Knob type inductor

Abstract

A knob type inductor comprises a shell, a circuit board, a rotary adjusting piece and a knob handle. The shell comprises a mounting shell with an opening and an end cover, a mounting cavity is formed in the mounting shell, the circuit board is arranged in the mounting cavity, the rotary adjusting part is connected to the circuit board, and the end cover covers the opening; an avoiding hole and a through hole are formed in the protective shell and the mounting shell respectively, an adjusting hole is formed in the rotary adjusting piece, and the avoiding hole, the through hole and the adjusting hole are oppositely arranged; the knob handle comprises an inner handle and an outer handle, the two ends of the inner handle are an inserting part and a first connecting part respectively, the inserting part penetrates through the through hole to be inserted into the adjusting hole, the first connecting part is located in the through hole, the two ends of the outer handle are a second connecting part and a handle respectively, the second connecting part is fixedly connected with the first connecting part, and the handle protrudes out of the protective shell. Compared with the prior art, the knob type inductor is convenient to use, the strength of the protective shell is not affected, and meanwhile damage to the rotary adjusting piece is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of sensors, and in particular relates to a knob-type sensor. Background Art

[0002] Normally, sensor manufacturers will sell various sensors to lighting manufacturers, and lighting manufacturers will then install the purchased sensors on various types of lighting and sell them to achieve the purpose of intelligent control of lighting.

[0003] Taking the human infrared sensor as an example, the human infrared sensor sold by the sensor manufacturer generally includes a sensor body 6 and a knob handle 4. In order to protect the sensor, the lamp manufacturer will set a protective shell 5, which is covered outside the sensor to protect the sensor.

[0004] The existing human infrared sensors are designed into the following three types. The first type is, see Figure 1 After the assembly, the knob handle 4 is recessed in the surface of the sensor body 6. During the assembly of the sensor body 6 into the protective shell 5, since the knob handle 4 is recessed in the surface of the sensor body 6, the sensor body 6 can be easily installed in the protective shell 5. However, the disadvantage is that when consumers need to set the function, they need to use a screwdriver or other tools to turn the knob, which has poor operational convenience and experience. The second type is, see Figure 2 , the knob handle 4 protrudes from the surface of the sensor body 6. When setting the function of this sensor, no other tools are needed, and the knob handle 4 can be directly turned to adjust it. However, its defect is that the protective shell 5 needs to add a notch 52 for the knob handle to pass through, which leads to poor strength and aesthetics of the protective shell 5. The third type is basically the same as the second type, that is, the knob handle 4 protrudes from the surface of the sensor body 6. The difference is that the protective shell 5 does not need to be provided with a notch 52. The knob handle is installed on the sensor body by the lamp manufacturer. Although this type of sensor is also easy to use, during the process of assembling the knob handle, the lamp manufacturer has difficulty in aligning the knob handle with the adjustment hole of the human infrared sensor in the sensor body due to the darkness inside the sensor body and the lack of assembly experience of the lamp manufacturer. The operation efficiency is low, and the knob handle may even poke the adjustment hole and damage the sensor. In addition, it is also easy for the connection position of the knob handle to not correspond to the indicated position, resulting in the problem that the rotation angle and adjustment amount of the knob handle cannot be clearly known in later use.

[0005] For the third type of sensor mentioned above, some existing lamp manufacturers give the protective shell 5 to the sensor manufacturer first, and let the sensor manufacturer install the sensor into the protective shell. After assembly, the assembled product is given to the lamp manufacturer. However, since the protective shell needs to be transported back and forth, it is very troublesome. For this reason, some lamp manufacturers ask the sensor manufacturer to make the shell. However, since there are many types of lamps in reality, the shapes and sizes of the sensor protective shells of various products are inconsistent, and it is difficult for the sensor manufacturer to produce the corresponding protective shell. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a knob-type sensor.

[0007] To achieve the above objectives, the present invention discloses a knob-type sensor, comprising a housing, a circuit board, a rotary adjustment member and a knob handle;

[0008] The housing comprises a mounting shell with an opening and an end cover, the mounting shell is provided with a mounting cavity, the circuit board is arranged in the mounting cavity, the rotary adjustment member is connected to the circuit board, and the end cover covers the opening;

[0009] The protective shell and the mounting shell are respectively provided with an avoidance hole and a through hole, the rotary adjustment member is provided with an adjustment hole, and the avoidance hole, the through hole and the adjustment hole are arranged relative to each other;

[0010] The knob handle includes an inner handle and an outer handle, the two ends of the inner handle are respectively an inserting part and a first connecting part, the inserting part passes through the through hole and is inserted into the adjustment hole, the first connecting part is located in the through hole, the two ends of the outer handle are respectively a second connecting part and a handle, the second connecting part is fixedly connected to the first connecting part, and the handle protrudes to the outside of the protective shell.

[0011] Preferably, the assembly steps of the knob-type sensor are:

[0012] Step S1, connecting the rotary adjustment member to the circuit board, and then installing the circuit board in the installation cavity of the installation shell;

[0013] Step S2, passing the plug-in portion of the inner handle through the through hole until the plug-in portion is plugged into the adjustment hole;

[0014] Step S3, connecting the end cover to the mounting shell so that the end cover covers the opening of the mounting cavity;

[0015] Step S4, installing the housing assembled in step S3 into the protective housing;

[0016] Step S5: When installing the knob-type sensor, the lamp assembler connects the second connection part to the first connection part to fix the outer handle to the inner handle, thereby completing the assembly of the knob-type sensor.

[0017] Preferably, one of the inner handle and the outer handle is provided with a connecting hole, and the other is provided with a connecting rod, and the connecting hole and the connecting rod are interference-connected;

[0018] The first connection portion is the connection hole or the connection rod, and the second connection portion is the connection rod or the connection hole.

[0019] Preferably, the mouth of the connecting hole expands outward to form a flared portion.

[0020] Preferably, an outer side wall of the end of the inner handle away from the rotary adjusting member is provided with a boss, and a mark is provided on the boss.

[0021] Preferably, the outer side wall of the outer handle is provided with a sleeve portion, and the sleeve portion is sleeved on the boss.

[0022] Preferably, the handle is shaped like an arrow.

[0023] Preferably, the outer side wall of the inner handle is provided with a limiting portion, and the limiting portion is matched with the inner side wall of the mounting shell.

[0024] Preferably, a guiding slope is provided between the limiting portion and the outer side wall of the inner handle.

[0025] Preferably, the through hole comprises a receiving groove and a receiving hole arranged from inside to outside, the bottom of the receiving groove passes through, a sealing member is arranged in the receiving groove, and the first connecting portion is located in the receiving hole.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The knob handle of the present invention comprises an inner handle and an outer handle, wherein the two ends of the inner handle are respectively an inserting portion and a first connecting portion, the inserting portion passes through a through hole and is inserted into an adjusting hole, and the two ends of the outer handle are respectively a second connecting portion and a handle, the second connecting portion is fixedly connected to the first connecting portion, thereby fixing the outer handle to the inner handle.

[0028] By setting the knob handle as a separate inner handle and outer handle, when assembling the sensor, the sensor manufacturer can first pass the inner handle through the through hole of the mounting shell until the plug-in portion is plugged into the adjustment hole of the rotary adjustment member, and the outer handle is not temporarily installed on the inner handle; when the outer shell is installed in the protective shell, since the first connecting portion is located in the through hole and the outer handle is not connected to the inner handle, this avoids the inner handle and the outer handle from interfering with the protective shell and affecting the assembly of the shell. Since the inner handle is assembled by the sensor manufacturer, this can ensure the connection reliability and assembly efficiency, greatly reducing the problem of the inner handle not being able to align with the adjustment hole of the rotary adjustment member and the inner handle poking the rotary adjustment member, resulting in low connection reliability and slow efficiency.

[0029] After all other structures are assembled, the outer handle is connected to the inner handle, and the handle protrudes to the outside of the protective shell, which makes it easy for consumers to adjust the knob handle and use it conveniently. In addition, the outer handle is directly connected to the first connection part through the second connection part, and the protective shell does not need to be provided with a notch as in the prior art, which improves the strength and service life of the protective shell, and also makes the sensor more beautiful and improves its market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional decomposition structure of a human infrared sensor in the prior art;

[0031] Figure 2 It is a schematic diagram of the three-dimensional decomposition structure of another human infrared sensor in the prior art;

[0032] Figure 3 It is a schematic diagram of the three-dimensional structure of the knob-type sensor in Example 1;

[0033] Figure 4 for Figure 3 Schematic diagram of the three-dimensional exploded structure of the knob-type sensor;

[0034] Figure 5 for Figure 3 A cross-sectional view of a knob-type sensor;

[0035] Figure 6 for Figure 5 A local enlarged schematic diagram of the middle A;

[0036] Figure 7 for Figure 3 Schematic diagram of the three-dimensional structure of the middle inner handle;

[0037] Figure 8 for Figure 3 Schematic diagram of the three-dimensional structure of the middle and outer handles;

[0038] Fig. 9 for Figure 3 Schematic diagram of the three-dimensional decomposition structure of the middle and outer handle from another perspective;

[0039] Fig.10 It is a schematic diagram of the three-dimensional structure of another knob-type sensor in Example 2;

[0040] Fig.11 It is a schematic diagram of the three-dimensional structure of another knob-type sensor in Example 3;

[0041] Fig.12 for Fig.11 Schematic diagram of the three-dimensional exploded structure of the knob-type sensor;

[0042] Fig.13 for Fig.11A side view of a knob-type sensor with a printed pattern;

[0043] Fig.14 Schematic diagram of the three-dimensional structure of another knob-type sensor in Example 4

[0044] Fig.15 for Fig.14 Schematic diagram of the three-dimensional exploded structure of the knob-type sensor;

[0045] Housing 1; mounting shell 11; mounting cavity 111; opening 112; through hole 113; receiving groove 1131; receiving hole 1132; printed pattern 114; end cover 12;

[0046] Circuit board 2;

[0047] Rotating adjustment member 3; adjustment hole 31;

[0048] Knob handle 4; inner handle 41; plug-in portion 411; first connection portion 412; flared portion 4121; boss 413; mark 4131; limit portion 414; guide slope 415; outer handle 42; second connection portion 421; handle 422; sleeve portion 423;

[0049] Protective shell 5; avoidance hole 51; notch 52;

[0050] Sensor body 6; lens 61. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] Example 1

[0053] For the convenience of explanation, the knob-type sensor in this embodiment includes a protective shell 5. In practice, the sensor in this embodiment is aimed at the case where the protective shell 5 is manufactured by a lamp manufacturer. The sensor manufacturer provides the sensor to the lamp manufacturer, and the lamp manufacturer assembles the sensor into the protective shell by itself.

[0054] A knob-type sensor, see Figure 3-Figure 9, including a shell 1, a circuit board 2, a rotary adjustment member 3 (preferably a variable resistor), a knob handle 4 and a protective shell 5. The shell 1 includes a mounting shell 11 with an opening 112 and an end cover 12. The mounting shell 11 is provided with a mounting cavity 111. The circuit board 2 is installed in the mounting cavity 111 through the opening 112 of the mounting shell 11. The rotary adjustment member 3 is connected to the circuit board 2; the end cover 12 covers the opening 112, and the shell 1 is assembled. After the shell 1 is assembled, the shell 1 is arranged in the protective shell 5. The protective shell 5 can not only protect the shell 1 and the electronic components inside it, but also, taking a lamp as an example, the protective shell 5 can be designed to be consistent with the appearance and color of the lamp, thereby ensuring the appearance of the product.

[0055] Among them, the protective shell 5 and the mounting shell 11 are respectively provided with an avoidance hole 51 and a through hole 113, and the rotary adjustment member 3 is provided with an adjustment hole 31, and the avoidance hole 51, the through hole 113 and the adjustment hole 31 are arranged relatively. The knob handle 4 includes an inner handle 41 and an outer handle 42, and the two ends of the inner handle 41 are respectively a plug-in portion 411 and a first connecting portion 412, and the two ends of the outer handle 42 are respectively a second connecting portion 421 and a handle 422. When assembling the inner handle 41, the plug-in portion 411 passes through the through hole 113 and is plugged into the adjustment hole 31. At this time, the first connecting portion 412 is located in the through hole 113; when assembling the outer handle 42, the second connecting portion 421 is fixedly connected to the first connecting portion 412, and the handle 422 protrudes to the outside of the protective shell 5 for consumers to use.

[0056] In this embodiment, the knob handle 4 is provided as a separate inner handle 41 and outer handle 42. In this way, when assembling the sensor, the sensor manufacturer can first pass the inner handle 41 through the through hole 113 of the mounting shell 11 until the plug-in portion 411 is plugged into the adjustment hole 31 of the rotary adjustment member 3, and the outer handle 42 is temporarily not installed on the inner handle 41; when the outer shell is subsequently installed in the protective shell 5, since the first connecting portion 412 is located in the through hole 113 at this time, and the outer handle 42 is not connected to the inner handle 41, this avoids the inner handle 41 and the outer handle 42 from interfering with the protective shell 5 and affecting the assembly of the shell 1. Since the inner handle 41 is assembled by the sensor manufacturer, this can ensure the connection reliability and assembly efficiency, and greatly reduce the problems of low connection reliability and slow efficiency caused by the inner handle 41 not being able to align with the adjustment hole 31 of the rotary adjustment member 3 and the inner handle 41 damaging the rotary adjustment member 3. After all other structures are assembled, the outer handle 42 is connected to the inner handle 41. After the outer handle 42 is connected to the inner handle 41, the handle 422 protrudes to the outside of the protective shell 5, which is convenient for consumers to adjust the knob handle 4 and is convenient to use. In addition, the outer handle 42 is directly connected to the first connection part 412 through the second connection part 421, and the protective shell 5 does not need to be provided with a notch 52 as in the prior art, which improves the strength and service life of the protective shell 5, and also makes the sensor more beautiful and improves the market value.

[0057] In order to further prevent the inner handle 41 from failing to align with the adjustment hole 31 of the rotary adjustment member 3 during the assembly process and the inner handle 41 from damaging the rotary adjustment member 3, in this embodiment, the assembly steps of the knob-type sensor are as follows:

[0058] Step S1, connecting the rotary adjustment member 3 to the circuit board 2, and then installing the circuit board 2 in the installation cavity 111 of the installation shell 11;

[0059] Step S2, passing the plug-in portion 411 of the inner handle 41 through the through hole 113 until the plug-in portion 411 is plugged into the adjustment hole 31;

[0060] Step S3, connecting the end cover 12 to the mounting shell 11, so that the end cover 12 covers the opening 112 of the mounting cavity 111;

[0061] Step S4, installing the housing 1 assembled in step S3 into the protective housing 5;

[0062] Step S5: When installing the knob-type sensor, the lamp assembler connects the second connection part 421 with the first connection part 412 to fix the outer handle 42 to the inner handle 41, thereby completing the assembly of the knob-type sensor.

[0063] The inner handle 41 is connected before the end cover 12 is closed. In this way, the docking of the inner handle 41 and the adjustment hole 31 of the rotary adjustment member 3 can be clearly seen through the opening 112 of the mounting shell 11, ensuring that the two can be aligned and accurately plugged in. This can improve the connection accuracy of the inner handle 41, make the position of the inner handle 41 correspond to the position of the adjustment hole 31, and improve the accuracy of use (for example, the function of the knob handle 4 is to adjust the light on time, and the light on time of the adjustment hole 31 is 10s. At this time, the light on time of the position corresponding to the inner handle 41 is 10s. The duration is also 10s), so as to avoid the problem that the position of the inner handle 41 does not correspond to the position of the adjustment hole 31, resulting in the user not being clear about the actual lighting duration (for example, the lighting duration of the adjustment hole 31 is 10s, but the lighting duration of the position corresponding to the inner handle 41 is not 10s). In addition, the inner handle 41 is connected before closing the end cover 12. The installation status of the inner handle 41 can be clearly seen through the opening 112 of the mounting shell 11, and the inner handle 41 can be prevented from damaging the rotating adjustment part 3, which greatly improves the yield rate and improves the assembly efficiency.

[0064] In this embodiment, a boss 413 is provided on the outer wall of the end of the inner handle 41 away from the rotary adjustment member 3, and a mark 4131 is provided on the boss 413. The mark can be aligned with the position of the adjustment hole 31 to ensure the connection accuracy, and can also be used for alignment of the outer handle 42 to ensure the connection accuracy of the outer handle 42.

[0065] In this embodiment, one of the inner handle 41 and the outer handle 42 is provided with a connecting hole, and the other is provided with a connecting rod. Specifically, the inner handle 41 is provided with a connecting hole, and the cross-sectional shape of the connecting hole is hexagonal, and the outer handle 42 is provided with a connecting rod, and the shape of the connecting rod is cylindrical, and the connecting hole and the connecting rod are interference connected. The above tight fit of the inner handle and the outer handle is achieved through the interference connection between the connecting rod and the connecting hole. Compared with conventional connection methods such as snap connection, this has a simple structure, is easy to process and assemble, and can also improve the connection reliability; a cylindrical connecting rod is used to match the connecting hole with a hexagonal cross-sectional shape, and there are multiple line contacts between the connecting rod and the connecting hole, which is easier to assemble than a connecting rod with a hexagonal cross-sectional shape. In addition, the connecting rod can be set with a larger interference amount to ensure the tight fit effect; in addition, by making full use of the feature of no gap between the interference connection, no virtual position will be generated between the outer handle 42 and the inner handle 41, and the rotation angle of the outer handle 42 can be accurately transmitted to the inner handle 41, and then transmitted to the adjustment hole 31, to ensure the rotation adjustment accuracy.

[0066] The connection hole is the first connection part 412 , and the connection rod is the second connection part 421 .

[0067] In order to improve the connection reliability between the inner handle and the outer handle and avoid falling off, the connection hole and the connection rod are fixed with glue. Of course, in other optional embodiments, the first connection part and the second connection part can also be existing conventional connection structures such as buckle structures. However, due to the small actual size of the product, these connection structures are difficult to manufacture and there will be virtual positions during use, which affects the rotation adjustment accuracy and use effect.

[0068] In this embodiment, the mouth of the connection hole expands outward to form a flared portion 4121, which facilitates the insertion of the connection rod into the connection hole, facilitates assembly, and reduces the difficulty of connection caused by interference connection.

[0069] In this embodiment, the outer wall of the outer handle 42 is provided with a sleeve portion 423, and the sleeve portion 423 is sleeved on the boss 413. In this way, when the outer handle 42 is connected to the inner handle 41, the sleeve portion 423 of the outer handle 42 is sleeved on the boss 413 of the inner handle 41. At this time, the end face and the outer wall of the boss 413 are abutted against the bottom face and the inner wall of the sleeve portion 423, which further improves the connection reliability between the inner handle 41 and the outer handle 42, and at the same time can further reduce the virtual position generated between the inner handle 41 and the outer handle 42, thereby improving the adjustment accuracy of the knob handle 4.

[0070] Among them, in order to make the inner handle and the outer handle have a unique installation position so that there will be no relative rotation between the inner handle and the outer handle, thereby ensuring the rotational adjustment effect of the knob handle, one side of the boss of the inner handle is large and the other side is small. After the sleeve part is sleeved on the boss, the inner handle and the outer handle can remain relatively fixed and will not rotate relative to each other, thereby improving the rotational adjustment effect of the knob handle.

[0071] In some other embodiments, in order to further avoid the influence caused by the virtual position, the size of the first connecting portion 412 of the inner handle 41 is equal to the size of the adjustment hole, so that when the inner handle 41 is rotated, there will be no virtual position between it and the adjustment hole. In order to facilitate the insertion of the inner handle into the adjustment hole, the free end of the first connecting portion is tapered. Since the rotation adjustment member is not very firmly connected to the circuit board, the rotation adjustment member is easily deformed during the process of the inner handle being inserted into the adjustment hole. Therefore, in this embodiment, there is an assembly gap between the through hole and the inner handle, so that when executing step S2, the inner handle can be rotated to drive the rotation adjustment member to move to the initial position, thereby reducing damage to the rotation adjustment member.

[0072] In this embodiment, the handle 422 is shaped like an arrow. During the assembly of the outer handle 42, the arrow is used to align with the mark 4131 of the inner handle 41 so that the outer handle 42 can be aligned with the inner handle 41, ultimately ensuring the accuracy of the position between the knob handle 4 and the adjustment hole 31.

[0073] In this embodiment, a limiting portion 414 is provided on the outer wall of the inner handle 41, and the limiting portion 414 cooperates with the inner wall of the mounting shell 11 to limit the inner handle 41. In this way, when the inner handle 41 is installed, the limiting portion 414 is limited by the inner wall of the mounting shell 11, which can prevent the inner handle 41 from falling off the mounting shell 11.

[0074] In this embodiment, the through hole 113 includes a accommodating groove 1131 and an accommodating hole 1132 arranged from the inside to the outside. The bottom of the accommodating groove 1131 is penetrated, and a sealing member is provided in the accommodating groove 1131, which can improve the waterproof performance. The first connecting portion 412 is located in the accommodating hole 1132, which avoids the first connecting portion 412 being exposed from the mounting shell 11, causing interference when the shell 1 is installed into the protective shell 5.

[0075] The size of the through hole at the bottom of the accommodating groove 1131 is smaller than the cross-sectional size of the limiting portion 414, and it is difficult for the limiting portion 414 to pass through this position. Therefore, in this embodiment, a guide slope 415 is provided between the limiting portion 414 and the outer wall of the inner handle 41. By providing the guide slope 415, during assembly, the inner handle 41 can easily pass through the through hole at the bottom of the accommodating groove 1131 through the guide slope 415, which is convenient for assembly.

[0076] Example 2

[0077] A knob-type sensor, the structure of the knob handle of this embodiment is basically the same as that of embodiment 1, except that Fig.10 The number of the knob handle 4 is 1. Of course, the number of the knob handle 4 can also be multiple, which can be set as needed.

[0078] When there are multiple knob handles 4, the positions of the multiple knob handles can be distributed as needed, for example Figure 3 The two knob handles are arranged along the vertical direction, or the two knob handles are distributed along the circumference of the protective shell 5.

[0079] Example 3

[0080] A knob-type sensor, the structure of the knob handle of this embodiment is basically the same as that of embodiment 1, except that in embodiment 1, two knob handles 4 pass through the protective shell through two avoidance holes 51. For this sensor, the printed pattern is printed on the protective shell by the lamp manufacturer. Since the knob handle and the printed pattern are manufactured and assembled by the sensor manufacturer and the lamp manufacturer respectively, the positions indicated by the knob handle and the pattern are inaccurate.

[0081] See also Figure 11-13 The position on the protective shell opposite to the sensor lens 61 is a groove. In this solution, the printed pattern 114 is printed on the sensor housing and exposed through the above groove. Since the knob handle and the pattern are processed by the sensor manufacturer, the position accuracy between the knob handle and the pattern indication position can be improved, thereby improving the user experience.

[0082] Example 4

[0083] A knob-type sensor. The structure of the knob handle of this embodiment is basically the same as that of embodiment 1. The difference is that in embodiment 1, the sensor is cylindrical. In this embodiment, Figure 14-15 , the sensor is in the shape of a square box.

[0084] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A knob-type sensor, characterized in that: It includes a housing, a circuit board, a rotary adjustment member and a knob handle; The housing comprises a mounting shell with an opening and an end cover, the mounting shell is provided with a mounting cavity, the circuit board is arranged in the mounting cavity, the rotary adjustment member is connected to the circuit board, and the end cover covers the opening; The mounting shell is provided with a through hole, the rotary adjusting member is provided with an adjusting hole, and the through hole and the adjusting hole are arranged opposite to each other; The knob handle includes an inner handle and an outer handle, the two ends of the inner handle are respectively an inserting part and a first connecting part, the inserting part passes through the through hole and is inserted into the adjustment hole, the first connecting part is located in the through hole, the two ends of the outer handle are respectively a second connecting part and a handle, the second connecting part is fixedly connected to the first connecting part, and the handle protrudes to the outside of the protective shell.

2. The knob-type sensor according to claim 1, characterized in that: The assembly steps of the knob sensor are as follows: Step S1, connecting the rotary adjustment member to the circuit board, and then installing the circuit board in the installation cavity of the installation shell; Step S2, passing the plug-in portion of the inner handle through the through hole until the plug-in portion is plugged into the adjustment hole; Step S3, connecting the end cover to the mounting shell so that the end cover covers the opening of the mounting cavity; Step S4, installing the housing assembled in step S3 into the protective housing; Step S5: When installing the knob-type sensor, the lamp assembler connects the second connection part to the first connection part to fix the outer handle to the inner handle, thereby completing the assembly of the knob-type sensor.

3. The knob-type sensor according to claim 1, characterized in that: One of the inner handle and the outer handle is provided with a connecting hole, and the other is provided with a connecting rod, and the connecting hole and the connecting rod are interference-connected; The first connection portion is the connection hole or the connection rod, and the second connection portion is the connection rod or the connection hole.

4. The knob-type sensor according to claim 3, characterized in that: The mouth of the connecting hole expands outward to form a flared portion.

5. The knob-type sensor according to claim 3, characterized in that: A boss is provided on the outer side wall of the end of the inner handle away from the rotary adjusting member, and a mark is provided on the boss.

6. The knob-type sensor according to claim 5, characterized in that: The outer side wall of the outer handle is provided with a sleeve portion, and the sleeve portion is sleeved on the boss.

7. The knob-type sensor according to claim 3, characterized in that: The handle is in the shape of an arrow.

8. The knob-type sensor according to claim 1, characterized in that: The outer side wall of the inner handle is provided with a limiting portion, and the limiting portion is limitedly matched with the inner side wall of the mounting shell.

9. The knob-type sensor according to claim 8, characterized in that: A guiding inclined surface is provided between the limiting portion and the outer side wall of the inner handle.

10. The knob-type sensor according to claim 1, characterized in that: The through hole includes a containing groove and a containing hole arranged from the inside to the outside, the bottom of the containing groove is penetrated, a sealing member is arranged in the containing groove, and the first connecting part is located in the containing hole.

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