Adsorption type demarcation device

Abstract

The invention discloses an adsorption type demarcation device which comprises a demarcation device body used for emitting linear light and a fixing seat used for fixing the demarcation device body, the fixing seat is provided with a fixing part and an adsorption part, the demarcation device body is installed on the fixing part, the adsorption part is provided with an inwards-concave adsorption cavity, and the adsorption part is provided with an adsorption cavity. And the adsorption cavity and the mounting surface form a closed space. In the invention, the demarcation device body is mounted on the fixing part of the fixing seat, the adsorption part of the fixing part is provided with the adsorption cavity, the adsorption cavity and the mounting surface form the closed space, and the adsorption of the adsorption part and the mounting surface is realized by exhausting the air in the closed space, so that the demarcation device is fixed on the corresponding adsorption surfaces such as a wall surface and a wood board surface; and the problems in the prior art are effectively solved.

Description

Technical Field

[0001] The invention relates to an adsorption type line casting instrument. Background Art

[0002] Laser level, also known as laser level, is a hardware decoration tool. In civil engineering, laser level is often used to measure the reference line. It is widely used because of its simple and quick operation. However, it also has the following disadvantages: when using the existing laser level, it must be fixed on the reference plane first, so it is necessary to select a fixing that matches the material of the reference plane; for example, if the reference plane is an ordinary wall or a wooden material surface, nails of different sizes are used as fixings; if the reference plane is a tile or glass, a suction cup is used as a fixing; if the reference plane is an iron material, a magnet-type fixing must be used. Although the above-mentioned different fixings can solve the problem of fixing the laser level on reference planes of various materials, it is inconvenient to use because there are many types of accessories and they are not universal; for this reason, the existing laser level should be equipped with a set of fixings that can be used for different reference planes, so it is very cumbersome and costly. Summary of the invention

[0003] The purpose of the present invention is to provide an adsorption type line casting instrument.

[0004] In order to solve the above problems, the present invention provides an adsorption-type line-casting instrument, including a line-casting instrument body for emitting straight line light and a fixing seat for fixing the line-casting instrument body, the fixing seat is provided with a fixing part and an adsorption part, the line-casting instrument body is installed on the fixing part, the adsorption part is provided with a concave adsorption cavity, the adsorption cavity and the mounting surface form a closed space, and the adsorption of the adsorption part and the mounting surface is achieved by evacuating the closed space.

[0005] As a further improvement of the present invention, the adsorption part comprises a shell and an inner cavity located in the shell, the inner cavity and the adsorption cavity are separated by an outer wall of the shell, and the inner cavity is provided with:

[0006] Vacuum suction device;

[0007] An air suction pipe connected to the vacuum suction device, the other end of which is connected to an air suction hole connected to the adsorption chamber;

[0008] An air leakage hole connecting the adsorption cavity and the inner cavity;

[0009] A sealing block is used to open or seal the air leakage hole.

[0010] As a further improvement of the present invention,

[0011] The inner cavity is also provided with a sliding block fixedly connected to the sealing block;

[0012] The shell surface is provided with a through hole communicating with the inner cavity;

[0013] The sliding block can slide along the axial direction of the air leakage hole, and the free end of the sliding block can at least partially extend out of the through hole.

[0014] As a further improvement of the present invention, a slide groove is provided in the inner cavity to accommodate the sliding block sliding therein, and the sliding direction thereof is parallel to the axis of the air leakage hole. The sliding block includes a pressing portion, a sliding portion, and a movable portion, wherein:

[0015] The pressing portion is connected to the first end portion of the sliding portion and partially extends out of the through hole;

[0016] The sealing block is protruded away from the first end and points to the first end, and the air leakage hole is located between the sealing block and the first end;

[0017] The sliding portion can slide in the sliding groove;

[0018] The movable portion is connected to the second end portion of the sliding portion.

[0019] As a further improvement of the present invention, a stopper is further provided in the inner cavity, and a distance is provided between the stopper and the free end of the sliding part, and the distance is used to place an elastic element, and the two ends of the elastic element respectively abut against the stopper and the free end of the sliding part.

[0020] As a further improvement of the present invention, an air pressure sensor electrically connected to the vacuum suction device is also provided in the inner cavity, and the air pressure sensor at least partially penetrates into the adsorption cavity and can measure the air pressure value in the adsorption cavity.

[0021] As a further improvement of the present invention, the fixing part is horizontally arranged, the adsorption part is vertically arranged, and the ends of the two are connected to form an "L"-shaped structure. A mounting hole is arranged on the upper surface of the fixing part, and the line-casting instrument body is provided with a mounting body that can be inserted into the mounting hole, and the mounting body extends out from the bottom of the line-casting instrument body.

[0022] As a further improvement of the present invention, the mounting body is a cylindrical structure, and at least one buffer sleeve is provided on its surface. The buffer sleeve is an annular structure, and its outer circumferential surface is in contact with the hole wall of the mounting hole, and its inner circumferential surface is in contact with the outer surface of the mounting body. The friction between the buffer sleeve, the mounting body and the mounting hole generates damping that limits or partially limits the relative rotation of the three.

[0023] As a further improvement of the present invention, the buffer sleeve is a butterfly spring.

[0024] As a further improvement of the present invention, the vacuum suction device is a vacuum pump, and the elastic element is a spring.

[0025] The beneficial effect of the present invention lies in that, in the present invention, the line-casting instrument body is installed on the fixed part of the fixed seat, and the adsorption part of the fixed part is provided with an adsorption cavity, the adsorption cavity and the installation surface constitute a closed space, and the adsorption of the adsorption part and the installation surface is achieved by evacuating the closed space, thereby achieving the fixing of the line-casting instrument to the corresponding adsorption surface such as the wall surface, the wooden board surface, etc., effectively solving the problems encountered in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a schematic diagram of the decomposition of part of the structure of the present invention;

[0028] Figure 3 yes Figure 1 Schematic diagram of the exploded view of the middle fixing seat;

[0029] Figure 4 yes Figure 1 A schematic diagram of the structure of the middle fixed seat;

[0030] Figure 5 It is a schematic diagram of the structure inside the adsorption part;

[0031] Figure 6 This is a cross-sectional view of the interior of the adsorption unit.

[0032] In the figure: 100-line casting instrument body; 101-mounting body; 103-buffer sleeve; 200-fixed seat; 201-shell; 202-adsorption part; 203-fixing part; 204-adsorption chamber; 206-vacuum suction device; 208-suction pipe; 210-air leakage hole; 212-sealing block; 214-sliding block; 216-slide groove; 218-pressing part; 219-sliding part; 220-movable part; 224-stop block; 226-elastic element; 228-mounting hole. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] Embodiment 1

[0035] like Figure 3-4The adsorption-type line projection device of this embodiment includes a line projection device body 100 for emitting straight line light and a fixing seat 200 for fixing the line projection device body 100. The fixing seat 200 is provided with a fixing portion 203 and an adsorption portion 202. The line projection device body 100 is installed on the fixing portion 203. The adsorption portion 202 is provided with a concave adsorption cavity 204. The adsorption cavity 204 and the mounting surface form a closed space, and the adsorption of the adsorption portion 202 and the mounting surface is achieved by evacuating the closed space.

[0036] In this embodiment, a hollow inner cavity and an adsorption portion 202 located on the side of the shell 201 are provided in the shell 201. Of course, a bottom may also be provided. The adsorption portion 202 has a concave adsorption chamber 204, wherein the inner cavity and the adsorption chamber 204 are separated by the outer wall of the shell 201. A vacuum suction device 206, an air suction pipe 208, an air leakage hole 210 and a sealing block 212 are provided in the inner cavity. The vacuum suction device 206 is a vacuum pump and is connected to the air suction pipe 208. The other end of the air suction pipe 208 is connected to the air suction hole connected to the adsorption chamber 204. The air leakage hole 210 is provided between the adsorption chamber 204 and the inner cavity, and is opened or closed by the sealing block 212. In this embodiment, the laser is mounted on a shell 201, and an adsorption portion 202 of the shell 201 is formed with an adsorption cavity 204. The adsorption cavity 204 and a wall or other adsorption surface form a closed cavity. The adsorption cavity 204 is evacuated by a vacuum pump to generate a negative pressure in the closed cavity, thereby adsorbing the shell 201 and the laser on the wall or adsorption surface. If the shell 201 needs to be separated from the adsorption surface, the air vent 210 is opened by the sealing block 212 to restore the normal atmospheric pressure in the adsorption cavity 204. The device has a simple structure and is easy to operate, and effectively solves the problems encountered in the prior art.

[0037] Embodiment 2

[0038] like Figure 5-6 In this embodiment, a sliding block 214 fixedly connected to the sealing block 212 is also provided in the inner cavity; a through hole communicating with the inner cavity is provided on the surface of the housing 201; and the sliding block 214 can slide along the axial direction of the air leakage hole 210. The sliding block 214 includes a pressing portion 218, a sliding portion 219, and a movable portion 220, wherein the pressing portion 218 is connected to the first end of the sliding portion 219 and partially extends out of the through hole, the sealing block 212 is protruded away from the first end and pointed to the direction of the first end, the air leakage hole 210 is located between the sealing block 212 and the first end, the sliding portion 219 can slide in the slide groove 216 in the inner cavity, and the movable portion 220 is connected to the second end of the sliding portion 219.

[0039] A stopper 224 is also provided in the inner cavity, and a distance is provided between the stopper 224 and the free end of the movable part 220, and the distance is used to place an elastic element 226, which is usually a spring. The two ends of the elastic element 226 respectively abut against the stopper 224 and the free end of the movable part 220.

[0040] In this embodiment, by pressing the pressing part 218 (which can be set as a button structure) downward outside the shell 201, the entire sliding block 214 drives the sealing block 212 to move downward, so that the sealing block 212 is separated from the air leakage hole 210. At this time, the air leakage hole 210 connects the adsorption chamber 204 and the inner cavity of the shell 201, so that the air pressure in the two chambers tends to atmospheric pressure, thereby achieving the purpose of pressure relief of the adsorption chamber 204; when the pressing part 218 is released, under the action of the elastic element 226 (spring), the entire sliding part 219 moves upward, so that the sealing block 212 is pressed against the air leakage hole 210, and the adsorption chamber 204 and the inner cavity of the shell 201 are separated, so that the adsorption chamber 204 can be vacuumed separately. The air pressure value in the adsorption chamber 204 is controlled by the air pressure sensor. When the air pressure sensor detects that the air pressure in the adsorption chamber 204 does not reach the set value, the vacuum pump is controlled to continue working until the air pressure reaches the set value.

[0041] Embodiment 3

[0042] like Figure 1-2 In this embodiment, the fixing part 203 is arranged horizontally, and the adsorption part 202 is arranged vertically. The ends of the two parts are connected to form an "L"-shaped structure. The upper surface of the fixing part 203 is provided with a mounting hole 228. The line casting instrument body 100 is provided with a mounting body 101 that can be inserted into the mounting hole 228. The mounting body 101 extends out of the line casting instrument body 100 from the bottom. The mounting body 101 is a cylindrical structure, and at least one buffer sleeve 103 (generally two) is provided on its surface. The buffer sleeve 103 is an annular structure, and its outer circumference is attached to the hole wall of the mounting hole 228, and its inner circumference is attached to the outer surface of the mounting body. The friction between the buffer sleeve 103, the mounting body 101 and the mounting hole 228 generates damping that limits or partially limits the relative rotation of the three. The buffer sleeve 103 can adopt a butterfly spring.

[0043] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. An adsorption type line casting instrument, characterized in that: The invention comprises a line projector body (100) for emitting linear light and a fixing seat (200) for fixing the line projector body (100); the fixing seat (200) is provided with a fixing portion (203) and an adsorption portion (202); the line projector body (100) is mounted on the fixing portion (203); the adsorption portion (202) is provided with an inwardly concave adsorption cavity (204); the adsorption cavity (204) and the mounting surface form a closed space; and the adsorption of the adsorption portion (202) and the mounting surface is achieved by evacuating the closed space.

2. The adsorption type line casting instrument according to claim 1, characterized in that: The adsorption part (202) comprises a shell (201) and an inner cavity located in the shell (201), wherein the inner cavity and the adsorption cavity (204) are separated by the outer wall of the shell (201), and the inner cavity is provided with: Vacuum suction device (206); an air suction pipe (208) connected to the vacuum suction device (206), the other end of the air suction pipe (208) being connected to an air suction hole connected to the adsorption chamber (204); An air leakage hole (210) connecting the adsorption cavity (204) and the inner cavity; A sealing block (212) is used to open or seal the air leakage hole (210).

3. The adsorption type line casting instrument according to claim 1, characterized in that: The inner cavity is also provided with a sliding block (214) fixedly connected to the sealing block (212); The surface of the shell (201) is provided with a through hole communicating with the inner cavity; The sliding block (214) can slide along the axial direction of the air leakage hole (210), and the free end of the sliding block (214) can at least partially extend outside the through hole.

4. The adsorption type line casting instrument according to claim 1, characterized in that: The inner cavity is provided with a sliding groove (216) for accommodating the sliding block (214) to slide therein, and the sliding direction thereof is parallel to the axis of the air leakage hole (210). The sliding block (214) comprises a pressing portion (218), a sliding portion (219), and a movable portion (220), wherein: The pressing portion (218) is connected to the first end portion of the sliding portion (219) and partially extends out of the through hole; The sealing block (212) is protrudingly arranged away from the first end and pointing in the direction of the first end, and the air leakage hole (210) is located between the sealing block (212) and the first end; The sliding portion (219) is capable of sliding in the sliding groove (216); The movable portion (220) is connected to the second end portion of the sliding portion (219).

5. The adsorption type line casting instrument according to claim 1, characterized in that: A stopper (224) is also provided in the inner cavity, and a distance is provided between the stopper (224) and the free end of the sliding portion (220), and the distance is used to place an elastic element (226), and the two ends of the elastic element (226) respectively abut against the stopper (224) and the free end of the sliding portion (220).

6. The adsorption type line casting instrument according to claim 5, characterized in that: The inner cavity is also provided with an air pressure sensor electrically connected to the vacuum suction device (206); the air pressure sensor at least partially penetrates into the adsorption cavity (204) and is capable of measuring the air pressure value in the adsorption cavity (204).

7. The adsorption type line casting instrument according to claim 6, characterized in that: The fixing portion (203) is arranged horizontally, and the adsorption portion (202) is arranged vertically, and the ends of the two are connected to form an "L"-shaped structure. The upper surface of the fixing portion (203) is provided with a mounting hole (228), and the line-casting instrument body (100) is provided with a mounting body (101) that can be inserted into the mounting hole (228), and the mounting body (101) extends out of the line-casting instrument body (100) from below.

8. The adsorption type line casting instrument according to claim 7, characterized in that: The mounting body (101) is a cylindrical structure, and at least one buffer sleeve (103) is sleeved on its surface. The buffer sleeve (103) is an annular structure, and its outer circumferential surface is in contact with the hole wall of the mounting hole (228), and its inner circumferential surface is in contact with the outer surface of the mounting body. The friction between the buffer sleeve (103), the mounting body (101) and the mounting hole (228) generates damping that limits or partially limits the relative rotation of the three.

9. The adsorption type line casting instrument according to claim 8, characterized in that: The buffer sleeve (103) is a butterfly spring.

10. The adsorption type line casting instrument according to claim 8, characterized in that: The vacuum suction device (206) is a vacuum pump, and the elastic element (226) is a spring.

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