Leveling bubble fixing structure of leveling instrument
By using a rectangular box structure for the outer base and the bubble seat on the spirit level, the problem of unstable bubble installation was solved, achieving higher stability and adaptability, and simplifying the installation and adjustment process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-07
AI Technical Summary
The existing leveling bubble installation structure is not reasonable enough, resulting in poor stability and reliability, difficulty in adapting to deviations in the leveling body size, and inconvenience in installation and adjustment.
The outer base, which adopts a rectangular box structure, is designed with guide slopes and glue leakage deformation openings. Combined with glue fixation, the outer base and the ruler form a stable glue layer. It also adapts to the size deviation of the ruler through elastic deformation. At the same time, a bubble seat is set to facilitate the adjustment of the bubble position.
It improves the installation stability and reliability of the bubble level, better adapts to deviations in the scale size, and simplifies the installation and adjustment process.
Smart Images

Figure CN224095159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spirit level technology, and in particular to a spirit level bubble fixing structure. Background Technology
[0002] A spirit level is a measuring instrument that uses the principle of a level liquid surface to directly display angular displacement with a bubble level, measuring the degree of deviation of the measured surface from its horizontal, vertical, and tilted positions. This type of spirit level can be used for both short-distance and long-distance measurements, overcoming the shortcomings of existing levels which can only measure in open areas and are difficult to use in narrow places. It is also accurate, inexpensive, portable, and economical.
[0003] A spirit level typically consists of a spirit level body and a level bubble mounted on the spirit level body. However, the existing structure's mounting section between the spirit level body and the level bubble is poorly designed, resulting in the following drawbacks: 1. Inconvenient or insufficient glue application, leading to poor stability and reliability of the level bubble after installation; 2. The level bubble cannot adequately accommodate dimensional deviations of the spirit level body when installed; 3. Inconvenient adjustment of the level bubble after installation.
[0004] Therefore, how to provide a leveling bubble fixing structure with a simpler and more reasonable structural design that can improve the stability and reliability of the leveling bubble installation, better adapt to the deviation of the leveling scale size, and make it easier to install and adjust has become a technical problem that needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by this utility model is how to provide a level bubble fixing structure with a simpler and more reasonable structural design, which can improve the stability and reliability of the level bubble installation, better adapt to the deviation of the ruler size, and make it more convenient to install and adjust.
[0006] To achieve the above objectives, this utility model provides a leveling bubble fixing structure, including a level body and a leveling bubble mounted on the level body via an installation structure; the installation structure includes an outer seat mounted on the level body, characterized in that; the outer seat includes a mounting shell with a rectangular box-like structure at its lower end, which is inserted into the level body; each end of the bottom surface of the mounting shell has a protrusion, and protruding teeth are arranged side by side on the protrusion; and each side of the mounting shell has a strip-shaped glue-leaking deformation port corresponding to the protrusion; a glue-injection port is provided at the middle of the surface of the mounting shell; and an arched part is formed on the bottom surface inside the mounting shell corresponding to the glue-injection port, with guide slopes forming on both sides of the arched part, such that the lower ends of the guide slopes are connected to the inner ends of the glue-leaking deformation ports.
[0007] In this way, in the aforementioned leveling bubble fixing structure, when the outer seat is installed into the leveling body, the glue injected from the glue inlet can be diverted to both sides through the two guide bevels and can flow out from the glue leakage deformation port to below the protruding teeth, so that a glue layer is formed between the protruding teeth (serrations) and the leveling body. After the glue cures, the outer seat and the leveling body are completely fixed, making the assembly between the outer seat and the leveling body more stable and reliable. Furthermore, the synergistic effect of the protruding teeth and the glue leakage deformation port allows the outer seat to achieve elastic deformation, which can adapt to the deviation of the internal cavity dimensions of the leveling body profile.
[0008] As an optimization, a transversely penetrating triangular notch is provided at the middle position of the inner end of the mounting shell, and the mounting shell includes a bottom plate at the lower end, the bottom plate includes horizontal sections at both ends, and also includes a bottom plate bending section that is connected between the two bottom plate horizontal sections and has an overall V-shaped structure design, so that the inner surface of the bottom plate bending section forms the guide slope; and each of the bottom plate horizontal sections is provided with the protrusion.
[0009] In this way, the structural design of the mounting shell is simpler and more reasonable, and it can better form guide ramps and protrusions on the base plate.
[0010] As an optimization, the mounting shell also includes side plates on both sides, and the outer surface of each side plate has a wave-shaped curved surface design so that a gap is formed between the outer surface of the side plate and the inner surface of the ruler.
[0011] In this way, by designing the outer surface of the side plate with a wavy curved structure, a gap is formed between the outer surface of the side plate and the inner surface of the ruler after glue injection, which can further improve the stability after the outer seat is installed.
[0012] As an optimization, the mounting shell has an open design at both ends, and a reinforcing plate is provided at the vertical center of the mounting shell. A clearance opening is provided on the reinforcing plate at the position directly opposite the glue injection port.
[0013] This results in better structural strength for the mounting shell.
[0014] Furthermore, the size of the clearance opening is designed to be larger than the size of the injection port.
[0015] As an optimization, the outer base also includes a support shell with an overall rectangular box structure and an open design at the top. Each end of the support shell is provided with a positioning strip that protrudes outward, so that after the outer base is installed in the mounting port on the ruler, the positioning strip can be engaged with the inside of the mounting port on the ruler to prevent the outer base from falling out of the mounting port on the ruler.
[0016] In this way, when the outer seat is installed on the ruler body, the positioning clips at both ends of the support shell are fastened to the inside of the mounting opening on the ruler body, which can better prevent the outer seat from coming out.
[0017] As an optimization, the installation structure also includes a bubble seat installed inside the support shell, on which the level bubble is installed; and on both sides of the bottom surface inside the support shell, there are upwardly protruding fulcrum blocks, so that after the bubble seat is installed in the support shell, the bubble seat can swing along the fulcrum blocks and adjust the horizontal position of the level bubble inside the bubble seat.
[0018] In this way, by setting a bubble seat inside the support shell at the upper end of the outer base, and then installing a spirit level inside the bubble seat, the structural design is more reasonable. Furthermore, by adjusting the bubble seat, the bubble seat can swing along the fulcrum block inside the support shell, thus adjusting the horizontal position of the spirit level inside the bubble seat.
[0019] As an optimization, the bubble seat includes a horizontally arranged bubble seat plate, with each end of the bubble seat plate bent upward to form a bubble side plate. The upper end of the bubble side plate is inclined and bent downward to form a barb, so that the barb can abut and support the upper side of the level bubble.
[0020] This makes the structure of the bubble holder simpler and makes it easier to assemble the bubble into the bubble holder.
[0021] Furthermore, each end of the upper surface of the spirit level has a corresponding barb with a mating protrusion, and the mating protrusion can mate with the barb.
[0022] As an optimization, a horizontally through-hole disassembly groove is provided in the middle of the inner surface of the bubble seat plate.
[0023] This design includes a disassembly / reassembly slot, making disassembly and assembly more convenient.
[0024] As an optimization, the support shell includes side support plates on both sides, each with a U-shaped notch; the support shell also includes support end plates at both ends, each with a vertically arranged opening slot on its inner side.
[0025] This makes the design of the support shell simpler and more reasonable.
[0026] In summary, the above-mentioned leveling bubble fixing structure has the advantages of simpler and more reasonable structural design, improved installation stability and reliability of the leveling bubble, better adaptability to deviations in the leveling scale size, and easier installation and adjustment. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the horizontal ruler and spirit level fixing structure in a specific embodiment of this utility model.
[0028] Figure 2 yes Figure 1 A schematic diagram showing the side of the ruler cut open.
[0029] Figure 3 yes Figure 1A schematic diagram of its breakdown.
[0030] Figure 4 yes Figure 1 A schematic diagram of the structure after removing the level bubble in the middle section.
[0031] Figure 5 yes Figure 1 The diagram only shows the structural schematics of the ruler body and the outer seat.
[0032] Figure 6 yes Figure 1 A schematic diagram of the structure of the outer seat.
[0033] Figure 7 yes Figure 6 A cross-sectional view.
[0034] Figure 8 This is a schematic diagram showing the bubble level after it has been assembled into the bubble holder. Detailed Implementation
[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] like Figures 1 to 8 As shown, a leveling ruler bubble fixing structure includes a ruler body 1 and a leveling bubble 2 installed on the ruler body via an installation structure. The installation structure includes an outer seat 3 installed on the ruler body. The outer seat includes a mounting shell 4 with a rectangular box-like structure at its lower end, which is inserted into the ruler body. Each end of the bottom surface of the mounting shell has a protrusion, and protruding teeth 5 are arranged side by side on the protrusion. Each side of the mounting shell has a long strip-shaped glue-leaking deformation port 6 corresponding to the protrusion. A glue-injection port 7 is provided in the middle of the surface of the mounting shell. The bottom surface inside the mounting shell, corresponding to the glue-injection port, arches upward to form an arched part. Each side of the arched part forms a guide slope 8, and the lower end of the guide slope connects to the inner end of the glue-leaking deformation port.
[0037] In this way, in the aforementioned leveling bubble fixing structure, when the outer seat is installed into the leveling body, the glue injected from the glue inlet can be diverted to both sides through the two guide bevels and can flow out from the glue leakage deformation port to below the protruding teeth, so that a glue layer is formed between the protruding teeth (serrations) and the leveling body. After the glue cures, the outer seat and the leveling body are completely fixed, making the assembly between the outer seat and the leveling body more stable and reliable. Furthermore, the synergistic effect of the protruding teeth and the glue leakage deformation port allows the outer seat to achieve elastic deformation, which can adapt to the deviation of the internal cavity dimensions of the leveling body profile.
[0038] In this specific embodiment, a transversely penetrating triangular notch 9 is provided at the middle position of the inner end of the mounting shell, and the mounting shell includes a bottom plate at the lower end, the bottom plate includes horizontal bottom plate sections 10 at both ends, and also includes a bottom plate bending section 11 that is connected between the two bottom plate horizontal sections and has an overall V-shaped structure design, such that the inner surface of the bottom plate bending section forms the guide slope; and each of the bottom plate horizontal sections is provided with the protrusion.
[0039] In this way, the structural design of the mounting shell is simpler and more reasonable, and it can better form guide ramps and protrusions on the base plate.
[0040] In this specific embodiment, the mounting shell also includes side plates 12 on both sides, and the outer surface of each side plate has a wavy curved surface design so that a gap is formed between the outer surface of the side plate and the inner surface of the ruler.
[0041] In this way, by designing the outer surface of the side plate with a wavy curved structure, a gap is formed between the outer surface of the side plate and the inner surface of the ruler after glue injection, which can further improve the stability after the outer seat is installed.
[0042] In this specific embodiment, the mounting shell has open ends, and a reinforcing plate 13 is provided at the vertical center of the mounting shell. A clearance opening 14 is provided on the reinforcing plate at a position directly opposite the glue injection port.
[0043] This results in better structural strength for the mounting shell.
[0044] Furthermore, the size of the clearance opening is designed to be larger than the size of the injection port.
[0045] In this specific embodiment, the outer base also includes a support shell 15 with an overall rectangular box structure and an open upper end. Each of the two ends of the support shell is provided with a positioning strip 16 that protrudes outward, so that after the outer base is installed in the mounting opening on the ruler, the positioning strip can be engaged with the inside of the mounting opening on the ruler to prevent the outer base from falling out of the mounting opening on the ruler.
[0046] In this way, when the outer seat is installed on the ruler body, the positioning clips at both ends of the support shell are fastened to the inside of the mounting opening on the ruler body, which can better prevent the outer seat from coming out.
[0047] In this specific embodiment, the installation structure further includes a bubble seat 17 installed inside the support shell, on which the level bubble is installed; and two upwardly protruding fulcrum blocks 18 are provided on both sides of the bottom surface inside the support shell, so that after the bubble seat is installed in the support shell, the bubble seat can swing along the fulcrum blocks and adjust the horizontal position of the level bubble inside the bubble seat.
[0048] In this way, by setting a bubble seat inside the support shell at the upper end of the outer base, and then installing a spirit level inside the bubble seat, the structural design is more reasonable. Furthermore, by adjusting the bubble seat, the bubble seat can swing along the fulcrum block inside the support shell, thus adjusting the horizontal position of the spirit level inside the bubble seat.
[0049] Furthermore, the lower ends of the bubble seat have rounded corners, and the area inside the support shell opposite the lower ends of the bubble seat is an arc-shaped surface with a gap between it and the lower ends of the bubble seat. This allows for an adjustable gap between the support shell and the bubble seat when rotating to adjust it, making the design more reasonable.
[0050] In this specific embodiment, the bubble seat includes a horizontally arranged bubble seat plate 19, with both ends of the bubble seat plate bent upward to form bubble side plates 20. The upper end of the bubble side plate is bent downward to form a barb 21, and the barb can abut and support the upper side of the level bubble.
[0051] This makes the structure of the bubble holder simpler and makes it easier to assemble the bubble into the bubble holder.
[0052] Furthermore, each end of the upper surface of the spirit level has a corresponding barb with a mating protrusion 22, and the mating protrusion can mate with the barb.
[0053] In this specific embodiment, a horizontally penetrating disassembly groove 23 is provided at the center of the inner surface of the water bubble seat plate.
[0054] This design includes a disassembly / reassembly slot, making disassembly and assembly more convenient.
[0055] In this specific embodiment, the support shell includes side support plates on both sides, each with a U-shaped notch; the support shell also includes support end plates at both ends, each with a vertically arranged opening slot 24 on its inner side.
[0056] This makes the design of the support shell simpler and more reasonable.
[0057] In summary, the above-mentioned leveling bubble fixing structure has the advantages of simpler and more reasonable structural design, improved installation stability and reliability of the leveling bubble, better adaptability to deviations in the leveling scale size, and easier installation and adjustment.
[0058] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A leveling ruler bubble fixing structure, comprising a ruler body and a leveling bubble mounted on the ruler body via a mounting structure; the mounting structure includes an outer seat mounted on the ruler body, characterized in that; The outer base includes a mounting shell with a rectangular box-like structure at the bottom, which is inserted into the body of the ruler. The bottom surface of the mounting shell has protrusions at both ends, and protruding teeth are arranged side by side on the protrusions. On both sides of the mounting shell, corresponding to the protrusions, there are strip-shaped glue leakage deformation ports. There is a glue injection port in the middle of the surface of the mounting shell. On the bottom surface inside the mounting shell, the position corresponding to the glue injection port is arched upward to form an arched part. On both sides of the arched part, there are guide slopes, and the lower ends of the guide slopes are connected to the inner ends of the glue leakage deformation ports.
2. The level ruler bubble fixing structure as described in claim 1, characterized in that; The mounting housing has a transversely penetrating triangular notch at the middle of its inner end. The mounting housing includes a bottom plate at the lower end, which includes horizontal sections at both ends and a bent section with a V-shaped structure that connects the two horizontal sections. The inner surface of the bent section forms the guide slope. Each horizontal section of the bottom plate has a protrusion.
3. The level ruler bubble fixing structure as described in claim 1, characterized in that; The mounting housing also includes side plates on both sides, and the outer surface of each side plate has a wavy curved surface design so that a gap is formed between the outer surface of the side plate and the inner surface of the ruler.
4. The level ruler bubble fixing structure as described in claim 1, characterized in that; The mounting housing has open ends and a reinforcing plate in the vertical middle. A clearance opening is provided on the reinforcing plate, which is directly opposite the glue injection port.
5. The level ruler bubble fixing structure as described in claim 1, characterized in that; The outer base also includes a support shell with an overall rectangular box structure and an open top. Each end of the support shell has a positioning strip that protrudes outward. After the outer base is installed in the mounting opening on the ruler, the positioning strip can engage with the inside of the mounting opening on the ruler to prevent the outer base from coming out of the mounting opening on the ruler.
6. The level ruler bubble fixing structure as described in claim 5, characterized in that; The installation structure also includes a bubble seat installed inside the support shell, on which the level bubble is installed; on both sides of the bottom surface inside the support shell, there are upwardly protruding fulcrum blocks, so that after the bubble seat is installed in the support shell, the bubble seat can swing along the fulcrum blocks and adjust the horizontal position of the level bubble inside the bubble seat.
7. The level ruler bubble fixing structure as described in claim 6, characterized in that; The bubble seat includes a horizontally arranged bubble seat plate, with each end of the bubble seat plate bent upward to form a bubble side plate. The upper end of the bubble side plate is bent downward at an angle to form a barb, which can abut and support the upper side of the level bubble.
8. The level ruler bubble fixing structure as described in claim 7, characterized in that... A horizontally penetrating disassembly groove is provided in the middle of the inner surface of the bubble seat plate.
9. The level ruler bubble fixing structure as described in claim 7, characterized in that; The support shell includes side support plates on both sides, each with a U-shaped notch; the support shell also includes support end plates at both ends, each with a vertically arranged opening slot on its inner side.