CN220523696U

CN220523696U - Laser demarcation device

Info

Publication number: CN220523696U
Application number: CN202322050676.9U
Authority: CN
Inventors: 黄佳东; 吴威
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-02-23
Anticipated expiration: 2033-07-31

Abstract

The utility model relates to a laser demarcation device which comprises a main body and a ground pin assembly connected with the main body, wherein the ground pin assembly is provided with a threaded rod arranged at the lower end of the main body and a ground pin sleeved on the periphery of the threaded rod, and the ground pin supports the main body. The lower end of the lower rod body is provided with a threaded rod, the lower end of the threaded rod is provided with a threaded rod body, the lower end of the threaded rod body is connected with the threaded rod body in a threaded mode, the lower end of the threaded rod body is provided with a threaded hole, the threaded rod body is connected with the threaded rod body, the lower end of the threaded rod body is provided with a threaded hole, the threaded rod body is provided with a threaded rod body, the threaded rod body is connected with the threaded rod body, the threaded rod body is provided with a supporting leg, the supporting leg is connected with the threaded rod body, the threaded rod body is formed in the supporting leg, the threaded hole is formed in the threaded hole, the threaded rod body is provided with a step protruding outwards, and the diameter of the step. According to the utility model, the steps are abutted in the accommodating part, so that even if the foundation is in a state of no unscrewing any more, the foundation cannot fall off, and the human-computer interaction is friendly.

Description

Laser demarcation device

[ field of technology ]

The utility model relates to a laser line projector, in particular to a laser line projector used in building construction occasions such as interior decoration, pipeline laying, engineering supervision and the like.

[ background Art ]

The laser line projector is a common measuring and indicating tool for decoration, can project a macroscopic horizontal line and a macroscopic plumb line on the surface of an object to be shot such as a wall surface, plays a role of calibrating a reference, and is suitable for working scenes such as measuring, leveling, tile-sticking, wall-hanging decoration and the like of constructors. The laser demarcation device mainly comprises a main body and a ground foot connected to the bottom of the main body, wherein the ground foot is used for supporting the main body to play a role in stability.

However, since the ground feet are required to serve as a level adjustment function, they are often in an active state, inevitably causing the ground feet to fall off during use, thereby affecting the operation experience of the operator.

The improvement of the structure can be seen from Chinese patent No. CN210141861U published on 13 month in 2020, which discloses a foot screw of an anti-falling electronic flat projector, comprising a projector body, a foot screw and a corner screw fixedly connected with the projector body, wherein a groove matched with the corner screw for use is formed in an inner cavity of the foot screw, a threaded hole is formed in the right side of the foot screw, and the screw extends to the inner cavity of the groove and contacts with the corner screw. According to the technical scheme, the screw enters the groove through the threaded hole and contacts the angle screw for fastening, so that the angle screw is limited, the moving range of the foot screw is effectively limited, the foot screw is prevented from unscrewing from the angle screw, the screw is convenient for workers to use, and the contact matching of the screw and the angle screw can influence the leveling operation hand feeling of the workers; meanwhile, the screw-in amount of the adjusting screw is required to be disassembled and assembled by means of an additional tool, and convenience in operation is lacking.

In view of the foregoing, it is desirable to provide an improved laser line projector that overcomes the shortcomings of the prior art.

[ utility model ]

Aiming at the defects of the prior art, the utility model aims to provide a laser line projector for preventing the ground feet from falling off.

The utility model solves the problems in the prior art by adopting the following technical scheme: the laser demarcation device comprises a main body and a ground pin assembly connected with the main body, wherein the ground pin assembly is provided with a threaded rod arranged at the lower end of the main body and a ground pin sleeved on the periphery of the threaded rod, and the ground pin supports the main body; the lower end of the lower rod body is provided with a threaded rod body, the lower end of the threaded rod body is provided with a threaded rod body, the threaded rod body is provided with a supporting leg connected with the threaded rod body, the threaded rod body is formed in the supporting leg, the threaded rod body is provided with a containing portion, the containing portion is connected with the threaded rod body, the threaded rod body is provided with a step protruding outwards in the radial direction, and the diameter of the step is larger than the inner diameter of the threaded rod body.

The further improvement scheme is as follows: the lower margin has first lower margin and second lower margin, first lower margin with second lower margin buckle is connected.

The further improvement scheme is as follows: the foot has at least one connecting piece of installing in the supporting leg, the connecting piece connect in between first foot with the second foot.

The further improvement scheme is as follows: the connecting piece is a plurality of bulges protruding outwards from the end face of the first ground leg.

The further improvement scheme is as follows: the lower margin is provided with a plurality of second clamping grooves which are inwards sunken from the end face of the second lower margin, and the connecting piece is inserted into the clamping grooves.

The further improvement scheme is as follows: the lower margin is provided with a plurality of first clamping grooves which are inwards sunken from the end face of the first lower margin and a plurality of second clamping grooves which are inwards sunken from the second lower margin, one end of the connecting piece is inserted into the first clamping grooves, and the other end of the connecting piece is inserted into the second clamping grooves.

The further improvement scheme is as follows: the number of the connecting pieces is the same as that of the second clamping grooves.

The further improvement scheme is as follows: the number of the connecting pieces, the number of the first clamping grooves and the number of the second clamping grooves are the same.

The further improvement scheme is as follows: one end of the threaded rod is fixed on the main body, and the other end of the threaded rod is connected with the foundation in a threaded mode.

The further improvement scheme is as follows: the lower margin assembly is provided with an elastic element sleeved on the threaded rod, one end of the elastic element is abutted to the step, and the other end of the elastic element is abutted to the accommodating part.

Compared with the prior art, the utility model has the following beneficial effects: the threaded rod is arranged in the accommodating part by arranging the threaded part and the accommodating part in the foundation, and the diameter of the step is larger than the inner diameter of the threaded part, so that the foundation cannot fall off even if the foundation is in a state of no unscrewing any more, and the human-computer interaction is friendly; in addition, the lower margin is connected into a whole by first lower margin and second lower margin buckle, and the assembly is convenient, and can not influence leveling operation.

[ description of the drawings ]

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of the overall structure of a laser line projector according to the present utility model;

FIG. 2 is a schematic view of the laser line projector of FIG. 1 with a housing removed;

FIG. 3 is a partial cross-sectional view of the foot assembly of the laser line projector of FIG. 1;

FIG. 4 is a schematic exploded view of the foot assembly of FIG. 1.

[ detailed description ] of the utility model

The utility model will be described in further detail with reference to the drawings and embodiments.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The words such as "upper", "lower", "front", "rear", "left", "right", etc., indicating an azimuth or a positional relationship are merely based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Referring to fig. 1 and 2, the present utility model relates to a laser projector 100, and the laser projector 100 includes a main body and a ground leg assembly 1 connected to the main body. The main body comprises a base 2, a housing 3 fixed on the upper side of the base 2, a laser generating component 4 and a control component (not shown) which are arranged in the housing 3, a switch component 5 arranged on the side surface of the housing 3, a functional component 7 arranged on the top surface of the housing 3, an adjusting component 6 arranged on the base 2 and a battery pack arranged on the side surface of the housing 3. The foot assemblies 1 are three and are arranged at 120-degree intervals on the outer periphery of the base 2 so as to place the laser projector 100 on a working plane and form a stable support; the battery pack supplies energy to the laser generating assembly 4, and the switch assembly 5 is turned on to control the laser generating assembly 4 to generate laser lines and project the laser lines to the outside of the housing 3.

In this embodiment, the housing 3 is provided with a first window 21 and a second window 22, and the laser beam generated by the laser generating unit 4 is emitted outwards through the first window 21 and the second window 22. Specifically, the first window 21 and the second window 22 are arranged at intervals in the up-down direction, and the first window 21 is disposed at the lower side and is used for projecting horizontal laser lines, the second window 22 has a plurality and is used for projecting vertical laser lines, and the laser projector 100 can project the horizontal laser lines and/or the vertical laser lines at the same time.

In this embodiment, the laser generating unit 4, the switching unit 5 and the functional unit 7 are all connected to the control unit, and specifically, the switching unit 5 is a switching element in the form of a knob and has a first opened position and a second closed position, and a user can switch between the opened position and the closed position by rotating the knob. The functional module 7 includes a plurality of keys disposed on the top of the housing 3, and different keys can implement different functions, such as: according to the scene requirement, the brightness of the laser line projected by the laser generating component 4 is manually adjusted to achieve the balance of performance and endurance; or turn on or off the horizontal laser line and/or the vertical laser line depending on the needs of the application.

Referring to fig. 1 and 2, the housing 3 is generally cylindrical, the switch assembly 5 and the battery pack are located at two opposite sides of the housing 3, and the switch assembly 5 and the battery pack are both disposed near the base 2; the adjustment assembly 6 is used to drive the housing 3 and the laser generating assembly 4 to rotate together with respect to the base 2 to move the vertical laser line to a desired target position.

In this embodiment, the laser generating unit 4 includes a turntable 40 movably connected to the base 2, a support column 41 connected to the upper side of the base 2, a base 42 supported on the top of the support column 41, a pendulum 43 movably connected to the base 42, and lasers 44 mounted on the pendulum 43, wherein the support column 41 has a plurality of support columns and is uniformly distributed on the entire outer peripheral surface of the turntable 40; the pendulum 43 can deflect relative to the support column 41, so that the pendulum 43 moves relatively in the housing 3, and the laser projector 100 can work normally on uneven working surfaces.

Specifically, the turntable 40 includes a channel 401 extending through the middle, and the lower end of the pendulum 43 extends into the channel 401, so that the pendulum 43 moves in an area defined by the channel 401.

In the present embodiment, the laser 44 includes a first laser 441 for emitting horizontal laser lines and a second laser 442 for emitting vertical laser lines, where the first laser 441 has one, and the second laser 442 has a plurality of lasers and is distributed at intervals on the periphery of the pendulum 43, and the second laser 442 is located on the upper side of the first laser 441 so that the emitted laser lines do not interfere with each other.

As shown in fig. 1, the first window 21 corresponds to the first laser 441, the second window 22 corresponds to the second laser 442, and the number and positions of the first window 21 and the second window 22 correspond to the number and positions of the first laser 441 and the second laser 442, respectively, so that the laser line generated by the laser 44 is projected outside the housing 3 through the windows.

As shown in connection with fig. 3 and 4, the foot assembly 1 is used for supporting a body on the one hand and for levelling on the other hand. Specifically, the anchor assembly 1 has a threaded rod 11 mounted at the lower end of the main body, an anchor 12 sleeved on the periphery of the threaded rod 11, and an elastic element 13 sleeved on the threaded rod 11, one end of the threaded rod 11 is fixedly connected to the base 2, the other end is in threaded connection with the anchor 2, and the distance between the main body and the workbench can be adjusted by rotating the anchor 2.

In the present embodiment, the anchor 12 includes a leg 121 connected to the threaded rod 11, a screw portion 122 and a receiving portion 123 formed in the leg 121, and at least one connector 124 mounted in the leg 121, and the screw portion 122 and the receiving portion 123 are used to mount the threaded rod 11. Specifically, the inner diameter of the receiving portion 123 is larger than the inner diameter of the threaded portion 122.

The threaded rod 11 has a rod body 111 screwed to the threaded portion 122 and a step 112 protruding radially outward from a lower end portion of the rod body 111, the step 112 is accommodated in the accommodating portion 123, and a diameter of the step 112 is larger than an inner diameter of the threaded portion 122, so that the anchor 12 is not dropped even if the anchor 12 is screwed to a zero position (the zero position here means that the anchor 12 cannot be unscrewed continuously and the elastic element 13 is in a compressed state), thereby preventing the anchor 12 from being lost; meanwhile, the pretightening force of the elastic element can effectively reduce the shaking quantity caused by the gap between the ground leg 12 and the threaded rod 11.

Specifically, the anchor 12 is in a half structure, and is composed of a first anchor 12a and a second anchor 12b, and the connecting piece 124 is connected between the first anchor 12a and the second anchor 12b, so that the two anchors are connected into a whole in a snap fit manner, and the anchor can be disassembled without tools, and is simple to assemble and convenient to operate. Preferably, the connecting members 124 are disposed on either side of the threaded portion 122 and the receiving portion 123, so as not to interfere with the operational experience of leveling the rotary anchor 12.

In this embodiment, the connecting member 124 may be a pin, and the anchor 12 includes a plurality of first locking grooves 126 recessed inward from an end surface of the first anchor 12a and a plurality of second locking grooves 125 recessed inward from the second anchor 12b, wherein one end of the pin is inserted into the first locking grooves 126, and the other end is inserted into the second locking grooves 125.

In this embodiment, the connecting member 124 may also be a plurality of protrusions protruding outwards from the end surface of the first anchor 12a, where the protrusions on the first anchor 12a are inserted into the clamping grooves 125 on the second anchor 12b,

according to the utility model, the threaded part 122 and the accommodating part 123 are arranged in the foundation 12, the step 112 of the threaded rod 11 is arranged in the accommodating part 123, and the diameter of the step 112 is larger than the inner diameter of the threaded part 122, so that the foundation 12 cannot fall off even if the foundation 12 is in a state of no unscrewing any more, and the man-machine interaction is friendly; in addition, the anchor 12 is integrally connected by the first anchor 12a and the second anchor 12b in a buckling manner, so that the assembly is convenient, and the leveling operation is not affected.

The present utility model is not limited to the above-described embodiments. Those of ordinary skill in the art will readily appreciate that many other alternatives to the laser router of the present utility model are possible without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.

Claims

1. The laser demarcation device comprises a main body and a ground pin assembly connected with the main body, wherein the ground pin assembly is provided with a threaded rod arranged at the lower end of the main body and a ground pin sleeved on the periphery of the threaded rod, and the ground pin supports the main body; the method is characterized in that: the lower end of the lower rod body is provided with a threaded rod body, the lower end of the threaded rod body is provided with a threaded rod body, the threaded rod body is provided with a supporting leg connected with the threaded rod body, the threaded rod body is formed in the supporting leg, the threaded rod body is provided with a containing portion, the containing portion is connected with the threaded rod body, the threaded rod body is provided with a step protruding outwards in the radial direction, and the diameter of the step is larger than the inner diameter of the threaded rod body.

2. The laser demarcation device of claim 1, wherein: the lower margin has first lower margin and second lower margin, first lower margin with second lower margin buckle is connected.

3. The laser line projector of claim 2, wherein: the foot has at least one connecting piece of installing in the supporting leg, the connecting piece connect in between first foot with the second foot.

4. A laser line projector as claimed in claim 3, wherein: the connecting piece is a plurality of bulges protruding outwards from the end face of the first ground leg.

5. The laser demarcation device of claim 4, wherein: the lower margin is provided with a plurality of second clamping grooves which are inwards sunken from the end face of the second lower margin, and the connecting piece is inserted into the clamping grooves.

6. A laser line projector as claimed in claim 3, wherein: the lower margin is provided with a plurality of first clamping grooves which are inwards sunken from the end face of the first lower margin and a plurality of second clamping grooves which are inwards sunken from the second lower margin, one end of the connecting piece is inserted into the first clamping grooves, and the other end of the connecting piece is inserted into the second clamping grooves.

7. The laser line projector of claim 5, wherein: the number of the connecting pieces is the same as that of the second clamping grooves.

8. The laser line projector of claim 6, wherein: the number of the connecting pieces, the number of the first clamping grooves and the number of the second clamping grooves are the same.

9. The laser line projector of claim 2, wherein: one end of the threaded rod is fixed on the main body, and the other end of the threaded rod is connected with the foundation in a threaded mode.

10. The laser line projector of claim 9, wherein: the lower margin assembly is provided with an elastic element sleeved on the threaded rod, one end of the elastic element is abutted to the step, and the other end of the elastic element is abutted to the accommodating part.