CN109577773A - A kind of axis hinge page that dispersion stress can translate - Google Patents
A kind of axis hinge page that dispersion stress can translate Download PDFInfo
- Publication number
- CN109577773A CN109577773A CN201910013310.XA CN201910013310A CN109577773A CN 109577773 A CN109577773 A CN 109577773A CN 201910013310 A CN201910013310 A CN 201910013310A CN 109577773 A CN109577773 A CN 109577773A
- Authority
- CN
- China
- Prior art keywords
- loading arm
- bearing
- hinge page
- door leaf
- retainer
- 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.)
- Pending
Links
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D11/00—Additional features or accessories of hinges
- E05D11/04—Additional features or accessories of hinges relating to the use of free balls as bearing-surfaces
-
- 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
- E05D5/02—Parts for attachment, e.g. flaps
-
- 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
- E05D5/10—Pins, sockets or sleeves; Removable pins
-
- 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
- E05D5/10—Pins, sockets or sleeves; Removable pins
- E05D5/12—Securing pins in sockets, movably or not
Abstract
The present invention provides a kind of axis hinge page that dispersion stress can translate, including upper hinge page composition, lower hinge page composition, loading arm composition and elongated axis, the elongated axis is vertically arranged, and the upper and lower ends of usual long axis are rotatable respectively to be fixed on upper hinge page composition and lower hinge page composition, the loading arm composition is set on elongated axis and adjacent lower hinge page composition top setting, and the loading arm composition includes loading arm, retainer and load-bearing backing plate.Axis hinge page provided by the invention is formed using new structural loading arm, loading arm composition is mainly used for undertaking the weight of door leaf, ball is respectively set in the lower section of loading arm and the side of retainer, the downward gravitational load of door leaf can be decomposed and be carried two end faces, not only increase the intensity of loading arm composition, due to the effect of two-way double-row balls, the frictional force that each component generates under door leaf gravity is also substantially reduced, closes door leaf more convenient laborsaving when opening.
Description
Technical field
The present invention relates to defense equipment fields, in particular to closed guard gate field, and in particular to a kind of dispersion stress can translate
Axis hinge page.
Background technique
According to related rules and regulations, when Metro Construction, must take into account the needs of people's air defence, should play city in wartime
The operation of city's lifeline, plays that personnel are hidden and the work of wartime material dispersal when city is hit by nuclear weapon and conventional weapon
With.According to protection needs, subway civil air defence needs personnel's entrance, single into exhaust outlet, smoke outlet, the protection of underground section AT STATION
Before member, enter and leave section line setting closed guard gate.Wherein, personnel's entrance and air duct protective door can select common people's air defense as needed
Door.And section, discrepancy section line closed guard gate are arranged on main line track, operating condition is special and complicated, the standard that can not select directly
Closed guard gate belongs to non-standard equipment, need to carry out special designing.
Airtight blast door requires to stop shock wave and stop toxic agent, so airtight blast door should meet load
It is required that meeting tight requirements again, closed adhesive tape is provided between door leaf and doorframe.Therefore a kind of hinge page is needed both to be able to satisfy
The bearing requirements of subway protection sealed door, and can guarantee door leaf in closing process, it first stands and is translated after turning, squeeze door leaf doorframe uniformly
Densification seal strip.The common hinge page structural bearing door leaf gravitational load Impact direction of closed guard gate is single at present, and connects with door leaf
The fixing axle and movable axis connect all uses the lesser circular hole in gap, just causes opened between each component in door leaf closing in this way
Frictional force in journey increases, and the space that door leaf can be adjusted voluntarily during the motion does not have substantially, opens so causing to close
It is time-consuming and laborious when door leaf, it is very inconvenient.
Therefore, how a kind of axis hinge page that dispersion stress can translate is provided, the friction between door leaf and each component is reduced
Power and property easy to use have become the technical issues of this field skill personnel's urgent need to resolve.
Summary of the invention
This practical goal of the invention is to provide a kind of axis hinge page that dispersion stress can translate, to solve door in the prior art
Frictional force is big when fan rotation uses inconvenient technical problem.
The present invention provides a kind of axis hinge page that dispersion stress can translate, comprising: lower hinge seat, vertical shaft and upper hinge seat；
Support, the support are set on the lower hinge seat；
Lower free bearing and upper free bearing are respectively arranged at the lower hinge seat at the top of the bottom of the lower free bearing and upper free bearing
The inside of the internal and described upper hinge seat；
The top of the lower free bearing is fixed in support bracket, the bottom of the support bracket；
Upper flap, the upper flap are set on the upper hinge seat；
Lower flap, the lower flap are set on the lower hinge seat；
Loading arm, the loading arm are set to the surface of the vertical shaft；
Load backing plate, the load backing plate are set to the bottom on the right side of the loading arm；
Retainer, the lower section that the retainer is set to the loading arm are located at the surface of the vertical shaft；
Two door leaf free bearings, the left side of two door leaf free bearings pass through pin shaft and rotate in the upper flap respectively
The surface on surface and the lower flap；
First bolt, first bolt are set to the surface of the upper hinge seat；
Two slotted pan head screws, two slotted pan head screws are used to bearing cover being fixed on door leaf free bearing.
Further, it is rotatablely connected between the side opposite with upper free bearing of the top of the vertical shaft by self-aligning roller bearing,
It is rotatablely connected between the side opposite with lower free bearing of the bottom of the vertical shaft by tapered roller bearing.
Further, the side of the tapered roller bearing is separately provided for dustproof cover and backing plate, the dustproof cover master
Play the role of sealing.
Further, bearing cover is provided at the top of the self-aligning roller bearing.
Specifically, the bottom of the pin shaft is provided with split pin, is provided with lubricating cup on the pin shaft.
Specifically, the first pin shaft hole is provided on the upper flap, the first pin shaft hole is the first long hole, and the first long hole is inclined
It is arranged to far from door leaf direction, is provided with the second pin shaft hole on the lower flap, the second long hole that the second pin shaft hole is, second
Long hole is biased to be arranged close to door leaf direction.
Specifically, the lower end surface of the loading arm is equipped with one and arranges the first ball grooves, and the surface of the vertical shaft is located at described hold
Position below weighing arm is provided with retainer, and the upper surface of the retainer is equipped with one and arranges the 2nd ball grooves, assembles rear load-bearing arm
First ball grooves of lower end surface are aligned with the second ball grooves of retainer upper surface.
More specifically, the right end face of the retainer, which is equipped with one, arranges the 3rd ball grooves, the left end face of load-bearing backing plate is set
The 4th ball grooves are arranged, the 4th ball of the third ball grooves of retainer right end face and load-bearing backing plate left end face after assembly
Slot aligns, and the inside of each ball grooves is provided with steel ball.
Compared with prior art, the beneficial effects of the present invention are: a kind of dispersion stress provided by the invention can translate
Axis hinge page, comprising: lower hinge seat, vertical shaft and upper hinge seat；
Support, the support are set on the lower hinge seat；
Lower free bearing and upper free bearing are respectively arranged at the lower hinge seat at the top of the bottom of the lower free bearing and upper free bearing
The inside of the internal and described upper hinge seat；
The top of the lower free bearing is fixed in support bracket, the bottom of the support bracket；
Upper flap, the upper flap are set on the upper hinge seat；
Lower flap, the lower flap are set on the lower hinge seat；
Loading arm, the loading arm are set to the surface of the vertical shaft；
Load backing plate, the load backing plate are set to the bottom on the right side of the loading arm；
Retainer, the lower section that the retainer is set to the loading arm are located at the surface of the vertical shaft；
Two door leaf free bearings, the left side of two door leaf free bearings pass through pin shaft and rotate in the upper flap respectively
The surface on surface and the lower flap；
First bolt, first bolt are set to the surface of the upper hinge seat；
Two slotted pan head screws, two slotted pan head screws are used to bearing cover being fixed on door leaf free bearing.
First, the present invention offers first by being provided between the bottom of the loading arm and the top of retainer respectively
Ball grooves and the second ball grooves, and third ball grooves are offered between the left side of loading arm side and the right side of retainer respectively
With the 4th ball grooves, by being provided with double ball grooves so that door it is downward gravity decomposition carried on both faces, subtract
Small friction, so that the opening and closing of door are more convenient and light.
Second, being provided with the first pin shaft hole on upper flap of the invention, the first pin shaft hole is the first long hole, the first long hole
It is biased to be arranged far from door leaf direction, the second pin shaft hole is provided on lower flap, the second long hole that the second pin shaft hole is, second is long
Hole is biased to be arranged close to door leaf direction, and axis hole of having strong market potential can make fixing axle and rotary pin shaft keeping parallelism as far as possible, rotate door
It is more smoothly laborsaving in translation motion.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is whole structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the whole side view in Fig. 1 provided in an embodiment of the present invention；
Fig. 3 is the enlarged drawing in Fig. 1 provided in an embodiment of the present invention at A；
Fig. 4 is the whole bottom view in Fig. 1 provided in an embodiment of the present invention；
Fig. 5 is the whole top view in Fig. 1 provided in an embodiment of the present invention；
Fig. 6 is the top view of the upper flap in Fig. 1 provided in an embodiment of the present invention；
Fig. 7 is the top view of the lower flap in Fig. 1 provided in an embodiment of the present invention.
Appended drawing reference:
Hinge seat under 1-；2- support；Free bearing under 3-；4- support bracket；5- dustproof cover；6- backing plate；7- upper flap；Under 8-
Flap；9- load backing plate；10- retainer；11- loading arm；12- vertical shaft；13- pin shaft；14- door leaf free bearing；The upper free bearing of 15-；
16- bearing cover；The upper hinge seat of 17-；The first bolt of 18-；19- slotted pan head screw；20- self-aligning roller bearing；21- opening
Pin；The second bolt of 22-；23- steel ball；24- lubricating cup；25- tapered roller bearing；The first pin shaft hole of 26-；The second pin shaft hole of 27-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.
The component for the embodiment of the present invention for usually describing and showing in attached drawing here can be with a variety of different configurations
To arrange and design.Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is whole structural schematic diagram provided in an embodiment of the present invention；Fig. 2 is in Fig. 1 provided in an embodiment of the present invention
Whole side view；Fig. 3 is the enlarged drawing in Fig. 1 provided in an embodiment of the present invention at A；Fig. 4 provides for the embodiment of the present invention
Fig. 1 in whole bottom view；Fig. 5 is the whole top view in Fig. 1 provided in an embodiment of the present invention；Fig. 6 is the present invention
The top view for the upper flap in Fig. 1 that embodiment provides；
Fig. 5 is the top view of the lower flap in Fig. 1 provided in an embodiment of the present invention.
Below with reference to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, can be translated the present invention provides a kind of dispersion stress
Axis hinge page, including.
It further illustrates, compared with the existing technology, a kind of axis hinge page that dispersion stress can translate provided by the invention, packet
It includes:
Lower hinge seat 1, vertical shaft 12 and upper hinge seat 17；
Support 2, support 2 are set on lower hinge seat 1；
Lower free bearing 3 and upper free bearing 15, the bottom of lower free bearing 3 and the top of upper free bearing 15 are respectively arranged at lower hinge seat 1
The inside of internal and upper hinge seat 17；
The top of lower free bearing 3 is fixed in support bracket 4, the bottom of support bracket 4；
Upper flap 7, upper flap 7 are set on hinge seat 17；
Lower flap 8, lower flap 8 are set on lower hinge seat 1；
Loading arm 11, loading arm 11 are set to the surface of vertical shaft 12；
Load backing plate 9, load backing plate 9 are set to the bottom on the right side of loading arm 11；
Retainer 10, the lower section that retainer 10 is set to loading arm 11 are located at the surface of vertical shaft 12；
Two door leaf free bearings 14, the left side of two door leaf free bearings 14 pass through pin shaft 13 and rotate in upper flap 7 respectively
The surface on surface and lower flap 8；
First bolt 18, the first bolt 18 are set to the surface of hinge seat 17；
Two slotted pan head screws 19, two slotted pan head screws 19 are used to for bearing cover 16 to be fixed on door leaf hinge
Seat 14.
Further, the present invention is offered respectively by being provided between the bottom of loading arm 11 and the top of retainer 10
First ball grooves and the second ball grooves, and is offered between the left side of 11 side of loading arm and the right side of retainer 10 respectively
Three ball grooves and the 4th ball grooves, by being provided with double ball grooves so that the downward gravity of door decompose on both faces into
Row carrying, reduces friction, so that the opening and closing of door are more convenient and light.
Further, the first pin shaft hole 26 is provided on upper flap 7 of the invention, the first pin shaft hole 26 is first long
Hole, the first long hole are biased to be arranged far from door leaf direction, are provided with the second pin shaft hole 27 on lower flap 8, the second pin shaft hole 27 is
The second long hole, the second long hole is biased to be arranged close to door leaf direction, and axis hole of having strong market potential can make fixing axle and rotary pin shaft 13 as far as possible
Keeping parallelism keeps door more smoothly laborsaving during rotational translation.
Specifically, connected between the top of vertical shaft 12 and the opposite side of upper free bearing 15 by the rotation of self-aligning roller bearing 20
It connects, is rotatablely connected between the bottom of vertical shaft 12 and the opposite side of lower free bearing 3 by tapered roller bearing 25.
Further, the side of tapered roller bearing 25 is separately provided for dustproof cover 5 and backing plate 6, and dustproof cover 5 is main
Play the role of sealing.
Further, the top of self-aligning roller bearing 20 is provided with bearing cover 16.
Further, the bottom of pin shaft 13 is provided with split pin 21, and lubricating cup 24 is provided on the pin shaft.
Specifically, the first pin shaft hole is provided on upper flap 7, the first pin shaft hole is the first long hole, and the first long hole is biased to
It is arranged far from door leaf direction, is provided with the second pin shaft hole, the second long hole that the second pin shaft hole is, the second long hole on lower flap 8
It is biased to be arranged close to door leaf direction.
Further, the lower end surface of loading arm 11 is equipped with one and arranges the first ball grooves, and the surface of vertical shaft 12 is located at loading arm 11
The position of lower section is provided with retainer 10, and the upper surface of retainer 10 is equipped with one and arranges the 2nd ball grooves, assembles under rear load-bearing arm 11
First ball grooves of end face and the second ball grooves of 10 upper surface of retainer align.
Specifically, the right end face of retainer 10 is equipped with one and arranges the 3rd ball grooves, and the left end face of load-bearing backing plate 9 is equipped with one
It ranked fourth ball grooves, the 4th ball of the third ball grooves of 10 right end face of retainer and 9 left end face of load-bearing backing plate after assembly
Slot aligns, and the inside of each ball grooves is provided with steel ball 23.
In use, people is when closing door leaf or opened door leaf by driving the upper hinge in the hinge page being fixed on door leaf 20
The effect of plate 7, lower flap 8 and hinge mount is provided with double ball grooves so that vertical shaft 12 rotates movement, so that door
Downward gravity decomposition is carried on both faces, reduces friction, so that the opening and closing of door are more convenient and light, together
When 13 keeping parallelism of vertical shaft 12 and rotary pin shaft can be made due to axis hole of having strong market potential as far as possible, keep door more suitable during rotational translation
It is smooth laborsaving.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of axis hinge page that dispersion stress can translate characterized by comprising
Lower hinge seat, vertical shaft and upper hinge seat；
Support, the support are set on the lower hinge seat；
Lower free bearing and upper free bearing are respectively arranged at the inside of the lower hinge seat at the top of the bottom of the lower free bearing and upper free bearing
With the inside of the upper hinge seat；
The top of the lower free bearing is fixed in support bracket, the bottom of the support bracket；
Upper flap, the upper flap are set on the upper hinge seat；
Lower flap, the lower flap are set on the lower hinge seat；
Loading arm, the loading arm are set to the surface of the vertical shaft；
Load backing plate, the load backing plate are set to the bottom on the right side of the loading arm；
Retainer, the lower section that the retainer is set to the loading arm are located at the surface of the vertical shaft；
Two door leaf free bearings, the left side of two door leaf free bearings pass through the surface that pin shaft rotates in the upper flap respectively
With the surface of the lower flap；
First bolt, first bolt are set to the surface of the upper hinge seat；
Two slotted pan head screws, two slotted pan head screws are used to bearing cover being fixed on door leaf free bearing.
2. a kind of axis hinge page that dispersion stress can translate according to claim 1, which is characterized in that the top of the vertical shaft
It is rotatablely connected between the portion side opposite with upper free bearing by self-aligning roller bearing, the bottom of the vertical shaft is opposite with lower free bearing
It is rotatablely connected between side by tapered roller bearing.
3. a kind of axis hinge page that dispersion stress can translate according to claim 2, which is characterized in that the taper roller
The side of bearing is separately provided for dustproof cover and backing plate, and the dustproof cover primarily serves the effect of sealing.
4. a kind of axis hinge page that dispersion stress can translate according to claim 2, which is characterized in that the aligning roller
Bearing cover is provided at the top of bearing.
5. a kind of axis hinge page that dispersion stress can translate according to claim 1, which is characterized in that the bottom of the pin shaft
Portion is provided with split pin, is provided with lubricating cup on the pin shaft.
6. a kind of axis hinge page that dispersion stress can translate according to claim 1, which is characterized in that the upper flap
On be provided with the first pin shaft hole, the first pin shaft hole is the first long hole, and the first long hole is biased to be arranged far from door leaf direction, the lower hinge
The second pin shaft hole, the second long hole that the second pin shaft hole is are provided on carrier bar, the second long hole is biased to be arranged close to door leaf direction.
7. a kind of axis hinge page that dispersion stress can translate according to claim 1, which is characterized in that the loading arm
Lower end surface is equipped with one and arranges the first ball grooves, and the position that the surface of the vertical shaft is located at below the loading arm is provided with retainer,
The upper surface of the retainer is equipped with one and arranges the 2nd ball grooves, assembles on the first ball grooves and retainer of rear load-bearing arm lower end surface
Second ball grooves of end face align.
8. a kind of axis hinge page that dispersion stress can translate according to claim 7, which is characterized in that the retainer
Right end face is equipped with one and arranges the 3rd ball grooves, and the left end face of load-bearing backing plate is equipped with one and arranges the 4th ball grooves, retainer after assembly
The third ball grooves of right end face and the 4th ball grooves of load-bearing backing plate left end face align, and the inside of each ball grooves is equal
It is provided with steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910013310.XA CN109577773A (en) | 2019-01-07 | 2019-01-07 | A kind of axis hinge page that dispersion stress can translate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910013310.XA CN109577773A (en) | 2019-01-07 | 2019-01-07 | A kind of axis hinge page that dispersion stress can translate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109577773A true CN109577773A (en) | 2019-04-05 |
Family
ID=65916198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910013310.XA Pending CN109577773A (en) | 2019-01-07 | 2019-01-07 | A kind of axis hinge page that dispersion stress can translate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109577773A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207296698U (en) * | 2017-10-10 | 2018-05-01 | 重庆北碚国通锻造有限公司 | A kind of durable type automotive door hinge |
| CN207332555U (en) * | 2017-06-09 | 2018-05-08 | 中国人民解放军61517部队 | Safeguard two bearings weight hinge page |
| CN207332559U (en) * | 2017-06-09 | 2018-05-08 | 中国人民解放军61517部队 | Safeguard slotted hole hinge page |
| CN108222726A (en) * | 2018-03-16 | 2018-06-29 | 天仁民防建筑工程设计有限公司 | The rotation hinge page of multiterminal load |
| CN209723975U (en) * | 2019-01-07 | 2019-12-03 | 北京市轨道交通设计研究院有限公司 | A kind of axis hinge page that dispersion stress can translate |
-
2019
- 2019-01-07 CN CN201910013310.XA patent/CN109577773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207332555U (en) * | 2017-06-09 | 2018-05-08 | 中国人民解放军61517部队 | Safeguard two bearings weight hinge page |
| CN207332559U (en) * | 2017-06-09 | 2018-05-08 | 中国人民解放军61517部队 | Safeguard slotted hole hinge page |
| CN207296698U (en) * | 2017-10-10 | 2018-05-01 | 重庆北碚国通锻造有限公司 | A kind of durable type automotive door hinge |
| CN108222726A (en) * | 2018-03-16 | 2018-06-29 | 天仁民防建筑工程设计有限公司 | The rotation hinge page of multiterminal load |
| CN209723975U (en) * | 2019-01-07 | 2019-12-03 | 北京市轨道交通设计研究院有限公司 | A kind of axis hinge page that dispersion stress can translate |
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