavity and an upper top receiving cavity arranged sequentially above the installation platform; the base structure has a bottom receiving cavity, a lower bottom receiving cavity, and a lower bottom receiving cavity arranged below the installation platform, the upper bottom receiving cavity and the lower bottom receiving cavity being arranged vertically and both penetrating the bottom receiving cavity; the front and rear ends of the installation platform are recessed inward relative to the wall ends at the same end to form the installation end, the installation end and the two side walls protruding outward relative to the installation end together to form the end receiving cavity; The top cavity is used to house the first-level lever, and the bottom cavity is used to house the second-level lever. After the first-level lever and the second-level lever are housed, they form upper and lower cavities in the base structure, and their rear ends are aligned and connected. The upper cavity is used to house the top conductor, and the lower cavity is used to house the bottom conductor. After the top and bottom conductors are housed, they form symmetrical upper and lower cavities in the base structure. The bottom cavity is used to house the inverted magnet sleeve assembly. The second front end of the secondary lever housed in the bottom cavity passes through the inverted magnet sleeve assembly and is located in the photoelectric detection seam at the front end of the base structure.

2. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 1, characterized in that, The top and side walls of the installation platform together form the lower receiving cavity. At least a portion of the top of the wall is recessed downward to form the upper receiving cavity located above the lower receiving cavity. The bottom and side walls of the installation platform together form the lower receiving cavity. The bottom of the installation platform protrudes downward at the rear end to form the upper receiving cavity that penetrates the lower receiving cavity together with the side walls. At least a portion of the bottom of the wall is recessed upward to form the lower receiving cavity that penetrates the lower receiving cavity.

3. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 2, characterized in that, The top surface of the unrecessed portion of the wall forms a second top connecting wall at the same height as the top surface of the top conductor, and the top surface of the unrecessed portion of the wall forms a second bottom connecting wall at the same height as the bottom surface of the bottom conductor.

4. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 3, characterized in that, The tops of both walls are recessed downwards at the second top connecting wall on the same side to form a top adjustable flat wall extending to the front end of the wall. The bottoms of both walls are recessed upwards at the second bottom connecting wall on the same side to form a bottom adjustable flat wall extending to the front end of the wall. The two top adjustable flat walls are set at the same height, and the two bottom adjustable flat walls are set at the same height.

5. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 4, characterized in that, Both walls are provided with elongated adjustment holes along the length of the base near the top adjustment wall. Both walls are provided with adjustment slots at the rear end corresponding to the elongated adjustment holes. Vertical tightening holes are provided on the walls at the adjustment slots, and adjustment rods are screwed into the vertical tightening holes.

6. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 2, characterized in that, The installation platform is provided with an installation hole that communicates with the top and bottom accommodating cavities. The bottom end of the magnet sleeve is fitted into the installation hole, and the rest of the magnet sleeve is inverted in the bottom accommodating cavity.

7. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 1, characterized in that, Both walls are provided with mounting feet at the front and rear ends of the bottom, and the mounting feet are provided with connecting holes extending upward from the bottom.

8. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 2, characterized in that, A photoelectric detection plate is provided at the front end of the substrate structure, and the photoelectric detection seam is located on the photoelectric detection plate.

9. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 2, characterized in that, The rear mounting end extends downward to form an extended mounting wall, which provides a fulcrum connection for the secondary lever.

10. The substrate structure based on the dual-lever electronic balance weighing sensor according to claim 2, characterized in that, The front mounting end forms a stepped mounting wall, which includes an outwardly protruding middle mounting wall and a side mounting wall located next to the middle mounting wall.

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