Sealing strip length measuring device

Abstract

The utility model provides a sealing strip length measuring device, and belongs to the field of measuring tools. According to the technical scheme, the sealing strip length measuring device comprises a measuring scale body, the measuring scale body comprises an outer scale body and an inner scale body, the outer scale body is nested on the outer side of the inner scale body, the outer scale body and the inner scale body can relatively slide in the length direction, the cross section of the outer scale body and the cross section of the inner scale body are in an L shape, and the outer scale body and the inner scale body are in a rectangular shape. First scales are arranged on the L-shaped inner surface of the outer ruler body, and second scales are arranged on the L-shaped inner surface of the inner ruler body. According to the scheme, on one hand, the measuring scale body is arranged to be in the L shape, the annular sealing strip is attached to the corner of the L shape, the total length of the annular sealing strip can be obtained by rolling the annular sealing strip by one circle, in the measuring process, the straightness of the annular sealing strip can be kept, tensile deformation is avoided, and the measuring precision of the annular sealing strip is greatly improved; and on the other hand, the measuring scale main body adopts a telescopic extension design, so that the measuring range is improved.

Description

Technical Field

[0001] This utility model relates to the field of measuring tools, and in particular to a device for measuring the length of a sealing strip. Background Technology

[0002] As a crucial component of the vehicle's sealing system, the quality control of vehicle sealing strips directly impacts vehicle assembly processes and NVH performance. Vehicle sealing strips are primarily made of rubber, possessing excellent weather resistance, aging resistance, and elasticity, enabling them to withstand various harsh environmental conditions. The production of vehicle sealing strips involves steps such as heating and melting, extrusion molding, and vulcanization. Some sealing strips also require subsequent processes such as cutting and drilling, installing metal frames, and flocking.

[0003] During the aforementioned production process, because the sealing strip uses a melt-molding process and is an elastic structure, it is prone to errors between the molded dimensions and the design dimensions. When the actual length is shorter than the lower limit of the design, gaps will appear during installation, which will not only increase the closing force of the car door but also generate obvious wind noise at high speeds. When the length exceeds the upper limit, the sealing strip will bulge at the corners, forming wrinkles. Early aging cracks will appear in the wrinkled areas, and both of these situations will reduce the airtightness of the car body.

[0004] When measuring the length of a sealing strip, conventional measuring tools such as a tape measure are usually used. However, the sealing strips used on vehicles, such as those in door openings, toolboxes, and trunks, are all ring-shaped. When using a tape measure, the ring-shaped sealing strip is usually stretched into two straight segments for measurement. However, the stretching operation itself increases the length of the sealing strip during measurement, leading to measurement distortion. Utility Model Content

[0005] This invention addresses the current problems of difficulty and large errors in measuring the length of vehicle sealing strips, especially annular sealing strips, by providing a sealing strip length measuring device.

[0006] To solve the above problems, the technical solution adopted by this utility model is a sealing strip length measuring device, including a measuring ruler body, which includes an outer ruler body and an inner ruler body. The outer ruler body is nested outside the inner ruler body, and the outer ruler body and the inner ruler body can slide relative to each other in the length direction. The cross-section of the outer ruler body and the inner ruler body is L-shaped. The inner surface of the L-shaped outer ruler body is provided with a first scale, and the inner surface of the L-shaped inner ruler body is provided with a second scale. This solution, on the one hand, sets the measuring ruler body to an L-shape. In use, the annular sealing strip is placed against the corner of the L-shape, and then a starting point is determined on the annular sealing strip. The starting point is placed at the starting point of the measuring ruler scale, and the annular sealing strip is rolled one revolution. The scale at which the starting point is located is the total length of the annular sealing strip. During the above measurement process, the straightness of the annular sealing strip can be maintained without tensile deformation, greatly improving the measurement accuracy of the annular sealing strip. On the other hand, the measuring ruler body of this solution adopts a telescopic extension design, increasing the measurement range.

[0007] As a preferred embodiment of a sealing strip length measuring device, the outer ruler body includes a first bottom surface and a first vertical surface arranged at an angle. The outer edge of the first bottom surface has a first edging, and the upper edge of the first vertical surface has a second edging. The inner ruler body includes a second bottom surface and a second vertical surface arranged at an angle, the angle between the second bottom surface and the second vertical surface being the same as the angle between the first bottom surface and the first vertical surface. The first edging covers the outer edge of the second bottom surface, and the second edging covers the upper edge of the second vertical surface. This design not only enhances the stability of the connection between the outer and inner ruler bodies, reducing the shaking caused by relative sliding during measurement, but also effectively protects the edges of the ruler body, extending the service life of the device and further ensuring measurement accuracy.

[0008] As a preferred embodiment of a sealing strip length measuring device, the first scale is set on the first vertical surface, and the second scale is set on the second vertical surface. Setting the scale on the vertical surface minimizes obstruction of the scale by the sealing strip and the user's hands. Simultaneously, during operation, whether stretching the inner scale or using the outer scale, the user can conveniently and intuitively read the data, avoiding reading errors caused by improper scale placement, and greatly improving the convenience and efficiency of measurement.

[0009] As a preferred embodiment of a sealing strip length measuring device, the first end of the outer scale body is provided with a first cap, and the first end of the inner scale body can abut against the first cap. The presence of the first cap can prevent the inner scale body from sliding out excessively, thus limiting the inner scale body, improving its integrity during carrying, and ensuring the structural integrity of the measuring scale body during measurement. This avoids measurement interruption or inaccurate measurement results due to the inner scale body falling off, and also protects the end of the inner scale body, extending its service life.

[0010] In a preferred embodiment of the sealing strip length measuring device, a second end cap is provided at the second end of the outer scale body, and the second end of the inner scale body can abut against the second end cap. The second end cap also serves to limit the movement of the inner scale body, further improving the structural stability of the device.

[0011] As a preferred embodiment of the sealing strip length measuring device, the second end of the outer scale body is further provided with a connecting plate. The connecting plate is L-shaped and nested on the outside of the outer scale body. The first end of the connecting plate has a first connecting structure that connects to the second end of the outer scale body, and the second end of the connecting plate has a second connecting structure that connects to the first end of the inner scale body. The second end cap is detachably installed on the second end of the connecting plate. In the unfolded state, the connecting plate can fix the inner and outer scale bodies at their maximum length, ensuring precise scale continuity and guaranteeing measurement accuracy.

[0012] As a preferred embodiment of a sealing strip length measuring device, the first connecting structure includes a first protrusion disposed on the connecting plate, and a first connecting hole provided at the second end of the outer scale body, with the first protrusion engaging with the first connecting hole; the second connecting structure includes a second protrusion disposed on the connecting plate, and a second connecting hole provided at the first end of the inner scale body, with the second protrusion engaging with the second connecting hole. This connection method, where the protrusion engages with the connecting hole, facilitates easy installation and disassembly, allowing for quick operation when the device needs maintenance or component replacement. It also ensures a tight connection, preventing loosening during measurement and ensuring measurement accuracy.

[0013] As a preferred embodiment of the sealing strip length measuring device, multiple sets of the first protrusion and the first connecting hole are provided; multiple sets of the second protrusion and the second connecting hole are also provided. By using multiple sets of protrusions and connecting holes, the wobbling that may occur with single-point connection is avoided, further improving measurement accuracy.

[0014] In a preferred embodiment of the sealing strip length measuring device, the angle between the first bottom surface and the first vertical surface is no greater than 90 degrees, and the angle between the second bottom surface and the second vertical surface is no greater than 90 degrees. This ensures that the sealing strip fits tightly against the corner of the measuring scale body during measurement, reducing measurement errors caused by improper angles and improving measurement accuracy.

[0015] In a preferred embodiment of the sealing strip length measuring device, the thickness of the first bottom surface is the same as the thickness of the second bottom surface, and the thickness of the first vertical surface is the same as the thickness of the second vertical surface. This eliminates the height difference between the inner and outer scales in the unfolded state, making it easier to use and improving measurement accuracy.

[0016] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: This device consists of an outer scale body and an inner scale body, both of which have an L-shaped cross-section. The outer scale body is nested outside the inner scale body and can slide relative to it. During measurement, the annular sealing strip is placed against the L-shaped corner, the starting point is determined and aligned with the starting point of the scale. After rolling the sealing strip one revolution, the scale corresponding to the starting point is read, thus obtaining the total length of the sealing strip. The telescopic design of the device extends the measurement range and is suitable for measuring sealing strips of different lengths. The L-shaped design ensures the sealing strip remains straight and free from tensile deformation during measurement, avoiding measurement errors. Simultaneously, the scale's placement on the vertical surface minimizes obstruction by the sealing strip and the user's hands, facilitating intuitive data reading and improving measurement accuracy. The outer and inner scales are connected by an edge-sealing structure, reducing wobbling during relative sliding and enhancing structural stability. The design of the first and second end caps prevents the inner scale from sliding out excessively, ensuring structural integrity and preventing measurement interruptions or inaccurate results. The edge-sealing structure and end cap design effectively protect the edges of the scales and the end of the inner scale, extending the device's lifespan. The reasonable scale placement and the coordinated design of the protrusions and connecting holes allow operators to easily and intuitively read data, facilitating installation, disassembly, and maintenance, significantly improving measurement convenience and efficiency. In summary, this device, through optimized design, significantly improves measurement accuracy, stability, convenience, and lifespan, making it suitable for sealing strip length measurement in various scenarios. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the sealing strip length measuring device in a specific embodiment of this utility model.

[0019] Figure 2 This is a cross-sectional schematic diagram of the sealing strip length measuring device in a specific embodiment of this utility model.

[0020] Figure 3 This is an exploded view of the sealing strip length measuring device in a specific embodiment of this utility model.

[0021] Figure 4 This is a schematic diagram of the first and second connecting structures on the connecting plate in a specific embodiment of this utility model.

[0022] Explanation of main figure symbols

[0023] 1. First end cap, 2. Outer scale body, 21. First bottom surface, 22. First elevation, 23. First edging, 24. Second edging, 25. First connecting hole, 3. Connecting plate, 31. First protrusion, 32. Second protrusion, 4. Second end cap, 5. Inner scale body, 51. Second bottom surface, 52. Second elevation, 53. Second connecting hole. Detailed Implementation

[0024] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0025] Example 1

[0026] like Figure 1 As shown, a sealing strip length measuring device includes a measuring ruler body, which comprises an outer ruler body 2 and an inner ruler body 5. The cross-sections of the outer ruler body 2 and the inner ruler body 5 are L-shaped. The outer ruler body 2 is nested outside the inner ruler body 5. Specifically:

[0027] like Figure 2 and Figure 3As shown, the outer scale body 2 includes a first bottom surface 21 and a first vertical surface 22 arranged at an angle. The outer edge of the first bottom surface 21 is provided with a first edging 23, which is folded upward twice relative to the first bottom surface 21, forming a C-shape with the first bottom surface 21. The upper edge of the first vertical surface 22 is provided with a second edging 24, which is folded forward twice relative to the first vertical surface 22, forming a C-shape with the first vertical surface 22. The inner scale body 5 includes a second bottom surface 51 and a second vertical surface 52 arranged at an angle. The second bottom surface 51 and the second vertical surface 52 are... The included angle between the two surfaces is the same as the included angle between the first bottom surface 21 and the first vertical surface 22. The first edging 23 covers the outer edge of the second bottom surface 51, and the second edging 24 covers the upper edge of the second vertical surface 52. Thus, it can be seen from this structure that the outer ruler 2 and the inner ruler 5 can slide relative to each other in the length direction. The L-shaped inner surface of the outer ruler 2 is provided with a first scale, and the L-shaped inner surface of the inner ruler 5 is provided with a second scale. Preferably, the first scale is set on the first vertical surface 22, and the second scale is set on the second vertical surface 52.

[0028] The first and second ends of the outer scale 2 (set at) Figure 1 In the middle (the left side is the first end, the right side is the second end, the same below), a first plug 1 and a second plug 4 are respectively provided. Figure 1 When the measuring scale body is in its stored state, the first end of the inner scale body 5 can contact the first cover 1 when it slides to the left, and the second end of the inner scale body 5 can contact the second cover 4 when it slides to the right.

[0029] The method of use in this embodiment is as follows: When measuring the length of the annular sealing strip, select whether to extend the main body of the measuring ruler according to the design length of the annular sealing strip; then select a mark point on the annular sealing strip, such as the joint position where the two ends of the annular sealing strip are connected when it is made into a ring from strip raw material, and place the mark point at the starting point of the scale (the second scale when the main body of the measuring ruler is in the retracted state, and the first scale when it is in the unfolded state). Then, place the annular sealing strip against the turning point of the L-shape and roll the annular sealing strip around the measuring ruler. When the mark point is on the scale line again, the current scale reading is the total length of the annular sealing strip.

[0030] Based on this method of use, the angle between the first bottom surface 21 and the first vertical surface 22 is no greater than 90 degrees, and the angle between the second bottom surface 51 and the second vertical surface 52 is no greater than 90 degrees, thereby enabling the sealing strip to be better positioned at the turning point.

[0031] When measuring a linear sealing strip, simply place the sealing strip against the L-shaped bend and observe the markings at both ends of the sealing strip.

[0032] Example 2

[0033] The basic structure of this embodiment is basically the same as that of Embodiment 1, the difference being that, as follows: Figure 4 As shown, the second end of the outer scale body 2 is also provided with a connecting plate 3. The connecting plate 3 is L-shaped and is nested on the outside of the outer scale body 2. The first end of the connecting plate 3 is provided with a first connecting structure, which is connected to the second end of the outer scale body 2. The second end of the connecting plate 3 is provided with a second connecting structure, which can be connected to the first end of the inner scale body 5. The second plug 4 is detachably installed on the second end of the connecting plate 3.

[0034] Based on the connecting plate 3, this embodiment can fix the inner scale body 5 and the outer scale body 2 at their maximum length. Specifically, the first connecting structure includes a first protrusion 31 disposed on the connecting plate 3, and a first connecting hole 25 provided at the second end of the outer scale body 2. Multiple sets of the first protrusion 31 and the first connecting hole 25 are provided accordingly, and the first protrusion 31 is connected to the first connecting hole 25. The second connecting structure includes a second protrusion 32 disposed on the connecting plate 3, and a second connecting hole 53 provided at the first end of the inner scale body 5. The second protrusion 32 is connected to the second connecting hole 53, and multiple sets of the second protrusion 32 and the second connecting hole 53 are provided accordingly.

[0035] Furthermore, the thickness of the first bottom surface 21 is the same as the thickness of the second bottom surface 51, and the thickness of the first vertical surface 22 is the same as the thickness of the second vertical surface 52.

[0036] As can be seen from the above embodiments, the advantages of this utility model are as follows: This device consists of an outer scale body and an inner scale body, both of which have an L-shaped cross-section. The outer scale body is nested outside the inner scale body and can slide relative to it. During measurement, the annular sealing strip is placed against the L-shaped corner, the starting point is determined and aligned with the starting point of the scale. After rolling the sealing strip one revolution, the scale corresponding to the starting point is read to obtain the total length of the sealing strip. The telescopic design of the device extends the measurement range and is suitable for measuring sealing strips of different lengths. The L-shaped design ensures the sealing strip remains straight and free from tensile deformation during measurement, avoiding measurement errors. Simultaneously, the scale's placement on the vertical surface minimizes obstruction by the sealing strip and the user's hands, facilitating intuitive data reading and improving measurement accuracy. The outer and inner scales are connected by an edge-sealing structure, reducing wobbling during relative sliding and enhancing structural stability. The design of the first and second end caps prevents the inner scale from sliding out excessively, ensuring structural integrity and preventing measurement interruptions or inaccurate results. The edge-sealing structure and end cap design effectively protect the edges of the scales and the end of the inner scale, extending the device's lifespan. The reasonable scale placement and the coordinated design of the protrusions and connecting holes allow operators to easily and intuitively read data, facilitating installation, disassembly, and maintenance, significantly improving measurement convenience and efficiency. In summary, this device, through optimized design, significantly improves measurement accuracy, stability, convenience, and lifespan, making it suitable for sealing strip length measurement in various scenarios.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A seal strip length measuring device comprising a scale body, characterised in that, The scale body comprises an outer scale body (2) and an inner scale body (5), the outer scale body (2) is nested outside the inner scale body (5), the outer scale body (2) and the inner scale body (5) can slide relative to each other in the length direction, the outer scale body (2) and the inner scale body (5) are L-shaped in cross section, the L-shaped inner surface of the outer scale body (2) is provided with a first scale, and the L-shaped inner surface of the inner scale body (5) is provided with a second scale.

2. A length measuring device for a weather strip according to claim 1, wherein The outer scale body (2) comprises a first bottom surface (21) and a first vertical surface (22) arranged at an angle, the outer side edge of the first bottom surface (21) is provided with a first edge cover (23), and the upper side edge of the first vertical surface (22) is provided with a second edge cover (24); the inner scale body (5) comprises a second bottom surface (51) and a second vertical surface (52) arranged at an angle, the angle between the second bottom surface (51) and the second vertical surface (52) is the same as the angle between the first bottom surface (21) and the first vertical surface (22), the first edge cover (23) is covered on the outer side edge of the second bottom surface (51), and the second edge cover (24) is covered on the upper side edge of the second vertical surface (52).

3. A seal length measuring device according to claim 2, wherein, The first scale is arranged on the first vertical surface (22), and the second scale is arranged on the second vertical surface (52).

4. A length measuring device for a weather strip according to claim 2, wherein The first end of the outer scale body (2) is provided with a first plug cover (1), and the first end of the inner scale body (5) can abut against the first plug cover (1).

5. A length measuring device for a weather strip according to claim 4, wherein The second end of the outer scale body (2) is provided with a second plug cover (4), and the second end of the inner scale body (5) can abut against the second plug cover (4).

6. A length measuring device for a weather strip according to claim 5, wherein The second end of the outer scale body (2) is further provided with a connecting plate (3), the connecting plate (3) is L-shaped, the connecting plate (3) is nested outside the outer scale body (2), the first end of the connecting plate (3) is provided with a first connecting structure, the first connecting structure is connected with the second end of the outer scale body (2), the second end of the connecting plate (3) is provided with a second connecting structure, the second connecting structure can be connected with the first end of the inner scale body (5), and the second plug cover (4) is detachably mounted at the second end of the connecting plate (3).

7. A length measuring device for a weather strip according to claim 6, wherein The first connecting structure comprises a first protrusion (31) arranged on the connecting plate (3), the second end of the outer scale body (2) is provided with a first connecting hole (25), and the first protrusion (31) is connected with the first connecting hole (25) in a matched mode; the second connecting structure comprises a second protrusion (32) arranged on the connecting plate (3), the first end of the inner scale body (5) is provided with a second connecting hole (53), and the second protrusion (32) is connected with the second connecting hole (53) in a matched mode.

8. A seal length measuring device according to claim 7, wherein, The first protrusion (31) and the first connecting hole (25) are correspondingly provided with a plurality of groups; the second protrusion (32) and the second connecting hole (53) are correspondingly provided with a plurality of groups.

9. A weatherstrip length measuring device according to claim 2 wherein, The angle between the first bottom surface (21) and the first vertical surface (22) is not greater than 90 degrees, and the angle between the second bottom surface (51) and the second vertical surface (52) is not greater than 90 degrees.

10. A weatherstrip length measuring device according to claim 7, wherein The thickness of the first bottom surface (21) is the same as the thickness of the second bottom surface (51), and the thickness of the first vertical surface (22) is the same as the thickness of the second vertical surface (52).

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