Fall-resistant laser level meter

Abstract

The utility model discloses a break-resistant laser level meter, which comprises a casing, a laser head opening arranged on the wall surface of the casing, an anti-collision rubber casing coated outside the casing, a hanging bracket positioned in the casing, a shock-proof pad arranged at the top of the hanging bracket, a buffer rubber column arranged at the bottom of the hanging bracket, and a swinging body suspended in the center of the hanging bracket, according to the laser level meter, the machine shell and the anti-collision rubber shell are combined, the impact resistance of the laser level meter is effectively improved through the combination of the machine shell and the anti-collision rubber shell, and the anti-collision performance of the laser level meter is improved. And through the combined design of the upper and lower anti-vibration pads and the buffer rubber columns of the hanging bracket, an upper and lower anti-vibration structure is formed. By means of the design, impact force from different directions can be effectively absorbed, especially under the falling or impacting condition, direct transmission of impact to the hanging bracket is reduced, loosening or position deviation of the swing body is avoided, and the laser projection precision is kept.

Description

Technical Field

[0001] The utility model relates to the field of laser levels, in particular to a drop-resistant laser level. Background Art

[0002] Laser levels, also known as laser projectors or laser marking instruments, are widely used in construction, interior decoration, surveying, and other fields, emitting laser lines for precise positioning and marking. However, laser levels often operate in harsh environments, especially on construction sites and in outdoor construction. The equipment often needs to be moved and operated frequently, making it susceptible to collisions and impacts, which puts it at greater risk of external damage.

[0003] The core component of any laser level on the market is the movement, which typically consists of a pendulum and a support bracket. The pendulum's primary function is to suspend the laser head, which fires laser beams upward, forward, and sideways, ensuring accurate horizontal and vertical projection. These components are crucial to the laser level's performance but are also very fragile in the event of a drop or collision. In the event of a drop, the pendulum can easily deform or loosen, while the support bracket can break or lose its support due to excessive impact. This can cause the laser head to deflect, affecting the projection angle of the laser beam and directly reducing measurement accuracy. Severe damage can even render the device unusable.

[0004] Furthermore, the laser head, as the core transmitting component, is extremely fragile. Drops or collisions can crack its casing or shift internal optical components, affecting the quality of the laser line. This can cause the laser beam to become blurred, its brightness to diminish, or even the laser head to fail completely. Such damage not only leads to inaccurate measurement results, but in some cases, can render the device completely inoperable.

[0005] Therefore, the laser level's movement and related components are extremely vulnerable to damage when subjected to external impact. Any damage will seriously affect the laser level's measurement accuracy and service life. Therefore, it is crucial to ensure that the laser level is adequately protected during use. Utility Model Content

[0006] The purpose of the utility model is to provide a drop-resistant laser level.

[0007] In order to achieve the above object, the utility model adopts the following scheme: a drop-resistant laser level, comprising:

[0008] The housing has an upper cover on the top and a bottom cover connected to the bottom by snapping, and laser head openings are opened on multiple walls of the housing;

[0009] An anti-collision rubber shell, which is covered on the outside of the casing and is used to absorb external impact;

[0010] A hanger is located in the housing, a pendulum is suspended in the center of the hanger, and a battery box is provided in the housing on one side of the hanger;

[0011] Laser modules, each of which is mounted on the pendulum body, with the laser heads of the laser modules extending from the corresponding laser head openings;

[0012] Protective window covers, which are respectively placed on the corresponding laser head openings to protect the laser head of the laser module from bumps;

[0013] A shock-absorbing pad is provided on the top of the hanger, the top of the shock-absorbing pad is in close contact with the bottom of the upper cover, and is used to absorb impact force from above;

[0014] Buffer rubber columns are respectively arranged at the four corners of the bottom of the hanger for supporting the hanger and absorbing impact force when falling. A fixing seat for installing the corresponding buffer rubber columns is provided on the bottom cover.

[0015] This solution effectively enhances the laser level's impact resistance through the combination of a housing and a crash-resistant rubber shell. The housing design provides basic mechanical protection, while the exterior crash-resistant rubber shell further absorbs external shocks, preventing them from directly impacting the core components. Furthermore, the suspension design of the hanger and pendulum ensures the stability of the laser module in the event of impact, reducing projection accuracy deviations caused by mechanical vibration. The upper and lower shock-absorbing structures of the shock-absorbing pads and cushioning rubber columns effectively handle impacts from different directions, further protecting the laser module's accuracy and stability.

[0016] As a preferred solution of the present invention, the center of the shock-absorbing pad is provided with a through groove, and an extension block extending downward is provided at the outer edge of the bottom of the shock-absorbing pad. The extension block extends downward closely against the outer wall of the hanger, and the bottom of the shock-absorbing pad is symmetrically provided with an insert block extending downward along the inner wall of the through groove. The insert block can be inserted downward into the slot at the top of the hanger. The through groove and extension block structure in the design of the shock-absorbing pad of this solution enable the shock-absorbing pad to not only buffer the impact from above, but also to cling to the outer wall of the hanger through the extension block, effectively dispersing the impact force. The combination of the insert block structure and the slot at the top of the hanger further enhances the fixation of the shock-absorbing pad and prevents it from loosening during impact. This design can absorb impact forces from multiple directions, effectively reduce the risk of damage to internal components, and enhance the overall impact resistance of the equipment.

[0017] As a preferred embodiment of the present invention, the fixing seat includes an upwardly protruding base, a screw column extending upward is provided in the center of the base, a socket for accommodating the corresponding screw column is provided in the center of the bottom of the buffer rubber column, and the bottom of the buffer rubber column abuts against the corresponding top surface of the base. The base and screw column structure in the fixing seat of this solution provides a stable support for the buffer rubber column, so that the buffer rubber column can play a supporting role when responding to impact and will not fall off due to vibration. The screw column on the base cooperates with the buffer rubber column through the socket to ensure that the hanger and the bottom cover can still maintain a tight connection when the equipment vibrates or falls, reducing looseness and further enhancing the stability of the overall structure.

[0018] As a preferred embodiment of the present invention, the bottom surface of the hanger is provided with a fixing hole, into which the top end of the buffering rubber column is inserted with an interference fit, thereby increasing the overall connection strength between the hanger and the buffer system. Thus, when the equipment is subjected to a strong impact, the buffering rubber column can effectively absorb the impact of the fall, preventing the hanger from shifting due to vibration. This structure improves the overall impact resistance and ensures that sensitive components within the equipment are not dislocated or damaged by external impact.

[0019] As a further solution of the present invention, a plurality of inserts are provided at intervals along the circumferential outer wall of the screw column, and a plurality of slots are provided at intervals on the buffer rubber column, extending from the bottom of the buffer rubber column upward to the bottom of the fixing hole. The inserts can be inserted into the corresponding slots when the screw column is inserted into the socket. This solution increases the firmness of the device during earthquake resistance by cooperating with the inserts of the screw column and the slots of the buffer rubber column. This design not only improves the stability of the installation, but also increases multi-directional support for impact resistance. When the device is hit from the side, the cooperation between the inserts and the slots can effectively disperse the impact force and avoid structural damage caused by excessive force in one direction.

[0020] As a preferred embodiment of the present invention, a screw hole A is provided through the center of the fixing hole, which is connected to the socket. A screw is inserted through screw hole A and into the screw post to secure the bottom of the hanger to the bottom cover. This not only improves the stability of the hanger's fixation, but also prevents loosening or separation between the hanger and the bottom cover during vibration or falling. This screw fixing method increases the overall firmness of the device and improves its durability in harsh environments.

[0021] As a preferred solution of the present invention, the protective window cover includes:

[0022] A supporting frame made of metal, with openings on four sides;

[0023] an elastic protective pad, which is made of rubber material and covers the top of the support frame;

[0024] An annular protective pad A and an annular protective pad B are provided inside the support frame, wherein the annular protective pad A is provided at the top of the support frame and is closely connected to the inner side of the top of the support frame, and the annular protective pad B is provided around the inner wall of the bottom of the support frame;

[0025] A glass shield clamped between the annular protective pad A and the annular protective pad B, wherein the four sides of the glass shield correspond to the four openings of the support frame;

[0026] Screw holes B are respectively provided on the bottom edges of the four openings of the support frame, and the screw holes B are used to connect to the housing of the laser level by screwing screws.

[0027] This solution's protective window cover, comprised of a multi-layered structure consisting of a support frame, elastic protective pads, annular protective pads, and a glass cover, comprehensively protects the laser module's laser head from physical damage caused by external impacts. The support frame provides basic support, while the elastic and annular protective pads absorb vibration and impact, further enhancing the device's impact resistance. The glass cover not only protects the laser head but also ensures stable operation during vibrations, shielding it from environmental dust.

[0028] As a preferred embodiment of the present invention, multiple downwardly protruding positioning posts are provided on the bottom surface of the support frame, which can be inserted into positioning holes pre-set in the housing. This design ensures that the protective window cover is not easily displaced or loosened during vibration, thereby increasing the stability of the laser module protection.

[0029] As a preferred embodiment of this invention, a protruding fixing block is provided on the top of the support frame, and an insertion groove is provided on the bottom surface of the elastic protective pad. When the elastic protective pad is attached to the top surface of the support frame, the fixing block is inserted into the insertion groove with an interference fit, preventing the elastic protective pad from shifting when in close contact with the support frame. This tightly connected design improves the shock resistance of the protective pad, ensuring that the laser head remains securely protected from vibrations or impacts.

[0030] As a preferred embodiment of the present invention, an annular groove A is provided around the bottom of the annular protective pad A, and an annular groove B is provided around the top of the annular protective pad B. The top periphery of the glass shield is inserted into annular groove A, and the bottom periphery of the glass shield is inserted into annular groove B. This not only increases the secure fixation of the glass shield, but also ensures that the glass shield will not fall off or shift during vibration. This plug-in design enhances the overall impact resistance of the device and can provide reliable protection against multi-directional impacts.

[0031] In summary, the present invention offers the following advantages over existing technologies: By tightly fastening the top and bottom covers together to form a housing, and then covering the exterior with a crash-resistant rubber shell, this creates a multi-layered protective structure. The crash-resistant rubber shell is made of a flexible material that effectively absorbs external impact forces, preventing damage to the device's delicate components from drops or collisions. The crash-resistant rubber shell acts as a buffer during impacts, protecting the housing from direct impact, thereby further protecting core internal components such as the laser module and pendulum, ensuring stable performance of the laser level.

[0032] The combination of shock-absorbing pads and rubber cushioning columns on the upper and lower parts of the hanger creates a double-layered shock-absorbing structure. This design effectively absorbs impacts from various directions, especially in the event of a drop or impact. This reduces the direct impact transfer to the hanger, preventing the pendulum from loosening or shifting, and maintaining laser projection accuracy. The upper and lower shock-absorbing structure ensures vertical stability of the pendulum, preventing vibration-induced deviation of the laser head, and thus ensuring the laser level's measurement accuracy.

[0033] In addition, the laser module's protective window cover, combined with a metal support frame and elastic protective pads, not only prevents damage to the laser head from external impacts, but also provides an additional layer of protection through the ring-shaped protective pad and glass cover, resisting physical impact and environmental dust and impurities. This multi-layered protection design ensures stable operation of the laser head in harsh environments and effectively extends the service life of the laser level.

[0034] The connection between the mounting bracket and the rubber cushioning posts also enhances overall impact resistance. Screwed to the base, the rubber cushioning posts stabilize the hanger and provide elastic support, preventing the laser level from loosening or misalignment due to drops. The combination of the inserts and the screw posts further strengthens the structural integrity and enhances the laser level's overall seismic performance.

[0035] In summary, this utility model achieves comprehensive protection for the laser level's core components through multiple optimized designs, including an anti-collision rubber shell on the exterior, multi-layered protection with shock-absorbing pads and rubber buffer posts above and below the hanger, and a protective window cover for the laser module. These protective measures complement each other, effectively reducing the impact of drops and shocks on the laser level, significantly improving its durability and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a three-dimensional view of the present invention.

[0037] Figure 2 It is an overall cross-sectional view of the present utility model.

[0038] Figure 3 This is one of the overall exploded views of the present invention.

[0039] Figure 4 This is the second overall exploded view of the present invention.

[0040] Figure 5 for Figure 3 Magnified view of point A in the middle.

[0041] Figure 6 for Figure 3 Magnified view at point B.

[0042] Figure 7 for Figure 4 Magnified view at center C.

[0043] Figure 8 This is one of the cross-sectional views inside the utility model.

[0044] Figure 9 This is the second cross-sectional view of the interior of the utility model.

[0045] Figure 10 This is one of the exploded views of the protective window cover in the present invention.

[0046] Figure 11 This is the second exploded view of the protective window cover in the present invention.

[0047] Explanation of reference numerals: 1. Anti-collision rubber shell; 2. Hanger; 3. Pendulum; 4. Laser module; 5. Protective window cover; 6. Buffer rubber column; 7. Fixing seat; 8. Battery box; 10. Housing; 11. Upper cover; 12. Bottom cover; 13. Laser head opening; 20. Shock-absorbing pad; 21. Through-slot; 22. Extension block; 23. Insert block; 24. Fixing hole; 25. Screw hole A; 26. Upper hanging seat; 27. Lower hanging seat; 28. Column; 29. ​​Slot; 41. Laser head; 51. Support frame; 52. Elastic protective pad; 53. Annular protective pad A; 54. Annular protective pad B; 55. Glass cover; 61. Socket; 62. Slot; 71. Base; 72. Screw column; 73. Insert strip; 511, opening; 512, screw hole B; 513, positioning column; 514, positioning hole; 515, fixing block; 521, embedding groove; 531, annular groove A; 541, annular groove B. DETAILED DESCRIPTION

[0048] The following detailed description provides various embodiments or examples for implementing the present invention. These are, of course, merely examples and are not intended to be limiting. Furthermore, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. Such repetition is for simplicity and clarity in describing the present invention and does not imply a specific relationship between the various embodiments and / or configurations discussed.

[0049] In addition, spatially related terms may be used, such as "below," "lower side," "from the inside out," "above," "upper side," and similar terms. These terms are used to facilitate the description of the relationship between one element or feature and another element or feature in the drawings. These spatially related terms include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be turned to different orientations, rotated 90 degrees or other orientations, and the spatially related adjectives used therein may also be interpreted in the same way. Therefore, they cannot be understood as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0050] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Figures 1 to 11 The illustrated drop-resistant laser level comprises a housing 10 having an upper cover 11 at the top and a bottom connected to a bottom cover 12 by snapping. The exterior of the housing 10 is coated with an anti-collision rubber shell 1 for absorbing external impacts, thereby enhancing the device's impact resistance. Inside the housing 10, a battery compartment 8 is provided. A hanger 2 is installed in the space next to the battery compartment 8. The hanger 2 comprises an upper hanger 26 and a lower hanger 27 spaced apart from each other, and a column 28 connected between the upper hanger 26 and the lower hanger 27. To absorb impacts from above, a shock-absorbing pad 20 is provided between the top of the upper hanger 26 and the bottom of the upper cover 11. The shock-absorbing pad 20 is in close contact with the bottom of the upper cover 11. Buffer rubber columns 6 are provided at the four corners of the bottom of the lower hanger 27 to support the hanger 2 and absorb impact when the laser level falls. The bottom ends of these buffer rubber columns 6 are mounted on corresponding fixing seats 7 on the bottom cover 12, further enhancing the stability of the hanger 2. Suspended in the center of the hanger 2 is a pendulum 3, capable of swinging back and forth and left and right. Mounted to the upper hanger 26 via a cross-axis, the pendulum 3 houses a laser module 4, whose laser head 41 extends out of the laser head opening 13. Each laser head opening 13 is covered with a protective window 5, protecting the laser module 4 from damage. The multi-layered protection of the housing 10's anti-collision rubber shell 1, the hanger 2's shock-absorbing pads 20 and rubber cushioning columns 6, and the laser module 4's protective window 5 effectively protect the laser level's critical internal components from drops or external impacts, ensuring long-term stable operation.

[0051] Among them, such as Figures 1 to 9As shown, in order to avoid loosening when impacted and to enhance the fixation of the shock-absorbing pad, the center of the shock-absorbing pad 20 is provided with a through groove 21, and a downwardly extending extension block 22 is provided at the bottom outer edge of the shock-absorbing pad 20. The extension block 22 extends downward closely against the outer wall of the upper hanger 26, and the bottom of the shock-absorbing pad 20 is symmetrically provided with an insert block 23 extending downward along the inner wall of the through groove 21. The insert block 23 can be inserted downward into the slot 29 at the top of the hanger 2, and the laser head 41 at the top of the pendulum body 3 passes through the slot 29 and the through groove 21 and extends from the corresponding laser head opening 13. The laser heads 41 in other directions pass through between the columns 28 as shown in the figure.

[0052] In this embodiment, to ensure that the buffering rubber column 6 can provide support when impacted and prevent it from detaching from the bottom cover 12 due to vibration, a stable fixing method is adopted, as follows: the fixing base 7 includes an upwardly protruding base 71, with a screw column 72 extending upwardly at its center. A socket 61 is designed at the center of the bottom of the buffering rubber column 6 to accommodate the screw column 72 and facilitate its insertion. Multiple inserts 73 are spaced apart on the circumferential outer wall of the screw column 72, corresponding to the slots 62 spaced apart on the buffering rubber column 6. A fixing hole 24 is then provided at the bottom end of the lower suspension base 27. These slots 62 extend upward from the bottom of the buffering rubber column 6 to a position below the fixing hole 24. A screw hole A25 is provided in the center of the fixing hole 24, which is connected to the socket 61. The top of the screw hole A25 extends through the top surface of the lower suspension base 27, and the top of the buffering rubber column 6 is inserted into the fixing hole 24 through an interference fit. The bottom of the lower hanger 27 is fixed to the fixing base 7 of the bottom cover 12 by inserting a screw through the screw hole A25 and screwing it into the corresponding screw column 72. When the screw column 72 is inserted into the insertion hole 61 of the buffer rubber column 6, the bottom of the buffer rubber column comes into close contact with the top surface of the base 71. At the same time, the insertion strip 73 is inserted into the slot 62 of the buffer rubber column 6, further enhancing the stability of the buffer rubber column 6 and preventing it from falling off or shifting during vibration. This design ensures that the buffer rubber column 6 remains stable even when absorbing impact.

[0053] In addition, if Figures 1 to 5 ,as well as Figure 10 and Figure 11As shown in , in order to fully protect the laser head of the laser module and prevent it from being physically damaged by external impact. The protective window cover 5 includes: a support frame 51 made of metal, the support frame 51 has openings 511 on all four sides, and the top of the support frame 51 is covered with an elastic protective pad 52 made of rubber material. Specifically: a protruding fixed block 515 is provided on the top of the support frame 51, and an embedding groove 521 is provided on the bottom surface of the elastic protective pad 52. When the elastic protective pad 52 covers and fits the top surface of the support frame 51, the fixed block 515 is interference fit into the embedding groove 521. An annular protective pad A53 is provided on the top of the support frame 51, and an annular groove A531 is provided around the bottom of the annular protective pad A53. An annular protective pad B54 is provided around the inner wall of the bottom of the support frame 51, and an annular groove B541 is provided around the top of the annular protective pad B54. A glass shield 55 is sandwiched between the annular protective pad A53 and the annular protective pad B54. The four sides of the glass shield 55 correspond to the four openings 511 of the support frame 51, and the top edge of the glass shield 55 is inserted into the annular groove A531, and the bottom edge of the glass shield 55 is inserted into the annular groove B541.

[0054] To ensure that the protective window cover 5 is not easily displaced or loosened during vibration and to further enhance the stability of the laser module, screw holes B512 are provided at the bottom edges of the four openings 511 on the support frame 51 for screwing into the laser level's housing 10. Multiple downwardly projecting positioning posts 513 are located on the bottom surface of the support frame 51, and these posts 513 can be inserted into positioning holes 514 pre-set in the housing 10. The interaction between the positioning posts 513 and the screws screwed into the screw holes B512 secures the protective window cover 5 to the housing 10, protecting the laser head while ensuring stable operation of the laser level during vibrations and preventing the laser head from being affected by ambient dust.

[0055] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A drop-resistant laser level, characterized in that: include: A housing (10), wherein the top of the housing (10) is provided with an upper cover (11), the bottom of the housing (10) is connected to a bottom cover (12) by snap-fitting, and laser head openings (13) are provided on multiple walls of the housing (10); An anti-collision rubber shell (1), the anti-collision rubber shell (1) is coated on the outside of the housing (10) and is used to absorb external impact; A hanger (2), the hanger (2) being located in the housing (10), a pendulum (3) being suspended in the center of the hanger (2), and a battery box (8) being provided in the housing (10) on one side of the hanger (2); Laser modules (4), the laser modules (4) being respectively mounted on the pendulum bodies (3), and the laser heads of the laser modules (4) extending from the corresponding laser head openings (13); A protective window cover (5), the protective window cover (5) is respectively covered on the corresponding laser head opening (13), and is used to protect the laser head of the laser module (4) from collision; A shock-absorbing pad (20) is provided on the top of the hanger (2), wherein the top of the shock-absorbing pad (20) is in close contact with the bottom of the upper cover (11) and is used to absorb impact force from above; Buffering rubber columns (6) are respectively arranged at the four corners of the bottom of the hanger (2) for supporting the hanger (2) and absorbing impact force when falling. A fixing seat (7) for mounting the corresponding buffering rubber columns (6) is provided on the bottom cover (12).

2. The drop-resistant laser level according to claim 1, characterized in that: The center of the shock-absorbing pad (20) is provided with a through groove (21), and an extension block (22) extending downward is provided at the outer edge of the bottom of the shock-absorbing pad (20). The extension block (22) extends downward closely against the outer wall of the hanger (2). The bottom of the shock-absorbing pad (20) is symmetrically provided with an insert block (23) extending downward along the inner wall of the through groove (21). The insert block (23) can be inserted downward into the slot at the top of the hanger (2).

3. The drop-resistant laser level according to claim 1, characterized in that: The fixing seat (7) includes an upwardly protruding base (71), the center of the base (71) is provided with an upwardly extending screw column (72), the bottom center of the buffer rubber column (6) is provided with a socket (61) capable of accommodating the corresponding screw column (72) to be inserted, and the bottom of the buffer rubber column (6) abuts against the corresponding top surface of the base (71).

4. The drop-resistant laser level according to claim 3, characterized in that: A fixing hole (24) is provided on the bottom surface of the bottom end of the hanger (2), and the top end of the buffer rubber column (6) is embedded in the fixing hole (24) in an interference fit.

5. The drop-resistant laser level according to claim 4, characterized in that: A plurality of inserting strips (73) are provided at intervals along the circumferential outer wall of the screw column (72), and a plurality of slots (62) are provided at intervals on the buffer rubber column (6) extending upward from the bottom of the buffer rubber column (6) to the bottom of the fixing hole (24). The inserting strips (73) can be inserted into the corresponding slots (62) when the screw column (72) is inserted into the insertion hole (61).

6. The drop-resistant laser level according to claim 5, characterized in that: A screw hole A (25) that is connected to the insertion hole (61) is provided through the center of the fixing hole (24). The bottom of the hanger (2) is fixed to the bottom cover (12) by inserting a screw through the screw hole A (25) and into the screw column (72).

7. A drop-resistant laser level according to any one of claims 1 to 6, characterized in that: The protective window cover (5) comprises: A support frame (51) made of metal, wherein the support frame (51) has openings (511) on four sides; an elastic protective pad (52), the elastic protective pad (52) being made of a rubber material and covering the top of the support frame (51); An annular protective pad A (53) and an annular protective pad B (54) are arranged inside the support frame (51), wherein the annular protective pad A (53) is arranged at the top of the support frame (51) and is closely connected to the inner side of the top of the support frame (51), and the annular protective pad B (54) is arranged around the inner wall of the bottom of the support frame (51); A glass shield (55) is clamped between the annular protective pad A (53) and the annular protective pad B (54), wherein the four sides of the glass shield (55) correspond to the four openings (511) of the support frame (51); Screw holes B (512) are respectively provided at the bottom edges of the four openings (511) of the support frame (51), and the screw holes B (512) are used to connect to the housing (10) of the laser level by screwing screws.

8. The drop-resistant laser level according to claim 7, characterized in that: A plurality of downwardly protruding positioning posts (513) are provided on the bottom surface of the support frame (51), and the positioning posts (513) can be inserted into positioning holes (514) preset on the housing (10).

9. The drop-resistant laser level according to claim 8, characterized in that: A protruding fixing block (515) is provided on the top of the support frame (51), and an embedding groove (521) is provided on the bottom surface of the elastic protective pad (52). When the elastic protective pad (52) covers and fits against the top surface of the support frame (51), the fixing block (515) is interference-embedded in the embedding groove (521).

10. The drop-resistant laser level according to claim 9, characterized in that: An annular groove A (531) is provided around the bottom of the annular protective pad A (53), and an annular groove B (541) is provided around the top of the annular protective pad B (54). The top periphery of the glass shield (55) is inserted into the annular groove A (531), and the bottom periphery of the glass shield (55) is inserted into the annular groove B (541).

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