CN114278174B - Elastic bolt type diagonal bracing door stopper and installation and use method thereof - Google Patents
Elastic bolt type diagonal bracing door stopper and installation and use method thereof Download PDFInfo
- Publication number
- CN114278174B CN114278174B CN202111454928.3A CN202111454928A CN114278174B CN 114278174 B CN114278174 B CN 114278174B CN 202111454928 A CN202111454928 A CN 202111454928A CN 114278174 B CN114278174 B CN 114278174B
- Authority
- CN
- China
- Prior art keywords
- bolt
- rod
- door
- sleeve
- door body
- 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
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention provides an elastic bolt type diagonal bracing door stopper and an installation and use method thereof.A door body connecting structure for fixedly connecting a door body to be blocked is arranged at the back of a bolt seat; the front surface of the bolt seat is fixed with a rectangular sleeve and a round sleeve, the inside of the round sleeve is in sliding fit with a bolt sleeve, and the outer side wall of the bolt sleeve is fixed with a handle; the handle is matched with a limiting block fixed on the outer side wall of the latch seat; the bolt sleeve and the rectangular sleeve are internally provided with a bolt rod in sliding fit, and the tail end of the bottom of the bolt rod is hinged with an inclined strut structure; the bolt rod is sleeved with a spring below the bolt sleeve, and the top of the bolt rod is provided with a spacing adjusting mechanism. When the door is not required to be blocked, the handle of the bolt is arranged above the limiting block of the bolt seat, at the moment, the supporting block is not contacted with the ground, and the door body can be freely opened and closed.
Description
Technical Field
The invention relates to the field of door blocking devices, in particular to an elastic bolt type diagonal bracing door blocking device and an installation and use method thereof.
Background
There are some situations in production and life where it is desirable to prevent the door from opening or closing, such as fire doors fitted with door closers, which in some cases are required to remain open for a period of time, which requires measures to prevent the door from automatically closing. In addition to simple methods of blocking with weights or plugging in wooden wedges at the bottom gap of the door, door stoppers are often used to prevent the door from opening and closing. The existing door stopper has various forms, mainly adopts structures such as inclined struts, suckers and wedges, is generally installed between a door body and the ground when in use, and needs to be detached when the normal opening and closing functions of the door are to be restored, so that the door stopper is more troublesome to use under the condition of frequent door stopper requirements.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an elastic bolt type diagonal bracing door stopper and an installation and use method thereof, wherein the door stopper can be installed at the lower part of a door body by a bolt seat, when a door is not required to be blocked, a handle of a bolt is arranged above a limit block of the bolt seat, at the moment, a supporting block is not contacted with the ground, and the door body can be freely opened and closed; when the door is required to be blocked, the handle is arranged below the limiting block of the bolt seat, and at the moment, the spring of the bolt is compressed, and the supporting block is tightly pressed with the ground through the inclined supporting structure formed by the connecting rod, so that the door blocking function is exerted.
In order to achieve the technical characteristics, the aim of the invention is realized in the following way: an elastic bolt type diagonal bracing door stopper comprises a bolt seat, wherein the back of the bolt seat is provided with a door body connecting structure for fixedly connecting with a door body to be blocked; the front surface of the bolt seat is fixed with a rectangular sleeve and a round sleeve, the inside of the round sleeve is in sliding fit with a bolt sleeve, and the outer side wall of the bolt sleeve is fixed with a handle; the handle is matched with a limiting block fixed on the outer side wall of the latch seat; the bolt sleeve and the rectangular sleeve are internally provided with a bolt rod in sliding fit, and the tail end of the bottom of the bolt rod is hinged with an inclined strut structure; the bolt rod is sleeved with a spring below the bolt sleeve, and the top of the bolt rod is provided with a spacing adjusting mechanism.
The door body connecting structure adopts a bolt connecting structure, the bolt connecting structure comprises a plurality of groups of symmetrically arranged bolt through holes arranged on the bolt seat, and the bolt through holes are fixedly connected with the door body through bolts penetrating through the installation.
The door body connecting structure adopts a magnetic connection structure, the magnetic connection structure comprises a permanent magnet fixed at the back of the latch seat, and the permanent magnet is connected with a door body capable of generating magnetic attraction through magnetic attraction.
The door body connection structure adopts sucking disc formula connection structure, sucking disc formula connection structure is including fixing the sucking disc at the bolt seat back, the sucking disc passes through vacuum adsorption with smooth door body and links to each other.
The diagonal bracing structure comprises a connecting rod hinged at the tail end of the bottom of the bolt rod through a first pin shaft, and a supporting block used for being in contact fit with the ground is hinged at the other end of the connecting rod through a second pin shaft.
The top end of the supporting block is fixedly provided with an ear seat, and the ear seat is hinged with the bottom end of the connecting rod through a second pin shaft; and a rubber pad is fixed at the bottom end of the supporting block.
The bolt rod adopts a multi-section structure design and comprises a polished rod section and a platy rod, a screw rod is processed at the top end of the polished rod section, a positioning shaft shoulder is arranged at the tail end of the polished rod section, the lower end of the spring is in contact fit with the positioning shaft shoulder, and the polished rod section and the bolt sleeve form sliding fit; the plate-shaped rod is arranged at the lower end of the positioning shaft shoulder, adopts a rectangular section and forms sliding fit with the rectangular sleeve.
The bottom end of the platy rod is provided with an arc-shaped end head which is matched with the top end of the connecting rod, and the connecting rod is ensured to always keep a certain inclination angle.
The interval adjusting mechanism comprises an upper gasket sleeved at the top end of the bolt rod, a nut is sleeved on the upper end of the upper gasket and positioned on a screw rod of the bolt rod, and a lower gasket is arranged at the top of the spring and positioned at the bottom end of the bolt sleeve.
A mounting and using method of an elastic bolt type sucker door stopper,
the concrete installation time is as follows:
the door stopper is arranged at a proper height at the lower part of the door body, so that when the handle is arranged above the limiting block, the supporting block is not contacted with the ground, and when the handle is arranged below the limiting block, the supporting block is contacted with the ground, the spring is properly compressed, the initial length of the elastic bolt structure is adjusted through the two nuts, and the ground clearance of the supporting block is adjusted when the handle is arranged above the limiting block;
the specific use process is as follows:
when the door is not required to be blocked, the handle is arranged on the limiting block, the latch rod is in a natural extension state, and the latch rod lifts the supporting block through the connecting rod, so that the door can be normally opened and closed;
when the door is required to be blocked, the handle is rotated to separate from the limitation of the upper surface of the limiting block, then the handle is moved downwards to enable the supporting block to be in contact with the ground, the elastic bolt structure is compressed, and finally the handle is rotated to enable the handle to be limited below the lower surface of the limiting block, at the moment, external force is applied to one side of the door stopper on the door body, the external force is converted into downward force on the supporting block through the inclined connecting rod, so that the friction force between the rubber pad and the ground is increased, and the door body is prevented from moving to one side of the door stopper.
The invention has the following beneficial effects:
1. the door stopper is similar to a common bolt in use, is convenient and quick to operate, has the common advantage of the inclined-strut type door stopper in door stopping effect, namely the friction force with the ground is increased along with the increase of external force acting on the door body, and the door stopper is directly arranged on the door body without detaching the door stopper when no door is required. The adjustable elastic bolt structure adopted simultaneously can not only increase the downward pressure of the diagonal bracing structure on the ground, but also conveniently adjust the ground clearance when the supporting block is lifted.
2. The bolt type inclined support door stopper is connected with a connecting rod serving as an inclined support through a hinge, the door stopper is arranged on a door body, the bolt is lifted to the upper portion of a limiting block when the door is not required to be blocked, and the bolt is arranged at the lower portion of the limiting block when the door is required to be blocked.
3. The adjustable elastic bolt structure is applied to the inclined strut door stopper, and consists of a bolt sleeve, a bolt rod, a spring, a nut and the like, and the initial length of the elastic bolt structure can be adjusted through adjusting the nut, so that the ground clearance of the supporting block when the bolt is lifted is adjusted.
4. The arc-shaped end head is adopted to enable the connecting rod to have an initial inclination angle, so that inclination direction errors can be avoided when the connecting rod automatically inclines after vertically downwards contacts with the ground.
5. When the bolt sleeve rotates due to the matching mode of the rectangular sleeve and the plate-shaped rod, the plate-shaped rod does not rotate, so that the inclination direction of the connecting rod is not changed.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a view of the entire structure of the present invention in an initial released state.
Fig. 2 is a diagram showing the whole structure of the present invention in a locked state.
Fig. 3 is a front view of the present invention.
Fig. 4 is a top view of the present invention.
Fig. 5 is a view A-A of fig. 3 in accordance with the present invention.
In the figure: 1. the bolt comprises a bolt seat, 101, a circular sleeve, 102, a limiting block, 103, a rectangular sleeve, 2, a bolt sleeve, 201, a handle, 3, a bolt rod, 301, a screw rod, 302, a plate-shaped rod, 303, an arc end, 4, a spring, 5, a connecting rod, 6, a supporting block, 601, a rubber pad, 602, a lug seat, 7, a nut, 8, a gasket, 9, an upper gasket, 10, a first pin roll, 11, a second pin roll, 12 and a bolt through hole.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, an elastic latch type diagonal bracing door stopper comprises a latch seat 1, wherein a door body connecting structure for fixedly connecting with a door body to be blocked is arranged on the back of the latch seat 1; the front surface of the bolt seat 1 is fixed with a rectangular sleeve 103 and a round sleeve 101, the inside of the round sleeve 101 is in sliding fit with a bolt sleeve 2, and the outer side wall of the bolt sleeve 2 is fixed with a handle 201; the handle 201 is matched with the limiting block 102 fixed on the outer side wall of the latch seat 1; the bolt sleeve 2 and the rectangular sleeve 103 are internally provided with a bolt rod 3 in sliding fit, and the bottom end of the bolt rod 3 is hinged with an inclined strut structure; the bolt rod 3 is sleeved with a spring 4 below the bolt sleeve 2, and the top of the bolt rod 3 is provided with a spacing adjusting mechanism. The door stopper is similar to a common bolt in use, is convenient and quick to operate, has the common advantage of the inclined-strut door stopper in a door stopping effect, namely the friction force with the ground is increased along with the increase of the external force acting on the door body, and is directly arranged on the door body without detaching the door stopper when no door is required. The adjustable elastic bolt structure adopted simultaneously can not only increase the downward pressure of the diagonal bracing structure on the ground, but also conveniently adjust the ground clearance when the supporting block is lifted.
Further, the door body connecting structure adopts a bolt connecting structure, the bolt connecting structure comprises a plurality of groups of symmetrically arranged bolt through holes 12 arranged on the bolt seat 1, and the bolt through holes 12 are fixedly connected with the door body through bolts which penetrate through the bolt seat. The door body connecting structure can be used for conveniently and reliably fixing the whole door stopper on the door body, so that the convenience of installation of the door stopper is improved.
Further, the door body connecting structure adopts a magnetic connection structure, the magnetic connection structure comprises a permanent magnet fixed at the back of the latch seat 1, and the permanent magnet is connected with a door body capable of generating magnetic attraction through magnetic attraction. The magnetic connection structure improves the convenience of connection.
Further, the door body connection structure adopts a sucking disc type connection structure, the sucking disc type connection structure comprises a sucking disc fixed at the back of the latch seat 1, and the sucking disc is connected with the smooth door body through vacuum adsorption. The convenience of connection is enhanced through the sucker type connecting structure.
Further, the diagonal bracing structure comprises a connecting rod 5 hinged at the bottom end of the bolt rod 3 through a first pin shaft 10, and a supporting block 6 used for being in contact fit with the ground is hinged at the other end of the connecting rod 5 through a second pin shaft 11. The inclined support structure can provide inclined support force to support the door body, and the connecting rod 5 can rotate within a certain range.
Further, an ear seat 602 is fixed at the top end of the supporting block 6, and the ear seat 602 is hinged with the bottom end of the connecting rod 5 through a second pin 11; a rubber pad 601 is fixed at the bottom end of the supporting block 6. The supporting blocks 6 can be used for being in contact fit with the ground, so that the diagonal bracing of the door body is realized.
Furthermore, the bolt rod 3 adopts a multi-section structure design and comprises a polished rod section 305 and a plate-shaped rod 302, a screw 301 is processed at the top end of the polished rod section 305, a positioning shaft shoulder 304 is arranged at the tail end of the polished rod section 305, the lower end of the spring 4 is in contact fit with the positioning shaft shoulder 304, and the polished rod section 305 and the bolt sleeve 2 form sliding fit; the plate-shaped rod 302 is arranged at the lower end of the positioning shaft shoulder 304, and the plate-shaped rod 302 adopts a rectangular cross section and forms a sliding fit with the rectangular sleeve 103. Through foretell multistage structural design can be used for cooperating with stopper and rectangle sleeve pipe, and then goes up and down sliding fit to bolt pole 3.
Further, the bottom end of the plate-shaped rod 302 is provided with an arc-shaped end 303 for being matched with the top end of the connecting rod 5, and the connecting rod 5 is ensured to always maintain a certain inclination angle. The arc end 303 can serve as a stop.
Further, the interval adjusting mechanism comprises an upper gasket 9 sleeved at the top end of the bolt rod 3, a nut 7 is sleeved on a screw 301 positioned at the upper end of the upper gasket 9 and positioned at the bolt rod 3, and a lower gasket 8 is positioned at the top of the spring 4 and positioned at the bottom end of the bolt sleeve 2. The height of the latch rod 3 can be adjusted through the interval adjusting mechanism, so that the latch rod 3 can be separated from the ground when in an initial state.
Preferably, the latch seat 1 used in the present invention is connected to the door body by bolts, and other connection modes such as gluing, magnetic attraction and the like can be used instead. By accurately controlling the mounting height of the door stopper, the height of the supporting block 6 does not need to be adjusted later, the elastic bolt structure of the invention can be eliminated, and in addition, the elastic bolt structure can be replaced by other rod-shaped structures which can be elastically telescopic. Rubber pad 601 attached under support block 6 may be replaced with other materials that increase friction. The cross-sectional shape of the rectangular sleeve 103 and the plate bar 302 that cooperate with each other may be replaced with other cross-sectional shapes that do not rotate relative to each other after cooperation. The structure that the inclined surface 303 is adopted to enable the connecting rod 5 to have an initial inclined angle can be realized by arranging a baffle on the lower part of the bolt rod 3 or the upper part of the connecting rod 5, arranging the inclined surface on the connecting rod 5 and the like.
Example 2:
a mounting and using method of an elastic bolt type sucker door stopper,
the concrete installation time is as follows:
the door stopper is arranged at a proper height at the lower part of the door body, so that when the handle 201 is arranged above the limiting block 102, the supporting block 6 is not contacted with the ground, and when the handle 201 is arranged below the limiting block 102, the supporting block 6 is contacted with the ground, the spring 4 is properly compressed, the initial length of the elastic bolt structure is adjusted through the two nuts 7, and the ground clearance of the supporting block 6 is adjusted when the handle 201 is arranged above the limiting block 102;
the specific use process is as follows:
when the door is not required to be blocked, the handle 201 is arranged on the limiting block 102, the latch rod 3 is in a natural extension state, the latch rod 3 lifts the supporting block 6 through the connecting rod 5, and at the moment, the door can be normally opened and closed;
when the door is required to be closed, the handle 201 is rotated to separate from the limitation of the upper surface of the limiting block 102, then the handle 201 is moved downwards to enable the supporting block 6 to be in contact with the ground, the elastic bolt structure is compressed, and finally the handle 201 is rotated to be limited below the lower surface of the limiting block 102, at the moment, an external force is applied to one side of the door body to the door stopper, the external force is converted into a downward force to the supporting block 6 through the inclined connecting rod 5, so that the friction force between the rubber pad 601 and the ground is increased, and the door body is further prevented from moving to one side of the door stopper.
Claims (7)
1. An elastic bolt type diagonal bracing door stopper is characterized in that: the door body connecting structure is used for fixedly connecting with a door body to be blocked; the front surface of the bolt seat (1) is fixedly provided with a rectangular sleeve (103) and a circular sleeve (101), the inside of the circular sleeve (101) is in sliding fit with a bolt sleeve (2), and the outer side wall of the bolt sleeve (2) is fixedly provided with a handle (201); the handle (201) is matched with a limiting block (102) fixed on the outer side wall of the latch seat (1); the bolt sleeve (2) and the rectangular sleeve (103) are internally provided with a bolt rod (3) in sliding fit, and the bottom end of the bolt rod (3) is hinged with an inclined strut structure; a spring (4) is sleeved on the bolt rod (3) and positioned below the bolt sleeve (2), and a spacing adjusting mechanism is arranged at the top of the bolt rod (3);
the bolt rod (3) adopts a multi-section structure design and comprises a polished rod section (305) and a platy rod (302), a screw rod (301) is processed at the top end of the polished rod section (305), a positioning shaft shoulder (304) is arranged at the tail end of the polished rod section (305), the lower end of the spring (4) is in contact fit with the positioning shaft shoulder (304), and the polished rod section (305) and the bolt sleeve (2) form sliding fit; the plate-shaped rod (302) is arranged at the lower end of the positioning shaft shoulder (304), and the plate-shaped rod (302) adopts a rectangular section and is in sliding fit with the rectangular sleeve (103);
the bottom end of the plate-shaped rod (302) is provided with an arc-shaped end socket (303) which is matched with the top end of the connecting rod (5), and the connecting rod (5) is ensured to always maintain a certain inclination angle;
the interval adjusting mechanism comprises an upper gasket (9) sleeved at the top end of the bolt rod (3), a nut (7) is sleeved on a screw rod (301) positioned at the upper end of the upper gasket (9) and positioned at the bolt rod (3), and a lower gasket (8) is arranged at the top of the spring (4) and positioned at the bottom end of the bolt sleeve (2).
2. An elastic latch type diagonal bracing door stop according to claim 1, wherein: the door body connecting structure adopts a bolt connecting structure, the bolt connecting structure comprises a plurality of groups of symmetrically arranged bolt through holes (12) arranged on the bolt seat (1), and the bolt through holes (12) are fixedly connected with the door body through bolts penetrating through the installation.
3. An elastic latch type diagonal bracing door stop according to claim 1, wherein: the door body connecting structure adopts a magnetic connection structure, the magnetic connection structure comprises a permanent magnet fixed at the back of the latch seat (1), and the permanent magnet is connected with a door body capable of generating magnetic attraction through magnetic attraction.
4. An elastic latch type diagonal bracing door stop according to claim 1, wherein: the door body connecting structure adopts a sucking disc type connecting structure, the sucking disc type connecting structure comprises a sucking disc fixed at the back of the bolt seat (1), and the sucking disc is connected with the smooth door body through vacuum adsorption.
5. An elastic latch type diagonal bracing door stop according to claim 1, wherein: the diagonal bracing structure comprises a connecting rod (5) hinged at the tail end of the bottom of the bolt rod (3) through a first pin shaft (10), and a supporting block (6) used for being in contact fit with the ground is hinged at the other end of the connecting rod (5) through a second pin shaft (11).
6. An elastic latch type diagonal bracing door stop according to claim 5, wherein: an ear seat (602) is fixed at the top end of the supporting block (6), and the ear seat (602) is hinged with the bottom end of the connecting rod (5) through a second pin shaft (11); the bottom end of the supporting block (6) is fixed with a rubber pad (601).
7. A method of installing and using an elastic latch type diagonal bracing door stop as claimed in any one of claims 1 to 6, wherein,
the concrete installation time is as follows:
the door stopper is arranged at a proper height at the lower part of the door body, so that when the handle (201) is arranged above the limiting block (102), the supporting block (6) is not contacted with the ground, when the handle (201) is arranged below the limiting block (102), the supporting block (6) is contacted with the ground, the spring (4) is properly compressed, the initial length of the elastic bolt structure is adjusted through the two nuts (7), and when the handle (201) is arranged above the limiting block (102), the ground clearance of the supporting block (6) is further changed;
the specific use process is as follows:
when the door is not required to be blocked, the handle (201) is arranged on the limiting block (102), the bolt rod (3) is in a natural extension state, the bolt rod (3) lifts the supporting block (6) through the connecting rod (5), and at the moment, the door can be normally opened and closed;
when the door is required to be blocked, the handle (201) is rotated to separate from the limitation of the upper surface of the limiting block (102), then the handle (201) is moved downwards to enable the supporting block (6) to be in contact with the ground, the elastic bolt structure is compressed, and finally the handle (201) is rotated to be limited below the lower surface of the limiting block (102), at the moment, an external force is applied to one side of the door stopper on the door body, the external force is converted into a downward force on the supporting block (6) through the inclined connecting rod (5), so that the friction force between the rubber pad (601) and the ground is increased, and the door body is blocked from moving to one side of the door stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111454928.3A CN114278174B (en) | 2021-12-01 | 2021-12-01 | Elastic bolt type diagonal bracing door stopper and installation and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111454928.3A CN114278174B (en) | 2021-12-01 | 2021-12-01 | Elastic bolt type diagonal bracing door stopper and installation and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114278174A CN114278174A (en) | 2022-04-05 |
| CN114278174B true CN114278174B (en) | 2023-07-14 |
Family
ID=80870459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111454928.3A Active CN114278174B (en) | 2021-12-01 | 2021-12-01 | Elastic bolt type diagonal bracing door stopper and installation and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114278174B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094605U (en) * | 1991-05-22 | 1992-01-29 | 范楝 | All-position door stopper |
| CN2540484Y (en) * | 2002-05-13 | 2003-03-19 | 严华善 | Positioning device for door |
| KR200458315Y1 (en) * | 2010-03-25 | 2012-02-24 | 양원돈 | Door stopper |
| CN201747168U (en) * | 2010-04-15 | 2011-02-16 | 唐宇光 | Door stepless opening degree fixing apparatus |
| CN202187636U (en) * | 2011-02-25 | 2012-04-11 | 卞海兵 | Piston door stopper |
| KR101284260B1 (en) * | 2011-11-21 | 2013-07-15 | 이찬봉 | Auto door stopper |
| US9702174B2 (en) * | 2011-12-20 | 2017-07-11 | Penn Elcom Corporation | Door brace |
-
2021
- 2021-12-01 CN CN202111454928.3A patent/CN114278174B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114278174A (en) | 2022-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114278174B (en) | Elastic bolt type diagonal bracing door stopper and installation and use method thereof | |
| CN200985698Y (en) | House door locating dowel | |
| CN110118043A (en) | A kind of vertical hinged door adjustable positioner and its installation method | |
| CN201783884U (en) | Vacuum sucker | |
| CN218150420U (en) | Hanging pulley set for inner door of sliding door | |
| CN219176112U (en) | Four-bar diagonal bracing magnetic type door stopper | |
| CN114278173B (en) | Elastic bolt type sucker door stopper and installation and use method thereof | |
| CN206158413U (en) | Multi -angle door fixing device | |
| CN220336746U (en) | Suspension type silence door and window | |
| CN215717989U (en) | Spacing support device for top-hung window | |
| CN218493393U (en) | Door closer structure of fireproof door | |
| CN215369285U (en) | Adjustable floor door stopper convenient to install | |
| CN220488618U (en) | High-efficient antidetonation gallows | |
| CN212922697U (en) | Support arrangement for people's air defense door | |
| CN112681785B (en) | C-shaped guide rail falling protector | |
| CN213838146U (en) | Telescopic door stopper with good silencing effect | |
| CN220247838U (en) | Civil air defense door locking seat | |
| CN204754656U (en) | Hang device on door and window external -open | |
| CN210422239U (en) | Hang of external-open top suspension system and open and prevent tenesmus supporting component | |
| KR200266300Y1 (en) | Lower slide roller of a movable cabinet folding door | |
| CN220522313U (en) | Elastic stopper for anti-theft door | |
| CN217351662U (en) | Six square pipe leaf spring cradles of intelligence spinning frame | |
| CN221034883U (en) | Air detection device convenient to installation | |
| CN216407956U (en) | Energy-saving emission-reducing type fire-fighting pipeline mounting structure | |
| CN208564397U (en) | A kind of adjustable blocking device of door window antitheft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |