CN213902600U - Vertical force detection assembly - Google Patents
Vertical force detection assembly Download PDFInfo
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- CN213902600U CN213902600U CN202023200166.8U CN202023200166U CN213902600U CN 213902600 U CN213902600 U CN 213902600U CN 202023200166 U CN202023200166 U CN 202023200166U CN 213902600 U CN213902600 U CN 213902600U
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- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 230000007704 transition Effects 0.000 claims description 15
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 description 21
- 230000008602 contraction Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The application relates to a vertical force detection assembly, and belongs to the technical field of force detection assemblies. The vertical force detection assembly comprises an upper fixing block, a lower fixing block, a sensor and a connecting block. The sensor is arranged between the upper fixing block and the lower fixing block, is connected with the lower fixing block and can slide on a horizontal plane relative to the lower fixing block; the connecting block is arranged between the upper fixing block and the sensor, the connecting block is fixedly connected with the sensor and forms a spherical pair structure with the upper fixing block, and the center line of the sensor passes through the center of the spherical pair structure along the vertical direction. This vertical power determine module can reduce the influence of horizontal force, guarantees the detection precision of vertical power.
Description
Technical Field
The application relates to the technical field of force detection assemblies, in particular to a vertical force detection assembly.
Background
The automobile weighing apparatus comprises a static weighing apparatus and a dynamic weighing apparatus. In weighing, the weighing apparatus needs to directly apply load to the weighing sensor through the weighing body (table top). In the weighing process of a static weighing apparatus or a dynamic weighing apparatus, the load force can be transmitted to the weighing sensor completely along the vertical direction without any interference, and only then, the data detected by the weighing sensor can be ensured to reflect the real weight of the detected object more accurately. Based on the detection data, whether the vehicle is overloaded or not can be identified more quickly, and the overload phenomenon can be managed more scientifically and effectively.
However, in the actual detection process, the table surface of the weighing apparatus may be affected by external forces in multiple directions, especially the horizontal force generated by braking deceleration when the target vehicle passes through the weighing apparatus, the force acts on the rigid table surface, and is transmitted to the inside of the weighing apparatus together with the vehicle gravity and acts on the weighing sensor, the detection result of the weighing sensor is directly affected, and thus the actual weight detection of the target vehicle by the weighing apparatus is inaccurate. In addition, the scale body has the characteristics of expansion with heat and contraction with cold, which can generate internal stress inside the scale body, once the internal stress cannot be released, local tiny bending deformation may be generated for the rigid scale body, and thus a bending moment acting on the weighing sensor is generated, thereby also causing uncertainty in the detection accuracy of the weighing apparatus.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a vertical power determine module, can reduce the influence of horizontal force, guarantees the detection precision of vertical power.
The application is realized by the following technical scheme:
the application provides a vertical force detection subassembly includes:
an upper fixed block;
a lower fixed block;
the sensor is arranged between the upper fixing block and the lower fixing block, is connected with the lower fixing block and can slide on a horizontal plane relative to the lower fixing block;
the connecting block is arranged between the upper fixing block and the sensor, the connecting block is fixedly connected with the sensor and forms a spherical pair structure with the upper fixing block, and the center line of the sensor passes through the center of the spherical pair structure along the vertical direction.
According to the vertical force detection assembly, based on the fact that the sensor can slide on a horizontal plane relative to the lower fixing block, the detection assembly has the freedom degree in the horizontal direction, a release space acting on the horizontal force of the sensor is reserved, the influence of external horizontal force on the sensor can be eliminated, and meanwhile, the influence of bending moment on detection precision due to the fact that the horizontal force acts on a rigid table top (a balance body above an upper fixing block) is avoided; the connecting block and the upper fixing block form a spherical pair structure, so that the load force acting on the upper fixing block can be transmitted vertically downwards through the center of the sensor, and the detection precision is ensured; meanwhile, the center line of the sensor passes through the center of the spherical pair structure, so that the load force of the upper fixing block can be transmitted in the vertical direction and passes through the center of the sensor, and the component force generated by different shafts is prevented from acting on the sensor, thereby not only influencing the detection precision, but also increasing the abrasion of the sensor and reducing the service life of the sensor.
In some embodiments of the present application, the sensor is connected to the lower fixed block by a linear moving pair structure.
In the above scheme, the linear moving pair structure can ensure that the sensor moves in a horizontal direction relative to the lower fixed block, so that the detection assembly releases deformation caused by thermal expansion and cold contraction of the scale body.
In some embodiments of the present application, a sliding block is formed at a lower end of the sensor, the lower fixed block is provided with a sliding groove corresponding to the sliding block, the sliding block is configured to be in sliding fit with the sliding groove, and the sliding block and the sliding groove form a linear movement pair structure.
In the scheme, the linear moving pair structure is a sliding block sliding groove structure, so that the sensor can move flexibly relative to the lower fixed block.
In some embodiments of the present application, the runner is a T-shaped slot or dovetail.
In the above scheme, the structural style of spout can restrict the sensor upwards break away from the spout, ensures better bearing capacity.
In some embodiments of the present application, the vertical force detecting assembly further includes a transition block disposed between the sensor and the lower fixed block, an upper end of the transition block and the sensor forming a linear movement pair structure along a first horizontal direction, and a lower end of the transition block and the lower fixed block forming a linear movement pair structure along a second horizontal direction perpendicular to the first horizontal direction.
In the above scheme, the sensor can move in two mutually perpendicular's horizontal directions for lower fixed block, and it is nimble to remove to the better release of detection subassembly is because of the deformation of the thermal expansion of the weighing body shrinkage in the horizontal plane.
In some embodiments of the present application, the sensor and the lower fixture block form a planar secondary structure.
In the scheme, the plane pair structure formed by the sensor and the lower fixing block can enable the sensor to move flexibly in the horizontal plane relative to the lower fixing block, and the detection assembly is convenient to release deformation in the horizontal plane due to expansion with heat and contraction with cold of the scale body.
In some embodiments of the present application, a T-shaped connection portion is disposed at a lower end of the sensor, a groove corresponding to the T-shaped connection portion is formed in the lower fixing block, and the T-shaped connection portion is configured to extend into the groove; the vertical force detection assembly further comprises a limiting plate, the limiting plate sealing cover is connected with the lower fixing block at the opening of the groove, a limiting hole is formed in the limiting plate, the limiting hole is configured to be sleeved on the T-shaped connecting portion, the limiting plate is used for limiting the T-shaped connecting portion to be upwards separated from the groove, and the T-shaped connecting portion and the groove bottom of the groove form a plane auxiliary structure.
In above-mentioned scheme, through limiting plate and the cooperation of T font connecting portion, restriction T font connecting portion upwards break away from the recess, and then restriction sensor along vertical direction's removal for the detecting component constitutes one whole, the fixed connection of the detecting component of being convenient for and the title body is favorable to detecting the promotion of precision.
In some embodiments of this application, the lower extreme of going up the fixed block is provided with the bulb, and vertical power determine module still includes the bearing inner race, and the mounting groove that is used for holding the bearing inner race is offered to the connecting block, and the bearing inner race is installed in the mounting groove, and the bearing inner race includes interior sphere, and the bulb is configured to form sphere pair structure with interior sphere sliding fit.
In the scheme, the spherical pair structure is formed by matching the ball head with the inner spherical surface of the bearing outer ring, and the structure is simple and flexible to assemble.
In some embodiments of the present application, the vertical force detection assembly further includes a retainer ring configured to be secured to a groove wall of the mounting groove to confine the bearing outer race within the mounting groove.
In the above scheme, the installation and positioning of the bearing outer ring can be realized through the retainer ring, the position fixation of the bearing outer ring is ensured, the relative movement of the spherical pair structure along the vertical direction is limited, the stability of the spherical pair structure is ensured, and the detection precision is further ensured.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a vertical force detection assembly according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a vertical force sensing assembly according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a vertical force detection assembly according to another embodiment of the present application.
Icon: 100-a vertical force detection assembly; 10-fixing the block; 20-lower fixed block; 21-a chute; 22-a groove; 30-a sensor; 31-a slide block; 32-a first slider; a 33-T shaped connection; 331-horizontal connection; 332-a vertical connection; 34-mounting holes; 35-a threaded fastener; 40-connecting blocks; 41-mounting groove; 42-a threaded hole; 50-spherical pair structure; 51-ball head; 52-bearing outer race; 53-connecting rods; 54-a retainer ring; 60-a transition block; 61-a first runner; 70-a limiting plate; 71-limiting hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The vertical force detection assembly is connected between the rigid body and the base; the rigid body can be a rigid table top (such as a scale body) and is used for bearing an object to be detected, and the basic base is used for supporting and positioning. The vertical force detection assembly is fixedly connected with the rigid table board and the base in a detachable mode, so that connection firmness is guaranteed.
A vertical force detection assembly according to an embodiment of an aspect of the present application is described below with reference to the drawings.
As shown in fig. 1 to 3, a vertical force detection assembly 100 according to an embodiment of the present application includes: the device comprises an upper fixing block 10, a lower fixing block 20, a sensor 30 and a connecting block 40.
In particular, the upper fixing block 10 is used to connect to a rigid table (not shown) for carrying the object to be detected. The lower fixing block 20 is used to connect with a base (not shown) to realize positioning and supporting of the whole detecting assembly (the vertical force detecting assembly 100). The sensor 30 is used for detecting vertical force, the sensor 30 is arranged between the upper fixing block 10 and the lower fixing block 20, and the sensor 30 is connected to the lower fixing block 20 and can slide on a horizontal plane relative to the lower fixing block 20. The connecting block 40 is arranged between the upper fixing block 10 and the sensor 30, the connecting block 40 is fixedly connected with the sensor 30 and forms a spherical pair structure 50 with the upper fixing block 10, and the center line of the sensor 30 passes through the center of the spherical pair structure 50 along the vertical direction.
According to the vertical force detection assembly 100 of the embodiment of the present application, the force in the vertical direction is detected by the sensor 30. The sensing assembly has a degree of freedom in a horizontal direction based on the ability of the sensor 30 to slide on a horizontal plane with respect to the lower fixing block 20, and a space for releasing a horizontal force acting on the sensor 30 is reserved. When a horizontal force acts on the sensor 30, the sensor 30 can slide on a horizontal plane relative to the lower fixing block 20, so that the influence of the external horizontal force on the sensor 30 can be eliminated; meanwhile, the influence of bending moment generated on the sensor 30 on the detection precision due to the horizontal force acting on the rigid table top is avoided; the connecting block 40 and the upper fixing block 10 form a spherical pair structure 50, so that the load force acting on the upper fixing block 10 can be transmitted vertically downwards through the center of the sensor 30, and the detection precision is ensured. Meanwhile, the center line of the sensor 30 passes through the center of the spherical pair structure 50, so that the load force of the upper fixed block 10 can be transmitted in the vertical direction and passes through the center of the sensor 30, and the component force generated by different axes is prevented from acting on the sensor 30, thereby not only influencing the detection precision, but also increasing the abrasion of the sensor 30 and reducing the service life of the sensor 30.
In some embodiments, the centerline of the sensor 30 passes through the center of the spherical pair structure 50, which may be understood as the centerline of the sensor 30 passing through the center of the sphere of the spherical pair structure 50. After passing through the spherical pair structure 50, the load force of the upper fixing block 10 is vertically transmitted downwards and vertically downwards through the center of the sensor 30, so that the load force is ensured to act on the center of the sensor 30, and the detection precision is ensured.
In some embodiments, the sensor 30 is connected to the lower fixture block 20 by a linear motion pair structure. It can be understood that the sensor 30 can move in a horizontal direction relative to the lower fixing block 20, so that the detection assembly can release the deformation caused by the expansion and contraction of the scale body in the horizontal direction, and the detection precision is ensured.
In some embodiments, as shown in fig. 1, the lower end of the sensor 30 is formed with a sliding block 31, the lower fixed block 20 is provided with a sliding slot 21 corresponding to the sliding block 31, the sliding block 31 is configured to be in sliding fit with the sliding slot 21, and the sliding block 31 and the sliding slot 21 form a linear moving pair structure. As shown, the slide groove 21 extends in a horizontal direction, the sensor 30 is configured to be movable along the slide groove 21 relative to the lower fixed block 20, and the detection assembly has a degree of freedom in the horizontal direction. The linear moving pair structure formed by the sliding block 31 and the sliding groove 21 ensures that the sensor 30 can move flexibly relative to the lower fixed block 20.
In some embodiments, the sliding groove 21 is a T-shaped groove or a dovetail groove to limit the upward separation of the sensor 30 from the sliding groove 21, so as to limit the vertical position of the sensor 30 and ensure better bearing performance.
In other embodiments of the present application, the sliding groove 21 may also be a groove with other shapes, for example, the cross section of the sliding groove 21 may be a polygon.
In some embodiments, as shown in fig. 2, the vertical force detecting assembly 100 further includes a transition block 60, the transition block 60 being disposed between the sensor 30 and the lower fixed block 20, an upper end of the transition block 60 and the sensor 30 forming a linear movement sub-structure in a first horizontal direction, and a lower end of the transition block 60 and the lower fixed block 20 forming a linear movement sub-structure in a second horizontal direction perpendicular to the first horizontal direction. The sensor 30 can move in a first horizontal direction relative to the transition block 60, thereby realizing that the sensor 30 moves in the first horizontal direction relative to the lower fixing block 20; the sensor 30 can follow the transition block 60 and move along the second horizontal direction for lower fixed block 20 to realize that the sensor 30 can move at two mutually perpendicular's horizontal direction for lower fixed block 20, remove in a flexible way, can realize the removal of equidirectional according to the horizontal force of difference, so that the better release of detecting element is because of the deformation of the thermal expansion and contraction of cold of the title body in the horizontal plane.
In some embodiments, the lower end of the sensor 30 is provided with a first slider 32, the upper end of the transition block 60 is provided with a first sliding slot 61 engaged with the first slider 32, the first sliding slot 61 extends along the first horizontal direction, and the first slider 32 is configured to be slidably engaged with the first sliding slot 61; the lower end of the transition block 60 is provided with a second sliding block (not shown in the figure), the upper end of the lower fixed block 20 is provided with a second sliding groove (not shown in the figure) matched with the second sliding block, the second sliding groove extends along a second horizontal direction, and the second sliding block is configured to be in sliding fit with the second sliding groove. It should be noted that the first sliding groove 61 and the second sliding groove may be T-shaped grooves or dovetail grooves to perform a limiting function. In other embodiments of the present application, the first sliding groove 61 and the second sliding groove may also be grooves with other shapes, for example, the cross section of the first sliding groove 61 and the second sliding groove may be polygonal.
In some embodiments, the sensor 30 and the lower fixing block 20 form a planar pair structure, so that the sensor 30 can move flexibly in a horizontal plane relative to the lower fixing block 20, and the detection assembly is convenient to release deformation of the detection assembly in the horizontal plane due to thermal expansion and cold contraction of the detection assembly.
In some embodiments, as shown in fig. 3, a T-shaped connection portion 33 is disposed at the lower end of the sensor 30, a groove 22 corresponding to the T-shaped connection portion 33 is formed in the lower fixing block 20, and the T-shaped connection portion 33 is configured to extend into the groove 22; the vertical force detecting assembly 100 further includes a limiting plate 70, the limiting plate 70 covers the opening of the groove 22 and is connected to the lower fixing block 20, the limiting plate 70 is provided with a limiting hole 71, the limiting hole 71 is configured to be sleeved on the T-shaped connecting portion 33, the limiting plate 70 is used for limiting the T-shaped connecting portion 33 to be separated from the groove 22 upwards, and the T-shaped connecting portion 33 and the groove bottom of the groove 22 form a planar pair structure. Through limiting plate 70 and the cooperation of T font connecting portion 33, restriction T font connecting portion 33 upwards breaks away from recess 22, and then restriction sensor 30 is along vertical direction's removal for the detecting component constitutes one whole, is convenient for the fixed connection of detecting component and title body, is favorable to detecting the promotion of precision.
It can be understood that the T-shaped connecting portion 33 includes a horizontal connecting portion 331 and a vertical connecting portion 332, one end of the vertical connecting portion 332 is connected to the lower end of the sensor 30, the other end of the vertical connecting portion 332 is connected to the horizontal connecting portion 331 or integrally formed therewith, the limiting hole 71 is sleeved on the outside of the vertical connecting portion 332, the vertical connecting portion 332 is movably matched with the limiting plate 70, and one surface of the horizontal connecting portion 331, which is deviated from the vertical connecting portion 332, is in sliding fit with the groove bottom of the groove 22 to form a planar auxiliary structure.
In other embodiments, a ball or the like may be disposed between the horizontal connecting portion 331 and the bottom of the recess 22 to achieve a rolling fit between the horizontal connecting portion 331 and the bottom of the recess 22, so as to facilitate the horizontal connecting portion 331 to move in a horizontal plane relative to the lower fixing block 20.
In some embodiments, as shown in fig. 1, a ball 51 is disposed at a lower end of the upper fixing block 10, the vertical force detecting assembly 100 further includes a bearing outer ring 52, the connecting block 40 defines a mounting groove 41 for accommodating the bearing outer ring 52, the bearing outer ring 52 is mounted in the mounting groove 41, the bearing outer ring 52 includes an inner spherical surface, and the ball 51 is configured to be slidably fitted with the inner spherical surface to form the spherical pair structure 50. The spherical pair structure 50 is formed by matching the spherical head 51 with the inner spherical surface of the bearing outer ring 52, and has simple structure and flexible assembly.
In order to realize the flexible sliding of the ball head 51, the lower end of the upper fixing block 10 is connected with the ball head 51 through a connecting rod 53, and a gap is formed between the lower end of the upper fixing block 10 and the connecting block 40, so that the upper fixing block 10 can swing.
In some embodiments, as shown in fig. 1, the vertical force detection assembly 100 further includes a retaining ring 54, the retaining ring 54 being configured to be fixed to a groove wall of the mounting groove 41 to restrain the bearing outer race 52 within the mounting groove 41. Through the cooperation of retaining ring 54 and connecting block 40, can realize the installation location of bearing inner race 52, guarantee bearing inner race 52 rigidity, the relative movement of restriction spherical pair structure 50 along vertical direction ensures spherical pair structure 50's stability, and then guarantees the detection precision.
The retainer ring 54 may be a closed ring structure, and may be a plurality of discrete components that are spaced circumferentially around the mounting groove 41. The connection mode of the retainer ring 54 and the connecting block 40 can be screw connection, interference fit, clamping connection and the like.
In other embodiments, the spherical pair structure 50 may also be configured as a joint bearing to facilitate installation and ensure that the load force of the upper fixing block 10 is transmitted to the center of the sensor 30 in the vertical direction.
In some embodiments, as shown in fig. 1, the sensor 30 is provided with a mounting hole 34 penetrating through the sensor 30 in a vertical direction, the connecting block 40 is provided with a threaded hole 42 corresponding to the mounting hole 34, and the sensor 30 and the connecting block 40 are in threaded connection through a threaded fastener 35 (such as a bolt) penetrating through the mounting hole 34 and the threaded hole 42, so that the sensor 30 and the connecting block 40 are firmly connected, and maintenance and replacement are facilitated.
According to the vertical force detection assembly 100 of the embodiment of the application, the degree of freedom in the horizontal direction is set, a release space for the horizontal force acting on the sensor 30 is reserved, and the influence of the external horizontal force on the sensor 30 can be eliminated; meanwhile, the influence of bending moment on the detection precision caused by the horizontal force acting on the rigid table top and generated on the sensor 30 is avoided. When the bidirectional moving structure is adopted, the structural deformation of the detection assembly caused by expansion with heat and contraction with cold can be released, and the influence of the structural deformation on the detection precision of the sensor 30 is overcome. The detection assembly can be conveniently installed on a rigid table board and a base, so that two functions of fixed installation and adaptation to temperature change are considered well.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A vertical force sensing assembly, comprising:
an upper fixed block;
a lower fixed block;
the sensor is arranged between the upper fixing block and the lower fixing block, is connected with the lower fixing block and can slide on a horizontal plane relative to the lower fixing block;
the connecting block is arranged between the upper fixing block and the sensor, the connecting block is fixedly connected with the sensor and forms a spherical pair structure with the upper fixing block, and the center line of the sensor passes through the center of the spherical pair structure along the vertical direction.
2. The vertical force sensing assembly of claim 1, wherein the sensor is coupled to the lower mounting block via a linear motion pair.
3. The vertical force detecting assembly according to claim 2, wherein a sliding block is formed at a lower end of the sensor, the lower fixing block is provided with a sliding groove corresponding to the sliding block, the sliding block is configured to be in sliding fit with the sliding groove, and the sliding block and the sliding groove form the linear moving pair structure.
4. The vertical force sensing assembly of claim 3, wherein the runner is a T-slot or dovetail.
5. The vertical force sensing assembly of claim 1, further comprising a transition block disposed between the sensor and the lower fixed block, an upper end of the transition block and the sensor forming a linear movement sub-structure along a first horizontal direction, and a lower end of the transition block and the lower fixed block forming a linear movement sub-structure along a second horizontal direction perpendicular to the first horizontal direction.
6. The vertical force sensing assembly of claim 1, wherein the sensor forms a planar secondary structure with the lower fixture block.
7. The vertical force detecting assembly according to claim 6, wherein a T-shaped connecting portion is disposed at a lower end of the sensor, a groove corresponding to the T-shaped connecting portion is formed in the lower fixing block, and the T-shaped connecting portion is configured to extend into the groove; the vertical force detection assembly further comprises a limiting plate, the limiting plate is covered in the opening of the groove and connected with the lower fixing block, a limiting hole is formed in the limiting plate and configured to be sleeved on the T-shaped connecting portion, the limiting plate is used for limiting the T-shaped connecting portion to be upwards separated from the groove, and the T-shaped connecting portion and the groove bottom of the groove form the plane auxiliary structure.
8. The vertical force detecting assembly according to any one of claims 1 to 7, wherein a ball head is disposed at a lower end of the upper fixing block, the vertical force detecting assembly further comprises a bearing outer ring, the connecting block defines a mounting groove for receiving the bearing outer ring, the bearing outer ring is mounted in the mounting groove, the bearing outer ring comprises an inner spherical surface, and the ball head is configured to be in sliding fit with the inner spherical surface to form the spherical pair structure.
9. The vertical force sensing assembly of claim 8, further comprising a retaining ring configured to be secured to a groove wall of the mounting groove to retain the bearing cup within the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023200166.8U CN213902600U (en) | 2020-12-25 | 2020-12-25 | Vertical force detection assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023200166.8U CN213902600U (en) | 2020-12-25 | 2020-12-25 | Vertical force detection assembly |
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| CN213902600U true CN213902600U (en) | 2021-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526802A (en) * | 2022-01-25 | 2022-05-24 | 奥佳华智能健康科技集团股份有限公司 | Massage chair weight detection module |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526802A (en) * | 2022-01-25 | 2022-05-24 | 奥佳华智能健康科技集团股份有限公司 | Massage chair weight detection module |
| CN114526802B (en) * | 2022-01-25 | 2024-01-30 | 奥佳华智能健康科技集团股份有限公司 | Massage armchair weight detection module |
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