CN2833309Y

CN2833309Y - Tripod

Info

Publication number: CN2833309Y
Application number: CN 200520045597
Authority: CN
Inventors: 陈庆元
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-10
Filing date: 2005-10-10
Publication date: 2006-11-01
Anticipated expiration: 2015-10-10

Abstract

The utility model discloses a tripod which has the advantage of convenient and safe use and comprises a telescopic supporting leg, wherein the supporting leg comprises at least one section of outer tube of which the upper end is sealed and at least one section of inner tube, and the inner tube can be movably sheathed in the outer tube and is fixed with the outer tube through a locking device. At least one axially arranged convex strip is arranged on the inner wall of the outer tube, and the top end of the inner tube is provided with at least two rotation limiting slices; the circular arc-shaped curving side wall of each rotation limiting slice is corresponding to the outer side wall of the inner tube, and a convex fixing pin is arranged on the inner side wall of each rotation limiting slice. Fixing holes matched with the fixing pin of each rotation limiting slice are arranged on the side wall of the inner tube, and each rotation limiting slice is provided with a top surface. The top surfaces of all the rotation limiting slices are matched to form an isolating surface which is covered on an opening of the top end of the inner tube, and grooves matched with the convex strip on the inner wall of the outer tube are formed among the side walls of the rotation limiting slices.

Description

Tripod

Technical field

The utility model relates to a kind of tripod, particularly telescopic supporting leg in the tripod.

Background technique

Tripod mainly comprises telescopic supporting leg in the prior art, described supporting leg comprises pipe at least one section outer tube and at least one section, interior pipe is enclosed within the outer tube movably, and interior pipe fixes by lockup device and outer tube, when outer tube and interior Guan Douwei cylindrical tube, because interior pipe and outer tube can relatively rotate, when the interior pipe of this structure tripod and outer tube need lock, must bimanualness, a hand will be fixed outer tube, the another hand carries out locking operation, and it is very inconvenient to use; On the other hand because interior pipe and outer tube be hatch frame all, if taking place, the interior pipe of a supporting leg and outer tube lock when malfunctioning, outer tube is downslide rapidly, causes tripod to be tumbled rapidly, uses dangerous.

Summary of the invention

Technical problem to be solved in the utility model is the above-mentioned deficiency that overcomes prior art, a kind of tripod easy to use, safe is provided, pipe and the relatively rotating of outer tube in this tripod both can effectively prevent are managed in taking place and outer tube locks and can also effectively slow down the tipping speed of tripod when malfunctioning.

For solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of tripod, comprise telescopic supporting leg, described supporting leg comprises pipe in the outer tube of at least one section upper end closed and at least one section, interior pipe is enclosed within the outer tube movably, interior pipe fixes by lockup device and outer tube, the inwall of described outer tube is provided with at least one axial arranged raised line, the top of pipe is provided with at least two limit rotors in described, the circular arc crooked sidewall of each limit rotor and the outer side wall of interior pipe adapt, the madial wall of each limit rotor is provided with outstanding fixing pin, the sidewall of interior pipe is provided with the fixed hole that matches with the fixing pin of each limit rotor, each limit rotor is provided with end face, the end face of limited rotor cooperate to form isolation surface and cover in the open-topped of pipe, form the groove that matches with raised line on the outer tube wall between the sidewall of limit rotor.

In the technique scheme, because the inwall of described outer tube is provided with axial arranged raised line, the top of pipe is provided with the limit rotor in described, form the groove that matches with raised line on the outer tube wall between the sidewall of limit rotor, the raised line of outer tube can only slide up and down in the groove between the limit rotor, because limit rotor and interior pipe are relatively-stationary, therefore pipe and outer tube relatively rotates in can effectively preventing, when the interior pipe of this structure tripod and outer tube need lock, only need a hand just can carry out locking operation, use very convenient; In addition because each limit rotor is provided with end face, the end face of limited rotor cooperate to form isolation surface and cover in the open-topped of pipe, thereby interior pipe and outer duct occlusion are isolated, because the existence of isolation surface, pipe is equivalent to form a kind of piston effect when movable in making in outer tube, can produce buffering air pressure and make the slowly motion in outer tube of interior pipe, when the interior pipe that a supporting leg takes place and outer tube lock when malfunctioning, because buffering air pressure outer tube can not glide rapidly, can effectively slow down the tipping speed of tripod, make the equipment on the tripod avoid as much as possible damaging, use safer.

The utility model will be further described below in conjunction with the drawings and specific embodiments.

Description of drawings

Fig. 1 is a kind of embodiment's of the utility model tripod a general structure schematic sectional view.

Fig. 2 is an A-A sectional view among Fig. 1.

Fig. 3 is the structural representation plan view of limit rotor among Fig. 1.

Fig. 4 is the right elevation of limit rotor among Fig. 3.

Fig. 5 is the left view of limit rotor among Fig. 3.

Fig. 6 is the structural representation plan view of snap ring among Fig. 1.

Fig. 7 is the left view of snap ring among Fig. 6.

Fig. 8 is the structural representation plan view of lock sleeve among Fig. 1.

Fig. 9 is the plan view of lock sleeve among Fig. 8.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, a kind of embodiment of the utility model tripod, comprise telescopic supporting leg, described supporting leg comprises at least one section outer tube 1 and at least one section manages 6, interior pipe 6 is enclosed within the outer tube 1 movably, in pipe 6 fix by lockup device and outer tube 1, the inwall of described outer tube 1 is provided with two axially, the raised line 2 of positioned opposite, the top of pipe 6 is provided with two limit rotors 4 in described, the circular arc crooked sidewall of each limit rotor 4 and the outer side wall of interior pipe 6 adapt, the madial wall of each limit rotor 4 is provided with outstanding fixing pin 5, the fixed hole 13 that the sidewall of interior pipe 6 is provided with and each limits the fixing pin 5 of rotor 6 to match, each limit rotor 4 is provided with semicircle end face 3, the semicircle end face 3 of two limit rotors 4 cooperate form isolation surfaces and cover in the open-topped of pipe 6, form two grooves 14 that match with two raised lines 2 on the outer tube wall between the sidewall of two limit rotors 4.In order to make full use of the length of pipe, the height of described fixing pin 5 can be between the inwall of interior pipe 6 and outer wall or in equaling the wall thickness of pipe 6, this fixing pin 5 plays the effect of fixing limit rotor 4 on the one hand, on the other hand because the height of fixing pin 5 does not have the madial wall of outstanding interior pipe 6, telescopic supporting leg generally comprises pipe and outer tube in the multistage, with respect to managing in another root in the pipe 6 in being installed in, interior pipe 6 just becomes the outer tube of upper end closed, the top that is retracted to interior pipe 6 can be freely moved on the top of pipe in another root, therefore can utilize the length of pipe fully.For the locking between pipe 6 in realizing better and the outer tube 1, as Fig. 1, Fig. 2, Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, described lockup device can comprise fixedlys connected with outer tube 1 and has an externally threaded connecting sleeve 7, snap ring 10 in being enclosed within on pipe 6 outer walls and the lock sleeve 8 that has internal thread, the lower end of snap ring 10 is provided with radially-arranged flange 12, the lower end of lock sleeve 8 is provided with the conical surface 11 that matches with the flange 12 of snap ring 10, lock sleeve 8 is threaded with connecting sleeve 7, compare with the lockup device of prior art, because the lower end of snap ring 10 is provided with the flange 12 that matches with the conical surface 11 of lock sleeve 8 lower ends, locking efficient is improved greatly.In order further to improve locking efficient, the lower end of described outer tube 1 can be provided with the conical surface 9 that matches with snap ring 10, when screwing lock sleeve 8, snap ring 10 tightens rapidly down in the effect of conical surface (being conical surface 9, conical surface 11) up and down, not only improved locking efficient, and made locking more firm.

The working principle of the utility model tripod is: when needs are regulated the length of supporting foot, pipe 6 was in fixedly relieving state in rotation lock cover 8 made, under the leading role of the raised line 2 of outer tube 1, interior pipe 6 can slide by easy on and off in outer tube 1, owing to manage on 6 in limit rotor 4 is fixed on by fixing pin 5, the raised line 2 of outer tube 1 can only slide up and down in the groove 14 between the limit rotor 4, no matter internally manage 6 and apply clockwise or anticlockwise rotatory force, the raised line 2 of outer tube 1 all connects with limit rotor 4 sidewalls that are fixed on the interior pipe 6, thereby pipe 6 and outer tube 1 relatively rotates in effectively preventing, when being adjusted to appropriate length, pipe 6 was in stationary state in counter-rotation lock sleeve 8 can make, because interior pipe 6 and outer tube 1 can not relatively rotate, therefore only need a hand just can carry out locking operation, use very convenient; In addition because each limit rotor 4 is provided with semicircle end face 3, the semicircle end face 3 of two limit rotors 4 cooperates the open-topped that forms isolation surface and cover interior pipe 6, thereby interior pipe 6 and outer tube 1 sealing are isolated, between the isolation surface of the closed end of outer tube 1 and interior pipe 6, form enclosed space, pipe 6 activity outer tube 1 in the time is equivalent to form a kind of piston effect in making, can produce buffering air pressure and make the slowly motion in outer tube 1 of interior pipe 6, when tripod takes place that locking is malfunctioning between the interior pipe 6 of a supporting leg and the outer tube 1, because buffering air pressure outer tube 1 can not glide rapidly, can effectively slow down the tipping speed of tripod, make the equipment on the tripod avoid as much as possible damaging, therefore use safer.

Obviously the foregoing description is not to restriction of the present utility model, the utility model can also have a lot of variations, as long as the inwall of described outer tube 1 is provided with at least one axial arranged raised line 2, the top of pipe 6 is provided with at least two limit rotors 4 in described, the circular arc crooked sidewall of each limit rotor 4 and the outer side wall of interior pipe 6 adapt, the madial wall of each limit rotor 4 is provided with outstanding fixing pin 5, the fixed hole 13 that the sidewall of interior pipe 6 is provided with and each limits the fixing pin 5 of rotor 6 to match, each limit rotor 4 is provided with end face 3, the end face of limited rotor 3 cooperate to form isolation surface and cover in the open-topped of pipe 6, form the groove 14 that matches with raised line 2 on the outer tube wall between the sidewall of limit rotor 4, can solve technical problem to be solved in the utility model, and when the isolation surface of interior pipe 6 upper ends exists fraction slit or small gap, the piston effect of isolation surface still exists, and just its buffer level is different.

Claims

1, a kind of tripod, comprise telescopic supporting leg, it is characterized in that: described supporting leg comprises pipe (6) in the outer tube (1) of at least one section upper end closed and at least one section, interior pipe (6) is enclosed within the outer tube (1) movably, interior pipe (6) fixes by lockup device and outer tube (1), the inwall of described outer tube (1) is provided with at least one axial arranged raised line (2), the top of pipe (6) is provided with at least two limit rotors (4) in described, the circular arc crooked sidewall of each limit rotor (4) and the outer side wall of interior pipe (6) adapt, the madial wall of each limit rotor (4) is provided with outstanding fixing pin (5), the fixed hole (13) that the sidewall of interior pipe (6) is provided with and each limits the fixing pin (5) of rotor (6) to match, each limit rotor (4) is provided with end face (3), the end face (3) of limited rotor (4) cooperate to form isolation surface and cover in the open-topped of pipe (6), form the groove (14) that matches with raised line (2) on the outer tube wall between the sidewall of limit rotor (4).

2, tripod according to claim 1, it is characterized in that: the inwall of described outer tube (1) is provided with the raised line (2) of two positioned opposite, the top of pipe (6) is provided with two limit rotors (4) in described, each limit rotor (4) is provided with semicircle end face (3), the semicircle end face (3) of two limit rotors (4) cooperate form isolation surface and cover in the open-topped of pipe (6), form two grooves (14) that match with two raised lines (2) on the outer tube wall between the sidewall of two limit rotors (4).

3, tripod according to claim 1 and 2 is characterized in that: the projecting height of described fixing pin (5) is between the inwall of interior pipe (6) and outer wall or equal the wall thickness of interior pipe (6).

4, tripod according to claim 1 and 2, it is characterized in that: described lockup device comprises fixedlys connected with outer tube (1) and has externally threaded connecting sleeve (7), is enclosed within the snap ring (10) on interior pipe (6) outer wall and has the lock sleeve (8) of internal thread, the lower end of snap ring (10) is provided with radially-arranged flange (12), the lower end of lock sleeve (8) is provided with the conical surface (11) that matches with the flange (12) of snap ring (10), and lock sleeve (8) is threaded with connecting sleeve (7).

5, tripod according to claim 3, it is characterized in that: described lockup device comprises fixedlys connected with outer tube (1) and has externally threaded connecting sleeve (7), is enclosed within the snap ring edge (12) on interior pipe (6) outer wall, the lower end of lock sleeve (8) is provided with the conical surface (11) that matches with the flange (12) of snap ring (10), and lock sleeve (8) is threaded with connecting sleeve (7).

6, tripod according to claim 4 is characterized in that: the lower end of described outer tube (1) is provided with the conical surface (9) that matches with snap ring (10).

7, tripod according to claim 5 is characterized in that: the lower end of described outer tube (1) is provided with the conical surface (9) that matches with snap ring (10).