An automatic lifting mechanism for photoelectric sensor

Abstract

The utility model discloses a photoelectric sensor automatic elevating system, including movable support, one end fixed mounting of movable support has photoelectric sensor, the other end swing mounting of movable support has fixed support, and the fixed support with spring are fixedly connected between movable support, the utility model discloses in this device use, need to fix the installation of this device on the support of the tape machine both sides of water hose laying vehicle, when water hose laying vehicle carries out the conveyance to water hose, swing movable support, make movable support stand up, and the photoelectric sensor is to the tape machine of water hose laying vehicle, make water hose joint can smoothly pass through the area of compact support roll, and the utility model discloses movable support and fixed support between for pure mechanical structure connection, simple structure is reliable, can greatly save the manufacturing cost, and can reduce the occurrence of failure because of being pure mechanical structure simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of signal acquisition mechanical mechanism technology, and in particular to an automatic lifting mechanism for a photoelectric sensor. Background Technology

[0002] Currently, long-range water supply equipment is increasingly used in firefighting, and hose laying vehicles are an important component of such equipment. Hose laying vehicles can automatically deploy and retract hoses, greatly improving operational efficiency.

[0003] During the installation of water hoses, the pressure rollers need to be opened in a timely manner to allow the hose joints to pass smoothly due to the presence of hose joints. Therefore, a sensor is needed to detect whether a joint is about to pass through the pressure roller. Since the water hose truck has a protective cover, the sensor bracket should have a height adjustment function.

[0004] Existing automatic lifting mechanisms for photoelectric sensors typically use the extension and retraction of electric or pneumatic actuators to adjust the sensor bracket height. This addition of electric or pneumatic actuators necessitates additional electric or pneumatic circuits, making the overall structure more complex. This increases manufacturing costs and, more importantly, the more prone the mechanism is to errors, leading to a higher failure rate. Utility Model Content

[0005] The purpose of this invention is to provide an automatic lifting mechanism for photoelectric sensors to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic lifting mechanism for a photoelectric sensor, comprising a movable bracket, a photoelectric sensor fixedly mounted at one end of the movable bracket, a fixed bracket rotatably mounted at the other end of the movable bracket, and a spring fixedly connected between the fixed bracket and the movable bracket.

[0007] As a further description of the above technical solution: the bottom of the fixed bracket is provided with an installation frame, the installation frame is equipped with a hose take-up machine, the top of the hose take-up machine is provided with a pressing roller, a plurality of the fixed brackets are fixedly installed on the hose take-up machine, and a drive mechanism is provided between the pressing roller and the hose take-up machine.

[0008] As a further description of the above technical solution: the driving mechanism includes two connecting rods, which are rotatably mounted on both sides of the hose take-up machine. The pressing roller is mounted on the end of the connecting rod away from the hose take-up machine. A first push rod is rotatably mounted on both sides of the hose take-up machine, and the output end of the first push rod is rotatably connected to the connecting rod.

[0009] As a further description of the above technical solution: the photoelectric sensor is electrically connected to the first push rod.

[0010] As a further description of the above technical solution: a flip-over protective cover is rotatably installed on both sides of the mounting frame. The flip-over protective cover is composed of a protective frame and a protective frame. The protective frame is rotatably installed on both sides of the mounting frame. The top of the protective frame is rotatably connected to the protective frame. A support guide rail mechanism is provided between the flip-over protective cover and the mounting frame.

[0011] As a further description of the above technical solution: the supporting guide rail mechanism includes a movable frame and a second push rod. The second push rod is fixedly installed on the mounting frame, the movable frame is slidably installed on the mounting frame, the output end of the second push rod is fixedly connected to the movable frame, and the top of the movable frame is rotatably connected to the protective frame.

[0012] As a further description of the above technical solution: the movable bracket is provided with a protrusion at one end connected to the fixed bracket. When the movable bracket is placed horizontally, the protective frame is set horizontally. The protrusion of the movable bracket is located inside the protective frame, and the height of the protrusion is higher than the edge of the first flip protective cover.

[0013] This utility model provides an automatic lifting mechanism for photoelectric sensors. It has the following advantages: During use, the photoelectric sensor is raised and lowered through the cooperation of a support track mechanism, a flip-over protective cover, and a movable bracket. When the hose laying vehicle is in use, the track support mechanism drives the flip-over protective cover to fold, unfolding the top of the hose laying vehicle. During the folding process of the flip-over protective cover, the movable bracket is raised, causing the photoelectric sensor to rise and detect the hose conveyed at the top of the hose take-up machine. When the hose joint moves to the position of the clamping roller, the photoelectric sensor sends an electrical signal to the first push rod. The first push rod pushes the connecting rod, causing the clamping roller to rise and allowing the hose joint to pass through. The clamping roller is positioned between two photoelectric sensors, controlling its raising and lowering.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0015] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic lifting mechanism for a photoelectric sensor proposed in this utility model;

[0017] Figure 2This is a three-dimensional structural diagram of the present invention in its working state;

[0018] Figure 3 This is a three-dimensional structural diagram of the mounting frame, the flip-over protective cover, and the hose reel in this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0020] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B

[0021] Figure 6 This utility model Figure 3 Enlarged structural diagram at point C

[0022] Figure 7 This is a schematic diagram of the main structure of the mounting frame, the flip-over protective cover, and the hose reel in this utility model.

[0023] Legend:

[0024] 1. Movable bracket; 2. Photoelectric sensor; 3. Fixed bracket; 4. Spring; 5. Mounting frame; 6. Hose winding machine; 7. Pressing roller; 8. Connecting rod; 9. First push rod; 10. Tilting protective cover; 11. Protective frame; 12. Protective frame; 13. Movable frame; 14. Second push rod; 15. Protrusion. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-7An automatic lifting mechanism for a photoelectric sensor includes a movable bracket 1. A photoelectric sensor 2 is fixedly installed at one end of the movable bracket 1, and a fixed bracket 3 is rotatably installed at the other end of the movable bracket 1. A spring 4 is fixedly connected between the fixed bracket 3 and the movable bracket 1. In use, this device needs to be fixedly installed on brackets on both sides of the take-up conveyor of a hose laying vehicle. When the hose laying vehicle transports the hose, the movable bracket 1 is rotated to raise it, and the photoelectric sensor 2 faces the take-up conveyor of the hose laying vehicle. When the hose joint moves to the detection area of ​​the photoelectric sensor 2, the photoelectric sensor 2 transmits the detected optical signal to the first push rod 9 between the pressing roller 7 and the hose laying vehicle via an electrical signal. The first push rod 9 drives the pressing roller 7 to rise, allowing the hose joint to pass smoothly through the area of ​​the pressing roller 7. In this invention, the connection between the movable bracket 1 and the fixed bracket 3 is a purely mechanical structure, which is simple and reliable, greatly saving manufacturing costs. Furthermore, because it is a purely mechanical structure, it reduces the occurrence of malfunctions.

[0027] As a preferred technical solution in this embodiment, the bottom of the fixed bracket 3 is provided with an installation frame 5, the installation frame 5 is mounted with a hose take-up machine 6, the top of the hose take-up machine 6 is provided with a pressing roller 7, and multiple fixed brackets 3 are fixedly installed on the hose take-up machine 6. A driving mechanism is provided between the pressing roller 7 and the hose take-up machine 6. During the automatic hose laying and take-up process of the hose laying vehicle, the pressing roller 7 plays a role in pressing and fixing the hose. However, the height of the hose joint is greater than the distance between the pressing roller 7 and the hose take-up machine 6. Therefore, when the hose joint moves to the position of the pressing roller 7, the driving mechanism is required to drive the pressing roller 7 to rise so that the hose joint can pass smoothly through the position of the pressing roller 7.

[0028] As a preferred embodiment, the driving mechanism includes two connecting rods 8, which are rotatably mounted on both sides of the hose take-up machine 6. The pressing roller 7 is mounted on the end of the connecting rod 8 away from the hose take-up machine 6. A first push rod 9 is rotatably mounted on both sides of the hose take-up machine 6. The output end of the first push rod 9 is rotatably connected to the connecting rod 8. The output end of the first push rod 9 drives the connecting rod 8 to rise and fall, so that the connecting rod 8 presses the pressing roller 7 to rise and fall.

[0029] As a preferred technical solution in this embodiment, the photoelectric sensor 2 is electrically connected to the first push rod 9; the photoelectric sensor 2 converts the measured light signal into an electrical signal and transmits it to the first push rod 9.

[0030] As a preferred technical solution in this embodiment, a flip-over protective cover 10 is rotatably installed on both sides of the mounting frame 5. The flip-over protective cover 10 is composed of a protective frame 11 and a protective frame 12. The protective frame 12 is rotatably installed on both sides of the mounting frame 5. The top of the protective frame 11 and the protective frame 12 are rotatably connected. A support guide rail mechanism is provided between the flip-over protective cover 10 and the mounting frame 5. When this device is in use, the support guide rail mechanism drives the flip-over protective cover 10 to fold the protective frame 11 and the protective frame 12, so that the top of the hose laying vehicle unfolds, and the hose and hose connector are transported by the hose take-up machine 6.

[0031] As a preferred embodiment, the supporting guide rail mechanism includes a movable frame 13 and a second push rod 14. The second push rod 14 is fixedly installed on the mounting frame 5, and the movable frame 13 is slidably installed on the mounting frame 5. The output end of the second push rod 14 is fixedly connected to the movable frame 13, and the top of the movable frame 13 is rotatably connected to the protective frame 11. When the second push rod 14 drives the movable frame 13 to move, the protective frame 11 moves along with the movable frame 13. During the movement of the protective frame 11, the protective frame 11 pushes the protective frame 12, causing the protective frame 12 to rotate. At the same time, the protective frame 11 and the protective frame 12 fold together.

[0032] As a preferred technical solution of this embodiment, the movable bracket 1 is provided with a protrusion 15 at one end connected to the fixed bracket 3. When the movable bracket 1 is horizontal, the protective frame 11 is horizontally positioned. The protrusion 15 of the movable bracket 1 is located inside the protective frame 11, and the height of the protrusion 15 is higher than the edge of the first flip protective cover 10. During the movement of the protective frame 11, the edge of the protective frame 11 contacts the protrusion 15. As the protective frame 11 moves, it drives the movable bracket 1 to rotate. Since a spring 4 is provided between the movable bracket 1 and the fixed bracket 3, after the movable bracket 1 rotates past the dead point, the movable bracket is in a vertical state under the pull of the spring 4, that is, in the working state. When the flip protective cover 10 is reset, the protective frame 11 contacts the movable bracket 1, dragging the movable bracket 1 to reset.

[0033] General working principle:

[0034] During use, the device utilizes the cooperation of the support track mechanism, the flip-over protective cover 10, and the movable bracket 1 to raise and lower the photoelectric sensor 2. When the hose laying vehicle is in use, the track support mechanism drives the flip-over protective cover 10 to fold, allowing the top of the hose laying vehicle to unfold. During the folding process of the flip-over protective cover 10, the movable bracket 1 is raised, causing the photoelectric sensor 2 to rise and detect the hose conveyed on the top of the hose take-up machine 6. When the hose joint moves to the position of the pressing roller 7, the photoelectric sensor 2 sends an electrical signal to the first push rod 9. The first push rod 9 pushes the connecting rod 8, causing the pressing roller 7 to rise and allow the hose joint to pass through. The pressing roller 7 is positioned between the two photoelectric sensors 2, controlling the raising and lowering of the pressing roller 7.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic lifting mechanism for a photoelectric sensor (2), comprising a movable support (1), characterized in that: A photoelectric sensor (2) is fixedly installed at one end of the movable bracket (1), and a fixed bracket (3) is rotatably installed at the other end of the movable bracket (1). A spring (4) is fixedly connected between the fixed bracket (3) and the movable bracket (1).

2. The automatic lifting mechanism for a photoelectric sensor (2) according to claim 1, characterized in that, The fixed bracket (3) is provided with an installation frame (5) at the bottom, and a hose take-up machine (6) is installed on the installation frame (5). A pressure roller (7) is provided on the top of the hose take-up machine (6). Multiple fixed brackets (3) are fixedly installed on the hose take-up machine (6). A drive mechanism is provided between the pressure roller (7) and the hose take-up machine (6).

3. The automatic lifting mechanism for a photoelectric sensor (2) according to claim 2, characterized in that, The drive mechanism includes two connecting rods (8), which are rotatably mounted on both sides of the hose take-up machine (6). The pressing roller (7) is mounted on the end of the connecting rod (8) away from the hose take-up machine (6). A first push rod (9) is rotatably mounted on both sides of the hose take-up machine (6), and the output end of the first push rod (9) is rotatably connected to the connecting rod (8).

4. The automatic lifting mechanism for a photoelectric sensor (2) according to claim 3, characterized in that, The photoelectric sensor (2) is electrically connected to the first push rod (9).

5. The automatic lifting mechanism for a photoelectric sensor (2) according to claim 4, characterized in that, The mounting frame (5) is rotatably mounted on both sides of the rotating protective cover (10). The rotating protective cover (10) is composed of a protective frame (11) and a protective frame (12). The protective frame (12) is rotatably mounted on both sides of the mounting frame (5). The top of the protective frame (11) and the protective frame (12) are rotatably connected. A support guide rail mechanism is provided between the rotating protective cover (10) and the mounting frame (5).

6. The automatic lifting mechanism for a photoelectric sensor (2) according to claim 5, characterized in that, The support guide rail mechanism includes a movable frame (13) and a second push rod (14). The second push rod (14) is fixedly installed on the mounting frame (5). The movable frame (13) is slidably installed on the mounting frame (5). The output end of the second push rod (14) is fixedly connected to the movable frame (13). The top of the movable frame (13) is rotatably connected to the protective frame (11).

7. The automatic lifting mechanism for a photoelectric sensor (2) according to claim 5, characterized in that, The movable bracket (1) is connected to the fixed bracket (3) at one end with a protrusion (15). When the movable bracket (1) is placed horizontally, the protective frame (11) is set horizontally. The protrusion (15) of the movable bracket (1) is set inside the protective frame (11), and the height of the protrusion (15) is higher than the edge of the flip protective cover (10).

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