End cover of shutter blade

Abstract

The utility model belongs to the technical field of shutters, in particular to an end cover of a shutter blade, which comprises an end cover body used for blocking a blade body, one side of the end cover body close to the blade body is provided with an installation sheet, the installation sheet is attached to the inner wall surface of the blade body, the side wall of the installation sheet attached to the blade body is provided with an anti-dropping bulge, and the anti-dropping bulge is provided with an anti-dropping groove. The length of the anti-falling protrusion is larger than half of the length of the installation piece, and the installation piece is provided with a disconnecting notch which is located between the anti-falling protrusion and the end cover body. The mounting piece can be clamped in the blade body, the blade body is not prone to being jacked by the anti-falling protrusions, the surface of the blade body is smooth, and meanwhile the requirement for the machining precision of the end cover and the blade body is low.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of louver, and particularly relates to an end cover of a louver blade. BACKGROUND

[0002] The louver comprises a frame and a blade rotatably connected to the frame, and the blade comprises a blade body and two end covers respectively covered on both ends of the blade body.

[0003] A louver blade is disclosed in Chinese utility model patent (authorized publication number CN218439107U, application date 2022.09.28, authorized publication date 2023.02.03), which comprises a blade body with openings at both ends and a hollow structure, and two end covers respectively covered on both ends of the blade body. The end cover comprises an end cover body for plugging the blade body, and the side wall of the end cover body extends towards one side of the blade body to form an annular mounting portion abutting the inner wall surface of the blade body. Two notches are formed at both ends of the annular mounting portion to form two mounting pieces abutting the inner wall surface of the blade body. During installation, the mounting pieces are pressed inward to make the notches smaller. After installation is completed, the mounting pieces are abutted on the inner wall surface of the blade body. A plurality of anti-disengagement protrusions are distributed on the outer side wall of the mounting piece at intervals. The anti-disengagement protrusions comprise a protrusion one located close to the end cover body and a protrusion two connected to the protrusion one and located away from the end cover body. The outer surface of the protrusion one is a cylindrical surface, and the outer surface of the protrusion two is a conical surface. The diameter of the conical surface decreases from the side close to the end cover body to the side away from the end cover body. As known from the description and drawings of the above-mentioned utility model patent, the anti-disengagement protrusions are arranged at the end of the mounting piece away from the end cover body, and the length of the anti-disengagement protrusions is less than half the length of the mounting piece. Figure 3

[0004] The above-mentioned louver blade has the following disadvantages: the length of the anti-disengagement protrusions is relatively short, and the anti-disengagement effect is not good. If the length of the anti-disengagement protrusions is lengthened to the root of the mounting piece connected to the end cover body, the root of the mounting piece is not easy to deform due to being connected to the end cover body, and the anti-disengagement protrusions are easy to push up the blade body outward, resulting in uneven surface of the blade body. When the size of the mounting piece and the anti-disengagement protrusions is relatively large and / or the size of the blade body is relatively small, the end cover and the blade body are tightly clamped, and the end cover is not convenient to disassemble and assemble. When the size of the mounting piece and the anti-disengagement protrusions is relatively small and / or the size of the blade body is relatively large, the connection between the end cover and the blade body is relatively loose, and the processing precision of the end cover and the blade body is required to be high. SUMMARY

[0005] The utility model discloses a kind of end covers of louver blade, the mounting piece thereof can be clamped in blade body, and the anti-disengagement protrusions are not easy to push up blade body, blade body surface is flat, and the processing precision of end cover and blade body is required to be low simultaneously.

[0006] The utility model is implemented as follows: ​

[0007] An end cover of a louver blade, comprising an end cover body for sealing a blade body, the end cover body being provided with a mounting piece near one side of the blade body, the mounting piece being attached to an inner wall surface of the blade body, the mounting piece being provided with an anti-disengagement protrusion on the side wall of the blade body, the length of the anti-disengagement protrusion being greater than half the length of the mounting piece, the mounting piece being provided with a disengagement gap between the anti-disengagement protrusion and the end cover body.

[0008] In the end cover of a louver blade described above, the disengagement gap is rectangular.

[0009] In the end cover of a louver blade described above, the end cover body, the mounting piece and the anti-disengagement protrusion are of an integrated structure.

[0010] In the end cover of a louver blade described above, the anti-disengagement protrusion comprises a protrusion one and a protrusion two connected together, the protrusion one being located near the side of the end cover body, and the protrusion two being located away from the side of the end cover body, the outer surface of the protrusion one being a cylindrical surface, and the outer surface of the protrusion two being a circular truncated cone surface, the diameter of the circular truncated cone surface being reduced from the side near the end cover body to the side away from the end cover body, and the length L1 of the protrusion one being 2-8 times the length L2 of the protrusion two.

[0011] In the end cover of a louver blade described above, the axis of the anti-disengagement protrusion is perpendicular to the end cover body, and the center line of the disengagement gap coincides with the axis of the anti-disengagement protrusion.

[0012] In the end cover of a louver blade described above, the width w1 of the protrusion one is equal to the maximum width of the protrusion two, and the width w1 of the protrusion one is 1 / 5-1 / 3 of the width w2 of the disengagement gap.

[0013] In the end cover of a louver blade described above, the end surface of the disengagement gap away from the end cover body coincides with the end surface of the anti-disengagement protrusion near the end cover body, and the distance s1 between the anti-disengagement protrusion and the end cover body is 1.5-3 times the length L3 of the disengagement gap.

[0014] In the end cover of a louver blade described above, the distance s2 between the end surface of the anti-disengagement protrusion away from the end cover body and the end surface of the mounting piece away from the end cover body is greater than the distance s1 between the end surface of the anti-disengagement protrusion near the end cover body and the end surface of the mounting piece near the end cover body.

[0015] In the end cover of a louver blade described above, the mounting piece comprises a C-shaped mounting piece body and a connecting piece connecting the opening of the mounting piece body, the mounting piece body being attached to the inner wall surface of the blade body, the anti-disengagement protrusion being provided with two protrusions located on the upper and lower sides of the mounting piece body respectively, the disengagement gap being provided with two gaps located between the corresponding anti-disengagement protrusion and the end cover body respectively, and the mounting piece being provided with two mounting pieces symmetrically arranged at the two ends of the end cover body.

[0016] In the aforementioned type of louver blade end cap, the mounting plate body and the connecting plate are an integral structure.

[0017] In the aforementioned type of louver blade end cap, the length of the mounting plate body is greater than the length of the connecting plate, and the end of the connecting plate near the end cap body is connected to the end cap body.

[0018] In the aforementioned type of louver blade end cap, the outer wall of the mounting plate body at the end away from the end cap body gradually slopes from the inside out towards the middle.

[0019] In the aforementioned end cap of a louver blade, the thickness t of the end cap body is 0.5mm-1mm, and the length L4 of the mounting piece is 16mm-20mm.

[0020] The outstanding advantages of this utility model compared to the prior art are:

[0021] The length of the anti-detachment protrusion of this utility model is greater than half the length of the mounting piece. The long length of the anti-detachment protrusion can effectively clamp the mounting piece into the blade body and prevent the end cap from falling out. In addition, a discontinuity notch is set on the mounting piece between the anti-detachment protrusion and the end cap body. The mounting piece is easy to deform and has a large amount of deformation. The anti-detachment protrusion is not easy to push up the blade body, that is, the surface of the blade body is flat and the processing precision requirements of the end cap and the blade body are low. Attached image description:

[0022] Figure 1 This is a perspective view of the end cap and blade body of this utility model;

[0023] Figure 2 This is an exploded view of the end cap and blade body of this utility model;

[0024] Figure 3 This is a front view of the end cap of this utility model.

[0025] Reference numerals in the attached drawings: 1. Blade body; 2. End cap body; 3. Mounting piece; 3a. Mounting piece body; 3b. Connecting piece; 4. Anti-detachment protrusion; 4a. Protrusion one; 4b. Protrusion two; 5. Disconnection notch. Detailed implementation method:

[0026] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —3:

[0027] An end cover of a shutter blade comprises an end cover body 2 for blocking a blade body 1, the end cover body 2 is provided with a mounting piece 3 near one side of the blade body 1, the mounting piece 3 is attached to the inner wall surface of the blade body 1, the mounting piece 3 is provided with an anti-falling protrusion 4 on the side wall of the blade body 1, the length of the anti-falling protrusion 4 is greater than half the length of the mounting piece 3, the mounting piece 3 is provided with a breaking gap 5 between the anti-falling protrusion 4 and the end cover body 2.

[0028] As shown in Figures 1-3 the length of the anti-falling protrusion 4 is greater than half the length of the mounting piece 3, the length of the anti-falling protrusion 4 is long, which can effectively clamp the mounting piece 3 in the blade body 1 and prevent the end cover from falling out; the breaking gap 5 is arranged on the mounting piece 3 between the anti-falling protrusion 4 and the end cover body 2, the mounting piece 3 is easy to deform and has a large deformation amount, the anti-falling protrusion 4 is not easy to lift the blade body 1, that is, the surface of the blade body 1 is flat, and the processing precision of the end cover and the blade body 1 is low.

[0029] The specific shape of the breaking gap 5 is as shown in Figures 2-3 the breaking gap 5 is rectangular.

[0030] Preferably, the end cover body 2, the mounting piece 3 and the anti-falling protrusion 4 are of an integrated structure.

[0031] The structure of the anti-falling protrusion 4 is as shown in Figures 2-3 the anti-falling protrusion 4 comprises a protrusion one 4a and a protrusion two 4b connected, the protrusion one 4a is located near one side of the end cover body 2, the protrusion two 4b is located away from one side of the end cover body 2, the outer surface of the protrusion one 4a is a cylindrical surface, the outer surface of the protrusion two 4b is a circular truncated cone surface, the diameter of the circular truncated cone surface is reduced from the side near the end cover body 2 to the side away from the end cover body 2, the length L1 of the protrusion one 4a is 2-8 times the length L2 of the protrusion two 4b, which facilitates the mounting piece 3 to enter the blade body 1 and the clamping effect of the mounting piece 3 and the blade body 1. In this embodiment, the length L1 of the protrusion one 4a is 5 times the length L2 of the protrusion two 4b.

[0032] Further, the axis of the anti-falling protrusion 4 is perpendicular to the end cover body 2, and the center line of the breaking gap 5 coincides with the axis of the anti-falling protrusion 4.

[0033] In order to have a large deformation amount of the mounting piece 3 at the anti-falling protrusion 4, the width w1 of the protrusion one 4a is equal to the maximum width of the protrusion two 4b, and the width w1 of the protrusion one 4a is 1 / 5-1 / 3 of the width w2 of the breaking gap 5. In this embodiment, the width w1 of the protrusion one 4a is 1.2mm, the width w2 of the breaking gap 5 is 5mm, and the width w1 of the protrusion one 4a is 0.24 of the width w2 of the breaking gap 5.

[0034] In order to ensure that the mounting piece 3 has a large deformation amount while the mounting piece 3 is firmly connected with the end cover body 2, the end face of the anti-falling protrusion 4 away from the end cover body 2 coincides with the end face of the anti-falling protrusion 4 close to the end cover body 2, and the distance s1 between the anti-falling protrusion 4 and the end cover body 2 is 1.5-3 times the length L3 of the breaking gap 5. In the embodiment, the distance s1 between the anti-falling protrusion 4 and the end cover body 2 is 2.2 mm, the length L3 of the breaking gap 5 is 1 mm, and the distance s1 between the anti-falling protrusion 4 and the end cover body 2 is 2.2 times the length L3 of the breaking gap 5.

[0035] In order to facilitate the mounting piece 3 to enter the blade body 1 and better clamping of the mounting piece 3 to the blade body 1, the distance s2 between the end face of the anti-falling protrusion 4 away from the end cover body 2 and the end face of the mounting piece 3 away from the end cover body 2 is greater than the distance s1 between the end face of the anti-falling protrusion 4 close to the end cover body 2 and the end face of the mounting piece 3 close to the end cover body 2. In the embodiment, the distance s2 between the end face of the anti-falling protrusion 4 away from the end cover body 2 and the end face of the mounting piece 3 away from the end cover body 2 is 4.5 mm, and the distance s1 between the end face of the anti-falling protrusion 4 close to the end cover body 2 and the end face of the mounting piece 3 close to the end cover body 2 is 2.2 mm.

[0036] The specific structure of the mounting piece 3: the mounting piece 3 includes a C-shaped mounting piece body 3a and a connecting piece 3b connected to the opening of the mounting piece body 3a, the mounting piece body 3a is attached to the inner wall surface of the blade body 1, the anti-falling protrusion 4 is provided with two and is located on the upper and lower sides of the mounting piece body 3a respectively, the breaking gap 5 is provided with two and is located between the corresponding anti-falling protrusion 4 and the end cover body 2 respectively, and the mounting piece 3 is provided with two and is symmetrically arranged at both ends of the end cover body 2.

[0037] Preferably, the mounting piece body 3a and the connecting piece 3b are of an integral structure.

[0038] Further, the length of the mounting piece body 3a is greater than the length of the connecting piece 3b, and the connecting piece 3b is connected to the end cover body 2 at one end close to the end cover body 2.

[0039] In order to facilitate the mounting piece 3 to enter the blade body 1, the outer side wall of the end of the mounting piece body 3a away from the end cover body 2 gradually inclines to the middle from the inside to the outside.

[0040] Further, the thickness t of the end cover body 2 is 0.5-1 mm, and the length L4 of the mounting piece 3 is 16-20 mm. When the thickness t of the end cover body 2 is small and the length L4 of the mounting piece 3 is long, the strength of the end cover body 2 is effectively enhanced to prevent the end cover body 2 from being deformed. In the embodiment, the thickness t of the end cover body 2 is 0.7 mm, and the length L4 of the mounting piece 3 is 18.7 mm.

[0041] The above embodiment is only one of the preferred embodiments of the present application, and does not limit the scope of the present application, so that: all equivalent changes made according to the shape, structure, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An end cap for a louver blade, characterized by: The application relates to a sealing blade body (1) comprising an end cover body (2) for sealing the blade body (1), wherein the end cover body (2) is provided with a mounting piece (3) near one side of the blade body (1), the mounting piece (3) is attached to the inner wall surface of the blade body (1), the mounting piece (3) is provided with an anti-falling protrusion (4) attached to the side wall of the blade body (1), the length of the anti-falling protrusion (4) is greater than half the length of the mounting piece (3), and the mounting piece (3) is provided with a breaking gap (5) between the anti-falling protrusion (4) and the end cover body (2).

2. An end cap for a louver blade according to claim 1, wherein: The anti-falling protrusion (4) comprises a first protrusion (4a) and a second protrusion (4b) connected to each other, the first protrusion (4a) is located near one side of the end cover body (2), the second protrusion (4b) is located away from one side of the end cover body (2), the outer surface of the first protrusion (4a) is a cylindrical surface, the outer surface of the second protrusion (4b) is a circular truncated cone surface, the diameter of the circular truncated cone surface is reduced from the side near the end cover body (2) to the side away from the end cover body (2), and the length of the first protrusion (4a) is 2-8 times the length of the second protrusion (4b).

3. An end cap for a louver blade according to claim 2, wherein: The axis of the anti-falling protrusion (4) is perpendicular to the end cover body (2), and the center line of the breaking gap (5) coincides with the axis of the anti-falling protrusion (4).

4. An end cap for a louver blade according to claim 3, wherein: The width of the first protrusion (4a) is equal to the maximum width of the second protrusion (4b), and the width of the first protrusion (4a) is 1 / 5-1 / 3 of the width of the breaking gap (5).

5. An end cap for a louver blade according to claim 3, wherein: The end surface of the anti-falling protrusion (4) away from the end cover body (2) coincides with the end surface of the anti-falling protrusion (4) near the end cover body (2), and the distance between the anti-falling protrusion (4) and the end cover body (2) is 1.5-3 times the length of the breaking gap (5).

6. An end cap for a louver blade according to claim 1, wherein: The distance between the end surface of the anti-falling protrusion (4) away from the end cover body (2) and the end surface of the mounting piece (3) away from the end cover body (2) is greater than the distance between the end surface of the anti-falling protrusion (4) near the end cover body (2) and the end surface of the mounting piece (3) near the end cover body (2).

7. An end cap for a louver blade according to claim 1, wherein: The mounting piece (3) comprises a C-shaped mounting piece body (3a) and a connecting piece (3b) connecting the opening of the mounting piece body (3a), the mounting piece body (3a) is attached to the inner wall surface of the blade body (1), the anti-falling protrusion (4) is provided with two protrusions, which are located on the upper and lower sides of the mounting piece body (3a) respectively, the breaking gap (5) is provided with two gaps, which are located between the corresponding anti-falling protrusions (4) and the end cover body (2) respectively, and the mounting piece (3) is provided with two mounting pieces, which are symmetrically arranged at the two ends of the end cover body (2).

8. An end cap for a louver blade according to claim 7, wherein: The outer side wall of the mounting piece body (3a) away from the end cover body (2) gradually inclines to the middle from the inside to the outside.

9. A louver blade end cap according to claim 1 wherein: The thickness of the end cover body (2) is 0.5-1 mm, and the length of the mounting piece (3) is 16-20 mm.

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