CN218497170U

CN218497170U - Fixing device for groove-shaped photoelectric sensor and sensor assembly

Info

Publication number: CN218497170U
Application number: CN202222385306.6U
Authority: CN
Inventors: 唐可信; 叶立平
Original assignee: Shenzhen Akusense Technology Co Ltd
Current assignee: Shenzhen Akusense Technology Co Ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2023-02-17
Anticipated expiration: 2032-09-07

Abstract

The utility model relates to a technical field of sensor, concretely relates to a fixing device and sensor module for cell type photoelectric sensor, fixing device includes the set casing, first fixed block and second fixed block are located the both sides and the symmetry setting of set casing respectively, first logical groove of connecting has been seted up on the first fixed block, the second logical groove of connecting has been seted up on the second fixed block, the plane that first logical groove both ends were located respectively is levelled mutually with the plane that the second logical groove both ends were located respectively, the length direction who leads to the groove is connected to the length direction perpendicular to second of first logical groove of connecting. The screw is confined within the first connecting channel and is slidable only in a first direction, and the screw is confined within the second connecting channel and is slidable only in a second direction, the first direction being perpendicular to the second direction. Fixing device fastens the sensor, even if the screw takes place to become flexible, the sensor position on the horizontal plane also is injectd, is difficult for taking place the micro displacement, and detection stability is better.

Description

Fixing device for groove-shaped photoelectric sensor and sensor assembly

Technical Field

The utility model relates to a technical field of sensor, concretely relates to a fixing device and sensor module for cell type photoelectric sensor.

Background

The groove type photoelectric sensor is one of correlation type sensors, and is widely used in the field of automatic positioning detection due to high detection precision. The groove-type photoelectric sensor is formed by installing a light emitter and a receiver on two sides of a groove face to face. The light emitter can emit infrared light or visible light, and the light receiver can receive light under the unobstructed condition. However, when the object to be detected passes through the groove, the light is blocked, the photoelectric switch acts, a switch control signal is output, and the load current is cut off or switched on, so that one control action is completed.

The existing groove-type photoelectric sensor shell is generally provided with two mounting blocks, mounting holes are reserved in the mounting blocks, the mounting holes are penetrated through by screws or bolts, the positioning blocks are fixed at corresponding positions, and the sensor can be stably mounted at the moment.

The common knowledge shows that certain size errors exist when mechanical parts are machined, so that a large installation allowance needs to be reserved on an installation hole, and the installation of a screw is convenient. And the sensor is finally fixedly installed through the extrusion fastening of the screw. When the sensor is used on a device which is frequently operated, the screw is easily loosened due to interference of long-term vibration caused by movement of the device. If the screw is loosened, the sensor is easy to move slightly due to the installation allowance on the installation hole. The groove type photoelectric sensor is a precise instrument, and once the position is changed, the detection precision of the groove type photoelectric sensor is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixing device and sensor group price for cell type photoelectric sensor solves the problem among the above-mentioned background art.

In order to realize the above object, the utility model provides a fixing device for cell type photoelectric sensor, including set casing, first fixed block and second fixed block, first fixed block with the second fixed block is located respectively the both sides and the symmetry setting of set casing, first connection logical groove has been seted up on the first fixed block, the second connection logical groove has been seted up on the second fixed block, the plane at first connection logical groove both ends difference place with the plane that the second connection logical groove both ends place respectively is flat mutually, the length direction perpendicular to that the groove was led to in first connection the length direction that the groove was led to in the second connection.

Further, the first connecting through groove and the second connecting through groove are both waist-shaped grooves.

Furthermore, the first connecting through groove comprises an inserting end and a penetrating end, the inserting end is provided with a stepped notch, the penetrating end is a straight notch, and the second connecting through groove has the same structure as the first connecting through groove.

Furthermore, a first connecting standby through groove is formed in the first fixing block, the penetrating direction of the first connecting standby through groove is perpendicular to the penetrating direction of the first connecting through groove, a second connecting standby through groove is formed in the second fixing block, the penetrating direction of the second connecting standby through groove is perpendicular to the penetrating direction of the second connecting through groove, the planes where the two ends of the first connecting standby through groove are located are respectively level with the planes where the two ends of the second connecting standby through groove are located, and the length direction of the first connecting standby through groove is perpendicular to the length direction of the second connecting standby through groove.

Furthermore, the first connecting standby through groove and the second connecting standby through groove are both waist-shaped grooves, and the structures of the first connecting standby through groove and the second connecting standby through groove are the same as the structure of the first connecting through groove.

Furthermore, the first connecting through groove, the second connecting through groove, the first connecting standby through groove and the second connecting standby through groove are provided with central indicating lines on side walls of the end portions of the first connecting through groove and the second connecting standby through groove.

Furthermore, the length direction of the first connecting through groove is a first direction, the length direction of the second connecting through groove is a second direction, and a straight line passing through the center of the first connecting through groove and the center of the second connecting through groove is parallel to the second direction.

Further, the utility model also provides a sensor module, including the body and the aforesaid fixing device, the body is including the installation shell, fixing device with installation shell integrated into one piece sets up.

Further, the body is still including locating the circuit board in the installation shell, the installation shell has outside extension's transmitting terminal and receiving terminal, transmitting terminal and receiving terminal set up side by side along the horizontal direction and leave the detection clearance between the two, electric connection has transmitting tube and receiver tube on the circuit board, the transmitting terminal is located to the transmitting tube, the receiver tube is located the receiving terminal correspondingly.

Furthermore, the transmitting end and the receiving end are both provided with indicating arrows for identifying the transmitting direction of the detection signal.

The beneficial effects of the utility model reside in that:

1. the first fixing block is provided with a first connecting through groove, the second fixing block is provided with a second connecting through groove, the screw is limited in the first connecting through groove and can only slide along a first direction, the screw is limited in the second connecting through groove and can only slide along a second direction, and the first direction is perpendicular to the second direction. When the sensor is installed, the screw passes first and connects logical groove and carry out preliminary location to first fixed block earlier, and the screw tentatively carry out at this moment the initial connection can, need not the lock and die. Then the sensor is moved in the first direction, until the second connecting through groove is aligned with the corresponding connecting hole, the screw passes through the second connecting through groove to position the second fixed block, at the moment, the sensor is limited in the first direction and the second direction, the screw cannot move on the horizontal plane, and then the screw is screwed to fasten the sensor. Adopt foretell fixing device to fasten the sensor, even if the screw takes place to become flexible, the sensor position on the horizontal plane is also injectd, is difficult for taking place micro displacement, and detection stability is better.

2. The first connecting through groove comprises an inserting end and a penetrating end, and the inserting end is provided with a step notch. Adopt the structure of ladder notch, can accomodate the screw after the installation, avoid the screw to interfere the removal to other spare parts.

3. The first fixing block is provided with a first connecting standby through groove, and the second fixing block is provided with a second connecting standby through groove. When first connection leads to groove and second and is connected logical groove and receive the influence of mounted position and can't effectively connect the installation, can connect the installation through the reserve logical groove of first connection and second for the installation suitability of sensor is better.

4. The first tip lateral wall that leads to groove, the second is connected to first connection and is led to groove, the reserve logical groove of first connection, second connection all is equipped with central indicator line, sets for the reference standard through setting up central indicator line, makes things convenient for the quick installation of sensor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic position diagram of a fixing device provided in embodiment 1 of the present invention;

fig. 2 is a schematic view of another position of the fixing device provided in embodiment 1 of the present invention;

fig. 3 is a schematic view of an overall structure of a fixing device provided in embodiment 1 of the present invention;

fig. 4 is a schematic circuit diagram of a sensor assembly of a fixing device according to embodiment 2 of the present invention.

Description of reference numerals:

10. a fixing device; 11. a stationary case; 12. a first fixed block; 121. a first connecting through groove; 122. the first connecting standby through groove; 13. a second fixed block; 131. a second connecting through groove; 132. a second connecting standby through groove; 14. an insertion end; 15. a piercing-out end; 16. a central indicator line; 20. a body; 21. mounting a shell; 211. a transmitting end; 212. a receiving end; 213. detecting a gap; 214. an arrow is indicated; 22. a power line.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

Referring to fig. 1 and 2, as the embodiment of the utility model provides a fixing device 10 for cell type photoelectric sensor, its characterized in that is including set casing 11, first fixed block 12 and second fixed block 13 are located the both sides and the symmetry setting of set casing 11 respectively, first logical groove 121 of connecting has been seted up on first fixed block 12, the second logical groove 131 of connecting has been seted up on the second fixed block 13, the plane that the logical groove 131 both ends were connected respectively to the plane that first logical groove 121 both ends were located and second is flat mutually, the length direction who leads to groove 131 is connected to the length direction perpendicular to second of first logical groove 121.

The first fixing block 12 is provided with a first connecting through groove 121, the second fixing block 13 is provided with a second connecting through groove 131, the screw is limited in the first connecting through groove 121 and can only slide along a first direction, the screw is limited in the second connecting through groove 131 and can only slide along a second direction, and the first direction is perpendicular to the second direction. When the sensor is installed, the screw passes first and connects through groove 121 and carry out preliminary location to first fixed block 12 earlier, this moment the screw tentatively carry out the initial joint can, need not the lock and dies. Then, the sensor is moved in the first direction until the second connecting through groove 131 is aligned with the corresponding connecting hole, and then the screw passes through the second connecting through groove 131 to position the second fixing block 13, at the moment, the sensor is limited in the first direction and the second direction, and cannot move on the horizontal plane, and then the screw is screwed tightly to fasten the sensor. By adopting the fixing device 10 to fasten the sensor, even if the screw is loosened, the position of the sensor on the horizontal plane is limited, micro displacement is not easy to occur, and the detection stability is better.

Specifically, in this embodiment, the first connecting groove 121 and the second connecting groove 131 are both waist-shaped grooves, the first connecting groove 121 includes the inserting end 14 and the penetrating end 15, the inserting end 14 is provided with a stepped notch, the penetrating end 15 is a straight notch, and the structure of the stepped notch is adopted, so that the screw after installation can be accommodated, and the screw is prevented from interfering with the movement of other parts. The second connecting through groove 131 has the same structure as the first connecting through groove 121. The length direction of the first connecting through groove 121 is a first direction, the length direction of the second connecting through groove 131 is a second direction, and a straight line passing through the center of the first connecting through groove 121 and the center of the second connecting through groove 131 is parallel to the second direction. By adopting the structure, the stress is more balanced after the sensor is integrally installed, so that the locking and installation of the screw are not easy to loosen.

Further, referring to fig. 3, the first fixing block 12 is provided with a first connecting standby through groove 122, a penetrating direction of the first connecting standby through groove 122 is perpendicular to a penetrating direction of the first connecting through groove 121, the second fixing block 13 is provided with a second connecting standby through groove 132, and a penetrating direction of the second connecting standby through groove 132 is perpendicular to a penetrating direction of the second connecting through groove 131. The plane of the two ends of the first connecting through slot 122 is parallel to the plane of the two ends of the second connecting through slot 132, and the length direction of the first connecting through slot 122 is perpendicular to the length direction of the second connecting through slot 132.

Specifically, referring to fig. 3, the first connection standby through groove 122 and the second connection standby through groove 132 are both waist-shaped grooves, and the first connection standby through groove 122 and the second connection standby through groove 132 are both structurally identical to the first connection through groove 121. When the first connecting through groove 121 and the second connecting through groove 131 are affected by the installation position and cannot be effectively connected and installed, the first connecting through groove 122 and the second connecting through groove 132 can be used for connection and installation, so that the installation adaptability of the sensor is better.

Further, the end side walls of the first connecting through groove 121, the second connecting through groove 131, the first connecting standby through groove 122 and the second connecting standby through groove 132 are all provided with a center indicating line 16, and a reference standard is set by setting the center indicating line 16, so that the sensor can be conveniently and quickly mounted.

Example 2

As the embodiment of the utility model provides a sensor assembly, including body 20 and embodiment 1 fixing device 10, body 20 is including installation shell 21, fixing device 10 and installation shell 21 integrated into one piece setting. The specific structure of the fixing device 10 is described in detail in embodiment 1, and thus is not described in detail.

Specifically, the body 20 further includes a circuit board disposed in the mounting case 21, the mounting case 21 has an emitting end 211 and a receiving end 212 extending outward, the emitting end 211 and the receiving end 212 are disposed in parallel in a horizontal direction, and a detection gap 213 is left between the emitting end 211 and the receiving end 212, the circuit board is electrically connected to an emitting tube and a receiving tube, the emitting tube is disposed at the emitting end 211, and the receiving tube is correspondingly disposed at the receiving end 212. The transmitting tube is an infrared transmitting tube, and the receiving tube is an infrared receiving tube. The transmitting end 211 and the receiving end 212 are each provided with an indication arrow 214 for identifying the transmission direction of the detection signal.

Specifically, one end of the circuit board is connected with a power line 22, the circuit board is provided with a circuit framework, and the circuit framework comprises a transmitting unit, a receiving unit, a power supply unit, a control unit and a judging unit; the power supply unit is used for supplying power to the receiving unit and the transmitting unit, and the output end of the transmitting unit is connected with the input end of the receiving unit. The transmitting unit transmits pulse signals with corresponding frequencies to the receiving unit, and the receiving unit receives the corresponding pulse signals; because the external strong light is direct current, no pulse frequency exists, the receiving unit cannot be subjected to false sensing due to the external strong light, the influence of the external strong light on the sensor is reduced, and the effect of improving the light resistance of the product is achieved. The output end of the control unit is connected with the input end of the transmitting unit, and the control unit is used for controlling the frequency of the signal sent by the transmitting unit. The frequency of the pulse signal transmitted to the receiving unit by the transmitting unit is controlled by the control unit, and the control unit can change the frequency transmitted by the transmitting unit according to actual needs, so that the effect of adapting to different scenes is achieved, and the effect of improving the adaptability of the sensor is achieved. The output end of the receiving unit is connected with the input end of the judging unit; the judging unit is used for judging whether the receiving unit receives the signal transmitted by the transmitting unit.

The receiving unit outputs the received signal to the judging unit, and the judging unit judges whether the frequency of the signal output by the receiving unit is equal to that of the pulse signal transmitted by the transmitting unit; if the frequencies are equal, the receiving unit receives the pulse signal transmitted by the transmitting unit, and if the frequencies are not equal, the receiving unit does not receive the pulse signal transmitted by the transmitting unit. Wherein, the judging unit, the control unit and the power supply unit are matched to form the photoelectric IC. The control unit controls the frequency of the signal sent by the transmitting unit by changing the duty ratio of the PWM and the transmitting period of the pulse signal. The receiving unit transmits the signals to the photoelectric IC for processing after receiving the signals sent by the transmitting unit, and the judging unit of the photoelectric IC judges whether the receiving unit receives the signals sent by the transmitting unit or not through signal processing. The circuit board is a PCB board, and the photoelectric IC is welded on the circuit board.

The transmitting unit transmits pulse signals with corresponding frequencies to the receiving unit, and the receiving unit receives the corresponding pulse signals; because the external strong light is direct current, no pulse frequency exists, the receiving unit cannot be subjected to false sensing due to the external strong light, the influence of the external strong light on the sensor is reduced, and the effect of improving the light resistance of the product is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fixing device for cell type photoelectric sensor, its characterized in that, includes set casing (11), first fixed block (12) and second fixed block (13), first fixed block (12) with second fixed block (13) are located respectively the both sides and the symmetry setting of set casing (11), first connection logical groove (121) have been seted up on first fixed block (12), the second connection logical groove (131) have been seted up on second fixed block (13), the first plane that leads to groove (121) both ends difference place with the second is connected the plane that leads to groove (131) both ends difference place and is leveled mutually, the length direction perpendicular to that the logical groove (121) was led to in first connection the length direction of second connection logical groove (131).

2. The fixture for a slot-type photosensor according to claim 1, wherein the first connecting through slot (121) and the second connecting through slot (131) are each a waist-shaped slot.

3. The fixing device for a slot-type photosensor according to claim 2, wherein the first connecting through slot (121) comprises an insertion end (14) and a through end (15), the insertion end (14) is provided with a stepped notch, the through end (15) is a straight notch, and the second connecting through slot (131) has the same structure as the first connecting through slot (121).

4. The fixing device for the slot type photoelectric sensor according to claim 1, wherein the first fixing block (12) is provided with a first connecting spare through slot (122), a penetrating direction of the first connecting spare through slot (122) is perpendicular to a penetrating direction of the first connecting through slot (121), the second fixing block (13) is provided with a second connecting spare through slot (132), a penetrating direction of the second connecting spare through slot (132) is perpendicular to a penetrating direction of the second connecting through slot (131), a plane where two ends of the first connecting spare through slot (122) are respectively located is parallel to a plane where two ends of the second connecting spare through slot (132) are respectively located, and a length direction of the first connecting spare through slot (122) is perpendicular to a length direction of the second connecting spare through slot (132).

5. The fixture for a groove-type photosensor according to claim 4, wherein the first connection spare through groove (122) and the second connection spare through groove (132) are both a waist-shaped groove, and the first connection spare through groove (122) and the second connection spare through groove (132) are both identical in structure to the first connection through groove (121).

6. The fixture for a slot-type photosensor according to claim 4, wherein end side walls of said first connecting through slot (121), said second connecting through slot (131), said first connecting spare through slot (122), said second connecting spare through slot (132) are each provided with a center indicating line (16).

7. The fixture for a slot-type photosensor according to claim 1, wherein the length direction of the first connecting through slot (121) is a first direction, the length direction of the second connecting through slot (131) is a second direction, and a straight line passing through the centers of the first connecting through slot (121) and the second connecting through slot (131) is parallel to the second direction.

8. A sensor assembly, comprising a body (20) and a fixture (10) according to any one of claims 1-6, the body (20) comprising a mounting housing (21), the fixture (10) being provided integrally with the mounting housing (21).

9. The sensor assembly of claim 8, wherein the body (20) further comprises a circuit board disposed inside the mounting housing (21), the mounting housing (21) has an emitting end (211) and a receiving end (212) extending outward, the emitting end (211) and the receiving end (212) are juxtaposed in a horizontal direction with a detection gap (213) therebetween, the circuit board is electrically connected with a transmitting tube and a receiving tube, the transmitting tube is disposed at the emitting end (211), and the receiving tube is correspondingly disposed at the receiving end (212).

10. A sensor assembly according to claim 9, characterized in that the transmitting end (211) and the receiving end (212) are each provided with an indication arrow (214) for identifying the direction in which the detection signal is transmitted.