Adjustable air-blast photoelectric transmitter

Abstract

The utility model discloses an adjustable air blowing type photoelectric signaling device relates to photoelectric signaling device technical field, the utility model discloses a shell, mounting panel, U -shaped frame and transfer storehouse, the upper edge department of the circumference of shell is fixed with the fixed ring, the top of fixed ring is fixed with transfer storehouse, the one end of transfer storehouse is fixedly connected with the flat nozzle in the proximity of shell center axis, the top of transfer storehouse is provided with mounting panel, and mounting panel is set up and the central part of mounting panel vertical portion is centrally along the thickness direction and is opened and is set up with the limit screw hole, and the limit screw hole is connected with the knob bolt in the through thread, and the one end of knob bolt is rotatably connected with U -shaped frame in the proximity of shell center axis. The utility model discloses a shell, mounting panel, U -shaped frame and transfer storehouse, solve the photoelectric signaling device work and face the liquid drop that sticks to the liquid object and drops and produce detection interference, and the problem that the position applicability between different measurement shell and cover is not good enough.

Description

Technical Field

[0001] This utility model belongs to the field of photoelectric transmitter technology, and in particular relates to an adjustable air-blowing photoelectric transmitter. Background Technology

[0002] Photoelectric transmitters are a type of photoelectric sensor commonly used in industrial automation. Their core function is to detect the presence, position, or distance of a target object using optical principles and convert it into a usable electrical signal output. The device mainly consists of three parts: a transmitter (usually an LED or laser diode, used to emit modulated light), a receiver (such as a phototransistor, used to receive the light signal), and a signal processing circuit (responsible for converting changes in the light signal into a clear electrical signal). However, photoelectric transmitters still have the following drawbacks in practical use: When the photoelectric transmitter is working with equipment that is moving vertically, if a structure with liquid on its surface passes the photoelectric transmitter vertically, the liquid drips after rising and then passes the measurement position of the photoelectric transmitter, triggering the photoelectric transmitter's switch. This will cause incorrect measurement data to be generated during the measurement process, affecting the detection accuracy of the photoelectric transmitter. Secondly, after measuring the structure passed through in the vertical direction, the photoelectric transmitter is usually directly installed and fixed. However, during the testing process, the installation equipment is directly used for installation, but without targeted position adjustment, it is easy to cause inaccurate measurements and deviations. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable air-blowing photoelectric transmitter. By setting up a housing, mounting plate, U-shaped frame and transfer chamber, it solves the problems of detection interference caused by droplets of liquid objects adhering to the photoelectric transmitter during operation, and the poor applicability to different positions of the measuring housing and cover.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to an adjustable air-blowing photoelectric transmitter, comprising a housing, a mounting plate, a U-shaped frame, and a transfer chamber. A fixing ring is fixed to the upper edge of the housing's periphery, and the transfer chamber is fixed to the top of the fixing ring. A flat nozzle is fixedly connected to one end of the transfer chamber near the central axis of the housing. The mounting plate is positioned above the transfer chamber and is L-shaped. A limiting screw hole is formed through the center of the vertical portion of the mounting plate along its thickness direction. A knob bolt is threaded through the limiting screw hole. The U-shaped frame is rotatably connected to one end of the knob bolt near the central axis of the housing. The mounting plate, U-shaped frame, and transfer chamber are supported by the fixing ring at the top of the housing. A flat nozzle is provided on one side of the transfer chamber for injecting high-pressure air into the housing. The mounting plate is L-shaped with a limiting screw hole in its middle and is rotatably connected to the U-shaped frame via a knob bolt. Rotating the knob bolt moves the U-shaped frame horizontally.

[0005] Furthermore, a cover is provided inside the outer shell, and mounting rods are vertically fixed on the periphery of the cover corresponding to the positions of the U-shaped frame. Stop bars are fixed at equal intervals on the mounting rods corresponding to the positions of the U-shaped frame. The cover is located inside the outer shell, and mounting rods with multiple stop bars are vertically installed on its outer side. The stop bars move up and down with the cover and can pass laterally through the opening area of ​​the U-shaped frame.

[0006] Furthermore, movable holes are formed through the mounting plates on both sides of the limiting screw hole. Support plates are fixed to both ends of the mounting plates, and the bottom ends of both support plates are fixed to the top of the fixing ring. Movable holes are formed on both sides of the mounting plates, and both ends are fixed to the fixing ring via the support plates. The movable holes are used to guide the insertion rod on the U-shaped frame, restricting its movement to horizontal only and preventing rotation.

[0007] Furthermore, a photoelectric switch and a laser pointer are horizontally fixed at each of the two ends of the U-shaped frame. The central axis of the laser pointer and the central axis of the photoelectric switch are aligned on the same straight line. The emitting end of the laser pointer faces the photoelectric switch, and the receiving end of the photoelectric switch faces the laser pointer. The laser pointer is mounted at one end of the U-shaped frame, and the photoelectric switch is correspondingly mounted at the other end. The laser beam emitted by the laser pointer shines directly on the photoelectric switch, keeping it closed; when the baffle passes and blocks the beam, the photoelectric switch opens and sends a signal.

[0008] Furthermore, each of the two U-shaped brackets on both sides of the knob bolt is fixed with a plug rod. The two plug rods are respectively inserted into the movable hole. The plug rods on both sides of the U-shaped bracket are inserted into the movable hole of the mounting plate to ensure that the U-shaped bracket only moves horizontally and does not rotate when adjusting the knob bolt.

[0009] Furthermore, the transfer chamber is set between two support plates. A connector is fixedly connected to one short side of the transfer chamber away from the flat nozzle. The transfer chamber is located between the two support plates and is connected to a high-pressure air source through the connector on one side. After the air is pressure-stabilized by the transfer chamber, it is sprayed out by the flat nozzle to blow off the residual sealing liquid on the baffle.

[0010] This utility model has the following beneficial effects: This invention solves the problem of detection interference caused by liquid droplets falling from objects with liquid residue when the photoelectric transmitter is in operation. By incorporating a housing, a U-shaped frame, and a transfer chamber, the invention addresses this issue. A high-pressure air supply pipe connector is inserted into a connecting head. As the housing rises, air is delivered to the connecting head and blown into the transfer chamber. The air then transfers within the chamber and is sprayed through a flat nozzle onto the mounting rod and baffle on the housing. This causes any residual sealant on the baffle to be blown onto the mounting rod and slide down it, preventing dripping through the U-shaped frame. Therefore, when objects with liquid residue pass by, the photoelectric transmitter can effectively remove any potential liquid droplets, preventing detection interference.

[0011] This invention solves the problem of insufficient applicability of photoelectric transmitters to different measuring housings and covers by setting up an outer shell, mounting plate, and U-shaped frame. When the knob bolt is rotated, it connects to the limit screw hole, driving the U-shaped frame to move. This ensures that during operation, the cover rises, driving the mounting rod and stop rod to rise as well. The stop rod can accurately pass through the opening end inside the U-shaped frame and block the laser emitted by the laser pointer, thus making the photoelectric transmitter more adaptable to different measuring housings and covers. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A three-dimensional view of the assembly structure of an adjustable air-blowing photoelectric transmitter; Figure 2 for Figure 1 Enlarged view of the structure at point A in the image; Figure 3 This is a three-dimensional structural view of the mounting plate; Figure 4 A three-dimensional structural diagram of the U-shaped frame; Figure 5 This is a 3D structural diagram of the transit warehouse.

[0014] Figure label: 1. Outer shell; 101. Fixing ring; 102. Cover; 103. Mounting rod; 104. Stop bar; 2. Mounting plate; 201. Movable hole; 202. Limiting screw hole; 203. Support plate; 3. U-shaped frame; 301. Knob bolt; 302. Insert rod; 303. Photoelectric switch; 304. Laser pointer; 4. Transfer compartment; 401. Connector; 402. Flat nozzle. Detailed Implementation

[0015] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0016] Please see Figure 1-4 This utility model is an adjustable air-blowing photoelectric transmitter, including a housing 1, a mounting plate 2, a U-shaped frame 3, and a transfer chamber 4. A fixing ring 101 is fixed to the upper edge of the periphery of the housing 1. The mounting plate 2, U-shaped frame 3, and transfer chamber 4 are supported on the housing 1 by the fixing ring 101. The housing 1 also contains a sealing liquid to seal the gap between the housing 1 and the cover 102. The top of the fixing ring 101 is fixed to the transfer chamber 4, which is used to transfer high-pressure air. A flat nozzle 402 is fixedly connected to one end of the transfer chamber 4 near the central axis of the housing 1. The high-pressure air transferred in the transfer chamber 4 is output to the outside through the flat nozzle 402. Inside the shell 1, above the transfer compartment 4, there is a mounting plate 2. The mounting plate 2 supports a U-shaped frame 3 on the shell 1. The mounting plate 2 is L-shaped and a limiting screw hole 202 is opened through the center of the vertical part of the mounting plate 2 along the thickness direction. The mounting plate 2 is threadedly connected to a knob bolt 301 through the limiting screw hole 202. The knob bolt 301 is threadedly connected through the limiting screw hole 202. The end of the knob bolt 301 near the central axis of the shell 1 is rotatably connected to the U-shaped frame 3. By rotating the knob bolt 301, the U-shaped frame 3 is moved through the threaded connection between the knob bolt 301 and the mounting plate 2, and the opening of the U-shaped frame 3 is adjusted to move toward the mounting rod 103.

[0017] Specifically, a cover 102 is provided inside the outer shell 1. Mounting rods 103 are vertically fixed on the periphery of the cover 102 corresponding to the position of the U-shaped frame 3. Stop bars 104 are fixed at equal intervals on the mounting rods 103 and the position of the U-shaped frame 3. The cover 102 is connected to the stop bars 104 through the mounting rods 103. After passing through the U-shaped frame 3 by different numbers of stop bars 104, the cover 102 is raised to the corresponding height.

[0018] Furthermore, movable holes 201 are provided through the mounting plates 2 on both sides of the limiting screw hole 202. Support plates 203 are fixed at both ends of the mounting plates 2. The bottom ends of the two support plates 203 are fixed to the top of the fixing ring 101. The mounting plates 2 are movably connected to the insertion rod 302 through the movable holes 201. The mounting plates 2 are supported on the fixing ring 101 by the support plates 203.

[0019] Furthermore, a photoelectric switch 303 and a laser pointer 304 are horizontally fixed at both ends of the U-shaped frame 3, respectively. The central axis of the laser pointer 304 and the central axis of the photoelectric switch 303 are aligned on the same straight line. The light-emitting end of the laser pointer 304 faces the photoelectric switch 303, and the receiving end of the photoelectric switch 303 faces the laser pointer 304. The laser emitted by the photoelectric switch 303 illuminates the photoelectric switch 303, keeping the photoelectric switch 303 in a normally closed state. After the light emitted by the laser pointer 304 is blocked, the photoelectric switch 303 opens, ensuring that the stop bar 104 passes through the opening of the U-shaped frame 3.

[0020] Furthermore, each of the two U-shaped brackets 3 on both sides of the knob bolt 301 is fixed with a plug rod 302. The two plug rods 302 are respectively inserted into the movable hole 201. The U-shaped bracket 3 is inserted into the movable hole 201 through the plug rods 302 to prevent the U-shaped bracket 3 from rotating at the same time as the knob bolt 301 rotates.

[0021] The operation process of this embodiment is as follows: During operation, firstly, rotate the knob bolt 301. When the knob bolt 301 rotates, it is threadedly connected to the limit screw hole 202, which drives the U-shaped frame 3 to move. This ensures that during operation, the cover 102 rises, which in turn drives the mounting rod 103 and the stop rod 104 to rise. The stop rod 104 can accurately pass through the open end inside the U-shaped frame 3 and block the laser emitted by the laser pointer 304. After the stop rod 104 passes through the open end inside the U-shaped frame 3 and blocks the laser emitted by the laser pointer 304, the photoelectric switch 303 opens and sends a signal. After the stop rod 104 leaves, the photoelectric switch 303 is closed by the laser pointer 304 and sends a complete switching signal. Specific Implementation

[0022] Please see Figure 1 , 2 5. Based on the specific embodiment one, the transfer chamber 4 is set between two support plates 203. A connector 401 is fixedly connected to one short side of the transfer chamber 4 away from the flat nozzle 402. The transfer chamber 4 is connected to the air supply device through the connector 401, and high-pressure air is blown into the transfer chamber 4.

[0023] The operation process of this embodiment is as follows: During operation, the high-pressure air pipeline connector is first inserted into the connector 401. During the process of the cover 102 rising, air is blown into the transfer chamber 4. The air is delivered to the connector 401 and transferred in the transfer chamber 4. Then, it is sprayed out through the flat nozzle 402 onto the mounting rod 103 and the baffle 104 on the cover 102. This causes the sealing liquid left on the baffle 104 to be blown onto the mounting rod 103 and slide down the mounting rod 103, without dripping through the U-shaped frame 3.

[0024] 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 present invention. In this specification, the 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.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable air-blowing photoelectric transmitter, comprising a housing (1), a mounting plate (2), a U-shaped frame (3), and a transfer compartment (4), characterized in that: A fixing ring (101) is fixed at the upper edge of the periphery of the outer shell (1). A transfer chamber (4) is fixed at the top of the fixing ring (101). A flat nozzle (402) is fixedly connected to one end of the transfer chamber (4) near the central axis of the outer shell (1). An installation plate (2) is provided above the transfer chamber (4). The installation plate (2) is L-shaped and a limiting screw hole (202) is opened through the center of the vertical part of the installation plate (2) along the thickness direction. A knob bolt (301) is threaded through the limiting screw hole (202). A U-shaped frame (3) is rotatably connected to one end of the knob bolt (301) near the central axis of the outer shell (1).

2. The adjustable air-blowing photoelectric transmitter according to claim 1, characterized in that: The outer shell (1) is provided with a cover (102), and a mounting rod (103) is vertically fixed on the periphery of the cover (102) corresponding to the position of the U-shaped frame (3). A stop rod (104) is fixed at equal intervals on the mounting rod (103) and the position of the U-shaped frame (3).

3. The adjustable air-blowing photoelectric transmitter according to claim 1, characterized in that: Movable holes (201) are provided in the mounting plates (2) on both sides of the limiting screw hole (202). Support plates (203) are fixed at both ends of the mounting plates (2), and the bottom ends of the two support plates (203) are fixed to the top of the fixing ring (101).

4. The adjustable air-blowing photoelectric transmitter according to claim 1, characterized in that: The two ends of the U-shaped frame (3) are respectively horizontally fixed with a photoelectric switch (303) and a laser pointer (304). The central axis of the laser pointer (304) and the central axis of the photoelectric switch (303) are set on the same straight line. The light-emitting end of the laser pointer (304) is set towards the photoelectric switch (303), and the receiving end of the photoelectric switch (303) is set towards the laser pointer (304).

5. An adjustable air-blowing photoelectric transmitter according to claim 1, characterized in that: On both sides of the knob bolt (301), there are fixed insert rods (302), and the two insert rods (302) are respectively inserted into the movable hole (201).

6. An adjustable air-blowing photoelectric transmitter according to claim 3, characterized in that: The transfer chamber (4) is located between two support plates (203), and a connector (401) is fixedly connected to one short side of the transfer chamber (4) away from the flat nozzle (402).

Images