A fast positioning laser level

Abstract

The present invention relates to a fast positioning laser level applied in the field of laser level, comprising a support seat, a laser level body and a pendulum. A positioning mechanism is installed in the middle of the upper end of the support seat, the positioning mechanism is adapted to the pendulum and is used to assist the pendulum to stop quickly. The positioning mechanism comprises a positioning ring and a positioning unit. The positioning ring is fixed to the upper end surface of the support seat and is coaxially arranged on the outer side of the pendulum. A positioning air cavity is arranged on the inner side of the positioning ring, and compressed gas is arranged on the inner side of the positioning air cavity. A plurality of positioning units are equidistantly installed on the inner circumferential surface of the positioning ring and penetrate the positioning ring. The positioning unit comprises a positioning sleeve, a positioning slide column, a limit slider and a reset structure. The scheme utilizes the coordinated action of the positioning air cavity, the positioning sleeve, the positioning slide column, the limit slider and the reset structure, and can perform follow-up buffering on the pendulum when it shakes, shorten the shaking time of the pendulum, accelerate the stabilization speed of the pendulum, and thus improve the construction operation efficiency.

Description

Technical Field

[0001] The invention relates to a laser level, in particular to a fast positioning laser level applied in the field of laser levels. Background Art

[0002] Laser level can generate multiple vertical and horizontal laser planes to determine the level and plumb direction accuracy, and is widely used in many fields such as construction, decoration and decoration. The laser level in the prior art includes a base, a main body and a shell.

[0003] For example, the patent application number CN 201821194891.9 discloses a fast positioning laser level, including a housing, a mounting base, a power supply and legs, the mounting base is located above the legs, the mounting base is rotatably connected to the legs, the housing is located above the mounting base, a core is arranged in the housing, a laser emission module is arranged on the four sides of the core, the laser emission module includes a laser emitter and a light guide groove, the light guide groove is arranged on both sides of the laser emitter, a hanger is arranged above the core, a rotating shaft is arranged in the hanger, the rotating shaft is rotatably connected to the hanger, a pendulum shaft is vertically arranged at the center of the rotating shaft, the pendulum shaft is rotatably connected to the rotating shaft, the pendulum shaft is rotatably connected to the core, a control circuit board is arranged above the hanger, and the conductive connection line between the control circuit board and the laser emission module passes through the core. The laser level is easy to install and disassemble, can effectively reduce the cost of repair and maintenance, and the resistance encountered during positioning is small, and positioning can be achieved quickly.

[0004] Based on the above search and in combination with the prior art, it is found that when the existing laser level is in use, the pendulum swings for a relatively long time, and the user needs to wait for the pendulum to stabilize before taking measurements, which causes certain delays in construction work and reduces construction operation efficiency. Therefore, a fast-positioning laser level is proposed to improve the above problem. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the swing time of the pendulum is relatively long, and the user needs to wait for the pendulum to stabilize before taking measurements, which causes certain delays in construction work and reduces the efficiency of construction operations.

[0006] In order to solve the above problems, the present invention provides a fast positioning laser level, comprising a support seat, a laser level body mounted on the top of the support seat through a mounting frame, a pendulum mounted on the bottom of the laser level body, and a protective shell covered on the outside of the mounting frame: A positioning mechanism is installed in the middle of the upper end of the support seat, and the positioning mechanism is adapted to the pendulum to assist the pendulum to stop quickly; The positioning mechanism includes a positioning ring and a positioning unit. The positioning ring is fixed to the upper end surface of the support seat and is coaxially arranged on the outer side of the pendulum. A positioning air cavity is arranged on the inner side of the positioning ring, and compressed gas is arranged on the inner side of the positioning air cavity. A plurality of positioning units are provided, and the plurality of positioning units are equidistantly installed on the inner circumferential surface of the positioning ring and penetrate the positioning ring; The positioning unit includes a positioning sleeve, a positioning slide column, a limit slide block and a reset structure; The positioning sleeve is fixed on the positioning ring and passes through the positioning ring, and the positioning sleeve is connected with the positioning air cavity; The end of the positioning slide column located inside the positioning slide sleeve is fixed to the limit slider, the limit slider is slidably fitted with the inner wall of the positioning slide sleeve, and the end of the positioning slide column away from the limit slider is arranged toward the side of the pendulum; The reset structure is arranged between the positioning sleeve and the positioning slide column, so that the limit slide block is reset to the middle position of the positioning sleeve without being affected by external force.

[0007] In the above-mentioned fast positioning laser level, the positioning air cavity, positioning sleeve, positioning slide column, limit slider and reset structure work together to provide follow-up buffering for the pendulum when it shakes, shortening the shaking time of the pendulum and accelerating the stabilization speed of the pendulum, thereby improving the construction operation efficiency.

[0008] As a further supplement to the present application, the end of the positioning slide column away from the limiting slide block is in contact with the side end of the pendulum, ensuring that the pendulum is buffered in a follow-up manner while the pendulum shakes.

[0009] As a further supplement to the present application, a hemispherical groove is provided at the end of the positioning slide column away from the limiting slider, and a positioning steel ball is movably installed on the positioning slide column through the hemispherical groove, and the positioning steel ball is in contact with the side end of the pendulum; the positioning steel ball and the pendulum generate rolling friction, which reduces the friction between the pendulum and is not easy to cause wear to the pendulum.

[0010] As a further supplement to the present application, a damping hole is provided on the side of the positioning sleeve away from the positioning slide column, the aperture of the damping hole is smaller than the inner diameter of the positioning sleeve, and the positioning sleeve and the side of the limiting slider away from the positioning slide column form a balancing air cavity; the setting of the damping hole can play a damping and buffering role when the pendulum swings, thereby reducing the unnecessary swing amplitude of the pendulum.

[0011] As a further supplement to the present application, the diameter of the damping air hole is not greater than one tenth of the inner diameter of the positioning sleeve, ensuring that the damping air hole can play a damping and buffering role when the pendulum shakes.

[0012] As a further supplement to the present application, the reset structure includes a reset air cavity formed by a positioning sleeve and a side of the limiting slider close to the positioning slide column; The reset air cavity is a sealed air cavity, and compressed gas is provided on the inner side of the reset air cavity, and the air pressure on the inner side of the reset air cavity is equal to the air pressure on the inner side of the positioning air cavity; when the pendulum swings toward one side, the positioning slide column on that side is squeezed by the pendulum, thereby pushing the limit slider to slide toward the side away from the pendulum, and the damping air hole plays a role of damping and buffering, reducing the unnecessary shaking amplitude of the pendulum; at this time, the air pressure on the inner side of the reset air cavity corresponding to this side is reduced, and at this time, the positioning slide column on the opposite side is affected by the air pressure and slides toward one side of the pendulum (equivalent to moving with the pendulum), thereby increasing the air pressure on the inner side of the reset air cavity on the opposite side; conversely, when the pendulum swings toward the other side, the movement of the limit sliders on both sides and the air pressure change of the reset air cavity are opposite to those mentioned above, thereby realizing follow-up buffering of the pendulum, shortening the swinging time of the pendulum, accelerating the stabilization speed of the pendulum, and improving the construction operation efficiency.

[0013] As another improvement of the present application, the reset structure includes a spring component, and the spring component is fixed between the end of the limiting sliding block away from the positioning sliding column and the positioning sliding sleeve.

[0014] As another improved supplement of the present application, the spring component is composed of a tension spring and a compression spring fixed in series; so that the spring component can satisfy both tension and compression functions, thereby realizing the follow-up buffering effect of the positioning slide column on the pendulum.

[0015] As a further supplement to the present application, a plurality of adjustable support legs are equidistantly mounted on the bottom end of the support base; The adjustable support leg includes an internal threaded sleeve fixed to the bottom end of the support base, and a threaded column threadedly connected to the inner side of the internal threaded sleeve. The bottom end of the threaded column extends to the outer side of the internal threaded sleeve and is fixed with a rotating table. By manually rotating the rotating table, the horizontality of the laser level can be roughly adjusted.

[0016] As a further supplement to the present application, the adjustable support legs also include a support column coaxially and horizontally mounted on the bottom end of the turntable; when the turntable is rotated, the support column can be kept stationary, thereby helping to reduce the adjustment resistance, and a buffer pad is bonded to the bottom end of the support column; the vibration generated to the laser level during the placement process is effectively reduced, thereby better protecting the laser level.

[0017] In summary, through the coordinated action of the positioning air cavity, the positioning sleeve, the positioning slide column, the limit slider and the reset structure, when the pendulum swings toward one side, the positioning slide column on that side is squeezed by the pendulum, thereby pushing the limit slider to slide toward the side away from the pendulum, and the damping air holes play a role of damping and buffering, reducing the unnecessary shaking amplitude of the pendulum; at this time, the inner air pressure of the reset air cavity corresponding to this side decreases, and the positioning slide column on the opposite side is affected by the air pressure and slides toward one side of the pendulum (equivalent to moving with the pendulum), thereby increasing the inner air pressure of the reset air cavity on the opposite side; conversely, when the pendulum swings toward the other side, the movement of the limit sliders on both sides and the air pressure change of the reset air cavity are opposite to those described above, thereby realizing follow-up buffering of the pendulum, shortening the shaking time of the pendulum, accelerating the stabilization speed of the pendulum, and improving the construction operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance of the first embodiment of the present application; Figure 2 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application with the protective shell removed; Figure 3 This is a schematic diagram of the planar structure of the first embodiment of the present application with the protective housing removed; Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 This is a schematic diagram of the top view of the positioning mechanism of the first embodiment of the present application; Figure 6 This is a schematic diagram of the local structure of the first embodiment of the present application when a reset air cavity is used; Figure 7 This is a partial demonstration diagram of the first embodiment of the present application when a reset air cavity is used; Figure 8 This is a partial structural schematic diagram of the second embodiment of the present application when a spring component is used; Fig. 9 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0019] Description of the numbers in the figure: 1. Support seat; 2. Mounting frame; 3. Pendulum; 4. Adjustable support leg; 401. Internal threaded sleeve; 402. Threaded column; 403. Rotating table; 404. Support column; 405. Buffer pad; 5. Protective shell; 6. Positioning ring; 61. Positioning air cavity; 7. Positioning unit; 701. Positioning sleeve; 7011. Damping air hole; 7012. Balancing air cavity; 7013. Reset air cavity; 702. Positioning slide column; 703. Limiting slider; 704. Positioning steel ball; 705. Spring component. DETAILED DESCRIPTION

[0020] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0021] The first implementation method: The present invention provides a laser level for rapid positioning. Figure 1-5 It includes a support base 1, a laser level body installed on the top of the support base 1 through a mounting frame 2, a pendulum 3 installed on the bottom of the laser level body, and a protective shell 5 covering the outside of the mounting frame 2. A positioning mechanism is installed in the middle of the upper end of the support base 1. The positioning mechanism is adapted to the pendulum 3 and is used to assist the pendulum 3 to stop quickly.

[0022] Regarding the positioning mechanism, specifically, Figure 2-5 As shown, the positioning mechanism includes a positioning ring 6 and a positioning unit 7. The positioning ring 6 is fixed to the upper end surface of the support seat 1 and is coaxially arranged on the outer side of the pendulum 3. A positioning air cavity 61 is arranged on the inner side of the positioning ring 6, and compressed gas is arranged on the inner side of the positioning air cavity 61.

[0023] There are multiple positioning units 7 , and the multiple positioning units 7 are equidistantly installed on the inner circumferential surface of the positioning ring 6 and penetrate the positioning ring 6 .

[0024] Regarding the positioning mechanism, specifically, Figure 4 It is shown that the positioning unit 7 includes a positioning sleeve 701, a positioning slide column 702, a limiting slider 703 and a reset structure. The positioning sleeve 701 is fixed on the positioning ring 6 and passes through the positioning ring 6. The positioning sleeve 701 is connected to the positioning air cavity 61. The end of the positioning slide column 702 located on the inner side of the positioning sleeve 701 is fixed to the limiting slider 703. The limiting slider 703 slides and fits with the inner wall of the positioning sleeve 701. The end of the positioning slide column 702 away from the limiting slider 703 is arranged toward the side of the pendulum 3. The reset structure is arranged between the positioning sleeve 701 and the positioning slide column 702, so that the limiting slider 703 is reset to the middle position of the positioning sleeve 701 without being affected by external force.

[0025] Based on the cooperation of the above positioning air cavity 61, positioning sleeve 701, positioning slide column 702, limit slider 703 and reset structure, when the pendulum 3 shakes, the pendulum 3 can be buffered in a follow-up manner, the shaking time of the pendulum 3 is shortened, and the stabilization speed of the pendulum 3 is accelerated, thereby improving the construction operation efficiency.

[0026] The end of the positioning slide column 702 away from the limiting slide block 703 is in contact with the side end of the pendulum 3, ensuring that the pendulum 3 is buffered in a follow-up manner when the pendulum 3 shakes.

[0027] In order to better protect the pendulum 3, a hemispherical groove is provided at the end of the positioning slide 702 away from the limiting slider 703, and a positioning steel ball 704 is movably installed on the positioning slide 702 through the hemispherical groove. The positioning steel ball 704 contacts the side end of the pendulum 3; the positioning steel ball 704 and the pendulum 3 generate rolling friction, which reduces the friction between the pendulum 3 and is not easy to cause wear to the pendulum 3.

[0028] like Figure 6 It is shown that a damping hole 7011 is provided on the side of the positioning sleeve 701 away from the positioning slide column 702, the aperture of the damping hole 7011 is smaller than the inner diameter of the positioning sleeve 701, and a balancing air cavity 7012 is formed between the positioning sleeve 701 and the side of the limiting slider 703 away from the positioning slide column 702; the setting of the damping hole 7011 can play a damping and buffering role when the pendulum 3 swings, thereby reducing the unnecessary swing amplitude of the pendulum 3.

[0029] As a further example, the diameter of the damping hole 7011 is not greater than one tenth of the inner diameter of the positioning sleeve 701, so as to ensure that the damping hole 7011 can play a damping and buffering role when the pendulum 3 shakes.

[0030] Among them, regarding the reset structure, specifically, Figure 6 and Figure 7 It is shown that the reset structure includes a reset air cavity 7013 formed by a positioning sleeve 701 and a limiting slider 703 on one side close to the positioning slide post 702. The reset air cavity 7013 is a sealed air cavity, and compressed gas is provided on the inner side of the reset air cavity 7013. In order to ensure the sealing of the reset air cavity 7013, the existing conventional sealing technology can be used to seal the movable parts of the limiting slider 703 and the positioning slide post 702. At the same time, an air pressure sensor is added to the positioning sleeve 701 on the side of the reset air cavity 7013 close to the pendulum 3 to monitor the air pressure inside the reset air cavity 7013. The air pressure inside the reset air cavity 7013 is equal to the air pressure inside the positioning air cavity 61.

[0031] Through the cooperation of the positioning air cavity 61, the positioning sleeve 701, the positioning slide column 702, the limiting slider 703 and the reset structure, when the pendulum 3 swings toward one side, the positioning slide column 702 on this side is squeezed by the pendulum 3, thereby pushing the limiting slider 703 to slide toward the side away from the pendulum 3, and the damping air hole 7011 plays a damping and buffering role, reducing the unnecessary swing amplitude of the pendulum 3; at this time, the inner air pressure of the reset air cavity 7013 corresponding to this side is reduced, and at this time, the positioning slide column 702 on the opposite side is slid toward one side of the pendulum 3 under the action of the air pressure (equivalent to moving with the pendulum 3), thereby increasing the inner air pressure of the reset air cavity 7013 on the opposite side; on the contrary, when the pendulum 3 swings toward the other side, the movement of the limiting sliders 703 on the opposite sides and the air pressure change of the reset air cavity 7013 are opposite to those described above, thereby realizing the follow-up buffering of the pendulum 3, shortening the swing time of the pendulum 3, accelerating the stabilization speed of the pendulum 3, and improving the construction operation efficiency.

[0032] Among them, a plurality of adjustable supporting legs 4 are equidistantly installed at the bottom end of the supporting base 1, such as Fig. 9 As shown, the adjustable support leg 4 includes an internal threaded sleeve 401 fixed to the bottom end of the support base 1, and a threaded column 402 threadedly sleeved on the inner side of the internal threaded sleeve 401, the bottom end of the threaded column 402 extends to the outer side of the internal threaded sleeve 401, and is fixed with a rotating table 403; by manually rotating the rotating table 403, the horizontality of the laser level can be roughly adjusted.

[0033] Among them, the adjustable support leg 4 also includes a support column 404 coaxially and horizontally installed at the bottom end of the rotating table 403; when the rotating table 403 is rotated, the support column 404 can be ensured to remain stationary, which is beneficial to reducing the adjustment resistance. A buffer pad 405 is bonded to the bottom end of the support column 404, which effectively reduces the vibration of the laser level during the placement process and better protects the laser level.

[0034] Working principle: when the pendulum 3 swings toward one side, the positioning slide column 702 on that side is squeezed by the pendulum 3, thereby pushing the limit slider 703 to slide toward the side away from the pendulum 3, and the damping air hole 7011 plays a damping and buffering role, reducing the unnecessary shaking amplitude of the pendulum 3; at this time, the inner air pressure of the reset air cavity 7013 corresponding to this side is reduced, and at this time, the positioning slide column 702 on the opposite side is slided toward one side of the pendulum 3 by the action of the air pressure (equivalent to moving with the pendulum 3), thereby increasing the inner air pressure of the reset air cavity 7013 on the opposite side; conversely, when the pendulum 3 swings toward the other side, the movement of the limit sliders 703 on the opposite sides and the change of the air pressure in the reset air cavity 7013 are opposite to those described above, thereby realizing the follow-up buffering of the pendulum 3, shortening the shaking time of the pendulum 3, and accelerating the stabilization speed of the pendulum 3, thereby improving the construction operation efficiency.

[0035] Second implementation method: The specific configuration of this embodiment is different from that of the embodiment 1 as follows: Figure 8 As shown, the reset structure includes a spring component 705, which is fixed between the end of the limiting slider 703 away from the positioning slide 702 and the positioning sleeve 701, and the spring component 705 is composed of a tension spring and a compression spring fixed in series; the spring component 705 can satisfy both tension and compression functions, thereby realizing the follow-up buffering effect of the positioning slide 702 on the pendulum 3. Compared with implementation mode 1, there is no need to consider the sealing of the cavity formed by the positioning sleeve 701 and the side of the limiting slider 703 close to the positioning slide 702, the structure is relatively simple, and the implementation cost is relatively low.

[0036] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A rapid positioning laser level, comprising a support base (1), a laser level body mounted on the top of the support base (1) via a mounting frame (2), a pendulum (3) mounted on the bottom of the laser level body, and a protective housing (5) covering the outside of the mounting frame (2), characterized in that: A positioning mechanism is installed in the middle of the upper end of the support seat (1), and the positioning mechanism is adapted to the pendulum (3) and is used to assist the pendulum (3) to stop quickly; The positioning mechanism comprises a positioning ring (6) and a positioning unit (7); the positioning ring (6) is fixed to the upper end surface of the support seat (1) and is coaxially arranged on the outside of the pendulum (3); a positioning air cavity (61) is arranged on the inside of the positioning ring (6); and compressed gas is arranged on the inside of the positioning air cavity (61); A plurality of the positioning units (7) are provided, and the plurality of the positioning units (7) are equidistantly mounted on the inner circumferential surface of the positioning ring (6) and penetrate the positioning ring (6); The positioning unit (7) comprises a positioning sleeve (701), a positioning slide column (702), a limiting slide block (703) and a reset structure; The positioning sleeve (701) is fixed on the positioning ring (6) and passes through the positioning ring (6); the positioning sleeve (701) is in communication with the positioning air cavity (61); The end of the positioning slide column (702) located inside the positioning slide sleeve (701) is fixed to the limiting slide block (703), the limiting slide block (703) is slidably fitted with the inner wall of the positioning slide sleeve (701), and the end of the positioning slide column (702) away from the limiting slide block (703) is arranged toward a side of the pendulum (3); The reset structure is arranged between the positioning sleeve (701) and the positioning slide column (702), so that the limiting slide block (703) is reset to the middle position of the positioning sleeve (701) without being affected by external force.

2. A rapid positioning laser level according to claim 1, characterized in that: The end of the positioning slide column (702) away from the limiting slide block (703) contacts the side end of the pendulum (3).

3. The rapid positioning laser level according to claim 1, characterized in that: The end of the positioning slide column (702) away from the limiting slide block (703) is provided with a hemispherical groove, and a positioning steel ball (704) is movably mounted on the positioning slide column (702) through the hemispherical groove, and the positioning steel ball (704) is in contact with the side end of the pendulum (3).

4. The rapid positioning laser level according to claim 1, characterized in that: A damping air hole (7011) is provided on a side of the positioning sleeve (701) away from the positioning slide column (702); the aperture of the damping air hole (7011) is smaller than the inner diameter of the positioning sleeve (701); and a balancing air cavity (7012) is formed between the positioning sleeve (701) and a side of the limiting slider (703) away from the positioning slide column (702).

5. A rapid positioning laser level according to claim 4, characterized in that: The diameter of the damping air hole (7011) is no greater than one tenth of the inner diameter of the positioning sleeve (701).

6. A rapid positioning laser level according to claim 5, characterized in that: The reset structure comprises a reset air cavity (7013) formed by the positioning sleeve (701) and the limiting slider (703) on one side close to the positioning slide post (702); The reset air cavity (7013) is a sealed air cavity, and compressed gas is provided inside the reset air cavity (7013), and the air pressure inside the reset air cavity (7013) is equal to the air pressure inside the positioning air cavity (61).

7. The rapid positioning laser level according to claim 5, characterized in that: The reset structure comprises a spring component (705), and the spring component (705) is fixed between the end of the limiting sliding block (703) away from the positioning sliding column (702) and the positioning sliding sleeve (701).

8. The rapid positioning laser level according to claim 7, characterized in that: The spring component (705) is composed of a tension spring and a compression spring fixed in series.

9. The rapid positioning laser level according to claim 1, characterized in that: A plurality of adjustable support legs (4) are equidistantly mounted on the bottom end of the support base (1); The adjustable support leg (4) comprises an internal threaded sleeve (401) fixed to the bottom end of the support base (1), and a threaded column (402) threadedly sleeved on the inner side of the internal threaded sleeve (401), wherein the bottom end of the threaded column (402) extends to the outer side of the internal threaded sleeve (401) and is fixed with a rotating platform (403).

10. The rapid positioning laser level according to claim 9, characterized in that: The adjustable support leg (4) further comprises a support column (404) coaxially and horizontally rotatably mounted on the bottom end of the rotating platform (403), and a buffer pad (405) is bonded to the bottom end of the support column (404).

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