CN2859178Y

CN2859178Y - Trivets

Info

Publication number: CN2859178Y
Application number: CN 200620039352
Authority: CN
Inventors: 陈庆元
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-26
Filing date: 2006-01-26
Publication date: 2007-01-17
Anticipated expiration: 2016-01-26

Abstract

The utility model discloses a trivet with good lock efficiency and seal ability. It includes the lock device of scalable support leg; said lock device comprises connecting tube, at least one fixing ring, at least one flexible clasp and locking sleeve; all the fixing ring and flexible clasp are arranged between inner tube and connecting tube in the order of one fixing ring and one flexible clasp; the fixing ring is a circle with closed circumference, the two ends of which have concave taper surface; the flexible clasp is a circle with a gap, the two ends of which have convex taper surface; the fixing ring's taper surface fits with adjacent the flexible clasp's convex taper surface; one end of the first fixing ring is against the end surface of outer tube; the last flexible clasp is against the taper surface of locking sleeve's lower end; the locking sleeve is screw connected with the connecting tube.

Description

Tripod

Technical field

The utility model relates to a kind of tripod, particularly the lockup device of retractable supports 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, interior pipe fixes by lockup device and outer tube, described lockup device generally comprises and has externally threaded connecting tube, snap ring and the lock sleeve that has internal thread, snap ring is a notched annulus, the two ends of snap ring are plane structure, one end of snap ring and the end face of outer tube connect, the conical surface that one end of snap ring and lock sleeve lower end are provided with connects, and lock sleeve is threaded with connecting tube.The lockup device of this structure is because the end face of snap ring is a plane structure, when matching with the conical surface that the lock sleeve lower end is provided with, the end face of snap ring cooperates for the some face, and have only an end to push, the coupling mechanism force that produces during lock sleeve locking is not enough, can not lock rapidly, lock gruelling, locking efficient low; In order to improve locking efficient, can be provided with conical surface in the lower end surface of outer tube, the two ends of snap ring all are squeezed, though part has improved locking efficient, but still for the some face cooperates, the coupling mechanism force of generation is restricted, and the drawback that snap ring is stuck in outer tube wall takes place easily; When inner and outer pipes needs sealing,, when preventing that outer tube from gliding rapidly,, can produce leakage, thereby weaken pooling feature because snap ring has breach so that produce buffering air pressure.

Summary of the invention

Technical problem to be solved in the utility model is the above-mentioned deficiency that overcomes prior art, and a kind of tripod of locking efficient height, good sealing effect is provided.

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 at least one section outer tube and at least one section, interior pipe is enclosed within the outer tube movably, interior pipe fixes by lockup device and outer tube, described lockup device comprises and has externally threaded connecting tube, at least one retaining ring, at least one snap ring and the lock sleeve that has internal thread, connecting tube is fixedlyed connected with outer tube or is structure as a whole, all retaining rings and snap ring are set between interior pipe and the connecting tube successively with the order of a retaining ring and a snap ring, retaining ring is a circumference closed circle, the two ends of retaining ring are respectively equipped with the indent conical surface, snap ring is a notched annulus, the two ends of snap ring are provided with the evagination conical surface, the indent conical surface of retaining ring matches with the evagination conical surface of adjacent snap ring, one end of first retaining ring and the end face of outer tube connect, the lower end of last snap ring and lock sleeve connects, the lower end of lock sleeve is provided with the conical surface that matches with the evagination conical surface of last snap ring, and lock sleeve is threaded with connecting tube.

The beneficial effects of the utility model are: because the two ends of snap ring all are provided with the evagination conical surface, match with the indent conical surface of adjacent two retaining rings respectively, perhaps match with the indent conical surface of a retaining ring and the conical surface of lock sleeve lower end respectively, the two ends of snap ring all are squeezed during lock sleeve locking, produce coupling mechanism force, and they all be conical surface with conical surface between cooperate, coupling mechanism force is improved, therefore improved locking efficient greatly, make inner and outer pipes can be rapidly, locking like a cork; On the other hand because retaining ring is a circumference closed circle, the breach on can the shutoff snap ring makes the sealing effect between the inner and outer pipes better.

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

Description of drawings

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

Fig. 2 is the general structure schematic representation of retaining ring among Fig. 1.

Fig. 3 is the sectional view of retaining ring among Fig. 2.

Fig. 4 is the general structure schematic representation of snap ring among Fig. 1.

Fig. 5 is the sectional view of snap ring among Fig. 4.

Fig. 6 is second kind of embodiment's of the utility model tripod a general structure schematic sectional view.

Fig. 7 is the general structure schematic representation of retaining ring among Fig. 6.

Fig. 8 is the sectional view of retaining ring among Fig. 7.

Fig. 9 is the general structure schematic representation of snap ring among Fig. 6.

Figure 10 is the sectional view of snap ring among Fig. 9.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, first 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 2, interior pipe 2 is enclosed within the outer tube 1 movably, in pipe 2 fix by lockup device and outer tube 1, described lockup device comprises and has externally threaded connecting tube 3, a retaining ring 4, snap ring 5 and have the lock sleeve 6 of internal thread, connecting tube 3 is structure as a whole with outer tube 1, retaining ring 4 and snap ring 5 are set between interior pipe 2 and the connecting tube 3, retaining ring 4 is a circumference closed circle, the two ends of retaining ring 4 are respectively equipped with indent conical surface 7, snap ring 5 is a notched annulus, the two ends of snap ring 5 are provided with evagination conical surface 9, one end of retaining ring 4 and the end face of outer tube 1 connect, one end of the other end of retaining ring 4 and snap ring 5 is connected, the lower end of the other end of snap ring 5 and lock sleeve 6 connects, the lower end of lock sleeve 6 is provided with the conical surface 10 that matches with the evagination conical surface 9 of snap ring 5, and lock sleeve 6 is threaded with connecting tube 3.

As Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, second 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 2, interior pipe 2 is enclosed within the outer tube 1 movably, in pipe 2 fix by lockup device and outer tube 1, described lockup device comprises and has externally threaded connecting tube 3, two retaining rings 4, two snap rings 5 and have the lock sleeve 6 of internal thread, connecting tube 3 is structure as a whole with outer tube 1, all retaining rings 4 and snap ring 5 are set between interior pipe 2 and the connecting tube 3 successively with the order of a retaining ring 4 and a snap ring 5, retaining ring 4 is a circumference closed circle, the two ends of retaining ring 4 are respectively equipped with indent conical surface 7, snap ring 5 is a notched annulus, the two ends of snap ring 5 are provided with evagination conical surface 9, one end of first retaining ring 4 and the end face of outer tube 1 connect, one end of the other end of first retaining ring 4 and first snap ring 5 is connected, one end of the other end of first snap ring 5 and second retaining ring 4 is connected, one end of the other end of second retaining ring 4 and second snap ring 5 is connected, the lower end of the other end of second snap ring 5 and lock sleeve 6 connects, the lower end of lock sleeve 6 is provided with the conical surface 10 that matches with the evagination conical surface 9 of snap ring 5, and lock sleeve 6 is threaded with connecting tube 3.

Obviously the foregoing description is not to restriction of the present utility model, and the utility model can also have a lot of variations, such as being with three retaining rings 4 and three snap rings 5 between interior pipe 2 and the connecting tube 3, can solve technical problem of the present utility model equally.

Claims

1, a kind of tripod, comprise telescopic supporting leg, described supporting leg comprises pipe (2) at least one section outer tube (1) and at least one section, interior pipe (2) is enclosed within the outer tube (1) movably, interior pipe (2) fixes by lockup device and outer tube (1), it is characterized in that: described lockup device comprises and has externally threaded connecting tube (3), at least one retaining ring (4), at least one snap ring (5) and have the lock sleeve (6) of internal thread, connecting tube (3) is fixedlyed connected with outer tube (1) or is structure as a whole, all retaining rings (4) and snap ring (5) are set between interior pipe (2) and the connecting tube (3) successively with the order of a retaining ring (4) and a snap ring (5), retaining ring (4) is a circumference closed circle, the two ends of retaining ring (4) are respectively equipped with indent conical surface (7), snap ring (5) is a notched annulus, the two ends of snap ring (5) are provided with evagination conical surface (9), the indent conical surface (7) of retaining ring (4) matches with the evagination conical surface (9) of adjacent snap ring (5), the end face of one end of first retaining ring (4) and outer tube (1) connects, last snap ring (5) connects with the lower end of lock sleeve (6), the lower end of lock sleeve (6) is provided with the conical surface (10) that matches with the evagination conical surface (9) of last snap ring (5), and lock sleeve (6) is threaded with connecting tube (3).

2, tripod according to claim 1, it is characterized in that: described lockup device comprises connecting tube (3), a retaining ring (4), a snap ring (5) and lock sleeve (6), the end face of one end of retaining ring (4) and outer tube (1) connects, one end of the other end of retaining ring (4) and snap ring (5) is connected, and the other end of snap ring (5) cooperates butt with the lower end conical surface (10) of lock sleeve (6).

3, tripod according to claim 1 and 2, it is characterized in that: described lockup device comprises connecting tube (3), two retaining rings (4), two snap rings (5) and lock sleeve (6), the end face of one end of first retaining ring (4) and outer tube (1) connects, one end of the other end of first retaining ring (4) and first snap ring (5) is connected, one end of the other end of first snap ring (5) and second retaining ring (4) is connected, one end of the other end of second retaining ring (4) and second snap ring (5) is connected, and the other end of second snap ring (5) cooperates butt with the lower end conical surface (10) of lock sleeve (6).