[go: up one dir, main page]

CN112709491A - Multi-thread handle device of quick-opening and quick-locking and using method thereof - Google Patents

Multi-thread handle device of quick-opening and quick-locking and using method thereof Download PDF

Info

Publication number
CN112709491A
CN112709491A CN202011561627.6A CN202011561627A CN112709491A CN 112709491 A CN112709491 A CN 112709491A CN 202011561627 A CN202011561627 A CN 202011561627A CN 112709491 A CN112709491 A CN 112709491A
Authority
CN
China
Prior art keywords
thread
handle
quick
sleeve
fastened
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
Application number
CN202011561627.6A
Other languages
Chinese (zh)
Inventor
马周康
宋军伟
雷栋
孙瑞环
董小文
王晨
陈雷雷
王艺焯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Fenghuo Industrial Co ltd
Original Assignee
Shaanxi Fenghuo Industrial Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi Fenghuo Industrial Co ltd filed Critical Shaanxi Fenghuo Industrial Co ltd
Priority to CN202011561627.6A priority Critical patent/CN112709491A/en
Publication of CN112709491A publication Critical patent/CN112709491A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
    • E05B1/003Handles pivoted about an axis perpendicular to the wing
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B13/00Devices preventing the key or the handle or both from being used
    • E05B13/005Disconnecting the handle
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B3/00Fastening knobs or handles to lock or latch parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The invention discloses a multi-thread handle device of a quick-opening and quick-locking and a use method thereof, wherein the multi-thread handle device comprises a multi-thread bolt and a sleeve; the multi-thread bolt comprises a cylinder and a screw head arranged at the upper end of the cylinder, wherein the cylinder is provided with multi-thread threads, a sleeve is sleeved on the screw head, and the side part of the sleeve is provided with a handle; the multi-thread bolt comprises a multi-thread bolt body and is characterized by further comprising a first to-be-fastened piece and a second to-be-fastened piece, wherein a first round hole is formed in the first to-be-fastened piece, the diameter of the first round hole is larger than that of the multi-thread bolt, and a screw hole matched with the multi-thread on the multi-thread bolt is formed in the second to-be-fastened. Through the multi-thread screw thread that sets up on the cylinder of multi-thread bolt, can realize the quick fastening and the loosening of handle device, easy operation is convenient moreover, practices thrift fixed mounting time.

Description

Multi-thread handle device of quick-opening and quick-locking and using method thereof
Technical Field
The invention relates to the field of handles, in particular to a multi-thread handle device of a quick-opening and quick-locking mechanism and a using method thereof.
Background
When the shock absorption frame or the fixed frame is used for fixing equipment, at least two conventional butterfly knobs are generally needed, and each butterfly knob needs to be rotated for seven and eight circles, so that time and labor are wasted. However, some special use scenes require that the installation equipment can be quickly assembled and disassembled, and the butterfly knob obviously cannot meet the requirements, so that a fixing and locking device capable of realizing quick assembly and disassembly by one wrench is urgently needed in the market.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a multi-thread handle device of a quick-opening and quick-locking and a using method thereof. Through the multi-thread screw thread that sets up on the cylinder of multi-thread bolt, can realize the quick fastening and the loosening of handle device, easy operation is convenient moreover, practices thrift fixed mounting time.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme.
A multi-thread handle device of a quick-opening and quick-locking device comprises a multi-thread bolt and a sleeve;
the multi-thread bolt comprises a cylinder and a screw head arranged at the upper end of the cylinder, wherein the cylinder is provided with multi-thread threads, a sleeve is sleeved on the screw head, and the side part of the sleeve is provided with a handle;
the multi-thread bolt comprises a multi-thread bolt body and is characterized by further comprising a first to-be-fastened piece and a second to-be-fastened piece, wherein a first round hole is formed in the first to-be-fastened piece, the diameter of the first round hole is larger than that of the multi-thread bolt, and a multi-thread screw hole matched with the multi-thread on the multi-thread bolt is formed in the second to-be.
Preferably, the screw head is circular, the side wall of the screw head is uniformly provided with vertical outer straight teeth, and the inner wall of the sleeve is provided with inner straight teeth matched with the outer straight teeth.
Preferably, the screw head is quadrilateral, and a quadrilateral inner hole matched with the quadrilateral is arranged in the sleeve.
Preferably, the top of the sleeve is provided with a baffle, and the center of the baffle is provided with a second round hole;
the top of the multi-thread bolt is provided with a screw hole matched with the fastening screw; the fastening screw is screwed into the screw hole of the multi-thread bolt from the second round hole on the baffle plate, a compression spring is sleeved on the fastening screw, and the inner diameter of the compression spring is larger than the diameter of the second round hole.
Preferably, the multiple start thread may be a four start thread.
Preferably, the multiple start thread may be a three start thread.
Preferably, the handle is inclined upward at an angle of 5 ° to the horizontal;
the number of teeth of the inner straight teeth is 10, and the number of teeth of the outer straight teeth is 30.
A use method of a multi-thread handle device of a quick-opening and quick-locking device comprises a quick-locking operation step and a quick-opening operation step;
the quick locking operation steps are as follows:
step 1, rotating a handle, and locking a first fastener to be fastened and a second fastener to be fastened by a multi-thread bolt;
step 2, pulling the handle outwards to separate the inner straight teeth of the sleeve from the outer straight teeth of the screw head, and rotating the handle to a proper position;
step 3, loosening the handle, and re-engaging the sleeve and the screw head under the action of the restoring force of the compression spring;
the quick opening operation steps are as follows:
step 1, rotating a handle, and loosening a first fastener to be fastened and a second fastener to be fastened through multi-thread threads;
step 2, pulling the handle outwards to separate the inner straight teeth of the sleeve from the outer straight teeth of the screw head, and rotating the handle to a proper position;
and 3, loosening the handle, and re-engaging the sleeve and the screw head under the action of the restoring force of the compression spring.
Compared with the prior art, the invention has the beneficial effects that:
(1) the multi-thread screw thread arranged on the cylinder of the multi-thread bolt can realize quick fastening and loosening of the handle device, and the multi-thread bolt is simple and convenient to operate and saves the fixed installation time.
(2) Vertical outer straight-teeth that the lateral wall of spiral shell head evenly set up, the interior straight-teeth that matches with outer straight-teeth that sets up on the telescopic inner wall, sleeve and multi-thread bolt pass through the tooth meshing transmission, both can guarantee to screw, can guarantee again to screw the back and outwards draw the handle for the tooth separation of sleeve and multi-thread bolt can realize that the handle separation rotates alone, can ensure that the handle is in the horizontality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the released state of the present invention;
FIG. 3 is a schematic view of a fastening structure of the present invention;
FIG. 4 is a schematic view of the outer spur structure of the present invention;
FIG. 5 is a schematic view of the inner spur structure of the present invention;
in the figure: 1. a multi-thread bolt; 101. a cylinder; 102. a screw head; 2. a sleeve; 3. a handle; 4. a first member to be fastened; 5. a second member to be fastened; 6. outer straight teeth; 7. inner straight teeth; 8. a baffle plate; 9. fastening screws; 10. compressing the spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, a multi-thread handle device of a quick-opening and quick-locking device includes a multi-thread bolt 1 and a sleeve 2;
the multi-thread bolt 1 comprises a cylinder 101 and a thread head 102 arranged at the upper end of the cylinder 101, wherein multi-thread threads are arranged on the cylinder 101, the sleeve 2 is sleeved on the thread head 102, and a handle 3 is arranged at the side part of the sleeve 2;
the multi-thread bolt comprises a multi-thread bolt 1 and is characterized by further comprising a first to-be-fastened piece 4 and a second to-be-fastened piece 5, wherein a first round hole is formed in the first to-be-fastened piece 4, the aperture of the first round hole is larger than that of the multi-thread bolt 1, and a multi-thread screw hole matched with the multi-thread on the multi-thread bolt 1 is formed in the second to-be-fastened piece 5.
The multi-thread screw thread arranged on the cylinder of the multi-thread bolt 1 can realize the quick fastening and loosening of the handle device.
Preferably, the screw head 102 is circular, vertical outer straight teeth 6 are uniformly arranged on the side wall of the screw head 102, and inner straight teeth 7 matched with the outer straight teeth 6 are arranged on the inner wall of the sleeve 2.
Vertical outer straight-tooth 6 that the lateral wall of spiral shell head 102 evenly set up, the inner straight-tooth 7 that matches with outer straight-tooth 6 that sets up on the inner wall of sleeve 2, spiral shell head 102 and 2 tooth meshing transmission designs of sleeve both guarantee to screw, can guarantee again to screw backward pull handle 3 for sleeve 2 rebound, thereby sleeve 2 and multi-thread bolt 1's tooth separation realize that handle 3 separation rotates alone, can ensure that handle 3 is in the horizontality.
Preferably, the screw head 102 is quadrilateral, and a quadrilateral inner hole matched with the quadrilateral is arranged in the sleeve 2.
Preferably, a baffle plate 8 is arranged at the top of the sleeve 2, and a second round hole is formed in the center of the baffle plate 8;
the multi-thread bolt comprises a multi-thread bolt body and is characterized by further comprising a fastening screw 9, wherein the top of the multi-thread bolt body 1 is provided with a screw hole matched with the fastening screw 9; the fastening screw 9 is screwed into a screw hole of the multi-thread bolt 1 from a second round hole in the baffle plate 8, a compression spring 10 is sleeved on the fastening screw 9, and the inner diameter of the compression spring 10 is larger than the diameter of the second round hole.
The baffle plate 8 and a second round hole in the center of the baffle plate 8 are arranged to resist the downward movement of the compression spring 10.
Preferably, the multiple start thread may be a four start thread.
Preferably, the multiple start thread may be a three start thread.
The multi-thread setting can guarantee that the feed volume is enough big, and according to the circumstances, the multi-thread can be designed into four-thread or three-thread, can also be designed into the multi-thread of other figures.
Preferably, the handle 3 is inclined upward at an angle of 5 ° to the horizontal;
the number of teeth of the inner straight teeth 7 is 10, and the number of teeth of the outer straight teeth 6 is 30.
The handle design takes human engineering into consideration, the handle 3 inclines upwards to form 5 degrees with the horizontal direction, and the force application direction is met when the handle 3 is rotated. The number of teeth of the inner straight teeth 7 is 10, the number of teeth of the outer straight teeth 6 is 30, and the number of teeth of the inner straight teeth 7 and the number of teeth of the outer straight teeth 6 are in a multiple relation of 3; according to the condition, the tooth numbers of the inner straight teeth 7 and the outer straight teeth 6 can be designed into other multiple relations, so that meshing transmission of the inner straight teeth 7 and the outer straight teeth 6 is realized.
A use method of a multi-thread handle device of a quick-opening and quick-locking device comprises a quick-locking operation step and a quick-opening operation step;
the quick locking operation steps are as follows:
step 1, rotating a handle 3, and locking a first fastener 4 to be fastened and a second fastener 5 to be fastened by a multi-thread bolt;
step 2, pulling the handle 3 outwards to separate the inner straight teeth 7 of the sleeve 2 from the outer straight teeth 6 of the screw head 102, and rotating the handle 3 to a proper position;
step 3, the handle 3 is loosened, and the sleeve 2 and the screw head 102 are re-engaged under the action of the restoring force of the compression spring 10;
the quick opening operation steps are as follows:
step 1, rotating a handle 3, and loosening a first fastener 4 to be fastened and a second fastener 5 to be fastened through multi-thread threads;
step 2, pulling the handle 3 outwards to separate the inner straight teeth 7 of the sleeve 2 from the outer straight teeth (6) of the screw head 102, and rotating the handle (3) to a proper position;
and 3, loosening the handle (3), and re-engaging the sleeve (2) and the screw head (102) under the restoring force action of the compression spring (10).
The working principle is as follows:
the locking process and the unlocking process will be described below by taking an example in which the handle can be locked by rotating 180 degrees.
When a first fastener 4 to be fastened and a second fastener 5 to be fastened are required to be fastened, the multi-thread bolt 1 is made to penetrate through a first round hole in the first fastener 4 to be fastened, at the moment, the handle 3 is still at an initial position (namely the handle 3 is 0 degree to the horizontal direction), then the handle 3 is adjusted, the multi-thread bolt is screwed into the second fastener 5 to be fastened, when the multi-thread bolt is fixedly screwed, the handle 3 is at a horizontal position of 180 degrees, if the handle 3 is at an improper position such as a hand blocking position or a sight blocking position, the handle 3 is pulled outwards, the sleeve 2 is made to move upwards, accordingly, the inner straight teeth 7 of the sleeve 2 are separated from the outer straight teeth 6 of the screw head 102, the handle.
When a first fastener 4 to be fastened and a second fastener 5 to be fastened need to be loosened, the handle 3 can be rotated to be quickly opened and unlocked, and similarly, if the handle 3 is located at an inappropriate position such as a hand blocking position or a sight blocking position, the handle 3 is pulled outwards, so that the sleeve 2 moves upwards, the inner straight teeth 7 of the sleeve 2 are separated from the outer straight teeth 6 of the screw head 102, and the handle 3 is rotated to a proper position.
Although the present invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Accordingly, such modifications and improvements are intended to be within the scope of this invention as claimed.

Claims (8)

1. The utility model provides a multi-thread handle device of quick lock that opens soon which characterized in that: comprises a multi-thread bolt (1) and a sleeve (2);
the multi-thread bolt (1) comprises a cylinder (101) and a screw head (102) arranged at the upper end of the cylinder (101), wherein multi-thread threads are arranged on the cylinder (101), the sleeve (2) is sleeved on the screw head (102), and a handle (3) is arranged at the side part of the sleeve (2);
the multi-thread bolt is characterized by further comprising a first to-be-fastened piece (4) and a second to-be-fastened piece (5), wherein a first round hole is formed in the first to-be-fastened piece (4), the aperture of the first round hole is larger than that of the multi-thread bolt (1), and a screw hole matched with the multi-thread on the multi-thread bolt (1) is formed in the second to-be-fastened piece (5).
2. The multi-start threaded handle set of a quick release and quick lock of claim 1, wherein: the screw head (102) is circular, vertical outer straight teeth (6) are uniformly arranged on the side wall of the screw head (102), and inner straight teeth (7) matched with the outer straight teeth (6) are arranged on the inner wall of the sleeve (2).
3. The multi-start threaded handle set of a quick release and quick lock of claim 1, wherein: the screw head (102) is quadrilateral, and a quadrilateral inner hole matched with the quadrilateral is arranged in the sleeve (2).
4. The multi-start threaded handle set of a quick release and quick lock of claim 1, wherein: a baffle (8) is arranged at the top of the sleeve (2), and a second round hole is formed in the center of the baffle (8);
the multi-thread bolt comprises a multi-thread bolt body (1) and is characterized by further comprising a fastening screw (9), wherein the top of the multi-thread bolt body (1) is provided with a screw hole matched with the fastening screw (9); the fastening screw (9) is screwed into a screw hole of the multi-thread bolt (1) from a second round hole in the baffle (8), a compression spring (10) is sleeved on the fastening screw (9), and the inner diameter of the compression spring (10) is larger than the diameter of the second round hole.
5. The multi-start threaded handle set of a quick release and quick lock of claim 1, wherein: the multi-start thread may be a four start thread.
6. The multi-start threaded handle set of a quick release and quick lock of claim 1, wherein: the multiple start thread may be a three start thread.
7. The multi-start threaded handle set of a quick release and lock of claim 2, wherein: the handle (3) inclines upwards at an angle of 5 degrees to the horizontal direction;
the number of teeth of the inner straight teeth (7) is 10, and the number of teeth of the outer straight teeth (6) is 30.
8. The use method of the multi-thread handle device of the quick-opening and quick-locking is characterized in that: the method comprises a quick locking operation step and a quick unlocking operation step;
the quick locking operation steps are as follows:
step 1, rotating a handle (3), and locking a first fastener (4) to be fastened and a second fastener (5) to be fastened by a multi-thread bolt;
step 2, pulling the handle (3) outwards to separate the inner straight teeth (7) of the sleeve (2) from the outer straight teeth (6) of the screw head (102), and rotating the handle (3) to a proper position;
step 3, the handle (3) is loosened, and the sleeve (2) and the screw head (102) are re-meshed under the action of the restoring force of the compression spring (10);
the quick opening operation steps are as follows:
step 1, rotating a handle (3), and loosening a first fastener (4) to be fastened and a second fastener (5) to be fastened through multi-thread threads;
step 2, pulling the handle (3) outwards to separate the inner straight teeth (7) of the sleeve (2) from the outer straight teeth (6) of the screw head (102), and rotating the handle (3) to a proper position;
and 3, loosening the handle (3), and re-engaging the sleeve (2) and the screw head (102) under the restoring force action of the compression spring (10).
CN202011561627.6A 2020-12-25 2020-12-25 Multi-thread handle device of quick-opening and quick-locking and using method thereof Pending CN112709491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011561627.6A CN112709491A (en) 2020-12-25 2020-12-25 Multi-thread handle device of quick-opening and quick-locking and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011561627.6A CN112709491A (en) 2020-12-25 2020-12-25 Multi-thread handle device of quick-opening and quick-locking and using method thereof

Publications (1)

Publication Number Publication Date
CN112709491A true CN112709491A (en) 2021-04-27

Family

ID=75546392

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011561627.6A Pending CN112709491A (en) 2020-12-25 2020-12-25 Multi-thread handle device of quick-opening and quick-locking and using method thereof

Country Status (1)

Country Link
CN (1) CN112709491A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1236526A (en) * 1968-09-20 1971-06-23 Raymond Francois Emile Camus A fastening device
US4598614A (en) * 1983-12-29 1986-07-08 Heinrich Kipp Werk Hand lever turning mechanism
AU2183688A (en) * 1983-12-13 1988-12-01 John Brent Moetteli Improved ratchet wrench
US5356237A (en) * 1992-12-17 1994-10-18 Sung Jung T Expandable handles of walk-aiding wheeled frame
CN2199010Y (en) * 1994-06-23 1995-05-31 淄川锅炉配件厂 Quickly opening or closing anvil vice
DE19536350A1 (en) * 1995-09-29 1997-04-03 Daimler Benz Aerospace Ag Tool for removing countersunk bolts from quick-lock connectors
CN201132292Y (en) * 2007-08-16 2008-10-15 淮阴工学院 Cam Quick Lock Bench Vise
CN201882209U (en) * 2010-11-30 2011-06-29 胡人聪 Sleeve device with rapid locking mechanism and corresponding fitness bicycle
CN104816176A (en) * 2015-04-30 2015-08-05 湖北三江航天万峰科技发展有限公司 Rapid locking mechanism
CN204804623U (en) * 2015-06-26 2015-11-25 中船黄埔文冲船舶有限公司 Steel door is with preventing pirate's device and special spanner thereof
TWM562807U (en) * 2018-02-27 2018-07-01 利奇機械工業股份有限公司 Quick release device with adjustable angle handle
CN210149478U (en) * 2019-07-05 2020-03-17 邓云友 Quick locking and fixing seat for bicycle support

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1236526A (en) * 1968-09-20 1971-06-23 Raymond Francois Emile Camus A fastening device
AU2183688A (en) * 1983-12-13 1988-12-01 John Brent Moetteli Improved ratchet wrench
US4598614A (en) * 1983-12-29 1986-07-08 Heinrich Kipp Werk Hand lever turning mechanism
US4598614B1 (en) * 1983-12-29 1994-11-15 Monroe Engineering Products In Hand lever turning mechanism
US5356237A (en) * 1992-12-17 1994-10-18 Sung Jung T Expandable handles of walk-aiding wheeled frame
CN2199010Y (en) * 1994-06-23 1995-05-31 淄川锅炉配件厂 Quickly opening or closing anvil vice
DE19536350A1 (en) * 1995-09-29 1997-04-03 Daimler Benz Aerospace Ag Tool for removing countersunk bolts from quick-lock connectors
CN201132292Y (en) * 2007-08-16 2008-10-15 淮阴工学院 Cam Quick Lock Bench Vise
CN201882209U (en) * 2010-11-30 2011-06-29 胡人聪 Sleeve device with rapid locking mechanism and corresponding fitness bicycle
CN104816176A (en) * 2015-04-30 2015-08-05 湖北三江航天万峰科技发展有限公司 Rapid locking mechanism
CN204804623U (en) * 2015-06-26 2015-11-25 中船黄埔文冲船舶有限公司 Steel door is with preventing pirate's device and special spanner thereof
TWM562807U (en) * 2018-02-27 2018-07-01 利奇機械工業股份有限公司 Quick release device with adjustable angle handle
CN210149478U (en) * 2019-07-05 2020-03-17 邓云友 Quick locking and fixing seat for bicycle support

Similar Documents

Publication Publication Date Title
DE202016104318U1 (en) Aufrollerstruktur
CN112709491A (en) Multi-thread handle device of quick-opening and quick-locking and using method thereof
CN208620028U (en) A kind of laser projection
CN113137420A (en) Self-locking fastening bolt
DE3139192A1 (en) Casing, in particular for deodorant sticks
DE2341708A1 (en) SECURITY SCREW
CN2761225Y (en) A baseball cap with a hoop adjustment device
CN111502415B (en) Reversible lock body with square tongue protection
US20240142044A1 (en) Quick release device
CN110362150B (en) Handle fixing device with adjustable posture
CN206442977U (en) Multifunctional angling box
CN107713409B (en) A kind of double-locking Chinese medicine cabinet and its production, installation and application method
WO2012113094A1 (en) Loosening prevention safe lock
CN201156152Y (en) Spherical camera head
CN105530795B (en) The universal front and rear lock construction of slide rail
CN207211970U (en) A kind of lock type window handle
CN207279196U (en) Novel camera
CN208550596U (en) A kind of learning chair seat back lifting device and learning chair
CN217969692U (en) Handle adjusting device of tractor
DE9300485U1 (en) Fastening device for a wire rope
CN216795080U (en) Video monitor with hidden antenna
CN219285565U (en) Adjustable photographic lamp support
KR200241391Y1 (en) Unit to fix PDP moniter
CN216666195U (en) Large self-locking external nut with outer side open slot
CN222207502U (en) Locking device

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