CN201059975Y - level ruler - Google Patents

Abstract

The utility model provides a spirit level, which can be easily disassembled between the water bubble cover plate and the level shell, and will not damage the water bubble cover plate or the shell. The spirit level provided by the utility model comprises a casing, at least one blister installed in the casing, the casing has a plane for measuring a measured surface, the casing also has at least one blister cover installation hole, at least one blister cover The board is correspondingly installed in at least one installation hole, and a spacer is detachably installed between the cover board and the shell.

Description

level ruler

technical field

The utility model relates to a level, in particular to a level with a repeatedly detachable blister decorative cover.

Background technique

Existing level shells are equipped with water bubbles indicating horizontal or vertical directions, such as the level disclosed in US Patent No. 4,073,062. For the sake of aesthetics or fixing the blister or the blister assembly, a blister cover is usually installed on the housing at a position corresponding to the blister or the blister assembly. Each blister cover plate in US Patent No. 4,073,062 is installed and fixed on the spirit level shell by four screws, and dismounting is troublesome. At present, after the cover plate is installed on the shell, glue is directly placed between the cover plate and the shell of the spirit level to fix it on the shell. Although such a fixing method is simple and firm, it is not easy to disassemble, or the cover plate and the shell are easily damaged during disassembly, which is not conducive to repairing, replacing and readjusting the water bubble or the water bubble assembly of the spirit level.

Contents of the invention

The purpose of this utility model is to provide such a spirit level, which can be easily disassembled between the blister cover plate and the level shell, and will not damage the blister cover plate or the shell.

In order to achieve the above object, the spirit level provided by the utility model comprises a casing, at least one blister installed in the casing, the casing has a plane for measuring a measured surface, and the casing also has at least one blister cover installation hole , at least one blister cover is correspondingly installed in at least one installation hole, and a gasket is detachably installed between the cover and the shell.

The cover plate of the spirit level of the utility model has a cover part exposed outside the casing and a mounting part matched with the mounting hole.

Furthermore, the gasket is made of elastic material, generally in the shape of a sheet with two sides, and is installed between the cover plate and the inner wall of the casing.

The mounting part has at least one blocking piece protruding from the mounting portion, and when the cover plate is mounted on the level shell, the blocking piece is located inside the casing. At least one of the protruding portions of the spacer is located between the inner wall of the housing and the baffle of the cover plate.

By installing a detachable gasket between the blister cover and the level shell, when the level needs repairing or other similar situations and the blister cover must be disassembled, it is only necessary to apply a certain pulling force to pull the gasket out. There is a certain gap between the cover plate and the inner wall of the shell, which makes the cover plate loose naturally, so that the blister cover plate can be easily disassembled. In addition, the fixed structure of the blister cover is not only easy to disassemble, but also does not damage each component, and is also very easy to reassemble.

Description of drawings:

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model will be further described.

Fig. 1 is a front view of a level housing in a preferred embodiment of the present invention.

FIG. 2 is a perspective view of a blister cover mountable on the spirit level housing shown in FIG. 1 .

Fig. 3 is a perspective view of a gasket paired with the blister cover shown in Fig. 2 .

Fig. 4 is a partial perspective view of the cover plate shown in Fig. 2 and the spacer shown in Fig. 3 installed on the level shell.

Detailed ways:

As shown in Figures 1 to 4, a spirit level in a preferred embodiment of the present invention comprises a housing 1 with a measuring plane 2 for contacting the surface to be measured. The casing 1 has at least one blister cover mounting hole 3 . In the housing 1, a water bubble (not shown in the figure) that can indicate whether the measuring surface 2 is horizontal or vertical is installed at a position corresponding to the mounting hole 2 .

The blister cover plate 4 in this real-time mode is annular and has a cover part 41 and a mounting part 42 . The mounting part 42 has an outer peripheral surface 43 and four blocking pieces 44 distributed on the outer peripheral surface 43 and extending outward along the radial direction of the circumference. Correspondingly, the mounting hole 3 on the casing is substantially circular, and its radius is approximately equal to the radius of the outer circumferential surface 43 of the cover mounting portion 42 , and has four notches 31 corresponding to the blocking pieces 44 . In other embodiments, the cover plate can be designed in other shapes or structures, the mounting portion of the cover plate and the mounting hole on the housing can also be of other suitable shapes and structures, and the cover plate stopper and the mounting hole notch can also be designed Design other suitable numbers.

The gasket 5 is a C-shaped plate with two sides and a peripheral surface. One of the side surfaces 51 has two gradually rising protrusions 54 . Preferably, the spacer 5 is made of an elastic material that can elastically deform to a certain extent when subjected to an external force, such as ABS engineering plastics or other suitable materials.

When the cover plate 4 is mounted on the shell 1 through the mounting hole 3, the cover portion 41 of the cover plate 4 is exposed outside the shell 1 and covers the mounting hole 3, and a part of the mounting portion 42 is located inside the shell 1, and a part of the cover portion 42 is located inside the shell. There remains a slight gap between the sheet 44 and the inner wall 11 of the housing. When no external force is applied, the thickness of the raised portion 54 of the gasket is slightly larger than this gap. Next, insert the gasket 5 from the side of the cover plate 4 between the inner wall 11 of the housing and the cover plate stopper 44 and apply a certain thrust until the protruding portion 54 of the gasket is stuck under the two stoppers 44 . In this case, the protruding portion of the gasket is squeezed between the blocking piece of the cover plate and the inner wall of the shell of the level, so that the protruding portion of the washer is elastically deformed, thereby firmly fixing the cover plate on the shell of the level. And when the cover plate 4 needs to be disassembled from the level shell 1, only the elastic gasket 5 needs to be pulled out with a tool, and the cover plate will become loose due to the existence of the gap, so that the cover plate can be easily taken out from the shell , so as to achieve the purpose of disassembly.

The text description and drawings of the above-mentioned preferred embodiment are only to illustrate and describe the content of the utility model, but not to limit the protection scope of the utility model. Those of ordinary skill in the art can easily think of other modifications and alternatives to the level involved in the utility model without departing from the spirit and scope of the utility model. The protection scope of the utility model is determined by the claims.

Claims (10)

1. A spirit level comprising a casing, at least one blister installed in the casing, the casing has a plane measuring a measured surface, the casing has at least one blister cover mounting hole, at least one blister cover The board is correspondingly installed in the at least one installation hole, and it is characterized in that a spacer is detachably installed between the cover board and the housing. 2. The spirit level according to claim 1, wherein the cover plate has a cover portion exposed outside the housing and a mounting portion fitted with the mounting hole. 3. The spirit level according to claim 2, wherein the pad is made of elastic material. 4. The spirit level according to claim 3, wherein the spacer is generally sheet-shaped with two sides, and the spacer is mounted between the cover plate and the inner wall of the housing. 5. The level as claimed in claim 4, wherein said spacer has at least one protrusion on one side thereof. 6. The level according to claim 5, wherein the protruding portion is gradually protruding. 7. The spirit level according to any one of claims 5 and 6, wherein the mounting portion of the cover plate has at least one catch piece protruding from the mounting portion, when the cover plate is mounted on the When the housing is on, the blocking piece is located inside the housing. 8. The spirit level of claim 7, wherein at least one of the raised portions of the gasket is located on the Between the inner wall of the housing and the baffle of the cover. 9. The level as claimed in claim 8, wherein the thickness of the protruding portion of the washer is greater than the gap between the cover plate stopper and the inner wall of the housing under the condition that the protruding portion of the gasket is not stressed. 10. The spirit level according to claim 9, wherein the mounting hole has a notch corresponding to the blocking piece of the cover plate.

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