Line casting device

Abstract

The utility model discloses a demarcation device. The demarcation device comprises a pendulum body, a laser module and a fastener, the pendulum body and the laser module are matched to form an installation space, the fastening piece is assembled in the installation space, and the fastening piece and the installation space are matched to lock the relative position of the pendulum body and the laser module; an avoiding space communicated with the installation space is further formed in the swing body and / or the laser module, and the avoiding space is arranged to expose the part of the fastener. In the demarcation device, the mounting space and the avoiding space which are arranged through the cooperation of the pendulum body and the laser module can allow the fastener to be partially exposed. In the assembling, fine adjusting and repairing processes, the avoiding space can provide enough operation space to carry out adhesive dispensing operation on the fastener, so that the technical difficulty of adhesive dispensing operation is reduced, and the assembling and maintaining convenience is improved.

Description

Technical Field

[0001] This application belongs to the field of measuring tool technology, specifically relating to a line projector. Background Technology

[0002] A laser projection device is an instrument that uses laser technology to project horizontal or vertical reference lines onto a target surface. It is widely used in construction, decoration, and installation to ensure accuracy and convenience during construction. The accuracy of the projection device is guaranteed by two factors: firstly, adjusting the positions of the horizontal and vertical laser modules on the pendulum body using adjusting screws ensures the correct relative positions of the modules; secondly, adjusting the position of the pendulum body using counterweight screws ensures that the laser lines emitted by the horizontal and vertical laser modules are perpendicular and parallel to the theoretical center position. During the production and debugging process, to ensure the stability of the projection device's structure, adhesive is applied to the adjusting screws after the horizontal and vertical laser modules have been adjusted.

[0003] In existing technologies, line projectors face limitations in operating space when applying adhesive to fix the adjusting screws due to structural constraints, making the adhesive application process difficult. Furthermore, as line projectors are precision instruments, any deviation in accuracy requires fine-tuning or rework. However, existing products are difficult to remove the adhesive after application, further complicating fine-tuning or rework.

[0004] Therefore, it is necessary to provide a line projector to address the aforementioned technical problems. Utility Model Content

[0005] The purpose of this application is to provide a line projector that can solve the problems of insufficient operating space and difficulty in fine-tuning or rework when fixing the adjusting screw with adhesive in the middle.

[0006] To achieve the above objectives, a specific embodiment of this application provides the following technical solution:

[0007] A line projector includes a pendulum body, a laser module, and fasteners; the pendulum body and the laser module cooperate to form an installation space, the fasteners are assembled in the installation space, and the fasteners cooperate with the installation space to lock the relative positions of the pendulum body and the laser module; the pendulum body and / or the laser module also have a clearance space communicating with the installation space, the clearance space being configured to expose a portion of the fasteners.

[0008] In one or more embodiments of this application, the pendulum body and / or the laser module are provided with a clearance groove communicating with the installation space, the clearance space is located in the clearance groove, and there is a gap between the groove wall of the clearance groove and the fastener assembled in the installation space.

[0009] In one or more embodiments of this application, the clearance groove includes a first channel, the first channel having a first channel cross-sectional opening that exposes a portion of the fastener, wherein the first channel cross-sectional opening is an opening formed by cutting a cross-section of the first channel perpendicular to its extending direction; and / or,

[0010] The clearance groove includes a second channel, which has a second channel cross-sectional opening that exposes a portion of the fastener. The second channel cross-sectional opening is formed by cutting a section of the second channel parallel to its extension direction.

[0011] In one or more embodiments of this application, the laser module is fixed to the outside of the side wall of the pendulum body by the fastener, the installation direction of the fastener is approximately parallel to the light emission direction of the laser module, and the clearance groove exposes a portion of the fastener through the opening of the second channel section; or,

[0012] One end of the laser module is inserted into the swing body, the installation direction of the fastener is approximately perpendicular to the light emission direction of the laser module, and the clearance groove exposes part of the fastener through the opening of the first channel section.

[0013] In one or more embodiments of this application, the pendulum body has a first mounting hole, the laser module has a second mounting hole corresponding to the position of the first mounting hole, the first mounting hole and the second mounting hole cooperate to form the mounting space, and the fastener is inserted into the first mounting hole and the second mounting hole; the clearance space is configured to expose the portion of the fastener located in the first mounting hole and / or the second mounting hole.

[0014] In one or more embodiments of this application, the fastener includes an adjusting screw, and an adhesive layer is provided between the adjusting screw and the wall of the first mounting hole and the second mounting hole, the adhesive layer being formed by penetrating thread-locking adhesive.

[0015] In one or more embodiments of this application, the adjusting screw includes a nut and a stud, the stud having an exposed surface and a non-exposed surface, the area of ​​the exposed surface being smaller than the area of ​​the non-exposed surface.

[0016] In one or more embodiments of this application, the laser projector further includes a housing, the pendulum is oscillatingly mounted inside the housing, and the housing has a first inspection port corresponding to the position of the laser module and the fastener.

[0017] In one or more embodiments of this application, the line projector further includes a counterweight adjustment component installed on the pendulum body, and the housing has a second inspection port corresponding to the position of the counterweight adjustment component.

[0018] In one or more embodiments of this application, the line projector further includes a protective cover installed on the housing, the protective cover covering the first inspection port and the second inspection port.

[0019] Compared with existing technologies, the line projector of this application allows for partial exposure of fasteners by using an installation space and clearance space provided by the combination of the pendulum body and the laser module. During assembly, fine-tuning, and rework, the clearance space provides sufficient operating space for dispensing adhesive to the fasteners, thus reducing the technical difficulty of dispensing operations and improving the convenience of assembly and maintenance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the projector structure in Embodiment 1 of this application;

[0022] Figure 2 This is a schematic diagram of the internal structure of the projector in Embodiment 1 of this application;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a front view of the projector in Embodiment 1 of this application;

[0025] Figure 5 This is a schematic diagram of the internal structure of the projector in Embodiment 2 of this application;

[0026] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0027] Explanation of key figure labels:

[0028] 1. Housing; 11. First inspection port; 12. Second inspection port; 2. Swing body; 21. First assembly hole; 3. Laser module; 31. Second assembly hole; 4. Fastener; 5. Clearance groove; 6. Counterweight adjustment component; 7. Protective cover. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0030] Example 1

[0031] Reference Figure 1 and Figure 2 In one embodiment of this application, the line projector includes a housing 1, a pendulum 2, a laser module 3, and fasteners 4. The pendulum 2 is oscillatingly mounted within the housing 1. The laser module 3 is mounted to the pendulum 2 via the fasteners 4, which adjust the position of the laser module 3 to adjust the accuracy of the line projector. The laser module 3 may include a horizontal laser module and a vertical laser module, used to project horizontal and vertical laser reference lines onto the target surface to facilitate measurement, calibration, and other tasks.

[0032] Reference Figure 2 and Figure 3 The pendulum 2 and the laser module 3 cooperate to form an installation space. The fastener 4 is assembled in the installation space, and the fastener 4 cooperates with the installation space to lock the relative position of the pendulum 2 and the laser module 3. The pendulum 2 and / or the laser module 3 also have a clearance space that communicates with the installation space. The clearance space is set to expose the part of the fastener 4.

[0033] Therefore, while ensuring that the pendulum 2 and laser module 3 are effectively fixed by the fastener 4, the provision of clearance space exposes part of the fastener 4 structure, thus providing sufficient operating space for dispensing. After the adhesive cures, it ensures that the laser module 3 is stably fixed to the pendulum 2, reducing potential positional shifts in the laser module 3 and ensuring the accuracy of the line projector. By exposing part of the fastener 4 through clearance space, the convenience of dispensing operations during initial assembly, subsequent fine-tuning, and rework is improved.

[0034] Reference Figure 2 and Figure 3 The pendulum 2 has a first mounting hole 21, and the laser module 3 has a second mounting hole 31 corresponding to the position of the first mounting hole 21. The first mounting hole 21 and the second mounting hole 31 cooperate to form the above-mentioned installation space. The fastener 4 is inserted into the first mounting hole 21 and the second mounting hole 31. The clearance space is set to expose the part of the fastener 4 located in the first mounting hole 21 and / or the second mounting hole 31.

[0035] Reference Figure 3The pendulum body 2 and / or the laser module 3 are provided with a clearance groove 5 that communicates with the installation space. The clearance space is located within the clearance groove 5, and there is a gap between the groove wall of the clearance groove 5 and the fastener 4 assembled in the installation space. The gap set by the clearance groove 5 can provide a certain operating space for the dispensing head, which facilitates subsequent dispensing to lock the relative positions between the fastener 4, the laser module 3, and the pendulum body 2.

[0036] Reference Figure 3 In this embodiment, the clearance groove 5 includes a second channel, which has a cross-sectional opening exposing the portion of the fastener 4. The cross-sectional opening is formed by cutting a section parallel to the extension direction of the second channel. In this embodiment, the clearance groove 5 mates with the second mounting hole 31, and the clearance groove 5 and the second mounting hole 31 partially overlap. The dispensing head can dispense adhesive onto the fastener 4 through the cross-sectional opening of the second channel. In this embodiment, the cross-sectional opening of the second channel is as follows... Figure 3 The rectangular cross-section opening is shown. The second assembly hole 31 can be directly connected to the outside through the second channel cross-section opening, thereby facilitating the dispensing operation.

[0037] In other embodiments, the clearance groove 5 may also be configured to cooperate with the first mounting hole 21; alternatively, the clearance groove 5 may be configured to cooperate with both the first mounting hole 21 and the second mounting hole 31. It is understood that the position of the clearance groove 5 is sufficient to expose a portion of the fastener 4, through which adhesive dispensing can be performed.

[0038] Reference Figure 2 and Figure 3 In this embodiment, the laser module 3 is fixed to the side wall of the pendulum body 2 by fasteners 4. The installation direction of the fasteners 4 is approximately parallel to the light emission direction of the laser module 3. The clearance groove 5 exposes part of the fasteners 4 through the opening of the second channel section. Therefore, the external dispensing head can dispense adhesive to the fasteners 4 through the opening of the second channel section, and its dispensing direction is perpendicular to the installation direction of the fasteners 4.

[0039] Because the fastener 4 requires fine-tuning to determine the relative position of the laser module 3 and the pendulum 2, there may be a certain deviation between the light emission direction of the laser module 3 and the installation direction of the fastener 4, making absolute parallelism impossible. Therefore, in this embodiment, the installation direction of the fastener 4 is approximately parallel to the light emission direction of the laser module 3.

[0040] Reference Figure 3 In this embodiment, the fastener 4 includes an adjusting screw, and an adhesive layer is provided between the adjusting screw and the hole walls of the first mounting hole 21 and the second mounting hole 31. The adhesive layer is formed by penetrating thread-locking adhesive. The adhesive layer ensures that the laser module 3 is stably fixed to the swing body 2.

[0041] In this embodiment, the adhesive layer uses a penetrating thread-locking adhesive to facilitate the flow of adhesive into the gap between the adjusting screw and the first mounting hole 21 and the second mounting hole 31. The adjusting screw can be removed with a certain amount of external force. If the projector requires fine-tuning or repair, the adjusting screw can be removed again, and adhesive can be replenished to the fastener 4 through the clearance groove 5. Furthermore, because the penetrating thread-locking adhesive can fully penetrate into the gap between the fastener 4 and the first mounting hole 21 and the second mounting hole 31, it can also reduce the amount of adhesive used to some extent.

[0042] Reference Figure 3 The adjusting screw includes a nut and a stud. The stud has an exposed surface and a non-exposed surface, with the area of ​​the exposed surface being smaller than that of the non-exposed surface. The exposed surface is the visible surface of the adjusting screw stud, while the non-exposed surface is the invisible surface. By setting the areas of the exposed and non-exposed surfaces, the contact area between the fastener 4 and the first mounting hole 21 and the second mounting hole 31 can be ensured, thereby ensuring the stability of the fastener 4 in fixing the laser module 3 to the pendulum body 2.

[0043] Reference Figure 4 In one optional embodiment, the housing 1 has a first inspection port 11 corresponding to the positions of the laser module 3 and the fastener 4. The line projector is a precision instrument; if the stress on the adjusting screw is not properly released or it is subjected to impact, it may cause accuracy deviations, thus requiring accuracy correction or rework. In existing products, the housing 1 needs to be removed to adjust the internal laser module 3 and the pendulum 2. The line projector of this application allows adjustment of the laser module 3 and the fastener 4 through the first inspection port 11 without removing the housing 1. Simultaneously, the provision of clearance space facilitates the operator's application of adhesive to the fastener 4, thus improving the convenience of maintenance operations.

[0044] Reference Figure 4 Furthermore, the line projector may also include a counterweight adjustment component 6 installed on the pendulum body 2, and the housing 1 has a second inspection port 12 corresponding to the position of the counterweight adjustment component 6. In this embodiment, the counterweight adjustment component 6 can be set as a counterweight screw. The pendulum body 2 has a corresponding mounting hole, and the counterweight screw is threadedly connected to the mounting hole. By rotating the counterweight screw, its insertion depth into the mounting hole can be adjusted, thereby adjusting the center of gravity of the pendulum body 2 to ensure that the position of the pendulum body 2 meets the requirements. Similarly, the line projector of this application can also adjust the counterweight adjustment component 6 through the second inspection port 12 without removing the housing 1, thus improving the convenience of maintenance operations.

[0045] Understandably, the positions and shapes of the first inspection port 11 and the second inspection port 12 can be set accordingly based on the positions of the laser module 3, the fastener 4, and the counterweight adjustment component 6. The first inspection port 11 may be connected to the second inspection port 12 or may not be connected to the second inspection port 12.

[0046] Reference Figure 1 and Figure 4 In one optional embodiment, the laser projector further includes a protective cover 7 installed on the housing 1, which covers the first inspection port 11 and the second inspection port 12. The protective cover 7 effectively protects the laser module 3 and the pendulum 2 inside the housing 1, preventing them from being affected by external interference and causing a decrease in their accuracy. It is understood that the protective cover 7 can be made transparent to ensure that the laser line emitted by the laser module 3 can pass through the protective cover 7 to form a laser reference line within the target surface.

[0047] Example 2

[0048] Reference Figure 5 and Figure 6 The difference between this embodiment and the previous one is that the clearance groove 5 in this embodiment includes a first channel, and the first channel has a first channel cross-sectional opening that exposes the portion of the fastener 4. The first channel cross-sectional opening is formed by cutting a section perpendicular to the extension direction of the first channel. In this embodiment, the clearance groove 5 is configured to cooperate with the first mounting hole 21, that is, the clearance groove 5 in this embodiment is formed on the swing body 2, and the first mounting hole 21 and the clearance groove 5 do not coincide. The dispensing head can dispense adhesive to the fastener 4 through the first channel cross-sectional opening. The first channel cross-sectional opening in this embodiment is as follows... Figure 6 The semi-circular cross-sectional opening is shown. It is understood that the first channel cross-sectional opening in other embodiments may also be of other shapes.

[0049] In other embodiments, the clearance groove 5 may also be configured to cooperate with the second mounting hole 31; alternatively, the clearance groove 5 may be configured to cooperate with both the first mounting hole 21 and the second mounting hole 31. It is understood that the position of the clearance groove 5 is sufficient to expose a portion of the fastener 4, through which adhesive dispensing can be performed.

[0050] Reference Figure 5 and Figure 6 One end of the laser module 3 is inserted into the swing body 2. The installation direction of the fastener 4 is approximately perpendicular to the light emission direction of the laser module 3. The clearance groove 5 exposes part of the fastener 4 through the opening of the first channel section. The external dispensing head can dispense glue to the fastener 4 through the opening of the first channel section, and its dispensing direction is parallel to the installation direction of the fastener 4.

[0051] Because the fastener 4 requires fine-tuning to determine the relative position of the laser module 3 and the pendulum 2, there may be a certain deviation between the light emission direction of the laser module 3 and the installation direction of the fastener 4, making absolute perpendicularity impossible. Therefore, in this embodiment, the installation direction of the fastener 4 is approximately perpendicular to the light emission direction of the laser module 3. Of course, in other embodiments, the installation direction of the fastener 4 may also have other angles with the light emission direction of the laser module 3.

[0052] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A line projector, characterized in that, The device includes a pendulum (2), a laser module (3), and a fastener (4); the pendulum (2) and the laser module (3) cooperate to form an installation space, the fastener (4) is assembled in the installation space, and the fastener (4) cooperates with the installation space to lock the relative position of the pendulum (2) and the laser module (3); the pendulum (2) and / or the laser module (3) also have a clearance space communicating with the installation space, and the clearance space is set to expose the part of the fastener (4).

2. The line projector according to claim 1, characterized in that, The pendulum (2) and / or the laser module (3) are provided with a clearance groove (5) that communicates with the installation space. The clearance space is located in the clearance groove (5), and there is a gap between the groove wall of the clearance groove (5) and the fastener (4) assembled in the installation space.

3. The line projector according to claim 2, characterized in that, The clearance groove (5) includes a first channel, the first channel having a first channel cross-sectional opening that exposes a portion of the fastener (4), wherein the first channel cross-sectional opening is an opening formed by cutting a cross section perpendicular to the extension direction of the first channel; and / or, The clearance groove (5) includes a second channel, which has a second channel section opening that exposes a portion of the fastener (4). The second channel section opening is an opening formed by cutting a section of the second channel parallel to its extension direction.

4. The line projector according to claim 3, characterized in that, The laser module (3) is fixed to the side wall of the pendulum body (2) by the fastener (4). The installation direction of the fastener (4) is approximately parallel to the light emission direction of the laser module (3). The clearance groove (5) exposes a portion of the fastener (4) through the opening of the second channel section; or, One end of the laser module (3) is inserted into the pendulum body (2), the installation direction of the fastener (4) is approximately perpendicular to the light emission direction of the laser module (3), and the clearance groove (5) exposes part of the fastener (4) through the opening of the first channel section.

5. The line projector according to claim 1, characterized in that, The pendulum (2) has a first mounting hole (21), and the laser module (3) has a second mounting hole (31) corresponding to the position of the first mounting hole (21). The first mounting hole (21) and the second mounting hole (31) cooperate to form the mounting space. The fastener (4) is inserted into the first mounting hole (21) and the second mounting hole (31). The clearance space is set to expose the part of the fastener (4) located in the first mounting hole (21) and / or the second mounting hole (31).

6. The line projector according to claim 5, characterized in that, The fastener (4) includes an adjusting screw, and an adhesive layer is provided between the adjusting screw and the hole wall of the first mounting hole (21) and the second mounting hole (31), the adhesive layer being formed by penetrating thread-locking adhesive.

7. The line projector according to claim 6, characterized in that, The adjusting screw includes a nut and a stud, the stud having an exposed surface and a non-exposed surface, the area of ​​the exposed surface being smaller than the area of ​​the non-exposed surface.

8. The line projector according to claim 1, characterized in that, It also includes a housing (1), the pendulum (2) is oscillatingly installed inside the housing (1), and the housing (1) has a first inspection port (11) corresponding to the position of the laser module (3) and the fastener (4).

9. The line projector according to claim 8, characterized in that, It also includes a counterweight adjustment component (6) installed on the pendulum body (2), and the housing (1) has a second inspection port (12) corresponding to the position of the counterweight adjustment component (6).

10. The line projector according to claim 9, characterized in that, It also includes a protective cover (7) installed on the housing (1), the protective cover (7) covering the first inspection port (11) and the second inspection port (12).

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