Photoelectric liquid level sensor for line protection

Abstract

The utility model relates to the field of photoelectric liquid level sensors, and particularly discloses a line-protected photoelectric liquid level sensor which comprises a sensor body, a display screen is arranged on the front face of the sensor body, the lower end of the sensor body is fixedly connected with a sensor wire, and the other end of the sensor wire is fixedly connected with a sensor plug. The upper end of the sensor plug and the lower end of the sensor body are fixedly connected with installation assemblies. By the adoption of the structure, the adjusting screw rod is driven to rotate by screwing the rotating handle, the adjusting screw rod rotates to push the first protection sleeve under the action of the adjusting screw hole in the surface of the adjusting disc, and the first protection sleeve is fixedly connected with the second protection sleeve; and the protection length can be increased when the first protection sleeve and the second protection sleeve are pushed, so that the protection length can be conveniently and flexibly adjusted, the practicability of the protection assembly is improved, and the use requirements of sensor wires with different lengths are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to photoelectric liquid level sensor field especially a line protection's photoelectric liquid level sensor. BACKGROUND

[0002] With the development of science and technology, various products appear in people's life, for example electronic products, children's toys, daily necessities, lighting equipment and sensors and the like, these products solve various problems encountered in people's life. As a product with wide application range in industry, the sensor is very popular among users, but the existing photoelectric liquid level sensor in the market needs to detect the height of the liquid level through the refraction and reflection of the prism, and a wire protection device is needed when the sensor is used.

[0003] A sensor wire protection assembly is disclosed in Chinese patent No. CN212968919U, particularly in the technical field of sensor wire protection, comprising a lower clamp frame and an upper clamp frame, both of which are U-shaped structures, the upper clamp frame is symmetrically clamped on the upper end of the lower clamp frame, and the front and rear sides of the left and right ends of the lower clamp frame are fixedly connected with lower lock seats. By clamping the sensor wire with the lower clamp frame and the upper clamp frame, inserting the plug plate into the slot of the clamping strip, and then passing the screw through the first, second and third lock holes, the lower clamp frame and the upper clamp frame can be easily installed and clamped around the sensor wire. Conversely, when disassembling, only the screw needs to be removed, and then the plug plate can be pulled out, so that the lower clamp frame and the upper clamp frame can be easily disassembled from the sensor wire, solving the technical problems of inconvenience in installation and disassembly of the sensor wire and inconvenience in adjusting the clamping point on the sensor wire in the prior art.

[0004] Through the above structure, the sensor wire protection assembly can clamp the sensor wire with the lower clamp frame and the upper clamp frame, insert the plug plate into the slot of the clamping strip, and then pass the screw through the first, second and third lock holes, so as to easily install and clamp the sensor wire with the lower clamp frame and the upper clamp frame. However, the length of the sensor wire in the prior art varies, and the above device cannot be flexibly adjusted according to the length of the wire during use, thereby reducing the practicality of the device, and it is inconvenient to install the protection device with the sensor wire, and it cannot be quickly installed. SUMMARY

[0005] The utility model aims at providing a line protection's photoelectric liquid level sensor to solve the problem of unable to adjust the length of the wire protection in the background technology.

[0006] The utility model provides a kind of photoelectric liquid level sensor of line protection, including sensor body, the front of the sensor body is provided with display screen, the lower end of the sensor body is fixedly connected with sensor lead, the other end of the sensor lead is fixedly connected with sensor plug, the upper end of the sensor plug and the lower end of sensor body are all fixedly connected with mounting assembly, the inboard of the mounting assembly is all fixedly connected with first protective sleeve and second protective sleeve, the outboard of the first protective sleeve is fixedly connected with adjusting assembly, the adjusting assembly includes the fixed disc of being arranged in the one side of the outer surface of first protective sleeve, the outer surface of the other side of the first protective sleeve is fixedly connected with adjusting disc, adjusting screw hole is opened in the outer surface of the adjusting disc, adjusting screw is screw-connected in the inside of adjusting screw hole, the other end of the adjusting screw is rotatably connected with fixed disc, the other end of the adjusting screw is fixedly connected with rotating handle and passes through fixed disc.

[0007] In further embodiments, the mounting assembly includes a plug-in frame arranged at the lower end of the sensor body and the upper end of the sensor plug, both ends of the first protective sleeve and the second protective sleeve are fixedly connected with plug-in blocks, the plug-in blocks and the plug-in frame are mutually plugged in.

[0008] In further embodiments, the outer side of the plug-in block is provided with a circular groove, the inside of the circular groove is fixedly connected with a clamping spring, the other end of the clamping spring is fixedly connected with a clamping head, both sides of the plug-in frame are provided with clamping holes, the clamping head and the clamping hole are mutually clamped.

[0009] In further embodiments, the outer side corners of the plug-in frame are all provided with fixing grooves, the fixing grooves are plugged in with fixing screws, the fixing screws are threadedly connected with the lower end of the sensor body and the upper end of the sensor plug and pass through the fixing grooves.

[0010] In further embodiments, the two side surfaces of the plug-in blocks at both ends of the first protective sleeve are all provided with mounting grooves, the mounting grooves are plugged in with mounting screws, both sides of the plug-in blocks at both ends of the second protective sleeve are provided with mounting screw holes, the mounting screws are threadedly connected with the mounting screw holes and pass through the mounting grooves.

[0011] In further embodiments, the outer side of the plug-in frame is fixedly connected with release springs at both sides of the clamping hole, the other end of the release spring is fixedly connected with a pressing plate, the inboard of the pressing plate is fixedly connected with a release block, the release block and the clamping hole are mutually plugged in, the release block and the clamping head are mutually movably connected.

[0012] In further embodiments, the first protective sleeve and the second protective sleeve each comprise a fixed protective sleeve arranged inside the insertion block, and the other end of the fixed protective sleeve is provided with an expansion insertion slot, and a sliding protective sleeve is inserted into the expansion insertion slot.

[0013] In further embodiments, the first protective sleeve and the second protective sleeve are each fixedly connected with a connecting plate, the surface of the connecting plate on the first protective sleeve is provided with a connecting slot, the connecting slot is inserted with a connecting screw, the surface of the connecting plate on the second protective sleeve is provided with a clamping slot, and the clamping slot is inserted with a connecting nut, and the connecting screw is threadedly connected with the connecting nut through the connecting slot and the connecting plate.

[0014] In further embodiments, the other end of the adjusting screw is threadedly connected with a limiting disc, the inner side of the limiting disc is fixedly connected with a limiting screw, and the other end of the adjusting screw is provided with a limiting screw hole, and the limiting screw hole and the limiting screw are threadedly connected with each other.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] First, the adjusting assembly, the first protective sleeve and the second protective sleeve are arranged, the first protective sleeve and the second protective sleeve are installed with the sensor lead wire, the fixed protective sleeve and the sliding protective sleeve are arranged after installation, the sensor lead wire is protected, when the sensor lead wire of the sensor body is long or short, the rotating knob is twisted to drive the adjusting screw to rotate, the adjusting screw is rotated to push the first protective sleeve under the action of the adjusting screw hole on the adjusting disc surface, the first protective sleeve and the second protective sleeve are fixedly connected, the protective length is increased when the first protective sleeve and the second protective sleeve are pushed, the protective length can be flexibly adjusted, the practicability of the protection assembly is increased, and the sensor lead wire of different lengths is used.

[0017] Second, the installation assembly is arranged, the first protective sleeve and the second protective sleeve are installed and adjusted, the protection structure is fixed with the sensor body, the insertion block is inserted into the insertion frame, the clamping head is extruded into the circular groove, the position of the clamping hole is consistent with the position of the circular groove when the insertion block is completely inserted into the insertion frame, the clamping head is popped out of the circular groove under the action of the clamping spring, the clamping head is clamped with the clamping hole, the clamping effect is achieved, the first protective sleeve and the second protective sleeve are installed, the installation efficiency of the first protective sleeve and the second protective sleeve is increased when used, and the clamping mode is used for installation, so that disassembly is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the utility model;

[0019] Figure 2 is a structural schematic view of the utility model in side view;

[0020] Figure 3 is a structural schematic view of the adjusting assembly in the utility model;

[0021] Figure 4 is a structural schematic view of the second protective sleeve in the utility model;

[0022] Figure 5 is a structural schematic view of the mounting assembly in the utility model;

[0023] Figure 6 is a structural schematic view of the B part of the utility model; Figure 2

[0024] Figure 7 is a structural schematic view of the C part of the utility model; Figure 3

[0025] Figure 8 is a structural schematic view of the A part of the utility model. Figure 1

[0026] In the drawing: 1, sensor body; 111, display screen; 2, sensor wire; 3, sensor plug; 4, mounting assembly; 41, plug block; 42, round groove; 43, clamping spring; 44, clamping head; 45, plug frame; 46, clamping hole; 5, first protective sleeve; 6, second protective sleeve; 61, fixed protective sleeve; 62, telescopic insertion slot; 63, sliding protective sleeve; 7, adjusting assembly; 71, fixed disc; 72, adjusting disc; 73, adjusting screw hole; 74, adjusting screw; 75, rotating handle; 8, mounting slot; 9, mounting screw; 10, mounting screw hole; 11, connecting plate; 12, connecting slot; 13, connecting screw; 14, clamping slot; 15, connecting nut; 16, fixed slot; 17, fixed screw; 18, release spring; 19, pressing plate; 20, release block; 21, limiting screw hole; 22, limiting disc; 23, limiting screw. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.​​​

[0028] Referring to Figures 1-8 The utility model discloses an optical liquid level sensor of line protection, including sensor body 1, the front of sensor body 1 is provided with display screen 111, the lower end of sensor body 1 is fixedly connected with sensor lead 2, the other end of sensor lead 2 is fixedly connected with sensor plug 3, the upper end of sensor plug 3 and the lower end of sensor body 1 are all fixedly connected with mounting assembly 4, the inboard of mounting assembly 4 is all fixedly connected with first protective sleeve 5 and second protective sleeve 6, the outside of first protective sleeve 5 is fixedly connected with adjusting assembly 7, adjusting assembly 7 includes the fixed disc 71 of setting at the one side of the outer surface of first protective sleeve 5, the other side of the outer surface of first protective sleeve 5 is fixedly connected with adjusting disc 72, the outer surface of adjusting disc 72 is opened with adjusting screw hole 73, the inside screw thread of adjusting screw hole 73 is connected with adjusting screw rod 74, the other end of adjusting screw rod 74 is rotatably connected with fixed disc 71, and the other end of adjusting screw rod 74 is fixedly connected with rotating handle 75 and passes through fixed disc 71.

[0029] Referring to Figures 3-6 The utility model discloses an optical liquid level sensor of line protection, including sensor body 1, the front of sensor body 1 is provided with display screen 111, the lower end of sensor body 1 is fixedly connected with sensor lead 2, the other end of sensor lead 2 is fixedly connected with sensor plug 3, the upper end of sensor plug 3 and the lower end of sensor body 1 are all fixedly connected with mounting assembly 4, the inboard of mounting assembly 4 is all fixedly connected with first protective sleeve 5 and second protective sleeve 6, the outside of first protective sleeve 5 is fixedly connected with adjusting assembly 7, adjusting assembly 7 includes the fixed disc 71 of setting at the one side of the outer surface of first protective sleeve 5, the other side of the outer surface of first protective sleeve 5 is fixedly connected with adjusting disc 72, the outer surface of adjusting disc 72 is opened with adjusting screw hole 73, the inside screw thread of adjusting screw hole 73 is connected with adjusting screw rod 74, the other end of adjusting screw rod 74 is rotatably connected with fixed disc 71, and the other end of adjusting screw rod 74 is fixedly connected with rotating handle 75 and passes through fixed disc 71.

[0030] Referring to Figure 5 The outside corner of plug-in frame 45 is all opened with fixed groove 16, and fixed screw 17 is inserted into the inside of fixed groove 16, and fixed screw 17 is screw-connected with the lower end of sensor body 1 and the upper end of sensor plug 3 through fixed groove 16; by the inside of fixed groove 16 of plug-in frame 45 outside being inserted with fixed screw 17 and being screw-connected with sensor plug 3 and sensor body 1, it can be convenient to install plug-in frame 45, and it is also more convenient when the plug-in frame 45 is disassembled by screwing.

[0031] Referring to Figure 3 andFigure 4 The two side surfaces of the plug-in blocks 41 at the two ends of the first protective sleeve 5 are provided with mounting grooves 8, mounting screws 9 are inserted into the mounting grooves 8, mounting screw holes 10 are provided on the two sides of the plug-in blocks 41 at the two ends of the second protective sleeve 6, and the mounting screws 9 are threadedly connected with the mounting screw holes 10 by penetrating the mounting grooves 8. The mounting screws 9 are threadedly connected with the mounting screw holes 10 on the surfaces of the plug-in blocks 41 at the two ends of the second protective sleeve 6 by penetrating the mounting grooves 8, so that the plug-in blocks 41 can be assembled, and the sensor wires 2 can be clamped and wrapped, thereby fixing the plug-in blocks 41 together to increase the stability of the plug-in blocks 41.

[0032] Please refer to Figure 5 The outer sides of the plug-in frames 45 located on the two sides of the clamping holes 46 are fixedly connected with release springs 18, the other ends of the release springs 18 are fixedly connected with pressing plates 19, the inner sides of the pressing plates 19 are fixedly connected with release blocks 20, the release blocks 20 are inserted with the clamping holes 46, and the release blocks 20 are movably connected with the clamping heads 44. When the first protective sleeve 5 and the second protective sleeve 6 are disassembled, the release blocks 20 on the inner sides of the pressing plates 19 enter the interiors of the clamping holes 46 by pressing the pressing plates 19 downward, the clamping heads 44 can be pushed out of the clamping holes 46 after the release blocks 20 enter the interiors of the clamping holes 46, and the first protective sleeve 5 and the second protective sleeve 6 can be conveniently disassembled after the clamping holes 46 and the clamping heads 44 are released.

[0033] Please refer to Figures 1-4 The first protective sleeve 5 and the second protective sleeve 6 each include a fixed protective sleeve 61 arranged on the inner side of the plug-in block 41, the other end of the fixed protective sleeve 61 is provided with an expansion slot 62, a sliding protective sleeve 63 is inserted into the expansion slot 62, and the fixed protective sleeve 61 is slidably inserted on the outer surface of the sliding protective sleeve 63 through the expansion slot 62. The first protective sleeve 5 and the second protective sleeve 6 can protect the sensor wires 2, and the sliding protective sleeve 63 inserted into the first fixed protective sleeve 61 can indirectly adjust the distance between the two fixed protective sleeves 61, so that the sensor wires 2 of different lengths can be used, thereby increasing the practicability of the first protective sleeve 5 and the second protective sleeve 6 and improving the protection effect.

[0034] Please refer to Figure 3 and Figure 4The two sides of the first protective sleeve 5 and the second protective sleeve 6 are fixedly connected with the connecting plates 11, the surfaces of the connecting plates 11 on the two sides of the first protective sleeve 5 are provided with the connecting grooves 12, the connecting grooves 12 are inserted with the connecting screws 13, the surfaces of the connecting plates 11 on the two sides of the second protective sleeve 6 are provided with the clamping grooves 14, the clamping grooves 14 are inserted with the connecting nuts 15, and the connecting screws 13 are in threaded connection with the connecting nuts 15 through the connecting grooves 12 and the connecting plates 11.

[0035] Please refer to Figure 7 and Figure 8 The other end of the adjusting screw 74 is in threaded connection with a limiting disc 22, the inner side of the limiting disc 22 is fixedly connected with a limiting screw 23, the other end of the adjusting screw 74 is provided with a limiting screw hole 21, and the limiting screw hole 21 is in threaded connection with the limiting screw 23; the limiting disc 22 can limit the adjusting screw 74 during use, so that the limiting screw 23 is prevented from being screwed too much to cause the adjusting screw 74 to be separated from the adjusting screw hole 73, and the limiting screw 23 and the limiting screw hole 21 are installed, so that the limiting disc 22 is more convenient to disassemble.

[0036] The working principle of this utility model is as follows: First, by inserting the connecting screw 13 into the connecting groove 12, the connecting screw 13 passes through the connecting groove 12 and is threadedly connected to the connecting plate 11 and the connecting nut 15, thereby fixing the first protective sleeve 5 and the second protective sleeve 6. This allows the sensor wire 2 to be wrapped under the action of the first protective sleeve 5 and the second protective sleeve 6, achieving effective protection. Then, by threading the mounting screw 9 through the mounting groove 8 and the mounting screw holes 10 on the surface of the plug-in block 41 at both ends of the second protective sleeve 6, the plug-in block 41 can be assembled. Simultaneously, by clamping and wrapping the sensor wire 2, the plug-in block 41 is fixed together, increasing the number of plug-in blocks. The stability of 41 is ensured by threading the fixing screw 17 through the fixing groove 16 on the outside of the plug frame 45 to the sensor plug 3 and the sensor body 1, making it easy to install the plug frame 45. Then, the plug block 41 is inserted into the plug frame 45. During insertion, the snap-fit ​​connector 44 is squeezed into the round groove 42. After the plug block 41 is fully inserted into the plug frame 45, the position of the snap-fit ​​hole 46 is aligned with the position of the round groove 42. At this time, the snap-fit ​​connector 44 will pop out of the round groove 42 under the action of the snap-fit ​​spring 43, so that the snap-fit ​​connector 44 and the snap-fit ​​hole 46 are snapped together, thus achieving the snap-fit ​​effect. This allows the first protective sleeve 5 and the second protective sleeve 6 to be installed. This design ensures immediate protection upon installation. The first protective sleeve 5 and the second protective sleeve 6 protect the sensor wire 2. A sliding protective sleeve 63, inserted inside the first fixed protective sleeve 61, allows for adjustment of the two fixed protective sleeves 61, accommodating sensor wires 2 of varying lengths. This enhances the practicality and protective effect of the first and second protective sleeves 5 and 6. When dealing with different sensor bodies 1 for the sensor wire 2, turning the rotating handle 75 rotates the adjusting screw 74. The rotation of the adjusting screw 74, through the adjusting screw hole 73 on the surface of the adjusting disc 72, pushes the first protective sleeve 5. The first protective sleeve 5 and the second protective sleeve 6... The sleeve 6 is fixedly connected, which increases the protective length when pushing the first protective sleeve 5 and the second protective sleeve 6. This allows for convenient and flexible adjustment of the protective length, increasing the practicality of the protective component and accommodating sensor wires 2 of varying lengths. The limiting plate 22 allows the adjusting screw 74 to be limited during use, preventing the limiting screw 74 from disengaging from the adjusting screw hole 73 due to excessive turning. The installation of the limiting screw 23 and the limiting screw hole 21 also facilitates the disassembly of the limiting plate 22. When it is necessary to disassemble the first protective sleeve 5 and the second protective sleeve 6, pressing down on the pressing plate 19 causes the release block 20 inside the pressing plate 19 to enter the locking hole 46.When the releasing block 20 enters the inside of the clamping hole 46, the clamping head 44 can be pushed out of the clamping hole 46, so that the first protective sleeve 5 and the second protective sleeve 6 can be conveniently disassembled after the clamping hole 46 and the clamping head 44 are disengaged.

Claims

1. A line-protected optoelectronic liquid level sensor, characterized in that The utility model provides a sensor, including sensor body, the front surface of sensor body is provided with display screen, the lower extreme of sensor body is fixedly connected with sensor lead, the other end of sensor lead is fixedly connected with sensor plug, the upper end of sensor plug and the lower extreme of sensor body are all fixedly connected with mounting assembly, the inboard of mounting assembly all is fixedly connected with first protective sleeve and second protective sleeve, the outboard of first protective sleeve is fixedly connected with adjusting assembly, adjusting assembly includes the fixed disc of setting in first protective sleeve outer surface one side, the outer surface other side of first protective sleeve is fixedly connected with adjusting disc, the outer surface of adjusting disc is opened adjusting screw hole, the inside screw thread of adjusting screw hole is connected with adjusting screw rod, the other end of adjusting screw rod is rotatably connected with fixed disc, the other end of adjusting screw rod is fixedly connected with rotating handle through fixed disc.

2. An opto-electric liquid level sensor for line protection according to claim 1, characterized in that The mounting assembly includes a plug-in frame arranged at the lower end of the sensor body and the upper end of the sensor plug, both ends of the first protective sleeve and the second protective sleeve are fixedly connected with plug-in blocks, and the plug-in blocks and the plug-in frame are mutually plugged.

3. An opto-electric liquid level sensor for line protection according to claim 2, characterized in that The outer side of the plug-in block is provided with a circular groove, the inside of the circular groove is fixedly connected with a clamping spring, the other end of the clamping spring is fixedly connected with a clamping head, both sides of the plug-in frame are provided with clamping holes, and the clamping head and the clamping holes are mutually clamped.

4. An opto-electric liquid level sensor for line protection according to claim 3, characterized in that The outer corners of the plug-in frame are provided with fixing grooves, the fixing grooves are internally plugged with fixing screws, and the fixing screws are threadedly connected with the lower end of the sensor body and the upper end of the sensor plug through the fixing grooves.

5. An opto-electric liquid level sensor for line protection according to claim 4, characterized in that The plug-in blocks at both ends of the first protective sleeve are provided with mounting grooves on both side surfaces, the mounting grooves are internally plugged with mounting screws, the plug-in blocks at both ends of the second protective sleeve are provided with mounting screw holes on both sides, and the mounting screws are threadedly connected with the mounting screw holes.

6. An opto-electric liquid level sensor for line protection according to claim 5, characterized in that The outer side of the plug-in frame is fixedly connected with release springs on both sides of the clamping holes, the other end of each release spring is fixedly connected with a pressing plate, the inner side of each pressing plate is fixedly connected with a release block, the release block and the clamping hole are mutually plugged, and the release block and the clamping head are movably connected.

7. An opto-electric liquid level sensor for line protection according to claim 1, characterized in that, The first protective sleeve and the second protective sleeve each include a fixed protective sleeve arranged on the inner side of the plug-in block, the other end of the fixed protective sleeve is provided with an elastic insertion groove, the elastic insertion groove is internally plugged with a sliding protective sleeve, and the fixed protective sleeve slides and is plugged on the outer surface of the sliding protective sleeve through the elastic insertion groove.

8. An opto-electric liquid level sensor for line protection according to claim 7, characterized in that Both sides of the first protective sleeve and the second protective sleeve are fixedly connected with connecting plates, the surface of the connecting plate on both sides of the first protective sleeve is provided with a connecting groove, the connecting groove is internally plugged with a connecting screw, the surface of the connecting plate on both sides of the second protective sleeve is provided with a clamping groove, the clamping groove is internally plugged with a connecting nut, and the connecting screw is threadedly connected with the connecting nut through the connecting groove and the connecting plate.

9. The photoelectric liquid level sensor of claim 1, wherein, The other end of the adjusting screw rod is threadedly connected with a limiting disc, the inner side of the limiting disc is fixedly connected with a limiting screw rod, the other end of the adjusting screw rod is provided with a limiting screw hole, and the limiting screw hole and the limiting screw rod are threadedly connected with each other.

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