Multi-point close-range sensor

Abstract

The utility model discloses a multipoint close-range sensor, relates to the distance sensor technical field, including shell and distance sensor, the top of shell is equipped with the circular groove that allows the distance sensor to go up and down and pass, the side wall of circular groove is equipped with the recovery groove, the inside of recovery groove is fixedly connected with the air bag, and the air bag is equipped with the air bag. A circular groove is formed in the shell, a partition plate is arranged in the shell in a sliding mode, the partition plate divides the interior of the shell into a storage cavity and a gas cavity, the storage cavity communicates with the circular groove, a spring is arranged in the gas cavity, one end of the spring is fixedly connected to the partition plate, and the other end of the spring is fixedly connected to the inner wall of the gas cavity. According to the multi-point close-range sensor, by arranging the partition plate, the gas channel, the recovery groove and other structures, when the distance sensor is recovered to the interior of the shell, the air bag expands and becomes large, and the circular groove is closed, so that the distance sensor is protected, and meanwhile dust is prevented from entering the interior of the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of distance sensors, in particular to a multi-point short-distance sensor. Background Art

[0002] A distance sensor is a sensor that uses the principle of "time of flight method" to measure distance to detect the distance of an object. The "time of flight method" emits a very short light pulse and measures the time from the emission of the light pulse to the reflection of the object. The distance to the object is calculated by measuring the time interval.

[0003] For example, the patent named: An integrated distance sensor (patent application number: CN202221669923.2) discloses an integrated distance sensor. By using a motor to drive the screw shaft to rotate forward, the distance sensor is driven to extend out of the housing, so that the distance sensor can be moved to a suitable height position for measurement and use, which is convenient for meeting different distance measurement needs. After the distance measurement is completed, the motor is used to drive the screw shaft to rotate in the opposite direction until the distance sensor is completely retracted into the housing, so that the distance sensor can be stored and protected to prevent the distance sensor from being exposed to the outside world and easily damaged. After the distance sensor is recovered, the top of the housing is still in an open state, and there is still a risk of damage, and dust can easily enter the interior of the housing.

[0004] Therefore, it is necessary to propose a multi-point proximity sensor to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a multi-point proximity sensor to solve the problem that after the proximity sensor is recovered, the top of the casing is still in an open state, there is still a hidden danger of collision and damage, and dust is easy to enter the interior of the casing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-point proximity sensor, comprising a shell and a distance sensor, a circular groove for the distance sensor to be lifted and lowered is provided on the top of the shell, a recovery groove is provided on the side wall of the circular groove, an air bag is fixedly connected inside the recovery groove, a partition is slidably provided inside the shell, the partition divides the inside of the shell into a storage chamber and a gas chamber, the storage chamber is connected to the circular groove, a spring is provided inside the gas chamber, one end of the spring is fixedly connected to the partition, and the other end of the spring is fixedly connected to the inner wall of the gas chamber, a gas channel is provided on the side wall of the shell, the gas chamber is connected to the air bag through the gas channel, a support plate is provided inside the storage chamber, the support plate is fixedly installed on the bottom of the distance sensor, the support plate cooperates with the partition, and a driving component for driving the support plate to move up and down is provided on the shell.

[0007] Preferably, both sides of the inner wall of the shell are provided with sliding grooves, the interior of the sliding grooves is slidably connected with an upper sliding block, and the upper sliding block is fixedly connected to the supporting plate.

[0008] Preferably, a lower slider is slidably connected inside the slide groove, and the lower slider is fixedly connected to the partition.

[0009] Preferably, the driving assembly includes a threaded rod and a motor, the threaded rod is rotatably connected to the shell and distributed along the height direction of the shell, the motor is fixedly connected to the top of the shell, and the threaded rod is fixedly connected to the driving shaft of the motor.

[0010] Preferably, a circular hole for the threaded rod to pass through is opened inside the partition.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model provides a partition, a gas channel, a recovery groove and other structures. When the distance sensor is recovered to the inside of the shell, the airbag expands and becomes larger, and the circular groove is closed, thereby protecting the distance sensor and preventing dust from entering the inside of the shell;

[0013] 2. The height of the distance sensor extending from the shell can be flexibly adjusted to meet the distance measurement of multiple points. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the multi-point short-distance sensor of the utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the housing, support plate and distance sensor of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the shell, partition and gas channel of the utility model.

[0017] In the figure: 1. Shell; 2. Distance sensor; 3. Partition; 4. Storage chamber; 5. Gas chamber; 6. Gas channel; 7. Recovery tank; 8. Airbag; 9. Spring; 10. Support plate; 11. Slide groove; 12. Upper slider; 13. Threaded rod; 14. Motor; 15. Round hole; 16. Lower slider; 17. Round groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1 to Figure 3 The multi-point proximity sensor shown in the figure comprises a housing 1 and a distance sensor 2. The top of the housing 1 is provided with a circular groove 17 for the distance sensor 2 to pass through when being lifted or lowered. A recovery groove 7 is provided on the side wall of the circular groove 17, and an air bag 8 is fixedly connected to the interior of the recovery groove 7.

[0020] When the distance sensor 2 needs to be used, the airbag 8 can be recovered to the inside of the recovery groove 7 without affecting the extension of the distance sensor 2; after the use of the distance sensor 2, the distance sensor 2 is recovered to the inside of the shell 1, and the airbag 8 expands and becomes larger, and the circular groove 17 is closed, thereby protecting the distance sensor 2 and preventing dust from entering the inside of the shell 1.

[0021] A partition 3 is slidably provided inside the housing 1, and the partition 3 divides the inside of the housing 1 into a storage chamber 4 and a gas chamber 5. The storage chamber 4 is connected to the circular groove 17. A spring 9 is provided inside the gas chamber 5, one end of the spring 9 is fixedly connected to the partition 3, and the other end of the spring 9 is fixedly connected to the inner wall of the gas chamber 5. A gas channel 6 is provided on the side wall of the housing 1, and the gas chamber 5 is connected to the airbag 8 through the gas channel 6. A support plate 10 is provided inside the storage chamber 4, and the support plate 10 is fixedly installed at the bottom of the distance sensor 2, and the support plate 10 cooperates with the partition 3. When the support plate 10 slides toward the bottom of the shell 1, it will squeeze the partition 3 to move downward, and the gas inside the gas chamber 5 will be transported to the inside of the airbag 8 through the gas channel 6, causing the airbag 8 to expand and become larger; when the support plate 10 slides toward the top of the shell 1, the partition 3 is separated from the squeezing of the support plate 10 and slides and resets under the action of the restoring elastic force of the spring 9, the gas chamber 5 becomes larger, causing the airbag 8 to shrink to the inside of the recovery groove 7, without affecting the extension of the distance sensor 2.

[0022] In order to improve the sliding stability of the support plate 10 , sliding grooves 11 are provided on both sides of the inner wall of the housing 1 , and an upper slider 12 is slidably connected inside the sliding groove 11 , and the upper slider 12 is fixedly connected to the support plate 10 .

[0023] To ensure the sealing of the gas chamber 5, the interior of the slide groove 11 is slidably connected with a lower slider 16, and the lower slider 16 is fixedly connected to the partition 3. When in use, rubber pads can be arranged between the partition 3 and the inner wall of the shell 1, and between the lower slider 16 and the slide groove 11 to improve the sealing.

[0024] The shell 1 is provided with a driving assembly for driving the support plate 10 to move up and down, and the driving assembly includes a threaded rod 13 and a motor 14. The threaded rod 13 is rotatably connected to the shell 1 and is distributed along the height direction of the shell 1. The motor 14 is fixedly connected to the top of the shell 1, and the threaded rod 13 is fixedly connected to the driving shaft of the motor 14.

[0025] A circular hole 15 is provided inside the partition plate 3 for the threaded rod 13 to pass through. When in use, a sealing ring may be provided at the circular hole 15 to ensure the sealing of the gas chamber 5 .

[0026] When working, the motor 14 drives the threaded rod 13 to rotate, so that the support plate 10 slides toward the bottom end of the shell 1 to realize the recovery of the distance sensor 2. When the support plate 10 contacts and squeezes the partition plate 3 to move downward, the gas inside the gas chamber 5 is transported to the inside of the airbag 8 through the gas channel 6, so that the airbag 8 expands and enlarges, closing the circular groove 17, thereby protecting the distance sensor 2 and preventing dust from entering the inside of the shell 1.

[0027] When the airbag 8 starts to expand, the top end of the distance sensor 2 has been retracted into the interior of the housing 1 .

[0028] The motor 14 drives the threaded rod 13 to rotate in the opposite direction, so that when the support plate 10 slides toward the top of the shell 1, the partition 3 breaks away from the squeezing of the support plate 10 and slides back to its original position under the restoring elastic force of the spring 9. The gas chamber 5 becomes larger, and the gas inside the airbag 8 is sucked through the gas channel 6, so that the airbag 8 shrinks to the inside of the recovery groove 7 without affecting the extension of the distance sensor 2.

[0029] Moreover, the height of the distance sensor 2 extending from the housing 1 can be flexibly adjusted to meet the distance measurement of multiple points and is not limited to a certain height. At the same time, considering that the height adjustment distance of the distance sensor 2 is limited, the utility model is particularly suitable for close-range distance measurement. Even if the extension height is slightly adjusted, the distance measurement position will change significantly.

Claims

1. A multi-point proximity sensor, comprising a housing (1) and a distance sensor (2), characterized in that: The top of the shell (1) is provided with a circular groove (17) for the distance sensor (2) to pass through when being lifted or lowered; a recovery groove (7) is provided on the side wall of the circular groove (17); an air bag (8) is fixedly connected to the interior of the recovery groove (7); a partition (3) is slidably provided inside the shell (1); the partition (3) divides the interior of the shell (1) into a storage chamber (4) and a gas chamber (5); the storage chamber (4) is connected to the circular groove (17); a spring (9) is provided inside the gas chamber (5); one side of the spring (9) is provided with a spring (9); The end of the spring (9) is fixedly connected to the partition (3), the other end of the spring (9) is fixedly connected to the inner wall of the gas chamber (5), a gas channel (6) is opened on the side wall of the shell (1), the gas chamber (5) is connected to the airbag (8) through the gas channel (6), a support plate (10) is arranged inside the storage chamber (4), the support plate (10) is fixedly installed at the bottom of the distance sensor (2), the support plate (10) cooperates with the partition (3), and a driving component for driving the support plate (10) to move up and down is arranged on the shell (1).

2. A multi-point proximity sensor according to claim 1, characterized in that: Slide grooves (11) are provided on both sides of the inner wall of the housing (1), an upper slide block (12) is slidably connected inside the slide groove (11), and the upper slide block (12) is fixedly connected to the support plate (10).

3. A multi-point proximity sensor according to claim 2, characterized in that: A lower slider (16) is slidably connected inside the slide groove (11), and the lower slider (16) is fixedly connected to the partition plate (3).

4. A multi-point proximity sensor according to claim 3, characterized in that: The driving assembly comprises a threaded rod (13) and a motor (14); the threaded rod (13) is rotatably connected to the housing (1) and is distributed along the height direction of the housing (1); the motor (14) is fixedly connected to the top of the housing (1); and the threaded rod (13) is fixedly connected to the driving shaft of the motor (14).

5. A multi-point proximity sensor according to claim 4, characterized in that: A circular hole (15) is provided inside the partition (3) for the threaded rod (13) to pass through.

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