CN206234588U - Concentric expansion link - Google Patents
Concentric expansion link Download PDFInfo
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- CN206234588U CN206234588U CN201620891836.XU CN201620891836U CN206234588U CN 206234588 U CN206234588 U CN 206234588U CN 201620891836 U CN201620891836 U CN 201620891836U CN 206234588 U CN206234588 U CN 206234588U
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- rod
- locking plate
- location division
- neighboring
- expansion link
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Abstract
A kind of concentric expansion link,Its body of rod for including at least two section inner hollows,A body of rod among the two neighboring body of rod is sheathed within another body of rod and can be moved along the length direction of the body of rod,It is characterized in that,Anti-slip cover and only locking plate are respectively equipped between the two neighboring body of rod,The Anti-slip cover be sheathed among the two neighboring body of rod on the inwall of the outer body of rod in relative outside,The only clip portion be sheathed among the two neighboring body of rod on the outer wall of the interior body of rod of relative inner side,The free end of the only locking plate is extended to outside the end of the interior body of rod,Co-axial catapult is provided with the only inwall of the free end of locking plate,The catapult and interior bar body interference engagement,The catapult makes the interior body of rod among the two neighboring body of rod form interference engagement with outer bar body outwardly against the interior body of rod,So as to realize the locking between the two neighboring body of rod,So that the body of rod only can be stopped at flexible optional position when expansion link is flexible with one heart.
Description
【Technical field】
The utility model is related to self-shooting bar, more particularly to a kind of concentric expansion link for being conveniently retractable to random length.
【Background technology】
Self-shooting bar can very easily be autodyned, and be held in both hands by the heat of many consumers of in the market, by device for shooting during auto heterodyne
On the clamp head of self-shooting bar front end, bar can stretch elongation material, overcome many limitations during auto heterodyne, make consumer more
The enjoyment that good experience is autodyned.For convenience of receiving, the shank portion of existing self-shooting bar is usually disposed as contractile form, and
Existing Telescopic rod structure is complicated, and the visible various connection members from terms of its appearance, such as connecting hole, location hole etc, U.S.
The property seen is inadequate.
【Utility model content】
The utility model aims to solve the problem that above mentioned problem, and provides one kind and be conveniently retractable to random length, and good appearance, ties
The simple expansion link with one heart of structure.
To achieve the above object, the utility model provides a kind of concentric expansion link, and it includes at least two section inner hollows
The body of rod, a body of rod among the two neighboring body of rod is sheathed within another body of rod and can be moved along the length direction of the body of rod,
Characterized in that, being respectively equipped with Anti-slip cover and only locking plate between the two neighboring body of rod, the Anti-slip cover is sheathed on two neighboring
Among the body of rod on the inwall of the outer body of rod in relative outside, it is described only clip portion be sheathed among the two neighboring body of rod
On the outer wall of the interior body of rod of relative inner side, the only free end of locking plate is extended to outside the end of the interior body of rod, in institute
The inwall for stating the only free end of locking plate is provided with co-axial catapult, the catapult and interior bar body interference engagement, the catapult to
The body of rod in outer extruding and the interior body of rod among the two neighboring body of rod is formed interference engagement with outer bar body, it is two neighboring so as to realize
Locking between the body of rod so that the body of rod only can be stopped at flexible optional position when concentric expansion link stretches.
Among the two neighboring body of rod annular is provided with the free end inwall of the interior body of rod of relative inner side the
One groove, the catapult is embedded in first groove.
The first location division is provided with the inwall of the outer body of rod among the two neighboring body of rod, on the outer wall of the Anti-slip cover
Be provided with the second location division matched with first location division, second location division be mutually embedded with first location division and
So that the outer body of rod is relatively fixed with the Anti-slip cover.
The 3rd location division is provided with the outer wall of the interior body of rod among the two neighboring body of rod, is set on the inwall of stopped locking plate
There is the 4th location division matched with the 3rd location division, the 4th location division is mutually embedded and makes with the 3rd location division
The interior body of rod is obtained to be relatively fixed with the only locking plate.
The second groove is provided with the inwall of the outer body of rod among the two neighboring body of rod, second groove forms described
Two location divisions, are provided with the first projection that can be snapped in second groove, first projection on the outer wall of the Anti-slip cover
Form second location division.
Functional hole is provided with the outer wall of the Anti-slip cover, the body of rod outer wall that the functional hole makes to be located inside functional hole has
It is flexible and be easy to the crimp inside and outside, first projection is provided with the body of rod outer wall inside functional hole.
First projection is wedge shaped, and the height of its external wall of two ends highlight bar is different, its projecting height one end higher
Towards the functional hole, the relatively low one end of its projecting height deviates from the functional hole.
Location hole is provided with the inwall of the interior body of rod among the two neighboring body of rod, the location hole is located at the interior body of rod
Close end, the location hole forms the 3rd location division, and being provided with the only inwall of locking plate can snap in the location hole
The second projection, second projection forms the 4th location division.
One or more wedge-shaped parts for protruding from its outer wall surface, the wedge-shaped part are provided with the only outer wall of locking plate
Direction stop the end of locking plate free end and protrude from the outer wall surface of only locking plate, the wedge-shaped part away from only locking plate free end
End is concordant with the outer wall of only locking plate.
One or more the 3rd grooves, the 3rd groove and the wedge-shaped part are provided with the only inwall of locking plate
Position is corresponding.
Favorable attributes of the present utility model are that it efficiently solves above mentioned problem.The utility model and prior art phase
Than the utility model has the following advantages that：Concentric expansion link of the present utility model can multi-stage expansion, and can in telescopic process
Optional position is only stopped at, so that convenient elongation is to required length, and is easy to shorten storage.Additionally, of the present utility model concentric
Telescopic rod structure design is ingenious, and it causes that shank portion can realize non-porous design, so as to ensure the complete appearance of the body of rod, compares
In the expansion link for being provided with several circular holes, concentric expansion link of the present utility model is more attractive.Concentric expansion link of the present utility model
With simple structure, it is easy to use the features such as, with very strong practicality, preferably widely popularize.
【Brief description of the drawings】
Fig. 1 is overall structure sectional view of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the structural decomposition diagram of concentric expansion link of the present utility model.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Fig. 5 is the assembling decomposing schematic representation of some body of rod in concentric expansion link.
Fig. 6 is the schematic diagram of only locking plate.
Fig. 7 is the internal structure schematic diagram of only locking plate.
Fig. 8 is the side structure schematic diagram of only locking plate.
Fig. 9 is the structural representation of Anti-slip cover.
Figure 10 is another viewing angle constructions schematic diagram of Anti-slip cover.
Figure 11 is the sectional arrangement drawing of some body of rod of concentric expansion link.
The body of rod 1, the outer body of rod 11, the first location division 111, the second groove 112, the interior body of rod 12, the 3rd location division 121, positioning
Hole 122, Anti-slip cover 2, the second location division 21, functional hole 22, the first projection 23, only annular projection 24, locking plate 3, free end 31, the
One groove 32, only the 4th location division 33, locking plate unit 34, the second projection 35, wedge-shaped part 36, the 3rd groove 37, catapult 4
【Specific embodiment】
The following example is explained further and supplements to of the present utility model, does not constitute any limit to the utility model
System.
As shown in the figure of Fig. 1~11, concentric expansion link of the present utility model is mainly characterized by, and it can be along the length of the body of rod 1
Degree is flexible, and the body of rod 1 can be made only to be stopped at flexible optional position during stretching and shortening, so as to conveniently extend to required length
Degree is used, and is easy to shorten storage, and also ensures concentric expansion link from appearance without any groove or through hole, guarantor
The integrality of concentric expansion link outward appearance is held, the aesthetic property of concentric expansion link is improved.
Specifically, as shown in Figure 1, Figure 3, the concentric expansion link includes at least two pole bodies 1.It is attached shown in the present embodiment
In Fig. 1, the concentric expansion link includes six pole bodies 1.The shape of the more piece body of rod 1 is consistent, but size reduces step by step.It is described
The body of rod 1 is hollow lever 1, so that a body of rod 1 among the two neighboring body of rod 1 is sheathed within another body of rod 1, and
Can be moved along the length direction of the body of rod 1, so as to realize stretching and shrink.The cross section of the body of rod 1 can be in a variety of shapes, such as circle
Angle quadrangle, polygon, square etc., mutually rotate, the present embodiment when being used to avoid concentric expansion link from stretching between the body of rod 1
In, the body of rod 1 is hollow square bar, and the body of rod 1 cannot be circumferentially rotated.
To make concentric expansion link only can be stopped at flexible any position, as shown in Figure 2, Figure 3, Figure 4, in two adjacent sections bar
Anti-slip cover 2, only locking plate 3 and catapult 4 are respectively equipped between body 1.It is because concentric expansion link has the more piece body of rod 1 and two neighboring
Internal structure between the body of rod 1 is consistent, and for ease of description, the present embodiment is with the knot between the two neighboring body of rod 1 in certain one-level
Be described as a example by structure, and by the two neighboring body of rod 1 among the body of rod 1 positioned at opposite exterior lateral sides be referred to as the outer body of rod 11, general
The body of rod 1 positioned at relative inner among the two neighboring body of rod 1 is referred to as the interior body of rod 12.It should be noted that, the interior body of rod 12
It is the relative interior body of rod 12 and the outer body of rod 11 with the outer body of rod 11, it is directed to for the two neighboring body of rod 1 in certain one-level, it is just whole
For individual concentric expansion link, the interior body of rod 12 of certain one-level is also likely to be simultaneously the outer body of rod 11 of next stage, the outer body of rod of certain one-level
11 is also likely to be simultaneously the interior body of rod 12 of upper level, therefore, the interior body of rod 12 and the outer body of rod 11 described in the present embodiment only refer to
Show the inside and outside position relationship that comparatively the two neighboring body of rod 1 in certain one-level has.
In the present embodiment, as shown in figure 1, the Anti-slip cover 2 is sheathed on the interior of the outer body of rod 11 among the two neighboring body of rod 1
On wall, the two neighboring body of rod 1 is deviate from when it is used to prevent concentric expansion link flexible, the two neighboring body of rod 1 is not separated.
As shown in figure 3, the shape of the Anti-slip cover 2 matches with the shape of the body of rod 1, it is described anti-in the present embodiment
Sliding sleeve 2 is square tubular body, and its corner forms arc transition.The Anti-slip cover 2 is sheathed on outer among the two neighboring body of rod 1
On the inwall of the body of rod 11, in the present embodiment, the end of its connection end being connected with the interior body of rod 12 for being located at the outer body of rod 11.Other
In embodiment, the Anti-slip cover 2 can also be located at the close end of the connection end being connected with the interior body of rod 12 of the outer body of rod 11.To make to prevent
Sliding sleeve 2 is relatively fixed with the outer body of rod 11, and the first location division is provided with the inwall of the outer body of rod 11 among the two neighboring body of rod 1
111, the second location division 21 matched with first location division 111 is provided with the outer wall of the Anti-slip cover 2.
In certain embodiments, one or several are provided with the inwall of the outer body of rod 11 among the two neighboring body of rod 1
Groove, is provided with several projections with the groove match on the outer wall of the Anti-slip cover 2, and the groove forms first to be determined
Position portion 111, the projection forms the second location division 21 so that the second location division 21 of Anti-slip cover 2 can be embedded in it is two neighboring
In first location division 111 of the outer body of rod 11 among the body of rod 1, Anti-slip cover 2 is set to be relatively fixed with the outer body of rod 11.First positioning
Portion 111 both can be multiple spaced grooves, may also be the annular groove being formed on the inwall of the outer body of rod 11.Correspond to therewith
, second location division 21 both can be multiple spaced projections, may also be the annular being formed on the outer wall of Anti-slip cover 2 and dashes forward
Play 24.Due to being relatively fixed one by the first location division 111 and the second location division 21 between the outer body of rod 11 and Anti-slip cover 2
Rise, therefore from terms of the appearance of the body of rod 1, the appearance of the whole body of rod 1 is uniform and tie point, so as to the outward appearance of concentric expansion link can be kept
Integrality.
In certain embodiments, one or several are provided with the inwall of the outer body of rod 11 among the two neighboring body of rod 1
Projection, is provided with several grooves or location hole 122 with the protrusions on the outer wall of the Anti-slip cover 2, described prominent
Rise and form the first location division 111, the groove or location hole 122 form the second location division 21, so that the two neighboring body of rod 1
Among the first location division 111 of the outer body of rod 11 can be embedded in the second location division 21 of Anti-slip cover 2, make Anti-slip cover 2 with the outer body of rod
11 are relatively fixed.First location division 111 both can be multiple spaced projections, may also be and is formed at the inwall of the outer body of rod 11
On annular projection 24.Corresponding, second location division 21 both can be multiple spaced grooves or location hole
122, may also be the annular groove being formed on the outer wall of Anti-slip cover 2.
In the present embodiment, as shown in Fig. 2 being set on the inwall of the close end of the outer body of rod 11 among the two neighboring body of rod 1
There are two the second relative grooves 112, second groove 112 forms the first location division 111.Second groove 112 can be set
Into various shapes, in the present embodiment, it is square groove.As shown in figure 4, being provided with two phases on the outer wall of the Anti-slip cover 2
To functional hole 22, the functional hole 22 be used to cause the wall body positioned at the inside of functional hole 22 there is elasticity and it is extrudable deform,
So as to be easy to that Anti-slip cover 2 is inserted in the outer body of rod 11.In the present embodiment, the functional hole 22 is U-shaped bar hole.Positioned at work(
The first projection 23 is respectively equipped with the outer wall of the body of rod 1 inside energy hole 22, first projection 23 is used to snap in the inwall of the outer body of rod 11
On the second groove 112 in.First projection 23 forms second location division 21.For ease of installing the Anti-slip cover 2, this
In embodiment, first projection 23 is wedge shaped, and the height that its two ends protrudes the outer wall of the body of rod 1 is different, and its projecting height is higher
One end deviates from the functional hole 22 towards the functional hole 22, the relatively low one end of its projecting height, so as to using lozenges
Guide effect and Anti-slip cover 2 is inserted in the end of the outer body of rod 11.Further, to be more conducive to for Anti-slip cover 2 to be inserted in the outer body of rod 11
Interior, one end end away from functional hole 22 of the Anti-slip cover 2 is configured to wedge-type shape, so that beneficial to leading using lozenges
Anti-slip cover 2 is inserted in the end of the outer body of rod 11 to effect.Additionally, in the other end relative with tapered end of the Anti-slip cover 2
End is provided with annular projection 24, and the annular projection 24 forms step with the outer wall of Anti-slip cover 2, so as to the outer body of rod can be abutted
11 end a so that circle is can watch from terms of the appearance of concentric expansion link has the annulus of decorative effect, it is same beneficial to enhancing
The globality and aesthetic property of heart expansion link.
As shown in Figure 3, Figure 4, the only locking plate 3 is sheathed on the outer wall of the interior body of rod 12 among the two neighboring body of rod 1, its
Shape matches with the shape of the interior body of rod 12.In the present embodiment, the only locking plate 3 is positioned at the interior body of rod 12 and the outer body of rod
The end of 11 connection ends being connected, and only the part of locking plate 3 is sheathed on outside the interior body of rod 12, its free end 31 extends to the interior body of rod 12
End outside.The first groove 32 of annular is provided with the only inwall of the free end 31 of locking plate 3, in first groove 32
Inside it is embedded with catapult 4.The catapult 4 is coaxial with the interior body of rod 12.The catapult 4 and the interference engagement of the interior body of rod 12, so that
So that the catapult 4 can cause the interior body of rod 12 and the outer body of rod among the two neighboring body of rod 1 outwardly against the interior body of rod 12
11 form interference engagements, strengthen in compactness between the body of rod 12 and the outer body of rod 11, so as to realize between the two neighboring body of rod 1
Locking so that when concentric expansion link stretches, the body of rod 1 only can be stopped at flexible optional position.
When the two neighboring body of rod 1 shrinks together, as shown in figure 11, the only locking plate 3 is located at the Anti-slip cover 2 should
Two relative two ends of the body of rod 1 of level.To make only locking plate 3 be relatively fixed with the interior body of rod 12, the body of rod 1 is set not taken off in pull
Go out, the 3rd location division 121 is provided with the outer wall of the interior body of rod 12, be provided with and described the on the only inwall of locking plate 3
The 4th location division 33 that three location divisions 121 match.
In certain embodiments, one or several are provided with the outer wall of the interior body of rod 12 among the two neighboring body of rod 1
Groove, is provided with several projections with the groove match on the only outer wall of locking plate 3, and the groove forms the 3rd to be determined
Position portion 121, the projection forms the 4th location division 33 so that only the 4th location division 33 of locking plate 3 can be embedded in it is two neighboring
In 3rd location division 121 of the interior body of rod 12 among the body of rod 1, only locking plate 3 is set to be relatively fixed with the interior body of rod 12.3rd positioning
Portion 121 can both be formed at multiple spaced groove or location hole 122 on the outer wall of interior bar body 12, may also be in being formed at
Annular groove on the outer wall of the body of rod 12.Corresponding, the 4th location division 33 can be both formed on the only inwall of locking plate 3
Multiple spaced projections, may also be the annular projection 24 being formed on the only inwall of locking plate 3.
In certain embodiments, one or several are provided with the outer wall of the interior body of rod 12 among the two neighboring body of rod 1
Projection, is provided with several grooves or location hole 122 with the protrusions on the only inwall of locking plate 3, described prominent
Rise and form the 3rd location division 121, the groove or location hole 122 form the 4th location division 33, so that the two neighboring body of rod 1
Among the 3rd location division 121 of the interior body of rod 12 can be embedded in the 4th location division 33 of only locking plate 3, make only locking plate 3 and the interior body of rod
12 are relatively fixed.3rd location division 121 can both be formed at the multiple spaced projection on the outer wall of interior bar body 12,
The annular projection 24 on the outer wall of interior bar body 12 can be formed at.Corresponding, the 4th location division 33 can both be formed at
Only the multiple spaced groove or location hole 122 on the outer wall of locking plate 3, may also be the annular being formed on the only outer wall of locking plate 3
Groove.
In the present embodiment, as shown in Figure 2, Figure 4 shows, the outer wall of the close end of the interior body of rod 12 among the two neighboring body of rod 1
Two relative location holes 122 are provided with, the location hole 122 forms the 3rd location division 121.In the present embodiment, the location hole
122 is square opening.As shown in figure 4, the only locking plate 3 is made up of the U-shaped only locking plate unit 34 of two panels, two panels stops locking plate unit 34
Can be to the only locking plate 3 of synthesis square tube type.As shown in Fig. 2, Fig. 5, second is respectively equipped with the only inwall of locking plate unit 34
Projection 35, it forms the 4th location division 33 for stopping locking plate 3.It is the locking in strengthening between the body of rod 12 and the outer body of rod 11, described
Only the outer wall of locking plate 3 is provided with the wedge-shaped part 36 that one or more protrude from its outer wall surface, on the only inwall of locking plate 3
One or more threeth grooves 37 corresponding with the position of the wedge-shaped part 36 are provided with, so that the only wedge on the outer wall of locking plate 3
Be inserted in for the outer body of rod when having certain elasticity and being easily installed be equipped with the only outer body of rod of locking plate 3 by shape portion 36, and by only locking
Wedge-shaped part 36 on the outer wall of piece 3 strengthens the interference engagement between the interior body of rod 12 and the outer body of rod 11.Specifically, the wedge-shaped part 36
The outer wall surface of only locking plate 3 is protruded from towards the end of the only free end 31 of locking plate 3, the wedge-shaped part 36 is free away from only locking plate 3
The end at end 31 is concordant with the outer wall of only locking plate 3, so that the wedge-shaped part 36 protruded from the only outer wall of locking plate 3 is not interfered with only
The installation of locking plate 3, and can also strengthen interference engagement only between locking plate 3 and the outer body of rod 11.
Take this, just form the stretching structure between the two neighboring body of rod 1.The outer body of rod between the two neighboring body of rod 1
It is assembled together by the first location division 111 and the second location division 21 between 11 and Anti-slip cover 2, Anti-slip cover 2 causes flexible with one heart
The body of rod 1 does not fall out when bar is stretched；The interior body of rod 12 between the two neighboring body of rod 1 and only locking plate 3 by the 3rd location division 121 and
4th location division 33 is assembled together so that only locking plate 3 can be moved with the interior body of rod 12, and causes only locking plate 3 and interior bar
Body 12 will not drop out when moving together.During installation, first only the end of the interior body of rod 12 will be inserted in by locking plate 3, make the 3rd location division 121
In the correspondence of the 4th location division 33, the interior body of rod 12 that then will be equipped with only locking plate 3 is inserted in the outer body of rod 11, then from the outer body of rod 11
Anti-slip cover 2 is inserted in end, make the second location division 21 of Anti-slip cover 2 and the outer body of rod 11 the first location division 111 it is corresponding on so that
The two neighboring body of rod 1 is obtained to be closely joined together.Because the inwall for stopping the free end 31 of locking plate 3 is provided with catapult 4, catapult 4 to
Outer extruding stops locking plate 3 and causes only locking plate 3 and the interference engagement of the outer body of rod 11, so that being locked between the interior body of rod 12 and the outer body of rod 11
Tightly, can be stretched pull under external force, the body of rod 1 will not again mutually deviate from, and the body of rod 1 can be made to lose outer masterpiece
Used time stops and is stopped at optional position, so as to realize the Telescopic of the body of rod 1.Further, since the body of rod 1 is in square tube type, between the body of rod 1 not
Can mutually rotate so that with one heart expansion link stretch it is more stable.
Although being disclosed to the utility model by above example, scope of the present utility model is not limited to
In this, under conditions of conceiving without departing from the utility model, it is similar that each component of the above can be understood with art personnel
Or equivalent element is replaced.
Claims (10)
1. a kind of concentric expansion link, its body of rod (1) for including at least two section inner hollows, among the two neighboring body of rod (1) one
The individual body of rod (1) is sheathed within another body of rod (1) and can be moved along the length direction of the body of rod (1), it is characterised in that adjacent two
Anti-slip cover (2) and only locking plate (3) are respectively equipped between the individual body of rod (1), the Anti-slip cover (2) is sheathed on the two neighboring body of rod (1)
Among on the inwall of the outer body of rod (11) in relative outside, it is described only locking plate (3) be partly sheathed on the two neighboring body of rod
(1) among on the outer wall of the interior body of rod (12) of relative inner side, it is described only locking plate (3) free end (31) extend in
Outside the end of the body of rod (12), co-axial catapult (4), institute are provided with the only inwall of the free end (31) of locking plate (3)
Catapult (4) and the interior body of rod (12) interference engagement are stated, the catapult (4) makes the two neighboring body of rod (1) outwardly against the interior body of rod (12)
Among the interior body of rod (12) and the outer body of rod (11) formed interference engagement, so as to realize the locking between the two neighboring body of rod (1), make
Obtaining the body of rod (1) when concentric expansion link stretches only can be stopped at flexible optional position.
2. expansion link with one heart as claimed in claim 1, it is characterised in that among the two neighboring body of rod (1) positioned at relative
Free end (31) inwall of the interior body of rod (12) of inner side be provided with first groove (32) of annular, the catapult (4) is embedded at
In first groove (32).
3. expansion link with one heart as claimed in claim 1, it is characterised in that the outer body of rod among the two neighboring body of rod (1)
(11) inwall is provided with the first location division (111), is provided with the outer wall of the Anti-slip cover (2) and first location division
(111) the second location division (21) for matching, second location division (21) is mutually embedded and makes with first location division (111)
The outer body of rod (11) is obtained to be relatively fixed with the Anti-slip cover (2).
4. expansion link with one heart as claimed in claim 1, it is characterised in that the interior body of rod among the two neighboring body of rod (1)
(12) outer wall is provided with the 3rd location division (121), is provided with the inwall of stopped locking plate (3) and the 3rd location division
(121) the 4th location division (33) for matching, the 4th location division (33) is mutually embedded and makes with the 3rd location division (121)
The interior body of rod (12) is obtained to be relatively fixed with the only locking plate (3).
5. expansion link with one heart as claimed in claim 3, it is characterised in that the outer body of rod among the two neighboring body of rod (1)
(11) inwall is provided with the second groove (112), and second groove (112) forms second location division (21), described
The outer wall of Anti-slip cover (2) is provided with the first projection (23) that can be snapped in second groove (112), first projection (23)
Form second location division (21).
6. expansion link with one heart as claimed in claim 5, it is characterised in that be provided with function on the outer wall of the Anti-slip cover (2)
Hole (22), the functional hole (22) makes the wall body for being located at functional hole (22) inside have elasticity and be easy to the extruding inside and outside and become
Shape, first projection (23) is being provided with the internal wall body outer wall of functional hole (22).
7. expansion link with one heart as claimed in claim 6, it is characterised in that first projection (23) is wedge shaped, its two distal process
The height for going out the body of rod (1) outer wall is different, and its projecting height one end higher is towards the functional hole (22), and its projecting height is relatively low
One end deviate from the functional hole (22).
8. expansion link with one heart as claimed in claim 4, it is characterised in that the interior body of rod among the two neighboring body of rod (1)
(12) inwall is provided with location hole (122), the location hole (122) positioned at the interior body of rod (12) close end, the positioning
Hole (122) forms the 3rd location division (121), and being provided with the only inwall of locking plate (3) can snap in the location hole
(122) the second projection (35), second projection (35) forms the 4th location division (33).
9. expansion link with one heart as claimed in claim 8, it is characterised in that be provided with the only outer wall of locking plate (3)
Or multiple protrudes from the wedge-shaped part (36) of its outer wall surface, the direction of the wedge-shaped part (36) is stopped locking plate (3) free end (31)
End protrudes from the outer wall surface of only locking plate (3), the end away from only locking plate (3) free end (31) of the wedge-shaped part (36) with
Only the outer wall of locking plate (3) is concordant, the outer body of rod (11) in the wedge-shaped part (36) and the two neighboring body of rod (1) and interior
The body of rod (12) interference engagement and make to lock between the two neighboring body of rod so that the body of rod (1) can be only when concentric expansion link is flexible
It is stopped at flexible optional position.
10. expansion link with one heart as claimed in claim 9, it is characterised in that be provided with the only inwall of locking plate (3)
Individual or multiple 3rd grooves (37), the 3rd groove (37) is corresponding with the position of the wedge-shaped part (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891836.XU CN206234588U (en) | 2016-08-16 | 2016-08-16 | Concentric expansion link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891836.XU CN206234588U (en) | 2016-08-16 | 2016-08-16 | Concentric expansion link |
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| Publication Number | Publication Date |
|---|---|
| CN206234588U true CN206234588U (en) | 2017-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620891836.XU Active CN206234588U (en) | 2016-08-16 | 2016-08-16 | Concentric expansion link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237305A (en) * | 2020-03-21 | 2020-06-05 | 深圳市理德铭科技股份有限公司 | Telescopic pull rod capable of bearing |
| CN112145520A (en) * | 2020-10-19 | 2020-12-29 | 天津博泰天宇科技发展有限公司 | One-key lock structure for tripod |
| WO2023066172A1 (en) * | 2021-10-22 | 2023-04-27 | 深圳欧森隆科创有限公司 | Stretching rod and support |
-
2016
- 2016-08-16 CN CN201620891836.XU patent/CN206234588U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237305A (en) * | 2020-03-21 | 2020-06-05 | 深圳市理德铭科技股份有限公司 | Telescopic pull rod capable of bearing |
| CN112145520A (en) * | 2020-10-19 | 2020-12-29 | 天津博泰天宇科技发展有限公司 | One-key lock structure for tripod |
| CN112145520B (en) * | 2020-10-19 | 2022-06-17 | 天津博泰天宇科技发展有限公司 | A key lock structure for tripod |
| WO2023066172A1 (en) * | 2021-10-22 | 2023-04-27 | 深圳欧森隆科创有限公司 | Stretching rod and support |
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