TWM449879U - Composite washer - Google Patents

Description

Compound huasi

The present invention relates to a compound washer, in particular to a compound washer which is excellent in adhesion and is not easily rusted.

Referring to Figures 1 and 2, a conventional composite washer 11 includes a metal sheet 12 and an elastic body 13 fixed to the bottom surface of the metal sheet 12. The metal sheet body 12 has a first through hole 121 extending longitudinally. The elastic body 13 has a second through hole 131 extending longitudinally and communicating with the first through hole 121, and the second hole 131 has a hole diameter from the top surface. The direction of the bottom surface gradually decreases. In use, the composite washer 11 is sleeved on the screw 141 of a screw 14 by the first through hole 121 and the second through hole 131. When the screw 14 is screwed and locked on a to-be-locked object 15, the composite The Huashi 11 can be positioned between the bottom surface of the screw head 142 of the screw 14 and the object to be locked 15 to provide a locking position.

However, the above-mentioned composite washer 11 is different in the thickness dimension of the metal sheet body 12 and the elastic body 13, so that abnormal locking occurs. Referring to FIG. 2, when the thickness h _{1 of} the metal sheet body 12 is fixed When the thickness h ₂ of the elastic body 13 is 0.3 mm to 4.0 mm, the metal sheet body 12 is lifted up to the elastic body 13 due to the thickness being thin. When the thickness h _{1 of} the metal sheet body 12 is fixed to 0.4 mm, and the thickness h ₂ of the elastic body 13 is 0.5 mm to 4.0 mm, the metal sheet body 12 is also lifted upward; or when the metal sheet body is The thickness h ₁ of 12 is 0.5 mm, and when the thickness h ₂ of the elastic body 13 is 0.5 mm, the metal sheet body 12 is still upwardly lifted; the lifted portion easily accumulates water liquid on rainy days, thereby causing the metal sheet to be formed. Body 12 oxidizes and rusts.

Referring to FIG. 3, in another case of abnormal locking, when the thickness h ₁ of the metal sheet body 12 is 0.6 mm to 1.4 mm, and the thickness h _{2 of} the elastic body 13 is fixed to 0.5 mm, the metal sheet body is selected. 12 will be recessed downward into the elastic body 13; when the thickness h ₁ of the metal sheet body 12 is 0.5 mm to 1.4 mm, and the thickness h _{2 of} the elastic body 13 is fixed to 3.5 mm, the thickness of the elastic body may be biased. Thick, causing the metal sheet body 12 to also be recessed downward; and when the thickness h ₁ of the metal sheet body 12 is 0.5 mm to 1.4 mm, and the thickness h _{2 of} the elastic body 13 is fixed to 4.0 mm, the metal sheet The body 12 is still recessed downwards; or the thickness h ₁ of the metal sheet body 12 is adjusted to be 0.8 mm to 1.4 mm, and the metal sheet body 12 is adjusted when the thickness h ₂ of the elastic body 13 is 1.0 mm to 3.0 mm. It will still sag downwards to form a water accumulation place, so that the external rainwater accumulates here, causing the metal sheet body 12 to oxidize and rust, and the leakage prevention effect is obviously not obvious.

Therefore, the object of the present invention is to provide a composite washer which has a good anti-leakage effect and can improve the tightness of the twist lock.

Thus, the novel composite washer comprises a metal sheet and an elastomer. The metal sheet body has a first top surface, a first bottom surface opposite to the first top surface, and a first through hole penetrating the first top surface and the first bottom surface, and the thickness of the metal sheet body It is from 0.5 mm to 0.7 mm. The elastic body has a second top surface fixed to the first bottom surface of the metal sheet body, a second bottom surface opposite to the second top surface, and a second top surface and a second bottom surface extending through the second top surface and the second bottom surface The first through hole communicates with the second through hole, and the thickness of the elastic body is 1.0 mm to 3.0 mm.

The utility model has the advantages that, by limiting the thickness of the metal sheet body and the elastic body, the metal sheet body and the elastic body can be evenly fitted to each other when used for the screw lock of the screw-locking element. On the lock object, ensure that the outside rain does not accumulate and avoid the rust corrosion of the metal sheet.

The foregoing and other technical aspects, features and advantages of the present invention will be apparent from the following description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 4, a preferred embodiment of the novel composite 2 includes a metal sheet 3 and an elastomer 4. The metal sheet body 3 has a thickness h ₃ of 0.5 mm to 0.7 mm, and has a first top surface 31, a first bottom surface 32 opposite to the first top surface 31, and a longitudinal through the first top surface 31. And a first through hole 33 of the first bottom surface 32. The thickness of the elastic body 4 h ₄ is 1.0 mm to 3.0mm, and having a metal plate fixed to the top surface of the second member 413 of the first bottom surface 31, a second opposite to the top surface 41 of the second a bottom surface 42 , a second through hole 43 extending through the second top surface 41 and the second bottom surface 42 , and an inner wall surface 44 defining the second through hole 43 . The second through hole 43 communicates with the first through hole 33 of the metal sheet body 3, and the aperture of the second through hole 43 gradually decreases from the second top surface 41 toward the second bottom surface 42. The maximum aperture of the second through hole 43 is smaller than the aperture of the first through hole 33 of the metal piece 3. In addition, the metal sheet body 3 and the elastic body 4 are gradually inclined downward from the inside to the outside with reference to a central axis L.

Referring to FIGS. 5 and 6, in use, the composite washer 2 is sleeved on the shaft 51 of a screw lock member 5 by the first through hole 33 and the second through hole 43 with the screw lock member 5 The shaft 51 is gradually screwed into a to-be-locked object 6, so that the bottom surface of the screw head 52 of the screw-locking element 5 first touches the highest point of the center of the composite washer 2, and the bottom surface of the screw head 52 further presses the composite washer The highest point of the center of the 2 is gradually displaced downward, and the remaining portion of the composite washer 2 is relatively gradually displaced upward, so that the inner wall surface 44 of the elastic body 4 approaches the direction of the screw-locking member 5, thereby tightly packing The bottom surface of the screw head 52 of the screw element 5 is also closely attached to the first top surface 31 of the metal sheet body 3. The metal sheet body 3 and the elastic body 4 are horizontally stacked. Further, it is attached to the object to be locked 6, whereby the screw member 5 can be prevented from being loosened, and moisture can be more effectively prevented from accumulating in the metal sheet body 3 to cause rust corrosion.

The novel composite washer 2 has the following advantages in practical use by the above structural design:

(1) Good anti-leakage effect and rust-proof:

The composite washer 2 is used by the specific thickness of the metal sheet 3 and the elastic body 4, that is, the thickness h ₃ of the metal sheet ₃ is 0.5 mm to 0.7 mm, and the thickness h ₄ of the elastic body ₄ is 1.0 mm to 3.0 mm, after the locking position of the screw-locking element 5 is fixed, the metal sheet body 3 of the composite washer 2 does not sag downward or upwardly to form a water-storing place, and the screw-locking element 5 is It has higher tightness with the elastic body 4, can exert excellent waterproof effect, and prevents the composite washer 2 or the screw lock member 5 from being rusted and corroded.

(2) Good convenience:

Since the composite washer 2 is matched with a screw lock component 5 for locking on a roofing material such as asbestos, iron sheet, plastic, etc., the composite sheet is made by the specific thickness of the metal sheet 3 and the elastic body 4 2 and the screw-locking element 5 can be closely attached to the roofing material, so as to prevent the rainwater from invading and causing the composite washer 2 or the screw-locking component 5 to rust and corrode, so that the composite washer 2 is not required to be replaced frequently. Not only is it convenient to use, but it can also increase its aesthetics.

In summary, according to the above structural design, the novel composite washer 2 can not only improve the tightness of the screw lock element 5 on the metal sheet body 3, but also effectively prevent moisture accumulation and avoid rust. It is produced, so it can achieve the purpose of this new type.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

2‧‧‧Compound China

3‧‧‧Metal sheet

31‧‧‧First top surface

32‧‧‧ first bottom surface

33‧‧‧First through hole

4‧‧‧ Elastomers

41‧‧‧Second top

42‧‧‧second bottom surface

43‧‧‧Second through hole

44‧‧‧ inner wall

5‧‧‧Spiral lock components

51‧‧‧ shaft

52‧‧‧ screw head

6‧‧‧Locked items

h ₃ ‧‧‧The thickness of the metal sheet

h ₄ ‧‧‧The thickness of the elastomer

L‧‧‧ center axis

1 is a perspective exploded view showing a conventional composite washer; FIG. 2 is a cross-sectional view showing a state in which the metal sheet of the conventional composite is recessed downward; FIG. 3 is a cross-sectional view showing a state of use. The metal sheet of the conventional composite is lifted upwards; FIG. 4 is a cross-sectional view showing a preferred embodiment of the composite composite of the present invention; Figure 5 is a cross-sectional view showing a state in which the preferred embodiment is used with a screw-locking member, wherein the bottom surface of the screw head of the screw-locking member is placed at the highest point of the center of the composite washer; and Figure 6 is a Referring to the cross-sectional view of the state of use, FIG. 5 is additionally illustrated, which shows that the screw-locking element is locked into a to-be-locked object, and the composite washer is closely attached to the object to be locked.

2‧‧‧Compound China

3‧‧‧Metal sheet

31‧‧‧First top surface

32‧‧‧ first bottom surface

33‧‧‧First through hole

4‧‧‧ Elastomers

41‧‧‧Second top

42‧‧‧second bottom surface

43‧‧‧Second through hole

44‧‧‧ inner wall

h ₃ ‧‧‧The thickness of the metal sheet

h ₄ ‧‧‧The thickness of the elastomer

L‧‧‧ center axis

Claims (3)

A composite washer comprising: a metal sheet having a first top surface, a first bottom surface opposite to the first top surface, and a first through hole extending through the first top surface and the first bottom surface And the metal sheet has a thickness of 0.5 mm to 0.7 mm; and an elastic body having a second top surface fixed to the first bottom surface of the metal sheet body and a second opposite to the second top surface a bottom surface, and a second through hole penetrating the second top surface and the second bottom surface and communicating with the first through hole, and the elastic body has a thickness of 1.0 mm to 3.0 mm. The composite of the second aspect of the invention, wherein the aperture of the second through hole of the elastic body gradually decreases from the second top surface toward the second bottom surface. According to the compounding machine of claim 2, the first through hole has a larger diameter than the second through hole.