CN201589047U - Locking device for tubular leg of tripod - Google Patents
Locking device for tubular leg of tripod Download PDFInfo
- Publication number
- CN201589047U CN201589047U CN2010200002447U CN201020000244U CN201589047U CN 201589047 U CN201589047 U CN 201589047U CN 2010200002447 U CN2010200002447 U CN 2010200002447U CN 201020000244 U CN201020000244 U CN 201020000244U CN 201589047 U CN201589047 U CN 201589047U
- Authority
- CN
- China
- Prior art keywords
- clamp ring
- threaded sleeve
- locking
- locking device
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Accessories Of Cameras (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Clamps And Clips (AREA)
Abstract
The utility model discloses a locking device for tubular leg of tripod, which inlcudes a threaded sleeve one end of which is connected to an upper tube, wherein an accomodating cavity with open lower end is formed between the lower tube and the inner wall of the other end of the threaded sleeve, at least one clamp ring sleeved on the lower tube is provided in the accomodating cavity, an opening is arranged on the locking ring, a locking knob is socketed at the external side of the threaded sleeve, a closing end for preveting the locking ring from slipping from the accomodating cavity is provided at the lower end of the locking knob. The utility model has beneficial effects that a plurality of clamp rings with opening are sllleved on the lower tube of the tubular leg of tripod, the locking and releasing operations of the upper and lower tubes of the tubular leg is achieved by rotating the locking knob, the locking device has simple structure, easy operation, and good locking effect.
Description
Technical field
The utility model relates to the photographic goods technical field, especially a kind of locking device of photographic tripod pin pipe.
Background technique
At present, the photographic tripod of on market, selling, the locking of the top tube and down tube of every pin pipe is that the cooperation by screwed pipe joint and threaded sleeve realizes.From practical effect, though this structural type is simple, but the locking between the tripod pin pipe is also insecure, bearing capacity is not enough, the lighter can't normally photograph the photographer, weight person falls down camera and tripod owing to tripod is subjected to force unbalance, breaks camera, brings a lot of troubles to the user.
The model utility content
The purpose of this utility model is to solve the problems of the prior art, and a kind of firm tripod pin pipe locking device of locking is provided.
The technical solution of the utility model is: a kind of tripod pin pipe locking device, it includes the threaded sleeve that an end links to each other with last pipe, form the open holding cavity in lower end between the inwall of this threaded sleeve the other end and the following pipe, be provided with at least one in this holding cavity and be set in down clamp ring on the pipe, described clamp ring is provided with opening, described threaded sleeve outside cover is connected with a locking knob, and this locking knob lower end is provided with a closing in that prevents described clamp ring slippage from holding cavity.
Preferably, be provided with a closed type clamp ring that is set in down on the pipe below the described clamp ring.
Described clamp ring can be three, three clamp rings are provided with the chamfering that cooperatively interacts in its adjacent end, be positioned at uppermost clamp ring upper end and be provided with the outer chamfering that matches with inclined-plane, holding cavity top, be positioned at nethermost clamp ring lower end and be provided with the outer chamfering that matches with closed type clamp ring upper end chamfering.
Preferably, described locking knob and threaded sleeve are for being threaded.
The middle part is provided with lug boss in the holding cavity of described threaded sleeve, and this lug boss inwall is provided with screw thread.
The beneficial effects of the utility model are: are arranged with the clamp ring of a plurality of band openings on the following pipe of tripod pin pipe, reach locking or loosen foot rest and manage operation up and down by the rotational lock knob, and simple in structure, easy and simple to handle, and it is effective to lock.
Description of drawings
Fig. 1 is a partial sectional view of the present utility model;
Fig. 2 is an exploded view of the present utility model;
Partial sectional view when Fig. 3 is in locking state for the pin pipe;
Fig. 4 is the partial enlarged drawing of Fig. 3.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Tripod constitutes by a center rod member with three pin pipes that the center rod member articulates, every pin pipe comprises that pipe and cover insert in the following pipe in the pipe, as shown in Figure 1, a kind of tripod pin of the utility model pipe locking device, it includes the threaded sleeve 3 that an end links to each other with last pipe 1, the inwall of these threaded sleeve 3 the other ends and the holding cavity 23 that the formation lower end is opened between the pipe 2 down, be provided with three clamp rings 4 that are set in down on the pipe 2 in this holding cavity 23,5,6 and closed type clamp rings 7 that are set in down on the pipe 2, closed type clamp ring 7 is positioned at three clamp rings 4,5,6 below, as shown in Figure 2, three clamp rings 4,5, be equipped with opening 41 on 6,51,61, described threaded sleeve 3 outside screw are connected with a locking knob 8, as shown in Figure 1, these locking knob 8 lower ends are provided with one and prevent three clamp rings 4,5,6 and the closing in 81 of closed type clamp ring 7 slippage from holding cavity 23.
Three clamp rings 4,5,6 are provided with the chamfering that cooperatively interacts in its adjacent end, be positioned at uppermost clamp ring 4 upper ends and be provided with the outer chamfering 42 that matches with inclined-plane, holding cavity 23 top, its lower end is provided with the outer chamfering 43 that matches with chamfering 52 in middle clamp ring 5 upper ends, be positioned at nethermost clamp ring 6 upper ends and be provided with the outer chamfering 62 that matches with middle clamp ring 5 lower end chamferings 53, its lower end is provided with the outer chamfering 63 that matches with chamfering 71 in closed type clamp ring 7 upper ends.
Shown in Fig. 3,4, the middle part is provided with lug boss 231 in the holding cavity 23 of described threaded sleeve 3, these lug boss 231 inwalls are provided with screw thread 232, She Ji purpose is like this: after clamp ring 4,6 is subjected to downforce, clamp ring 5 produces the outwards power of support, and the outer surface of clamp ring 5 this moment is subjected to the roof pressure power of described lug boss 231 screw threads 232, and then roof pressure locking Fig. 4,6 makes it can overlap grip the foot pipe 2 more tightly.
When making progress continuous rotational lock knob, closed type clamp ring and three clamp rings of establishing opening that the closing in promotion of locking knob bottom is positioned at its top move up, when locking knob can't move up again, clamp ring and the closed type clamp ring that be located in the holding cavity this moment are pegged graft mutually by chamfering, and clamp ring 4,5,6 is shunk and will be managed locking and positioning securely down.
Being the utility model preferred embodiment only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should belong to technology category of the present utility model.
Claims (5)
1. tripod pin pipe locking device, it is characterized in that: it includes the threaded sleeve that an end links to each other with last pipe, form the open holding cavity in lower end between the inwall of this threaded sleeve the other end and the following pipe, be provided with at least one in this holding cavity and be set in down clamp ring on the pipe, described clamp ring is provided with opening, described threaded sleeve outside cover is connected with a locking knob, and this locking knob lower end is provided with a closing in that prevents described clamp ring slippage from holding cavity.
2. tripod pin pipe locking device according to claim 1 is characterized in that: described clamp ring below is provided with a closed type clamp ring that is set in down on the pipe.
3. tripod pin pipe locking device according to claim 2, it is characterized in that: described clamp ring can be three, three clamp rings are provided with the chamfering that cooperatively interacts in its adjacent end, be positioned at uppermost clamp ring upper end and be provided with the outer chamfering that matches with inclined-plane, holding cavity top, be positioned at nethermost clamp ring lower end and be provided with the outer chamfering that matches with closed type clamp ring upper end chamfering.
4. tripod pin pipe locking device according to claim 1 is characterized in that: described locking knob and threaded sleeve are for being threaded.
5. tripod pin pipe locking device according to claim 1 is characterized in that: the middle part is provided with lug boss in the holding cavity of described threaded sleeve, and this lug boss inwall is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200002447U CN201589047U (en) | 2010-01-06 | 2010-01-06 | Locking device for tubular leg of tripod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200002447U CN201589047U (en) | 2010-01-06 | 2010-01-06 | Locking device for tubular leg of tripod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589047U true CN201589047U (en) | 2010-09-22 |
Family
ID=42748830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200002447U Expired - Fee Related CN201589047U (en) | 2010-01-06 | 2010-01-06 | Locking device for tubular leg of tripod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201589047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2551532A2 (en) | 2011-07-26 | 2013-01-30 | Ningbo Eimage Studio Equipment Co., Ltd. | Rapid manual tube locking device |
| WO2015062121A1 (en) * | 2013-11-01 | 2015-05-07 | 中山市思锐摄影器材工业有限公司 | Quick-connection anti-loosening device |
-
2010
- 2010-01-06 CN CN2010200002447U patent/CN201589047U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2551532A2 (en) | 2011-07-26 | 2013-01-30 | Ningbo Eimage Studio Equipment Co., Ltd. | Rapid manual tube locking device |
| US8506200B2 (en) | 2011-07-26 | 2013-08-13 | Qi Lu | Rapid locking hand knob construct |
| EP2551532A3 (en) * | 2011-07-26 | 2016-05-11 | Ningbo Eimage Studio Equipment Co., Ltd. | Rapid manual tube locking device |
| WO2015062121A1 (en) * | 2013-11-01 | 2015-05-07 | 中山市思锐摄影器材工业有限公司 | Quick-connection anti-loosening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20130106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |