Demarcation device with detachable window

Abstract

The invention relates to the technical field of laser demarcation instruments, in particular to a demarcation instrument with a detachable window, which comprises a shell module, the movement module is fixedly arranged in the shell module; the laser module is fixedly arranged on the movement module and exposed outside the shell module, and the laser module is used for emitting a laser beam; the window module is fixedly arranged outside the shell module and surrounds the laser module, and the window module is used for allowing a laser beam to penetrate through; the window module comprises a window mechanism, a fixed mechanism and a movable mechanism, the window mechanism is movably arranged outside the shell module, the fixed mechanism is fixedly arranged outside the shell module, and the movable mechanism is detachably clamped to the side, away from the shell module, of the fixed mechanism. According to the invention, the inner surface of the window mechanism can be cleaned or the laser module needs to be maintained and adjusted without dismounting by a screwdriver tool, the process is relatively convenient and rapid, and the situation of screw slipping and failure after bolt connection is dismounted and mounted for multiple times is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of laser line projectors, and in particular to a line projector with a detachable window. Background Art

[0002] A laser line projector is a leveling measuring device that directs the laser beam emitted by a laser device into the telescope tube of a level and emits the laser beam along the sighting axis of the line projector. Based on this, a laser line projector is usually provided with a transparent window for the laser beam to emit, so as to meet the requirements of laser beam penetration and protection of the laser device at the same time.

[0003] For example, an easy-to-use 360° laser line projector with authorization announcement number CN210533367U includes a shell module and a core module installed inside the shell module; wherein, the core module is provided with a laser device for emitting a laser beam, and the shell module is provided with a transparent window for the laser beam to penetrate, and the transparent window is installed on the outside of the shell module by bolts; when in use, the laser beam of the core module will penetrate the transparent window of the shell module to realize the propagation of the laser path.

[0004] However, the transparent window of the existing laser projector is installed on the outside of the shell module with bolts. When the inner surface of the transparent window needs to be cleaned or the laser device needs to be repaired and adjusted, the transparent window needs to be disassembled with the help of a screwdriver tool. This not only makes the steps cumbersome, but also the bolts may slip after multiple disassembly and installation, making the transparent window difficult to install. Summary of the invention

[0005] In order to achieve cleaning of the inner surface of the window mechanism or maintenance and adjustment of the laser module without the need for disassembly using a screwdriver tool, the present application provides a projection device with a detachable window.

[0006] The above-mentioned purpose of the present application is achieved through the following technical solutions: A projection instrument with a detachable window comprises a shell module; a movement module, which is fixedly arranged inside the shell module; a laser module, which is fixedly arranged on the movement module and exposed outside the shell module, and is used to emit a laser beam; a window module, which is fixedly arranged outside the shell module and surrounds the laser module, and is used for the laser beam to penetrate; the window module comprises a window mechanism, a fixing mechanism and a movable mechanism, wherein the window mechanism is movably arranged outside the shell module and surrounds the laser module, the fixing mechanism is fixedly arranged outside the shell module, and the fixing mechanism is sleeved on the outside of the window mechanism to limit the window mechanism from being separated from the shell module, the movable mechanism is detachably clamped on a side of the fixing mechanism away from the shell module, and the movable mechanism is pressed against one side of the window mechanism to push the other side of the window mechanism against the outside of the shell module.

[0007] Optionally, the window modules are configured in three groups, and the three groups of window modules are respectively arranged on two adjacent sides and a top of the outer periphery of the shell module, wherein the angle between the plane formed by one side of any two groups of window modules close to each other and the horizontal plane is 45 degrees.

[0008] Optionally, the shell module is provided with a stepped groove, a first sealing ring is movably provided at the bottom of the stepped groove, and the window mechanism is pressed against the inner side of the first sealing ring; the fixing mechanism includes a fixing part, a supporting part, a limiting part and an elastic clamping part, the fixing part is arranged at the top of the stepped groove, and the fixing part is pressed against the outer side of the first sealing ring to limit the first sealing ring from separating from the shell module, the supporting part is arranged on the fixing part, and the supporting part is pressed against the movable mechanism to support the window mechanism to have light transmission conditions, the limiting part is arranged on the inner side of the supporting part, and the limiting part is sleeved on the window mechanism to limit the view The window mechanism is separated from the shell module, the elastic clamping part is arranged on the outside of the supporting part, the movable mechanism is provided with a clamping groove which is clamped and matched with the elastic clamping part, and when the elastic clamping part and the clamping groove are clamped and locked, the elastic clamping part extends and is exposed outside the movable mechanism; the movable mechanism includes a top cover plate, a protective layer and a second sealing ring, the top cover plate is provided with a connecting hole, the protective layer is fixedly arranged on the top of the top cover plate, the second sealing ring is fixedly arranged on the bottom of the top cover plate, and the protective layer and the second sealing ring are connected through the connecting hole, and the window mechanism is pressed against the second sealing ring on the side away from the first sealing ring.

[0009] Optionally, bolt holes are provided on both sides of the fixing portion, connecting bolts are provided through the bolt holes, and the connecting bolts are threadedly connected to the housing module so that the fixing portion is pressed against the outer side of the first sealing ring.

[0010] Optionally, a locking mechanism is provided at a position of the fixing portion corresponding to the supporting portion, a locking groove is provided at a position of the housing module corresponding to the locking mechanism, and the locking mechanism and the locking groove are snap-fitted together; an unlocking mechanism is provided at the supporting portion, one end of the unlocking mechanism is connected to the locking mechanism, one end of the unlocking mechanism is connected to the elastic snap-fit ​​portion, and when the elastic snap-fit ​​portion reaches a predetermined deformation amount, the locking mechanism is driven to exit the locking groove through the unlocking mechanism.

[0011] Optionally, the locking mechanism includes a locking pin and a locking spring, a first condensation groove is provided at a position of the fixed portion corresponding to the supporting portion, the locking pin is slidably arranged in the first condensation groove, and the locking spring is connected between the locking pin and the first condensation groove, so that the locking pin always has a tendency to slide out of the first condensation groove; the unlocking mechanism includes an unlocking pin and an unlocking link, the supporting portion is provided with a second condensation groove, the unlocking pin is slidably arranged in the second condensation groove, the unlocking link is connected between the unlocking pin and the locking pin, and when the unlocking pin slides and shrinks in the second condensation groove, the locking pin is driven to slide and shrink in the first condensation groove through the unlocking link; the cross-section of the bottom of the stepped groove and the cross-section of the first sealing ring are both set to a circular arc structure, and when the second sealing ring is pressed against the window mechanism, the first sealing ring is driven to press against the fixed portion through the window mechanism.

[0012] Optionally, the elastic clamping portion includes a hand-breaking unit and a clamping unit, the hand-breaking unit is integrally formed and arranged on the outside of the support portion, the unlocking pin is located at a corresponding position in the middle of the hand-breaking unit, the clamping unit is integrally formed and arranged on the side of the hand-breaking unit away from the unlocking pin, and the clamping unit and the clamping groove are clamped.

[0013] Optionally, the locking spring is configured as a compression spring structure, and when the locking pin is engaged with the locking groove, the locking spring is in a naturally straightened state; and the contact surfaces of the locking pin and the locking groove are both provided with anti-slip lines.

[0014] Optionally, the unlocking link includes a first link and a second link arranged in sequence from top to bottom, the middle parts of the first link and the middle parts of the second link are hinged to the support part through a preset hinge axis, the top end of the first link is provided with a first waist-shaped groove, the unlocking pin is fixedly provided with a first sliding column slidably matched with the first waist-shaped groove, the bottom end of the first link is provided with a second waist-shaped groove, the top end of the second link is fixedly provided with a second sliding column slidably matched with the second waist-shaped groove, the bottom end of the second link is provided with a third waist-shaped groove, and the locking pin is fixedly provided with a third sliding column slidably matched with the third waist-shaped groove; wherein the spacing between the hinge axis of the first link and the first waist-shaped groove is smaller than the spacing between the hinge axis of the first link and the second waist-shaped groove.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: When the inner surface of the window mechanism needs to be cleaned or the laser module needs to be repaired and adjusted, the elastic clamping part can be manually pried open to release the clamping and locking relationship between the elastic clamping part and the clamping groove, thereby disassembling the movable mechanism as a whole to expose the inner surface of the window mechanism and the laser module. The inner surface of the window mechanism can be cleaned or the laser module can be repaired and adjusted without the aid of a screwdriver. This process is convenient and quick and avoids the situation where the bolt connection fails due to thread slippage after multiple disassembly and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of Example 1 of the present application.

[0017] Figure 2 It is an exploded view of the overall structure of Example 1 of the present application.

[0018] Figure 3 It is an exploded diagram of the window module in the first embodiment of the present application.

[0019] Figure 4 It is a top view of the overall structure of Example 1 of the present application.

[0020] Figure 5 yes Figure 4 Sectional view along AA direction.

[0021] Figure 6 It is a cross-sectional view of the window module in the first embodiment of the present application.

[0022] Figure 7 It is a cross-sectional view of the window module in the second embodiment of the present application.

[0023] Figure 8 It is a cross-sectional view of the locking mechanism and the unlocking mechanism in the second embodiment of the present application.

[0024] Description of reference numerals: 1. housing module; 2. movement module; 3. laser module; 4. window module; 41. window mechanism; 42. fixing mechanism; 421. fixing portion; 422. supporting portion; 423. limiting portion; 424. elastic clamping portion; 4241. hand-breaking unit; 4242. clamping unit; 43. movable mechanism; 430. clamping groove; 431. top cover plate; 432. protective layer; 433. second sealing ring; 5. step groove; 51. first sealing ring; 6 , bolt hole; 61, connecting bolt; 7, locking mechanism; 70, locking groove; 71, locking pin; 72, locking spring; 73, first condensation groove; 8, unlocking mechanism; 81, unlocking pin; 82, unlocking connecting rod; 821, first connecting rod; 822, second connecting rod; 83, second condensation groove; 84, hinge axis; 91, first waist-shaped groove; 911, first sliding column; 92, second waist-shaped groove; 921, second sliding column; 93, third waist-shaped groove; 931, third sliding column. DETAILED DESCRIPTION

[0025] The following is combined with Figures 1 to 8 This application is described in further detail.

[0026] The application discloses a projection instrument with a detachable window.

[0027] Embodiment 1: Reference Figure 1-6 The projection instrument with a detachable window includes a shell module 1, a movement module 2, a laser module 3 and a window module 4, wherein the movement module 2 is fixedly arranged inside the shell module 1, the laser module 3 is fixedly arranged on the movement module 2 and exposed outside the shell module 1, so that the laser module 3 can be used to emit a laser beam to the outside, thereby forming a reference line based on the sighting axis, and the window module 4 is fixedly arranged outside the shell module 1 and surrounds the laser module 3. The window module 4 covers and protects the movement module 2 and the laser module 3, and is also used for allowing the laser beam to penetrate and reach the outside; in the above, the specific structures and implementation principles of the shell module 1, the movement module 2 and the laser module 3 are disclosed in the prior art and will not be repeated here.

[0028] In this embodiment, the window module 4 specifically includes a window mechanism 41, a fixing mechanism 42 and a movable mechanism 43; wherein, the window mechanism 41 is movably arranged outside the shell module 1, and the window mechanism 41 surrounds the laser module 3, so as to cover and protect the laser module 3 and allow the laser beam to penetrate to the outside; the fixing mechanism 42 is fixedly arranged outside the shell module 1, and the fixing mechanism 42 is sleeved on the outside of the window mechanism 41, and the fixing mechanism 42 is hollowed out, so as to allow the laser beam to penetrate to the outside and to limit the window mechanism 41 from being separated from the shell module 1; the movable mechanism 43 is a cover plate structure, and the movable mechanism 43 is detachably clamped to the side of the fixing mechanism 42 away from the shell module 1, and the movable mechanism 43 is pressed against one side of the window mechanism 41, so as to push the other side of the window mechanism 41 against the outside of the shell module 1, and at this time, the shell module 1, the window mechanism 41 and the movable mechanism 43 together constitute a closed structure surrounding the laser module 3.

[0029] In the above, the window mechanism 41 adopts a cylindrical glass structure with openings at both ends, specifically a tetrahedral cylindrical glass structure, and of course a pentagonal cylindrical glass structure / a truncated cylindrical plastic structure, etc. can also be adopted. The fixing mechanism 42 specifically includes a fixing portion 421, a supporting portion 422, a limiting portion 423 and an elastic clamping portion 424, and the movable mechanism 43 specifically includes a top cover plate 431, a protective layer 432 and a second sealing ring 433; wherein, the housing module 1 is provided with an annular stepped groove 5 at a position corresponding to the laser module 3, and the bottom of the stepped groove 5 is embedded in the housing module 1. A first sealing ring 51 is movably provided, the bottom of the window mechanism 41 is pressed against the inner side of the first sealing ring 51, and the bottom contour of the window mechanism 41 is larger than the top contour; after the window mechanism 41 is pressed against the inner side of the first sealing ring 51, the fixing part 421 needs to be installed, and the fixing part 421 is fixedly provided at the top of the stepped groove 5 by embedding, and the fixing part 421 is pressed against the outer side of the first sealing ring 51, so as to press and limit the first sealing ring 51, so as to limit the first sealing ring 51 from leaving the stepped groove 5 of the housing module 1, and the supporting part 422 is configured There are four groups, and the bottoms of the four groups of support parts 422 are integrally formed and arranged at the four corners of the fixed part 421, and the support parts 422 are in contact with the movable mechanism 43, so as to form a hollow-out fixed mechanism 42, which is used to support the window mechanism 41 to have light transmission conditions. The limiting parts 423 are configured with four groups corresponding to the support parts 422, and the four groups of limiting parts 423 are integrally formed and arranged on the inner sides of the tops of the four groups of support parts 422, and the four groups of limiting parts 423 are all in contact with the outer periphery of the top of the window mechanism 41, that is, the limiting parts 423 are sleeved on the top of the window mechanism 41. The outer periphery of the part is used to limit the window mechanism 41 from being separated from the housing module 1. Four groups of elastic clamping parts 424 are configured corresponding to the limiting parts 423. The four groups of elastic clamping parts 424 are respectively integrally formed and arranged on the outer sides of the tops of the four groups of support parts 422; the top cover plate 431 of the movable mechanism 43 is provided with a clamping groove 430 that is clamped and matched with the elastic clamping part 424, and when the elastic clamping part 424 and the clamping groove 430 are clamped and locked, the elastic clamping part 424 extends and is exposed on the top cover plate 431 of the movable mechanism 43, so as to realize the unlocking step of the top cover plate 431;The top cover plate 431 is provided with a connection hole corresponding to the top position of the window mechanism 41. The protective layer 432 and the second sealing ring 433 are both rubber structures. The protective layer 432 is fixedly arranged on the top of the top cover plate 431, and the second sealing ring 433 is fixedly arranged on the bottom of the top cover plate 431. The protective layer 432 and the second sealing ring 433 are connected through the connection hole to achieve one-piece molding. The design selects a window mechanism 41 of a suitable height, so that when the elastic clamping portion 424 and the clamping groove 430 are clamped and locked, the top of the window mechanism 41 is tightly pressed against the second sealing ring 433 of the movable mechanism 43, and the second sealing ring 433 of the movable mechanism 43 pushes the bottom of the window mechanism 41 to be tightly pressed against the first sealing ring 51 outside the shell module 1, and finally the shell module 1, the window mechanism 41, and the movable mechanism 43 together constitute a closed structure surrounding the laser module 3. ;

[0030] In the above, the fixing portion 421 is fixedly arranged at the top of the step groove 5 in such a manner that bolt holes 6 are arranged on both sides of the fixing portion 421, and connecting bolts 61 are arranged through the bolt holes 6, and the connecting bolts 61 are threadedly connected to the shell module 1, so that the fixing portion 421 is fixedly arranged at the top of the step groove 5 and pressed against the outer side of the first sealing ring 51, and at the same time, the first sealing ring 51 and the window mechanism 41 are limited to limit the movement of the first sealing ring 51 and the window mechanism 41 from leaving the step groove 5 of the shell module 1.

[0031] In this embodiment, three groups of window modules 4 are configured, and the three groups of window modules 4 are respectively arranged on the adjacent two sides and the top of the outer periphery of the housing module 1, wherein the angle between the plane formed by any two groups of window modules 4 close to each other and the horizontal plane is 45 degrees. During use, by flipping the line projection instrument as a whole and placing two groups of window modules 4 on the ground at the same time, a 45-degree laser projection line can be emitted.

[0032] Implementation principle of embodiment 1: During the installation process, S1, the first sealing ring 51 is embedded in the bottom of the step groove 5; S2, the bottom of the window mechanism 41 is attached to the inner side of the first sealing ring 51; S3, the fixing mechanism 42 is entirely sleeved on the outside of the window mechanism 41, and the fixing part 421 of the fixing mechanism 42 is embedded in the top of the step groove 5 and locked by the connecting bolt 61; S4, the movable mechanism 43 is entirely sealed on the top of the fixing mechanism 42, and the elastic clamping part 424 of the fixing mechanism 42 and the clamping groove 430 of the movable mechanism 43 are clamped and locked, so that the second sealing ring 433 and the first sealing ring 51 are respectively pressed against the top and bottom of the window mechanism 41; finally, the housing module 1, the window mechanism 41, and the movable mechanism 43 jointly constitute a closed structure surrounding the laser module 3. During use, the laser beam penetrates the window mechanism 41 and the hollow-out fixing mechanism 42 to reach the outside, realizing laser projection. When the inner surface of the window mechanism 41 needs to be cleaned or the laser module 3 needs to be repaired and adjusted, the elastic clamping portion 424 can be manually pried open to release the clamping and locking relationship between the elastic clamping portion 424 and the clamping groove 430, thereby disassembling the movable mechanism 43 as a whole to expose the inner surface of the window mechanism 41 and the laser module 3. The inner surface of the window mechanism 41 can be cleaned or the laser module 3 can be repaired and adjusted without the aid of a screwdriver. This process is convenient and quick and avoids the situation where the bolt connection fails due to thread slippage after multiple disassembly and installation.

[0033] Embodiment 2: Reference Figure 7-8 The difference between this embodiment and the first embodiment lies in the way the fixing portion 421 is fixed to the top of the stepped groove 5. The first embodiment is locked by a connecting bolt 61, and the fixing portion 421 is disassembled with the help of a screwdriver tool when necessary. The second embodiment is locked by a locking mechanism 7, and the fixing portion 421 is directly disassembled manually when necessary without the help of a screwdriver tool.

[0034] In this embodiment, a locking mechanism 7 is provided at a position of the fixing portion 421 corresponding to the supporting portion 422, and a locking groove 70 is provided at a position of the housing module 1 corresponding to the locking mechanism 7, and the locking mechanism 7 and the locking groove 70 are snap-fitted and adapted to each other, and the fixed installation of the fixing portion 421 is achieved by snapping the locking mechanism 7 and the locking groove 70 together; an unlocking mechanism 8 is provided at the supporting portion 422, one end of the unlocking mechanism 8 is connected to the locking mechanism 7, and one end of the unlocking mechanism 8 is connected to the elastic snap-fitting portion 424, and when the elastic snap-fitting portion 424 reaches a predetermined deformation amount, the elastic snap-fitting portion 424 drives the locking mechanism 7 to exit the locking groove 70 through the unlocking mechanism 8, so as to release the snap-fitting relationship between the locking mechanism 7 and the locking groove 70, thereby achieving the effect of directly disassembling the fixing portion 421 manually without the aid of a screwdriver tool.

[0035] In the above, the locking mechanism 7 specifically includes a locking pin 71 and a locking spring 72; wherein, the fixed portion 421 is provided with a horizontally arranged first condensation groove 73 corresponding to the position of the four groups of support portions 422, so the locking mechanism 7 is correspondingly configured with four groups, and one of them is explained, the locking pin 71 is slidably set in the first condensation groove 73, the locking spring 72 adopts a compression spring, the locking spring 72 is connected between the locking pin 71 and the bottom of the first condensation groove 73, so that the locking pin 71 away from the locking spring 72 one end always has a tendency to slide and be exposed in the first condensation groove 73, and the locking pin 71 away from the locking spring 72 One end is set as a fan-shaped structure for easy locking, and the corresponding configuration of the locking groove 70 is a fan-shaped structure for easy locking.

[0036] In the above, the unlocking mechanism 8 specifically includes an unlocking pin 81 and an unlocking connecting rod 82; wherein, the four groups of support parts 422 are all provided with a horizontally arranged second condensation groove 83, the second condensation groove 83 is located at a corresponding position in the middle of the elastic clamping part 424, and the unlocking pin 81 is slidably arranged in the second condensation groove 83; a connecting rod groove 90 connecting the first condensation groove 73 and the second condensation groove 83 is also provided inside the support part 422, and the unlocking connecting rod 82 is located inside the connecting rod groove 90, and the unlocking connecting rod 82 is connected between the unlocking pin 81 and the locking pin 71, and when the unlocking pin 81 slides and shrinks in the second condensation groove 83, the unlocking pin 81 drives the locking pin 71 to slide and shrink in the first condensation groove 73 through the unlocking connecting rod 82, so as to release the clamping relationship between the locking mechanism 7 and the locking groove 70.

[0037] In addition, the bottom cross section of the stepped groove 5 and the cross section of the first sealing ring 51 are both configured as arc-shaped structures, and when the second sealing ring 433 is pressed against the window mechanism 41 , the second sealing ring 433 drives the first sealing ring 51 to be pressed against the fixing portion 421 through the window mechanism 41 .

[0038] During the installation process, S1, the first sealing ring 51 is embedded in the bottom of the stepped groove 5; S2, the bottom of the window mechanism 41 is attached to the inner side of the first sealing ring 51; S3, the fixing mechanism 42 is integrally sleeved on the outside of the window mechanism 41, and during the process of the fixing portion 421 of the fixing mechanism 42 being embedded in the stepped groove 5, the locking pin 71 is first compressed and slid into the first condensation groove 73 away from the locking spring 72, and the locking pin 71 then slides out of the first condensation groove 73 under the elastic force of the locking spring 72, and the locking pin 71 is snapped into the locking groove 70, so that the locking mechanism 7 is installed. Install and fix; S4, the movable mechanism 43 is integrally covered on the top of the fixed mechanism 42, and the elastic clamping portion 424 of the fixed mechanism 42 and the clamping groove 430 of the movable mechanism 43 are clamped and locked, so that the second sealing ring 433 and the first sealing ring 51 are respectively pressed against the top and bottom of the window mechanism 41, and the first sealing ring 51 with an arc-shaped structure is deformed and slightly displaced during the process of being pushed by the window mechanism 41, so that the end of the first sealing ring 51 away from the window mechanism 41 is pressed against the fixed portion 421, thereby improving the installation sealing between the shell module 1 and the fixed mechanism 42. During the disassembly process, the elastic clamping part 424 is manually pried to reach the first deformation amount X to release the clamping and locking relationship between the elastic clamping part 424 and the clamping groove 430, thereby disassembling the movable mechanism 43 as a whole, and continuing to manually pry the elastic clamping part 424 to reach the second deformation amount 2X. In the process of continuing to pry the elastic clamping part 424, the elastic clamping part 424 pushes the unlocking pin 81 to slide and shrink in the second contraction groove 83. The unlocking pin 81 drives the locking pin 71 to slide and shrink inside the first contraction groove 73 through the unlocking link 82 to release the clamping relationship between the locking mechanism 7 and the locking groove 70, thereby disassembling the fixing mechanism 42 as a whole, so as to facilitate the maintenance / aging replacement of structures such as the window mechanism 41, the fixing mechanism 42, and the first sealing ring 51.

[0039] In this embodiment, the elastic clamping portion 424 includes a hand-breaking unit 4241 and a clamping unit 4242; wherein the hand-breaking unit 4241 is integrally formed and arranged on the outside of the support portion 422, the unlocking pin 81 is located at a corresponding position in the middle of the hand-breaking unit 4241, the clamping unit 4242 is integrally formed and arranged on the side of the hand-breaking unit 4241 away from the unlocking pin 81, and the clamping unit 4242 and the clamping groove 430 are clamped and adapted; the clamping unit 4242 is in the hand-breaking unit A convex structure is formed on the outer side of the element 4241. As the top cover plate 431 covers the support portion 422 from top to bottom, the hand-breaking unit 4241 and the clamping unit 4242 are first forced to deform inwards, and when the clamping unit 4242 is relatively aligned with the clamping groove 430, the hand-breaking unit 4241 and the clamping unit 4242 are ejected outwards, so that the clamping unit 4242 and the clamping groove 430 are clamped, and the movable mechanism 43 is completely covered on the top of the fixed mechanism 42. The hand-breaking unit 4241 can protect and hide the unlocking pin 81, so that the protection unlocking pin 81 is not easy to be accidentally touched.

[0040] In this embodiment, when the locking spring 72 of the compression spring structure is connected to the locking groove 70, the locking spring 72 is in a naturally straightened state, and the contact surfaces of the locking pin 71 and the locking groove 70 are both provided with anti-skid lines. During the installation and fixing process of the locking mechanism 7, the locking pin 71 is connected to the locking groove 70, and by setting the length of the locking spring 72, the locking spring 72 is just in a naturally straightened state when connected to the locking groove 70, so that the locking spring 72 is not easy to deform due to long-term compression, thereby improving the service life of the locking spring 72; at the same time, the contact surfaces of the locking pin 71 and the locking groove 70 are both provided with anti-skid lines, which can improve the stability of the locking connection and locking between the locking pin 71 and the locking groove 70, and it is not easy to cause the locking pin 71 and the locking groove 70 to be unable to be clamped due to insufficient elasticity of the locking spring 72.

[0041] In this embodiment, the unlocking link 82 includes a first link 821 and a second link 822 arranged in sequence from top to bottom; wherein, the middle portion of the first link 821 and the middle portion of the second link 822 are hingedly arranged on the support portion 422 through a preset hinge shaft 84, a first waist-shaped groove 91 is arranged at the top of the first link 821, the unlocking pin 81 is fixedly provided with a first sliding column 911 slidably matched with the first waist-shaped groove 91, a second waist-shaped groove 92 is arranged at the bottom end of the first link 821, a second sliding column 921 is fixedly provided at the top of the second link 822 slidably matched with the second waist-shaped groove 92, a third waist-shaped groove 93 is arranged at the bottom end of the second link 822, and a third sliding column 931 is fixedly provided with the third waist-shaped groove 93; wherein, the spacing between the hinge shaft 84 of the first link 821 and the first waist-shaped groove 91 is smaller than the spacing between the hinge shaft 84 of the first link 821 and the second waist-shaped groove 92. The first connecting rod 821 is equivalent to a trigger member, and the second connecting rod 822 is equivalent to a reversing member. By setting the waist-shaped grooves at both ends of the first connecting rod 821 and the different lengths of the hinge point, the first connecting rod 821 is equivalent to forming a pry bar structure, that is, it can amplify the movement. For example, the movement amount of the unlocking pin 81 is 1X, and the corresponding movement amount of the locking pin 71 is amplified to 2X, so as to meet the requirement of driving the larger deformation of the locking mechanism 7 through the small deformation of the elastic clamping part 424. At the same time, the movement resistance of the unlocking pin 81 is correspondingly increased, and the unlocking caused by accidentally touching the elastic clamping part 424 is avoided as much as possible by increasing the resistance.

[0042] The implementation principle of the second embodiment: During the installation process, S1, the first sealing ring 51 is embedded in the bottom of the stepped groove 5; S2, the bottom of the window mechanism 41 is attached to the inner side of the first sealing ring 51; S3, the fixing mechanism 42 is integrally sleeved on the outside of the window mechanism 41, and during the process of the fixing portion 421 of the fixing mechanism 42 being embedded in the stepped groove 5, the locking pin 71 is first compressed and slid into the first condensation groove 73 away from the locking spring 72, and the locking pin 71 then slides out of the first condensation groove 73 under the elastic force of the locking spring 72, and the locking pin 71 is snapped into the locking groove 70, so that the locking mechanism 7 is installed. Install and fix; S4, the movable mechanism 43 is integrally covered on the top of the fixed mechanism 42, and the elastic clamping portion 424 of the fixed mechanism 42 and the clamping groove 430 of the movable mechanism 43 are clamped and locked, so that the second sealing ring 433 and the first sealing ring 51 are respectively pressed against the top and bottom of the window mechanism 41, and the first sealing ring 51 with an arc-shaped structure is deformed and slightly displaced during the process of being pushed by the window mechanism 41, so that the end of the first sealing ring 51 away from the window mechanism 41 is pressed against the fixed portion 421, thereby improving the installation sealing between the shell module 1 and the fixed mechanism 42. During the disassembly process, the elastic clamping part 424 is manually pried to reach the first deformation amount X to release the clamping and locking relationship between the elastic clamping part 424 and the clamping groove 430, thereby disassembling the movable mechanism 43 as a whole, and continuing to manually pry the elastic clamping part 424 to reach the second deformation amount 2X. In the process of continuing to pry the elastic clamping part 424, the elastic clamping part 424 pushes the unlocking pin 81 to slide and shrink in the second contraction groove 83. The unlocking pin 81 drives the locking pin 71 to slide and shrink inside the first contraction groove 73 through the unlocking link 82 to release the clamping relationship between the locking mechanism 7 and the locking groove 70, thereby disassembling the fixing mechanism 42 as a whole, so as to facilitate the maintenance / aging replacement of structures such as the window mechanism 41, the fixing mechanism 42, and the first sealing ring 51.

[0043] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A projection instrument with a detachable window, characterized in that: It comprises a housing module (1); A movement module (2), the movement module (2) is fixedly arranged inside the housing module (1); A laser module (3), the laser module (3) is fixedly arranged on the core module (2) and exposed outside the housing module (1), and the laser module (3) is used to emit a laser beam; A window module (4), the window module (4) is fixedly arranged outside the housing module (1) and surrounds the laser module (3), and the window module (4) is used for allowing the laser beam to penetrate; The window module (4) comprises a window mechanism (41), a fixing mechanism (42) and a movable mechanism (43), wherein the window mechanism (41) is movably arranged outside the housing module (1), and the window mechanism (41) surrounds the laser module (3); the fixing mechanism (42) is fixedly arranged outside the housing module (1), and the fixing mechanism (42) is sleeved outside the window mechanism (41) to limit the window mechanism (41) from being separated from the housing module (1); the movable mechanism (43) is detachably connected to a side of the fixing mechanism (42) away from the housing module (1), and the movable mechanism (43) is pressed against one side of the window mechanism (41) to push the other side of the window mechanism (41) against the outside of the housing module (1).

2. A projection device with a detachable window according to claim 1, characterized in that: The window modules (4) are configured in three groups, and the three groups of window modules (4) are respectively arranged on two adjacent sides and the top of the outer periphery of the housing module (1), wherein the angle between the plane formed by the side close to each other of any two groups of window modules (4) and the horizontal plane is 45 degrees.

3. A projection device with a detachable window according to claim 2, characterized in that: The housing module (1) is provided with a stepped groove (5), a first sealing ring (51) is movably provided at the bottom of the stepped groove (5), and the window mechanism (41) is pressed against the inner side of the first sealing ring (51); the fixing mechanism (42) comprises a fixing portion (421), a supporting portion (422), a limiting portion (423) and an elastic clamping portion (424), the fixing portion (421) is provided at the top of the stepped groove (5), and the fixing portion (421) is pressed against the first sealing ring (51). The outer side of the sealing ring (51) is used to limit the first sealing ring (51) from being separated from the housing module (1); the supporting portion (422) is arranged on the fixing portion (421), and the supporting portion (422) is in contact with the movable mechanism (43) to support the window mechanism (41) to have light transmission conditions; the limiting portion (423) is arranged on the inner side of the supporting portion (422), and the limiting portion (423) is sleeved on the window mechanism (41) to limit the window mechanism (41) 1) detaching from the housing module (1), the elastic clamping portion (424) is arranged outside the supporting portion (422), the movable mechanism (43) is provided with a clamping groove (430) that is clamped and matched with the elastic clamping portion (424), and when the elastic clamping portion (424) and the clamping groove (430) are clamped and locked, the elastic clamping portion (424) extends and is exposed outside the movable mechanism (43); the movable mechanism (43) includes a top cover plate (431), a protective layer (432) and a second sealing ring (433), the top cover plate (431) is provided with a connecting hole, the protective layer (432) is fixedly arranged on the top of the top cover plate (431), the second sealing ring (433) is fixedly arranged on the bottom of the top cover plate (431), and the protective layer (432) and the second sealing ring (433) are connected through the connecting hole, and the side of the window mechanism (41) away from the first sealing ring (51) is pressed against the second sealing ring (433).

4. A projection device with a detachable window according to claim 3, characterized in that: Bolt holes (6) are provided on both sides of the fixing portion (421), and connecting bolts (61) are provided through the bolt holes (6). The connecting bolts (61) are threadedly connected to the housing module (1) so that the fixing portion (421) is pressed against the outside of the first sealing ring (51).

5. The projection device with a detachable window according to claim 3, characterized in that: The fixing portion (421) is provided with a locking mechanism (7) at a position corresponding to the supporting portion (422); the housing module (1) is provided with a locking groove (70) at a position corresponding to the locking mechanism (7); and the locking mechanism (7) and the locking groove (70) are snap-fitted with each other; the supporting portion (422) is provided with an unlocking mechanism (8); one end of the unlocking mechanism (8) is connected to the locking mechanism (7); one end of the unlocking mechanism (8) is connected to the elastic snap-fitting portion (424); and when the elastic snap-fitting portion (424) reaches a predetermined deformation amount, the locking mechanism (7) is driven to exit the locking groove (70) through the unlocking mechanism (8).

6. The projection device with a detachable window according to claim 5, characterized in that: The locking mechanism (7) comprises a locking pin (71) and a locking spring (72); the fixing portion (421) is provided with a first condensation groove (73) at a position corresponding to the supporting portion (422); the locking pin (71) is slidably arranged in the first condensation groove (73); the locking spring (72) is connected between the locking pin (71) and the first condensation groove (73) so that the locking pin (71) always has a tendency to slide and be exposed in the first condensation groove (73); the unlocking mechanism (8) comprises an unlocking pin (81) and an unlocking connecting rod (82); the supporting portion (422) is provided with a second condensation groove (83); The unlocking pin (81) is slidably arranged in the second condensation groove (83), the unlocking connecting rod (82) is connected between the unlocking pin (81) and the locking pin (71), and when the unlocking pin (81) slides and shrinks in the second condensation groove (83), the locking pin (71) is driven to slide and shrink in the first condensation groove (73) through the unlocking connecting rod (82); the bottom cross section of the stepped groove (5) and the cross section of the first sealing ring (51) are both arranged as arc structures, and when the second sealing ring (433) is pressed against the window mechanism (41), the first sealing ring (51) is driven to press against the fixing part (421) through the window mechanism (41).

7. The projection device with a detachable window according to claim 6, characterized in that: The elastic clamping portion (424) comprises a hand-breaking unit (4241) and a clamping unit (4242); the hand-breaking unit (4241) is integrally formed and arranged on the outside of the support portion (422); the unlocking pin (81) is located at a corresponding position in the middle of the hand-breaking unit (4241); the clamping unit (4242) is integrally formed and arranged on a side of the hand-breaking unit (4241) away from the unlocking pin (81); and the clamping unit (4242) and the clamping groove (430) are clamped together.

8. The projection device with a detachable window according to claim 7, characterized in that: The locking spring (72) is configured as a compression spring structure, and when the locking pin (71) is clamped in the locking groove (70), the locking spring (72) is in a naturally straightened state; and the contact surfaces of the locking pin (71) and the locking groove (70) are both provided with anti-slip lines.

9. The projection device with a detachable window according to claim 8, characterized in that: The unlocking link (82) comprises a first link (821) and a second link (822) which are arranged in sequence from top to bottom. The middle portion of the first link (821) and the middle portion of the second link (822) are hingedly arranged on the support portion (422) via a preset hinge shaft (84). The top end of the first link (821) is provided with a first waist-shaped groove (91). The unlocking pin is fixedly provided with a first sliding column (911) which is slidably matched with the first waist-shaped groove (91). The bottom end of the first link (821) is provided with a second waist-shaped groove (91). 2), a second sliding column (921) is fixedly provided at the top end of the second connecting rod (822) and is slidably matched with the second waist-shaped groove (92), a third waist-shaped groove (93) is provided at the bottom end of the second connecting rod (822), and a third sliding column (931) is fixedly provided on the locking pin (71) and is slidably matched with the third waist-shaped groove (93); wherein, the distance between the hinge axis (84) of the first connecting rod (821) and the first waist-shaped groove (91) is smaller than the distance between the hinge axis (84) of the first connecting rod (821) and the second waist-shaped groove (92).

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