CN201255161Y - Folding joint with locking structure - Google Patents
Folding joint with locking structure Download PDFInfo
- Publication number
- CN201255161Y CN201255161Y CNU2008200409352U CN200820040935U CN201255161Y CN 201255161 Y CN201255161 Y CN 201255161Y CN U2008200409352 U CNU2008200409352 U CN U2008200409352U CN 200820040935 U CN200820040935 U CN 200820040935U CN 201255161 Y CN201255161 Y CN 201255161Y
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- joint
- latch
- shape
- latch hook
- folding
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Abstract
A folding joint with a locking structure is characterized in that the connecting end of a first joint and the connecting end of a second joint are respectively provided with an inverted U-shaped connecting part, and a pair of hinged ears extend from two side walls at the opening end of the lower part of each inverted U-shaped connecting part; the two pairs of hinged ears are correspondingly overlapped and are provided with a pivot shaft in a penetrating way to hinge the first joint with the second joint; when the first joint and the second joint are folded, the two inverted U-shaped connecting parts are connected to form an inverted U-shaped cavity, and a locking piece is arranged in the inverted U-shaped cavity; the locking piece is jacked up by a spring, and a pressing part and a latch hook are arranged at the top part of the locking piece; a through hole corresponding to the pressing part is arranged at the top part of the inverted U-shaped connecting part of the first joint, and the pressing part extends from the through hole; a locking hole corresponding to the latch hook is arranged at the top part of the inverted U-shaped connecting part of the second joint, and the latch hook extends into the locking hole to constitute a locking state; the pressing part is pushed down to allow the locking piece to compress the spring, and the latch hook is separated from the locking hole to constitute a unlocking state. The utility model is convenient and easy to unlock and lock.
Description
Technical field
The utility model relates to a kind of folding joint of function hinge-like, be specifically related to a kind of folding joint that has lock function under deployed condition, and this folding joint is specially adapted to connect rod member.
Background technique
At present, a lot of products are for the ease of carrying, take in, storing on the market, all be designed to foldable type, as mini scaffold, family expenses ladder etc., long connection rod member is all arranged in these products, to realize folds shorten for rod member, must stem member be designed to multistage, directly hinged or connect between every section adjacent rod member by special folding joint with bearing pin.
Traditional folding joint is made up of first joint and second joint, and first joint and second joint are hinged by bearing pin.This folding joint is exactly a hinge on function, simple in structure, but it does not have lock function under deployed condition, so just can't adapt to the needs of folded product.If the folding joint of rod member can rotate arbitrarily, will there be very big hidden danger in rod member in the folded product launching all to need certain support strength under the user mode like this in Security.
Therefore, behind the people folding joint is improved, former bearing pin is substituted with bolt, the nut of on the bolt tail end, screwing on again, locking by bolt and nut compresses the veneer mutually of first joint and second joint, with the relative rotation position of first joint of the friction lock between the phase veneer and second joint.Though this kind design can lock the relative rotation position of articulation joint, but the operation of the locking and unlocking all bothers, and need screw nut during locking, unscrews nut during release again again; And the degree of tightness that nut revolves has directly determined the reliability of locking, the nut that all will go to great pains to screw when this just requires the operator to lock at every turn, and effort very, and unclamp also effort very of nut during release.
Summary of the invention
The release and the lock operation that exist in the prior art bother the utility model, the problem of effort in order to solve, and a kind of folding joint that locks convenient for unlocking is provided.
For achieving the above object, the technical solution adopted in the utility model is: a kind of folding joint of fixed structure with lock, comprise first joint and second joint, the connecting end of the connecting end of first joint and second joint has " U " shape joint respectively, each falls the hinged ear that extends pair of parallel on the two side, lower open end place of " U " shape joint, two pairs of corresponding overlap joints of hinged ear, and on the hinged ear of two couples of overlap joint, wear a pivot, make first joint and second joint hinged; Described pivot axis line is positioned at the residing plane of " U " shape joint end face of first joint and second joint;
Described first joint and second joint are under the folding joint deployed condition, two are fallen " U " shape joint and join and be combined into one and fall " U " shape chamber, in falling " U " shape chamber, this establishes a latch, this latch is provided with the slotted hole that is used for leading up and down, pivot is positioned at slotted hole, be provided with spring between pivot and the slotted hole top, this spring forces the latch top to be resisted against down the top in " U " shape chamber; Described latch top is provided with the press part by extending on the side direction of first joint, by extending on the side direction of second joint latch hook is set, and the top of " U " shape joint of first joint is to offering through hole in the position, press part, and stretch out through this through hole the press part; The top of " U " shape joint of second joint is to offering lockhole in the latch hook position, and latch hook stretches into lockhole and constitutes lock state; Press press part latch pressure spring, latch hook breaks away from lockhole and constitutes released state.
Related content in the technique scheme is explained as follows:
1, in the such scheme, described " on " D score directions such as " tops " is by the laying state shown in the accompanying drawing 1 definition, the press part of the folding joint shown in the accompanying drawing 1 towards direction be last, oppositely be down.Can overturn when this folding joint specifically uses and use.
2, in the such scheme, " described first joint and second joint are under the folding joint deployed condition " first joint wherein and the deployed condition of second joint are meant that first joint and second joint are expanded to the state of maximum angle, " U " shape joint amalgamation mutually of first joint and second joint under this state, first joint and the second joint relative position need to set by use under this state, can be that first joint and second angle are 180 ° of states, also can be the state at first joint and the second connector clamp obtuse angle.Corresponding, this folding joint also has a folded state, and promptly first joint and second joint are amounted to the state to minimum angle.
3, in the such scheme, described " slotted hole that is used for leading up and down " is meant and offers slotted hole along the vertical direction.This slotted hole specifically has following several preferred version: a, elongated slot extend upward to be offered longlyer, makes pivot to there being bigger space to be used to hold spring between the slotted hole inner top; B, elongated slot design not longly, but upwards design a longitudinal space that can hold spring at the elongated slot inner top.
4, in the such scheme, described latch hook is provided with the importing inclined-plane towards a side of second joint, and the user is expanded to this folding joint in the process of deployed condition, and " U " shape joint that falls of second joint cooperates with the importing inclined-plane, can automatically latch be pressed down, latch hook be hooked in the lockhole automatically lock.
5, in the such scheme, best hinged ear is designed to by falling the lower open end place sidewall of " U " shape joint towards the oblique setting of front lower place 45, make the articulation pivot axle center be positioned at the below of first joint and second joint, two outer end bottom profile, make under the folded state, first joint can reach parallel state fully with second joint.
6, in the such scheme, described latch can adopt block, plate-like piece etc.; Optimum scheme is: described latch constitutes by two sheet materials are superimposed, and two sheet material tops are superimposed, and symmetry bending laterally in middle and lower part forms the spring receiving cavity; Outwards hollow out fluting in the middle part of the plate face of bending on two sheet materials, the lower end of this two groove communicates and forms above-mentioned slotted hole.And the top in this spring holding cavity is stretched downwards and is provided with the spring locating column, and described spring upper end is enclosed within on this spring locating column, promptly with the spring locating column spring is led, and prevents spring bending when compression.
7, in the such scheme, the joint form of the hinged ear of described first joint and second joint has following several:
The spacing of a pair of hinged ear of a, first joint can be held a pair of hinged ear of second joint, and therefore a pair of hinged ear with second joint is embedded between a pair of hinged ear of first joint;
The spacing of a pair of hinged ear of b, second joint can be held a pair of hinged ear of first joint, and therefore a pair of hinged ear with first joint is embedded between a pair of hinged ear of second joint;
C, first joint and second joint adopt identical joint, a hinged ear on this joint is directly extended by sidewall, and another hinged ear is extended by the inside bending of sidewall, two hinged ears of first joint are overlapped in the same side of hinged ear corresponding on second joint, promptly staggered overlap joint is shown in accompanying drawing 8 dotted lines.First joint is mutually general with second joint in this scheme, and the part amount of preparation is reduced, and recommends to adopt.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because special construction of the present utility model, adopt latch that first joint and the second joint latch hook are firmly remained on deployed condition, effect has spring on the latch, need only pressing the press part, to make latch hook deviate from lockhole be release, as long as equally also press the press part during locking, make latch hook hook i.e. locking in the lockhole, the locking and unlocking all only need be pressed the press part, and is simple to operate, light; And when latch hook was provided with the importing inclined-plane, second joint can be depressed latch automatically upon deployment, latch hook is hooked in the lockhole lock, and was more easy;
2, because the utility model is with latch first joint and the second joint latch hook firmly to be remained on deployed condition, locking is reliable, and no external force is pressed the press part and just can not broken off relations, and is safe to use;
3, because latch is hidden in that first joint and second joint be combined into mutually under the utility model deployed condition falls in " U " shape chamber, do not take space outerpace substantially, external shape be similar to a rod member, beautiful shape, neatly.
Description of drawings
Accompanying drawing 1 is the utility model embodiment's a main TV structure schematic representation, the figure shows deployed condition;
Accompanying drawing 3 is looked schematic representation for the left side of accompanying drawing 1;
Accompanying drawing 4 is the schematic top plan view of accompanying drawing 1;
Accompanying drawing 5 is the schematic perspective view of bending process after the utility model embodiment release;
Accompanying drawing 6 is the utility model embodiment part decomposing state schematic representation;
Accompanying drawing 7 is looked schematic representation for the structure master of the utility model embodiment first joint and second joint;
Accompanying drawing 8 is looked schematic representation for the left side of accompanying drawing 7, and dotted line is represented the state hinged with another joint among the figure.
In the above accompanying drawing: 1, first joint; 2, second joint; 3, fall " U " shape joint; 4, hinged ear; 5, pivot; 6, latch; 7, press part; 8, latch hook; 9, through hole; 10, lockhole; 11, slotted hole; 12, spring holding cavity; 13, spring; 14, import the inclined-plane; 15, sheet material; 16, sheet material; 17, groove; 18, groove; 19, spring locating column; 20, fall " U " shape chamber.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: shown in accompanying drawing 1～accompanying drawing 8, a kind of folding joint of fixed structure with lock, comprise first joint 1 and second joint 2, the connecting end of the connecting end of first joint 1 and second joint 2 has " U " shape joint 3 respectively, each falls the hinged ear 4 that extends pair of parallel on the two side, lower open end place of " U " shape joint 3, two pairs of hinged ear 4 corresponding overlap joints, and on the hinged ear 4 of two couples of overlap joint, wear a pivot 5, make first joint 1 and second joint 2 hinged; Described pivot 5 shaft axiss are positioned at the residing plane of " U " shape joint end face of first joint and second joint.
Shown in accompanying drawing 1～accompanying drawing 6, described first joint 1 and second joint 2 are under folding joint deployed condition (deployed condition is that first joint 1 and second joint 2 are 180 ° state as shown in Figure 1), two are fallen " U " shape joint 3 and join and be combined into one and fall " U " shape chamber 20, in falling " U " shape chamber 20, this establishes a latch 6, this latch 6 is provided with the slotted hole 11 that is used for leading up and down, pivot 5 is positioned at slotted hole 11, be provided with spring 13 between pivot 5 and slotted hole 11 tops, this spring 13 forces latch 6 tops to be resisted against down the top in " U " shape chamber 20; Described latch 6 tops are provided with press part 7 by extending on the side direction of first joint 1, by extending on the side direction of second joint 2 latch hook 8 are set, and this latch hook 8 is provided with importing inclined-plane 14 towards a side of second joint 2; The top of " U " shape joint 3 of first joint 1 is to offering through hole 9 in 7 positions, press part, and stretch out through this through hole 9 press part 7; The top of " U " shape joint 3 of second joint 2 is to offering lockhole 10 in latch hook 8 positions, and latch hook 8 stretches into lockhole 10 and constitutes lock states; Press press part 7 latchs, 6 pressure springs, latch hook 8 breaks away from lockhole 10 and constitutes released state.
Shown in accompanying drawing 1 and accompanying drawing 7, the lower open end place sidewall that described hinged ear 4 is " U " shape joint 3 is 45 ° towards the oblique setting of front lower place 45 as θ angle among Fig. 7.Make like this under this folding joint deployed condition, pivot 5 shaft axiss remove in the residing plane of " U " shape joint end face that is in first joint 1 and second joint 2, also are partial to the below of first joint 1 and 2 liang of outer end bottom profile of second joint.When this folding joint uses, on the outer end of first joint 1 and second joint 2 respectively concentric to be connected upper lever (can be solid rod member, also can be pipe fitting) time, be the relatively belows of two rod member bottom wheel profile elongation lines of pivot 5 shaft axiss, make to reach state parallel fully even that draw close mutually under the two rod member folded states.The concrete Placement of first joint 1 and second joint 2 and rod member: the outer end that can be first joint 1 and second joint 2 embeds in the end of rod member, also can be that the outer end of first joint 1 and second joint 2 is coated on the end of rod member.
Shown in accompanying drawing 2, accompanying drawing 3, accompanying drawing 6, described latch 6 constitutes by two sheet materials 15,16 are superimposed, two sheet materials, 15,16 tops are superimposed, symmetry bending laterally in middle and lower part forms a cavity as spring receiving cavity 12 between sheet material 15,16, and, top in this spring holding cavity 12 is stretched downwards and is provided with spring locating column 19, described spring 13 upper ends are enclosed within on this spring locating column 19, promptly with 19 pairs of springs of spring locating column, 13 guiding, prevent spring 13 bending when compression; Outwards hollow out fluting 17,18 in the middle part of the plate face of bending on two sheet materials 15,16, the both sides of the lower end of this two groove 17,18 are provided with lug, form the above-mentioned slotted hole that is used for leading up and down 11.
Shown in accompanying drawing 7 and accompanying drawing 8, described first joint 1 and second joint 2 adopt structures identical as accompanying drawing 7, joint shown in the accompanying drawing 8, a hinged ear 4 on this joint is directly extended by sidewall, and another hinged ear 4 is by extended again after the inside bending of sidewall, i.e. these hinged ear 4 inside translations one apart from a, this equals the thickness of hinged ear 4 substantially apart from a, make two hinged ears 4 of first joint 1 be overlapped in the same side of hinged ear 4 corresponding on second joint 2 with this, promptly staggered overlap joint, shown in dotted line in the accompanying drawing 8, first joint 1 and second joint 2 still can keep concentric.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (5)
1, a kind of folding joint of fixed structure with lock, comprise first joint (1) and second joint (2), it is characterized in that: the connecting end of the connecting end of first joint (1) and second joint (2) has " U " shape joint (3) respectively, each falls the hinged ear (4) that extends pair of parallel on the two side, lower open end place of " U " shape joint (3), the corresponding overlap joint of two pairs of hinged ears (4), and on the hinged ear of two couples (4) of overlap joint, wear a pivot (5), make first joint (1) and second joint (2) hinged; Described pivot (5) shaft axis is positioned at the residing plane of " U " shape joint end face of first joint (1) and second joint (2);
Described first joint (1) and second joint (2) are under the folding joint deployed condition, two are fallen " U " shape joint (3) and join and be combined into one and fall " U " shape chamber (20), in falling " U " shape chamber (20), this establishes a latch (6), this latch (6) is provided with the slotted hole (11) that is used for leading up and down, pivot (5) is positioned at slotted hole (11), be provided with spring (13) between pivot (5) and slotted hole (11) top, this spring (13) forces latch (6) top to be resisted against down the top in " U " shape chamber (20); Described latch (6) top is provided with press part (7) by extending on the side direction of first joint (1), by extending on the side direction of second joint (2) latch hook (8) is set, the top of " U " shape joint (3) of first joint (1) is to offering through hole (9) in position, press part (7), and stretch out through this through hole (9) press part (7); The top of " U " shape joint (3) of second joint (2) is to offering lockhole (10) in latch hook (8) position, and latch hook (8) stretches into lockhole (10) and constitutes lock state; Press press part (7) latch (6) pressure spring, latch hook (8) breaks away from lockhole (10) and constitutes released state.
2, the folding joint of fixed structure with lock according to claim 1 is characterized in that: described latch hook (8) is provided with importing inclined-plane (14) towards a side of second joint (2).
3, the folding joint of fixed structure with lock according to claim 1 is characterized in that: described hinged ear (4) is for falling the lower open end place sidewall of " U " shape joint (3) towards the oblique setting of front lower place 45.
4, the folding joint of fixed structure with lock according to claim 1, it is characterized in that: described latch (6) is by the superimposed formation of two sheet materials (15,16), two sheet materials (15,16) top is superimposed, symmetry bending laterally in middle and lower part forms spring receiving cavity (12), outwards hollow out fluting (17,18) in the middle part of the plate face of bending on two sheet materials, the lower end of this two groove (17,18) communicates and forms above-mentioned slotted hole (11).
5, the folding joint of fixed structure with lock according to claim 1, it is characterized in that: described first joint (1) adopts the identical joint of structure with second joint (2), hinged ear (4) on this joint is directly extended by sidewall, and another hinged ear (4) is extended by the inside bending of sidewall; Two hinged ears (4) of first joint (1) are overlapped in the same side that second joint (2) is gone up corresponding hinged ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200409352U CN201255161Y (en) | 2008-06-26 | 2008-06-26 | Folding joint with locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200409352U CN201255161Y (en) | 2008-06-26 | 2008-06-26 | Folding joint with locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255161Y true CN201255161Y (en) | 2009-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200409352U Expired - Lifetime CN201255161Y (en) | 2008-06-26 | 2008-06-26 | Folding joint with locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255161Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592174B (en) * | 2009-06-30 | 2010-08-18 | 航天东方红卫星有限公司 | Automatic locked folding rod piece connector |
| CN102852942A (en) * | 2012-10-09 | 2013-01-02 | 迈柯唯医疗设备(苏州)有限公司 | Locking pendulum suspending handle screw |
| WO2013013512A1 (en) * | 2011-07-22 | 2013-01-31 | 客贝利(厦门)休闲用品有限公司 | Folding structure |
| CN107031815A (en) * | 2015-12-25 | 2017-08-11 | 北京臻迪机器人有限公司 | Unmanned plane horn locking tripper and unmanned plane |
| CN110821132A (en) * | 2019-11-11 | 2020-02-21 | 吴巍 | Quick assembly disassembly's foldable scaffold frame |
| CN111746572A (en) * | 2019-03-26 | 2020-10-09 | 比亚迪股份有限公司 | Escape ladder, rail vehicle and rail transit system |
| CN111887580A (en) * | 2020-07-09 | 2020-11-06 | 浙江护童人体工学科技股份有限公司 | Panel turnover type table and sliding unlocking type panel turnover device |
| CN114273530A (en) * | 2021-12-29 | 2022-04-05 | 奇瑞汽车股份有限公司 | Die limiting device |
-
2008
- 2008-06-26 CN CNU2008200409352U patent/CN201255161Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592174B (en) * | 2009-06-30 | 2010-08-18 | 航天东方红卫星有限公司 | Automatic locked folding rod piece connector |
| WO2013013512A1 (en) * | 2011-07-22 | 2013-01-31 | 客贝利(厦门)休闲用品有限公司 | Folding structure |
| CN102852942A (en) * | 2012-10-09 | 2013-01-02 | 迈柯唯医疗设备(苏州)有限公司 | Locking pendulum suspending handle screw |
| CN107031815A (en) * | 2015-12-25 | 2017-08-11 | 北京臻迪机器人有限公司 | Unmanned plane horn locking tripper and unmanned plane |
| CN107031815B (en) * | 2015-12-25 | 2021-01-29 | 北京臻迪机器人有限公司 | Unmanned aerial vehicle horn locking unlocking device and unmanned aerial vehicle |
| CN111746572A (en) * | 2019-03-26 | 2020-10-09 | 比亚迪股份有限公司 | Escape ladder, rail vehicle and rail transit system |
| CN111746572B (en) * | 2019-03-26 | 2022-10-18 | 比亚迪股份有限公司 | Escape ladder, rail vehicle and rail transit system |
| CN110821132A (en) * | 2019-11-11 | 2020-02-21 | 吴巍 | Quick assembly disassembly's foldable scaffold frame |
| CN111887580A (en) * | 2020-07-09 | 2020-11-06 | 浙江护童人体工学科技股份有限公司 | Panel turnover type table and sliding unlocking type panel turnover device |
| CN111887580B (en) * | 2020-07-09 | 2022-07-15 | 浙江护童人体工学科技股份有限公司 | Panel turnover type table and sliding unlocking type panel turnover device |
| CN114273530A (en) * | 2021-12-29 | 2022-04-05 | 奇瑞汽车股份有限公司 | Die limiting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Suzhou Pica Aluminum Industry Co., Ltd. Assignor: Zhang Jianyuan Contract record no.: 2010990000149 Denomination of utility model: Folding joint with locking structure Granted publication date: 20090610 License type: Exclusive License Record date: 20100329 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090610 |
|
| CX01 | Expiry of patent term |