CN113585900B

CN113585900B - Concealed hinge capable of being opened and closed sequentially at large angle

Info

Publication number: CN113585900B
Application number: CN202110837906.9A
Authority: CN
Inventors: 胡旭升
Original assignee: Wonly Security And Protection Technology Co ltd
Current assignee: Wonly Security And Protection Technology Co ltd
Priority date: 2021-02-07
Filing date: 2021-07-23
Publication date: 2022-08-16
Anticipated expiration: 2041-07-23
Also published as: CN113585900A; CN112854931A

Abstract

A door and window blind hinge capable of being opened and closed sequentially at large angles comprises: the articulated arm (5) is arranged on a frame hinge pair of a frame hinge end of the articulated arm (5) and a fan hinge pair of a fan hinge end; frame clamping pairs (9) capable of mutually keeping the positioning between the frame hinge shaft (3) and the frame hinge end and fan clamping pairs (10) capable of mutually keeping the positioning between the fan hinge shaft (4) and the fan hinge end are respectively arranged in each hinge pair. In the process of opening the door and the window sash, the frame hinge pair on the frame hinge end is firstly rotated, the leaf hinge pair on the leaf hinge end does not rotate, and then the leaf hinge pair rotates, and the action sequence of the frame hinge pair does not rotate is carried out. The phenomenon that two hinge pairs rotate simultaneously can not occur in the middle, so that the snake-shaped swinging phenomenon of unpredictable swinging range between the fan frames is avoided. Conversely, the process is opposite to the process of closing the door and window.

Description

Concealed hinge capable of being opened and closed sequentially at large angle

Technical Field

The invention relates to the technical field of hinges, in particular to a large-angle concealed hinge which is suitable for a concealed-hinge anti-theft door and can be opened and closed sequentially.

Background

The burglary-resisting door is the essential house security protection articles for use in people's daily life, to the door to the passageway or the balcony, in order to avoid causing the blockking to passageway or balcony after the door and window fan is opened, should adopt to enable the door and window fan can open 180 degrees hinge and connect door and window fan and door and window frame. However, for security doors such as security doors, it is necessary to use a blind hinge that is not accessible from outside the door due to security requirements. The common hidden hinge is arranged in the door and window frame due to the hinge shaft, only a single hinge is provided with a hinge pin shaft which can rotate, and the rotation space is limited by the edge and the internal structure of the anti-theft door and window frame, so that the door and window sash can be opened to about 90 degrees.

In order to solve the above technical problems, some prior arts propose some improved technical solutions. For example, patent document CN1358922A discloses a concealed all-directional door hinge, which includes: the curved connecting rotating arm and the other end are provided with a supporting and mounting shaft seat, one end of the curved connecting rotating arm is provided with a shaft sleeve which can be movably sleeved on a shaft of the supporting and mounting shaft seat, the other end of the curved connecting rotating arm is provided with a hinge type hinge parallel to the supporting and mounting shaft seat, and one blade of the hinge type hinge is fixedly connected with the curved connecting rotating arm. Patent document CN200949375Y discloses a 180-degree blind hinge, comprising: the hinge comprises a hinge seat, a door and window leaf base and a hinge body, wherein one end of the hinge body is hinged with a rotation point, the other end of the hinge body is hinged with the rotation point, the hinge body is provided with a connecting platform, a door and window leaf rotating arm and a portal frame rotating arm are respectively hinged on the connecting platform, one end of the door and window leaf rotating arm is provided with an eccentric wheel, the other end of the door and window leaf rotating arm is hinged with a door and window leaf connecting rod, and the door and window leaf connecting rod is hinged with the rotation point; one end of the portal rotating arm is provided with a spiral cam hole, the other end of the portal rotating arm is hinged to a portal connecting rod, and the portal connecting rod is hinged at a rotating point; the eccentric wheels are arranged in the spiral line cam holes and are meshed with each other. Patent document CN201116426Y discloses a double-shaft linkage blind hinge for a security door, which comprises a door and window frame hinge body, a door and window sash hinge body, a rotating shaft, a door and window sash hinge seat, a door and window sash, a rotating shaft, a door and window frame hinge seat and a door and window frame; the device also comprises a chute plate, a linkage rod and a gear swinging block; the sliding block on the linkage rod slides in the sliding groove of the sliding plate groove, so that the gear swinging block can determine when to fix or release the hinge seat of the door and window sash according to the shape of the sliding groove on the sliding groove, and the two rotating shafts on the hinge can rotate successively. Patent document CN 106168091B discloses a large-opening blind hinge comprising a door and window sash hinge base, a hinge arm, a rotation limiting frame, and a movable door and window frame hinge shaft.

The prior art disclosed in the above patent documents CN200949375Y, CN201116426Y, CN 106168091B all require a plurality of hinge shafts to be connected between the door frame and the door leaf, and in order to prevent the plurality of hinges from snaking during the opening process, it is also necessary to provide a running track for some shafts to ensure that the opening is completed according to a predetermined rotation mode, so that the structure is complex, the manufacturing cost is high, and the use is not smooth. In CN1358922A, only two hinge structures, namely, the mounting shaft seat on one end of the curved rotation link arm and the hinge on the other end, are provided, although the mounting shaft seat is limited by the door frame structure before opening, only the mounting shaft seat can rotate, but the hinge cannot rotate, but once the door leaves the door frame, the rotation of the two hinge shafts is not limited, so the swing range of the door and window sash becomes unpredictable during the opening and closing process of the door and window sash, and the danger of accidental collision of people or objects can be brought during the use. In addition, it is difficult to smoothly complete the opening or closing of the window and door sash during the opening and closing of the window and door sash.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the problem that the blind hinge capable of opening 180 degrees in the prior art needs to provide a complex running track for some shafts to limit the unpredictable snake-shaped swinging phenomenon of the swinging range. Thereby providing a blind hinge for doors and windows which can be opened and closed in sequence at a large angle.

In order to solve the above technical problems, the present invention provides a blind hinge for doors and windows capable of being opened and closed at a large angle in sequence, comprising:

the frame hinge shaft is fixedly arranged in the frame space of the door and window frame in parallel with the relative rotation axis of the frame and the sash;

the sash hinge shaft is parallel to the frame hinge shaft and is fixedly arranged in the sash space of the door and window sash;

the two ends of the hinged arm are respectively a frame hinged end and a fan hinged end, the frame hinged end is hinged with the frame hinged shaft and has a shape suitable for being retracted into and extending out of the space in the frame, and the fan hinged end is hinged with the fan hinged shaft and has a shape suitable for being retracted into and extending out of the space in the fan;

frame clamping pairs capable of keeping positioning mutually are arranged between the frame hinge shaft and the frame hinge end, and fan clamping pairs capable of keeping positioning mutually are arranged between the fan hinge shaft and the fan hinge end; when the door and window sash is in a completely open state, the frame clamping pair is in a positioning maintaining state, and the sash clamping pair is in a positioning releasing state; in the fully closed state of the door and window sash, the frame clamping pair is in a positioning release state, and the sash clamping pair is in a positioning maintaining state; in operation, at least frame joint vice with it plays the effect that keeps the location to fan joint one of vice, and frame joint is vice reaches when the vice location effect that plays of fan joint simultaneously, or receive door and window frame auxiliary resistance effect and keep the vice location effect of frame joint, and remove the vice location effect of a joint under the effort of the casement of further closing the door, or receive door and window fan auxiliary resistance effect and keep the vice location effect of a joint, and remove the vice location effect of frame joint under the effort of further opening door and window fan.

Further, from the complete closing state of the door and window sash to the state that the frame clamping pair is kept positioned, the frame hinge end rotates 90 degrees relative to the frame hinge shaft; from the complete open state of the door and window sash to the state that the sash clamping pair is in the unlocking state, the sash hinged end rotates 90 degrees relative to the sash hinged shaft.

Furthermore, the frame clamping pair comprises a movable clamping piece arranged on one of the frame hinge shaft and the frame hinge end and a clamping matching structure arranged on the other frame hinge shaft and suitable for clamping and positioning with the movable clamping piece, and the movable clamping piece is subjected to biasing force tending to be clamped into the clamping matching structure; or the fan clamping pair comprises a movable clamping piece arranged on the fan hinge shaft and one of the fan hinge ends and a clamping matching structure arranged on the other hinge shaft and suitable for being clamped and positioned with the movable clamping piece, and the movable clamping piece is biased to be clamped into the clamping matching structure.

Furthermore, move the joint spare and be a restriction rotation and set up with axial slip frame hinge or but the epaxial sliding sleeve of fan hinge, joint cooperation structure has fixed the setting and is in frame hinge connects the end or fan hinge connects and faces towards the fitting surface of sliding sleeve the sliding sleeve orientation the tip of fitting surface is equipped with the stuck point correspondingly the shaping is in on the fitting surface be suitable for the draw-in groove that the stuck point card was gone into.

Further, the sliding sleeve is arranged above the matching surface, and the biasing force is formed by the self gravity.

Further, a spring which applies the biasing force towards the matching surface to the sliding sleeve is arranged on the sliding sleeve.

Furthermore, the matching surface is arranged on one end surface of a shaft sleeve which is rotatably sleeved on the frame hinge shaft or the fan hinge shaft and faces the sliding sleeve, and the shaft sleeve is fixedly connected with the frame hinge end or the fan hinge end.

Further, the shaft sleeve is provided with a sleeve fixedly connected with the frame hinged end or the fan hinged end, the shaft hole of the sleeve is provided with an inner cavity with an enlarged diameter, and the inner cavity extends axially and forms a cavity port at one end of the sleeve; the shaft sleeve is also provided with a sealing block which is arranged at the cavity opening of the inner cavity and can be rotatably sleeved on the frame hinge shaft or the fan hinge shaft; the sleeve and the sealing block are provided with corresponding pin holes, and a pin penetrating through the pin holes on the sleeve and the sealing block fixes the sleeve and the sealing block together; the sliding sleeve is arranged in the inner cavity, and the matching surface is arranged on the sealing block.

Further, the hinge arm has a curved cross-sectional structure with an opening, and cross-sectional ends adjacent to the opening respectively form the frame hinge end and the leaf hinge end.

Furthermore, the hinged arm is composed of a frame end folding arm close to the frame hinged end, a fan end folding arm close to the fan hinged end, and a connecting arm for connecting one end of the frame end folding arm far away from the frame hinged end and one end of the fan end folding arm far away from the fan hinged end.

Furthermore, the connecting arm is composed of a frame connecting piece connected with the frame end folding arm and a fan connecting piece connected with the fan end folding arm, corresponding connecting holes are formed in the frame connecting piece and the fan connecting piece, at least one connecting hole in the frame connecting piece or the fan connecting piece is an adjusting long hole, and the frame connecting piece and the fan connecting piece are adjustably connected through a connecting screw penetrating through the connecting holes.

The frame hinge shaft is fixedly arranged in the frame hinge box; the auxiliary resistance function of the door and window frame is applied during the work so as to keep the positioning function of the clamping pair of the frame. The sash hinge box is fixedly installed in the door and window sash to form a sash space, and the sash hinge shaft is fixedly installed in the sash hinge box; the auxiliary resistance of the door and window sash is applied during the work so as to keep the positioning function of the clamping pair of the sash.

The invention provides a door and window, which comprises door and window sashes and a door and window frame; the door and window sash and the door and window frame are hinged and connected through the door and window blind hinges which can be opened and closed in sequence at a large angle in any one of the schemes.

The technical scheme of the invention has the following advantages:

1. the invention provides a door and window blind hinge capable of opening and closing in sequence with large angles.A clamping pair is respectively arranged on two hinge pairs according to a preset positioning sequence, and the clamping pairs on the two hinge pairs realize positioning and disengagement matching relation according to the preset sequence by matching with a part fixed with a door and window sash frame, so that the rotation sequence of a frame hinge shaft and a frame hinge end and the rotation sequence of a sash hinge shaft and a sash hinge end in the working movement process are controlled. Therefore, the problem of the snake-shaped swinging phenomenon of unpredictable swinging range caused by two hinge pairs of the hidden hinge is solved through a simple mechanical structure.

2. The door and window hidden hinge capable of being opened and closed in sequence at large angles provided by the invention has the advantages that the corresponding hinge pair rotates for 90 degrees relatively from the state that the door and window sash is completely closed or opened to the state that the clamping pair is not in the positioning state, so that the door and window hidden hinge can be opened at 180 degrees, and a gear for opening 90 degrees is generated.

3. The movable clamping connecting pieces which limit rotation and can axially slide are arranged on the hinge shafts and are matched with clamping grooves on matching surfaces fixedly arranged with the hinge shafts. The door and window blind hinge capable of being opened and closed in sequence at a large angle has the advantages of simple structure, convenience in manufacturing and assembling, and smoothness and reliability in use.

4. The matching surface is arranged on the shaft sleeve end surface which is rotatably sleeved on the frame hinge shaft or the fan hinge shaft, so that the structure is simpler. And the independent shaft sleeve and the shaft sleeve matched with each hinged end for fixed connection make the processing of the clamping structure on the matching surface more convenient.

5. The connecting arm is split into two parts and connected through the adjustable structure, so that the door and window blind hinge capable of being opened and closed in sequence at a large angle can be properly adjusted, and the door and window can be conveniently installed.

6. The hinge boxes are respectively arranged on the hinge shafts, so that the door and window blind hinge capable of being opened and closed in sequence at a large angle can be a product capable of independently realizing the technical scheme, and the hinge can be conveniently installed on a door and window frame.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below.

FIG. 1 is a perspective view of an assembly of a blind hinge for doors and windows capable of opening and closing at a large angle in sequence according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the embodiment of FIG. 1 with the hinge arm removed;

FIG. 3 is a schematic perspective view of the sliding sleeve in the embodiment shown in FIG. 1;

FIG. 4 is a schematic perspective view of the frame hinge shaft and the fan hinge shaft of the embodiment shown in FIG. 1;

FIG. 5 is a schematic perspective view of a portion of the bushing of the embodiment shown in FIG. 1;

FIG. 6 is an enlarged view of A, B showing a partial snap-fit relation in FIG. 2 in a state where the door sash is completely closed in the embodiment shown in FIG. 1;

FIG. 7 is a plan view of the embodiment shown in FIG. 1 in a state where the door sash is completely closed;

FIG. 8 is an enlarged view showing A, B portions of a snap-fit relation in FIG. 2 in a state where the door sash is opened by 90 degrees in the embodiment shown in FIG. 1;

FIG. 9 is a plan view of the embodiment shown in FIG. 1, in a state where the door sash is opened by 90 degrees;

FIG. 10 is an enlarged view of A, B showing a partial snap-fit relationship in FIG. 2 in a state where the door sash is fully opened in the embodiment shown in FIG. 1;

FIG. 11 is a plan view of the embodiment shown in FIG. 1, in a state where the door sash is fully opened;

FIG. 12 is a cross-sectional view of a sleeve in a bushing of an alternative embodiment of the blind hinge for windows and doors of the present invention that can be opened and closed at a large angle in sequence;

FIG. 13 is an exploded perspective view of the bushing of the embodiment of FIG. 12;

FIG. 14 is a perspective view, partially in section, of the hinge pair of the embodiment of FIG. 12;

fig. 15 is a perspective view of an alternative embodiment of the blind hinge for doors and windows capable of opening and closing at a large angle in sequence according to the present invention.

Description of reference numerals:

1-frame hinge box, 2-frame hinge box, 3-frame hinge shaft, 4-frame hinge shaft, 5-hinge arm, 6-frame end folding arm, 7-frame end folding arm, 8-connection arm, 9-frame clamping pair, 10-frame clamping pair, 11-sliding sleeve, 12-shaft sleeve, 13-matching surface, 14-clamping point, 15-clamping groove, 16-spring, 17-first side edge, 18-second side edge, 19-sleeve, 20-inner cavity, 21-sealing block, 22-pin and 23-adjusting long hole.

Detailed Description

The technical scheme of the invention is clearly and completely described in the following with reference to the attached drawings.

Referring to fig. 1, the door and window blind hinge capable of opening and closing in sequence in a large angle comprises a frame hinge box 1 and a sash hinge box 2, wherein the frame hinge box 1 is suitable for being fixedly arranged in a door and window frame to form a frame inner space, and the sash hinge box 2 is suitable for being fixedly arranged in a sash inner space formed in a sash of a door and window; a frame hinge shaft 3 is fixedly arranged in the frame hinge box 1 in parallel with the relative rotation axis of the frame and the sash; a sash hinge shaft 4 is fixedly arranged in the sash hinge box 2 in parallel with the frame hinge shaft 3; and the two ends of the hinge arm are respectively a frame hinge end and a fan hinge end 5, the frame hinge end is hinged with the frame hinge shaft 3 and has a shape suitable for being retracted into and extended out of the space in the frame, and the fan hinge end is hinged with the fan hinge shaft 4 and has a shape suitable for being retracted into and extended out of the space in the fan. In this embodiment, the hinge arm 5 has a curved cross-section with an opening, and the ends of the cross-section adjacent to the opening form the frame hinge end and the leaf hinge end, respectively. Referring to fig. 1, the hinge arm 5 is composed of a frame-end hinge arm 6 adjacent to the frame hinge end, a fan-end hinge arm 7 adjacent to the fan hinge end, and a link arm 8 connecting one end of the frame-end hinge arm 6 remote from the frame hinge end and one end of the fan-end hinge arm 7 remote from the fan hinge end. In the door and window blind hinge capable of opening and closing at large angles in sequence, a frame clamping pair 9 capable of keeping positioning mutually is arranged between the frame hinge shaft 3 and the frame hinge end, and a sash clamping pair 10 capable of keeping positioning mutually is arranged between the sash hinge shaft 4 and the sash hinge end; when the door and window sash is completely opened, the frame clamping pair 9 is in a positioning maintaining state, and the sash clamping pair 10 is in a positioning releasing state; in the complete closing state of the door and window sash, the frame clamping pair 9 is in a de-positioning state, and the sash clamping pair 10 is in a holding and positioning state. In operation, at least frame joint pair 9 with one of the vice 10 of fan joint plays the effect that keeps the location, and frame joint pair 9 reaches when the vice 10 of fan joint plays the location effect simultaneously, or receive door and window frame auxiliary resistance effect and keep the vice 9 location effect of frame joint, and remove the vice 10 location effect of fan joint under the effort of the casement of further closing the door, or receive door and window fan auxiliary resistance effect and keep the vice 10 location effect of fan joint, and remove the vice 9 location effect of frame joint under the effort of further opening door and window fan. In this embodiment, from the fully closed state of the door and window sash to the state that the frame clamping pair 9 is kept in the positioning state, the frame hinge end rotates 90 degrees relative to the frame hinge shaft 3; from the completely opened state of the door and window sash to the state that the sash clamping pair 10 is in the unlocking state, the sash hinge end rotates 90 degrees relative to the sash hinge shaft 4.

Referring to fig. 2, the frame clamping pair 9 includes a sliding sleeve 11 disposed on the frame hinge shaft 3 as a movable clamping member and a clamping matching structure disposed on the frame hinge end and adapted to be clamped and positioned with the sliding sleeve 11. Referring to fig. 3, the inner hole of the sliding sleeve 11 is a non-circular cut-edge circular hole, referring to fig. 4, a section of non-circular cut-edge circular column slidably mounted with the sliding sleeve 11 is correspondingly formed on the frame hinge shaft 3 sleeved with the sliding sleeve 11, and thus referring to fig. 1 and 2, the sliding sleeve 11 is limited to rotate by the matching of the cut-edge circular hole and the cut-edge circular column and can be axially slidably disposed on the frame hinge shaft 3. Referring to fig. 5, the snap-fit structure has a shaft sleeve 12 fixedly disposed at the hinge end of the frame, the shaft sleeve 12 is rotatably sleeved on the hinge shaft 3 of the frame, and an end surface facing the sliding sleeve 11 forms a fit surface 13. In the present embodiment, referring to fig. 1 to 3, a clamping point 14 is provided at the end of the sliding sleeve 11 facing the mating surface 13. Referring to fig. 1, 2 and 5, a locking groove 15 adapted to lock the locking point 14 is formed on the mating surface 13. The sliding sleeve 11 is subjected to a biasing force tending to cause the snap points 14 at its ends to snap into the snap slots 15 on the mating surface 13. In this embodiment, referring to fig. 1 and 2, the sliding sleeve 11 is disposed above the mating surface 13, and constitutes the biasing force by its own weight. In addition, in order to ensure the effect of the biasing force, a coil spring 16 is provided on the slide sleeve 11 to apply the biasing force to the slide sleeve 11 toward the mating surface 13. Correspondingly, the fan clamping pair 10 also comprises a sliding sleeve 11 arranged on the fan hinged shaft 4 and used as a movable clamping piece, and a clamping matching structure arranged on the hinged end of the fan and suitable for being clamped and positioned with the sliding sleeve 11. In this embodiment, the frame latch pair 9 and the fan latch pair 10 have the same structure, but in other embodiments, they may have different structures.

In a practical installation manner, referring to fig. 1, taking the fan hinge pair as an example, the fan hinge shaft 4 passes through the upper installation hole of the fan hinge box 2 and the shaft hole of the shaft sleeve 12 fixed on the fan hinge end of the hinge arm 5, and passes through the coil spring 16 and the trimming circular hole of the sliding sleeve 11 simultaneously when passing through the gap between the upper and lower portions of the shaft sleeve 12, as shown in fig. 1. So that the sliding sleeve 11 cooperates with a section of non-circular section of the cut-edge circular column on the hinge shaft 4 to keep the sliding sleeve 11 axially slidable but not rotatable with respect to the hinge shaft 4. And further, the fan hinge shaft 4 penetrates through a lower mounting hole of the fan hinge box 2, and the fan hinge shaft 4 is fixedly connected with the fan hinge box 2 in a non-rotatable manner. In this embodiment, the assembly manner of the frame hinge pair is the same as that of the fan hinge pair. After that, in the state that the door and window leaf frame is completely closed, the clamping point 14 on the sliding sleeve 11 in the leaf hinge pair connected to the leaf hinge end is mutually matched and clamped with the clamping groove 15 arranged on the matching surface 13 at one end part of the shaft sleeve 12, and the clamping point 14 on the sliding sleeve 11 in the frame hinge pair connected to the frame hinge end is not mutually clamped with the clamping groove 15 arranged on the matching surface 13 at one end part of the shaft sleeve 12, as shown in fig. 6.

In the present embodiment, in the fully closed state of the door and window sash, the clamping and positioning relationship between the frame hinge pair and the sash hinge pair is as shown in fig. 6, and fig. 7 shows a top view of the door and window blind hinge capable of opening and closing sequentially at a large angle in the state. The clamping point 14 on the sliding sleeve 11 in the fan hinge pair is in clamping and positioning fit with the clamping groove 15 on the matching surface 13 on the shaft sleeve 12, and a larger resistance is formed under the action of the self gravity of the sliding sleeve 11 and the elastic force of the spring 16, as shown in fig. 6 (b). And the clamping point 14 of the sliding sleeve 11 in the frame hinge pair and the clamping groove 15 on the matching surface 13 of the shaft sleeve 12 are in a mutually disconnected relationship, see fig. 6 (a). Therefore, when the door and window sash is opened, the clamping point 14 on the sliding sleeve 11 and the clamping groove 15 on the matching surface 13 of the shaft sleeve 12 in the frame hinge pair are in a mutually disconnected state, and only friction resistance between the sliding sleeve 11 and the shaft sleeve 12 caused by biasing force is borne, and the friction resistance is obviously smaller than the larger resistance formed by clamping and positioning matching of the clamping point 14 on the sliding sleeve 11 and the clamping groove 15 on the matching surface 13 on the shaft sleeve 12 in the sash hinge pair, so that the sash hinge pair does not generate hinge rotation when the door and window sash is opened, and the shaft sleeve 12 in the frame hinge pair does rotary motion around the frame hinge shaft 3. When the hinged arm 5 rotates around the frame hinge shaft 3 to 90 degrees along with the opening action, the sliding sleeve 11 in the frame hinge pair is under the action of its own gravity and the elastic force of the spring 16, so that the clamping point 14 on the sliding sleeve 11 is clamped with the clamping groove 15 on the matching surface 13 of the shaft sleeve 12 of the frame hinge pair and mutually clamped to form a positioning point, which is shown in fig. 8 (a). While the leaf hinge pair is still in a snap-fit engagement, see fig. 8 (b). Meanwhile, referring to fig. 9, the side of the frame end folding arm 6 of the hinge arm 5 contacts with the first side 17 of the opening hole of the frame hinge box 1 fixed on the door and window frame to form a fixed stop point, and the 90-degree opening positioning of the door and window sash is realized as shown in fig. 9. When the door and window sash is opened by external force continuously, the frame hinge pair and the sash hinge pair are in clamping, positioning and matching states. However, in this case, the side of the frame-end flap 6 of the hinge arm 5 comes into contact with the first side 17 of the opening of the frame hinge box 1 fixed to the sash to form a fixed stop. The shaft sleeve 12 in the frame hinge pair is thus limited from continuing to rotate relative to the frame hinge shaft 3, that is, the clamping point 14 of the sliding sleeve 11 in the frame hinge pair and the clamping groove 15 on the mating surface 13 of the shaft sleeve 12 are kept in a clamping and positioning state with each other, see fig. 10 (a). Therefore, the external force overcomes the resistance force formed by the shape fit of the clamping point 14 on the sliding sleeve 11 and the clamping groove 15 and the elastic force of the spring 16 in the fan hinge pair connected with the fan hinge end, so that the clamping point 14 slides out of the clamping groove 15 on the matching surface 13 of the corresponding shaft sleeve 12, the clamping point 14 on the sliding sleeve 11 and the clamping groove 15 on the matching surface 13 of the shaft sleeve 12 are mutually separated, and the clamping point 14 can slide on the matching surface 13 of the shaft sleeve 12, which is shown in fig. 10 (b). When the angle is 180 degrees, as shown in fig. 11, the side of the fan-end folding arm 7 with the fan hinged end contacts with the second side 18 of the opening hole on the hinge box 2 fixed on the door and window fan, forming a fixed stop point, and stopping the movement. And the positioning function is realized through friction force under the action of the self gravity of the sliding sleeve 11 and the elastic force of the spring 16 in the fan hinge pair.

Briefly, the process of opening the door and window sash is as follows: firstly, the frame hinge pair on the frame hinge end is rotated to prevent the fan hinge pair on the fan hinge end from rotating, and then the fan hinge pair is rotated to prevent the frame hinge pair from rotating. The phenomenon that two hinge pairs rotate simultaneously can not occur in the middle, so that the snake-shaped swinging phenomenon of unpredictable swinging range between the fan frames is avoided.

When the door and window sash is closed in the fully opened state as shown in fig. 11, the fastening point 14 of the sliding sleeve 11 in the sash hinge pair at the sash hinge end is not located in the fastening groove 15 of the shaft sleeve 12, and the fastening point 14 of the sliding sleeve 11 in the frame hinge pair at the frame hinge end is located in the fastening groove 15 of the shaft sleeve 12, that is, the shaft sleeve 12 and the sliding sleeve 11 in the sash hinge pair are in the disengaged position, while the shaft sleeve 12 and the sliding sleeve 11 in the frame hinge pair are in the fastened position, as shown in fig. 10. The resistance of the fan hinge pair is significantly less than the resistance of the frame hinge pair. Thus, the pivot motion of the fan hinge pair on the fan hinge end is realized, and the frame hinge pair on the frame hinge end does not rotate. When the door and window sash rotates 90 degrees around the sash hinge shaft 4, the sliding sleeve 11 in the sash hinge pair is under the action of the self gravity and the elastic force of the spring 16, so that the clamping point 14 on the sliding sleeve 11 is clamped with the clamping groove 15 on the matching surface 13 of the shaft sleeve 12 of the frame hinge pair and mutually clamped to form a positioning point, which is shown in fig. 8 (b). While the frame hinge pair is still in a snap-fit engagement, see fig. 8 (a). Meanwhile, referring to fig. 9, the bottom wall of the hinge box 2 contacts the end folding arm 7 of the hinge arm 5 to limit the further movement of the hinge pair in the closing direction, so as to form a fixed stop point, and at this time, the 90-degree opening positioning of the door and window sash shown in fig. 9 is realized. When the action of closing the door and window is further applied, the bottom wall of the hinge box 2 abuts against the fan-end folding arm 7 of the hinge arm 5 to prevent the hinge pair from rotating, and the acting force acting on the frame hinge pair overcomes the resistance force formed by the clamping shape of the clamping point 14 and the clamping groove 15 on the sliding sleeve 11 in the frame hinge pair matching with the self gravity of the sliding sleeve 11 and the elastic force of the spring 16, so that the clamping point 14 slides out of the clamping groove 15 on the matching surface 13 of the corresponding shaft sleeve 12, the clamping point 14 on the sliding sleeve 11 and the clamping groove 15 on the matching surface 13 of the shaft sleeve 12 are separated from each other, and the clamping point 14 can slide on the matching plane of the shaft sleeve 12, as shown in fig. 6 (a).

It can be seen that the process of closing the door and window sash is as follows: firstly, the action sequence that the fan hinge pair on the fan hinge end is rotated and the frame hinge pair on the frame hinge end is not rotated is carried out, and then the fan hinge pair is not rotated and the frame hinge pair is rotated is carried out. The phenomenon that two hinge pairs rotate simultaneously can not occur in the middle, so that the snake-shaped swinging phenomenon of unpredictable swinging range between the fan frames is avoided.

In other embodiments, the positions of the card slot 14 and the mating card slot 15 in the above embodiments may be interchanged.

In an alternative embodiment, the movable clamping piece in the above embodiment may be replaced by a sliding pin arranged on the shaft sleeve 12 and sliding along the axial direction, the clamping fit structure is a short column body fixed on the frame hinge shaft 3 or the sash hinge shaft 4, an end surface of the short column body facing the sliding pin is used as the fit surface 13, and a clamping groove 15 suitable for clamping and sliding out of the sliding pin is formed on the fit surface 13. Wherein the slide pin is biased towards the card slot 15 by a spring 16.

In an alternative embodiment, the sleeve 12 of the previous embodiment has a sleeve 19 fixedly connected to the hinge end of the frame or the hinge end of the fan, see fig. 12, the axial bore of the sleeve 19 having an enlarged diameter internal cavity 20, the internal cavity 20 extending axially and forming a cavity at the end of the sleeve 19. Referring to fig. 13, the shaft sleeve 12 further has a sealing block 21 disposed at the cavity opening of the inner cavity 20 and rotatably sleeved on the frame hinge shaft 3 or the fan hinge shaft 4; the sleeve 19 and the sealing block 21 are formed with corresponding pin holes, and a pin 22 penetrating through the pin holes of the sleeve 19 and the sealing block 21 fixes the sleeve 19 and the sealing block 21 together; referring to fig. 14, the sliding sleeve 11 is disposed in the inner cavity 20, and the mating surface 13 is disposed on the sealing block 21. In the installation process, referring to fig. 14, the coil spring 16 and the sliding sleeve 11 are first placed in the inner cavity 20 with the diameter of the shaft hole of the sleeve 19 enlarged, the sealing block 21 is installed at the cavity opening of the inner cavity 20, and the pin 22 passes through the pin holes of the sleeve 19 and the sealing block 21 to fix the sleeve 19 and the sealing block 21 together. Then, the frame hinge shaft 3 or the sash hinge shaft 4 passes through the upper mounting hole of the frame hinge box 1 or the sash hinge box 2, and sequentially passes through the shaft hole of the sleeve 19, the coil spring 16, the trimming circular hole of the sliding sleeve 11, and the shaft hole of the seal block 21, and finally passes through the lower mounting hole of the frame hinge box 1 or the sash hinge box 2 and is fixed.

Referring to fig. 15, in the above embodiment, the connecting arm 8 is composed of a frame connecting piece connected to the frame end folding arm 6 and a sash connecting piece connected to the sash end folding arm 7, corresponding connecting holes are formed in the frame connecting piece and the sash connecting piece, at least one of the connecting holes in the frame connecting piece or the sash connecting piece is an adjusting long hole 23, and the frame connecting piece and the sash connecting piece are adjustably connected by a connecting screw passing through the connecting hole.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. A door and window blind hinge capable of being opened and closed sequentially at large angles comprises:

the frame hinge shaft (3) is fixedly arranged in the frame inner space of the door and window frame in parallel with the relative rotation axis of the frame and the sash;

the sash hinge shaft (4) is parallel to the frame hinge shaft (3) and is fixedly installed in a sash inner space of the door and window sash;

a hinged arm (5), two ends of which are respectively a frame hinged end and a fan hinged end, wherein the frame hinged end is hinged with the frame hinged shaft (3) and has a shape suitable for being retracted into and extending out of the space in the frame, and the fan hinged end is hinged with the fan hinged shaft (4) and has a shape suitable for being retracted into and extending out of the space in the fan;

it is characterized in that the preparation method is characterized in that,

a frame clamping pair (9) capable of keeping positioning mutually is arranged between the frame hinge shaft (3) and the frame hinge end, and a fan clamping pair (10) capable of keeping positioning mutually is arranged between the fan hinge shaft (4) and the fan hinge end; when the door and window sash is completely opened, the frame clamping pair (9) is in a positioning maintaining state, and the sash clamping pair (10) is in a positioning releasing state; in the complete closing state of the door and window sash, the frame clamping pair (9) is in a positioning release state, and the sash clamping pair (10) is in a positioning maintaining state; in operation, at least frame joint is vice (9) with one of the vice (10) of fan joint plays the effect that keeps the location, and frame joint is vice (9) and when fan joint is vice (10) play the location effect simultaneously, or receive door and window frame auxiliary resistance effect and keep the location effect of the vice (9) of frame joint, and relieve the location effect of the vice (10) of fan joint under the effort of the casement of further closing the door, or receive door and window fan auxiliary resistance effect and keep the location effect of the vice (10) of fan joint, and relieve the location effect of the vice (9) of frame joint under the effort of further opening the door and window fan.

2. The door and window blind hinge capable of being opened and closed at large angles in sequence according to claim 1 is characterized in that the frame hinge end rotates 90 degrees relative to the frame hinge shaft (3) from the complete closing state of door and window leaves to the state that the frame clamping pair (9) is kept in a positioning state; from the complete open state of the door and window sash to the state that the sash clamping pair (10) is in the unlocking state, the sash hinged end rotates 90 degrees relative to the sash hinged shaft (4).

3. The door and window blind hinge capable of opening and closing at large angles in sequence according to claim 1 or 2, characterized in that:

the frame clamping pair (9) comprises a movable clamping piece arranged on one of the frame hinge shaft (3) and the frame hinge end and a clamping matching structure arranged on the other frame hinge shaft and suitable for clamping and positioning with the movable clamping piece, and the movable clamping piece is subjected to biasing force tending to be clamped into the clamping matching structure;

or

The fan joint is vice (10) including setting up fan hinge (4) with one of fan hinged end on one move the joint spare and set up on another be suitable for with move the joint cooperation structure that the joint spare joint was fixed a position, move the joint spare and receive one and tend to block into the biasing force of joint cooperation structure.

4. The blind hinge for doors and windows capable of opening and closing at large angles in sequence as claimed in claim 3, wherein the movable clamping member is a sliding sleeve (11) which limits rotation and is axially slidably arranged on the frame hinge shaft (3) or the sash hinge shaft (4), the clamping and matching structure is provided with a matching surface (13) which is fixedly arranged on the frame hinge end or the sash hinge end and faces the sliding sleeve (11), a clamping point (14) is arranged at the end of the sliding sleeve (11) facing the matching surface (13), and a clamping groove (15) suitable for the clamping point (14) to clamp is correspondingly formed on the matching surface (13).

5. The blind hinge for doors and windows capable of opening and closing at large angles in sequence as claimed in claim 4, wherein the sliding sleeve (11) is arranged above the matching surface (13) and forms the biasing force by self gravity.

6. The door and window blind hinge capable of opening and closing at large angles in sequence according to claim 4 or 5, characterized in that:

and a spring (16) which applies the biasing force towards the matching surface (13) to the sliding sleeve (11) is also arranged on the sliding sleeve (11).

7. The door and window blind hinge capable of being opened and closed sequentially at a large angle according to claim 4, is characterized in that:

the matching surface (13) is arranged on one end face, facing the sliding sleeve (11), of a shaft sleeve (12) of the frame hinge shaft (3) or the fan hinge shaft (4) in a sleeved mode in a rotating mode, and the shaft sleeve (12) is fixedly connected with the frame hinge end or the fan hinge end.

8. The door and window blind hinge capable of being opened and closed at large angles in sequence according to claim 7, is characterized in that:

the shaft sleeve (12) is provided with a sleeve (19) fixedly connected with the hinge joint end of the frame or the hinge joint end of the fan, the shaft hole of the sleeve (19) is provided with an inner cavity (20) with an enlarged diameter, and the inner cavity (20) axially extends and forms a cavity opening at one end of the sleeve (19); the shaft sleeve (12) is also provided with a sealing block (21) which is arranged at the cavity opening of the inner cavity (20) and can be rotatably sleeved on the frame hinge shaft (3) or the fan hinge shaft (4); the sleeve (19) and the sealing block (21) are provided with corresponding pin holes, and a pin (22) penetrating through the pin holes on the sleeve (19) and the sealing block (21) fixes the sleeve (19) and the sealing block (21) together; the sliding sleeve (11) is arranged in the inner cavity (20), and the matching surface (13) is arranged on the sealing block (21).

9. The door and window blind hinge capable of being opened and closed at large angles in sequence according to claim 1, is characterized in that:

the hinge arm (5) is of a curved section structure with an opening, and the section ends adjacent to the opening respectively form the frame hinge end and the fan hinge end.

10. The hidden hinge for doors and windows capable of being opened and closed at large angles in sequence as claimed in claim 9, wherein:

the hinged arm (5) is composed of a frame end folding arm (6) close to the frame hinged end, a fan end folding arm (7) close to the fan hinged end, and a connecting arm (8) for connecting one end of the frame end folding arm (6) far away from the frame hinged end and one end of the fan end folding arm (7) far away from the fan hinged end.

11. The blind hinge for doors and windows capable of being opened and closed at large angles in sequence as claimed in claim 10, wherein:

the connecting arm (8) is by with frame connection piece that frame end is rolled over arm (6) and with the fan connection piece that fan end is rolled over arm (7) and is connected constitutes frame connection piece reaches the shaping has corresponding connecting hole on the fan connection piece, at least be in frame connection piece or connecting hole on one of the fan connection piece is for adjusting slot hole (23), and the connecting screw that passes the connecting hole will frame connection piece reaches fan connection piece is connected adjustably.

12. The door and window blind hinge capable of being opened and closed at large angles in sequence according to claim 1, is characterized in that:

also comprises

The frame hinge box (1) is fixedly arranged in a door and window frame to form the frame inner space, and the frame hinge shaft (3) is fixedly arranged in the frame hinge box (1); the auxiliary resistance function of the door and window frame is applied during the work so as to keep the positioning function of the frame clamping pair (9);

the sash hinge box (2) is fixedly arranged in a door and window sash to form the sash inner space, and the sash hinge shaft (4) is fixedly arranged in the sash hinge box (2); the auxiliary resistance function of the door and window sash is applied during the work so as to keep the positioning function of the sash clamping pair (10).

13. The utility model provides a door and window, includes door and window fan and door and window frame, its characterized in that:

the door and window sash and the door and window frame are hinged and connected through the door and window blind hinge capable of opening and closing at large angles in sequence as claimed in any one of claims 1 to 12.