Sleeve neck bush and awning

Abstract

The sleeve neck bush comprises a bush body, an elastic boss and a limiting boss, the bush body is arranged between an inner foot tube and an outer foot tube, the bush body is sleeved on the inner foot tube, the outer foot tube is sleeved outside the bush body, the elastic boss is arranged on the outer surface of the bush body, and the limiting boss is arranged on the outer surface of the bush body. An elastic boss is symmetrically arranged on the inner side of the lining, the elastic boss is in interference fit contact with the inner pipe wall of the outer foot pipe, two limiting bosses are symmetrically arranged on the inner side of the lining, limiting holes are correspondingly formed in the inner foot pipe, the limiting bosses are connected with the limiting holes in the inner foot pipe in a matched mode, and the section of the lining is in a C shape. The utility model has the advantages of simple structure, simple operation and reliable use, the plastic bushing is arranged between the inner foot tube and the outer foot tube, the elastic boss is arranged on the bushing, and certain friction force exists between the elastic boss and the wall of the outer foot tube, so that the inner foot tube can be prevented from sliding to the bottom of the outer foot tube in a vertical state.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic sleeves, in particular to a sleeve inner lining and a sunshade. Background Art

[0002] The telescopic sleeve generally includes an outer tube and an inner tube, and the outer tube is sleeved outside the inner tube. A metal spring is added between the existing telescopic sleeves to prevent the inner tube from slipping through the spring elastic force. However, the cost of the spring is high, the installation structure is complicated, the spring is easy to fall off during use, and the operation is unreliable. Utility Model Content

[0003] In view of the above problems, the utility model aims to provide a casing inner liner and a sunshade, which have simple structure and are easy to use.

[0004] The technical problem solved by the utility model can be achieved by adopting the following technical scheme: a sleeve inner liner, comprising a sleeve, an elastic boss and a limiting boss, wherein the sleeve is arranged between an inner leg tube and an outer leg tube, the sleeve is sleeved on the inner leg tube, the outer leg tube is sleeved outside the sleeve, and an elastic boss is arranged on the outer surface of the sleeve, and the elastic boss is in interference fit contact with the inner tube wall of the outer leg tube.

[0005] Two limiting bosses are symmetrically arranged on the inner side of the bushing, and limiting holes are correspondingly arranged on the inner leg tube. The limiting bosses are matched and connected with the limiting holes on the inner leg tube.

[0006] The cross-sectional shape of the bushing is C-shaped.

[0007] An opening is arranged on one side of the bushing, and limited bosses are arranged on two inner side surfaces on both sides of the opening surface, and an elastic boss is arranged on the surface facing the side of the opening.

[0008] The bushing is a plastic bushing.

[0009] The elastic boss is in a circular or elliptical shape.

[0010] The four vertical sides of the bushing are provided with rounded corners, and convex strips are provided on both sides of the rounded corners.

[0011] A sunshade using a sleeve inner sleeve, wherein the telescopic upright column of the sunshade is provided with a sleeve inner sleeve.

[0012] Compared with the prior art, the utility model has the following beneficial effects: a plastic bushing is arranged between the inner leg tube and the outer leg tube, and an elastic boss is arranged on the bushing. There is a certain friction between the elastic boss and the wall of the outer leg tube, which can prevent the inner leg tube from sliding to the bottom of the outer leg tube due to its own weight in a vertical state. The utility model has a simple structure, is easy to operate, and is reliable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0014] Figure 2 This is a diagram showing the coordination of the inner leg tube and the bushing of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the awning;

[0016] Figure 4 It is a structural schematic diagram of the telescopic columns of the awning;

[0017] Figure 5 is a cross-sectional view of a telescopic sleeve;

[0018] Figure 6 is a cross-sectional view of a telescopic sleeve;

[0019] Figure 7 It is a structural schematic diagram of a circular elastic boss bushing;

[0020] Figure 8 It is a structural schematic diagram of an elliptical elastic boss bushing;

[0021] In the figure: 1-inner foot tube, 2-outer foot tube, 3-bushing, 31-elastic boss, 32-limiting boss, 33-opening, 34-convex strip, 35-rounded corner. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0023] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Combined with Figures 1 to 8As shown, this embodiment discloses a sleeve inner bushing, including a bushing 3, an elastic boss 31 and a limiting boss 32. The plastic bushing 3 is arranged between the inner leg tube 1 and the outer leg tube 2. The plastic bushing 3 is sleeved on the inner leg tube 1, and the outer leg tube 2 is sleeved outside the plastic bushing 3. The outer surface of the bushing 3 is provided with an elastic boss 31. The elastic boss 31 is in interference fit contact with the inner tube wall of the outer leg tube 2. Two limiting bosses 32 are symmetrically arranged on the inner side of the bushing 3. The inner leg tube 1 is correspondingly provided with a limiting hole, and the limiting boss 32 is matched and connected with the limiting hole on the inner leg tube 1.

[0025] The cross-section of the bushing 3 is C-shaped and can accommodate large size deviations. An opening 33 is provided on one side of the bushing 3, and limited bosses 32 are provided on two inner sides of the opening surface, and an elastic boss 31 is provided on the surface facing the opening.

[0026] like Figure 6 , Figure 7 As shown, the elastic boss 31 is circular or elliptical in shape.

[0027] The four vertical sides of the bushing 3 are provided with fillets 35 , and convex strips 34 are provided on both sides of the fillets 35 . The convex strips 34 are fixed on the outer surface of the bushing 3 .

[0028] An outdoor product adopting the sleeve inner lining sleeve is a sunshade. The four telescopic columns of the sunshade are provided with the sleeve inner lining sleeves.

[0029] During installation, first put the plastic bushing 3 on the inner leg tube 1, insert the limiting boss 32 into the limiting hole on the inner leg tube 1, and then put the inner leg tube 1 into the outer leg tube 2. Since the elastic boss 31 is in close contact with the inner tube wall of the outer leg tube 2, the inner and outer leg tubes will generate friction when they are extended and retracted. The utility model has a simple structure, easy operation and reliable use. By arranging the plastic bushing 3 between the inner leg tube 1 and the outer leg tube 2, and arranging the elastic boss 31 on the bushing 3, there is a certain friction between the elastic boss 31 and the outer leg tube wall, which can prevent the inner leg tube 1 from sliding to the bottom of the outer leg tube 2 due to its own weight in the vertical state, and the installation is more secure.

[0030] The above description is only a preferred implementation mode of the utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the utility model still falls within the scope of the technical solution of the utility model.

Claims

1. A sleeve inner bushing, comprising a bushing (3), wherein the bushing (3) is arranged between an inner leg tube (1) and an outer leg tube (2), wherein the bushing (3) is sleeved on the inner leg tube (1), and the outer leg tube (2) is sleeved outside the bushing (3), characterized in that: An elastic boss (31) is provided on the outer surface of the bushing (3), and the elastic boss (31) is in interference fit contact with the inner tube wall of the outer leg tube (2).

2. The inner liner of a casing according to claim 1, characterized in that: The bushing (3) is provided with a limiting boss (32), and the inner leg tube (1) is correspondingly provided with a limiting hole, and the limiting boss (32) is cooperatively connected with the limiting hole on the inner leg tube (1).

3. The inner liner of a casing according to claim 1, characterized in that: The cross-sectional shape of the bushing (3) is C-shaped.

4. The inner sleeve of a casing according to claim 2, characterized in that: An opening (33) is provided on one side surface of the bushing (3), limiting bosses (32) are provided on two inner side surfaces on both sides of the opening surface, and an elastic boss (31) is provided on the surface facing the opening.

5. The casing inner liner according to claim 1, characterized in that: The elastic boss (31) is circular or elliptical in shape.

6. The casing inner liner according to claim 1, characterized in that: The bushing (3) is a plastic bushing.

7. The casing inner liner according to claim 1, characterized in that: Rounded corners (35) are provided on four vertical sides of the bushing (3), and convex strips (34) are provided on both sides of the rounded corners (35).

8. A sunshade using a sleeve inner sleeve according to any one of claims 1 to 6, characterized in that: The telescopic upright column of the awning is provided with a sleeve inner lining.

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