An electric bracket for a laser level

By introducing electric gimbal, screw-in assembly and air pump technology into the laser level bracket, the problem of insufficient fixation of the existing bracket is solved, and stable fixation and efficient use is achieved in many scenarios, with stronger applicability and energy consumption Lower, safer to carry.

CN118998556BInactive Publication Date: 2024-12-27NANTONG BAIRUILI ELECTRIC TOOLS CO LTD
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Patent Information

Application Number
CN202411499934.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-25
Publication Date
2024-12-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing laser level holder only has a single support function, which is inconvenient to fix it with the ground or other objects, resulting in limited use and difficult to meet the needs of different application scenarios.

Method used

An electric bracket including a base, an electric gimbal, a support leg, a fixing screw and a screw-in assembly is designed. By driving the motor, the fixing screw is screwed vertically in or out on the support leg, so as to achieve stability on the non-planar surface. Fix and form negative pressure fixation on the smooth plane through the air pump to reduce the demand for power equipment and reduce energy consumption.

Benefits of technology

It realizes the stable fixation of the laser level in different scenarios, is more applicable, reduces manpower waste, reduces operating energy consumption, and reduces overall accumulation when carried, improving safety and protection effects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to an electric bracket for a laser level applied in the bracket field, comprising a base and an electric pan-tilt mounted on the bottom end of the laser level body, the electric pan-tilt mounted on the top end of the base, and also comprising a support leg, wherein a plurality of support legs are provided, and the plurality of support legs are equidistantly installed on the bottom end of the base, a fixing screw and a screw-in assembly are installed on the inner side of the support leg, and the screw-in assembly comprises a driving motor and a screw-in structure, the driving motor is installed on the inner side of the supporting leg, and the screw-in structure is installed between the output end of the driving motor and the fixing screw. In this scheme, a fixing screw and a screw-in assembly are arranged on the inner side of the supporting leg, and the screw-in assembly is used to make the fixing screw be screwed in vertically upward or screwed out downward at the supporting leg, so that when applied to a non-planar placement surface, the fixing screw can be easily screwed into the non-planar placement surface by using the fixing screw, so as to achieve stable fixation of the laser level, and the applicability is stronger.
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Description

Technical Field

[0001] The invention relates to an electric bracket, in particular to an electric bracket of a laser leveler applied in the bracket field. Background Art

[0002] The laser level machine is one of the positioning equipment used for sheet metal processing and for marking and positioning steel plates in mechanical manufacturing. The common laser level is mainly composed of a laser level body, connecting components, a multi-dimensional adjustment structure, a control switch, a control system and a power supply device, and the specific operation process of the laser level is as follows: during operation, the staff installs the laser level body on the surface of the multi-dimensional adjustment structure through the connecting components, and manually adjusts the level of the multi-dimensional adjustment structure to complete the overall installation of the laser level. When in use, the laser level is manually controlled by using the control switch, control system and power supply device to perform laser positioning operations.

[0003] When using a laser level, it is usually necessary to add a bracket at the bottom of the laser level to support the laser level.

[0004] For example, the specification of patent application number CN202310632812.7 discloses a multi-dimensional adjustment structure and adjustment method for a laser level machine, wherein the main mechanism also includes a laser level, the bottom of the laser level is threadedly connected to a base plate, and the bottom of the base plate is threadedly connected to a support seat. The present invention is provided with a lifting mechanism and an adjustment protection system, which is beneficial for the anti-slip pad to contact the construction ground when the lifting mechanism is in an open state. When the three groups of first brackets are tilted due to different placement heights, the adjustment protection system controls the electric hydraulic column on one side of the corresponding group of first brackets to start powering on, and the electric hydraulic column starts powering on and performs corresponding telescopic operations, thereby driving the second bracket to perform corresponding length adjustment operations, so as to drive the overall lifting mechanism to be in a horizontal state, thereby Achieve the effect of automatic adjustment and reduce certain manpower waste; and the specification of patent application number CN201921003870.9 discloses an electric adjustment frame of a laser level, including a level body, an adjustment bracket located at the bottom of the level body, and a control mechanism; the adjustment bracket includes an adjustment component and a positioning component, the number of adjustment components is two groups and they are located at the two ends of the bottom of the level body respectively, the adjustment component includes an adjustment motor, a rotating shaft located at the end of the adjustment motor shaft, and a cam located on the rotating shaft, the cam is in contact with the bottom of the level body, the positioning component is located at the bottom of the level body and cooperates with the level body, the positioning component includes a bottom plate and a positioning plate located above the bottom plate, and a cavity is provided on the positioning plate; the control mechanism includes a console, and the console is electrically connected to the adjustment component. The laser level is adjusted by electric adjustment, with high adjustment accuracy and simple adjustment method.

[0005] Based on the above search and combined with the prior art, it is found that most of the existing laser level brackets only have a single supporting function and are not convenient to fix to the ground or other objects, resulting in certain limitations in use and making it difficult to meet the usage requirements in different application scenarios. Therefore, an electric bracket for a laser level is proposed to improve the above problems. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that most of the existing laser level brackets only have a single supporting function and are not convenient to be fixed to the ground or other objects, resulting in certain limitations in use and making it difficult to meet the usage requirements in different application scenarios.

[0007] In order to solve the above problems, the present invention provides an electric bracket for a laser level, comprising a base and an electric pan-tilt mounted on the bottom of the laser level body, wherein the electric pan-tilt is mounted on the top of the base; and further comprising:

[0008] Support legs, a plurality of support legs are provided, and the plurality of support legs are equidistantly installed at the bottom end of the base;

[0009] The inner side of the support leg is equipped with a fixing screw and a screw-in assembly;

[0010] The screw-in assembly includes a driving motor and a screw-in structure, wherein the driving motor is installed on the inner side of the supporting leg, and the screw-in structure is installed between the output end of the driving motor and the fixing screw;

[0011] The driving motor drives the fixing screw to be screwed in vertically upwards or screwed out downwards at the supporting leg through the screw-in structure.

[0012] In the electric bracket of the above-mentioned laser level, by arranging a fixing screw and a screw-in assembly on the inner side of the supporting leg, the screw-in assembly is used to allow the fixing screw to be screwed in vertically upward or screwed out downward at the supporting leg. Therefore, when used on a non-planar placement surface, the fixing screw can be easily screwed into the non-planar placement surface, thereby achieving stable fixation of the laser level and making it more applicable.

[0013] As a further supplement to the present application, the precession structure includes a rotation unit and a propulsion unit;

[0014] The propulsion unit is arranged in cooperation with the rotation unit, and the fixing screw is connected to the rotation unit and the propulsion unit at the same time;

[0015] The rotating unit drives the fixing screw to rotate, and the propulsion unit drives the fixing screw to be screwed in vertically upward or screwed out downward at the supporting leg; the rotating unit cooperates with the propulsion unit to easily fix the fixing screw on a non-planar placement surface; and in other usage situations, the fixing screw can be automatically stored inside the supporting leg, which is more convenient and safe.

[0016] As a further supplement to the present application, the rotating unit includes an external threaded sleeve and a special-shaped slider;

[0017] The external threaded sleeve is coaxially fixed to the output end of the driving motor, the special-shaped slider is fixed to the top of the fixing screw, and the inner side of the external threaded sleeve is provided with a special-shaped slide groove 2 for the special-shaped slider to slide vertically; the external threaded sleeve can rotate synchronously with the fixing screw through the special-shaped slider.

[0018] As a further supplement to the present application, the propulsion unit includes an internal threaded sleeve, a connecting sleeve and a fixing sleeve;

[0019] The inner thread sleeve is threadably connected to the outer side of the outer thread sleeve, and the inner side of the supporting leg is provided with a special-shaped sliding groove 1 for the outer thread sleeve to slide vertically;

[0020] The fixing sleeve is located at the lower side of the external threaded sleeve and is fixedly sleeved on the middle part of the fixing screw. The connecting sleeve is coaxially rotatably installed on the lower end of the internal threaded sleeve, and the bottom end of the connecting sleeve is fixed to the fixing sleeve. The external threaded sleeve rotates synchronously with the fixing screw through the special-shaped slider, so that the internal threaded sleeve fits the special-shaped slide groove and slides vertically, thereby moving the fixing screw along its axial direction through the connecting sleeve and the fixing sleeve. Compared with the conventional technology in the prior art, the above-mentioned effect generally requires the cooperation of electric rotary drive equipment and electric telescopic equipment. However, this scheme realizes that under the driving action of a drive motor, the fixing screw rotates around its axis while moving along its axial direction, reducing the demand for electric drive equipment and reducing the overall operating energy consumption.

[0021] As a further supplement to the present application, the horizontal cross-sectional outer contours of the internal threaded sleeve and the special-shaped slider are both non-circular structures, such as square, oval, etc.

[0022] As a further supplement to the present application, a mounting plate is installed at the bottom of the side end of the support leg; the mounting plate is used to be fixed to the top of a conventional tripod; a rubber gasket is installed at the bottom end of the support leg; the rubber gasket can play a good buffering role and is beneficial to protecting the laser level body.

[0023] As another improvement of the present application, a through hole is provided on the base for the supporting leg to slide vertically through, a supporting ring is provided on the upper side of the base, the top end of the supporting leg passes through the base and is fixed to the supporting ring, a lifting drive device is installed on the base, and the output end of the lifting drive device is fixed to the supporting ring; after use, the lifting drive device can be used to drive the supporting ring to move up with the supporting leg, thereby reducing the overall area and making it easier to carry; in addition, the supporting legs and the supporting ring surround the outside of the laser level body, which provides good protection for the laser level body and makes it safer during carrying.

[0024] As another improvement of the present application, an air pump is installed at the bottom end of the base, and a cavity connected to the output end of the air pump is provided on the inner side of the base;

[0025] The side end of the base is provided with an air hole 1 connected to the cavity, and the side end of the supporting leg is provided with an air hole 2 connected to the air hole 1;

[0026] An air hole three is arranged on the internal threaded sleeve; when the bracket needs to be fixed to a non-horizontal smooth plane (such as a glass surface, a polished metal surface, a glazed table top), the supporting leg is fitted to the smooth plane, and the air inside the supporting leg is sucked out by an air pump to form a negative pressure state inside the supporting leg, so that the bracket with the laser level body is stably fixed on the smooth plane.

[0027] As another improvement supplement of the present application, a flexible sealing ring is installed on the inner wall of the air hole on one side close to the supporting leg, and the flexible sealing ring is in contact with the outer wall of the supporting leg, so that a stable negative pressure state can be maintained inside the supporting leg.

[0028] 1. By arranging a fixing screw and a screw-in assembly on the inner side of the supporting leg, a driving motor is used to drive the external threaded sleeve to rotate. While the external threaded sleeve rotates synchronously with the fixing screw through the special-shaped slider, the internal threaded sleeve fits the special-shaped slide groove and slides vertically, so that the fixing screw is moved along its axial direction through the connecting sleeve and the fixing sleeve, so that the fixing screw can be easily screwed into the non-planar placement surface, thereby realizing stable fixation of the laser level, and the applicability is stronger; and compared with the conventional technology in the prior art, the realization of the above-mentioned effect generally requires the cooperation of an electric rotating drive device and an electric telescopic device, and this scheme realizes that under the drive of a driving motor, the fixing screw rotates around its axis while moving along its axial direction, thereby reducing the demand for electric drive equipment and reducing the overall operating energy consumption.

[0029] By adopting a vertical sliding installation method of the support legs and the base, after use, the lifting drive device can be used to drive the support ring to move up with the support legs, reducing the overall volume and making it easier to carry. In addition, the support legs and support ring surround the outside of the laser level body, providing good protection for the laser level body, making it safer to carry.

[0030] By setting the air pump, when the bracket needs to be fixed to a non-horizontal smooth plane, the supporting legs can be fitted into the smooth plane, and the air inside the supporting legs can be sucked out by the air pump to form a negative pressure state inside the supporting legs, thereby allowing the bracket to be stably fixed with the laser level body on the smooth plane, with a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1It is a schematic diagram of the three-dimensional structure in a state where a fixing screw is screwed in according to a specific embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure in a specific embodiment of the present application when the fixing screw is unscrewed;

[0033] Figure 3 It is a schematic diagram of a three-dimensional structure in a storage state in a specific embodiment of the present application;

[0034] Figure 4 It is a schematic diagram of the planar structure in a state where a fixing screw is screwed in according to a specific embodiment of the present application;

[0035] Figure 5 It is a schematic diagram of the planar structure in a state where the fixing screw is screwed out in a specific embodiment of the present application;

[0036] Figure 6 It is a schematic diagram of the cross-section structure of the support leg in a specific embodiment of the present application;

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the screw-in structure in the specific implementation manner of the present application;

[0038] Figure 8 It is a schematic diagram of the split structure of the screw-in structure in the specific implementation manner of the present application.

[0039] Description of the numbers in the figure:

[0040] 1. Base; 101. Air hole one; 2. Laser level body; 3. Electric pan / tilt; 4. Support leg; 401. Special-shaped slide groove one; 402. Air hole two; 5. Fixing screw; 6. Screw-in assembly; 61. Drive motor; 62. External threaded sleeve; 6201. Special-shaped slide groove two; 63. Special-shaped slider; 64. Internal threaded sleeve; 6401. Air hole three; 65. Connecting sleeve; 66. Fixing sleeve; 7. Lifting drive device; 8. Support ring; 9. Air pump; 10. Mounting plate; 11. Rubber gasket. DETAILED DESCRIPTION

[0041] The following is a detailed description of three implementation methods of the present application in conjunction with the accompanying drawings.

[0042] The first implementation method:

[0043] The present invention provides an electric bracket for a laser level. Figure 1-8 It includes a base 1 and an electric pan-tilt head 3 installed at the bottom end of the laser level body 2, and the electric pan-tilt head 3 is installed at the top end of the base 1; it also includes a supporting leg 4, a plurality of supporting legs 4 are provided, and the plurality of supporting legs 4 are equidistantly installed at the bottom end of the base 1, for supporting the base 1 and the laser level body 2.

[0044] Among them, Figure 4-Figure 6 It is shown that a fixing screw 5 and a screw-in assembly 6 are installed on the inner side of the supporting leg 4. The screw-in assembly 6 includes a driving motor 61 and a screw-in structure. The driving motor 61 is installed on the inner side of the supporting leg 4. The screw-in structure is installed between the output end of the driving motor 61 and the fixing screw 5. The driving motor 61 drives the fixing screw 5 to be screwed in vertically upward or screwed out downward at the supporting leg 4 through the screw-in structure.

[0045] By arranging a fixing screw 5 and a screw-in assembly 6 on the inner side of the supporting leg 4, the fixing screw 5 can be screwed in vertically upward or screwed out downward at the supporting leg 4 by utilizing the screw-in assembly 6. Therefore, when used on a non-planar placement surface, the fixing screw 5 can be easily screwed into the non-planar placement surface, thereby achieving stable fixation of the laser level and making it more applicable.

[0046] Regarding the screw-in structure, specifically, the screw-in structure includes a rotating unit and a propulsion unit, the propulsion unit and the rotating unit are arranged in coordination, the fixing screw 5 is connected to the rotating unit and the propulsion unit at the same time, the rotating unit drives the fixing screw 5 to rotate, and the propulsion unit drives the fixing screw 5 to be screwed in vertically upward or screwed out downward at the support leg 4; the rotating unit and the propulsion unit cooperate to make the fixing screw 5 easily fixed on a non-planar placement surface; and in other usage situations, the fixing screw 5 can be automatically stored inside the support leg 4, which is more convenient and safe.

[0047] Regarding the rotating unit, more specifically, Figure 6-Figure 8 As shown, the rotating unit includes an external threaded sleeve 62 and a special-shaped slider 63. The external threaded sleeve 62 is coaxially fixed to the output end of the driving motor 61, and the special-shaped slider 63 is fixed to the top of the fixing screw 5. The inner side of the external threaded sleeve 62 is provided with a special-shaped slide groove 6201 for the special-shaped slider 63 to slide vertically; the external threaded sleeve 62 can rotate synchronously with the fixing screw 5 through the special-shaped slider 63.

[0048] Regarding the propulsion unit, more specifically, Figure 6-Figure 8 As shown, the propulsion unit includes an internal threaded sleeve 64, a connecting sleeve 65 and a fixed sleeve 66. The internal threaded sleeve 64 is threadedly sleeved on the outer side of the external threaded sleeve 62. The inner side of the support leg 4 is provided with a special-shaped slide groove 401 for the external threaded sleeve 62 to slide vertically. The fixed sleeve 66 is located on the lower side of the external threaded sleeve 62 and fixedly sleeved on the middle part of the fixing screw 5. The connecting sleeve 65 is coaxially rotatably installed on the lower end of the internal threaded sleeve 64, and the bottom end of the connecting sleeve 65 is fixed to the fixed sleeve 66.

[0049] While the external threaded sleeve 62 rotates synchronously with the fixing screw 5 through the special-shaped slider 63, the internal threaded sleeve 64 slides vertically in accordance with the special-shaped slide groove 401, thereby moving the fixing screw 5 along its axial direction through the connecting sleeve 65 and the fixing sleeve 66. Compared with the conventional technology in the prior art, the above-mentioned effect generally requires the cooperation of electric rotary drive equipment and electric telescopic equipment. However, this scheme realizes the driving action of a drive motor 61 through the coordinated setting of the above screw-in structure, so that the fixing screw 5 rotates around its axis and moves along its axial direction at the same time, thereby reducing the demand for electric drive equipment and reducing the overall operating energy consumption.

[0050] The outer contours of the horizontal cross sections of the internal thread sleeve 64 and the special-shaped slider 63 are both non-circular structures, such as square, elliptical, etc.

[0051] Among them, a mounting plate 10 is installed at the bottom of the side end of the supporting leg 4; the mounting plate 10 is used to be fixed to the top of a conventional tripod; a rubber gasket 11 is installed at the bottom end of the supporting leg 4; the rubber gasket 11 can play a good buffering role, which is beneficial to protecting the laser level body 2.

[0052] Second implementation method:

[0053] This embodiment adds the following structure on the basis of embodiment 1, so that the present application has the effect of being easy to carry, and the specific configuration is as follows: Figure 1-Figure 2 As shown, the base 1 is provided with a through hole for the support leg 4 to slide vertically through, the upper side of the base 1 is provided with a support ring 8, the top of the support leg 4 passes through the base 1 and is fixed to the support ring 8, and the base 1 is equipped with a lifting drive device 7, and the output end of the lifting drive device 7 is fixed to the support ring 8.

[0054] After use, the lifting drive device 7 can be used to drive the support ring 8 to move the support leg 4 upward to reduce the overall volume, thereby facilitating carrying; in addition, the support leg 4 and the support ring 8 surround the outside of the laser level body 2, which provides good protection for the laser level body 2 and makes it safer during carrying.

[0055] The third implementation method:

[0056] This embodiment adds the following structure on the basis of Embodiment 1 and Embodiment 2, so that the present application has a wider scope of application, and the specific configuration is as follows: Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, an air pump 9 is installed at the bottom end of the base 1, a cavity connected to the output end of the air pump 9 is provided on the inner side of the base 1, an air hole 101 connected to the cavity is provided at the side end of the base 1, an air hole 2 402 connected to the air hole 101 is provided at the side end of the supporting leg 4, and an air hole 3 6401 is provided on the internal threaded sleeve 64.

[0057] When the bracket needs to be fixed to a non-horizontal smooth surface (such as a glass surface, a polished metal surface, a glazed table top), the support leg 4 is attached to the smooth surface, and the air inside the support leg 4 is sucked out by the air pump 9 to form a negative pressure state inside the support leg 4, so that the bracket with the laser level body 2 is stably fixed on the smooth surface.

[0058] Among them, a flexible sealing ring is installed on the inner wall of the air hole 101 close to the supporting leg 4, and the flexible sealing ring is in contact with the outer wall of the supporting leg 4, so that the inside of the supporting leg 4 can maintain a stable negative pressure state.

[0059] In this scheme, by setting a fixing screw 5 and a screw-in assembly 6 on the inner side of the supporting leg 4, a driving motor 61 is used to drive the external threaded sleeve 62 to rotate. While the external threaded sleeve 62 rotates synchronously with the fixing screw 5 through the special-shaped sliding block 63, the internal threaded sleeve 64 is fitted with the special-shaped sliding groove 401 to slide vertically, so that the fixing screw 5 is moved along its axial direction through the connecting sleeve 65 and the fixing sleeve 66, so that the fixing screw 5 can be easily screwed into the non-planar placement surface, thereby realizing stable fixation of the laser level, and having stronger applicability; and compared with the conventional technology in the prior art, realizing the above-mentioned effect generally requires the cooperation of an electric rotating driving device and an electric telescopic device, and this scheme realizes that under the driving action of a driving motor 61, the fixing screw 5 rotates around its axis while moving along its axial direction, thereby reducing the demand for electric driving equipment and reducing the overall operating energy consumption;

[0060] In this solution, by adopting the installation mode of vertical sliding of the support leg 4 and the base 1, after use, the lifting drive device 7 can be used to drive the support ring 8 to move up with the support leg 4, thereby reducing the overall volume and making it convenient to carry; in addition, the support leg 4 and the support ring 8 surround the outer side of the laser level body 2, which plays a good protective role for the laser level body 2, making it safer during carrying;

[0061] In this solution, through the provision of the air pump 9, when it is necessary to fix the bracket to a non-horizontal smooth plane, the support leg 4 can be fitted into the smooth plane, and the air inside the support leg 4 can be sucked out by the air pump 9, so that a negative pressure state is formed inside the support leg 4, thereby allowing the bracket to be stably fixed with the laser level body 2 on the smooth plane, with a wider range of applications.

[0062] 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. An electric bracket for a laser level, comprising a base (1) and an electric pan-tilt platform (3) mounted on the bottom end of a laser level body (2), wherein the electric pan-tilt platform (3) is mounted on the top end of the base (1); characterized in that: Also includes: Support legs (4), a plurality of the support legs (4) being provided, and the plurality of the support legs (4) being equidistantly mounted on the bottom end of the base (1); A fixing screw (5) and a screw-in assembly (6) are installed on the inner side of the support leg (4); The screw-in assembly (6) comprises a drive motor (61) and a screw-in structure, wherein the drive motor (61) is mounted on the inner side of the support leg (4), and the screw-in structure is mounted between the output end of the drive motor (61) and the fixing screw (5), and the drive motor (61) drives the fixing screw (5) to be screwed in vertically upwards or screwed out downwards at the support leg (4) via the screw-in structure; The screw-in structure comprises a rotating unit and a propulsion unit, the propulsion unit is arranged in cooperation with the rotating unit, the fixing screw (5) is connected to the rotating unit and the propulsion unit at the same time, the rotating unit drives the fixing screw (5) to rotate, and the propulsion unit drives the fixing screw (5) to be screwed in vertically upwards or screwed out downwards at the support leg (4); The rotating unit comprises an external threaded sleeve (62) and a special-shaped slider (63), wherein the external threaded sleeve (62) is coaxially fixed to the output end of the driving motor (61), the special-shaped slider (63) is fixed to the top end of the fixing screw (5), and a second special-shaped slide groove (6201) for the special-shaped slider (63) to slide vertically is provided on the inner side of the external threaded sleeve (62); The propulsion unit comprises an internal threaded sleeve (64), a connecting sleeve (65) and a fixing sleeve (66); the internal threaded sleeve (64) is threadedly sleeved on the outer side of the external threaded sleeve (62); the inner side of the support leg (4) is provided with a special-shaped slide groove (401) for the external threaded sleeve (62) to slide vertically; the fixing sleeve (66) is located at the lower side of the external threaded sleeve (62) and is fixedly sleeved on the middle part of the fixing screw (5); the connecting sleeve (65) is coaxially rotatably mounted on the lower end of the internal threaded sleeve (64); the bottom end of the connecting sleeve (65) is fixed to the fixing sleeve (66); The base (1) is provided with a through hole for the support leg (4) to vertically slide through, the upper side of the base (1) is provided with a support ring (8), the top end of the support leg (4) passes through the base (1) and is fixed to the support ring (8), the base (1) is provided with a lifting drive device (7), the output end of the lifting drive device (7) is fixed to the support ring (8), the bottom end of the base (1) is provided with an air pump (9), the inner side of the base (1) is provided with a cavity connected to the output end of the air pump (9), the side end of the base (1) is provided with an air hole 1 (101) connected to the cavity, the side end of the support leg (4) is provided with an air hole 2 (402) connected to the air hole 1 (101), and the internal threaded sleeve (64) is provided with an air hole 3 (6401).

2. The electric bracket of the laser level according to claim 1, characterized in that: The horizontal cross-sectional outer contours of the internally threaded sleeve (64) and the special-shaped sliding block (63) are both non-circular structures.

3. The electric bracket of the laser level according to claim 1, characterized in that: A mounting plate (10) is mounted on the bottom of the side end of the support leg (4), and a rubber gasket (11) is mounted on the bottom end of the support leg (4).

4. The electric bracket of the laser level according to claim 1, characterized in that: A flexible sealing ring is installed on the inner wall of one side of the air hole (101) close to the supporting leg (4), and the flexible sealing ring is in contact with the outer wall of the supporting leg (4).