Photoelectric sensor fixing and protecting device
By designing a photoelectric sensor fixing and protection device including a mounting plate, a mounting box and a fixing component, the problem of uneven fixing force of the photoelectric sensor in the prior art is solved, and uniform fixing and efficient heat dissipation of the photoelectric sensor are achieved.
Patent Information
- Application Number
- CN202421147083.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-21
AI Technical Summary
When the protective device of existing photoelectric sensors is fixed, the force is applied unevenly, which can easily lead to local deformation and damage to the photoelectric sensor.
A photoelectric sensor fixing and protection device including a mounting plate, a mounting box and a fixing assembly is designed. The fixing assembly consists of a first drive member, a second drive member, a left fixing member and a right fixing member. Through the meshing gear and sliding connection, uniform clamping and fixing of the photoelectric sensor is achieved.
The device can apply force uniformly to the photoelectric sensor to prevent deformation and damage caused by uneven force. At the same time, by positioning the components and the heat dissipation structure, the fixing effect and heat dissipation performance of the photoelectric sensor are further improved.
Smart Images

Figure CN222438858U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of photoelectric sensors, in particular to a photoelectric sensor fixing and protection device. Background Art
[0002] A photoelectric sensor is a device that converts light signals into electrical signals. Its working principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon that when light shines on certain substances, the electrons of the substance absorb the energy of photons and produce corresponding electrical effects.
[0003] After searching, the application with patent application number CN201922325097.4 discloses a photoelectric sensor protection device including: a vertical connecting plate; a protection box, the protection box is fixedly mounted on one side of the vertical connecting plate, and an opening is provided on the side of the protection box away from the vertical connecting plate; a first horizontal plate, the first horizontal plate is fixedly mounted on the bottom inner wall of the protection box; a placement groove, the placement groove is opened on the top of the first horizontal plate; a photoelectric sensor body, the photoelectric sensor body is placed in the placement groove; a cabinet door, the cabinet door is arranged on one side of the protection box, and the cabinet door is fixedly connected to the protection box by two hinges; a breathable storage box, the breathable storage box is fixedly mounted on the cabinet door.
[0004] Although the protective device of the photoelectric sensor includes a protective box, a breathable storage box, activated carbon, a cabinet door, a square pressure plate, a first round rod, a trapezoidal rainproof handle and a telescopic spring, which can simply and effectively protect and fix the photoelectric sensor body, the square pressure plate and the first baffle of the photoelectric sensor are respectively arranged on the top and side surfaces of the photoelectric sensor, which can easily cause uneven force on the photoelectric sensor and produce local deformation, eventually leading to damage.
[0005] Therefore, there is an urgent need for a device that can fix and protect the photoelectric sensor, and the force generated by the device on the photoelectric sensor is uniform, so as to prevent the photoelectric sensor from undergoing local deformation due to uneven force. Utility Model Content
[0006] The utility model discloses a photoelectric sensor fixing and protection device, which is used for fixing and protecting the photoelectric sensor. A photoelectric sensor fixing and protection device comprises a mounting plate, a mounting box and a fixing assembly; the mounting box is arranged on the mounting plate, and a through hole is arranged on the top of the mounting box. The fixing member comprises a first driving member, a second driving member, a left fixing member and a right fixing member; the first driving member is passed through the through hole, and the bottom end of the first driving member is rotatably connected to the second driving member. The left fixing member and the right fixing member are respectively passed through the two ends of the second driving member, and are both slidably connected to the second driving member.
[0007] In a specific embodiment, the first driving member includes a first rod body and a first gear, the first rod body is inserted into the through hole, and the first gear is arranged at the bottom of the first rod body. The second driving member includes a second rod body and a second gear, and the second gear is arranged in the middle of the second rod body; the first gear is meshed with the second gear.
[0008] In a specific embodiment, the left fixing member includes a left movable plate, a left fixed plate and a left extension plate; the right fixing member includes a right movable plate, a right fixed plate and a right extension plate; the left movable plate is inserted through the left end of the second driving member and is slidably connected to the second driving member; the bottom of the left movable plate is connected to the top of the left fixed plate, and the left extension plate is provided on both sides of the left fixed plate. The right movable plate is inserted through the right end of the second driving member and is slidably connected to the second driving member; the bottom of the right movable plate is connected to the top of the right fixed plate, and the right extension plate is provided on both sides of the right fixed plate.
[0009] In a specific embodiment, the shapes of the left extension plate and the right extension plate are independently selected from any one of circular, square or triangular; and / or, a handle is also provided on the top of the first driving member, and the shape of the handle is any one of cross, circular or conical.
[0010] In a specific embodiment, a positioning assembly is further provided in the installation box; the positioning assembly includes a shock absorbing plate and a guide plate, the shock absorbing plate is provided at the bottom of the inner cavity of the installation box, and the guide plates are provided on both sides of the shock absorbing plate and extend upward.
[0011] In a specific embodiment, the materials of the shock absorbing plate and the guide plate are both rubber.
[0012] In a specific embodiment, the installation box is also provided with a plurality of heat dissipation holes, a heat dissipation pipe and a dustproof net are also included, the air inlet end of the heat dissipation pipe is connected with the heat dissipation holes, and the air outlet end of the heat dissipation pipe is provided with a dustproof net.
[0013] In a specific embodiment, the heat dissipation holes are arranged on the side wall of the installation box, and the heat dissipation holes are symmetrically arranged.
[0014] In a specific implementation, the heat dissipation pipe is an L-shaped heat dissipation pipe, and the air outlet end of the heat dissipation pipe is arranged downward.
[0015] In a specific embodiment, the installation box is further provided with a box door, and the box door is detachably connected to the installation box.
[0016] As described above, the photoelectric sensor fixing and protection device provided by the utility model has the following beneficial effects:
[0017] 1. The photoelectric sensor can be clamped in the installation box. At the same time, the force applied to the photoelectric sensor is very uniform, which can effectively prevent the photoelectric sensor from being deformed due to uneven force.
[0018] 2. The left / right fixed plate and left / right extension plate designed in the present application can increase the contact area with the photoelectric sensor, thereby increasing the force-bearing area of the photoelectric sensor and reducing the local pressure of the photoelectric sensor to prevent the photoelectric sensor from being deformed due to excessive local force.
[0019] 3. The positioning member designed in the present application can limit the position of the photoelectric sensor and can also clamp the bottom of the photoelectric sensor to further improve the fixing effect of the photoelectric sensor.
[0020] 4. The heat dissipation structure designed in this application includes heat dissipation holes, heat dissipation pipes and dustproof nets. The heat dissipation holes and heat dissipation pipes can increase the air circulation in the inner cavity of the installation box. The dustproof net can prevent external dust from entering the inner cavity of the installation box and prevent dust from adhering to the surface of the photoelectric sensor, which is beneficial to improving the heat dissipation effect of the photoelectric sensor. Furthermore, the heat dissipation pipe is L-shaped, and the air outlet end of the heat dissipation pipe is set downward, which can prevent external water from entering the inner cavity of the installation box through the heat dissipation pipe to ensure that the water will not damage the photoelectric sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0022] Figure 2 It is a partial exploded view of the positioning component, the installation box and related components on the installation box of the utility model.
[0023] Figure 3 It is a structural schematic diagram of the fixing component of the utility model.
[0024] Reference numerals
[0025] Mounting plate 1
[0026] Installation box 2
[0027] Through hole 21
[0028] Cooling holes 22
[0029] Heat pipe 23
[0030] Dust screen 24
[0031] Door 25
[0032] Fixing component 3
[0033] The first driving member 31
[0034] First rod body 31.1
[0035] First gear 31.2
[0036] Handlebars31.3
[0037] The second driving member 32
[0038] Second rod body 32.1
[0039] Second gear 32.2
[0040] Left fixing member 33
[0041] Left moving plate 33.1
[0042] Left fixing plate 33.2
[0043] Left extension plate 33.3
[0044] Right fixing part 34
[0045] Right moving plate 34.1
[0046] Right fixing plate 34.2
[0047] Right extension plate 34.3
[0048] Positioning component 4
[0049] Shock absorber plate 41
[0050] Guide plate 42
[0051] Bump 5
[0052] Photoelectric sensor 9 DETAILED DESCRIPTION
[0053] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "left side", "right side", "upper side", "lower side", "above", "below", "both sides", "top", "bottom", "inner cavity", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0055] In addition, in the description of the present invention, unless otherwise specified, “plurality” means two or more.
[0056] The present application provides a photoelectric sensor protection device for fixing and protecting a photoelectric sensor 9. Figure 1 The photoelectric sensor protection device includes a mounting plate 1, a mounting box 2 and a fixing assembly 3. The mounting plate 1 is generally mounted on a wall, the mounting box 2 is mounted on the mounting plate 1, and the photoelectric sensor 9 is mounted in the inner cavity of the mounting box 2. Preferably, a box door 27 is also mounted on the mounting box 2, and the box door 27 is detachably connected to the mounting box 2. In a preferred embodiment, Figure 1 As shown, the box door 27 is hinged to the installation box 2 through a hinge. Figure 2 The top of the installation box 2 is provided with a through hole 21. Figure 3 The fixing member 3 includes a first driving member 31, a second driving member 32, a left fixing member 33 and a right fixing member 34. The first driving member 31 is inserted into the through hole 21, and the bottom end of the first driving member 31 is rotatably connected to the second driving member 32. The left fixing member 33 and the right fixing member 34 are respectively inserted into the two ends of the second driving member 32, and are both slidably connected to the second driving member 32. When the fixing member 3 is in use, the first driving member 31 drives the second driving member 32 to rotate, and the rotation of the second driving member 32 drives the left fixing member 33 and the right fixing member 34 to slide inward or outward on the second driving member 32, thereby driving the left fixing member 33 and the right fixing member 34 to move to a suitable position, clamping the photoelectric sensor 9 and fixing it. At the same time, the left fixing member 33 and the right fixing member 34 have the same structure and the same movement direction (the same movement direction here means: moving in the direction close to the installation box 2 or moving in the direction away from the installation box 2 at the same time), and the force applied to the photoelectric sensor 9 is very uniform, which can effectively prevent the photoelectric sensor 9 from deforming due to uneven force. In addition, since the left fixing member 33 and the right fixing member 34 can move synchronously in the direction close to the installation box 2 or in the direction away from the installation box 2, the present application can be adapted to different models of photoelectric sensors 9, which improves the practicality of the present application.
[0057] Furthermore, the first driving member 31 and the second driving member 32 have various structures, and the connection relationship between the first driving member 31 and the second driving member 32 also has various embodiments. The following provides a specific embodiment of the first driving member 31 and the second driving member 32: Figure 3 The first driving member 31 includes a first rod 31.1 and a first gear 31.2. The first rod 31.1 is inserted into the through hole 21, and the first gear 31.2 is arranged at the bottom of the first rod 31.1. The second driving member 32 includes a second rod 32.1 and a second gear 32.2. The second gear 32.2 is arranged in the middle of the second rod 32.1. When the first driving member 31 is in use, the first rod 31.1 is screwed into the through hole 21, and the first rod 31.1 is raised and lowered by forward and reverse rotation. Figure 3 The first gear 31.2 is preferably a bevel gear, and the cone tip of the first gear 31.2 is set downward. The second gear 32.2 is preferably a bevel gear, and the cone tip of the second gear 32.2 is set to the left or right. At the same time, the first gear 31.2 is meshed with the second gear 32.2.
[0058] For further information, see Figure 3 The first rod 31.1 and the second rod 32.1 are vertically arranged, and the first gear 31.2 and the second gear 32.2 are also vertically arranged. When in use, the first rod 31.1 is rotated so that the first gear 31.2 and the first rod 31.1 rotate synchronously. Due to the meshing relationship between the first gear 31.2 and the second gear 32.2, the rotation of the first gear 31.2 drives the second gear 32.2 to rotate, and the rotation of the second gear 32.2 causes the second rod 32.1 to rotate synchronously. The rotation of the second rod 32.1 drives the left fixing member 33 and the right fixing member 34 to slide inward or outward.
[0059] In one specific embodiment, see Figure 3The left fixing member 33 includes a left movable plate 33.1, a left fixed plate 33.2 and a left extension plate 33.3. The left movable plate 33.1 is arranged at the left end of the second driving member 32 and is slidably connected to the second driving member 32. The bottom of the left movable plate 33.1 is connected to the top of the left fixed plate 33.2, and left extension plates 33.3 are arranged on both sides of the left fixed plate 33.2, and the left extension plates 33.3 and the left fixed plate 33.2 are vertically arranged. When the left fixing member 33 fixes the photoelectric sensor 9, the left movable plate 33.1 and the left fixed plate 33.2 hold the left side of the photoelectric sensor 9, and the left extension plate 33.3 holds the front and rear sides of the photoelectric sensor 9, thereby clamping the left half of the photoelectric sensor 9. Since the sizes of different photoelectric sensors 9 are different, the appropriate left movable plate 33.1, the left fixed plate 33.2 and the left extension plate 33.3 should be selected according to the actual size of the photoelectric sensor 9. In a preferred embodiment, the left movable plate 33.1, the left fixed plate 33.2 and the left extension plate 33.3 are all integrally formed, the shapes of the left movable plate 33.1 and the left extension plate 33.3 are both circular, and the shape of the left fixed plate 33.2 is rectangular. At the same time, the left movable plate 33.1 and the left fixed plate 33.2 can support nearly 2 / 3 of the area on the left side of the photoelectric sensor 9, and the left extension plate 33.3 extends as far as possible toward the center line of the photoelectric sensor 9, but does not exceed the center line of the photoelectric sensor 9. The above arrangement can increase the contact area with the photoelectric sensor 9, increase the force-bearing area of the photoelectric sensor 9, and reduce the local pressure of the photoelectric sensor 9 to prevent the photoelectric sensor 9 from being deformed due to excessive local force. Continue reading Figure 3 , the right fixing member 34 includes a right movable plate 34.1, a right fixed plate 34.2 and a right extension plate 34.3. The right movable plate 34.1 is penetrated through the right end of the second driving member 32, and is slidably connected to the second driving member 32. The bottom of the right movable plate 34.1 is connected to the top of the right fixed plate 34.2, and right extension plates 34.3 are provided on both sides of the right fixed plate 34.2. The right fixing member 34 and the left fixing member 33 are symmetrical structures, so the structure and setting method are the same as the left fixing member 33, so they are not repeated here. In addition, it is worth explaining that the second rod body 32.1 is a threaded rod, and the way the second rod body 32.1 drives the left movable plate 33.1 and the right movable plate 34.1 is the same as the principle of a ball screw. In a preferred embodiment, refer to Figure 3 , a protrusion 5 is also installed on the left movable plate 33.1 and the right movable plate 34.1, and the protrusion 5 protrudes toward the inside of the fixing component 3. When fixing the photoelectric sensor 9, the edge of the protrusion 5 can be placed on the top of the photoelectric sensor 9 to provide a force point for the second driving member 32, and then the left movable plate 33.1 and the right movable plate 34.1 are driven to move.
[0060] In one specific embodiment, see Figure 2The installation box 2 is also provided with a positioning assembly 4, which includes a shock absorbing plate 41 and a guide plate 42. The shock absorbing plate 41 is installed at the bottom of the inner cavity of the installation box 2, and the guide plates 42 are installed on both sides of the shock absorbing plate 41 and extend upward. The length of the shock absorbing plate 41 matches the length of the photoelectric sensor 9, and the guide plate 42 serves to limit the photoelectric sensor 9. When the photoelectric sensor 9 is installed, the bottom of the photoelectric sensor 9 is placed on the shock absorbing plate 41, and the guide plate 42 can just support the two sides of the photoelectric sensor 9, so that the shock absorbing plate 41 and the guide plate 42 can clamp the photoelectric sensor 9. Preferably, the shock absorbing plate 41 and the guide plate 42 are integrally formed and are both made of rubber material. The rubber material has the characteristics of high elasticity, high temperature resistance and insulation, and can absorb the impact force on the installation box 2, which is conducive to protecting the photoelectric sensor 9. In addition, the shock absorbing plate 41 and the bottom of the inner cavity of the installation box 2 can be detachably connected by screws, buckles or magnetic suction. The above arrangement can clamp the bottom of the photoelectric sensor 9 while limiting the position of the photoelectric sensor 9, so that the fixing effect of the photoelectric sensor 9 is further improved.
[0061] In one specific embodiment, see Figure 2 The installation box 2 is also provided with a plurality of heat dissipation holes 22. It also includes a heat dissipation pipe 23 and a dustproof net 24. The air inlet end of the heat dissipation pipe 23 is connected to the heat dissipation hole 22, and the air outlet end of the heat dissipation pipe 23 is provided with a dustproof net 24. The heat dissipation holes 22 and the heat dissipation pipe 23 can increase the air circulation in the inner cavity of the installation box 2, and the dustproof net 24 can prevent external dust from entering the inner cavity of the installation box 2 and prevent dust from adhering to the surface of the photoelectric sensor 9, which is conducive to improving the heat dissipation effect of the photoelectric sensor 9. In a preferred embodiment, refer to Figure 2 The heat dissipation pipe 23 is L-shaped, and the air outlet end of the heat dissipation pipe 23 is arranged downward, so that external water can be prevented from entering the inner cavity of the installation box 2 through the heat dissipation pipe 23, so as to ensure that the water will not cause damage to the photoelectric sensor 9. In a preferred arrangement, symmetrical heat dissipation holes 22, heat dissipation pipes 23 and dustproof nets 24 are arranged on both sides of the installation box 2.
[0062] Here, a method for using the photoelectric sensor protection device described in this application is provided, and the specific method for using is as follows:
[0063] 1) Open the box door 27 and place the photoelectric sensor 9 on the damping plate 41. The damping plate 41 and the guide plate 42 clamp the bottom of the photoelectric sensor 9;
[0064] 2) The left movable plate 33.1 and the right movable plate 34.1 are respectively inserted into the left and right ends of the second rod 32.1, and the edges of the protrusions on the left movable plate 33.1 and the right movable plate 34.1 are placed on the photoelectric sensor 9; then, the handle 31.3 is turned to rotate the first rod 31.1 and the first gear 31.2, the first gear 31.2 drives the second gear 32.2 to rotate through the meshing relationship between the first gear 31.2 and the second gear 32.2, the second gear 32.2 drives the second rod 32.1 to rotate, and the second rod 32.1 drives the left movable plate 33.1 and the right movable plate 34.1 to move toward the direction of the photoelectric sensor 9. The handle 31.3 is continuously turned until the left movable plate 33.1, the left fixed plate 33.2 and the left extension plate 33.3 clamp the left half of the photoelectric sensor 9, and the right movable plate 34.1, the right fixed plate 34.2 and the right extension plate 34.3 clamp the upper right part of the photoelectric sensor 9.
[0065] 3) In the final state, the damping plate 41 and the guide plate 42 clamp the bottom of the photoelectric sensor 9, the left movable plate 33.1, the left fixed plate 33.2 and the left extension plate 33.3 clamp the left half of the photoelectric sensor 9, and the right movable plate 34.1, the right fixed plate 34.2 and the right extension plate 34.3 clamp the upper right part of the photoelectric sensor 9.
[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A photoelectric sensor fixing and protection device, characterized in that: It comprises a mounting plate (1), a mounting box (2) and a fixing assembly (3); the mounting box (2) is arranged on the mounting plate (1), and a through hole (21) is arranged on the top of the mounting box (2); The fixing assembly (3) comprises a first driving member (31), a second driving member (32), a left fixing member (33) and a right fixing member (34); the first driving member (31) is inserted into the through hole (21), and the bottom end of the first driving member (31) is rotatably connected to the second driving member (32); The left fixing member (33) and the right fixing member (34) are respectively passed through the two ends of the second driving member (32), and are both slidably connected to the second driving member (32), and are suitable for clamping the installation box (2).
2. The photoelectric sensor fixing and protection device according to claim 1, characterized in that: The first driving member (31) comprises a first rod body (31.1) and a first gear (31.2); the first rod body (31.1) is inserted into the through hole (21); the first gear (31.2) is arranged at the bottom of the first rod body (31.1); the second driving member (32) comprises a second rod body (32.1) and a second gear (32.2); the second gear (32.2) is arranged at the middle of the second rod body (32.1); the first gear (31.2) is meshed with the second gear (32.2).
3. The photoelectric sensor fixing and protection device according to claim 1 or 2, characterized in that: The left fixing member (33) comprises a left movable plate (33.1), a left fixing plate (33.2) and a left extension plate (33.3); the right fixing member (34) comprises a right movable plate (34.1), a right fixing plate (34.2) and a right extension plate (34.3); The left movable plate (33.1) is inserted through the left end of the second driving member (32) and is slidably connected to the second driving member (32); the bottom of the left movable plate (33.1) is connected to the top of the left fixed plate (33.2), and the left extension plates (33.3) are provided on both sides of the left fixed plate (33.2); The right movable plate (34.1) is inserted into the right end of the second driving member (32) and is slidably connected to the second driving member (32); the bottom of the right movable plate (34.1) is connected to the top of the right fixed plate (34.2), and the right extension plates (34.3) are provided on both sides of the right fixed plate (34.2).
4. The photoelectric sensor fixing and protection device according to claim 3 is characterized in that: The shapes of the left extension plate (33.3) and the right extension plate (34.3) are independently selected from any one of a circle, a square or a triangle; And / or, a handle (31.3) is further provided at the top of the first driving member (31), and the shape of the handle (31.3) is any one of a cross, a circle or a cone.
5. The photoelectric sensor fixing and protection device according to claim 1, characterized in that: The installation box (2) is also provided with a positioning assembly (4), and the installation box (2) and the positioning assembly (4) are detachably connected; the positioning assembly (4) comprises a shock absorbing plate (41) and a guide plate (42), the shock absorbing plate (41) being arranged at the bottom of the inner cavity of the installation box (2), and the guide plate (42) being arranged on both sides of the shock absorbing plate (41) and extending upward.
6. The photoelectric sensor fixing and protection device according to claim 5, characterized in that: The materials of the shock absorbing plate (41) and the guide plate (42) are both rubber.
7. The photoelectric sensor fixing and protection device according to claim 1, characterized in that: The installation box (2) is also provided with a plurality of heat dissipation holes (22); and also includes a heat dissipation pipe (23) and a dustproof net (24); the air inlet end of the heat dissipation pipe (23) is connected to the heat dissipation hole (22), and the dustproof net (24) is provided on the air outlet end of the heat dissipation pipe (23).
8. The photoelectric sensor fixing and protection device according to claim 7, characterized in that: The heat dissipation holes (22) are arranged on the side wall of the installation box (2), and the heat dissipation holes (22) are symmetrically arranged.
9. The photoelectric sensor fixing and protection device according to claim 7 or 8, characterized in that: The heat dissipation pipe (23) is an L-shaped heat dissipation pipe, and the air outlet end of the heat dissipation pipe (23) is arranged downward.
10. The photoelectric sensor fixing and protection device according to claim 1, characterized in that: The installation box (2) is also provided with a box door (27), and the box door (27) is detachably connected to the installation box (2).
Citation Information
Patent Citations
Protection device of photoelectric sensor
CN210862738U