Sitting posture reminding device and seat

Abstract

A sitting posture reminding device comprises a U-shaped support, a movable joint clamping base, a distance measuring unit, an alarm and a processor. The U-shaped support comprises a cross beam and two stand columns perpendicularly connected with the two ends of the cross beam respectively. The movable joint clamping base comprises a sleeve, a clamping part and a movable joint located between the sleeve and the clamping part. The number of the movable joint clamping seats is two, and the two stand columns are installed in the sleeves on the two movable joint clamping seats correspondingly. A plurality of distance measuring units are installed on the side face of the cross beam in the reverse length direction of the cross beam and electrically connected with a processor, and the processor is electrically connected with an alarm. Compared with the prior art, the clamping device can be clamped on any seat and is flexible to use. Through the plurality of distance measuring units which are transversely arranged, not only can head lowering alarm be realized, but also head leaning alarm can be realized. By arranging the pyroelectric infrared probe, whether a user sits on the seat or not can be detected, the sitting posture reminding function is started only when the user sits on the seat, and more energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent furniture, and particularly relates to a sitting posture reminder device and a seat. Background Art

[0002] Research shows that incorrect sitting postures, excessive eye use time, and looking at things too close to the eyes are the main causes of myopia. Therefore, developing good sitting postures when reading and writing is an effective way to prevent myopia among primary and middle school students. For this reason, seats for correcting sitting postures have emerged. However, these seats usually have ranging sensors installed on the backrests, and the correction devices are integrated with the seats, resulting in poor versatility. Summary of the Invention

[0003] The utility model provides a sitting posture reminder device and a seat to solve the technical problem that the correction device of the existing sitting posture correction seat is integrated with the seat, resulting in poor versatility.

[0004] To achieve the above object, the utility model adopts the following technical solutions.

[0005] On the one hand, a sitting posture reminder device is provided, which includes a U-shaped bracket, a movable joint card seat, a ranging unit, an alarm, and a processor;

[0006] The U-shaped bracket includes a cross beam and two columns perpendicularly connected to both ends of the cross beam respectively;

[0007] The movable joint card seat includes a sleeve, a clamping part, and a movable joint located between the sleeve and the clamping part; there are two movable joint card seats, and the two columns are respectively installed in the sleeves of the two movable joint card seats;

[0008] A number of the ranging units are installed on the side surface of the cross beam along its length direction, each ranging unit is electrically connected to the processor, and the processor is electrically connected to the alarm.

[0009] In some embodiments, a pyroelectric infrared probe is further installed on the cross beam. The pyroelectric infrared probe and the ranging unit are on the same side of the cross beam, and the pyroelectric infrared probe is electrically connected to the processor.

[0010] In some embodiments, a one-way sleeve is sleeved on the pyroelectric infrared probe. The one-way sleeve is tubular, and the outer end of the one-way sleeve extends beyond the detection end of the pyroelectric infrared probe.

[0011] In some embodiments, the clamping part includes two clamping plates arranged oppositely, and a first fixing screw is installed on one of the clamping plates.

[0012] In some embodiments, a second fixing screw is installed on the sleeve.

[0013] In some embodiments, the ranging unit includes a first ranging unit located in the middle of the crossbeam, and second and third ranging units respectively located on both sides of the first ranging unit.

[0014] In some embodiments, the distance between the second and third ranging units is less than the head width of the user.

[0015] In some embodiments, the ranging unit is an ultrasonic sensor.

[0016] In some embodiments, a light intensity detection unit is further installed on the U-shaped bracket, and the light intensity detection unit is electrically connected to the processor.

[0017] On the other hand, a seat is provided, which includes a seat surface, chair legs and a backrest, and the above-mentioned sitting posture reminder device is installed on the backrest.

[0018] The utility model has at least the following technical effects or advantages:

[0019] 1. The sitting posture reminder device of the utility model can be clamped on any seat, and is flexible to use.

[0020] 2. The sitting posture reminder device of the utility model can not only realize head-down alarm, but also realize head-turning alarm through multiple ranging units arranged horizontally.

[0021] 3. The sitting posture reminder device of the utility model can detect whether there is a user sitting on the seat by configuring a pyroelectric infrared probe, and only when there is a user sitting on the seat, the sitting posture reminder function is turned on, which is more energy-saving. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the sitting posture reminder device in an embodiment of the utility model;

[0023] Figure 2 It is a schematic structural diagram of the U-shaped bracket in an embodiment of the utility model;

[0024] Figure 3 It is a schematic circuit structural diagram of the sitting posture reminder device in an embodiment of the utility model;

[0025] Figure 4 It is an installation schematic diagram of the one-way sleeve in an embodiment of the utility model;

[0026] Figure 5 It is an installation schematic diagram of the sitting posture reminder device in an embodiment of the utility model. Detailed Embodiments

[0027] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments.

[0028] Refer to Figures 1 - 4 , a sitting posture reminder device, comprising a U-shaped bracket 1, a movable joint card seat, a light intensity detection unit 2, a ranging unit 3, an alarm 4 and a processor 5.

[0029] The U-shaped bracket 1 includes a cross beam and two columns perpendicularly connected to both ends of the cross beam respectively.

[0030] The movable joint card seat includes a sleeve 21, a clamping part 22 and a movable joint 23 located between the sleeve 21 and the clamping part 22. There are two movable joint card seats, and the two columns are respectively installed in the sleeves 21 of the two movable joint card seats. Among them, the clamping part 22 includes two relatively arranged clamping plates, and a first fixing screw 62 is installed on one of the clamping plates for fastening the clamping plate to the backrest of the seat. A second fixing screw 61 is installed on the sleeve 21 for adjusting the height of the U-shaped bracket 1.

[0031] On one side of the cross beam, three ranging units 3 and a pyroelectric infrared detector 7 are installed along the length direction. The three ranging units 3 include a first ranging unit located in the middle of the cross beam, and a second and a third ranging unit respectively located on both sides of the first ranging unit. The distance between the second and third ranging units is less than the head width of the user. The three ranging units 3, the pyroelectric infrared detector 7 are respectively electrically connected to the processor 5, and the processor 5 is electrically connected to the alarm 4. Preferably, a one-way sleeve 8 is sleeved on the pyroelectric infrared detector 7. The one-way sleeve 8 is tubular, and the outer end of the one-way sleeve 8 extends beyond the detection end of the pyroelectric infrared detector 7. By setting the one-way sleeve 8, the pyroelectric infrared detector 7 can only receive the infrared rays radiated by the human body in the seat direction, avoiding the power consumption caused by the interference of pyroelectric infrared rays in other directions. Specifically, the ranging unit can be an ultrasonic sensor. A light intensity detection unit 2 is installed on the column, and the light intensity detection unit 2 is electrically connected to the processor 5. Specifically, the light intensity detection unit 2 can be a photoresistor.

[0032] During use, as Figure 5 shown, use the clamping part 22 to install the sitting posture reminder device on the backrest of the seat 8, and then tighten the first fixing screw 62. Then, according to the height of the user, adjust the angle of the U-shaped bracket 1 through the movable joint 23 and adjust the height of the U-shaped bracket 1. After adjustment, tighten the second fixing screw 61. After the adjustment is completed, the sitting posture reminder device can start to be used.

[0033] In use, if there is no user sitting on the seat and the pyroelectric infrared detector 7 does not detect the infrared signal radiated by the human body, the sitting posture reminder device is not activated. After the user sits down, the pyroelectric infrared detector 7 detects the infrared signal radiated by the human body, the sitting posture reminder device is activated, and the ranging unit 3 starts to work. When the detection values of all three ranging units 3 are greater than the distance set value, it indicates that the user is lowering the head, and the processor 5 controls the alarm 4 to emit a prompt sound to the user. When the detection value of the first ranging unit is less than the distance set value, but the detection value of the second ranging unit or the third ranging unit is greater than the distance set value, it indicates that the user's head is offset, and the processor 5 controls the alarm 4 to emit a prompt sound to the user. When the sitting posture reminder device is activated, the processor 5 also powers on the light intensity detection unit 2 and measures its terminal voltage. If the terminal voltage is less than the voltage set value, it indicates that the light is weak, and the alarm 4 gives a voice reminder to the user to turn on the room light or desk lamp so that the light reaches an intensity suitable for writing.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A sitting posture reminder device, characterized in that: It includes a U-shaped bracket, a movable joint holder, a distance measuring unit, an alarm and a processor; The U-shaped bracket includes a crossbeam and two columns vertically connected to both ends of the crossbeam; The movable joint holder includes a sleeve, a clamping portion, and a movable joint located between the sleeve and the clamping portion; there are two movable joint holders, and the two uprights are respectively installed in the sleeves on the two movable joint holders; A plurality of distance measuring units are installed on the side surface of the beam in the opposite direction along its length. Each distance measuring unit is electrically connected to the processor, and the processor is electrically connected to the alarm.

2. The sitting posture reminder device according to claim 1, characterized in that: A pyroelectric infrared probe is also installed on the crossbeam. The pyroelectric infrared probe and the distance measuring unit are located on the same side of the crossbeam. The pyroelectric infrared probe is electrically connected to the processor.

3. The sitting posture reminder device according to claim 2, characterized in that: A one-way sleeve is sleeved on the pyroelectric infrared probe. The one-way sleeve is tubular, and the outer end of the one-way sleeve extends beyond the detection end of the pyroelectric infrared probe.

4. The sitting posture reminder device according to any one of claims 1 to 3, characterized in that: The clamping portion includes two clamping plates arranged opposite to each other, and a first fixing screw is installed on one of the clamping plates.

5. The sitting posture reminder device according to any one of claims 1 to 3, characterized in that: A second fixing screw is installed on the sleeve.

6. The sitting posture reminder device according to any one of claims 1 to 3, characterized in that: The distance measuring unit includes a first distance measuring unit located in the middle of the beam, and a second distance measuring unit and a third distance measuring unit located on both sides of the first distance measuring unit respectively.

7. The sitting posture reminder device according to claim 6, characterized in that: The distance between the second and third distance measuring units is smaller than the width of the user's head.

8. The sitting posture reminder device according to any one of claims 1 to 3, characterized in that: The distance measuring unit is an ultrasonic sensor.

9. The sitting posture reminder device according to any one of claims 1 to 3, characterized in that: A light intensity detection unit is also installed on the U-shaped bracket, and the light intensity detection unit is electrically connected to the processor.

10. A chair comprising a seat, legs and a backrest, characterized in that: The chair back is equipped with a sitting posture reminder device as described in any one of claims 1 to 9.

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