CN113175284B - Inclined pull rod assembly anti-shaking structure and hidden type inward casement window hinge - Google Patents

Inclined pull rod assembly anti-shaking structure and hidden type inward casement window hinge Download PDF

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Publication number
CN113175284B
CN113175284B CN202110440096.3A CN202110440096A CN113175284B CN 113175284 B CN113175284 B CN 113175284B CN 202110440096 A CN202110440096 A CN 202110440096A CN 113175284 B CN113175284 B CN 113175284B
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Prior art keywords
pull rod
long
mounting seat
fan mounting
draw bar
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CN202110440096.3A
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CN113175284A (en
Inventor
周建兵
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Chongqing Haode Hardware Group Co ltd
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Chongqing Haode Hardware Group Co ltd
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/148—Windows
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)

Abstract

The invention relates to an anti-shake structure of a diagonal draw bar assembly and a hidden inward casement window hinge, which comprises a fan mounting seat for fixedly connecting a notch and an extension block for sliding fit with the notch, wherein the extension block is connected with one end of a transmission rod, the other end of the transmission rod penetrates through a through groove at the lower end of the fan mounting seat, a short draw bar and a long draw bar are arranged above the fan mounting seat, one end of the long draw bar, which is far away from the extension block, is hinged with a strip hole on the fan mounting seat, a second rotating end of the short draw bar is hinged with the long draw bar, an open groove extends along the length direction of the long draw bar, a locking pin is in sliding fit with the open groove, a rotatable first eccentric rivet is supported on the fan mounting seat, and the eccentric rivet is positioned between the first rotating end and the open groove; the bottom of the long pull rod is provided with an anti-shake block, and the limiting side surface of the anti-shake block, which is opposite to the unlocking rotation direction of the long pull rod, is abutted against the eccentric circumferential surface of the first eccentric rivet.

Description

Inclined pull rod assembly anti-shaking structure and hidden type inward casement window hinge
Technical Field
The invention relates to a window hinge, in particular to an anti-shaking structure of a diagonal draw bar assembly and a hidden inward-opening window hinge.
Background
The hidden inward-opening lower suspension system window hinge of European standard aluminum alloy in the prior door and window hardware industry generally comprises a hinge seat and a diagonal draw bar assembly, wherein the hinge seat is arranged in a notch of a window frame section bar, the diagonal draw bar assembly is arranged in the notch of a window sash section bar, a small gap is reserved at the sliding fit position of each part and the notch for facilitating the installation of each part, and meanwhile, a certain gap exists between the diagonal draw bar assembly and the side wall of a C-shaped notch of the window sash due to unavoidable dimension processing errors and assembly errors after the installation. Meanwhile, in the existing hidden inward opening and inward tilting system, one corner of an upper diagonal draw bar of a window sash is locked after being opened horizontally, and a slotting phenomenon can occur when external force is pushed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the anti-shaking structure of the diagonal draw bar assembly and the hidden inward casement window hinge, which have simple structure and convenient installation, can eliminate shaking clearance after the window sash is installed, increase the hand feeling of the window sash when being opened, and ensure that the window sash is stable and free from shaking in the opened state; the safety and stability of the window sashes are improved.
The purpose of the invention is realized in the following way: the utility model provides a swing structure and hidden inward casement window hinge are prevented to diagonal draw bar assembly, includes the fan mount pad that is used for fixed connection notch and is used for sliding fit notch extend the piece, extend piece connection transfer line one end, the transfer line other end runs through fan mount pad lower extreme and leads to the groove, fan mount pad top is equipped with short pull rod, long pull rod, the one end that extends the piece is kept away from to long pull rod is articulated with the strip hole on the fan mount pad, the first rotating end and the fan mount pad upper end hinge of short pull rod, the second rotating end and the long pull rod of short pull rod are articulated, extend the piece upper end and set up the locking pin, the bottom of long pull rod sets up the open slot of side direction orientation fan mount pad, the open slot extends along long pull rod length direction, locking pin and open slot sliding fit, support rotatable first eccentric rivet on the fan mount pad, first eccentric rivet is located between first rotating end and the open slot, long pull rod bottom sets up prevents shaking the piece, the second rotating end of short pull rod is articulated with long pull rod, the eccentric rivet that the eccentric side was supported to the side of rotation of long pull rod is supported to the side of rotating.
The bottom of the long pull rod is detachably connected with the locking block, and the bottom of the locking block is provided with an open slot.
One end of the fan mounting seat far away from the extension block is connected with a fixed adjusting seat, a transverse adjusting screw is arranged on the adjusting seat in a penetrating way and is in threaded connection with the fan mounting seat,
the outer side of the adjusting seat is provided with a hanging connector, and the hanging connector is hung at the other end of the transmission rod.
The anti-shake block is L-shaped, the long arm section of L-shaped extends in the width direction of the long pull rod, the short arm section of L-shaped extends downwards away from the lower end face of the long pull rod, and the back of the long arm section is fixedly connected with the long pull rod.
The back of the long arm section is provided with a positioning column which is embedded with the mounting hole on the long pull rod, the back of the long arm section is provided with two lugs which extend upwards, and the two lugs are respectively embedded in the notches at the two sides of the long pull rod.
The fan mounting seat, the adjusting seat and the two sides of the lower part of the extending block are provided with sliding parts copying the inner edge parts of the notch, the sliding parts can be slidably assembled into the notch, meanwhile, the extending block can realize movement guiding through the sliding parts, and the adjusting seat and the fan mounting seat are provided with connecting screws for clamping the window sashes.
The utility model provides a hidden interior flat-open window hinge, includes frame mount pad, long piece, short piece and foretell a diagonal draw bar assembly prevents shaking structure, and the one end of long piece is articulated with the frame mount pad, and the other end and the long draw bar sliding fit of long piece, the one end and the frame mount pad sliding connection of short piece, the other end and the one end of long draw bar of short piece are articulated, and the middle part of long piece of short piece are articulated.
And the frame mounting seat supports a second eccentric rivet, and one end of the long support piece is hinged with the eccentric circumferential surface of the second eccentric rivet.
The frame mount comprises a frame mounting horizontal plate and a frame mounting vertical plate which are integrally arranged and mutually perpendicular, fasteners connected with the notch are matched on the frame mounting horizontal plate and the frame mounting vertical plate, a bolt seat is arranged on the frame mounting vertical plate, and a recess for the bolt to be inserted is formed in the bolt seat.
By adopting the scheme, the fan mounting seat is fixed on the mounting notch, the extending block is in sliding fit in the notch, the extending block can be moved by pulling or pushing of the transmission rod, when the locking pin slides out of the opening groove, after the locking is released, the swinging of the long pull rod and the swinging of the short pull rod can be realized, the inward tilting function of the diagonal pull rod assembly when the hinge is in an inward tilting state is realized, when the long pull rod is required to be locked, the long pull rod rotates in the opposite unlocking rotation direction, the long pull rod and the notch tend to be parallel, the locking pin slides into the opening groove to realize the locking, when the diagonal pull rod assembly shakes, the first eccentric rivet is regulated, and the fan mounting seat and the notch are fixedly connected in the whole process, so that the fan mounting seat and the window sash with the notch are in an integral rigid structure, different circumferential positions on the eccentric circumferential surface are contacted with the anti-shake block, and along with the increase of the eccentric distance of the contact position, the long pull rod has the swinging trend around the hinging position and swings slightly, when the long pull rod is required to be in a certain position, the locking pin can be contacted with one inner side wall of the opening groove, the inner side wall is in opposite direction, the side wall is enabled to move to be close to the swing, and the opposite side face is enabled to extend closely to the opposite side face to the swing side face, and can not extend closely to the swing side face, and can be kept close to the swing closely to the swing side; of course, along with the increase of the eccentricity of the contact position, the long pull rod also has the trend of translating along the width direction of the notch, translates slightly at any time, the gaps of the extending block, the window frame and the hinges at one side deviating from the moving direction are gradually reduced, and when translating to the limit position, the gap elimination is realized, and the shaking is eliminated. By adopting the invention, the first eccentric rivet is adjusted after the assembly is completed, and gaps formed by assembly errors, gaps formed by processing errors, reserved assembly gaps and the like can be eliminated; the safety and stability of the window sashes are improved. Meanwhile, the anti-prying and bolt locking device is additionally arranged, so that the anti-prying and anti-theft functions are realized, and the sealing performance of the window sashes is improved.
By adopting the invention, the structure is simple, the installation is convenient, the shaking gap after the window sashes are installed can be eliminated, the hand feeling of the window sashes when being opened is increased, and the window sashes are ensured to be stable and have no shaking in the opened state; the safety and stability of the window sashes are improved.
The invention will be further described with reference to the drawings and the specific examples.
Drawings
FIG. 1 is a schematic structural view of an anti-sway structure of a diagonal draw bar assembly;
FIG. 2 is a schematic view of a hidden inner side hung window hinge;
FIG. 3 is a schematic view of the hidden inner side hung window hinge with the long tie removed;
fig. 4 is a schematic view showing a use state of the hidden type inner casement window hinge.
In the drawing, 10 is a window sash, 11 is a notch, 20 is a window frame, 30 is a sliding part, 100 is a fan mounting seat, 110 is an adjusting seat, 111 is a connecting screw, 112 is a transverse adjusting screw, 120 is a hanging joint, 130 is a short pull rod, 131 is a first rotating end, 132 is a second rotating end, 140 is a long pull rod, 141 is a locking block, 142 is an open slot, 150 is a strip hole, 160 is a first eccentric rivet, 170 is an anti-shake block, 171 is a long arm section, 172 is a short arm section, 200 is an extending block, 210 is a locking pin, 250 is a bolt, 410 is a long support plate, 300 is a transmission rod, 400 is a frame mounting seat, 420 is a short support plate, 430 is a second eccentric rivet, 440 is a frame mounting horizontal plate, 450 is a frame mounting vertical plate, 451 is a bolt seat, 460 is a fixed rivet, 471 is a locking plate, 1711 is a positioning column, 1721 is a limiting side face, 1722 is a lug, and 4511 is a recess.
Detailed Description
Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 4, in an embodiment of an anti-sway structure of a diagonal draw bar assembly, the anti-sway structure comprises a fan mounting seat 100 for fixedly connecting a notch 11 and an extension block 200 for slidably matching the notch 11, sliding parts 30 profiled with the inner edge of the notch 11 are arranged on two sides of the lower portion of the fan mounting seat 100, an adjusting seat 110 and the extension block 200, sliding assembly of parts along the notch 11 can be realized through the sliding parts 30, meanwhile, the sliding parts 30 are matched with the notch 11, the extension block 200 can be guided to move in the later stage, and the adjusting seat 110 and the fan mounting seat 100 are provided with connecting screws 111 for clamping the window sashes 10, so that sliding of the fan mounting seat 100 along the notch 11 can be limited, and fixed connection of the fan mounting seat 100 and the window sashes 10 can be realized. The fan mounting seat 100 can be connected with a fixed adjusting seat 110 at one end far away from the extension block 200, a transverse adjusting screw 112 is penetrated on the adjusting seat 110, the transverse adjusting screw 112 is in threaded connection with the fan mounting seat 100, the adjustment of smaller activity is realized by adjusting the transverse adjusting screw 112,
the extension block 200 is connected with one end of the transmission rod 300, the other end of the transmission rod 300 penetrates through a through groove at the lower end of the fan mounting seat 100, further, a hanging connector 120 is arranged on the outer side of the adjusting seat 110, the hanging connector 120 is hung at the other end of the transmission rod 300, and other hardware can be conveniently connected by arranging the hanging connector 120. A short pull rod 130 and a long pull rod 140 are arranged above the fan mounting seat 100, one end of the long pull rod 140, which is far away from the extension block 200, is hinged with a strip hole 150 on the fan mounting seat 100, a first rotating end 131 of the short pull rod 130 is hinged with the upper end of the fan mounting seat 100, a second rotating end 132 of the short pull rod 130 is hinged with the long pull rod 140, a locking pin 210 is arranged at the upper end of the extension block 200, an opening groove 142 which is laterally opened towards the fan mounting seat 100 is arranged at the bottom of the long pull rod 140, the opening groove 142 extends along the length direction of the long pull rod 140, and the locking pin 210 is in sliding fit with the opening groove 142; in the invention, the bottom of the long pull rod 140 is detachably connected with the locking block 141, the bottom of the locking block 141 is provided with the open slot 142, and the long pull rod 140 and the locking block 141 can be manufactured separately, so that the structure can be simplified. The fan mount 100 supports thereon a rotatable first eccentric rivet 160, the first eccentric rivet 160 being located between the first rotating end 131 and the open slot; the bottom of the long pull rod 140 is provided with an anti-shake block 170, and a limiting side 1721 of the anti-shake block 170 facing away from the unlocking rotation direction of the long pull rod 140 abuts against the eccentric circumferential surface of the first eccentric rivet 160. The anti-shake block 170 may be L-shaped, the long arm section 171 of the L-shape extends in the width direction of the long pull rod 140, the short arm section 172 of the L-shape extends downward away from the lower end surface of the long pull rod 140, the side surface of the short arm section 172 of the L-shape facing the locking pin 210 is a limiting side surface 1721, and the back of the long arm section 171 is fixedly connected with the long pull rod 140; further, a positioning post 1711 is disposed at the back of the long arm section 171 and is engaged with the mounting hole of the long pull rod, two lugs 1722 extending upward are disposed at the back of the long arm section 171, and the two lugs 1722 are engaged with the notches at two sides of the long pull rod 140, respectively, so as to fix and stop the anti-shake block 170.
The utility model provides a hidden inwardly-casement window hinge, see fig. 1 through 4, including frame mount pad 400, long piece 410, short piece 420 and one kind of diagonal draw bar assembly anti-shake structure that just described, frame mount pad 400 is used for connecting the window frame, long piece 410's one end is articulated with frame mount pad 400, long piece 410's the other end and long draw bar 140 sliding fit, short piece 420's one end and frame mount pad 400 sliding connection, short piece 420's the other end is articulated with long draw bar 140's one end, short piece 420's middle part is articulated with long piece 410's middle part. The frame mounting base 400 may support a second eccentric rivet 430, one end of the long support piece 410 is hinged to the eccentric circumferential surface of the second eccentric rivet 430, and by adjusting the second eccentric rivet 430, the connection position between the frame mounting base 400 and the long support piece 410 may be slightly adjusted, so as to adjust the overall hinge structure and increase the sealing performance of the window sash 10. In this embodiment, the frame mount 400 includes a frame mounting horizontal plate 440 and a frame mounting vertical plate 450 that are integrally disposed and perpendicular to each other, fasteners connected to the slot 11 are mated on the frame mounting horizontal plate 440 and the frame mounting vertical plate 450, the fasteners may include fixing rivets 460, the front ends of the fixing rivets 460 are fixed with locking pieces 471, the long axis length of each locking piece 471 is greater than the width of the slot 11, the short axis length of each locking piece 471 is less than the width of the slot 11, during assembly, the locking pieces 471 penetrating into the slot 11 are rotated to fix the fasteners to the slot 11, a latch seat 451 is disposed on the frame mounting vertical plate 450, a recess 4511 into which the latch 250 is inserted is disposed on the latch seat 451, and locking of the hinge side of the window frame 20 and the window sash 10 is achieved through mating of the latch 250 and the recess 4511, so that the overall anti-prying and anti-theft functions are enhanced.
When the window sash is connected by adopting the scheme, the frame installation horizontal plate 440 and the frame installation vertical plate 450 which are mutually vertical on the frame installation seat 400 are respectively connected in the notch 11 of the window frame 20 through the fixing rivet 460, the transmission rod 300 is installed in the notch 11 of the window sash 10, the extension block 200 and the window sash installation seat 100 are assembled in the notch 11 of the window sash 10 through the sliding part 30, the window sash installation seat 100 is fixed through the connecting screw 111, the movement of the extension block 200 can be realized through the pulling or pushing of the transmission rod 300, after the locking pin 210 slides out of the open slot 142, the rotation of the long pull rod 140 around the unlocking rotation direction can be realized after the locking is released, the swinging of the long pull rod 140 and the swinging of the short pull rod 130 can be realized, the inward tilting function of the diagonal pull rod assembly is realized when the long pull rod 140 is required to be locked against the unlocking rotation direction, after the long pull rod 140 and the notch 11 tend to be parallel, the locking pin 210 slides into the open slot 142, the locking is realized, when the diagonal pull rod assembly is rocked, the eccentricity 160 is adjusted, the eccentric distance is along with the contact position of the eccentric rivet 160, the extension block 200 and the window frame 20 is gradually increased, and the gap is gradually reduced when the gap is gradually and the gap is gradually reduced, and the gap is gradually and the gap is reduced. By adopting the invention, after the assembly is completed, the gap formed by assembly errors, the gap formed by processing errors, the gap reserved for assembly and the like can be eliminated by the first eccentric rivet 160; the safety and stability of the window sash 10 are improved. Meanwhile, the anti-prying and latch 250 locking device is added, so that the anti-prying and anti-theft functions are achieved, and the sealing performance of the window sash 10 is improved.
Although embodiments of the present invention have been disclosed in the foregoing description and illustrated in the drawings, it is not intended to be limited to the details and embodiments shown and described, but rather to be fully applicable to various fields of adaptation to the present invention, and further modifications may be readily made by those skilled in the art without departing from the general concept defined by the claims and the equivalents thereof, and it is therefore apparent that the invention is not limited to the specific details and illustrations shown and described herein, and that various changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a diagonal draw bar assembly prevents shaking structure which characterized in that: the rivet comprises a fan mounting seat (100) for fixing a connecting notch (11) and an extension block (200) for sliding the connecting notch (11), wherein the extension block (200) is connected with one end of a transmission rod (300), the other end of the transmission rod (300) penetrates through a through groove at the lower end of the fan mounting seat (100), a short pull rod (130) and a long pull rod (140) are arranged above the fan mounting seat (100), one end of the long pull rod (140) far away from the extension block (200) is hinged with a strip hole (150) in the fan mounting seat (100), a first rotating end (131) of the short pull rod (130) is hinged with the upper end of the fan mounting seat (100), a second rotating end (132) of the short pull rod (130) is hinged with the long pull rod (140), a locking pin (210) is arranged at the upper end of the extension block (200), a lateral opening is arranged at the bottom of the long pull rod (140) and faces an opening groove (142) of the fan mounting seat (100), the opening groove (142) extends along the length direction of the long pull rod (140), the locking pin (210) is hinged with the upper end of the fan mounting seat (100), and the first rotating end (142) is in sliding fit with the first rotating groove (142) and the first rotating groove is arranged on the eccentric rivet; the bottom of the long pull rod (140) is provided with an anti-shaking block (170), and a limiting side face (1721) of the anti-shaking block (170) back to the unlocking rotation direction of the long pull rod (140) abuts against the eccentric circumferential face of the first eccentric rivet (160).
2. The diagonal draw bar assembly anti-sway structure of claim 1, wherein: the bottom of the long pull rod (140) is detachably connected with the locking block (141), and an open slot (142) is formed in the bottom of the locking block (141).
3. The diagonal draw bar assembly anti-sway structure of claim 1, wherein: one end of the fan mounting seat (100) far away from the extension block (200) is connected with a fixed adjusting seat (110), a transverse adjusting screw (112) is arranged on the adjusting seat (110) in a penetrating mode, and the transverse adjusting screw (112) is in threaded connection with the fan mounting seat (100).
4. A diagonal draw bar assembly anti-sway structure according to claim 3, characterized in that: the outer side of the adjusting seat (110) is provided with a hanging connector (120), and the hanging connector (120) is hung at the other end of the transmission rod (300).
5. The diagonal draw bar assembly anti-sway structure of claim 1, wherein: the anti-shaking block (170) is L-shaped, a long arm section (171) of the L-shape extends in the width direction of the long pull rod (140), a short arm section (172) of the L-shape extends downwards away from the lower end face of the long pull rod (140), and the back of the long arm section (171) is fixedly connected with the long pull rod (140).
6. The diagonal draw bar assembly anti-sway structure of claim 5, wherein: the back of the long arm section (171) is provided with a positioning column (1711) which is embedded with the mounting hole on the long pull rod, the back of the long arm section (171) is provided with two lugs (1722) which extend upwards, and the two lugs (1722) are respectively embedded in notches at two sides of the long pull rod (140).
7. The diagonal draw bar assembly anti-sway structure of claim 1, wherein: the sliding parts (30) copying with the inner edges of the notches (11) are arranged on two sides of the lower parts of the fan mounting seat (100), the adjusting seat (110) and the extension block (200), and connecting screws (111) used for clamping the window sashes (10) are arranged on the adjusting seat (110) and the fan mounting seat (100).
8. A hidden inward casement window hinge, characterized in that: including frame mount pad (400), long piece (410), short piece (420) and any one of claims 1-7 a diagonal brace assembly prevents shaking structure, the one end of long piece (410) is articulated with frame mount pad (400), the other end and the long pull rod (140) sliding fit of long piece (410), the one end and the frame mount pad (400) sliding connection of short piece (420), the other end and the one end of long pull rod (140) of short piece (420) are articulated, the middle part and the middle part of long piece (410) of short piece (420) are articulated.
9. The hidden inward casement window hinge of claim 8, wherein: the frame mounting seat (400) supports a second eccentric rivet (430), and one end of the long support piece (410) is hinged with the eccentric circumferential surface of the second eccentric rivet (430).
10. The hidden inward casement window hinge of claim 8, wherein: the frame installation seat (400) comprises a frame installation horizontal plate (440) and a frame installation vertical plate (450) which are perpendicular to each other, fasteners connected with the notch (11) are matched on the frame installation horizontal plate (440) and the frame installation vertical plate (450), a bolt seat (451) is arranged on the frame installation vertical plate (450), and a recess (4511) for inserting a bolt (250) is formed in the bolt seat (451).
CN202110440096.3A 2021-04-23 2021-04-23 Inclined pull rod assembly anti-shaking structure and hidden type inward casement window hinge Active CN113175284B (en)

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CN113175284B true CN113175284B (en) 2023-07-14

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