CN2330810Y

CN2330810Y - Connecting sleeve for electric fan

Info

Publication number: CN2330810Y
Application number: CN 98213992
Authority: CN
Inventors: 江衍雄
Original assignee: WEICHENG ELECTRICAL APPLIANCE CO Ltd SHENZHEN
Priority date: 1998-05-15
Filing date: 1998-05-15
Publication date: 1999-07-28
Anticipated expiration: 2008-05-15

Abstract

The utility model provides a connecting sleeve for an electric fan, which has a tubular structure. An annular dummy club is arranged at the middle part of the outer wall of the connecting sleeve, a plurality of guide concave grooves used for installation are respectively arranged at both end portions of the outer wall of the connecting sleeve, the guide concave grooves are arranged at the symmetrical positions at both end portions, the number of guide concave grooves at each end portion is equal, and the guide concave grooves at each end portion are evenly arranged along the circumferential direction. The connecting sleeve of the utility model can be sheathed on an electric fan conveniently when corresponding convex points are arranged at positions on a casing tube of a standing post of an existing electric fan, and the positions of the convex points are corresponding to the guide concave grooves of the connecting sleeve. The utility model has the advantages of convenient manufacture, reliable connection, and low cost.

Description

The electric fan connecting sleeve

The utility model relates to a kind of link, is used for the connection of pipe, particularly relates to the connecting sleeve that a kind of electric fan is used, and is applicable to the connection between the electric fan column sleeve pipe.

In the seat that uses at present, upright dual-purpose electric fan, generally regulate the height of electric fan by the quantity of increase and decrease column sleeve pipe, employing is with the directly socket mutually of column sleeve pipe, the advantage of this Placement is to be convenient to processing, during increase and decrease sleeve pipe quantity, it is simple and easy to do to operate, the poor stability when its deficiency is the electric fan use; After employing directly interconnects the column sleeve pipe, utilize pin or screw to fasten again in the joint, electric fan was difficult for rocking when the advantage of this Placement was to use, and still, had increased processing and operational sequence, and influenced the attractive in appearance of electric fan profile.

The purpose of this utility model provides a kind of electric fan connecting sleeve, can conveniently connect the column sleeve pipe reliably.

For achieving the above object, electric fan connecting sleeve of the present utility model is a tubular-shaped structures, on the outer wall of connecting sleeve, the middle part is provided with annular boss, two end portions is respectively equipped with the direction recess of a plurality of installation usefulness, the position symmetry that direction recess is provided with in two end portions, quantity equate that the direction recess of every end portion is along circumferentially evenly configuration.

Because the two end portions of the utility model connecting sleeve is provided with the direction recess of a plurality of installation usefulness, like this, only need on the upright firmly position that sleeve pipe is corresponding with direction recess of existing electric fan, corresponding salient point to be set, can connect with the connecting sleeve cover easily, be convenient to processing, and cover is prompt reliable, with low cost.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the perspective view of the utility model electric fan with connecting sleeve.

Fig. 2 is the plan view of connecting sleeve shown in Figure 1.

Fig. 3 is the sectional view of connecting sleeve shown in Figure 2 along the A-A line.

From Fig. 1, Fig. 2, Fig. 3 as can be known, the utility model electric fan is a tubular-shaped structures with connecting sleeve 1, on outer wall, the middle part is provided with annular boss 2, and two end portions is respectively equipped with direction recess 3, uses for installing, the position symmetry that direction recess 3 is provided with in two end portions, every end portion is provided with the direction recess 3 that a plurality of edges circumferentially evenly dispose, and can adopt 2,3,4, is advisable with 2.Live on the sleeve pipe in that existing electric fan is upright, only need on its position corresponding, corresponding salient point to be set, just can at an easy rate itself and this connecting sleeve cover be connected with connecting sleeve direction recess 3.The shape of direction recess 3 can be selected turning shape direction recess for use, is advisable with " L " shape.Angle between the lateral part 4 of " L " shape direction recess 3 and the vertical part 5 can be right angle or non-right angle, is advisable with the obtuse angle, and spends for good with 99.The advantage of Xuan Zeing is that the column sleeve stress is reasonable, and socket is tight when making column sleeve pipe and 1 socket of this connecting sleeve like this.For making connecting sleeve 1 and the socket of column sleeve pipe get tightr, be provided with the sliding rib 6 in location in the lateral part 4 of " L " shape direction recess 3, the sliding rib 6 in this location has the slope towards the starting point direction of " L " shape direction recess 3, terminal point direction towards " L " shape direction recess 3 has step, during installation, salient point on the column sleeve pipe inserts from the starting point of direction recess 3, enter lateral part 4 by vertical part 5, very successfully slide step along sliding rib 6 slopes, location, reach the terminal point of direction recess 3, thereby, realize tight connection the between connecting sleeve 1 and the column sleeve pipe.For the ease of installing, on annular boss 2, be provided with adjustment notch, adjustment notch has the starting mark of expression direction recess 3 starting points, for example " 0 " and represent the terminal point mark of its terminal point, for example " 1 ".Electric fan can be made by plastic material with connecting sleeve 1.

In actual use, as required, the length of the vertical part 5 of " L " shape direction recess 3 of connecting sleeve 1 two end portions, can be unequal, for example, with the connecting sleeve 1 that the column sleeve pipe socket on the electric fan pedestal is used, the length that is shorter in length than other vertical part 5 of the vertical part 5 of direction recess 3 on the one end portion, this mainly is that the height of the column sleeve pipe on the pedestal is shortened, and is convenient to vanning.

Claims

1, a kind of electric fan connecting sleeve, it is tubular-shaped structures, it is characterized in that: on the outer wall of connecting sleeve (1), the middle part is provided with annular boss (2), two end portions is respectively equipped with the direction recess (3) of a plurality of installation usefulness, the position symmetry that direction recess (3) is provided with in two end portions, quantity equate that the direction recess of every end portion (3) is along circumferentially evenly configuration.

2, according to the described connecting sleeve of claim 1, it is characterized in that: described direction recess (3) is " L " shape direction recess (3).

3, according to the described connecting sleeve of claim 2, it is characterized in that: the angle between the lateral part (4) of described " L " shape direction recess (3) and the vertical part (5) is the obtuse angle.

4, according to the described connecting sleeve of claim 3, it is characterized in that: the angle between the lateral part (4) of described " L " shape direction recess (3) and the vertical part (5) is 99 degree.

5, according to the described connecting sleeve of claim 4, it is characterized in that: the lateral part (4) of described " L " shape direction recess (3) is provided with the sliding rib (6) in location, the sliding rib in location (6) has the slope towards the starting point direction of " L " shape direction recess (3), and the terminal point direction of court's " L " shape direction recess (3) has step.

6, according to any connecting sleeve described in the claim 1 to 5, it is characterized in that: described annular boss (2) is provided with the starting mark of expression direction recess (3) starting point and the terminal point mark of its terminal point of expression.