Optical fiber signal on-off switch

Abstract

An optical fiber signal on-off switch disclosed by the present invention comprises a switch base, the switch base is provided with an optical fiber channel and a central installation cavity, the optical fiber channel penetrates through the switch base, an incident optical fiber joint and an emergent optical fiber joint are respectively installed at two ends of the optical fiber channel on the switch base, and a rotating body is rotatably installed in the central installation cavity. A shielding block for shielding an optical fiber channel is arranged on the rotating body, a rotating power device for driving the rotating body to rotate is arranged on the switch base, and the rotating power device drives the rotating body to rotate so that the shielding block can deflect between a shielding closing station and a shielding opening station and drives the rotating body to rotate. According to the optical fiber signal on-off switch, automatic control can be achieved, deflection of the shielding block is rapid, and therefore on-off is correspondingly quite rapid.

Description

Technical Field

[0001] The invention relates to an optical fiber signal on-off switch used for a dust concentration meter. Background Art

[0002] The particle dust meter uses the principle of light scattering to detect the particle concentration in the detection chamber. For example, the public document with patent application number CN202010338712.X records a non-destructive online detection device and non-destructive online detection method for dust particle size and concentration, which uses the principle of photoelectric conversion to realize the detection of particle concentration. However, a fiber optic signal on-off switch is used during the photoelectric conversion. The invention disclosure document with authorization announcement number CN207148368U discloses a guided fiber optic switch, which realizes the on-off of the optical fiber by pressing a button. However, this on-off method can only be done manually, which is difficult to meet the needs of particle concentration detection. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an optical fiber signal on-off switch, which can realize automatic control, the deflection of the shielding block is fast, the on-off response is very fast, and the particle concentration detection can be satisfied.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a fiber optic signal on-off switch, including a switch seat, a fiber optic channel and a central installation chamber are arranged on the switch seat, the fiber optic channel runs through the switch seat, and an incident fiber optic connector and an output fiber optic connector are respectively installed at both ends of the fiber optic channel on the switch seat, a rotating body is rotatably installed in the central installation chamber, a blocking block for blocking the fiber optic channel is arranged on the rotating body, and a rotating power device for driving the rotating body to rotate is arranged on the switch seat, and the rotating power device drives the rotating body to rotate so that the blocking block deflects between the blocking closing position and the opening position.

[0005] As a preferred solution, the rotating power device is a drive motor, and the drive motor is transmission-connected to the rotating body.

[0006] As a preferred solution, the rotating power device is a drive motor, the rotating body is the inner rotor of the drive motor, the blocking block is fixed on the inner rotor, a wiring harness is wound around the inner rotor, a stator magnet is embedded in the outer periphery of a central mounting chamber in the switch seat, the inner rotor and the stator magnet together constitute the drive motor, and a socket is provided on the switch seat, and pins connected to the wiring harness are provided in the socket.

[0007] As a preferred solution, the rotating power device is a rotating electromagnet, the rotating part of the rotating electromagnet constitutes the rotating body, the switch seat is provided with a socket, and the wiring harness pins of the rotating electromagnet are arranged in the socket.

[0008] As a preferred solution, the switch seat includes a switch seat body and a first end plate and a second end plate detachably fixed at both ends of the switch seat body, the switch seat body is provided with the central mounting chamber, the first end plate is provided with the socket, the first end plate and the second end plate are respectively provided with a first optical fiber mounting hole and a second optical fiber mounting hole, the first optical fiber mounting hole and the second optical fiber mounting hole are provided with a first threaded hole section and a second threaded hole section, and the switch seat body is also provided with an intermediate optical fiber mounting hole, the first optical fiber mounting hole, the intermediate optical fiber mounting hole and the second optical fiber mounting hole are coaxially arranged and cooperate to form the optical fiber channel, the incident optical fiber connector and the output optical fiber connector are respectively threadedly connected to the first threaded hole section and the second threaded hole section, and the blocking block is located between the first threaded hole section and the intermediate optical fiber mounting hole or the second threaded hole section and the intermediate optical fiber mounting hole.

[0009] As a preferred solution, a limit groove is provided on the switch seat body, the blocking block is in the limit groove, one end of the limit groove is a limit end, and the blocking block blocks the optical fiber channel when cooperating with the limit end.

[0010] As a preferred solution, the central installation chamber includes a first installation chamber and a second installation chamber, the first installation chamber is connected to the limiting groove, the diameter of the first installation chamber is larger than that of the second installation chamber and forms a positioning step, and the rotating electromagnet is installed in the second installation chamber.

[0011] After adopting the above technical scheme, the effect of the present invention is as follows: since the fiber optic signal on-off switch includes a switch seat, the switch seat is provided with an optical fiber channel and a central installation chamber, the optical fiber channel runs through the switch seat, and the switch seat is respectively provided with an incident optical fiber connector and an output optical fiber connector at both ends of the optical fiber channel, a rotating body is rotatably installed in the central installation chamber, and a blocking block for blocking the optical fiber channel is provided on the rotating body, and a rotating power device for driving the rotating body to rotate is provided on the switch seat, and the rotating power device drives the rotating body to rotate so that the blocking block deflects between the blocking closing position and the opening position, so that the rotation of the rotating body can be driven by the rotating power device, thereby controlling the blocking block to deflect between the blocking closing position and the opening position to realize the on-off of the optical fiber signal, and the optical fiber signal on-off switch can realize automatic control, and the blocking block deflects quickly, so the on-off response is very fast.

[0012] Furthermore, since the rotating power device is a driving motor, the rotating body is the inner rotor of the driving motor, the blocking block is fixed on the inner rotor, a wiring harness is wound around the inner rotor, a stator magnet is embedded in the outer periphery of the central mounting chamber in the switch seat, the inner rotor and the stator magnet together constitute the driving motor, a connector is provided on the switch seat, and pins connected to the wiring harness are provided in the connector, so that the structure of the optical fiber signal on-off switch is further simplified and the overall volume is smaller.

[0013] Furthermore, since the rotating power device is a rotating electromagnet, the rotating part of the rotating electromagnet constitutes the rotating body, a socket is provided on the switch seat, and the wiring harness pin of the rotating electromagnet is arranged in the socket, the blocking block of the rotating electromagnet deflects faster and is simpler to control.

[0014] Furthermore, since the switch seat includes a switch seat body and a first end plate and a second end plate that are detachably fixed at both ends of the switch seat body, the switch seat body is provided with the central installation chamber, the first end plate is provided with the socket, the first end plate and the second end plate are respectively provided with a first optical fiber installation hole and a second optical fiber installation hole, the first optical fiber installation hole and the second optical fiber installation hole are provided with a first threaded hole section and a second threaded hole section, and the switch seat body is also provided with an intermediate optical fiber installation hole, the first optical fiber installation hole, the intermediate optical fiber installation hole and the second optical fiber installation hole are coaxially arranged and cooperate to form the optical fiber channel, the incident optical fiber connector and the output optical fiber connector are respectively threadedly connected to the first threaded hole section and the second threaded hole section, and the blocking block is located between the first threaded hole section and the intermediate optical fiber installation hole or the second threaded hole section and the intermediate optical fiber installation hole. Therefore, the switch seat adopts a split design, has low manufacturing difficulty, and is convenient for forming the first optical fiber installation hole, the intermediate optical fiber installation hole, and the second optical fiber installation hole.

[0015] Furthermore, since a limiting groove is provided on the switch seat body, the blocking block is located in the limiting groove, one end of the limiting groove is a limiting end, and the blocking block blocks the optical fiber channel when cooperating with the limiting end. Therefore, the limiting groove can be used to limit the blocking block to ensure that the swing position of the blocking block is accurate.

[0016] Furthermore, since the central installation chamber includes a first installation chamber and a second installation chamber, the first installation chamber is connected to the limiting groove, the diameter of the first installation chamber is larger than that of the second installation chamber and forms a positioning step, and the rotating electromagnet is installed in the second installation chamber, the installation of the rotating electromagnet is very convenient, and it only needs to be inserted into the casing from the first installation chamber, and the action of the rotating electromagnet driving the blocking block is also faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 is a stereogram of an embodiment of the present invention;

[0019] Figure 2 is a front view of an embodiment of the present invention;

[0020] Figure 3 yes Figure 2 Section view along AA;

[0021] Figure 4 It is a schematic structural diagram of a switch base body, a rotating electromagnet and a first end plate according to an embodiment of the present invention;

[0022] Figure 5 is an exploded view of an embodiment of the present invention;

[0023] Figure 6 is a schematic structural diagram of a rotating electromagnet according to an embodiment of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the switch base body according to an embodiment of the present invention;

[0025] In the accompanying drawings: 1. Incident optical fiber connector; 2. Exit optical fiber connector; 3. Rotating body; 4. This block; 5. Switch seat body; 6. First end plate; 7. Second end plate; 8. First optical fiber mounting hole; 9. Second optical fiber mounting hole; 10. Middle optical fiber mounting hole; 11. Limiting groove; 12. First mounting chamber; 13. Second mounting chamber; 14. Pin. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below through specific examples.

[0027] like Figure 1-7 As shown, a fiber optic signal on-off switch comprises a switch seat, on which a fiber optic channel and a central installation chamber are provided, the fiber optic channel runs through the switch seat, an incident fiber optic connector 1 and an output fiber optic connector 2 are respectively installed at both ends of the fiber optic channel on the switch seat, a rotating body 3 is rotatably installed in the central installation chamber, a blocking block 4 for blocking the fiber optic channel is provided on the rotating body 3, and a rotating power device for driving the rotating body 3 to rotate is provided on the switch seat, and the rotating power device drives the rotating body 3 to rotate so that the blocking block 4 deflects between the blocking closing position and the opening position.

[0028] In this embodiment, the rotary power device is a rotary electromagnet, the rotating part of the rotary electromagnet constitutes the rotary body 3, a socket is provided on the switch seat, and the wiring harness pin 14 of the rotary electromagnet is arranged in the socket.

[0029] In this embodiment, the switch seat includes a switch seat body 5 and a first end plate 6 and a second end plate 7 detachably fixed at both ends of the switch seat body 5. The switch seat body 5 is provided with the central installation chamber, the first end plate 6 is provided with the socket, the first end plate 6 and the second end plate 7 are respectively provided with a first optical fiber installation hole 8 and a second optical fiber installation hole 9, the first optical fiber installation hole 8 and the second optical fiber installation hole 9 are provided with a first threaded hole section and a second threaded hole section, and the switch seat body 5 is also provided with an intermediate optical fiber installation hole 10. The first optical fiber installation hole 8, the intermediate optical fiber installation hole 10 and the second optical fiber installation hole 9 are coaxially arranged and cooperate to form the optical fiber channel, the incident optical fiber connector 1 and the output optical fiber connector 2 are respectively threadedly connected to the first threaded hole section and the second threaded hole section, and the blocking block 4 is located between the first threaded hole section and the intermediate optical fiber installation hole 10 or the second threaded hole section and the intermediate optical fiber installation hole 10.

[0030] The switch seat body 5 is provided with a limit groove 11, the blocking block 4 is in the limit groove 11, one end of the limit groove 11 is a limit end, and the blocking block 4 blocks the optical fiber channel when it cooperates with the limit end. The central installation chamber includes a first installation chamber 12 and a second installation chamber 13, the first installation chamber 12 is connected to the limit groove 11, the diameter of the first installation chamber 12 is larger than the second installation chamber 13 and forms a positioning step, the rotating electromagnet is installed in the second installation chamber 13, the blocking block 4 is arranged on the rotating part of the rotating electromagnet, the blocking block 4 is in the limit groove 11, and the pin 14 extends into the socket.

[0031] During production, the switch seat of the present application adopts a split design, which is easy to produce and convenient for forming the first optical fiber installation hole 8, the middle optical fiber installation hole 10 and the second optical fiber installation hole 9. During installation, the installation of the rotating electromagnet is very convenient. It only needs to be inserted into the casing from the first installation chamber 12, and the action of the rotating electromagnet driving the blocking block 4 is also faster. When in use, the rotating body 3 of the rotating electromagnet rotates to control the blocking block to deflect between the blocking closing position and the opening position to realize the on and off of the optical fiber signal. The limiting sink 11 can limit the blocking block 4 to ensure that the swing position of the blocking block 4 is accurate. The optical fiber signal on-off switch can realize automatic control, the on-off response is very fast, and it is easy to control.

[0032] Of course, the above-mentioned rotary power device can also be a drive motor, and the drive motor can be connected to the rotating body 3 in a transmission manner. The drive motor can also be other structures. For example, the rotating body 3 is an inner rotor, the blocking block 4 is fixed on the inner rotor, a wiring harness is wound on the inner rotor, a stator magnet is embedded in the outer periphery of the central mounting chamber in the switch seat, the inner rotor and the stator magnet together constitute a rotary power device, and a socket is provided on the switch seat, and a pin 14 connected to the wiring harness is provided in the socket.

[0033] The gas circuit system, actuators such as servo motors, gear transmission mechanisms, and lead screw nut mechanisms mentioned in this embodiment are all current conventional technologies. The specific structures and principles and other designs of cylinders, motors, and other transmission mechanisms are disclosed in detail in the "Mechanical Design Manual, Fifth Edition", the 28th printing of the fifth edition in Beijing in April 2008, which belongs to the prior art and its structure is clear. The SMC training textbook "Modern Practical Pneumatic Technology, 3rd Edition" published by the Machinery Industry Press on August 1, 2008 discloses vacuum components, gas circuits, and program control in detail, indicating that the gas circuit structure in this embodiment is also an existing technology and is clear. The book "Motor Drive and Speed ​​Regulation" published by the Chemical Industry Press on July 1, 2015 also introduces the control of the motor and the travel switch in detail. Therefore, the circuit and gas circuit connections are clear.

[0034] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An optical fiber signal on-off switch, characterized in that: The invention comprises a switch seat, wherein the switch seat is provided with an optical fiber channel and a central installation chamber, the optical fiber channel runs through the switch seat, an incident optical fiber connector and an output optical fiber connector are respectively installed at two ends of the optical fiber channel on the switch seat, a rotating body is rotatably installed in the central installation chamber, a blocking block for blocking the optical fiber channel is arranged on the rotating body, and a rotating power device for driving the rotating body to rotate is arranged on the switch seat, and the rotating power device drives the rotating body to rotate so that the blocking block deflects between a blocking closing position and an opening position.

2. The optical fiber signal on-off switch according to claim 1, characterized in that: The rotating power device is a driving motor, and the driving motor is transmission-connected to the rotating body.

3. The optical fiber signal on-off switch according to claim 1, characterized in that: The rotating power device is a driving motor, the rotating body is the inner rotor of the driving motor, the blocking block is fixed on the inner rotor, a wiring harness is wound around the inner rotor, a stator magnet is embedded in the outer periphery of the central mounting chamber in the switch seat, the inner rotor and the stator magnet together constitute the driving motor, and a socket is provided on the switch seat, and pins connected to the wiring harness are provided in the socket.

4. The optical fiber signal on-off switch according to claim 1, characterized in that: The rotating power device is a rotating electromagnet, the rotating part of the rotating electromagnet constitutes the rotating body, the switch seat is provided with a socket, and the wiring harness pins of the rotating electromagnet are arranged in the socket.

5. The optical fiber signal on-off switch according to claim 4, characterized in that: The switch seat comprises a switch seat body and a first end plate and a second end plate detachably fixed at both ends of the switch seat body, the switch seat body is provided with the central mounting chamber, the first end plate is provided with the socket, the first end plate and the second end plate are respectively provided with a first optical fiber mounting hole and a second optical fiber mounting hole, the first optical fiber mounting hole and the second optical fiber mounting hole are provided with a first threaded hole section and a second threaded hole section, the switch seat body is also provided with an intermediate optical fiber mounting hole, the first optical fiber mounting hole, the intermediate optical fiber mounting hole and the second optical fiber mounting hole are coaxially arranged and cooperate to form the optical fiber channel, the incident optical fiber connector and the output optical fiber connector are respectively threadedly connected to the first threaded hole section and the second threaded hole section, and the blocking block is located between the first threaded hole section and the intermediate optical fiber mounting hole or the second threaded hole section and the intermediate optical fiber mounting hole.

6. The optical fiber signal on-off switch according to claim 5, characterized in that: The switch seat body is provided with a limit groove, the shielding block is in the limit groove, one end of the limit groove is a limit end, and the shielding block shields the optical fiber channel when cooperating with the limit end.

7. The optical fiber signal on-off switch according to claim 6, characterized in that: The central installation chamber includes a first installation chamber and a second installation chamber, the first installation chamber is connected to the limiting groove, the diameter of the first installation chamber is larger than the second installation chamber and forms a positioning step, and the rotating electromagnet is installed in the second installation chamber.

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