CN2319849Y - Pivot device - Google Patents

Abstract

The utility model relates to a pivot, which solves the problems of easy use, good jointing and long service life. The pivot device comprises a pivot, a pivoted connecting part, an engaging shaft arranged on a first object end and a sleeve arranged on a second object end. The utility model is characterized in that the pivot forms a ratchet wheel shape; the pivot is extended with ratchets; the ratchets are toward a same direction. The engaging shaft is hollow in the inner part and is provided with cutting grooves with intervals. The pivot is matched with the hollow inner part of the engaging shaft; the ratchets are respectively matched with the cutting grooves of the engaging shaft; the outer end of each ratchet protrudes out of the engaging shaft. The inner diameter of the sleeve is greater than the outer diameter of the engaging shaft; the pivot and the engaging shaft are inserted into the sleeve. The utility model is used for connecting.

Description

Pivot device

The utility model relates to pivot, refers in particular to a kind of device that two articles articulates that can be applicable to.

Existing pivot device as article such as robot calculator, e-dictionary and translation machines, articulates with pivot device between two in its display and main frame, so that two articles can be raised or closing motion.But this structure, owing to need frictionally to keep tightness, for example with suitable support.Locating when raising as objects such as displays, all is tight raising or closing usually, causes the inconvenience in the use, also can amount with resilience cause not enough driving fit between two articles when closing, and friction force is big when closing, and also can reduce its friction durability.

The purpose of this utility model provide a kind of easy to use, close driving fit, close that friction force is little, the pivot device of long service life.

The purpose of this utility model is achieved in that pivot device, it comprises pivot and articulated section, comprises the linking axle of being located at the first object end and the sleeve that is located at the second object end, and it is characterized in that: this pivot is established and is ratchet-like, be extended with ratchet on the pivot, ratchet in the same direction; This is connected the axle inner hollow, and is interval with profile groove; Pivot matches with being connected the axle inner hollow, and its ratchet respectively is matched with the profile groove that is connected axle, and each ratchet outer end protrudes from and is connected outside the axle; The internal diameter of this sleeve inserts pivot and is connected axle greater than being connected the axle external diameter in the sleeve.

Above-mentioned design, sleeve one end opening so that pivot and be connected axle and insert together, pivot is that rubber is made, and has soft elasticity, by the articulated section, first object is connected with second object again, reach folding freely, effect easy to use.

Below by drawings and Examples the utility model is described further again.

Fig. 1 is the utility model first embodiment perspective exploded view.

Fig. 2 is the three-dimensional combination of the utility model first an embodiment synoptic diagram.

Fig. 3 is the utility model first embodiment planar gesture synoptic diagram.

Fig. 4 is the enlarged drawing of local A among Fig. 3.

Fig. 5 is the utility model first embodiment other direction planar gesture synoptic diagram.

Fig. 6 is the enlarged drawing of local B among Fig. 5.

Fig. 7 is the utility model second embodiment perspective exploded view.

As shown in Figure 1, 2: the utility model comprises pivot 13 and articulated section 15,22, comprise the linking axle 11 of being located at first object, 10 ends and the sleeve 21 that is located at second object, 20 ends, it is characterized in that: this pivot 13 is established and is ratchet-like, is extended with ratchet 14 on the pivot 13, and ratchet 14 in the same direction; This is connected axle 11 inner hollow, and is interval with profile groove 12; Pivot 13 matches with being connected axle 11 inner hollow, and its ratchet 14 respectively is matched with the profile groove 12 that is connected axle, and each ratchet 14 outer end protrudes from and is connected outside the axle 11; The internal diameter of this sleeve 21 inserts pivot 13 and is connected axle 11 greater than being connected axle 11 external diameters in the sleeve 21.When being embodiment with the e-dictionary, then first object 10 is a main frame, second object 20 is a display, utilize the soft elasticity of pivot 13, can will be connected in axle 11 and the pivot 13 insertion sleeves 21 at an easy rate, with first object 10 end in addition of end and second object 20 in addition, articulate together with general articulated section commonly used 15,22, and refill bottom 16 again.

Shown in Fig. 3-6: be used as and raise or during closing motion, can utilize and be connected axle 11 drive pivots 13, when pivot 13 rotates in sleeve 21, have a direction and as Fig. 3,4 expansion friction force is heightened because of ratchet 14, otherwise, can shrink and friction force is diminished as Fig. 5,6 ratchets 14, can reach raise tight, close the good result of pine, and solved the driving fit problem, brought the convenience of using, improve friction durability thereupon, make assembling easily.

As shown in Figure 7: the utility model also can be in the direct integrally formed pivot 13 that is convexly equipped with ratchet-like of the first object rear side end, and is provided with uneven surface 17 in ratchet 14 outer ends of pivot 13, to increase friction force, when assembling, can directly pivot 13 be inserted sleeves 21.

Claims (3)

1, pivot device, it comprises pivot and articulated section, comprises the linking axle of being located at the first object end and the sleeve that is located at the second object end, it is characterized in that: this pivot is established and is ratchet-like, is extended with ratchet on the pivot, and ratchet is in the same direction; This is connected the axle inner hollow, and is interval with profile groove; Pivot matches with being connected the axle inner hollow, and its ratchet respectively is matched with the profile groove that is connected axle, and each ratchet outer end protrudes from and is connected outside the axle; The internal diameter of this sleeve inserts pivot and is connected axle greater than being connected the axle external diameter in the sleeve.

2, pivot device as claimed in claim 1 is characterized in that: pivot is that rubber is made.

3, pivot device as claimed in claim 1 is characterized in that: the ratchet outer end is provided with uneven surface.

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