Seat with weighing function

Abstract

The invention discloses a seat with a weighing function, which comprises a seat assembly, a seat leg assembly, a weighing assembly and a circuit board, the seat leg assembly is arranged at the bottom of the seat leg assembly, the seat leg assembly is provided with a connecting end, the weighing assembly comprises an elastic piece and a strain gauge, the elastic piece comprises an inner ring, an outer ring and an elastic part, the outer ring is sleeved on the periphery of the inner ring, and the strain gauge is arranged on the outer ring. One end of the elastic part is connected with the outer circumferential surface of the inner ring, the other end of the elastic part is connected with the inner circumferential surface of the outer ring, the inner ring sleeves the connecting end and is connected with the connecting end, the outer ring is connected with the seat assembly, the strain gauge is arranged on the elastic part and is used for collecting deformation signals of the elastic part, and the circuit board is electrically connected with the strain gauge. The circuit board is used for converting signals collected by the strain gauges into weighing data, the structure is simple, and the weight of a user can be accurately measured.

Description

Technical Field

[0001] The invention relates to the technical field of seats, and in particular to a seat with a weighing function. Background Art

[0002] Chairs play an important role in people's life, work, leisure and entertainment. People spend most of their time working and studying in chairs. Long-term sitting and lack of exercise can easily lead to weight soaring, which in turn leads to sub-health status. In order to enable people to monitor their weight data in real time, a chair with a weighing function that has a simple structure and accurate measurement is proposed. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a chair with a weighing function, which can accurately measure the weight of a user.

[0004] A seat with a weighing function according to an embodiment of the present invention comprises:

[0005] Seat assembly;

[0006] A chair leg assembly, mounted on the bottom of the chair leg assembly, the chair leg assembly having a connecting end;

[0007] A weighing assembly, comprising an elastic member and a strain gauge, wherein the elastic member comprises an inner ring, an outer ring and an elastic portion, wherein the outer ring is sleeved on the outer periphery of the inner ring, one end of the elastic portion is connected to the outer peripheral surface of the inner ring, and the other end of the elastic portion is connected to the inner peripheral surface of the outer ring, the inner ring is sleeved on the connecting end and connected to the connecting end, the outer ring is connected to the seat assembly, and the strain gauge is arranged on the elastic portion, and the strain gauge is used to collect deformation signals of the elastic portion;

[0008] A circuit board is electrically connected to the strain gauge, and the circuit board is used to convert the signal collected by the strain gauge into weighing data.

[0009] The seat with a weighing function according to the embodiment of the present invention has at least the following beneficial effects:

[0010] When the user weighs, the user sits on the seat assembly with both feet off the ground in a suspended state. The user's gravity is applied to the elastic part through the outer ring. Since the inner ring is sleeved with the connecting end, the elastic part can be deformed. On the one hand, it is convenient to assemble the weighing assembly to simplify the structure of the seat. On the other hand, since the strain gauge is installed on the elastic part, when the user weighs, the gravity exerted on the seat assembly is transmitted to the leg assembly through the outer ring-pop-up part-inner ring. The deformation of the elastic part is larger, so that the strain gauge can accurately measure the deformation of the elastic part, ensuring that the seat can accurately measure the user's weight.

[0011] According to some embodiments of the present invention, a plurality of the elastic parts are configured, and the plurality of the elastic parts are arranged at intervals along the circumference of the inner ring, and the strain gauges correspond to the elastic parts one by one.

[0012] According to some embodiments of the present invention, the seat with a weighing function further includes a fastener, the outer ring is provided with a through hole, the fastener is passed through the through hole and is threadedly connected to the seat assembly.

[0013] According to some embodiments of the present invention, default holes are defined between adjacent elastic portions, and along the circumference of the inner ring, the default holes are staggered with the through holes.

[0014] According to some embodiments of the present invention, the default hole is a waist-shaped hole or a round hole.

[0015] According to some embodiments of the present invention, the wall thickness of the inner ring is uniform, and / or the wall thickness of the outer ring is uniform.

[0016] According to some embodiments of the present invention, along the axial direction of the inner ring, the minimum thickness of the elastic portion is H 1 , the minimum thickness of the outer ring is H 2 , satisfying: 0.25≤H 1 / H 2 ≤0.5.

[0017] According to some embodiments of the present invention, the inner ring, the outer ring and the elastic portion are an integrated structure.

[0018] According to some embodiments of the present invention, the chair leg assembly includes a chair leg body and a pneumatic rod, wherein the fixed end of the pneumatic rod is connected to the chair leg body, and the connecting end is the movable end of the pneumatic rod.

[0019] According to some embodiments of the present invention, the chair foot body includes a support seat and a plurality of support feet, one end of the support seat is connected to the fixed end of the pneumatic rod, and the other end of the support seat is connected to the support foot, and the plurality of support feet are arranged at intervals along the circumference of the support seat.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a structural schematic diagram of a seat with a weighing function according to an embodiment of the present invention;

[0023] Figure 2 A top view of a seat with a weighing function according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Sectional view along line AA;

[0025] Figure 4 for Figure 3 A partial enlarged view of part B;

[0026] Figure 5 A schematic diagram of the structure of a weighing assembly according to an embodiment of the present invention;

[0027] Figure 6 A top view of a weighing assembly according to an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Sectional view along the CC line.

[0029] Reference numerals:

[0030] The seat assembly 100 , the leg assembly 200 , the leg body 210 , the support seat 211 , the leg 212 , the pneumatic rod 220 , the weighing assembly 300 , the through hole 301 , the default hole 302 , the elastic member 310 , the inner ring 311 , the outer ring 312 , the elastic part 313 , and the strain gauge 320 . DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In the related technology, seats play an important role in people's life, work, leisure and entertainment. People spend most of their time working and studying in seats. Long-term sitting and lack of exercise can easily lead to weight soaring, which in turn leads to sub-health status of the body. In order to enable people to monitor their weight data in real time, a seat with a weighing function that has a simple structure and accurate measurement is proposed.

[0036] Reference Figures 1 to 7 According to an embodiment of the present invention, a chair with a weighing function includes a seat assembly 100, a leg assembly 200, a weighing assembly 300 and a circuit board. The leg assembly 200 is installed at the bottom of the leg assembly 200, and the leg assembly 200 has a connecting end. The weighing assembly 300 includes an elastic member 310 and a strain gauge 320. The elastic member 310 includes an inner ring 311, an outer ring 312 and an elastic portion 313. The outer ring 312 is sleeved on the outer periphery of the inner ring 311, one end of the elastic portion 313 is connected to the outer peripheral surface of the inner ring 311, and the other end of the elastic portion 313 is connected to the inner peripheral surface of the outer ring 312. The inner ring 311 is sleeved on the connecting end and connected to the connecting end. The outer ring 312 is connected to the seat assembly 100, and the strain gauge 320 is arranged on the elastic member 311. The elastic part 313, the strain gauge 320 is used to collect the deformation signal of the elastic part 313, the circuit board is electrically connected to the strain gauge 320, and the circuit board is used to convert the signal collected by the strain gauge 320 into weighing data. In this way, by socketing the inner ring 311 with the connecting end, on the one hand, it is easy to assemble the weighing component 300 to simplify the structure of the seat, and on the other hand, since the strain gauge 320 is installed on the elastic part 313, when the user weighs, the gravity exerted on the seat assembly 100 is transmitted to the chair leg assembly 200 through the outer ring 312-the pop-up part-the inner ring 311, and the deformation amount generated by the elastic part 313 is larger, so that the strain gauge 320 can accurately measure the deformation amount of the elastic part 313, thereby ensuring that the seat can accurately measure the user's weight.

[0037] Specifically, when the user weighs, the user sits on the seat assembly 100 with both feet off the ground in a suspended state. The user's gravity is applied to the elastic part 313 through the outer ring 312. Since the inner ring 311 is sleeved with the connecting end, the elastic part 313 can be deformed. On the one hand, it is convenient to assemble the weighing assembly 300 to simplify the structure of the seat. On the other hand, since the strain gauge 320 is installed on the elastic part 313, when the user weighs, the gravity exerted on the seat assembly 100 is transmitted to the chair leg assembly 200 through the outer ring 312-pop-up part-inner ring 311. The deformation amount of the elastic part 313 is larger, so that the strain gauge 320 can accurately measure the deformation amount of the elastic part 313, ensuring that the seat can accurately measure the user's weight.

[0038] It should be noted that the circuit board includes a main control module, a communication module and a power supply. The main control module includes a control chip. The signal collected by the weighing device is transmitted to the main control module, and the active module converts the deformation signal into weighing data. The communication module is used for the seat to communicate with the user terminal and send the weighing data to the user terminal. Preferably, the communication module includes a Bluetooth module, and the user terminal can be an electronic device such as a smart phone or a tablet computer. The weighing data is sent to the user terminal through the communication module, and the user can view the weighing data on the application software of the terminal. Furthermore, the power supply is used to power the weighing seat, and the power supply can be a polymer battery.

[0039] Reference Figure 5 , Figure 6 In some embodiments of the present invention, four elastic parts 313 are configured, and the four elastic parts 313 are arranged at intervals along the circumference of the inner ring 311. The strain gauge 320 corresponds to the elastic part 313 one by one, which can reduce the error caused by the user's center of gravity not being in the center of the seat assembly, and can improve the measurement accuracy of the strain gauge 320.

[0040] Specifically, four elastic portions 313 are evenly spaced along the circumference of the inner ring 311, and four strain gauges 320 are configured accordingly. When a user weighs, the gravity borne by the outer ring 312 is transmitted to the inner ring 311 through the four elastic portions 313, which can reduce the error caused by the user's center of gravity not being in the center of the seat assembly, and can improve the measurement accuracy of the strain gauge 320.

[0041] Of course, in some other specific implementations, the elastic parts 313 may also be configured with two or three, etc., which is not limited here.

[0042] Reference Figure 5 , Figure 6In some embodiments of the present invention, the seat with a weighing function also includes a fastener, and the outer ring 312 is provided with a through hole 301. The fastener is passed through the through hole 301 and is threadedly connected to the seat assembly 100, so that the outer ring 312 and the seat assembly 100 are stably connected, which can be easily installed or disassembled to facilitate the inspection or maintenance of the seat.

[0043] Reference Figure 5 , Figure 6 In some embodiments of the present invention, a default hole 302 is defined between adjacent elastic portions 313 , and the default hole 302 is staggered with the through hole 301 along the circumference of the inner ring 311 , which can avoid the outer ring 312 from breaking, thereby increasing the service life of the elastic member 310 .

[0044] Specifically, along the circumference of the inner ring 311, the default hole 302 is located between two adjacent default holes 302, that is, the default hole 302 is close to the elastic part 313, and the position where the outer ring 312 is connected to the elastic part 313 has higher strength, which can avoid the outer ring 312 from breaking, thereby improving the service life of the elastic part 310.

[0045] Reference Figure 5 , Figure 6 In some embodiments of the present invention, the default hole 302 is a waist-shaped hole or a round hole, which can avoid the elastic part 313 from breaking, thereby increasing the service life of the elastic member 310.

[0046] Specifically, in the radial direction of the inner ring 311, from the inner ring 311 to the outer ring 312, the width of the elastic part 313 first decreases and then increases, which can ensure both the contact area between the elastic part 313 and the inner ring 311 and the contact area between the elastic part 313 and the outer ring 312, so as to improve the connection strength of the elastic part 313, avoid the breakage of the elastic part 313, and thus improve the service life of the elastic part 310.

[0047] It should be noted that the wires connected to the strain gauge 320 can be connected to the circuit board through the default hole 302 , which can facilitate the wiring of the strain gauge 320 .

[0048] In some embodiments of the present invention, the wall thickness of the inner ring 311 is uniform. In the circumferential direction of the inner ring 311 , the wall thickness at each position of the inner ring 311 is the same, which can ensure that the inner ring 311 is subjected to uniform force.

[0049] In some embodiments of the present invention, the wall thickness of the outer ring 312 is uniform. In the circumferential direction of the outer ring 312 , the wall thickness at each position of the outer ring 312 is the same, which can ensure that the inner ring 311 is subjected to uniform force.

[0050] Reference Figure 7In some embodiments of the present invention, along the axial direction of the inner ring 311, the minimum thickness of the elastic portion 313 is H1, and the minimum thickness of the outer ring 312 is H2, satisfying: 0.25≤H1 / H2≤0.5. On the one hand, it ensures that the elastic portion 313 has sufficient elasticity, and on the other hand, it can ensure that the elastic portion 313 can recover after deformation.

[0051] Specifically, if H1 / H2 is less than 0.25, the minimum thickness of the elastic part 313 is too small, and the elastic part 313 is prone to cracks after deformation, resulting in the elastic part 313 being unable to recover after deformation. If H1 / H2 is greater than 0.5, the minimum thickness of the elastic part 313 is too large, and when the user sits on the seat assembly 100, the elastic part 313 cannot produce a sufficiently large deformation, resulting in inaccurate measurement data of the strain gauge 320.

[0052] In some embodiments of the present invention, the inner ring 311 , the outer ring 312 and the elastic portion 313 are an integrated structure, which can reduce the number of molds to reduce the production cost of the molds, thereby reducing the production cost of the weighing assembly 300 .

[0053] Specifically, the inner ring 311 , the outer ring 312 and the elastic portion 313 are integrally formed by die-casting, which can reduce the number of molds, thereby reducing the production cost of the molds, thereby reducing the production cost of the weighing assembly 300 .

[0054] As another embodiment, the outer circumferential surface of the inner ring 311 and the inner circumferential surface of the outer ring 312 can be connected to the corresponding end of the elastic part 313 by welding, wherein the welding method includes but is not limited to resistance welding, laser welding or ultrasonic welding, which is not limited here.

[0055] Reference Figure 1 , Figure 2 In some embodiments of the present invention, the chair leg assembly 200 includes a chair leg body 210 and a pneumatic rod 220, the fixed end of the pneumatic rod 220 is connected to the chair leg body 210, and the connecting end is the movable end of the pneumatic rod 220, which can increase the height of the seat assembly 100 to suit users of different heights, thereby improving the versatility of the chair.

[0056] Specifically, the foot body 210 is in contact with the ground, and the movable end of the pneumatic rod 220 can rise or fall so that the seat assembly 100 can move up and down relative to the foot body 210. When the user is taller, the height of the seat assembly 100 can be raised by the pneumatic rod 220. When the user is shorter, the height of the seat assembly 100 can be lowered by the pneumatic rod 220 to adapt to users of different heights, thereby improving the versatility of the chair.

[0057] Reference Figure 1 , Figure 2 In some embodiments of the present invention, the chair foot body 210 includes a support seat 211 and a plurality of support feet, one end of the support seat 211 is connected to the fixed end of the gas pressure rod 220, and the other end of the support seat 211 is connected to the support foot, and the plurality of support feet are arranged at intervals along the circumference of the support seat 211. When the user sits at approximately the center position of the chair seat assembly 100, the user's weight can be more evenly distributed on each support foot 212.

[0058] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The present embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A seat with a weighing function, characterized in that: include: Seat assembly (100); A chair leg assembly (200) is installed at the bottom of the chair leg assembly (200), and the chair leg assembly (200) has a connecting end; A weighing assembly (300) comprises an elastic member (310) and a strain gauge (320), wherein the elastic member (310) comprises an inner ring (311), an outer ring (312) and an elastic portion (313), wherein the outer ring (312) is sleeved on the outer periphery of the inner ring (311), one end of the elastic portion (313) is connected to the outer peripheral surface of the inner ring (311), and the other end of the elastic portion (313) is connected to the inner peripheral surface of the outer ring (312), the inner ring (311) is sleeved on the connecting end and connected to the connecting end, the outer ring (312) is connected to the seat assembly (100), and the strain gauge (320) is arranged on the elastic portion (313), and the strain gauge (320) is used to collect deformation signals of the elastic portion (313); A circuit board is electrically connected to the strain gauge (320), and the circuit board is used to convert the signal collected by the strain gauge (320) into weighing data.

2. The seat with weighing function according to claim 1, characterized in that: A plurality of the elastic parts (313) are provided, and the plurality of the elastic parts (313) are arranged at intervals along the circumferential direction of the inner ring (311), and the strain gauges (320) correspond to the elastic parts (313) one by one.

3. The seat with weighing function according to claim 2, characterized in that: The seat with a weighing function also includes a fastener, the outer ring (312) is provided with a through hole (301), the fastener is passed through the through hole (301) and is threadedly connected to the seat assembly (100).

4. The seat with weighing function according to claim 3, characterized in that: A default hole (302) is defined between adjacent elastic portions (313), and along the circumference of the inner ring (311), the default hole (302) and the through hole (301) are staggered.

5. The seat with weighing function according to claim 4, characterized in that: The default hole (302) is a waist-shaped hole or a round hole.

6. The seat with weighing function according to claim 1, characterized in that: The wall thickness of the inner ring (311) is uniform, and / or the wall thickness of the outer ring (312) is uniform.

7. The seat with weighing function according to claim 1, characterized in that: Along the axial direction of the inner ring (311), the minimum thickness of the elastic portion (313) is H1, and the minimum thickness of the outer ring (312) is H2, satisfying: 0.25≤H1 / H2≤0.

5.

8. The seat with weighing function according to claim 1, characterized in that: The inner ring (311), the outer ring (312) and the elastic portion (313) are an integrated structure.

9. The seat with weighing function according to claim 1, characterized in that: The chair foot assembly (200) comprises a chair foot body (210) and a pneumatic rod (220), wherein the fixed end of the pneumatic rod (220) is connected to the chair foot body (210), and the connecting end is the movable end of the pneumatic rod (220).

10. The seat with weighing function according to claim 9, characterized in that: The chair foot body (210) comprises a support seat (211) and a plurality of support legs, one end of the support seat (211) is connected to the fixed end of the pneumatic rod (220), and the other end of the support seat (211) is connected to the support leg, and the plurality of support legs are arranged at intervals along the circumference of the support seat (211).

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