Laser detection device

Abstract

The invention discloses a laser detection device, and belongs to the technical field of laser instruments. The laser detection device comprises at least two first adjusting pieces and at least two first elastic pieces, the first adjusting pieces are sequentially arranged in the circumferential direction of a first laser module, the first end of each first adjusting piece penetrates through the first laser module and is connected with a first connecting part of a shell, and the second end of each first adjusting piece is connected with a second connecting part of the shell. A first limiting part is arranged at the second end of each first adjusting part, each first adjusting part is sleeved with a corresponding first elastic part, the first elastic parts are located between the first connecting part and the first laser module and used for pressing the first laser module to the first limiting parts, and the positions, relative to the first connecting part, of the first limiting parts are adjustable; therefore, the optical axis direction of the indicating laser or the measuring laser is adjustable. Through the arrangement, the deviation between the optical axis direction of the indicating laser and the optical axis direction of the measuring laser is reduced, so that the detection accuracy of the laser detection device is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of laser instruments, and specifically relates to a laser detection device. Background Art

[0002] The laser detection device mainly uses laser spectroscopy technology for detection. Taking the detection of gas using a laser detection device as an example, different gas molecules have different absorption characteristics for lasers of specific wavelengths. When the laser beam passes through the space to be inspected, specific gas molecules will absorb the laser wavelength that matches their absorption spectrum. Therefore, by measuring the change in laser intensity after absorption, it can be determined whether there is a preset gas in the space to be inspected.

[0003] Existing laser detection devices usually include a first laser module and a second laser module. The first laser module is used to emit a measuring laser, and the second laser module is used to emit an indicating laser. The measuring laser is used for detection and is invisible light. The indicating laser is visible light, and its optical axis direction is the same as that of the measuring laser to indicate the optical path of the measuring laser.

[0004] However, due to installation errors and processing errors, there is often a deviation between the optical axis direction of the indicating laser and the optical axis direction of the measuring laser, resulting in low detection accuracy of the laser detection device. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a laser detection device that can solve the problem of low detection accuracy of the laser detection device in the related art.

[0006] The present application provides a laser detection device, comprising: A housing and a first laser module and a second laser module arranged side by side on the housing, wherein one of the first laser module and the second laser module is used to emit an indication laser, and the other is used to emit a measurement laser; At least two first adjustment members and at least two first elastic members, each of the first adjustment members is arranged in sequence along the circumference of the first laser module, the first end of each of the first adjustment members passes through the first laser module and is connected to the first connecting portion of the shell, the second end of each of the first adjustment members is provided with a first limiting portion, and each of the first adjustment members is sleeved with a corresponding first elastic member, the first elastic member is located between the first connecting portion and the first laser module, and is used to press the first laser module toward the first limiting portion, and the position of the first limiting portion relative to the first connecting portion is adjustable so that the optical axis direction of the indication laser or the measuring laser is adjustable.

[0007] In the embodiment of the present application, each first adjustment member is arranged in sequence along the circumference of the first laser module, the first end of each first adjustment member passes through the first laser module and is connected to the first connecting portion of the shell, the second end of each first adjustment member is provided with a first limiting portion, and each first adjustment member is sleeved with a corresponding first elastic member, the first elastic member is located between the first connecting portion and the first laser module, and is used to press the first laser module toward the first limiting portion. After such arrangement, the position of the first limiting portion relative to the first connecting portion is adjustable, so that the optical axis direction of the indicating laser or the measuring laser is adjustable. With such arrangement, in the case where there is a deviation between the optical axis direction of the indicating laser and the optical axis direction of the measuring laser, by adjusting the optical axis direction of the indicating laser or the optical axis direction of the measuring laser, the deviation between the optical axis direction of the indicating laser and the optical axis direction of the measuring laser can be reduced, thereby improving the detection accuracy of the laser detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A three-dimensional diagram of a laser detection device disclosed in an embodiment of the present application; Figure 2 This is one of the exploded views of the laser detection device disclosed in the embodiment of the present application; Figure 3 This is the second exploded view of the laser detection device disclosed in the embodiment of the present application; Figure 4 A partial structural schematic diagram of a laser detection device disclosed in an embodiment of the present application; Figure 5 A cross-sectional view of a laser detection device disclosed in an embodiment of the present application; Figure 6 A schematic diagram of the structure of the first laser module disclosed in the embodiment of the present application; Figure 7 This is a schematic diagram of the structure of the housing disclosed in the embodiment of the present application; Figure 8 This is a schematic diagram of the structure of the installation part disclosed in the embodiment of the present application.

[0009] Description of reference numerals: 110-housing, 111-first connecting portion, 1111-first convex portion, 1112-second mounting hole, 112-second connecting portion, 1121-second convex portion, 1122-third mounting hole, 113-first mounting surface, 114-second mounting surface, 120-side cover, 130-end cover, 140-mounting cavity; 200a-first laser module, 200b-second laser module, 210-laser body, 220-mounting portion, 221-through opening, 222-mounting body, 223-mounting sub-portion, 2231-through hole; 310a-first adjusting member, 310b-second adjusting member, 311a-first limiting portion, 311b-second limiting portion, 320a-first elastic member, 320b-second elastic member; 400-photoelectric conversion module, 410-opening; 510-main board, 520-connection column; 600-lens; 700-Filter module; 800-Driver board. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0011] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0012] The laser detection device provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0013] Please refer to Figures 1 to 8 As shown, a laser detection device is provided in an embodiment of the present application, including: a shell 110, a first laser module 200a and a second laser module 200b arranged side by side in the shell 110, at least two first adjustment members 310a and at least two first elastic members 320a, the number of the first adjustment members 310a and the first elastic members 320a is determined according to actual needs, and there is no restriction on this in the embodiment of the present application, and the first elastic member 320a is, for example, a spring.

[0014] Specifically, one of the first laser module 200a and the second laser module 200b is used to emit an indicating laser, and the other is used to emit a measuring laser. Optionally, the first laser module 200a is used to emit an indicating laser, and correspondingly, the second laser module 200b is used to emit a measuring laser. Of course, the first laser module 200a can also be used to emit a measuring laser, and correspondingly, the second laser module 200b is used to emit an indicating laser. It should be noted that the measuring laser is used for detection, which is invisible light, and the indicating laser is visible light, and its optical axis direction is the same as the optical axis direction of the measuring laser, so as to indicate the optical path of the measuring laser.

[0015] refer to Figures 2 to 4 As shown, the first adjustment members 310a are arranged in sequence along the circumference of the first laser module 200a, the first end of each first adjustment member 310a passes through the first laser module 200a, and is connected to the first connecting portion 111 of the shell 110, and the second end of each first adjustment member 310a is provided with a first limiting portion 311a, and the first end and the second end of the first adjustment member 310a are, for example, two opposite ends in the center line direction of the first adjustment member 310a.

[0016] Each first adjustment member 310a is sleeved with a corresponding first elastic member 320a. Optionally, the first adjustment member 310a may be sleeved with one first elastic member 320a or at least two first elastic members 320a. The first elastic member 320a is located between the first connection portion 111 and the first laser module 200a, and is used to press the first laser module 200a toward the first limiting portion 311a. The position of the first limiting portion 311a relative to the first connection portion 111 is adjustable, so that the optical axis direction of the indicating laser or the measuring laser is adjustable.

[0017] In the embodiment of the present application, each first adjustment member 310a is arranged in sequence along the circumference of the first laser module 200a, the first end of each first adjustment member 310a passes through the first laser module 200a, and is connected to the first connecting portion 111 of the shell 110, the second end of each first adjustment member 310a is provided with a first limiting portion 311a, and each first adjustment member 310a is sleeved with a corresponding first elastic member 320a, the first elastic member 320a is located between the first connecting portion 111 and the first laser module 200a, and is used to press the first laser module 200a toward the first limiting portion 311a. After such arrangement, the position of the first limiting portion 311a relative to the first connecting portion 111 is adjustable, so that the optical axis direction of the indicating laser or the measuring laser is adjustable. With such a configuration, when there is a deviation between the optical axis direction of the indicating laser and the optical axis direction of the measuring laser, or in other words, when the optical axis direction of the indicating laser is different from the optical axis direction of the measuring laser, the deviation between the optical axis direction of the indicating laser and the optical axis direction of the measuring laser can be reduced by adjusting the optical axis direction of the indicating laser or the optical axis direction of the measuring laser, thereby improving the detection accuracy of the laser detection device.

[0018] Furthermore, in the prior art, the first laser module 200a is usually installed first, and then the second laser module 200b is installed based on the first laser module 200a to ensure that the optical axis direction of the indicating laser is the same as the optical axis direction of the measuring laser. Compared with this solution, in the embodiment of the present application, the optical axis direction of the indicating laser or the optical axis direction of the measuring laser is adjustable, so that the first laser module 200a and the second laser module 200b can be installed at the same time, so that the assembly efficiency of the laser detection device provided in the embodiment of the present application is higher.

[0019] During actual use, when the optical axis direction of the indicating laser is different from the optical axis direction of the measuring laser, the position of the first laser module 200a is adjusted by adjusting the position of at least one first limiting portion 311a relative to the first connecting portion 111, thereby achieving the adjustment of the optical axis direction of the indicating laser or the optical axis direction of the measuring laser.

[0020] Optionally, the first laser module 200a is, for example, provided with a first through hole, and the first end of the first adjustment member 310a passes through the first through hole to pass through the first laser module 200a, and the cross-sectional area of ​​the first through hole is, for example, larger than the cross-sectional area of ​​the corresponding first adjustment member 310a, so that an adjustment margin is left between the first adjustment member 310a and the inner wall of the first through hole.

[0021] It should be noted that, in the process of adjusting the optical axis direction of the indicating laser or the optical axis direction of the measuring laser, the relative position between the first adjustment member 310a and the first laser module 200a will change. Due to the existence of the adjustment margin, this change can be better adapted. Moreover, due to the existence of the adjustment margin, excessive force between the first adjustment member 310a and the first laser module 200a can be prevented, thereby extending the service life of the first adjustment member 310a and the first laser module 200a.

[0022] As a specific implementation, the distance between the optical axis of the first laser module 200 a and the optical axis of the second laser module 200 b is, for example, 22 mm.

[0023] In a further embodiment, reference Figure 4 and Figure 7 As shown, a first convex portion 1111 is provided on one side of the first connecting portion 111 facing the first elastic member 320a, and the first convex portion 1111 extends in a direction close to the first elastic member 320a, and the first elastic member 320a is sleeved outside the first convex portion 1111. In this way, the first elastic member 320a can be positioned more conveniently and quickly with the help of the first convex portion 1111, and the first convex portion 1111 can limit the shaking of the first elastic member 320a, thereby improving the stability of the first elastic member 320a. In addition, when the first laser module 200a contacts the first protrusion 1111, the first protrusion 1111 can limit the first laser module 200a from continuing to move toward the direction close to the first connecting portion 111. In this way, by reasonably designing the length of the first protrusion 1111 in the compression direction of the first elastic member 320a, it is possible to prevent the first elastic member 320a from being damaged due to excessive compression of the first elastic member 320a caused by excessive movement of the first laser module 200a.

[0024] Further, there is, for example, a gap between the first elastic member 320a and the first convex portion 1111 to reduce the difficulty of assembling the first elastic member 320a and the first convex portion 1111. Specifically, the gap is, for example, 0.1 mm.

[0025] In another embodiment, reference Figures 2 to 4 As shown, the laser detection device also includes at least two second adjustment members 310b and at least two second elastic members 320b. The number of the second adjustment members 310b and the second elastic members 320b is determined according to actual needs, and there is no restriction on this in the embodiment of the present application. The second elastic member 320b is, for example, a spring.

[0026] The second adjustment members 310b are arranged in sequence along the circumference of the second laser module 200b, the first end of each second adjustment member 310b passes through the second laser module 200b, and is connected to the second connecting portion 112 of the shell 110, and the second end of each second adjustment member 310b is provided with a second limiting portion 311b, and the first end and the second end of the second adjustment member 310b are, for example, two opposite ends in the center line direction of the second adjustment member 310b.

[0027] Each second adjustment member 310b is sleeved with a corresponding second elastic member 320b. Optionally, the second adjustment member 310b may be sleeved with one second elastic member 320b or at least two second elastic members 320b. The second elastic member 320b is located between the second connection portion 112 and the second laser module 200b and is used to press the second laser module 200b toward the second limiting portion 311b. The position of the second limiting portion 311b relative to the second connection portion 112 is adjustable so that the optical axis directions of the indicating laser and the measuring laser are adjustable.

[0028] In this embodiment, the optical axis direction of the indicating laser or the optical axis direction of the measuring laser can be adjusted individually, or both the optical axis direction of the indicating laser and the optical axis direction of the measuring laser can be adjusted, thereby reducing the difficulty of adjusting the optical axis direction of the indicating laser and the optical axis direction of the measuring laser and improving the flexibility of adjustment.

[0029] Furthermore, according to the solution of the present embodiment, since the optical axis directions of the indicating laser and the measuring laser are both adjustable, this means that the error between the optical axis of the indicating laser and the optical axis of the measuring laser can be compensated by adjusting the first laser module 200a and the second laser module 200b at the same time. In this way, the adjustment requirements for the first laser module 200a and the second laser module 200b are reduced separately, which can reduce the requirements for the processing accuracy of the first laser module 200a and the second laser module 200b, thereby reducing the processing difficulty of the first laser module 200a and the second laser module 200b, and is conducive to improving the processing efficiency of the first laser module 200a and the second laser module 200b.

[0030] In addition, using the solution of this embodiment, if there is a processing error in the first laser module 200a, the processing error of the first laser module 200a can be compensated by adjusting the position of the first limit portion 311a relative to the first connecting portion 111. Similarly, if there is a processing error in the second laser module 200b, the processing error of the second laser module 200b can be compensated by adjusting the position of the second limit portion 311b relative to the second connecting portion 112. In addition, in actual use, taking the case where the first laser module 200a has a processing error as an example, and if the processing error of the first laser module 200a causes the error between the optical axis of the indicating laser and the optical axis of the measuring laser to exceed the adjustment range that can be achieved by adjusting the first limiter 311a of the first laser module 200a, that is, even if the first limiter 311a is adjusted to the extreme position, the optical axis of the indicating laser and the optical axis of the measuring laser cannot be made parallel. In this case, the processing error of the first laser module 200a can be compensated by adjusting the position of the second limiter 311b of the second laser module 200b relative to the second connecting portion 112. The same is true when the second laser module 200b has a processing error. In other words, the first limiter 311a of the first laser module 200a and the second limiter 311b of the second laser module 200b can be adjusted in coordination to make the optical axis of the indicating laser and the optical axis of the measuring laser parallel.

[0031] Optionally, the second laser module 200b is, for example, provided with a second through hole, and the first end of the second adjustment member 310b passes through the second through hole to pass through the second laser module 200b, and the cross-sectional area of ​​the second through hole is, for example, larger than the cross-sectional area of ​​the corresponding second adjustment member 310b, so that an adjustment margin is left between the second adjustment member 310b and the inner wall of the second through hole.

[0032] It should also be noted that in the process of adjusting the optical axis direction of the indicating laser or the optical axis direction of the measuring laser, the relative position between the second adjustment member 310b and the second laser module 200b will change. By leaving an adjustment margin between the second adjustment member 310b and the inner wall of the second through hole, this change can be better adapted to. Due to the existence of the adjustment margin, excessive force between the second adjustment member 310b and the second laser module 200b can be prevented, thereby extending the service life of the second adjustment member 310b and the second laser module 200b.

[0033] In a further embodiment, the first limiting portion 311a is fixed to the first adjusting member 310a, and the first end of the first adjusting member 310a is threadedly connected to the first connecting portion 111, so that the position of the first limiting portion 311a relative to the first connecting portion 111 is adjustable.

[0034] In this embodiment, the position of the first limiting portion 311a relative to the first connecting portion 111 can be changed by rotating the first adjusting member 310a, so that the position adjustment of the first limiting portion 311a is more convenient. In addition, the threaded connection method helps to simplify the structure of the laser detection device and is conducive to reducing the cost of the laser detection device. Furthermore, by fixing the first limiting portion 311a to the first adjusting member 310a, the connection between the first limiting portion 311a and the first adjusting member 310a is more reliable, which improves the stability of the first limiting portion 311a.

[0035] During actual use, for example, the first adjusting member 310a is rotated first to maintain a preset connection strength between the first adjusting member 310a and the first connecting portion 111. The rotation process does not require precise control of the specific rotation amount of the first adjusting member 310a, as long as it reaches a tightened state. Thereafter, the first adjusting member 310a is rotated in the opposite direction to fine-tune the position of the first limit portion 311a, thereby adjusting the optical axis of the indicating laser and the optical axis of the measuring laser to be parallel to each other. It should be noted that after the fine adjustment is completed, the first adjustment member 310a is still connected to the first connection portion 111, and during the fine adjustment process, the first elastic member 320a is always in a compressed state, that is, during the fine adjustment process, the first elastic member 320a always applies pressure to the first laser module 200a, under the action of the pressure, the first laser module 200a maintains contact with the first limit portion 311a, and at least part of the first laser module 200a is sandwiched between the first elastic member 320a and the first limit portion 311a. After the adjustment is completed, the first laser module 200a can be stably maintained at the adjusted position. In this adjustment method, the optical axis of the indicating laser and the optical axis of the measuring laser can be adjusted to be parallel to each other by a slight adjustment, thereby reducing the difficulty of adjustment.

[0036] Optionally, the first position limiting portion 311a is, for example, a part of the first adjusting member 310a. In this case, the first adjusting member 310a is, for example, a first bolt, and the nut of the first bolt is, for example, the first position limiting portion 311a. Of course, the first position limiting portion 311a may also be a structure additionally provided on the first adjusting member 310a. In this case, the first position limiting portion 311a is fixed to the first adjusting member 310a by, for example, welding or gluing.

[0037] Optionally, the first adjusting member 310a is provided with threads only at its first end, that is, the first adjusting member 310a except its first end is a bare rod structure. In this way, the first adjusting member 310a except its first end does not need to be processed with threads, thereby reducing the processing difficulty of the first adjusting member 310a.

[0038] It should be noted that, in this embodiment, the laser detection device may only include the first adjustment member 310a and the first elastic member 320a mentioned above, or may include the first adjustment member 310a, the first elastic member 320a, the second adjustment member 310b and the second elastic member 320b at the same time.

[0039] In other optional embodiments, the first adjusting member 310a may also slideably cooperate with the first connecting portion 111 in the direction of the center line of the first adjusting member 310a. In this case, the first connecting portion 111 is, for example, provided with a first locking mechanism, which is used to lock or unlock the first adjusting member 310a. When the first adjusting member 310a is in a locked state, the position of the first limiting portion 311a relative to the first connecting portion 111 is fixed. When the first adjusting member 310a is in an unlocked state, the first adjusting member 310a may drive the first limiting portion 311a to move along its own center line direction, thereby making the position of the first limiting portion 311a relative to the first connecting portion 111 adjustable.

[0040] In an optional embodiment, when the first end of the first adjusting member 310a is threadedly connected to the first connecting portion 111, the first limiting portion 311a may also be threadedly connected to the first adjusting member 310a. At this time, the position of the first limiting portion 311a on the first adjusting member 310a can be changed by rotating the first limiting portion 311a.

[0041] In an optional embodiment, when the first end of the first adjusting member 310a is threadedly connected to the first connecting portion 111, the first limiting portion 311a can also be rotatably connected to the second end of the first adjusting member 310a. At this time, the first limiting portion 311a, for example, cooperates with the first adjusting member 310a in the upper limit direction of the center line of the first adjusting member 310a to prevent the first limiting portion 311a from moving along the center line direction of the first adjusting member 310a.

[0042] In an optional embodiment, the relative position of the first end of the first adjusting member 310a and the first connecting portion 111 in the centerline direction of the first adjusting member 310a can remain unchanged. In this case, the first limiting portion 311a is, for example, a structure independent of the first adjusting member 310a, and the first limiting portion 311a is, for example, threadedly connected to the first adjusting member 310a. In actual use, the position of the first limiting portion 311a in the centerline direction of the first adjusting member 310a is changed by relatively rotating the first limiting portion 311a and the first adjusting member 310a, thereby changing the position of the first limiting portion 311a relative to the first connecting portion 111.

[0043] Optionally, the first end of the first adjustment member 310a is, for example, rotatably connected to the first connection portion 111, and cooperates with the first connection portion 111 in the upper limit position in the center line direction of the first adjustment member 310a, so that the relative positions of the first adjustment member 310a and the first connection portion 111 in the center line direction of the first adjustment member 310a remain unchanged, or the first end of the first adjustment member 310a is, for example, fixedly connected to the first connection portion 111, so that the relative positions of the first adjustment member 310a and the first connection portion 111 in the center line direction of the first adjustment member 310a remain unchanged.

[0044] In a further embodiment, the second limiting portion 311b is fixed to the second adjusting member 310b, and the first end of the second adjusting member 310b is threadedly connected to the second connecting portion 112, so that the position of the second limiting portion 311b relative to the second connecting portion 112 is adjustable.

[0045] In this embodiment, the position of the second limiting portion 311b relative to the second connecting portion 112 can be changed by rotating the second adjusting member 310b, so that the position adjustment of the second limiting portion 311b is more convenient. In addition, the threaded connection method helps to simplify the structure of the laser detection device and is conducive to reducing the cost of the laser detection device. Furthermore, by fixing the second limiting portion 311b to the second adjusting member 310b, the connection between the second limiting portion 311b and the second adjusting member 310b is more reliable, so that the stability of the second limiting portion 311b is better.

[0046] During actual use, for example, the second adjusting member 310b is first rotated to maintain a preset connection strength between the second adjusting member 310b and the second connecting portion 112. The rotation process does not require precise control of the specific rotation amount of the second adjusting member 310b, as long as it reaches a tightened state. Thereafter, the second adjusting member 310b is rotated in the opposite direction to fine-tune the position of the second limit portion 311b, thereby adjusting the optical axis of the indicating laser and the optical axis of the measuring laser to be parallel to each other. It should be noted that after the fine adjustment is completed, the second adjustment member 310b is still connected to the second connection portion 112, and during the fine adjustment process, the second elastic member 320b is always in a compressed state, that is, during the fine adjustment process, the second elastic member 320b always applies pressure to the second laser module 200b, under the action of the pressure, the second laser module 200b is kept in contact with the second limit portion 311b, and at least part of the second laser module 200b is sandwiched between the second elastic member 320b and the second limit portion 311b. After the adjustment is completed, the second laser module 200b can be stably maintained at the adjusted position. In this adjustment method, the optical axis of the indicating laser and the optical axis of the measuring laser can be adjusted to be parallel to each other by a slight adjustment, thereby reducing the difficulty of adjustment.

[0047] Optionally, the second limiting portion 311b is, for example, a part of the second adjusting member 310b. In this case, the second adjusting member 310b is, for example, a second bolt, and the nut of the second bolt is, for example, the second limiting portion 311b. Of course, the second limiting portion 311b may also be a structure additionally provided on the second adjusting member 310b. In this case, the second limiting portion 311b is fixed to the second adjusting member 310b by, for example, welding or gluing.

[0048] Optionally, the second adjusting member 310b is provided with a thread only at its first end, that is, the second adjusting member 310b except its first end is a bare rod structure. In this way, the second adjusting member 310b except its first end does not need to be processed with a thread, which reduces the processing difficulty of the second adjusting member 310b, thereby making the processing of the second adjusting member 310b more convenient.

[0049] In other optional embodiments, the second adjusting member 310b may also be slidably matched with the second connecting portion 112 in the center line direction of the second adjusting member 310b. In this case, the second connecting portion 112 is provided with a second locking mechanism, which is used to lock or unlock the second adjusting member 310b. When the second adjusting member 310b is in a locked state, the position of the second limiting portion 311b relative to the second connecting portion 112 is fixed. When the second adjusting member 310b is in an unlocked state, the second adjusting member 310b can drive the second connecting portion 112 to move along its own center line direction, thereby making the position of the second limiting portion 311b relative to the second connecting portion 112 adjustable.

[0050] In an optional embodiment, when the first end of the second adjusting member 310b is threadedly connected to the second connecting portion 112, the second limiting portion 311b may also be threadedly connected to the second adjusting member 310b. At this time, the position of the second limiting portion 311b on the second adjusting member 310b can be changed by rotating the second limiting portion 311b.

[0051] In an optional embodiment, when the first end of the second adjusting member 310b is threadedly connected to the second connecting portion 112, the second limiting portion 311b can also be rotatably connected to the second end of the second adjusting member 310b. At this time, the second limiting portion 311b, for example, cooperates with the second adjusting member 310b in the upper limit direction of the center line of the second adjusting member 310b to prevent the second limiting portion 311b from moving along the center line direction of the second adjusting member 310b.

[0052] In an optional embodiment, the relative position of the first end of the second adjusting member 310b and the second connecting portion 112 in the centerline direction of the second adjusting member 310b can remain unchanged. In this case, the second limiting portion 311b is, for example, a structure independent of the second adjusting member 310b, and the second limiting portion 311b is, for example, threadedly connected to the second adjusting member 310b. In actual use, the position of the second limiting portion 311b in the centerline direction of the second adjusting member 310b is changed by relatively rotating the second limiting portion 311b and the second adjusting member 310b, thereby changing the position of the second limiting portion 311b relative to the second connecting portion 112.

[0053] Optionally, the first end of the second adjusting member 310b is, for example, rotatably connected to the second connecting portion 112, and cooperates with the second connecting portion 112 in the upper limit position in the center line direction of the second adjusting member 310b, so that the relative position of the second adjusting member 310b and the second connecting portion 112 in the center line direction of the second adjusting member 310b can remain unchanged, or the first end of the second adjusting member 310b is, for example, fixedly connected to the second connecting portion 112, so that the relative position of the second adjusting member 310b and the second connecting portion 112 in the center line direction of the second adjusting member 310b remains unchanged.

[0054] In a further embodiment, reference Figure 7 As shown, a second convex portion 1121 is provided on one side of the second connection portion 112 facing the second elastic member 320b, and the second convex portion 1121 extends in a direction close to the second elastic member 320b, and the second elastic member 320b is sleeved outside the second convex portion 1121. In this way, the second elastic member 320b can be positioned more conveniently and quickly with the help of the second convex portion 1121, and the second convex portion 1121 can limit the shaking of the second elastic member 320b, thereby improving the stability of the second elastic member 320b. In addition, when the second laser module 200b contacts the second protrusion 1121, the second protrusion 1121 can limit the movement of the second laser module 200b toward the second connecting portion 112. In this way, by reasonably designing the length of the second protrusion 1121 in the compression direction of the second elastic member 320b, it is possible to prevent the second elastic member 320b from being damaged due to excessive compression of the second elastic member 320b caused by excessive movement of the second laser module 200b.

[0055] Furthermore, there is, for example, a gap between the second elastic member 320 b and the second convex portion 1121 to reduce the difficulty of assembling the second elastic member 320 b and the second convex portion 1121 . Specifically, the gap is, for example, 0.1 mm.

[0056] In a further embodiment, the first elastic member 320a is connected to both the first connection portion 111 and the first laser module 200a, and the second elastic member 320b is connected to both the second connection portion 112 and the second laser module 200b to improve the stability of the first elastic member 320a and the second elastic member 320b.

[0057] In a further embodiment, the two end faces of the first elastic member 320a are respectively parallel to a side of the first connecting portion 111 facing the first elastic member 320a and a side of the first laser module 200a facing the first elastic member 320a, so that the two end faces of the first elastic member 320a are respectively fitted with the first connecting portion 111 and the first laser module 200a. The two end faces of the first elastic member 320a are, for example, two opposite sides of the first elastic member 320a in the direction of its own center line, that is, a side of the first elastic member 320a facing the first connecting portion 111 is cut into a plane, and a side of the first elastic member 320a facing the first laser module 200a is cut into a plane. With such arrangement, the contact areas between the first elastic member 320a and the first connecting portion 111 and the first laser module 200a are larger, which can reduce the difficulty of assembling the first elastic member 320a, the first connecting portion 111 and the first laser module 200a, and improve the stability of the first elastic member 320a. With such arrangement, excessive local force on the first connecting portion 111 and the first laser module 200a can be prevented.

[0058] It should be noted that, in this embodiment, the laser detection device may only include the first adjustment member 310a and the first elastic member 320a mentioned above, or may include the first adjustment member 310a, the first elastic member 320a, the second adjustment member 310b and the second elastic member 320b at the same time. In addition, in other optional embodiments, the first elastic member 320a and the first connecting portion 111 opposite to each other in the center line direction of the first elastic member 320a may also be in an intersecting relationship, and similarly, the first elastic member 320a and the first laser module 200a opposite to each other in the center line direction of the first elastic member 320a may also be in an intersecting relationship.

[0059] In a further embodiment, the two end faces of the second elastic member 320b are respectively parallel to a side of the second connecting portion 112 facing the second elastic member 320b and a side of the second laser module 200b facing the second elastic member 320b, so that the two end faces of the second elastic member 320b are respectively fitted with the second connecting portion 112 and the second laser module 200b. The two end faces of the second elastic member 320b are, for example, two opposite sides of the second elastic member 320b in the direction of its own center line, that is, a side of the second elastic member 320b facing the second connecting portion 112 is cut into a plane, and a side of the second elastic member 320b facing the second laser module 200b is cut into a plane. With such arrangement, the contact areas between the second elastic member 320b and the second connecting portion 112 and the second laser module 200b are larger, which can reduce the difficulty of assembling the second elastic member 320b, the second connecting portion 112 and the second laser module 200b, and improve the stability of the second elastic member 320b. With such arrangement, excessive local force on the second connecting portion 112 and the second laser module 200b can be prevented.

[0060] In other optional embodiments, the two opposite surfaces of the second elastic member 320b and the second connecting portion 112 in the center line direction of the second elastic member 320b may also be intersecting. Similarly, the two opposite surfaces of the second elastic member 320b and the second laser module 200b in the center line direction of the second elastic member 320b may also be intersecting.

[0061] In another embodiment, reference Figure 3 and Figure 4 As shown, the laser detection device also includes a photoelectric conversion module 400 and a first threaded member (not shown in the figure), the shell 110 is provided with a first mounting surface 113, the photoelectric conversion module 400 is in contact with the first mounting surface 113, the photoelectric conversion module 400 is provided with an opening 410, one end of the first threaded member is provided with a pressing portion, and the other end passes through the opening 410 and is threadedly connected to the shell 110, the pressing portion is located on the side of the photoelectric conversion module 400 away from the first mounting surface 113, the pressing portion can contact or separate from the photoelectric conversion module 400 to lock or unlock the photoelectric conversion module 400, that is, the pressing portion and the first mounting surface 113 can jointly clamp the photoelectric conversion module 400 to fix the position of the photoelectric conversion module 400 in the axial direction of the first threaded member, and the axis of the first threaded member is, for example, parallel to the optical axis of the receiving laser. The cross-sectional area of ​​the opening 410 is larger than the cross-sectional area of ​​the first screw member, so that the photoelectric conversion module 400 can move relative to the first screw member in a plane perpendicular to the axis of the first screw member in the unlocked state, so that at least part of the light receiving area of ​​the photoelectric conversion module 400 is located on the optical axis of the received laser. Optionally, for example, the center of the light receiving area of ​​the photoelectric conversion module 400 is located on the optical axis of the received laser.

[0062] It should be noted that the optical axis of the measuring laser is parallel to the optical axis of the indicating laser, and the two can be regarded as a beam of laser. For the convenience of description, the laser is defined as a first laser. The first laser will be reflected after passing through the space to be inspected, and the optical axis of the first laser after reflection is, for example, parallel to the optical axis of the first laser before reflection. The first laser after reflection is the receiving laser mentioned above. The light receiving area of ​​the photoelectric conversion module 400 is used to receive the receiving laser, and the photoelectric conversion module 400 can convert the receiving laser into an electrical signal and input it into a corresponding device. Specifically, the corresponding device here refers to, for example, the main board 510 below. The photoelectric conversion module 400 is, for example, a photosensitive element, and the specific position of the photoelectric conversion module 400 in a plane perpendicular to the axis of the first screw member depends on the position of the receiving laser, which is not limited in the embodiment of the present application.

[0063] In this embodiment, by adjusting the position of the photoelectric conversion module 400 in a plane perpendicular to the axis of the first screw member, at least part of the light receiving area of ​​the photoelectric conversion module 400 can be located on the optical axis of the laser receiving device, thereby improving the detection accuracy. In addition, this adjustment method does not require additional elastic members, thereby simplifying the structure of the laser detection device.

[0064] Optionally, when the photoelectric conversion module 400 is in a locked state, the plane where the photoelectric conversion module 400 is located is, for example, a first plane, the first laser module 200a and the second laser module 200b are, for example, both in the second plane, the first plane is, for example, parallel to the second plane, and the first plane and the second plane are, for example, arranged at intervals in the direction of the optical axis of the received laser, and the distance between the two can be determined according to the light effect to be achieved.

[0065] Furthermore, the laser detection device also includes a lens 600 and a filter module 700. The lens 600, the filter module 700 and the photoelectric conversion module 400 are, for example, arranged in sequence along the optical axis direction of the received laser, so that the received laser passes through the lens 600, the filter module 700 and the photoelectric conversion module 400 in sequence, and the distance between the filter module 700 and the lens 600 is 90-100 mm, optionally, for example, 90 mm, 92 mm, 95 mm or 100 mm, and the lens 600 is, for example, a collimating lens.

[0066] In this embodiment, the filter module 700 can filter out at least part of the stray light and interference signals, thereby improving the detection accuracy of the laser detection device. Further, in this embodiment, the distance between the filter module 700 and the lens 600 is 90-100 mm. After such a setting, the optical performance of the filter module 700, the lens 600 and the photoelectric conversion module 400 is good, thereby further improving the detection accuracy of the laser detection device.

[0067] As a specific implementation, the filter module 700 includes, for example, a filter, and the filter module 700 is, for example, bonded to the housing 110. The housing 110 is, for example, provided with a first mounting hole communicating with its inner cavity, the lens 600 is located in the first mounting hole, and there is a gap between the lens 600 and the inner wall of the first mounting hole, and the gap is, for example, 0.05 mm.

[0068] In other optional embodiments, the laser detection device may not include the filter module 700, or the laser detection device may include the filter module 700, but the distance between the filter module 700 and the lens 600 is less than 90 mm or greater than 100 mm.

[0069] As a specific implementation, the first threaded member is, for example, a third bolt, and correspondingly, the nut of the third bolt is, for example, a pressing portion. In addition, a side of the photoelectric conversion module 400 away from the pressing portion is, for example, directly attached to the housing 110 to improve the stability of the photoelectric conversion module 400.

[0070] During actual use, the position of the pressing portion relative to the photoelectric conversion module 400 is adjusted by rotating the first threaded member so that the pressing portion is in contact with or separated from the photoelectric conversion module 400. When the pressing portion is separated from the photoelectric conversion module 400, that is, the photoelectric conversion module 400 is in an unlocked state, the photoelectric conversion module 400 is adjusted to a preset position based on the first threaded member, and then the first threaded member is rotated so that the pressing portion is in contact with the photoelectric conversion module 400, thereby locking the photoelectric conversion module 400.

[0071] In other optional embodiments, the cross-sectional area of ​​the opening 410 may also be equal to the cross-sectional area of ​​the first threaded member. After such a configuration, when the photoelectric conversion module 400 is in an unlocked state, the positions of the photoelectric conversion module 400 and the first threaded member in a plane perpendicular to the axis of the first threaded member are relatively fixed.

[0072] In a further embodiment, the number of the first screw members is at least two, and the first screw members are arranged at intervals along the circumference of the photoelectric conversion module 400. The more the number of the first screw members is, the better the connection reliability between the photoelectric conversion module 400 and the housing 110 is, so setting the number of the first screw members to at least two can make the connection between the photoelectric conversion module 400 and the housing 110 more reliable.

[0073] In other optional embodiments, the number of the first threaded member may also be one.

[0074] In a further embodiment, reference Figure 4As shown, the laser detection device also includes a main board 510. The main board 510 and the photoelectric conversion module 400 are both arranged in the housing 110 and arranged at intervals along a first direction. The first direction is the same as the optical axis direction of the measuring laser. Specifically, the first direction is, for example, Figure 4 The main board 510 is arranged away from the receiving end of the photoelectric conversion module 400 and is electrically connected to the photoelectric conversion module 400. In this way, the main board 510 and the photoelectric conversion module 400 are staggered in the first direction, thereby preventing the two from interfering with each other.

[0075] As a specific implementation method, refer to Figure 4 As shown, the main board 510 is connected to the housing 110 , for example, via at least two connecting columns 520 , and the connecting columns 520 are, for example, arranged at intervals along the circumference of the main board 510 .

[0076] In other optional embodiments, two opposite surfaces of the mainboard 510 and the photoelectric conversion module 400 in the first direction may also be attached to each other.

[0077] In another embodiment, reference Figure 6 As shown, at least one of the first laser module 200a and the second laser module 200b includes a laser body 210, a mounting portion 220, and a second threaded member. The laser body 210 is used to emit an indication laser or a measurement laser. The outer sleeve of the laser body 210 is provided with the mounting portion 220. One end of the second threaded member passes through the mounting portion 220 and abuts against the laser body 210, so that the mounting portion 220 and the laser body 210 are relatively fixed, and the first end of the first adjustment member 310a passes through the mounting portion 220 to pass through the first laser module 200a. Such a configuration will not damage the structure of the laser body 210, thereby extending the service life of the laser body 210.

[0078] Optionally, there is a gap between the inner wall of the mounting portion 220 and the laser body 210, so that the mounting portion 220 can be more conveniently mounted on the laser body 210, and the gap is, for example, 0.05 mm.

[0079] Optionally, when the second threaded member is installed in place, for example, one end of the second threaded member passing through the installation portion 220 is further bonded to the laser body 210 to prevent the second threaded member from being separated from the laser body 210 .

[0080] Further, in the case where the laser detection device includes the second adjustment member 310b mentioned above, the first end of the second adjustment member 310b, for example, passes through the mounting portion 220 of the second laser module 200b to pass through the second laser module 200b.

[0081] In other optional embodiments, one end of the second threaded member may also pass through the mounting portion 220 and be threadedly connected to the laser body 210 so that the mounting portion 220 and the laser body 210 are relatively fixed.

[0082] In an optional embodiment, the mounting portion 220, for example, includes a mounting body 222 and a mounting sub-portion, the mounting sub-portion is arranged around the mounting body 222, and the two can be integrally formed, the number of first adjustment members 310a is three, each first adjustment member 310a passes through the mounting sub-portion to pass through the mounting portion 220, one end of the second threaded member passes through the side wall of the mounting sub-portion and the side wall of the mounting body 222 in sequence, and abuts against the laser body 210.

[0083] In another alternative embodiment, reference Figure 8 As shown, the mounting portion 220 may also include a mounting body 222 and three mounting sub-parts 223, the three mounting sub-parts 223 are integrally formed with the mounting body 222, the three mounting sub-parts 223 are arranged at intervals along the circumference of the mounting portion 220, and each mounting sub-part 223 is provided with a through hole 2231, specifically, the through hole 2231 is, for example, the first through hole or the second through hole mentioned above. The number of the first adjustment members 310a is three, and the first adjustment members 310a correspond to the mounting sub-parts 223 one by one. The first end of the first adjustment member 310a passes through the corresponding through hole 2231 to pass through the mounting portion 220, one end of the second threaded member passes through the side wall of the mounting body 222 and abuts against the laser body 210, and the second threaded member is located between at least one group of two adjacent mounting sub-parts 223. After such arrangement, the mounting portion 220 is roughly triangular, and the three vertices of the triangle are all provided with first adjustment members 310a, which means that the three vertices of the triangle are all connected to the first connecting portion 111. With such an arrangement, the connection between the first laser module 200a and the first connecting portion 111 is relatively stable and reliable, and the number of first adjustment members 310a is relatively small, which is conducive to simplifying the structure of the laser detection device. In addition, compared with the above-mentioned solution in which the mounting sub-parts are arranged around the mounting body 222, in this embodiment, the three mounting sub-parts 223 consume less material, which is conducive to reducing the cost of the laser detection device and can reduce the weight of the laser detection device.

[0084] In other optional embodiments, the number of the first adjustment members 310a may be greater than or less than three.

[0085] In a further embodiment, the three mounting sub-parts 223 are evenly arranged along the circumference of the mounting body 222, for example, the mounting body 222 is a circular ring structure, the through holes 2231 are circular holes, and each through hole 2231 is located outside the circle where the outer wall of the mounting body 222 is located, and is tangent to the circle where the outer wall of the mounting body 222 is located. In this way, the three through holes 2231 are distributed more evenly on the mounting body 222, which makes the overall force of the mounting part 220 more uniform, thereby extending the service life of the mounting part 220 and facilitating the improvement of the stability of the mounting part 220. In addition, in this way, the mounting body 222 and the three mounting sub-parts 223 consume less material as a whole, thereby reducing the cost of the laser detection device and reducing the weight of the laser detection device.

[0086] In a further embodiment, three mounting sub-portions 223 are evenly arranged along the circumference of the mounting body 222, the mounting body 222 is a circular ring structure, each mounting sub-portion 223 is a circular ring structure, each mounting sub-portion 223 is located outside the circle where the outer side wall of the mounting body 222 is located, and is tangent to the circle where the outer side wall of the mounting body 222 is located. In other words, the circle where the outer side wall of each mounting sub-portion 223 is located is tangent to the circle where the outer side wall of the mounting body 222 is located.

[0087] In this embodiment, the three through holes 2231 are also evenly distributed on the mounting body 222, which also makes the mounting portion 220 more evenly stressed as a whole, thereby extending the service life of the mounting portion 220 and improving the stability of the mounting portion 220. In addition, in this configuration, the mounting body 222 and the three mounting sub-parts 223 as a whole also consume less material, thereby also reducing the cost of the laser detection device and reducing the weight of the laser detection device.

[0088] Furthermore, the three mounting sub-portions 223 are, for example, located in the same circle and are tangent to the circle. The center of the circle coincides with the center of the mounting body 222, and the outer wall of the mounting body 222 is, for example, located in the circle, so that the mounting body 222 and the three mounting sub-portions 223 consume less material as a whole.

[0089] As a specific implementation manner, the mounting sub-portions 223 mentioned above are, for example, all smoothly transitionally connected to the outer side wall of the mounting body 222 .

[0090] In a further embodiment, the two mounting sub-portions 223 adjacent to the second threaded member are symmetrical about the center plane of the second threaded member. The center line of the second threaded member and the center line of the mounting body 222 are, for example, perpendicular to each other, and the plane formed by the center line of the second threaded member and the center line of the mounting body 222 is, for example, the center plane of the second threaded member. This arrangement of the second threaded member also makes the overall force of the mounting portion 220 more uniform, thereby extending the service life of the mounting portion 220 and facilitating the improvement of the stability of the mounting portion 220.

[0091] In other optional embodiments, the two mounting sub-portions 223 adjacent to the second threaded member may not be symmetrical about the second threaded member.

[0092] In a further embodiment, the number of the second threaded members is at least two, and the second threaded members are arranged at intervals along the circumference of the mounting portion 220. The more the number of the second threaded members is, the better the connection reliability between the mounting portion 220 and the laser body 210 is, so that the number of the second threaded members is set to at least two, and the mounting portion 220 can be more reliably connected to the laser body 210.

[0093] Optionally, refer to Figure 6 As shown, the side wall of the installation body 222 is, for example, provided with at least two through-holes 221 at intervals, and one end of each second threaded member passes through the corresponding through-hole 221 and abuts against the laser body 210 .

[0094] In other optional embodiments, the number of the second threaded member may also be one. Accordingly, only one side wall of the mounting body 222 is provided with a through hole 221 , and one end of the second threaded member passes through the through hole 221 and abuts against the laser body 210 .

[0095] In a further embodiment, the laser body 210 is provided with an indicator mark, and the mounting portion 220 is sleeved at the position where the indicator mark is located, so that the end surface of one end of the laser body 210 is located in the first connection portion 111 or in the second connection portion 112, that is, the laser body 210 does not protrude from the side of the first connection portion 111 away from the mounting portion 220, or the laser body 210 does not protrude from the side of the second connection portion 112 away from the mounting portion 220. In addition, the side of the first connection portion 111 away from the mounting portion 220 is, for example, flush with the side of the second connection portion 112 away from the mounting portion 220. With the aid of the indicator mark, the installation position of the mounting portion 220 can be determined more conveniently and quickly, thereby reducing the installation difficulty of the mounting portion 220 and improving the installation efficiency of the mounting portion 220. In addition, when assembling at least two first laser modules 200a or at least two second laser modules 200b, the presence of the indicator mark is conducive to ensuring the consistency of each first laser module 200a and each second laser module 200b. During actual use, if the error between the installation position of the mounting portion 220 and the preset installation position is large, the end face of one end of the laser body 210 may protrude from the side of the first connecting portion 111 away from the mounting portion 220 or protrude from the side of the second connecting portion 112 away from the mounting portion 220. Therefore, by setting an indicator mark, the first laser module 200a and the second laser module 200b can be installed more accurately in the preset installation position, thereby preventing one end of the laser body 210 from protruding from the side of the first connecting portion 111 away from the mounting portion 220 or protruding from the side of the second connecting portion 112 away from the mounting portion 220.

[0096] Optionally, the indication mark is, for example, a pattern drawn on the laser body 210 or an indication member additionally provided on the laser body 210, such as an indication sticker.

[0097] Optionally, refer to Figure 4 and Figure 7 As shown, the first connecting portion 111 is, for example, provided with a second mounting hole 1112, and one end of the laser body 210 of the first laser module 200a is, for example, inserted into the second mounting hole 1112; the second connecting portion 112 is, for example, provided with a third mounting hole 1122, and one end of the laser body 210 of the second laser module 200b is, for example, inserted into the third mounting hole 1122.

[0098] In the actual processing, for example, the position of the indicator mark corresponding to the first laser module 200a is determined according to the initial installation position of the first laser module 200a and the maximum compression amount of the first elastic member 320a, as long as it is ensured that when the first elastic member 320a is in the maximum compression state, the laser body 210 of the first laser module 200a does not protrude from the side of the first connecting portion 111 away from the mounting portion 220. Similarly, for example, the position of the indicator mark corresponding to the second laser module 200b is determined according to the initial installation position of the second laser module 200b and the maximum compression amount of the second elastic member 320b, as long as it is ensured that when the second elastic member 320b is in the maximum compression state, the laser body 210 of the second laser module 200b does not protrude from the side of the second connecting portion 112 away from the mounting portion 220.

[0099] In other optional embodiments, the laser body 210 may not be provided with an indicator mark.

[0100] In another embodiment, reference Figure 5 and Figure 7 As shown, the laser detection device also includes a side cover 120 and an end cover 130, and the housing 110, the side cover 120 and the end cover 130 together enclose an installation cavity 140. The laser detection device also includes a drive plate 800, a portion of the first laser module 200a, a portion of the second laser module 200b, the drive plate 800, the main board 510 and the photoelectric conversion module 400 are all arranged in the installation cavity 140, and the drive plate 800 is electrically connected to the main board 510 mentioned above, and the drive plate 800 is electrically connected to the first laser module 200a and the second laser module 200b to control the operation of the first laser module 200a and the second laser module 200b. After such a setting, the housing 110 can block external impact, thereby extending the service life of the first laser module 200a, the second laser module 200b, the drive plate 800 and the main board 510.

[0101] Further, the first mounting surface 113 mentioned above is, for example, arranged toward the end cover 130, the main board 510 and the photoelectric conversion module 400 are both located between the first mounting surface 113 and the end cover 130, and the end cover 130 is detachably connected to the housing 110. With such an arrangement, the end cover 130 can be easily disassembled and assembled, and when the end cover 130 is removed, the main board 510 and the photoelectric conversion module 400 can be easily disassembled and assembled or maintained, thereby reducing the difficulty of disassembling and assembling and maintaining the main board 510 and the photoelectric conversion module 400.

[0102] Furthermore, the housing 110 is provided with a second mounting surface 114, which is perpendicular to the first mounting surface 113, and is disposed toward the side cover 120. The driving board 800, a portion of the first laser module 200a, and a portion of the second laser module 200b are all located between the second mounting surface 114 and the side cover 120, and the side cover 120 is detachably connected to the housing 110. With such a configuration, the side cover 120 is convenient to disassemble and assemble, and when the side cover 120 is removed, the driving board 800, the first laser module 200a, and the second laser module 200b can be conveniently disassembled and assembled or maintained, thereby reducing the difficulty of disassembling and assembling and the difficulty of maintaining the driving board 800, the first laser module 200a, and the second laser module 200b.

[0103] It should be noted that the parallelism in the embodiments of the present application does not mean that no error is allowed, but it is regarded as parallel within the allowable error range, and the size of the error depends on the specific circumstances.

[0104] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A laser detection device, characterized in that: include: A housing (110) and a first laser module (200a) and a second laser module (200b) arranged side by side on the housing (110), wherein one of the first laser module (200a) and the second laser module (200b) is used to emit an indication laser, and the other is used to emit a measurement laser; At least two first adjustment members (310a) and at least two first elastic members (320a), each of the first adjustment members (310a) being arranged in sequence along the circumference of the first laser module (200a), the first end of each of the first adjustment members (310a) passing through the first laser module (200a) and being connected to the first connecting portion (111) of the housing (110), the second end of each of the first adjustment members (310a) being provided with a first limiting portion (311a), and each of the first adjustment members (310a) being sleeved with a corresponding first elastic member (320a), the first elastic member (320a) being located between the first connecting portion (111) and the first laser module (200a) and being used to press the first laser module (200a) toward the first limiting portion (311a), and the position of the first limiting portion (311a) relative to the first connecting portion (111) being adjustable so that the optical axis direction of the indicating laser or the measuring laser is adjustable.

2. The laser detection device according to claim 1, characterized in that: The laser detection device further comprises at least two second adjustment members (310b) and at least two second elastic members (320b), each of the second adjustment members (310b) being arranged in sequence along the circumference of the second laser module (200b), the first end of each of the second adjustment members (310b) passing through the second laser module (200b) and being connected to the second connecting portion (112) of the housing (110), the second end of each of the second adjustment members (310b) being provided with a second limiting portion (311b), and each of the second adjustment members (310b) being sleeved with a corresponding second elastic member (320b), the second elastic member (320b) being located between the second connecting portion (112) and the second laser module (200b) and being used to press the second laser module (200b) toward the second limiting portion (311b), and the position of the second limiting portion (311b) relative to the second connecting portion (112) being adjustable so that the optical axis directions of the indicating laser and the measuring laser are adjustable.

3. The laser detection device according to claim 2, characterized in that: The first limiting portion (311a) is fixedly arranged on the first adjusting member (310a), and the first end of the first adjusting member (310a) is threadedly connected to the first connecting portion (111), so that the position of the first limiting portion (311a) relative to the first connecting portion (111) is adjustable; And / or, the second limiting portion (311b) is fixedly arranged on the second adjusting member (310b), and the first end of the second adjusting member (310b) is threadedly connected to the second connecting portion (112), so that the position of the second limiting portion (311b) relative to the second connecting portion (112) is adjustable.

4. The laser detection device according to claim 2, characterized in that: The two end surfaces of the first elastic member (320a) are respectively parallel to a side of the first connecting portion (111) facing the first elastic member (320a) and a side of the first laser module (200a) facing the first elastic member (320a), so that the two end surfaces of the first elastic member (320a) are respectively in contact with the first connecting portion (111) and the first laser module (200a); And / or, the two end surfaces of the second elastic member (320b) are respectively parallel to a side of the second connecting portion (112) facing the second elastic member (320b) and a side of the second laser module (200b) facing the second elastic member (320b), so that the two end surfaces of the second elastic member (320b) are respectively in contact with the second connecting portion (112) and the second laser module (200b).

5. The laser detection device according to claim 1, characterized in that: At least one of the first laser module (200a) and the second laser module (200b) comprises a laser body (210), a mounting portion (220), and a second threaded member; the laser body (210) is used to emit the indication laser or the measurement laser; the mounting portion (220) is sleeved on the outside of the laser body (210); one end of the second threaded member passes through the mounting portion (220) and abuts against the laser body (210) so that the mounting portion (220) and the laser body (210) are relatively fixed; and a first end of the first adjustment member (310a) passes through the mounting portion (220) of the first laser module (200a) so as to pass through the first laser module (200a).

6. The laser detection device according to claim 5, characterized in that: The mounting portion (220) comprises a mounting body (222) and three mounting sub-parts (223); the three mounting sub-parts (223) are integrally formed with the mounting body (222); the three mounting sub-parts (223) are arranged at intervals along the circumference of the mounting body (222); each mounting sub-part (223) is provided with a through hole (2231); the number of the first adjustment members (310a) is three; the first adjustment members (310a) correspond to the through holes (2231) in a one-to-one manner; and the first ends of the first adjustment members (310a) pass through the corresponding through holes (2231) to pass through the mounting portion (220); One end of the second threaded member passes through the side wall of the mounting body (222) and abuts against the laser body (210), and the second threaded member is located between at least one group of two adjacent mounting sub-parts (223).

7. The laser detection device according to claim 6, characterized in that: The three mounting sub-portions (223) are evenly arranged along the circumference of the mounting body (222); the mounting body (222) is a circular ring structure, and the two mounting sub-portions (223) adjacent to the second threaded member are symmetrical about the center plane of the second threaded member; The through holes (2231) are circular holes, and each of the through holes (2231) is located outside the circle where the outer wall of the installation body (222) is located, and is tangent to the circle where the outer wall of the installation body (222) is located; or, each of the installation sub-parts (223) is a circular ring structure, and each of the installation sub-parts (223) is located outside the circle where the outer wall of the installation body (222) is located, and is tangent to the circle where the outer wall of the installation body (222) is located.

8. The laser detection device according to claim 5, characterized in that: The laser body (210) is provided with an indication mark, and the mounting portion (220) is sleeved at the position where the indication mark is located, so that an end surface of one end of the laser body (210) is located inside the first connecting portion (111).

9. The laser detection device according to claim 1, characterized in that: The laser detection device further comprises a photoelectric conversion module (400) and a first threaded member, the housing (110) being provided with a first mounting surface (113), the photoelectric conversion module (400) being in contact with the first mounting surface (113), the photoelectric conversion module (400) being provided with an opening (410), one end of the first threaded member being provided with a pressing portion, the other end of the first threaded member passing through the opening (410) and being threadedly connected to the housing (110), the pressing portion being able to contact or separate from the photoelectric conversion module (400) to lock or unlock the photoelectric conversion module (400), and the cross-sectional area of ​​the opening (410) being larger than the cross-sectional area of ​​the first threaded member, so that the photoelectric conversion module (400) can move relative to the first threaded member in an unlocked state in a plane perpendicular to the axis of the first threaded member, so that at least a portion of a light receiving area of ​​the photoelectric conversion module (400) is located on an optical axis for receiving laser light.

10. The laser detection device according to claim 9, characterized in that: The number of the first threaded members is at least two, and the first threaded members are arranged at intervals along the circumference of the photoelectric conversion module (400); And / or, the laser detection device further comprises a main board (510), the main board (510) and the photoelectric conversion module (400) are both arranged on the housing (110) and spaced apart along a first direction, the first direction being the same as the direction of the optical axis of the measuring laser, and the main board (510) is arranged away from the receiving end of the photoelectric conversion module (400) and is electrically connected to the photoelectric conversion module (400).

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