CN210894109U - Novel laser diffuse reflection sensor assembly used in liquid - Google Patents
Novel laser diffuse reflection sensor assembly used in liquid Download PDFInfo
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- CN210894109U CN210894109U CN201921773170.8U CN201921773170U CN210894109U CN 210894109 U CN210894109 U CN 210894109U CN 201921773170 U CN201921773170 U CN 201921773170U CN 210894109 U CN210894109 U CN 210894109U
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Abstract
The utility model relates to a laser diffuse reflection sensor technical field discloses a novel laser diffuse reflection sensor subassembly for in liquid, including front sleeve, well sleeve, interior seal ring, fixed pipe, back sleeve, sleeve through-hole, laser diffuse reflection sensor and leaded light stick, front sleeve and well sleeve integrated into one piece, are the cylinder, all form hollow cavity in the central inboard, the diameter of well sleeve is greater than the diameter of front sleeve, the diameter of the cylindrical hollow cavity in the well sleeve is also greater than the diameter of the cylindrical hollow cavity in the front sleeve; the front end face center of the front sleeve is provided with a cylindrical front sleeve through hole, the light guide rod comprises a cylindrical head and a cylindrical rod, the head is positioned in a hollow cavity on the inner side of the front sleeve, the cylindrical rod is installed in the front sleeve through hole in a clearance fit mode, and an inner sealing gasket is arranged between the head and the front sleeve. The utility model discloses can reduce the partial deviation of launching laser in transparent liquid, improve the monitoring effect of laser diffuse reflection sensor in liquid.
Description
Technical Field
The utility model relates to a laser diffuse reflection sensor technical field especially relates to a novel laser diffuse reflection sensor subassembly for in liquid.
Background
In recent years, laser diffuse reflection sensors are widely used for monitoring oil conditions in plunger diaphragm pumps, so as to determine whether diaphragms in the diaphragm pumps are damaged or not, and to facilitate timely maintenance. At present, the quality of a laser diffuse reflection sensor is greatly improved, for example, in chinese patent with application number 201721568911X and with patent name "laser diffuse reflection detection device and application thereof in plunger diaphragm pumps", the laser diffuse reflection detection device and application thereof in plunger diaphragm pumps are convenient to disassemble and assemble, small in size, reliable in signal transmission and good in sealing performance. However, in actual work, the situation that the existing laser diffuse reflection sensor cannot receive the reflected laser signal easily occurs when the existing laser diffuse reflection sensor is used in water pump monitoring, so that the laser diffuse reflection sensor cannot give an alarm in time. This is mainly because the laser emitted from the laser diffuse reflection sensor is easy to deflect, refract and scatter in the liquid, so that the sensor cannot receive the reflected laser signal.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a novel laser diffuse reflection sensor assembly for in liquid is provided with transparent solid leaded light stick at laser diffuse reflection sensor's front end, reduces the partial of launching laser in transparent liquid, improves the monitoring effect of laser diffuse reflection sensor in liquid, and the simple structure of device, easy dismounting, it is small.
The utility model discloses a following technical scheme realizes: a novel laser diffuse reflection sensor assembly used in liquid comprises a front sleeve, a middle sleeve, an inner sealing washer, a fixed pipe, a rear sleeve, a sleeve through hole, a laser diffuse reflection sensor and a light guide rod, wherein the front sleeve and the middle sleeve are integrally formed and are cylindrical, hollow cavities are formed in the inner side of the center, the diameter of the middle sleeve is larger than that of the front sleeve, and the diameter of a cylindrical hollow cavity in the middle sleeve is also larger than that of a cylindrical hollow cavity in the front sleeve; a cylindrical front sleeve through hole is formed in the center of the front end face of the front sleeve, the light guide rod comprises a cylindrical head and a cylindrical rod, the head is located in a hollow cavity on the inner side of the front sleeve, the cylindrical rod is installed in the front sleeve through hole in a clearance fit mode, a circular inner sealing washer is arranged between the head and the front sleeve, the cylindrical rod sequentially penetrates through the inner sealing washer and the front sleeve through hole, and the cylindrical rod extends out of the front end of the front sleeve; the inner wall of the front sleeve is provided with an internal thread, the fixed pipe is in a cylindrical shape with a hollow center, an external thread is arranged on the outer side of the fixed pipe, an external thread is arranged on the hollow column on the inner side of the fixed pipe, and the fixed pipe is installed in the front sleeve in a thread fit manner; the laser diffuse reflection sensor is installed inside the fixed pipe in a threaded fit mode, the tail portion of the laser diffuse reflection sensor is located in the middle sleeve, an internal thread is arranged on the inner wall of a hollow cavity of the rear portion of the middle sleeve, the rear sleeve is also cylindrical, an external thread is arranged on the outer side of the rear sleeve, the rear sleeve is installed on the rear portion of the middle sleeve in a threaded fit mode, a rear sleeve through hole is formed in the center of the rear sleeve, and a lead of the tail portion of the laser diffuse reflection sensor penetrates through the rear sleeve through hole and extends out of the rear sleeve.
Further, the light guide rod is a transparent organic glass light guide rod.
Further, the light guide rod is a transparent high borosilicate light guide rod.
Further, a circular elastic gasket is arranged between the front end of the laser diffuse reflection sensor and the rear end of the head.
Furthermore, an outer sealing gasket is sleeved on the outer side of the front sleeve and is located at the connecting position of the front sleeve and the middle sleeve.
Furthermore, the length of the cylindrical rod extending out of the front sleeve is 10-25 mm.
Compared with the prior art, the beneficial effects of the utility model reside in that: the novel laser diffuse reflection sensor component used in liquid of the utility model is arranged in the diaphragm pump through the external thread arranged outside the middle sleeve, the laser diffuse reflection sensor emits laser which passes through the light guide rod and then reaches the cavity of the plunger cylinder of the diaphragm pump, and the laser is reflected by the reflecting plate, the light guide rod is transparent organic glass or high borosilicate light guide rod, the light transmission is good, the laser is less deflected, refracted and scattered when transmitted in the plunger cylinder, when no liquid exists in the cavity of the plunger cylinder, the laser diffuse reflection sensor can better receive the laser reflected back after being transmitted, so that the sensor can receive signals more reliably, the monitoring effect of the laser diffuse reflection sensor in liquid is improved, if the laser signal reflected back is not received, the detected plunger cylinder cavity is indicated to have oil and other impurities, so that the pump body diaphragm can be judged to be damaged, and the pump needs to be stopped for maintenance.
Drawings
FIG. 1 is a full cross-sectional view of a novel laser diffuse reflection sensor assembly for use in liquids in accordance with the present invention;
fig. 2 is a front view of the light guide rod of the present invention.
In the figure: 1. a front sleeve; 2. a middle sleeve; 3. an inner sealing washer; 4. a fixed tube; 5. a rear sleeve; 6. a rear sleeve through hole; 7. a laser diffuse reflection sensor; 8. an outer seal gasket; 9. a light guide rod; 10. an elastic washer; 11. and (4) conducting wires.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
Example 1
As shown in fig. 1 and fig. 2, the novel laser diffuse reflection sensor assembly for liquid of the present invention comprises a front sleeve 1, a middle sleeve 2, an inner sealing washer 3, a fixed tube 4, a rear sleeve 5, a sleeve through hole 6, a laser diffuse reflection sensor 7 and a light guide rod 9, wherein the front sleeve 1 and the middle sleeve 2 are integrally formed, both of which are cylindrical, a hollow cavity is formed inside the center, the diameter of the middle sleeve 2 is larger than that of the front sleeve 1, the diameter of the cylindrical hollow cavity inside the middle sleeve 2 is also larger than that of the cylindrical hollow cavity inside the front sleeve 1, a cylindrical front sleeve through hole is formed in the center of the front end surface of the front sleeve 1, the light guide rod 9 comprises a cylindrical head 91 and a cylindrical rod 92, the head 91 is located inside the hollow cavity of the front sleeve 1, the cylindrical rod 92 is installed in the front sleeve through hole by clearance fit, the circular inner sealing washer 3 is arranged between the head 91 and the front sleeve 1, realize sealed between light guide rod head 91 and preceding sleeve pipe 1, interior seal ring 3, preceding sleeve pipe through-hole are passed in proper order to cylinder pole 92, and the length that cylinder pole 92 stretches out before sleeve pipe 1 is outer is 10 ~ 25mm, and light guide rod 9 is transparent organic glass or transparent borosilicate light guide rod, and its light transmissivity is good, and laser is when transmitting in transparent organic glass and borosilicate, and is partial to, refraction and scattering are less.
The inner wall of the front sleeve 1 is provided with an internal thread, the fixed pipe 4 is in a cylindrical shape with a hollow center, an external thread is arranged on the outer side of the fixed pipe 4, an external thread is arranged on a hollow column on the inner side of the fixed pipe 4, and the fixed pipe 4 is installed in the front sleeve 1 in a thread fit manner; laser diffuse reflection sensor 7 passes through screw-thread fit and installs inside fixed pipe 4, and the afterbody of laser diffuse reflection sensor 7 is located well sleeve pipe 2, is provided with circular shape elastic gasket 10 between the front end of laser diffuse reflection sensor 7 and the rear end of head 91 for when fixed pipe 4 inside fixed laser diffuse reflection sensor 7, can laser diffuse reflection sensor 7's front end. The laser diffuse reflection sensor 7 is made of the existing commercial product, such as TB12J-D15N1 laser diffuse reflection sensor of TAYB/Taibang brand, the shell of the laser diffuse reflection sensor is made of copper material and is provided with external threads, the detection distance can reach 20cm, the detection precision is high, and the fixation is convenient. The inner wall of the hollow cavity at the rear part of the middle sleeve 2 is provided with an internal thread, the rear sleeve 5 is also cylindrical, the outer side of the rear sleeve is provided with an external thread, the rear sleeve 5 is installed at the rear part of the middle sleeve 2 through thread fit, the center of the rear sleeve 5 is provided with a rear sleeve through hole 6, and a lead 11 at the tail part of the laser diffuse reflection sensor 7 penetrates through the rear sleeve through hole 6 and extends out of the rear sleeve 5. The outside cover of preceding sleeve pipe 1 is equipped with external seal packing ring 8, and external seal packing ring 8 is located the junction of preceding sleeve pipe 1 and well sleeve pipe 2 for well sleeve pipe 2 can increase sealed effect when installing in the diaphragm pump through the external screw thread that its outside set up.
The utility model discloses a novel laser diffuse reflection sensor subassembly for in liquid is installed in the diaphragm pump through the external screw thread that well sleeve pipe 2 outside set up, the cylinder pole 92 of the leaded light stick 9 of novel laser diffuse reflection sensor front end stretches into plunger cylinder intracavity, during operation, laser diffuse reflection sensor 7 launches laser, laser reaches plunger cylinder intracavity of diaphragm pump after passing leaded light stick 9, by the reflector panel reflection back, leaded light stick 9 is transparent organic glass or borosilicate leaded light stick, its light transmissivity is good, when laser transmits in it, deflection, refraction and scattering are less, when no liquid is in plunger cylinder intracavity, laser diffuse reflection sensor 7 can better receive the laser that reflects back after launching, make the sensor received signal more reliable, improve the monitoring effect of laser diffuse reflection sensor in liquid, if do not receive the laser signal that reflects back, the detected plunger cylinder cavity is indicated to have oil and other impurities, so that the pump body diaphragm can be judged to be damaged, and the pump needs to be stopped for maintenance.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (6)
1. A novel laser diffuse reflection sensor subassembly for in liquid which characterized in that: the laser diffuse reflection sensor comprises a front sleeve (1), a middle sleeve (2), an inner sealing washer (3), a fixed tube (4), a rear sleeve (5), a sleeve through hole (6), a laser diffuse reflection sensor (7) and a light guide rod (9), wherein the front sleeve (1) and the middle sleeve (2) are integrally formed and are both cylindrical, hollow cavities are formed in the inner sides of the centers, the diameter of the middle sleeve (2) is larger than that of the front sleeve (1), and the diameter of the cylindrical hollow cavity in the middle sleeve (2) is also larger than that of the cylindrical hollow cavity in the front sleeve (1); a cylindrical front sleeve through hole is formed in the center of the front end face of the front sleeve (1), the light guide rod (9) comprises a cylindrical head (91) and a cylindrical rod (92), the head (91) is located in a hollow cavity on the inner side of the front sleeve (1), the cylindrical rod (92) is installed in the front sleeve through hole in a clearance fit mode, a circular inner sealing washer (3) is arranged between the head (91) and the front sleeve (1), the cylindrical rod (92) sequentially penetrates through the inner sealing washer (3) and the front sleeve through hole, and the cylindrical rod (92) extends out of the front end of the front sleeve (1); the inner wall of the front sleeve (1) is provided with internal threads, the fixed pipe (4) is in a cylindrical shape with a hollow center, external threads are arranged on the outer side of the fixed pipe (4), external threads are arranged on a hollow column on the inner side of the fixed pipe (4), and the fixed pipe (4) is installed in the front sleeve (1) in a threaded fit manner; laser diffuse reflection sensor (7) are installed inside fixed pipe (4) through screw-thread fit, and the afterbody of laser diffuse reflection sensor (7) is located well sleeve pipe (2), be provided with the internal thread on the hollow intracavity wall in rear portion of well sleeve pipe (2), back sleeve pipe (5) also are cylindrical, and its outside is provided with the external screw thread, back sleeve pipe (5) are installed at the rear portion of well sleeve pipe (2) through screw-thread fit, and the central authorities of back sleeve pipe (5) are provided with back sleeve pipe through-hole (6), wire (11) of laser diffuse reflection sensor (7) afterbody pass back sleeve pipe through-hole (6) and stretch out back sleeve pipe (5) the outside.
2. The novel laser diffuse reflectance sensor assembly for use in liquids according to claim 1, wherein: the light guide rod (9) is a transparent organic glass light guide rod.
3. The novel laser diffuse reflectance sensor assembly for use in liquids according to claim 1, wherein: the light guide rod (9) is a transparent high borosilicate light guide rod.
4. A novel laser diffuse reflection sensor assembly for use in liquids according to claim 2 or 3, characterized in that: a round elastic gasket (10) is arranged between the front end of the laser diffuse reflection sensor (7) and the rear end of the head (91).
5. The novel laser diffuse reflectance sensor assembly for use in liquids according to claim 4, wherein: the outer side of the front sleeve (1) is sleeved with an outer sealing gasket (8), and the outer sealing gasket (8) is located at the joint of the front sleeve (1) and the middle sleeve (2).
6. The novel laser diffuse reflectance sensor assembly for use in liquids according to claim 5, wherein: the length of the cylindrical rod (92) extending out of the front sleeve (1) is 10-25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921773170.8U CN210894109U (en) | 2019-10-21 | 2019-10-21 | Novel laser diffuse reflection sensor assembly used in liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921773170.8U CN210894109U (en) | 2019-10-21 | 2019-10-21 | Novel laser diffuse reflection sensor assembly used in liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210894109U true CN210894109U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921773170.8U Active CN210894109U (en) | 2019-10-21 | 2019-10-21 | Novel laser diffuse reflection sensor assembly used in liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210894109U (en) |
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2019
- 2019-10-21 CN CN201921773170.8U patent/CN210894109U/en active Active
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