CN210659095U

CN210659095U - Mute lock catch structure

Info

Publication number: CN210659095U
Application number: CN201921316255.3U
Authority: CN
Inventors: 刘彬彬; 叶经云
Original assignee: Zhejiang Lingge Wood Co ltd
Current assignee: Zhejiang Lingge Wood Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-06-02
Anticipated expiration: 2029-08-14
Also published as: JP3227821U

Abstract

The utility model provides a silence hasp structure, including tenon structure, box structure, the tenon structure includes tenon portion, tenon upper end wall, first chamfer face, tenon lower end wall, tenon convex part, the box structure includes tenon portion, tenon upper end wall, second chamfer face, tenon lower end wall, with the tenon concave part of tenon convex part block fit, tenon upper end wall is to the slope setting of drawing in the form of drawing in one side of floor body to have an angle with the axial tangent plane, the tenon upper end wall is to the slope setting of drawing in the form of drawing in one side of floor body, and has an angle with the axial tangent plane; an acute included angle of 0.1-1 degree is formed between the upper end wall of the male tenon and the axial tangent plane, and an acute included angle of 0.1-1 degree is formed between the upper end wall of the female tenon and the axial tangent plane. The utility model provides a hasp structure has the effect of silence.

Description

Mute lock catch structure

Technical Field

The application relates to the technical field of wooden floor hasp structures, concretely relates to mute type hasp structure.

Background

The locking structure is widely applied to the splicing and fixing structures of solid wood floors, composite floors and reinforced floors. Because the wooden floor has the characteristics of dry shrinkage and wet expansion, particularly, the solid wood floor has relatively large size change rate and anisotropy, when the size of the wooden floor is slightly and unevenly deformed, the lock catch structure can be deformed, and therefore when a user tramples on the wooden floor, a sound is generated. In the prior art, the tenon structure and the mortise structure of the lock catch structure are respectively covered with a mute film (transparent PVC or PE film), so that the wood materials of the tenon structure and the mortise structure are not contacted, and the problem of sound is avoided. However, the mode of covering the mute film has poor effect, and the problem of sound is still not solved.

SUMMERY OF THE UTILITY MODEL

The technical purpose of this application lies in, overcomes above-mentioned technical problem to a silence hasp structure is provided, and it can avoid the sound problem that leads to because of the inhomogeneous deformation of wooden floor trace comparatively effectively, thereby makes the hasp structure have the effect of silence.

In order to achieve the technical purpose, the utility model provides a mute lock catch structure, including tenon structure, box structure, the tenon structure includes tenon portion, tenon upper end wall, first chamfer face, tenon lower end wall, tenon convex part, the box structure includes tenon portion, tenon upper end wall, second chamfer face, tenon lower end wall, with the tenon concave part of tenon convex part block fit, the tenon upper end wall is to floor body one side draw in the form slope setting in, and has an angle with the axial tangent plane; an acute included angle of 0.1-1 degree is formed between the upper end wall of the male tenon and the axial tangent plane, and an acute included angle of 0.1-1 degree is formed between the upper end wall of the female tenon and the axial tangent plane.

The inventor practices and researches for a long time to find that the substantial reason that the lock catch structure makes a sound is that in order to prevent the structure of the tenon part of the tenon from being exposed in the splicing gap and achieve an attractive effect, the upper end wall of the tenon and the upper end wall of the box tenon are both designed to be folded and inclined towards one side of the floor body, the angle between the upper end wall of the tenon and the axial tangent plane is about 2-3 degrees, a pair of turning parts can be formed between the upper end wall of the tenon and the first chamfer surface as well as between the upper end wall of the box tenon and the second chamfer surface, and in the expansion process, the pair of turning parts are in contact (form surface contact) so as to make an extrusion sound when being trodden. Furthermore, the inventor finds that the mute films are respectively covered on the male tenon structure and the female tenon structure, and the main reason that the problem of the sound of the lock catch structure cannot be solved is that when the mute films are attached, the area of the first chamfer surface and the area of the second chamfer surface are too small, the mute films are easy to peel off after being attached, the integral attaching effect of the mute films is influenced, and the attractiveness is influenced, so that in the actual production operation, the attaching height of the mute films is about 2-5mm below the first chamfer surface and the second chamfer surface (namely, turning positions) so as to ensure the integral attaching strength and effect of the mute films. A triangular cavity is formed between the obliquely arranged upper end walls of the male tenon and the female tenon, and the thickness of the mute film is about 0.08mm-0.1mm, so that the mute films on two sides are actually positioned in the cavity formed by the upper end walls of the male tenon and the upper end wall of the female tenon. The attachment of the mute film cannot play a role in preventing the contact of a pair of turning parts during the expansion, and further cannot play a role in muting.

In this application, borrow by above-mentioned structure, through reducing the angle (being the inclination of tongue upper end wall) that tongue upper end wall and axial tangent plane have between, box upper end wall and axial tangent plane have between angle (being the inclination of box upper end wall), thereby tongue upper end wall, only form minimum cavity between the box upper end wall, when the tongue structure, behind the attached silence membrane in box structure surface, the thickness of both sides silence membrane is at tongue upper end wall, form the interval between the box upper end wall and support, can avoid wooden floor a pair of turning department contact when the inflation comparatively effectively, thereby avoid the production of sound problem.

As a preferable technical scheme, an acute included angle of 0.2-0.5 degrees is formed between the upper end wall of the male tenon and the axial tangent plane, and an acute included angle of 0.2-0.5 degrees is formed between the upper end wall of the female tenon and the axial tangent plane.

As a preferable technical solution, an angle formed between the upper end wall of the male tenon and the axial tangent plane is equal to an angle formed between the upper end wall of the female tenon and the axial tangent plane.

As a preferable technical scheme, the height of the upper end wall of the male tenon is 5.7mm-5.9mm, and the height of the upper end wall of the female tenon is 5.6mm-5.8 mm.

As a preferable technical solution, the male tenon convex part includes a first convex part side surface, a second convex part side surface, and a convex part top surface, and the female tenon concave part includes a first concave part side surface, a second concave part side surface, and a concave part bottom surface respectively matched with the first convex part side surface, the second convex part side surface, and the convex part top surface, after assembly, the second convex part side surface abuts against the second concave part side surface, and a gap of 0mm to 0.2mm is provided between the first convex part side surface and the first concave part side surface.

Preferably, the first convex side surface abuts against the first concave side surface.

In the prior art, in order to avoid the problem that the convex part of the male tenon is lifted up due to the extrusion of the convex part of the male tenon by the concave part of the female tenon in a wet environment, so as to cause the disengagement of the lock catch, a relatively large gap is reserved between the side surface of the first convex part and the side surface of the first concave part, so that in one aspect, the treading noise of the lock catch is caused. In this technical scheme, set up to relatively less clearance, or no clearance (support and lean on the cooperation) through the reserve clearance with between first convex part side and the first concave part side to can avoid the sound comparatively effectively.

As a preferable technical solution, the tenon structure further includes a front edge convex portion formed on an upper portion of the front edge of the tenon portion, and the mortise structure further includes an inner edge concave portion formed on an inner top surface of the mortise portion, and the inner edge concave portion is engaged with the front edge convex portion.

In the lock catch structure in the prior art, a male tenon convex part is formed on the lower bottom surface of a male tenon part, a female tenon part is arranged on the inner bottom surface of the female tenon part, and locking is realized through the matching of the male tenon part and the female tenon part. However, for the sake of easy assembly, the female dovetail recess is designed as an inverted trapezoidal groove having two inclined groove walls, and the shape of the male dovetail projection matches the shape of the female dovetail recess. The inventor of the application finds that when the wooden floor contracts in a dry environment, two adjacent floor blocks move back to the two sides respectively, and due to the abutting action between the second convex side surface of the male tenon convex part and the second concave side surface of the female tenon concave part, the second convex side surface of the male tenon convex part slides upwards along the second concave side surface of the female tenon concave part in an inclined mode, and finally the lock catch structure is disengaged. When the wooden floor expands in a humid environment, the female tenon concave part in the shape of the inverted trapezoidal groove extrudes the male tenon convex part to lift the male tenon convex part, and finally the lock catch structure is disengaged. Therefore, in the prior art, the gap between the upper end wall of the male tenon and the upper end wall of the female tenon can be reduced only further, so that the pair of turning parts are easy to contact, and the problem of noise is caused.

In the present application, with the above structure, when the wooden floor contracts in a dry environment, the second convex side of the male tenon convex part tends to slide obliquely upward along the second concave side of the female tenon concave part, or when the wooden floor expands in a wet environment, the female tenon concave part presses the male tenon convex part to lift the male tenon convex part, and by the cooperation of the front edge convex part and the inner edge concave part and the cooperation of the male tenon convex part and the female tenon concave part, the front edge convex part abuts against the inner edge concave part, so as to prevent the male tenon structure from falling out of the female tenon structure. From this, this technical scheme's hasp closure stability does not rely on the tight fit between public tenon upper end wall and the box upper end wall to can increase the clearance between public tenon upper end wall and the box upper end wall to a certain extent, further avoid the emergence of sound.

As a preferable technical scheme, the protruding height of the front edge convex part is 0.45mm-0.75 mm.

As a preferable technical scheme, the position where the gap between the upper end wall of the male tenon and the upper end wall of the female tenon is the smallest has a gap of 0-0.2 mm.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

fig. 1 is a schematic view of a silent lock structure according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is another schematic view of the mute lock structure according to the embodiment of the present invention;

in the figure, 110-tenon part, 120-tenon upper end wall, 130-first chamfer, 140-tenon lower end wall, 150-tenon convex part, 160-leading edge convex part, 210-mortise part, 220-mortise upper end wall, 230-second chamfer, 240-mortise lower end wall, 250-mortise concave part, 260-inner edge concave part, 151-first convex part side, 152-second convex part side, 153-convex part top surface, 251-first concave part side, 252-second concave part side, 253-concave part bottom surface, 300-mute film.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In an embodiment, referring to fig. 1 and 2, a silent lock structure includes a tenon structure and a mortise structure, the tenon structure includes a tenon portion 110, a tenon upper end wall 120, a first chamfer surface 130, a tenon lower end wall 140, and a tenon protrusion 150, the mortise structure includes a mortise portion 210, a mortise upper end wall 220, a second chamfer surface 230, a mortise lower end wall 240, and a mortise recess 250 engaged with the tenon protrusion 150, the tenon upper end wall 120 is inclined toward one side of the floor body and forms an angle with the axial tangent plane, the mortise upper end wall 220 is inclined toward one side of the floor body and forms an angle with the axial tangent plane, the tenon upper end wall 120 forms an acute angle α between the axial tangent plane and the tenon upper end wall 220, and forms an acute angle β between the axial tangent plane and the mortise upper end wall 220, wherein the acute angle is 0.1 ° to 1 °.

Preferably, the dovetail upper end wall 120 has an acute included angle α of 0.2-0.5 ° with the axial slice, the box upper end wall 220 has an acute included angle β of 0.2-0.5 ° with the axial slice, and the angle α formed between the dovetail upper end wall 120 and the axial slice is equal to the angle β formed between the box upper end wall 220 and the axial slice, hi this embodiment, the acute included angle α is 0.5 ° and the acute included angle β is 0.5 °.

The height of the upper end wall 120 of the tongue is 5.7mm to 5.9mm and the height of the upper end wall 220 of the box is 5.6mm to 5.8mm, in particular the height of the upper end wall 120 of the tongue differs from the height of the upper end wall 220 of the box by 0.1mm, i.e. there is a gap of 0.1mm between the upper surface of the tongue part 110 and the inner top surface of the box part.

Referring to fig. 3, the male dovetail protrusion 150 includes a first protrusion side surface 151, a second protrusion side surface 152, and a protrusion top surface 153, and the female dovetail recess 250 includes a first recess side surface 251, a second recess side surface 252, and a recess bottom surface 253 respectively engaged with the first protrusion side surface 151, the second protrusion side surface 152, and the protrusion top surface 153, and after assembly, the second protrusion side surface 152 abuts against the second recess side surface 252, and a gap of 0mm to 0.2mm is formed between the first protrusion side surface 151 and the first recess side surface 251. Preferably, the first convex side 151 abuts against the first concave side 251.

In other preferred embodiments, the tenon structure further includes a leading edge protrusion 160 formed on the upper portion of the leading edge of the tenon portion 110, and the mortise structure further includes an inner edge recess 260 formed on the inner top surface of the mortise portion 210, wherein the inner edge recess 260 is engaged with the leading edge protrusion 160. Specifically, the protrusion height of the leading edge protrusion 160 is 0.45mm to 0.75mm (preferably 0.6 mm). At this point, where the gap between the tongue upper end wall 120 and the box upper end wall 220 is minimal, there is a gap of 0-0.2mm (preferably 0.1 mm).

In the embodiment of the application, the male tenon structure and the female tenon structure are manufactured by forming and milling on the four sides of the wooden floor blank.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A silent lock catch structure comprises a tenon structure and a box structure, wherein the tenon structure comprises a tenon part (110), a tenon upper end wall (120), a first chamfer surface (130), a tenon lower end wall (140) and a tenon convex part (150), the box structure comprises a box part (210), a box upper end wall (220), a second chamfer surface (230), a box lower end wall (240) and a box concave part (250) matched with the tenon convex part (150) in a clamping way, the tenon upper end wall (120) is obliquely arranged in a furled way towards one side of a floor body and forms an angle with an axial tangent plane, and the box upper end wall (220) is obliquely arranged in a furled way towards one side of the floor body and forms an angle with the axial tangent plane; the tenon joint is characterized in that an acute angle included angle of 0.1-1 degree is formed between the upper end wall (120) of the male tenon and the axial tangent plane, and an acute angle included angle of 0.1-1 degree is formed between the upper end wall (220) of the female tenon and the axial tangent plane.

2. A silent lock structure as claimed in claim 1, wherein said tongue upper end wall (120) has an acute included angle of 0.2 ° -0.5 ° with respect to the axial tangent plane, and said tongue upper end wall (220) has an acute included angle of 0.2 ° -0.5 ° with respect to the axial tangent plane.

3. A silent lock structure as claimed in claim 1, wherein the angle formed between the male dovetail upper end wall (120) and the axial tangent plane is equal to the angle formed between the female dovetail upper end wall (220) and the axial tangent plane.

4. A silent lock structure as claimed in claim 1, 2 or 3, wherein the height of the male end wall (120) is 5.7mm-5.9mm and the height of the female end wall (220) is 5.6mm-5.8 mm.

5. The silent lock structure as claimed in claim 1, wherein said male tenon extension (150) comprises a first extension side surface (151), a second extension side surface (152), and an extension top surface (153), said female tenon extension (250) comprises a first recess side surface (251), a second recess side surface (252), and a recess bottom surface (253) respectively engaged with said first extension side surface (151), said second extension side surface (152), and said extension top surface (153), after assembly, said second extension side surface (152) abuts against said second recess side surface (252), and a gap of 0mm-0.2mm is formed between said first extension side surface (151) and said first recess side surface (251).

6. A sound-damping locking structure as claimed in claim 5, characterized in that the first convex side (151) abuts against the first concave side (251).

7. The structure of claim 1, wherein the tenon structure further comprises a front edge protrusion (160) formed on the upper portion of the front edge of the tenon portion (110), the mortise structure further comprises an inner edge recess (260) formed on the inner top surface of the mortise portion (210), and the inner edge recess (260) is engaged with the front edge protrusion (160).

8. The structure of claim 7, wherein the height of the front edge protrusion (160) is 0.45mm-0.75 mm.

9. A silent lock structure as claimed in claim 7, wherein the smallest gap between the male end wall (120) and the female end wall (220) is 0-0.2 mm.