Laser sensor with water mist prevention structure

Abstract

The utility model discloses a laser sensor with a water mist prevention structure, which comprises a sensor body, the bottom of one side of the sensor body is connected with a connecting line, the outer side of the connecting line is provided with a limiting protection pipe, and the limiting protection pipe comprises a connecting pipe fitting and a plurality of movable pipe fittings. Threading cavities are formed in the connecting pipe fitting and the movable pipe fitting, a connecting wire body penetrates through the threading cavities, one side of the connecting pipe fitting is fixedly connected with a machine shell of the sensor body, movable cavities are formed in the other side of the connecting pipe fitting and one end of the movable pipe fitting, and the other end of the movable pipe fitting is connected with a ball joint. The ball joints are installed in the movable cavities, the multiple movable pipe fittings are movably connected through the ball joints and the connecting pipe fittings, one ends of the multiple movable pipe fittings are movably connected through the ball joints and the connecting pipe fittings, the threading cavities are communicated with the movable cavities, and the laser emitting end face of the sensor body is coated with a hydrophobic coating.

Description

Technical Field

[0001] This utility model belongs to the field of laser sensor technology, and specifically relates to a laser sensor with a waterproof and fog-proof structure. Background Technology

[0002] Laser sensors are widely used in industrial automation, robot navigation, measurement, and positioning. They work by emitting a laser beam and receiving the reflected light, calculating distance based on time or phase differences, thus achieving non-contact measurement. In practical applications, laser sensors need to be connected to a control system or other equipment via cables to transmit measurement data and receive power.

[0003] Existing laser sensor connectors typically feature complex multi-layered structures, including anti-interference and protective layers, to ensure signal transmission stability and connector durability. However, this design results in relatively thick connectors with a larger diameter compared to the laser sensor body. During laser sensor installation, the connectors often need to be bent to accommodate the installation space, as the sensor body requires precise positioning. While large-angle bends do not affect the connectors, prolonged small-angle bends can lead to fatigue of the internal wires, causing breakage or damage, affecting data transmission stability and sensor lifespan. Furthermore, water droplets and mist can easily accumulate on the laser emitter's mirror surface in the working environment, causing refraction of the emitted light and resulting in abnormal readings. Therefore, this invention proposes a waterproof and mist-resistant laser sensor that avoids water mist on the mirror while preventing breakage or damage to the connectors due to excessively small bending angles.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser sensor with a waterproof and fog-proof structure, comprising a sensor body, a connecting wire connected to the bottom of one side of the sensor body, a limit protection tube installed on the outside of the connecting wire, the limit protection tube comprising a connecting pipe and multiple movable pipes, both the connecting pipe and the movable pipes having a threading cavity inside, the connecting wire passing through the threading cavity, one side of the connecting pipe being fixedly connected to the housing of the sensor body, the other side of the connecting pipe and one end of the movable pipes having movable cavities, the other end of the movable pipes being connected to a ball joint, the ball joint being installed inside the movable cavity, the multiple movable pipes being movably connected to each other through the ball joint and the connecting pipe, one end of the multiple movable pipes being movably connected to the connecting pipe through the ball joint, the threading cavity and the movable cavity being interconnected, and a hydrophobic coating being applied to the laser emitting end surface of the sensor body.

[0006] As a preferred technical solution of this utility model, the multiple movable pipes are movably connected to form a chain structure through ball joints and movable cavities.

[0007] As a preferred embodiment of this utility model, the ball joint and the movable cavity are interference-fitted, and the connecting pipe, the movable pipe, and the ball joint are all made of PVC.

[0008] As a preferred embodiment of this utility model, the connecting pipe and the movable pipe are integrally formed with the corresponding ball joint.

[0009] As a preferred embodiment of this utility model, a sealing ring is filled between the threading cavity inside the connecting pipe and the wire body of the connecting wire.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] This utility model's laser sensor features a structure with a limiting protective tube sleeved on the outside of the connecting wire. This design utilizes the limiting protection between the tubes to prevent breakage or damage caused by excessively small bending angles in the connecting wire. Furthermore, it improves installation flexibility and sensor adaptability, thereby extending the lifespan of the laser sensor and ensuring stable data transmission. It boasts advantages such as simple structure, convenient installation, strong adaptability, and long service life, and has promising application prospects. Attached Figure Description

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the movable cavity of the movable pipe fitting in this utility model;

[0015] Figure 3 This is a schematic diagram of the ball joint structure of the movable tube fitting in this utility model;

[0016] In the diagram: 1. Sensor body; 2. Connecting wire; 3. Connecting pipe; 4. Movable pipe; 5. Wire passage cavity; 6. Movable cavity; 7. Ball joint; 8. Hydrophobic coating. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example

[0019] Please see Figure 1-3 This utility model provides the following technical solution: A laser sensor with a waterproof and fog-proof structure includes a sensor body 1. A connecting wire 2 is connected to the bottom of one side of the sensor body 1. A limit protection tube is installed on the outside of the connecting wire 2 to prevent excessive bending of the connecting wire 2. The limit protection tube includes a connecting pipe 3 and multiple movable pipes 4. A wire-passing cavity 5 is opened inside the connecting pipe 3 and the movable pipes 4. The wire body of the connecting wire 2 passes through the wire-passing cavity 5, and the wire-passing cavity 5 is used to accommodate the wire body of the connecting wire 2. One side of the connecting pipe 3 is fixedly connected to the housing of the sensor body 1. The connecting pipe 3 is used to connect the movable pipes 4 and the sensor body 1. The other side of the connecting pipe 3 is fixedly connected to the housing of the sensor body 1. Each movable tube 4 has a movable cavity 6 at one end, and a ball joint 7 is connected to the other end of the movable tube 4. The ball joint 7 is installed inside the movable cavity 6. Multiple movable tubes 4 are movably connected to each other through the ball joint 7 and the connecting tube 3. Multiple movable tubes 4 are movably connected to each other through the ball joint 7 and the movable cavity 6 to form a chain structure. The chain structure makes the entire limiting protection tube have a certain degree of flexibility and mobility. The wire-threading cavity 5 and the movable cavity 6 are interconnected, which facilitates the overall threading of the connecting wire 2. The laser emitting end face of the sensor body 1 is coated with a hydrophobic coating 8. The hydrophobic coating 8 can effectively prevent water mist from condensing on the laser emitting end face, thereby ensuring the normal operation of the laser sensor.

[0020] In order to ensure the structural toughness while reducing manufacturing costs and weight, in this embodiment, as a preferred technical solution of the present invention, the ball joint 7 and the movable cavity 6 are interference-fitted, and the connecting pipe 3, the movable pipe 4 and the ball joint 7 are all made of PVC.

[0021] To ensure the strength of the structural components, in this embodiment, as a preferred technical solution of the present invention, the connecting pipe 3 and the movable pipe 4 are integrally formed with the corresponding ball joint 7.

[0022] To prevent moisture from entering the sensor body 1, in this embodiment, as a preferred technical solution of the present invention, a sealing ring is filled between the wire-passing cavity 5 inside the connecting pipe 3 and the wire body of the connecting wire 2.

[0023] In summary, with the help of the above-mentioned technical solution of this utility model, when in use, the movable tube 4 at the base of the connecting line 2 is first adjusted according to the installation space of the sensor body 1. The ball joint 7 of the rear movable tube 4 rotates in the movable cavity 6 of the front movable tube 4, thereby adjusting the shape of the chain structure. Due to the limiting effect of the edge of the ball joint 7 of the rear movable tube 4, the chain structure formed by the movable tube 4 cannot be bent at a small angle, thus effectively protecting the connecting line 2 of the sensor body 1 inside the wire-threading cavity 5 and avoiding damage or breakage.

[0024] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser sensor with a waterproof and fog-proof structure, comprising a sensor body (1), wherein a connecting wire (2) is connected to the bottom of one side of the sensor body (1), characterized in that: The connecting line (2) is equipped with a limiting protection tube on its outside. The limiting protection tube includes a connecting pipe (3) and multiple movable pipes (4). Both the connecting pipe (3) and the movable pipes (4) have a threading cavity (5) inside. The connecting line (2) passes through the threading cavity (5). One side of the connecting pipe (3) is fixedly connected to the housing of the sensor body (1). The other side of the connecting pipe (3) and one end of the movable pipe (4) are both provided with a movable cavity (6). The other end of the movable pipe (4) is connected to a ball joint (7). The ball joint (7) is installed inside the movable cavity (6). Multiple movable pipes (4) are movably connected to each other through the ball joint (7) and the connecting pipe (3). One end of multiple movable pipes (4) is movably connected to the connecting pipe (3) through the ball joint (7). The threading cavity (5) and the movable cavity (6) are interconnected. The laser emitting end face of the sensor body (1) is coated with a hydrophobic coating (8).

2. A laser sensor with a waterproof fog-proof structure according to claim 1, characterized in that: Multiple movable tubes (4) are movably connected to each other through ball joints (7) and movable cavities (6) to form a chain structure.

3. A laser sensor with a waterproof fog-proof structure according to claim 1, characterized in that: The ball joint (7) and the movable cavity (6) are interference-fitted together, and the connecting pipe (3), the movable pipe (4) and the ball joint (7) are all made of PVC.

4. A laser sensor with a waterproof fog-proof structure according to claim 3, characterized in that: The connecting pipe (3) and the movable pipe (4) are integrally formed with the corresponding ball joint (7).

5. A laser sensor with a waterproof fog-proof structure according to claim 1, characterized in that: A sealing ring is filled between the threading cavity (5) inside the connecting pipe (3) and the wire body of the connecting wire (2).

Images