CN207565671U - A kind of lock adjustment mechanism and with its chair and cart - Google Patents
A kind of lock adjustment mechanism and with its chair and cart Download PDFInfo
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- CN207565671U CN207565671U CN201721651905.0U CN201721651905U CN207565671U CN 207565671 U CN207565671 U CN 207565671U CN 201721651905 U CN201721651905 U CN 201721651905U CN 207565671 U CN207565671 U CN 207565671U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 78
- 230000001105 regulatory effect Effects 0.000 claims abstract description 25
- 230000001154 acute effect Effects 0.000 claims description 9
- 238000013016 damping Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 11
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 210000003734 kidney Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a kind of lock adjustment mechanism and with its chair and cart, for locking the first rod piece and the second rod piece that are slidably connected, the lock adjustment mechanism includes the locking piece being rotatably arranged on the first rod piece, the elastic component for locking piece to be made to be moved towards the second rod piece, and the unlock piece for locking piece to be driven to be moved far from the second rod piece, when lock adjustment mechanism is in the lock state, the inclined-plane of keyed end is resisted against on the second rod piece and forms pressure angle between the second rod piece；When lock adjustment mechanism unlocks, inclined-plane is detached from the second rod piece.Regulating mechanism disclosed in the utility model realizes locking of the cross bar on montant using the damping of locking piece and montant bar wall, unlock is realized using locking piece rotation is pushed, cross bar is enable to be locked in the arbitrary height position of montant, realize step-less adjustment of the cross bar on montant, it is simple in structure, it is easy to operate.
Description
Technical field
The utility model is related to mechanical adjustment field, more particularly to a kind of regulating mechanism and with regulating mechanism chair and
Cart.
Background technology
It is past in order to adapt to the applicable requirements of different user group and extend service life of the same user to the product
Toward height or width adjusting device is increased on product, relied with the parent for further obtaining consumer.It is for example, general on children dinning chair
It is provided with and puts the pedal of foot for child, and the difference due to different consumers individual and the growth with consumer's build, make
Obtaining pedal needed to set different height in different service stages, and current most of pedals are height adjustable structure.
But current height adjusting structure, which is gear, to be adjusted, for example is divided into high, normal, basic third gear, leads to not to allow consumer
Always it is in a complete comfortable use state.
There is no simple in structure, simple operation regulating mechanisms in the prior art, make corresponding product in no shelves stepless-adjustment
Section aspect of performance is short of.
Utility model content
In order to solve problem of the prior art, the utility model provides a kind of lock adjustment mechanism and with its chair
And cart, it realizes locking of first rod piece on the second rod piece using the damping of locking piece and bar wall, is turned using locking piece is pushed
It is dynamic to realize unlock, the first rod piece is enable to be locked in the arbitrary height position of the second rod piece, realizes the first rod piece second
Step-less adjustment on rod piece, it is simple in structure, it is easy to operate.The technical solution is as follows：
On the one hand, the utility model provides a kind of lock adjustment mechanism, for lock the first rod piece for being slidably connected with
Second rod piece, the lock adjustment mechanism includes being rotatably arranged on first rod piece and the locking piece with keyed end, use
Make the keyed end that there is the bullet towards elastic force needed for the second rod piece movement tendency in the offer locking piece rotation
Property the part and unlock piece that the keyed end is made to be moved far from second rod piece for the locking piece to be driven to rotate,
In, the keyed end towards the end face of second rod piece be inclined-plane, when the lock adjustment mechanism is in the lock state, institute
The inclined-plane for stating keyed end is resisted against on second rod piece and forms pressure angle between second rod piece；When the lock
When determining regulating mechanism unlock, the inclined-plane is detached from second rod piece.
Further, the direction that the inclined-plane of the keyed end the second rod piece opposite with limiting first rod piece slides
Between angle be acute angle.
Further, the locking piece includes the first locking plate and the second locking plate, and second rod piece has along itself
The first direction of extending direction and the second direction opposite with first direction, when the lock adjustment mechanism is in the lock state
When, the angle between the keyed end inclined-plane and the first direction of first locking plate is at an acute angle, the locking of the second locking plate
Hold the angle between inclined-plane and the second direction at an acute angle, when the lock adjustment mechanism is in the lock state, described the
One locking plate limits first rod piece and is moved to wherein one end of the second rod piece, and second locking plate limits first bar
Part is moved to the other end of the second rod piece.
Further, the unlock piece pushes first locking plate to rotate and push described second to second direction
Locking plate is rotated to first direction.
On the other hand, the utility model additionally provides a kind of chair, described including seat, pedal and at least two chair legs
Pedal horizontal is arranged between two chair legs, and the pedal is provided at both ends with lock adjustment mechanism as described above, the lock
Determine part, elastic component and unlock piece to be arranged at pedal, the keyed end inclined-plane of the locking piece is contacted with chair leg outer wall.
Further, rotating handles are additionally provided on the pedal, the rotating handles include being arranged on outside the pedal
Handheld Division and the auxiliary section being fixed on the Handheld Division are provided with the first groove and the second groove on the auxiliary section,
Two unlock pieces are horizontally set on auxiliary section both sides, when the lock adjustment mechanism is in the lock state, two unlock pieces point
It Dui Ying not coordinate with first groove and the second groove；When rotating the Handheld Division, the unlock piece is corresponded to described in disengaging
First groove and the second groove and be displaced outwardly, and then push locking piece keyed end inclined-plane be detached from leg.
Further, the shifting part extended to outside the pedal is additionally provided on the unlock piece, the shifting part can
It is moved to close to corresponding chair leg direction, and then the unlock piece pushes the keyed end inclined-plane of locking piece to be detached from leg.
Further, position limiting structure is provided on leg outer wall, the keyed end of the locking piece is arranged on the limit
In bit architecture, the position limiting structure includes the limit channels that concave panel, limiting slot or double positive stop strips are formed.
In another aspect, the utility model additionally provides a kind of cart, including car body, wheel and setting pushing away on the car body
The handle includes outer tube and is at least partially disposed in the inner tube of outer tube, is provided in said inner tube as described above
Lock adjustment mechanism, the locking piece, elastic component and unlock piece are arranged in said inner tube, the keyed end of the locking piece from
Said inner tube is stretched out, and the keyed end inclined-plane is contacted with the inner wall of outer tube.
Further, the quantity of the outer tube for two and is symmetricly set on car body both sides, and said inner tube is U-tube, institute
Unlock piece is stated as traction rope or push rod, the one end of the unlock piece far from locking piece extends to the outside of outer tube.
What technical solution provided by the utility model was brought has the beneficial effect that：
1) locking piece is made to reach unlocked state by rotating handles, and then realizes the first rod piece along on the second rod piece bar wall
Lower movement；
2) it is unlocked or locks by rotating handles, simple operation without tool, has been manually done；
3) the first rod piece can be locked in the arbitrary height position of the second rod piece, realize the first rod piece in the second rod piece
On step-less adjustment；
4) regulating mechanism can be applied on a variety of different products (dining chair pedal, cart handle), applied widely, market
Prospect is big.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the unlocked state schematic diagram for the regulating mechanism that the utility model embodiment 1 provides；
Fig. 2 is the lock-out state schematic diagram for the regulating mechanism that the utility model embodiment 1 provides；
Fig. 3 is the structure diagram for the regulating mechanism that the utility model embodiment 1 provides；
Fig. 4 is the exploded perspective view of regulating mechanism in Fig. 3；
Fig. 5 is the enlarged fragmentary cross section of regulating mechanism in Fig. 3；
Fig. 6 is the close-up schematic view of regulating mechanism unlocked state in Fig. 1；
Fig. 7 is the close-up schematic view of regulating mechanism lock-out state in Fig. 2；
Fig. 8 is application schematic diagram of the regulating mechanism of the offer of the utility model embodiment 1 on dining chair；
Fig. 9 is that the regulating mechanism that the utility model embodiment 3 provides applies the first state schematic diagram on handle；
Figure 10 is that the regulating mechanism that the utility model embodiment 3 provides applies the second status diagram on handle；
Figure 11 is the first structure schematic diagram of the regulating mechanism on the handle of Fig. 9；
Figure 12 is the second structure diagram of the regulating mechanism on the handle of Fig. 9；
Figure 13 is that the regulating mechanism that the utility model embodiment 2 provides applies the first state on splayed supporting leg to illustrate
Figure；
Figure 14 is that the regulating mechanism that the utility model embodiment 2 provides applies the second state on splayed supporting leg to illustrate
Figure；
Figure 15 is that Fig. 1 has the structure diagram locked above and below the realization of twin-lock piece to regulating mechanism shown in Fig. 8；
Figure 16 is the close-up schematic view of twin-lock piece in Figure 15.
Wherein, reference numeral is：1- locking pieces, the first locking plates of 11-, the second locking plates of 12-, 2- sliding parts, 3- rotations
Handle, 31- auxiliary sections, the first grooves of 32-, the second grooves of 33-, 34- Handheld Divisions, 4- unlock pieces, 41- kidney slots, the first bars of 5-
Part, 6- positioning pins, 7- elastic components, 8- locating pieces, the second rod pieces of 9-, 10- foot pedals.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model part, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's all other embodiments obtained without making creative work all should
When the range for belonging to the utility model protection.
It should be noted that term " first " in the specification and claims of the utility model and above-mentioned attached drawing,
" second " etc. is the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that in this way
The data used can be interchanged in the appropriate case, can be in addition at this so as to the embodiment of the utility model described herein
In diagram or description those other than sequence implement.In addition, term " comprising " and " having " and their any deformation, meaning
Figure is to cover non-exclusive include.
Embodiment 1
In one embodiment of the utility model, a kind of lock adjustment mechanism is provided, referring to Fig. 2, Fig. 3 and Fig. 4, institute
It states lock adjustment mechanism to be arranged on the first rod piece 5, first rod piece 5 is arranged between two the second rod pieces 9, i.e. the first bar
Part 5 be cross bar, the second rod piece 9 be montant, the lock adjustment mechanism for adjust 5 and second rod piece 9 of the first rod piece it
Between position relationship, first rod piece 5 can be locked in the arbitrary height position of the second rod piece 9 by the lock adjustment mechanism
It puts, the lock adjustment mechanism includes the rotating handles 3 being arranged on the first rod piece 5 and the unlock being arranged in the first rod piece 5
Part 4 and sliding part 2 are provided with locking piece 1, positioning pin 6 and elastic component 7 (preferably compression spring) in the sliding part 2：Locking piece 1
The pin hole coordinated with positioning pin 6 is equipped with, is mounted on locking piece 1 in sliding part 2, and make locking piece 1 by the positioning pin 6
It can rotate around positioning pin 6, the side of the first rod piece 5 of one end stretching of the 1 remotely located pin 6 of locking piece, and with
Second rod piece 9 contacts, specially：Under the thrust of compression spring, locking piece 1 is close to one end of the second rod piece 9 around 6 turns of positioning pin
Latched position is moved, i.e. one end of locking piece 1 resists the second rod piece 9, first rod piece 5 is made to be fixed on the second rod piece 9；Separately
On the one hand, under the thrust of unlock piece 2, the locking piece 1 turns to solution lock-bit close to one end of the second rod piece 9 around positioning pin 6
It puts, first rod piece 5 is enable to be moved along the second rod piece 9.
In the utility model embodiment, the quantity of the locking piece 1 is two, and is separately positioned on the first rod piece 5
Both ends, referring to Fig. 4 and Fig. 5, compression spring, 4 and second rod piece 9 of unlock piece are corresponded with locking piece 1, the compression spring and unlock
Part 4 is arranged on the same side of corresponding locking piece 1, and second rod piece 9 is arranged on the opposite side of corresponding locking piece 1, described
Compression spring provides the locking piece 1 and rotates and have the keyed end and moved towards second rod piece 9, and the unlock piece 4 is used
The keyed end is made to be moved far from second rod piece 9 in the locking piece 1 is driven to rotate.
The process of locking is specific as follows：Referring to Fig. 2 and Fig. 7, the locking piece 1 is inclined-plane close to one end of the second rod piece 9
(in the present embodiment, the beveled end of the locking piece 1 is tilts down, then unlocked position is said herein in the lower section of latched position
The height of locked is for the lock-out state of the cross bar of sustained height and unlocked state), it is described
Angle between the direction that the inclined-plane and limitation first rod piece 5 of keyed end are slided with respect to the second rod piece 9 is acute angle, pressure
The other end of spring and the locking piece 1 offsets, and the beveled end of locking piece 1 is made to withstand on the second rod piece 9 by the spring stress of compression spring
On bar wall, when applying downward power to the first rod piece 5, locking piece 1 forms one by 6 axial rotation of positioning pin with the second rod piece 9
Fixed pressure angle makes 1 and second rod piece 9 of locking piece more and more tight, until the first rod piece 5 can not slide downward, locking at this time adjusts
Section mechanism is in the lock state, and locking piece 1 is in the locked position.
The process of unlock is specific as follows：Referring to Fig. 1 and Fig. 6, rotating handles 3 include Handheld Division 34 and are fixed at hand-held
Auxiliary section 31 in portion 34, is provided with the first groove 32 and the second groove 33 on the auxiliary section 31, two unlock pieces 4 respectively with
First groove, 32 and second groove 33 coordinates, meanwhile, the unlock piece 4 is arranged in the bar-shaped trough in the first rod piece 5, when
When rotating the Handheld Division 34, the unlock piece 4 is detached from the first groove 32 and the second groove 33, so along the bar-shaped trough to
Outer movement (moved to locking piece 1, and push locking piece 1), the unlock piece 4 are displaced outwardly, i.e., push the locking of both sides respectively
Part 1 is rotated down around positioning pin 6, and compression spring is further compressed at this time, and 9 bar wall of the second rod piece of disengaging of locking piece 1 (or lock
Determine 1 and second rod piece of part, 9 bar wall point contact, lose and instead exert oneself), lock adjustment mechanism is in the unlocked state at this time, locking piece 1
It is in the unlocked position, the first rod piece 5 can be moved up and down along the second rod piece 9.
In order to unlock piece 4 is slided in bar-shaped trough play the role of guide-localization (could be to locking piece 1 without departing from bar-shaped trough
Promoted), kidney slot 41 is equipped on the unlock piece 4, being equipped with locating piece 8 in the kidney slot 41 (preferably positions
Screw), when locking piece 1 is in the locked position, the locating piece 8 is close to the described one end of kidney slot 41 far from rotating handles 3
Madial wall；When locking piece 1 is in the unlocked position, the locating piece 8 is close to the kidney slot 41 close to the one of rotating handles 3
The madial wall at end.
The utility model is not construed as limiting the direction of rotation of rotating handles 3 (Handheld Division 34), as long as on rotating handles 3
One groove 32 and the second groove 33 are detached from unlock piece 4, unlock piece 4 are made directly to contradict non-on the auxiliary section 31 on rotating handles 3
The technical solution of the utility model can be realized at first groove 32 and the second groove 33, principle is as follows：When unlock piece 4 and rotation
The first groove 32 and the second groove 33 on handle 3 coordinate, then unlock piece 4 is opposite is retracted, when unlock piece 4 is detached from rotating handles 3
On the first groove 32 and the second groove 33 when, then 4 relative distension of unlock piece, because there are range difference between two states, i.e.,
When unlock piece 4 is detached from the first groove 32 and the second groove 33 on rotating handles 3, the actually auxiliary section on rotating handles 3
On 31 side walls in addition to the cylindrical surface of groove being released by unlock piece 4 to both sides, and unlock piece 4 further pushes locking piece 1 downward
It turns an angle, when so that the first rod piece 5 is moved up or down along the second rod piece 9, will not form pressure angle, locking piece
1 and second there is no dampings, the first rod piece 5 between rod piece 9 arbitrarily to be slided along the second rod piece 9.
Rotating handles 3 are rotated back into initial position or are rotated further along former direction, until the first groove 32 and second is recessed
Slot 33 goes to the angle coordinated with unlock piece 4, and under the pressing force effect of compression spring, there are one to centre to unlock piece 4 for locking piece 1
Thrust, when the first groove 32 and the second groove 33 return to cooperation position, the inner end of the unlock piece is caught in described immediately
(32 and second groove 33 of the first groove is preferably vee gutter or arc groove, is corresponded to for first groove 32 and the second groove 33
Ground, one end that the unlock piece 4 coordinates correspond to closed angle end or protrusion arc tips), the unlock piece 4 is to locking in this case
The thrust of part 1 disappears, and locking piece 1 is rotated upwardly into initial angle under the pretightning force effect of compression spring, along with to the first rod piece 5
Downward power makes to form pressure angle between 1 and second rod piece 9 of locking piece, reaches lock-out state, that is, realizes the first rod piece 5
The arbitrary height position of two rod pieces 9 is locked.
Embodiment 2
Unlike being slided up and down between two the second rod pieces 9 from the first rod piece 5 in embodiment 1, it is in the present embodiment
Realize cross bar slidable adjustment on single second rod piece 9, specially：The locking piece 1, elastic component, 4 and second rod piece of unlock piece
9 quantity is one, and second rod piece 9 is arranged on the side of locking piece 1, and the elastic component and unlock piece 4 are arranged on lock
Determine the opposite side of part 1.
Referring to Figure 13 and 14, do not connected between the unlock piece 4 in two locking mechanisms at both ends by rotating handles 3, and
It is respective independence, when squeezing unlock piece 4 outward at the same time, you can realize step-less adjustment.
In addition to applying on the chair pedal that four supporting legs in Fig. 8 are vertically arranged, it can be applied in Figure 13's and Figure 14
On splay supporting leg, the foot pedal 10 of chair is slidably arranged on first rod piece 5 at both ends, and Figure 13 is in highest for foot pedal
Position, Figure 14 are in extreme lower position for foot pedal.Specific implementation can be：The pedal includes the first plate, the second plate
Opposite move can simultaneously occur for the both ends that part and third plate, first plate and third plate are separately positioned on the second plate
Dynamic, the shifting part is separately positioned on first plate and third plate, i.e., (the figure when foot pedal is in extreme higher position
13), the first plate and third plate are mobile to centre relative to the second plate, and pedal overall length shortens；When foot pedal is in lowest order
When putting (Figure 14), the first plate and third plate are moved relative to the second plate to both ends, and pedal overall length increases.
The concrete structure of lock adjustment mechanism is referring to embodiment 1, and details are not described herein.
Except this, in another embodiment, from the beveled end of locking piece 1 in embodiment 1 for unlike tilting down,
In embodiment, the beveled end of the locking piece 1 is tilts upwards, then unlocked position equally, is said herein in the top of latched position
The height of locked be for the lock-out state of the cross bar of sustained height and unlocked state.Herein
In the case of, the direction of locking is opposite with above-mentioned locking process：When applying upward power to the first rod piece 5, locking piece 1 passes through positioning
6 axial rotation of pin forms certain pressure angle with the second rod piece 9, makes 1 and second rod piece 9 of locking piece more and more tight, until first
Rod piece 5 can not upward sliding, at this time lock adjustment mechanism be in the lock state, locking piece 1 is in the locked position.
Embodiment 3
The utility model additionally provides a kind of cart, including car body, the handle of wheel and setting on the car body, the handle
On be provided with lock adjustment mechanism as described above.Specially：The handle includes outer tube and is at least partially disposed in outer tube
The inner tube in portion is provided with lock adjustment mechanism as described in Example 1, the locking piece, elastic component and unlock in said inner tube
Part is arranged in said inner tube, and the keyed end of the locking piece is stretched out from said inner tube and contacted with the inner wall of outer tube.It is described
The quantity of outer tube is two and is symmetricly set on car body both sides, and said inner tube is U-tube, and the unlock piece is traction rope or pushes away
Bar, the one end of the unlock piece far from locking piece extend to the outside of outer tube.
Referring to shown in Fig. 9-12, first rod piece 5 is at least partially disposed in the second rod piece 9, the positioning pin 6 and
One rod piece 5 is fixedly connected, i.e., lock adjustment mechanism is arranged in the first rod piece 5, and the first rod piece 5 is stretched out in one end of locking piece 1
Tube wall, the lock adjustment mechanism includes locking piece 1, elastic component 7, unlock piece 4 and for determining the locking piece 1
The positioning pin 6 of position；
The locking piece 1 is arranged between the first rod piece 5 and the second rod piece 9 that (one end of locking piece 1 is stretched out from the first rod piece
To the inner wall of the second rod piece 9), and can be rotatably arranged at positioning pin 6, the unlock piece 4 is respectively used to push away with elastic component 7
It moves the locking piece 1 to rotate to different directions, under the thrust of the elastic component 7, the locking piece 1 turns to locking bit
It puts, first rod piece 5 is made to be fixed with the second rod piece 9；Under the thrust of unlock piece 4, the locking piece 1 turns to solution lock-bit
It puts, first rod piece 5 is enable to be moved along the second rod piece 9.Referring to Figure 11 and Figure 12 it is found that when locking piece is in locking bit
When putting, locking piece 1 resists the inner wall of the second rod piece 9, prevents the first rod piece 5 from being moved up and down in the second rod piece 9；Work as locking piece
When being in the unlocked position, locking piece 1 be detached from the second rod piece 9 inner wall, enable the first rod piece 5 in the second rod piece 9 on move down
Dynamic, to sum up, the lock adjustment mechanism can realize the step-less adjustment up and down of cart handle, and Fig. 9 is in extreme lower position for handle,
Figure 10 is in extreme higher position for handle.
The lock adjustment mechanism can be applied to multiple product, referring to Fig. 8, for applying on children dinning chair, on
It states the lock adjustment mechanism described in embodiment to be arranged between the chair leg of dining chair, the foot pedal 10 of the dining chair in Fig. 8 is mounted on lock
Determine on regulating mechanism, and realize that step-less adjustment, the utility model apply lock adjustment mechanism up and down with lock adjustment mechanism
The concrete type of product be not construed as limiting, in addition to the dining chair in Fig. 8, further including other, all have the function of the chair taken,
In the present embodiment, trolley also belongs to chair, and the lock adjustment mechanism can be applied equally on the foot pedal of trolley (not
Diagram), the lock adjustment mechanism can be applied on ladder, and the lock adjustment mechanism with foot pedal in addition to can match
It closes, (not shown) can also be coordinated with seat, the seat is together with above-mentioned lock adjustment mechanism on seat, stool
Etc., realize the step-less adjustment up and down of seat plate, in the protection domain of the requires of the utility model, lock adjustment that chair includes
Mechanism includes the adjusting for pedal and/or the adjusting for seat, enumerates not to the utmost herein.
Embodiment 4
In above-described embodiment, each locking piece 1 includes a locking plate, because the locking principle of the application is locked out part
1 beveled end is withstood on 9 bar wall of the second rod piece, and when applying pressure to the first rod piece 5, the application of pressure makes locking piece 1 and second
Rod piece 9 forms certain pressure angle, makes 1 and second rod piece 9 of locking piece more and more tight, until the first rod piece 5 is without the second bar of normal direction
One end of part 9 is slided, and lock adjustment mechanism is in the lock state at this time；But there are one defects for this structure, are exactly in this shape
The first rod piece 5 can be moved to the other end of the second rod piece 9 under state, i.e., under above-mentioned application pressure opposite direction stressing conditions,
First rod piece 5 can be moved along the second rod piece 9.
In the present embodiment, it proposes a kind of new locking structure, can be applied equally to the application of above three embodiments
In scene, the main distinction of new locking structure is：Each locking piece 1 includes the first locking plate 11 and the second locking plate
12, referring to Figure 12 and Figure 15, first locking plate 11 turns to corresponding latched position, limits first rod piece 5 to the
Wherein one end movement of two rod pieces 9；Second locking plate 12 turns to corresponding latched position, limits first rod piece 5
It is moved to the other end of the second rod piece 9.
It in a preferred embodiment, is illustrated by taking the twin-lock piece in Figure 15 as an example, enlarged drawing is described referring to Figure 16
First locking plate 11 and the second locking plate 12, which are preferably provided at same positioning pin 6, (to be arranged on different positioning pins 6 equally may be used
To realize technical scheme of the present invention), the unlock piece 4 pushes the first locking plate 11 and the second locking plate 12 to turn to first direction
Dynamic, the elastic component 7 pushes the first locking plate 11 and the second locking plate 12 to be rotated to second direction.Due to 11 He of the first locking plate
Therefore the end for offseting with the second rod piece 9 of second locking plate 12, pushes respectively in the both sides of positioning pin 6 in unlock piece 4
When first locking plate 11 arrives unlocked position, synchronously, also pushing the second locking plate 12, similarly, elastic component 7 synchronizes to unlocked position
The first locking plate 11 and the second locking plate 12 is pushed to reach latched position, after reaching latched position, as shown in figure 12, the first locking
Piece 11 limits the first rod piece 5 and moves down, and the second locking plate 12 limits the first rod piece 5 and moves up, and realizes fixed point locking.
Except this, can also be arranged on the foot pedal of dining chair or cart, referring to Figure 15 and Figure 16, twin-lock piece mentioned here
Structure refers to that the locking piece 1 of every side (left and right sides of the first rod piece 5) includes two locking plates, i.e. the first locking plate 11 and the
Two locking plates 12, the locking plate of the same side are locking shape arranged symmetrically, as shown in figure 15 close to one end inclined-plane of the second rod piece 9
State, second rod piece have the first direction (upward direction in figure) and opposite with first direction the along itself extending direction
Two directions (in figure in downward direction), when the lock adjustment mechanism is in the lock state, the keyed end of first locking plate
Angle between inclined-plane and the first direction is at an acute angle, between the keyed end inclined-plane of the second locking plate and the second direction
Angle is at an acute angle, compared with Fig. 2, the position of elastic component 7 and different with the specific connection mode of locking piece, in fig.15,
Under the stress of elastic component 7, when the first locking plate 11 of both sides turns to downward latched position, the second locking plate 12 rotates
To upward latched position, the principle of locking is identical with described in embodiment 1：The beveled end of first locking plate 11 withstands on the second bar
On 9 bar wall of part, when applying downward pressure to the first rod piece 5, the application of pressure makes the first locking plate 11 be formed with the second rod piece 9
Certain pressure angle makes the first locking plate 11 and the second rod piece 9 more and more tight, makes the first rod piece 5 can not slide downward；Second lock
The beveled end of stator 12 is withstood on 9 bar wall of the second rod piece, is upwarded pressure when to the application of the first rod piece 5, and the application of pressure makes the
Two locking plates 12 and the second rod piece 9 form certain pressure angle, make the second locking plate 12 and the second rod piece 9 more and more tight, make the
One rod piece 5 can not be slided to upper end, and lock adjustment mechanism is in the lock state at this time, and the first rod piece 5 can not move up and down.Work as rotation
Turn during the rotating handles 3 (not shown), two unlock pieces 4 are detached from the first groove 32 and second on the auxiliary section 31 respectively
Groove 33 is simultaneously mobile to outside, and under the active force of unlock piece 4, first locking plate 11 in left side is (downward) counterclockwise to be rotated (i.e.
Rotated to the second direction), the second locking plate 12 is (upward) clockwise to be rotated and (is rotated to the first direction), right side
(downward) rotation clockwise of first locking plate 11, the second locking plate 12 is (upward) counterclockwise to be rotated, then regardless of the first rod piece 5 along
When second rod piece 9 moves up or down, the first locking plate 11 and the second locking plate 12 will not all be formed with 9 bar wall of the second rod piece
Pressure angle, lock adjustment mechanism is in the unlocked state at this time, and the first rod piece 5 can move up and down.
As shown in FIG. 11 and 12, the unlock piece 4 can also be and carry in addition to that can be the rod piece that locking piece 1 is pushed to rotate
The drag rope that the locking piece is drawn to be rotated to certain orientation, the unlock piece 4 in the application is an extensive definition, to locking
The effect of part productivity makes its actuator with the lower different directions rotation of elastic component effect belong to the scope of the unlock piece 4,
And it is not limited to the form of bar or traction rope.
Lock adjustment mechanism in the utility model realizes cross bar on montant using the damping of locking piece and montant bar wall
Locking in outer tube of locking and inner tube, using locking piece rotation is pushed to realize unlock, enable cross bar appointing in montant
Meaning height and position is locked and inner tube can be locked in the arbitrary height position of outer tube, realizes cross bar on montant
Step-less adjustment in outer tube of step-less adjustment and inner tube, it is simple in structure, it is easy to operate.
Further, the above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (10)
1. a kind of lock adjustment mechanism, for locking the first rod piece and the second rod piece that are slidably connected, which is characterized in that the lock
Determine regulating mechanism include being rotatably arranged on first rod piece and the locking piece with keyed end, for providing the locking piece
It rotates and the keyed end is made to have towards the elastic component of elastic force needed for the second rod piece movement tendency and for driving
The unlock piece that the locking piece rotates and the keyed end is made to be moved far from second rod piece, wherein, the keyed end direction
The end face of second rod piece be inclined-plane, when the lock adjustment mechanism is in the lock state, the keyed end it is described tiltedly
Face is resisted against on second rod piece and forms pressure angle between second rod piece；When the lock adjustment mechanism unlocks
When, the inclined-plane is detached from second rod piece.
2. lock adjustment mechanism according to claim 1, which is characterized in that the inclined-plane of the keyed end and limitation institute
The angle stated between the direction that the first rod piece is slided with respect to the second rod piece is acute angle.
3. lock adjustment mechanism according to claim 1, which is characterized in that the locking piece includes the first locking plate and the
Two locking plates, second rod piece have the first direction and the second direction opposite with first direction along itself extending direction,
When the lock adjustment mechanism is in the lock state, between the keyed end inclined-plane and the first direction of first locking plate
Angle it is at an acute angle, the angle between the keyed end inclined-plane of the second locking plate and the second direction is at an acute angle, when the locking
When regulating mechanism is in the lock state, first locking plate limits first rod piece and is moved to wherein one end of the second rod piece
Dynamic, second locking plate limits first rod piece and is moved to the other end of the second rod piece.
4. lock adjustment mechanism according to claim 3, which is characterized in that the unlock piece pushes first locking plate
It is rotated to second direction and second locking plate is pushed to be rotated to first direction.
5. a kind of chair, including seat, pedal and at least two chair legs, the pedal horizontal are arranged between two chair legs,
It is characterized in that, the lock adjustment mechanism being provided at both ends with as described in any in claim 1-4 of the pedal, the locking
Part, elastic component and unlock piece are arranged at pedal, and the keyed end inclined-plane of the locking piece is contacted with chair leg outer wall.
6. chair according to claim 5, which is characterized in that rotating handles, the rotation handle are additionally provided on the pedal
Hand includes the Handheld Division being arranged on outside the pedal and the auxiliary section being fixed on the Handheld Division, setting on the auxiliary section
The first groove and the second groove are equipped with, two unlock pieces are horizontally set on auxiliary section both sides, when the lock adjustment mechanism is in
During lock-out state, two unlock pieces are corresponding respectively to be coordinated with first groove and the second groove；When rotating the Handheld Division,
The unlock piece, which corresponds to, to be detached from first groove and the second groove and is displaced outwardly, and then push the keyed end inclined-plane of locking piece
It is detached from leg.
7. chair according to claim 5, which is characterized in that be additionally provided with and extended to outside the pedal on the unlock piece
Shifting part, the shifting part can to close to corresponding chair leg direction move, and then the unlock piece push locking piece lock
Fixed end inclined-plane is detached from leg.
8. chair according to claim 5, which is characterized in that position limiting structure, the lock are provided on leg outer wall
The keyed end for determining part is arranged in the position limiting structure, and the position limiting structure includes concave panel, limiting slot or double positive stop strips and forms
Limit channels.
9. a kind of cart, including car body, the handle of wheel and setting on the car body, which is characterized in that the handle includes outer tube
With the inner tube for being at least partially disposed in outer tube, the interior setting of said inner tube any locking just like in claim 1-4
Regulating mechanism, the locking piece, elastic component and unlock piece are arranged in said inner tube, and the keyed end of the locking piece is from described
Inner tube is stretched out, and the keyed end inclined-plane is contacted with the inner wall of outer tube.
10. cart according to claim 9, which is characterized in that the quantity of the outer tube is two and is symmetricly set on vehicle
Body both sides, said inner tube are U-tube, the unlock piece be traction rope or push rod, the one end of the unlock piece far from locking piece
Extend to the outside of outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721651905.0U CN207565671U (en) | 2017-12-01 | 2017-12-01 | A kind of lock adjustment mechanism and with its chair and cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721651905.0U CN207565671U (en) | 2017-12-01 | 2017-12-01 | A kind of lock adjustment mechanism and with its chair and cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207565671U true CN207565671U (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721651905.0U Active CN207565671U (en) | 2017-12-01 | 2017-12-01 | A kind of lock adjustment mechanism and with its chair and cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207565671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109123977A (en) * | 2018-10-22 | 2019-01-04 | 泉创商贸（上海）有限公司 | A kind of Multifunction expanding pull rod |
-
2017
- 2017-12-01 CN CN201721651905.0U patent/CN207565671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109123977A (en) * | 2018-10-22 | 2019-01-04 | 泉创商贸（上海）有限公司 | A kind of Multifunction expanding pull rod |
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