CN215841420U

CN215841420U - Running board displacement sensor

Info

Publication number: CN215841420U
Application number: CN202121685770.6U
Authority: CN
Inventors: 李光明; 方恬
Original assignee: Zhejiang Lijiujia Sports Equipment Co ltd
Current assignee: Zhejiang Lijiujia Sports Equipment Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-02-18
Anticipated expiration: 2031-07-23

Abstract

The utility model relates to the technical field of running machines and discloses a running board displacement sensor which comprises a sensor supporting seat arranged on a running platform, wherein a lifting rod is vertically arranged on the sensor supporting seat in a lifting way, one end of the lifting rod, which is far away from the sensor supporting seat, is abutted against or in clearance fit with the bottom of a running board, and a displacement sensing device is arranged between the lifting rod and the sensor supporting seat.

Description

Running board displacement sensor

Technical Field

The utility model relates to the technical field of treadmills, in particular to a running board displacement sensor.

Background

The treadmill is the body-building equipment that family and gymnasium were equipped with always, the user runs on running pedal and can take exercise, traditional treadmill adopts the shock pad shock attenuation, elastic deformation ability by rubber material itself provides the cushioning effect, but the crowd of different weights is inconsistent to the cushioning property demand of treadmill, the crowd of cushioning effect in order to adapt to different weights can't be adjusted to the shock pad, consequently, cushioning property adjustable shock pad has appeared, but this type of shock pad need weigh earlier when using, again according to the people for adjusting cushioning property of weight, the cushioning effect is through people for judging and adjusting, the error is great, can lead to running platform soft or hard degree and weight not accord with and arouse the knee damage, and many people use in turn then need to adjust repeatedly, and complex operation, consequently, the treadmill according to weight automatically regulated cushioning property has appeared.

Chinese patent with application number CN201520960494.8 discloses a but treadmill of automatically regulated race platform buffering hardness, including main support and race platform, be equipped with the running board on the race platform, the running board is provided with soft rubber running belt outward, run platform bottom one end and be equipped with at least a set of gasbag shock attenuation adjusting device, gasbag shock attenuation adjusting device includes main gasbag, the air pump, pressure sensor and electronic control system, the air pump is connected to main gasbag, pressure sensor sets up in the inside or race platform bottom of main gasbag, pressure sensor and air pump are connected to electronic control system, electronic control system connects main gasbag.

This treadmill is in the use, the user stands on running the platform, electronic control system utilizes pressure sensor to record user's weight information, then control the air pump according to the weight condition and give the main gasbag pressurization or reduce pressure and adjust the buffering effect of running the platform, but pressure sensor is fixed to be set up and with the board butt of running, the user can make the board deformation of running produce decurrent displacement volume when using the treadmill, pressure sensor is in long-term collision with the butt of running the board, can lead to both impaired under the extruded condition, shorten running board or pressure sensor's life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a running board displacement sensor, which prolongs the service life of a running board and the sensor on the premise of ensuring the sensing function.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a running board displacement sensor, is including setting up the sensor support seat on running the platform, and vertical lift is provided with a lifter on the sensor support seat, and the lifter is kept away from the one end of sensor support seat and the bottom butt or the clearance fit of running the board, is provided with displacement sensing device between lifter and the sensor support seat.

By adopting the scheme, compared with the prior art that the pressure sensor is fixedly arranged and is abutted against the running board, the running board can be deformed to generate a downward displacement when a user uses the treadmill, the abutting part of the pressure sensor and the running board can cause the pressure sensor and the running board to be damaged under the conditions of long-term collision and extrusion, and the service life of the running board or the pressure sensor is shortened, the scheme adopts a mode of matching the displacement sensing device and the lifting rod to realize sensing, the running board is deformed by pressure to generate the downward displacement, the lifting rod moves downwards under the extrusion action of the running board to transfer the displacement generated by the running board to the displacement sensing device to cause signal change, the electronic control system receives the signal change to convert the signal change into the weight information of the user, and then controls the air pump to pressurize or depressurize the main air bag according to the weight condition to adjust the buffer effect of the running table, because the lifter moves along with the deformation of running board, avoided the damage that causes because of fixed setting and the long-term collision of running board, extrusion, the life of extension sensor and running board.

Furthermore, the displacement sensing device comprises a potentiometer fixedly arranged in the sensor supporting seat, and the potentiometer comprises a resistor vertically and fixedly arranged on the inner wall of the sensor supporting seat and an electric brush, wherein one end of the electric brush is vertically and vertically arranged to be in contact with the resistor in a sliding fit manner, and the other end of the electric brush is fixedly or detachably connected with the lifting rod.

By adopting the scheme, the electric brush is connected with the lifting rod, so that the electric brush moves along with the lifting rod, the lifting rod transmits the displacement generated by the running plate to the electric brush, the electric brush moves relative to the resistor body to cause the change of signals such as resistance, voltage and the like, and the electronic control system receives the signal change and converts the signal change into the weight of a user to carry out the next operation.

Furthermore, a limiting structure for limiting the lifting rod to be separated from the sensor supporting seat is arranged between the lifting rod and the sensor supporting seat.

By adopting the scheme, the limiting structure is arranged to limit the lifting rod on the sensor supporting seat all the time, so that the failure of the sensor caused by the separation of the lifting rod and the sensor supporting seat is avoided.

Furthermore, the limit structure comprises a limit block which is arranged on the outer wall of one end, close to the electric brush, of the lifting rod in an outward protruding mode and a limit hole which is arranged on the sensor support seat and is only used for the lifting rod to pass through.

By adopting the scheme, the limiting block can not pass through the limiting hole, so the lifting rod is always limited on the sensor supporting seat.

Furthermore, a reset structure for driving the lifting rod to rise is arranged between the lifting rod and the sensor supporting seat.

Adopt above-mentioned scheme, the time and the position that reset of lifter are all difficult when comparing in manual pulling lift lifter are reset and are controlled, and reset structure orders about the lifter automatic rising and resets, and the time is more accurate with the position.

Furthermore, the reset structure comprises a mounting plate arranged at one end of the lifting rod far away from the sensor supporting seat and a spring fixedly arranged between the mounting plate and the sensor supporting seat.

By adopting the scheme, the mounting plate descends along with the descending rod when the descending rod descends, the spring is extruded and deformed to generate elastic force, and when the pressure on the ascending rod disappears, the ascending rod automatically resets under the action of the elastic force of the spring.

Furthermore, a guide structure for driving the lifting rod to perform linear motion is arranged between the mounting plate and the sensor supporting seat.

Adopt above-mentioned scheme, guide structure guarantees that the lifter carries out vertical lift along the straight line, makes the displacement volume transmission that the board deformation of running produced more accurate, and can avoid the lifter distortion deformation, prolongs its life.

Furthermore, the guide structure includes a guide hole formed in the sensor support base and a guide rod vertically disposed on one side of the mounting plate close to the sensor support base and inserted into the guide hole for guiding.

By adopting the scheme, the guide rods are inserted and matched with the guide holes in a guide way to realize that the lifting rod vertically lifts along a straight line.

Furthermore, the surface of the mounting plate is coated with an elastic protective layer.

Adopt above-mentioned scheme, wearing and tearing when reducing mounting panel and running board butt prolong life.

Further, when the brush can be dismantled with the lifter and be connected, be provided with detachable construction between brush and the lifter, detachable construction includes the power supply brush interference male recess that sets up in the one end that the lifter is close to the brush.

By adopting the scheme, one end of the electric brush, which is far away from the resistor body, can be inserted into the groove, and is in interference fit with the groove, so that the electric brush is detachably connected with the lifting rod, the electric brush moves along with the lifting rod, and the replacement of the potentiometer or the lifting rod is convenient through the detachable structure connection.

Compared with the prior art, the utility model has the following beneficial effects: adopt displacement sensing device and lifter complex mode to realize the sensing, the running board receives pressure to take place deformation and produces the downward displacement volume, the lifter moves down under the extrusion of running board and transmits the displacement volume that the running board produced for the brush, the brush removes this displacement volume for the resistive element, arouse resistance, the change of signals such as voltage, electronic control system receives the signal change and turns into user's weight information with it, then control the air pump according to the weight condition and give the cushion effect that the air bag pressurization or decompression adjusted the race platform, because the lifter removes along with the deformation of running board, avoided because of fixed setting with the long-term collision of running board, the damage that the extrusion led to the fact, the life of extension sensor and running board.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an isometric view of a running board displacement sensor according to the present invention;

FIG. 2 is a top view of a running board displacement sensor according to the present invention;

fig. 3 is a sectional view taken at a-a in fig. 2.

In the figure: 1. a sensor holder; 2. a lifting rod; 3. a potentiometer; 301. a resistor body; 302. an electric brush; 4. a limiting block; 5. a limiting hole; 6. mounting a plate; 7. a spring; 8. a guide hole; 9. a guide bar; 10. an elastic protective layer; 11. and (4) a groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Examples

A running board displacement sensor, refer to fig. 1 to 3, comprising a sensor support base 1, the sensor support base 1 is fixedly arranged on a running platform and is positioned below a running board, a limit hole 5 is arranged on the sensor support base 1, a lifting rod 2 is vertically arranged in the limit hole 5, one end of the lifting rod 2 is positioned in the sensor support base 1, the other end of the lifting rod passes through the limit hole 5 and is positioned outside the sensor support base 1, a mounting plate 6 is arranged on one end of the lifting rod 2 positioned outside the sensor support base 1, the mounting plate 6 is abutted against or in clearance fit with the bottom of the running board, the surface of the mounting plate 6 is coated with an elastic protective layer 10, the abrasion of the mounting plate 6 when abutted against the running board is reduced, the service life is prolonged, a spring 7 is fixedly arranged between the mounting plate 6 and the sensor support base 1, the spring 7 is sleeved on the lifting rod 2 in the embodiment, the mounting plate 6 descends along with the descending of the lifting rod 2, spring 7 extrusion deformation produces elasticity, and pressure on lifter 2 disappears, and lifter 2 automatic re-setting under the spring 7 elastic force effect, and spacing hole 5 only supplies lifter 2 to pass through, and lifter 2 is located outside protruding stopper 4 that is equipped with on the outer wall of the inside one end of sensor support seat 1, because stopper 4 can't pass through spacing hole 5 to avoid lifter 2 to break away from sensor support seat 1.

A potentiometer 3 (the potentiometer 3 can adopt a potentiometer with the model number KTL of Shenzhen minox electronics Limited) is arranged in the sensor supporting seat 1, a resistor body 301 in the potentiometer 3 is vertically fixed on the inner wall of the sensor supporting seat 1, one end of an electric brush 302 in the potentiometer 3 is in contact sliding fit with the resistor body 301, the other end of the electric brush is fixed or detachably arranged on the lifting rod 2, the running board generates different deformations according to different body weights, so as to generate different displacement amounts, the lifting rod 2 moves downwards under the extrusion action of the running board to transmit the displacement amount generated by the running board to the electric brush 302, the electric brush 302 moves relative to the resistor body 301 by the displacement amount to cause the change of signals such as resistance, voltage and the like, an electronic control system receives the signal change to convert the signal into the body weight information of a user, and then controls an air pump to pressurize or depressurize a main air bag according to adjust the buffer effect of the running platform, the related signal control between the potentiometer 3 and the electronic control system is realized by logic programming, which does not belong to the scope of the utility model, and the related logic programming belongs to the prior art, and is not described herein.

Be provided with guiding hole 8 on the sensor support seat 1, one side that mounting panel 6 is close to sensor support seat 1 is provided with perpendicularly and alternates complex guide arm 9 with 8 direction of guiding hole, guarantee that lifter 2 carries out vertical lift along the straight line, the displacement volume transmission that makes the board deformation of running produce is more accurate, lifter 2 is close to the one end of brush 302 and is provided with recess 11, the one end that the resistive element 301 was kept away from to brush 302 can insert in recess 11, and with 11 interference fit of recess, realize brush 302 and lifter 2's dismantlement and be connected.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a running board displacement sensor, is including setting up sensor support seat (1) on running the platform, its characterized in that: the sensor supporting seat (1) is vertically lifted and arranged with a lifting rod (2), one end of the lifting rod (2) far away from the sensor supporting seat (1) is abutted against or in clearance fit with the bottom of the running board, and a displacement sensing device is arranged between the lifting rod (2) and the sensor supporting seat (1).

2. A running board displacement sensor according to claim 1, wherein: the displacement sensing device comprises a potentiometer (3) fixedly arranged in a sensor supporting seat (1), wherein the potentiometer (3) comprises a resistor body (301) vertically and fixedly arranged on the inner wall of the sensor supporting seat (1) and an electric brush (302) which is vertically and vertically arranged, one end of the electric brush is in contact sliding fit with the resistor body (301), and the other end of the electric brush is fixed with a lifting rod (2) or is connected with the lifting rod through a detachable structure.

3. A running board displacement sensor according to claim 2, wherein: a limiting structure for limiting the separation of the lifting rod (2) from the sensor supporting seat (1) is arranged between the lifting rod (2) and the sensor supporting seat (1).

4. A running board displacement sensor according to claim 3, wherein: the limiting structure comprises a limiting block (4) which is arranged on the outer wall of one end, close to the electric brush (302), of the lifting rod (2) in an outward protruding mode and a limiting hole (5) which is formed in the sensor supporting seat (1) and only allows the lifting rod (2) to pass through.

5. A running board displacement sensor according to claim 1, wherein: a reset structure for driving the lifting rod (2) to rise is arranged between the lifting rod (2) and the sensor supporting seat (1).

6. A running board displacement sensor according to claim 5, wherein: the reset structure comprises a mounting plate (6) arranged at one end of the lifting rod (2) far away from the sensor supporting seat (1) and a spring (7) fixedly arranged between the mounting plate (6) and the sensor supporting seat (1).

7. A running board displacement sensor according to claim 6, wherein: a guide structure for driving the lifting rod (2) to do linear motion is arranged between the mounting plate (6) and the sensor supporting seat (1).

8. A running board displacement sensor according to claim 7, wherein: the guide structure comprises a guide hole (8) formed in the sensor supporting seat (1) and a guide rod (9) which is vertically arranged on one side, close to the sensor supporting seat (1), of the mounting plate (6) and is in guide penetrating fit with the guide hole (8).

9. A running board displacement sensor according to claim 6, wherein: the surface of the mounting plate (6) is coated with an elastic protective layer (10).

10. A running board displacement sensor according to claim 2, wherein: the detachable structure comprises a groove (11) which is arranged at one end of the lifting rod (2) close to the electric brush (302) and used for the interference insertion of the electric brush (302).