CN216197336U - Novel blind hinge for anti-theft door - Google Patents
Novel blind hinge for anti-theft door Download PDFInfo
- Publication number
- CN216197336U CN216197336U CN202122079052.0U CN202122079052U CN216197336U CN 216197336 U CN216197336 U CN 216197336U CN 202122079052 U CN202122079052 U CN 202122079052U CN 216197336 U CN216197336 U CN 216197336U
- Authority
- CN
- China
- Prior art keywords
- hinge
- door
- hole
- rotating shaft
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
A novel hidden hinge for an anti-theft door comprises a door frame, a door body and a hinge body which are connected, wherein the upper end and the lower end of the door frame are respectively provided with an upper hinge seat and a lower hinge seat, and a hinge rotating shaft connected with the upper hinge seat and the lower hinge seat is arranged between the upper hinge seat and the lower hinge seat; the hinge body is sleeved on the hinge rotating shaft and fixedly connected with the hinge rotating shaft, and the hinge rotating shaft is rotatably connected with the upper hinge seat and the lower hinge seat; compared with the prior art, through with hinge body and the fixed setting of pivot, and fix a position the pivot through last hinge seat and lower hinge seat, plane pressure bearing supports the hinge body, make door body switch rotate the in-process, better flexibility ratio has, laborsaving during the switch door, the length of the hinge body of this scheme is unanimous with the length of the door body simultaneously, better pick-proof nature has and pleasing to the eye, spacing limit can effectively prevent when the door body is opened, opening angle is too big to bump cavity or frame, avoid causing the loss, possess better security performance and durability.
Description
Technical Field
The utility model relates to the technical field of security doors, in particular to a novel blind hinge for a security door.
Background
For the purpose of safety, a hidden hinge that is not accessible from the outside is generally used to prevent a lawless person from breaking a door hinge to illegally enter a room. A typical blind hinge includes a door frame mounting plate adapted to be mounted to a door frame, a door leaf mounting plate adapted to be mounted to a door leaf, and a substantially U-shaped hinge arm disposed between the door frame mounting plate and the door leaf mounting plate, one end of the hinge arm being fixedly connected to the door leaf mounting plate and being hinged to the door frame mounting plate by a hinge shaft. Because the door frame mounting plate is mounted in the door frame through the through hole formed in the side edge of the door frame, the hinge shaft is also hidden in the door frame, and the hinge arm is also completely retracted into the door frame through the through hole after the door is closed, so that a lawbreaker cannot contact any part of the hidden hinge. Therefore, the blind hinge has high safety performance. However, such blind hinges also have a significant drawback in that, since the hinges are disposed in the door frame, and in order to maintain the integrity of the appearance of the door frame, the hinges cannot limit the opening angle, the door body is likely to collide with the wall or the door frame, and the load-bearing capacity is poor.
Chinese patent No. CN205840580U discloses a large-opening concealed hinge assembly and a safety door having the same, wherein the large-opening concealed hinge assembly includes a hinge and a rotation sorting mechanism; the hinge is provided with a door leaf hinge seat and a hinge arm; the rotary sequencing mechanism is used for limiting the rotation sequence of the door leaf rotating shaft and the door frame rotating shaft, and is provided with a guide body fixedly arranged relative to the door frame and a rotation limiting frame fixedly arranged relative to the door leaf, and the rotation limiting frame is provided with a guide mechanism matched with the guide body.
The above-mentioned this kind of blind hinge that discloses is connected with the door leaf through door leaf hinge seat, and the blind hinge is located the door leaf upper and lower part, in the in-service use, when the weight of door leaf is great, the door leaf hinge seat produces the deformation after using a period easily, thereby influence the cooperation between door leaf and the door frame, the blind hinge sets up in the tip of door leaf simultaneously, the theftproof performance is relatively poor, there is certain potential safety hazard, above-mentioned this kind of hinge disclosed, a door body needs two at least, can't avoid producing the decentraction problem, cause the switch door dumb.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides the concealed hinge for the anti-theft door, which has good anti-theft performance, stable structure, safety and reliability.
In order to achieve the purpose, the utility model adopts the following technical scheme: a novel hidden hinge for an anti-theft door comprises a door frame, a door body and a hinge body which are connected, wherein the upper end and the lower end of the door frame are respectively provided with an upper hinge seat and a lower hinge seat, and a hinge rotating shaft connected with the upper hinge seat and the lower hinge seat is arranged between the upper hinge seat and the lower hinge seat; the hinge body is sleeved on the hinge rotating shaft and fixedly connected with the hinge rotating shaft, and the hinge rotating shaft is rotatably connected with the upper hinge seat and the lower hinge seat.
As a preferable scheme of the present invention, the hinge body includes a bending portion and a connecting portion connected to each other, the bending portion and the connecting portion form a U-shaped structure, a connecting hole adapted to a hinge rotation shaft is formed on an end surface of the bending portion, and the connecting hole is disposed along a length direction of the hinge body.
As a preferable mode of the present invention, a fastening screw hole communicating with the connection hole is formed on the bending portion, the fastening screw hole is disposed along a radial direction of the connection hole, and a fitting hole connecting with the fastening screw hole is formed on the hinge rotation shaft.
In a preferred embodiment of the present invention, the connecting portion has a fitting hole communicating with the door and a connecting surface connecting with the door.
As a preferred scheme of the present invention, a first through hole and a second through hole matched with the hinge rotating shaft are respectively formed on the upper hinge seat and the lower hinge seat, and shaft sleeves are respectively disposed in the first through hole and the second through hole, two ends of the hinge rotating shaft are respectively located in the shaft sleeves of the first through hole and the second through hole, and the hinge rotating shaft is in clearance fit with the shaft sleeves, and the shaft sleeves are in interference fit with the upper hinge seat and the lower hinge seat.
As a preferred scheme of the utility model, the upper end and the lower end of the hinge rotating shaft are sleeved with the plane pressure bearings, the upper side and the lower side of the plane pressure bearing sleeved at the upper end of the hinge rotating shaft are respectively abutted against the upper hinge seat and the hinge body, and the upper side and the lower side of the plane pressure bearing sleeved at the lower end of the hinge rotating shaft are respectively abutted against the lower hinge seat and the hinge body.
As a preferred scheme of the present invention, the door frame has a cavity structure with an opening formed at one side, the upper hinge base and the lower hinge base are both located in the cavity structure of the door frame, and the upper hinge base and the lower hinge base are fixedly connected to the door frame by bolts or welding.
As a preferable scheme of the present invention, the first through hole and the second through hole of the upper hinge base and the lower hinge base are provided with dust plugs for plugging.
As a preferable aspect of the present invention, a sectional size of the cavity structure of the door frame is identical to that of the upper hinge base and the lower hinge base.
In a preferred embodiment of the present invention, the door frame is formed with a stopper edge that fits the curved portion.
Compared with the prior art, the utility model has the beneficial effects that: through with hinge body and the fixed setting of pivot, and fix a position the pivot through last hinge seat and lower hinge seat, the plane pressure bearing supports the hinge body, make the door body switch rotate the in-process, better flexibility ratio has, laborsaving during the switch door, the length of the hinge body of this scheme is unanimous with the length of the door body simultaneously, better pick-proof nature has and pleasing to the eye, spacing limit can effectively prevent when the door body is opened, opening angle is too big bumps cavity or frame, avoid causing the loss, possess better security performance and durability.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the connection of the hinge body to the hinge shaft;
fig. 6 is a sectional view showing an opened state of the door body;
FIG. 7 is a schematic structural view of the lower hinge base;
FIG. 8 is a schematic structural view of the upper hinge base;
reference numerals: the door comprises a door frame 1, a limiting edge 1-1, a door body 2, a hinge body 3, a connecting part 3-1, a bending part 3-2, a fastening threaded hole 3-3, a connecting surface 3-4, an assembling hole 3-5, a connecting hole 3-6, a lower hinge base 4, a second through hole 4-1, an upper hinge base 5, a first through hole 5-1, a hinge rotating shaft 6, a dustproof plug 7, a shaft sleeve 8 and a plane pressure bearing 9.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1-5, a novel hidden hinge for an anti-theft door comprises a door frame 1, a door body 2 and a hinge body 3 which are connected, wherein an upper hinge seat 5 and a lower hinge seat 4 are respectively arranged at the upper end and the lower end of the door frame 1, and a hinge rotating shaft 6 which is connected is arranged between the upper hinge seat 5 and the lower hinge seat 4; the hinge body 3 is sleeved on the hinge rotating shaft 6, the hinge body 3 is fixedly connected with the hinge rotating shaft 6, and the hinge rotating shaft 6 is rotatably connected with the upper hinge seat 5 and the lower hinge seat 4; the length of the hinge body 3 is arranged along the length direction of the door body 2.
The two ends of the hinge body 3 are respectively connected with the door frame 1 and the door body 2, and the hinge body 3 is synchronously driven to rotate through the rotation of the hinge rotating shaft 6, so that the relative rotation between the door frame 1 and the door body 2 is realized, and the hinge body 3 is an aluminum alloy section bar with a strip-shaped structure.
The hinge body 3 comprises a bending part 3-2 and a connecting part 3-1 which are connected, the bending part 3-2 and the connecting part 3-1 form a U-shaped structure, a connecting hole 3-6 matched with a hinge rotating shaft 6 is formed in the end part of the bending part 3-2, the connecting hole 3-6 is arranged along the length direction of the hinge body 3, and the connecting hole 3-6 is of a through hole structure.
The connecting part 3-1 is of a hollow structure, the structure of the connecting part 3-1 is set according to the structure of the door body 2, different door bodies 2 are suitable for different connecting parts 3-1, the connecting part 3-1 of the hollow structure reduces at least cost and weight of the hinge body 3 while not influencing the use of the connecting part 3-1, the hinge body 3 is convenient to rotate, the bending part 3-2 is connected with the hinge rotating shaft 6, the hinge rotating shaft 6 is positioned in the connecting hole 3-6, and the inner diameter of the connecting hole 3-6 is consistent with the diameter of the hinge rotating shaft 6.
The bending portion 3-2 is provided with a fastening threaded hole 3-3 communicated with the connecting hole 3-6, the fastening threaded hole 3-3 is arranged along the radial direction of the connecting hole 3-6, the hinge rotating shaft 6 is provided with a matching hole connected with the fastening threaded hole 3-3, a screw is arranged in the fastening threaded hole 3-3 and is connected with the matching hole in the hinge rotating shaft 6, so that the bending portion 3-2 is fixedly connected with the hinge rotating shaft 6 under the action of the screw, the hinge rotating shaft 6 is synchronously driven to rotate in the rotating process of the hinge body 3, and the hinge body 3 is enabled to have better stability in rotation.
The connecting portion 3-1 is provided with an assembling hole 3-5 communicated with the door body 2 and a connecting surface 3-4 connected with the door body 2, the surface of the connecting surface 3-4 is contacted with the door body 2, the assembling hole 3-5 is connected with the hollow part of the connecting portion 3-1 according to the structure of the door body 2, a screw connected with the door body 2 is arranged in the assembling hole 3-5, the fixed connection between the door body 2 and the hinge body 3 is realized under the action of the screw, and meanwhile, the side surface of the door body 2 is provided with an installation groove corresponding to the hinge body 3, so that the assembling precision and the lateral clearance of the door body are ensured to be adjustable.
The upper hinge seat 5 and the lower hinge seat 4 are provided with a first through hole 5-1 and a second through hole 4-1 which are matched with the hinge rotating shaft 6, the first through hole 5-1 is positioned on the upper hinge seat 5, the second through hole 4-1 is positioned on the lower hinge seat 4, shaft sleeves 8 are respectively arranged in the first through hole 5-1 and the second through hole 4-1, two ends of the hinge rotating shaft 6 are respectively positioned in the shaft sleeves 8 of the first through hole 5-1 and the second through hole 4-1, the hinge rotating shaft 6 is in clearance fit with the shaft sleeves 8, the hinge rotating shaft 6 rotates in the shaft sleeves 8, the hinge rotating shaft 6 does not interfere with the inner wall of the shaft sleeve 8 in the rotating process, and the shaft sleeves 8 are in interference fit with the through holes of the upper hinge seat 5 and the lower hinge seat 4.
The upper and lower ends of the hinge rotating shaft 6 are sleeved with the plane pressure bearings 9, the upper and lower surfaces of the plane pressure bearing 9 sleeved at the upper end of the hinge rotating shaft 6 are respectively abutted against the upper hinge seat 5 and the hinge body 3, and the upper and lower surfaces of the plane pressure bearing 9 sleeved at the lower end of the hinge rotating shaft 6 are respectively abutted against the lower hinge seat 4 and the hinge body 3, so that the axial movement of the hinge body 3 is prevented. The length of the hinge rotating shaft 6 is reduced by the thickness of two dustproof plugs 7 along the length direction of the door frame 1.
Because hinge pivot 6 and hinge body 3 are fixed connection under the effect of screw, plane pressure bearing 9 is located hinge body 3's upper and lower both ends face, and through plane pressure bearing 9's setting, hinge body 3 all receives plane pressure bearing 9's support at rotation in-process upper and lower both ends for hinge body 3's rotation is more level and smooth nimble.
Be equipped with in first through-hole 5-1 and the second through-hole 4-1 of going up hinge seat 5 and lower hinge seat 4 and be used for the dustproof stopper 7 of shutoff, dustproof stopper 7 is the rubber material, and dustproof stopper 7 and first through-hole 5-1 and second through-hole 4-1 interference fit, thereby prevent that external dust or moisture from getting into in the axle sleeve 8, make and have better rotatability between axle sleeve 8 and the hinge pivot 6, and can set up lubricating oil between axle sleeve 8 and hinge pivot 6, dustproof stopper 7 is used for preventing lubricating oil outflow, it is interference fit with axle sleeve 8 to go up hinge seat 5 and lower hinge seat 4. The length of the sleeve 8 is: the thickness of the dust plug 7 is subtracted from the axial thickness of the upper hinge seat and the lower hinge seat.
The door frame 1 is a cavity structure with an opening formed at one side, the upper hinge seat 5 and the lower hinge seat 4 are both positioned in the cavity structure of the door frame 1, the upper hinge seat 5 and the lower hinge seat 4 are fixedly connected with the door frame 1 through bolts or welding, the cross-sectional dimension of the cavity structure is consistent with that of the upper hinge seat 5 and the lower hinge seat 4, screws between the door frame 1 and the upper hinge seat 5 and the lower hinge seat 4 are arranged along the radial direction of the hinge rotating shaft 6, so that the screws do not interfere with the hinge rotating shaft 6 or the shaft sleeve 8, the top of the upper hinge seat 5 is flush with the top of the door frame 1, and the bottom of the lower hinge seat 4 is flush with the bottom of the door frame 1, under the action of the upper hinge seat 5 and the lower hinge seat 4, the top and the bottom of the door frame 1 have better sealing performance, and the upper hinge seat 5 and the lower hinge seat 4 have better stability in the door frame 1, and the strength of the door frame 1 is also increased, the door frame 1 is an aluminum alloy section.
The door frame 1 is provided with a limit edge 1-1 matched with the bending part 3-2, and after the hinge body 3 rotates to a certain position, the limit edge 1-1 is abutted against the inside of the bending part 3-2, so that the position of the door body 2 is limited, and the collision between the door body 2 and the door frame 1 or a wall body is prevented.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the reference numerals in the figures are used more here: the door comprises a door frame 1, a limiting edge 1-1, a door body 2, a hinge body 3, a connecting part 3-1, a bending part 3-2, a fastening threaded hole 3-3, a connecting surface 3-4, an assembling hole 3-5, a connecting hole 3-6, a lower hinge base 4, a second through hole 4-1, an upper hinge base 5, a first through hole 5-1, a hinge rotating shaft 6, a dustproof plug 7, a shaft sleeve 8, a plane pressure bearing 9 and other terms, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. A novel hidden hinge for an anti-theft door comprises a door frame (1), a door body (2) and a hinge body (3) which are connected, and is characterized in that an upper hinge seat (5) and a lower hinge seat (4) are respectively arranged at the upper end and the lower end of the door frame (1), and a hinge rotating shaft (6) which is connected is arranged between the upper hinge seat (5) and the lower hinge seat (4); the hinge body (3) is sleeved on the hinge rotating shaft (6), the hinge body (3) is fixedly connected with the hinge rotating shaft (6), and the hinge rotating shaft (6) is rotatably connected with the upper hinge seat (5) and the lower hinge seat (4).
2. The novel blind hinge for the anti-theft door is characterized in that the hinge body (3) comprises a bending part (3-2) and a connecting part (3-1) which are connected, the bending part (3-2) and the connecting part (3-1) form a U-shaped structure, a connecting hole (3-6) matched with the hinge rotating shaft (6) is formed in the end face of the bending part (3-2), and the connecting hole (3-6) is arranged along the length direction of the hinge body (3).
3. The novel blind hinge for the security door as claimed in claim 2, wherein the bending portion (3-2) is formed with a fastening screw hole (3-3) communicating with the connecting hole (3-6), the fastening screw hole (3-3) is disposed along a radial direction of the connecting hole (3-6), and the hinge rotating shaft (6) is formed with a mating hole communicating with the fastening screw hole (3-3).
4. The novel blind hinge for the anti-theft door is characterized in that the connecting part (3-1) is provided with an assembling hole (3-5) communicated with the door body (2) and a connecting surface (3-4) connected with the door body.
5. The novel blind hinge for the anti-theft door is characterized in that a first through hole (5-1) and a second through hole (4-1) matched with the hinge rotating shaft (6) are formed in the upper hinge seat (5) and the lower hinge seat (4) respectively, shaft sleeves (8) are arranged in the first through hole (5-1) and the second through hole (4-1), two ends of the hinge rotating shaft (6) are located in the shaft sleeves (8) of the first through hole (5-1) and the second through hole (4-1) respectively, the hinge rotating shaft (6) is in clearance fit with the shaft sleeves (8), and the shaft sleeves (8) are in interference fit with the upper hinge seat (5) and the lower hinge seat (4).
6. The novel blind hinge for the anti-theft door as claimed in claim 5, wherein the upper and lower ends of the hinge shaft (6) are sleeved with plane pressure bearings (9), the upper and lower sides of the plane pressure bearing (9) sleeved on the upper end of the hinge shaft (6) respectively abut against the upper hinge base (5) and the hinge body (3), and the upper and lower sides of the plane pressure bearing (9) sleeved on the lower end of the hinge shaft (6) respectively abut against the lower hinge base (4) and the hinge body (3).
7. The novel blind hinge for the anti-theft door is characterized in that the door frame (1) is a cavity structure with an opening formed at one side, the upper hinge seat (5) and the lower hinge seat (4) are both positioned in the cavity structure of the door frame (1), and the upper hinge seat (5) and the lower hinge seat (4) are fixedly connected with the door frame (1) through bolts or welding.
8. The novel blind hinge for the anti-theft door is characterized in that the first through hole (5-1) and the second through hole (4-1) of the upper hinge base (5) and the lower hinge base (4) are internally provided with dust plugs (7) for plugging.
9. The new blind hinge for anti-theft door according to claim 7 is characterized in that the sectional dimension of the cavity structure of the door frame (1) is consistent with the sectional dimension of the upper hinge base (5) and the lower hinge base (4).
10. The novel blind hinge for the anti-theft door is characterized in that the door frame (1) is provided with a limiting edge (1-1) matched with the bending part (3-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122079052.0U CN216197336U (en) | 2021-08-31 | 2021-08-31 | Novel blind hinge for anti-theft door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122079052.0U CN216197336U (en) | 2021-08-31 | 2021-08-31 | Novel blind hinge for anti-theft door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216197336U true CN216197336U (en) | 2022-04-05 |
Family
ID=80918558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122079052.0U Active CN216197336U (en) | 2021-08-31 | 2021-08-31 | Novel blind hinge for anti-theft door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216197336U (en) |
-
2021
- 2021-08-31 CN CN202122079052.0U patent/CN216197336U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20050010708A (en) | A lifting apparatus for a two-leaf folding flap or folding door | |
| CN112922484B (en) | Door hinge closing pressure adjusting device and door hinge comprising same | |
| CN113585900B (en) | Concealed hinge capable of being opened and closed sequentially at large angle | |
| CN216197336U (en) | Novel blind hinge for anti-theft door | |
| CN106869653B (en) | A kind of lifting chain structure | |
| CN112459644A (en) | Vehicle door limiting hinge | |
| CA2370978A1 (en) | Vehicle door hinge | |
| CN206617004U (en) | A kind of heavy mute hinge | |
| CN107059357B (en) | Rotary hinge mechanism for drum washing machine door | |
| CN212535404U (en) | Door hinge assembly and vehicle that has it | |
| CN212201712U (en) | Elastic force adjusting pulley block | |
| CN210289473U (en) | Door body with exposed torsion shaft | |
| CN114233132A (en) | Hinge assembly | |
| CN211874207U (en) | Connecting mechanism for door frame and door body | |
| CN108086829A (en) | A kind of bearing type oil-free hinge | |
| CN219711271U (en) | Load-bearing hinge convenient to install | |
| KR20020044359A (en) | Hinge structure for back door | |
| CN214365567U (en) | Vehicle door limiting hinge | |
| CN110984744A (en) | Novel hidden hinge | |
| CN210768293U (en) | Hinge device with prolonged folding life | |
| CN217176207U (en) | Easy-open door body hinge with positioning function | |
| CN218953085U (en) | Inner hinge for T-shaped door | |
| CN219229722U (en) | Toilet lid hinge with locking mechanism | |
| CN212958142U (en) | Rear vehicle door hinge | |
| CN216921760U (en) | Silent reset type hinge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |