CN113006622A

CN113006622A - Invisible hinge and clean room door

Info

Publication number: CN113006622A
Application number: CN202110457320.XA
Authority: CN
Inventors: 夏伟
Original assignee: SHANGHAI OUJIE CLEANROOM TECHNOLOGY CO LTD
Current assignee: SHANGHAI OUJIE CLEANROOM TECHNOLOGY CO LTD
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-06-22

Abstract

The invention relates to an invisible hinge, which is used between a frame body and a fan body to enable the fan body to rotate around the edge of the frame body, and comprises: the first shaft and the second shaft are parallel, mutually staggered by a certain distance and are relatively fixed, wherein the second shaft is a rotating shaft of the invisible hinge; the second shaft is closer to the gap between the fan body and the frame body than the first shaft; one end of the frame body bracket is fixed with the frame body, and the other end of the frame body bracket extends to the end edge of the fan body and limits the second shaft in the radial direction; and the hinge main body is fixed in the fan body in an embedded manner and used for fixing the first shaft. The invention can greatly reduce the distance between the hinge rotating shaft and the door frame, further reduce the gap between the door seams and adjust the door seams within a certain range; the hinge rotating shaft can be enabled to avoid the door bottom sealing strip, and meanwhile, enough installation space for the hinge main body is obtained.

Description

Invisible hinge and clean room door

Technical Field

The invention relates to an invisible hinge and a clean room door, and belongs to the technical field of hinges.

Background

The invisible hinge is characterized in that the hinge main body is not displayed on a door frame or a door leaf, and particularly, after the door is closed, the hinge is hidden and invisible.

The existing invisible hinge has the defects that the hinge is far away from the edge of a door frame, so that a door gap is large, the appearance is influenced, and the requirements of a clean room and other scenes with high airtightness cannot be met; in addition, for the door leaf with the door bottom sealing strip, because the invisible hinge occupies a certain space of the inner cavity of the door leaf, the rotating shaft of the existing invisible hinge interferes with the door bottom sealing strip.

Disclosure of Invention

The invention aims to provide an invisible hinge, which can greatly reduce the distance between a hinge rotating shaft and a door frame, further reduce the gap between door seams and adjust the door seams within a certain range; the hinge rotating shaft can be enabled to avoid the door bottom sealing strip, and meanwhile, enough installation space for the hinge main body is obtained.

The invention adopts the following technical scheme:

an invisible hinge for use between a frame and a fan to rotate the fan around the edge of the frame, comprising: a first shaft 11 and a second shaft 8 which are parallel, mutually staggered with a certain distance and are relatively fixed, wherein the second shaft 8 is a rotating shaft of the invisible hinge; the second shaft 8 is closer to the gap between the fan body and the frame body than the first shaft 11; a frame bracket, one end of which is fixed with the frame body, and the other end of which extends to the end edge of the fan body and limits the second shaft 8 in the radial direction; and a hinge main body 13 embedded and fixed in the fan body and fixing the first shaft 11.

Preferably, the hinge further comprises a bracket fixed on the fan body, and the hinge main body 13 is fixed on the bracket.

Further, a cylindrical cavity for mounting the first shaft 11 is provided in the hinge body 13.

Further, the hinge main body 13 is fixed on the bracket by a fixing screw 18, a chute 14 for mounting the fixing screw 18 is arranged in the hinge main body 13, and the hinge main body 13 can slide on the bracket by loosening the fixing screw 18 to adjust the gap between the fan body and the frame body.

Furthermore, the bracket includes a first bracket 12 and a second bracket 15, the second bracket 15 is fixed on the fan body, the hinge main body 13 is fixed on the second bracket 15 by a fixing screw 18, and the first bracket 12 is fixed at the same time, so as to increase stability.

Preferably, the second shaft 8 is connected to the first shaft 11 by a shaft transition plate 9.

Further, a spring 20 is arranged in the cylindrical cavity, one end of the spring is abutted against the first shaft 11, and the other end of the spring is abutted against the first bracket 12.

Furthermore, a waist-shaped screw hole 17 is formed in the first bracket 12, and when a gap between the fan body and the frame body is adjusted, the waist-shaped screw hole 17 covers a translation range of the fixing screw 18.

Further, the hinge comprises a square key 10, the first shaft 11, the shaft transition plate 9 and the hinge main body 13 are fixed by the square key 10, follow-up rotation is avoided, and the cylindrical cavity is tightly pressed through a second screw 24.

Further, the first bracket and the hinge body are fixedly connected by a first screw, the adjusting baffle is inserted into a hole of the first bracket for tightening and loosening the screw, and the adjusting screw 16 simultaneously passes through the first bracket 12 and the second bracket 15 and abuts against the adjusting baffle 21.

Furthermore, the shaft sleeve further comprises a compression screw 19, wherein the compression screw 19 compresses the first shaft 11 through the first bracket 12, so that the first shaft 11 and the second shaft 8 are prevented from moving up and down, and the second shaft 8 is prevented from being separated from the shaft sleeve.

A clean room door adopts foretell stealthy hinge, the framework is the door frame, and the fan body is the door leaf.

Preferably, the bottom of the door leaf is further provided with a door bottom sealing strip 6, and the second shaft 8 is close to the door gap and is enabled to avoid the position of the door bottom sealing strip 6.

Preferably, the invisible hinge is divided into an upper hinge and a lower hinge, a second shaft 8 of the lower hinge is internally provided with a steel ball, and the steel ball rotates in the shaft sleeve, so that the door can be conveniently opened and closed.

The invention has the beneficial effects that: the distance between the hinge rotating shaft and the door frame can be greatly reduced, so that the gap between the door seams is reduced, and the door seams can be adjusted within a certain range; the hinge rotating shaft can be enabled to avoid the door bottom sealing strip, and meanwhile, enough installation space for the hinge main body is obtained.

Drawings

Fig. 1 is a schematic view of a door leaf and a door frame to which the invisible hinge of the present invention is installed.

Fig. 2 is a cross-sectional schematic view of fig. 1.

Fig. 3 is an enlarged view of the right portion of fig. 2.

Fig. 4 is an enlarged view of the upper right corner of fig. 1.

Fig. 5 is a detail view of the upper invisible hinge of fig. 4.

Fig. 6 is a front and side corresponding sectional view of the lower right corner of fig. 1.

Fig. 7 is a sectional view from a top view of the corresponding portion of fig. 6.

Fig. 8 is a detail view of the lower invisible hinge of fig. 1.

Fig. 9 is a schematic view of the hinge body position adjusted by adjusting the baffle and the adjusting screw, and further the frame and the fan body gap can be adjusted.

In the figure, 1, a nylon sleeve, 2, a door frame upper bracket, 3, a door frame, 4, a door frame lower bracket, 5, a bottom shaft sleeve, 6, a door bottom sealing strip, 7, a door leaf, 701, a door leaf keel, 8, a second shaft, 9, a shaft transition plate, 10, a square key, 10', a square key groove, 11, a first shaft, 12, a first bracket, 13, a hinge main body, 14, a sliding groove, 15, a second bracket, 16, an adjusting screw, 17, a screw hole, 18, a fixing screw, 19, a compression screw, 20, a spring, 21, an adjusting baffle, 22, a steel ball, 23, a door frame lower bracket, 24, a second screw and 25 are first screws.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

The first embodiment is as follows:

the present embodiment takes a common fan body and a frame as an example.

Referring to fig. 1-9, a hidden hinge for use between a frame and a fan to allow the fan to rotate around the edge of the frame, comprising: a first shaft 11 and a second shaft 8 which are parallel, mutually staggered with a certain distance and are relatively fixed, wherein the second shaft 8 is a rotating shaft of the invisible hinge; the second shaft 8 is closer to the gap between the fan body and the frame body than the first shaft 11; a frame bracket, one end of which is fixed with the frame body, and the other end of which extends to the end edge of the fan body and limits the second shaft 8 in the radial direction; and a hinge main body 13 embedded and fixed in the fan body and fixing the first shaft 11.

In this embodiment, see fig. 5-8, there is also included a bracket secured to the fan body, the hinge body 13 being secured to the bracket.

In this embodiment, referring to fig. 5-8, a cylindrical cavity is provided within the hinge body 13 in which the first shaft 11 is mounted.

In this embodiment, referring to fig. 5-8, the hinge body 13 is fixed on the bracket by the fixing screw 18, the sliding slot 14 for installing the fixing screw 18 is arranged in the hinge body 13, and the hinge body 13 can slide on the bracket by loosening the fixing screw 18 to adjust the gap between the fan body and the frame body.

In this embodiment, see fig. 5-8, the bracket comprises a first bracket 12 and a second bracket 15, the second bracket 15 being fixed to the fan body, the hinge body 13 being fixed to the second bracket 15 by means of a set screw 18, and the first bracket 12 being fixed at the same time for increased stability.

In this embodiment, referring to fig. 5-8, the second shaft 8 is connected to the first shaft 11 by a shaft transition plate 9.

In this embodiment, see fig. 5-8, a spring 20 is arranged in the cylindrical cavity, said spring having one end abutting against the first shaft 11 and the other end abutting against the first carrier 12. The first shaft 11 moves during installation and then springs into a sleeve or nylon sleeve.

In this embodiment, referring to fig. 5-8, the first bracket 12 is provided with a waist-shaped screw hole 17, and when the gap between the fan body and the frame body is adjusted, the waist-shaped screw hole 17 covers the range of the translation of the fixing screw 18. The first bracket 12 makes the hinge body 13 more stable, and prevents the fixing screw 18 from sliding out when adjusting the door seam, and is used for fixing a tool for adjusting the seam. The tool for adjusting the set screw 18 is introduced through the aperture. The waist-shaped screw hole 17 is used for accommodating an adjusting baffle plate 21. The adjusting stop 21 is placed in the kidney-shaped threaded hole 17 for abutting against the adjusting screw 16. When it is desired to tighten or loosen the set screw 18, it is removed and a set screw tightening tool (e.g., a socket head wrench) is placed in the oblong-shaped screw hole 17.

In this embodiment, referring to fig. 5-8, the hinge further comprises a square key 10, wherein the square key 10 fixes the first shaft 11, the shaft transition plate 9 and the hinge main body 13 to prevent follow-up rotation, and the cylindrical cavity is pressed by the second screw 24.

In this embodiment, referring to fig. 5-9, the hinge body 13 is fixedly connected to the adjusting stop 21, and the adjusting screw 16 simultaneously passes through the first bracket 12 and the second bracket 15 and abuts against the adjusting stop 21.

In this embodiment, see fig. 5-8, a compression screw 19 is further included, and the compression screw 19 compresses the spring 20 through the first bracket 12 to prevent the first shaft 11 and the second shaft 8 from being displaced up and down, which causes the second shaft 8 to be disengaged from the bushing.

The function of the spring 20 is explained as follows: the installation process is that the door frame is installed firstly, then the door leaf is installed, in order to facilitate the second shaft 8 to enter the shaft sleeve, the compression screw 19 is firstly in a state of being screwed out by most parts, the first shaft 11 presses the spring, and when the second shaft 8 is aligned with the hole (shaft sleeve) in the middle of the shaft, the spring automatically pops in. Finally, the compression screw 19 is tightened again. The spring 20 functions to facilitate installation. The compression screw 19 is passed through the middle of the spring 20. The first shaft 11, the second shaft 8, the square key 10 and the shaft transition plate 9 can move up and down, and the first shaft 11 presses the spring.

The mechanism of regulation: firstly, adjusting left and right, installing an adjusting baffle 21, screwing the adjusting screw 16, and enabling the adjusting baffle 21 to abut against the adjusting screw 16 to enable the hinge main body 13 to move. The adjusting baffle 21 can be taken away, so that the compression screw 19 can be conveniently loosened and tightened. Secondly, the first shaft 11 and the second shaft 8 can move up and down by tightening and loosening the compression screws 19.

The space between the second bracket 15 and the hinge body 13 at the position of the fixing screw 18 is firstly for placing the head of the fixing screw 18 and secondly for limiting the loosening of the fixing screw 18 so as to prevent the fixing screw 18 from falling off.

The first bracket 12 is fixed to the hinge main body 13 by a first screw 25. The role of the first bracket 12: first, the housing screw 19 is fixed, second, it is spacing to the housing screw 18, third for the hinge body is more stable, and fourth, it adjusts the gap about adjusting plate 21 is laid.

Example two:

the embodiment takes a clean room door as an example, and adopts a world hinge form, and the hinge is hidden and invisible after the door is closed. Compared with the common invisible hinge, the invisible hinge has the advantages of flat surface, no place for storing dirt and dirt, and convenience in cleaning.

The main body of the present embodiment is the same as that of the first embodiment.

The difference from the first embodiment is that:

the cleaning room door adopts the invisible hinge, the frame body is a door frame, and the leaf body is a door leaf.

The bottom of the door leaf is also provided with a door bottom sealing strip 6, and the second shaft 8 is close to the door gap and avoids the position of the door bottom sealing strip 6.

The invisible hinge is divided into an upper hinge and a lower hinge, a second shaft 8 of the lower hinge is internally provided with a steel ball, and the steel ball rotates in the shaft sleeve, so that the door can be conveniently opened and closed.

The present embodiment has two key points, firstly, in order to avoid the door leaf from touching the door frame when opening, the center of the hinge axis (i.e. the rotation axis) must be as close as possible to the edge of the door leaf, in this embodiment, the center of the second axis 8 is set to be 8 mm from the edge. Secondly, because the clean door leaf has built-in door bottom sealing strip, has occupied the certain space of door leaf inner chamber, the design of the side that leans on of secondary shaft can also avoid this door bottom sealing strip ingeniously.

The key solution is that a first shaft 11 and a second shaft 8 are arranged and connected through a shaft transition plate 9, so that the two shafts are not on the same line, a door bottom sealing strip is avoided, and a hinge main body is arranged and fixed in a larger space at the upper part.

While the preferred embodiments of the present invention have been described, those skilled in the art will appreciate that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An invisible hinge used between a frame body and a fan body to enable the fan body to rotate around the edge of the frame body, which is characterized by comprising:

the first shaft (11) and the second shaft (8) are parallel, mutually staggered by a certain distance and are relatively fixed, wherein the second shaft (8) is a rotating shaft of the invisible hinge; the second shaft (8) is closer to the gap between the fan body and the frame body than the first shaft (11);

one end of the frame body bracket is fixed with the frame body, and the other end of the frame body bracket extends to the end edge of the fan body and radially limits the second shaft (8);

and a hinge main body (13) which is fixed in the fan body in an embedded manner and fixes the first shaft (11).

2. The invisible hinge of claim 1, wherein: the hinge also comprises a bracket fixed on the fan body, and the hinge main body (13) is fixed on the bracket.

3. The invisible hinge of claim 2, wherein: a cylindrical cavity for mounting the first shaft (11) is arranged in the hinge main body (13).

4. The invisible hinge of claim 2, wherein: the hinge main body (13) is fixed on the bracket through a fixing screw (18), a sliding groove (14) for installing the fixing screw (18) is arranged in the hinge main body (13), and the hinge main body (13) can slide on the bracket by loosening the fixing screw (18) to adjust the gap between the fan body and the frame body.

5. The invisible hinge of claim 4, wherein: the bracket is including being first bracket (12) and second bracket (15), and second bracket (15) are fixed on the fan body, and hinge main part (13) are fixed on second bracket (15) through set screw (18) to first bracket (12) is fixed simultaneously, in order to increase stability.

6. The invisible hinge of claim 1, wherein: the second shaft (8) is connected with the first shaft (11) through a shaft transition plate (9).

7. The invisible hinge of claim 5, wherein: a spring (20) is arranged in the cylindrical cavity, one end of the spring is propped against the first shaft (11), and the other end of the spring is propped against the first bracket (12).

8. The invisible hinge of claim 5, wherein: the first bracket (12) is provided with a waist-shaped screw hole (17), and when the gap between the fan body and the frame body is adjusted, the waist-shaped screw hole (17) covers the translation range of the fixing screw (18).

9. The invisible hinge of claim 5, wherein: still include square key (10), square key (10) are fixed first axle (11), axle cross cab apron (9) and hinge main part (13), avoid following the commentaries on classics to compress tightly through second screw (24) the tube-shape cavity.

10. The invisible hinge of claim 5, wherein: the first bracket (12) and the hinge main body (13) are fixedly connected through a first screw (25), the adjusting baffle plate (21) is inserted into a hole for tightening and loosening the fixing screw of the first bracket (12), and the adjusting screw (16) simultaneously penetrates through the first bracket (12) and the second bracket (15) and abuts against the adjusting baffle plate (21).

11. The invisible hinge of claim 7, wherein: the shaft sleeve is characterized by further comprising a compression screw (19), wherein the compression screw (19) compresses the first shaft (11) through the first bracket (12), and the first shaft (11) and the second shaft (8) are prevented from moving up and down to cause the second shaft (8) to be separated from the shaft sleeve.

12. A clean room door, characterized in that: the invisible hinge of any one of claims 1 to 11 is adopted, wherein the frame body is a door frame, and the leaf body is a door leaf.

13. The clean room door of claim 12, wherein: the bottom of the door leaf is further provided with a door bottom sealing strip (6), and the second shaft (8) is close to the door gap and is enabled to avoid the position where the door bottom sealing strip (6) is located.

14. The clean room door of claim 12, wherein: the invisible hinge is divided into an upper hinge and a lower hinge, a second shaft (8) of the lower hinge is internally provided with a steel ball, and the steel ball rotates in the shaft sleeve, so that the door can be conveniently opened and closed.