Anti-blocking expansion type structure

Abstract

The utility model discloses an anti-blocking expansion type structure and belongs to the technical field of expansion type structures, a connecting piece is installed at one end of a connecting flange, an expansion structure group is distributed on the connecting piece and comprises an expansion structure and an elastic structure, the expansion structure is installed on one side of the connecting piece in a surrounding mode, and the elastic structure is installed on the other side of the connecting piece. An elastic structure is installed on the expansion structure, the connecting flange, the connecting piece and the expansion structure are provided with guide grooves, the connecting flange is provided with a positioning hole and is of a connecting structure, the connecting piece is installed on one side of the connecting flange, and the expansion structure is distributed on one side of the connecting piece. An elastic structure covers the space between the expansion structures, guide grooves are formed among the connecting flange, the connecting piece, the expansion structures and the elastic structure, the elastic structure is an elastic structure, the expansion structures can extrude the elastic structure, clamping is prevented in the using process, and telescopic connection is achieved; and positioning connection is carried out through positioning holes outside the connecting flanges.

Description

Technical Field

[0001] The utility model relates to an anti - jamming expansion structure, belonging to the technical field of expansion structures. Background Art

[0002] As disclosed in a radial turbine expander structure with the application number: CN 112096460 B, it includes an air inlet pipe, a static wheel disc, a guide cone, an impeller, a rotating shaft, a moving impeller cover, and an exhaust guide ring. The air inlet pipe is connected to the back of the static wheel disc. The front of the static wheel disc is provided with a plurality of static blades arranged at intervals circumferentially. The plurality of static blades surround the central through - hole of the static wheel disc. The gap between every two adjacent static blades forms a nozzle. The bottom of the guide cone is connected to the tops of the plurality of static blades. The impeller is sleeved outside the rotating shaft and is connected to the rotating shaft. The front of the impeller is provided with a plurality of moving blades arranged at intervals circumferentially. The moving impeller cover is annular. The bottom surface of the moving impeller cover is connected to the tops of the plurality of moving blades. The plurality of moving blades surround the plurality of nozzles. The exhaust guide ring is arranged around the impeller and is opposite to the static wheel disc. The annular gap between the exhaust guide ring and the static wheel disc forms an exhaust passage. During operation, the flow direction of the working medium gas inside is centrifugal runoff, and it is efficient, reliable, and structurally compact.

[0003] Based on retrieval and analysis, it is found that there are still deficiencies in the prior art:

[0004] The operating head in the prior art is a fixed structure during use, with poor elasticity and is prone to jamming during use. Therefore, an anti - jamming expansion structure is needed to improve the above deficiencies. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide an anti - jamming expansion structure.

[0006] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0007] An anti - jamming expansion structure includes a connecting flange;

[0008] One end of the connecting flange is installed with a connecting piece, and an expansion structure group is distributed on the connecting piece.

[0009] Preferably, the expansion structure group includes an expansion structure and an elastic structure. The expansion structure is installed around one side of the connecting piece, and the elastic structure is installed on the expansion structure.

[0010] Preferably, the connecting flange, the connecting piece, and the expansion structure are provided with guide grooves.

[0011] Preferably, the connecting flange is provided with positioning holes.

[0012] Preferably, the elastic structure on the expansion structure is a pressing structure.

[0013] Preferably, the expansion structure is a split structure that is squeezed and connected to the elastic structure.

[0014] Advantageous technical effects of the present utility model:

[0015] A non - jamming expansion structure provided by the present utility model, wherein the connecting flange is a connecting structure, a connecting member is installed on one side of the connecting flange, an expansion structure is distributed on one side of the connecting member, an elastic structure is covered between the expansion structures, a guiding groove is provided between the connecting flange, the connecting member, the expansion structure and the elastic structure, the elastic structure is an elastic structure, the expansion structure can squeeze the elastic structure, prevent jamming during use, achieve telescopic connection, and perform positioning connection through the positioning holes outside the connecting flange. Description of the Drawings

[0016] Figure 1 Fig. is a schematic perspective view of the overall structure of a device according to a preferred embodiment of a non - jamming expansion structure of the present utility model;

[0017] Figure 2 Fig. is a side view of a preferred embodiment of a non - jamming expansion structure of the present utility model;

[0018] Figure 3 Fig. is a top view of a preferred embodiment of a non - jamming expansion structure of the present utility model.

[0019] In the figure: 1, connecting flange; 2, connecting member; 3, expansion structure; 4, elastic structure; 5, guiding groove; 7, positioning hole. Detailed Description of the Embodiment

[0020] To make the technical solution of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present utility model are not limited thereto.

[0021] As Figure 1 - Figure 3 shown, a non - jamming expansion structure provided in this embodiment includes a connecting flange 1;

[0022] One end of the connecting flange 1 is installed with a connecting member 2, and an expansion structure group is distributed on the connecting member 2.

[0023] The expansion structure group includes an expansion structure 3 and an elastic structure 4. The expansion structure 3 is installed around one side of the connecting member 2, and the elastic structure 4 is installed on the expansion structure 3.

[0024] The connecting flange 1, the connecting member 2 and the expansion structure 3 are provided with a guiding groove 5.

[0025] The connecting flange 1 is provided with positioning holes 6.

[0026] The elastic structure 4 on the expansion structure 3 is an extrusion structure.

[0027] The expansion structure 3 is connected by splitting and extruding the elastic structure 4.

[0028] As Figure 1 - Figure 3 As shown in the figure, the working process of an anti-jamming expansion structure provided in this embodiment is as follows: The connecting member 2 and the expansion structure 3 are fixedly connected through the connecting flange 1. After connection, during use, the expansion structure 3 is pushed and telescoped by extrusion towards the elastic structure 4.

[0029] Embodiment

[0030] As Figure 1 - Figure 3 As shown in the figure, the connecting flange 1 is a connecting structure. A connecting member 2 is installed on one side of the connecting flange 1. An expansion structure 3 is distributed on one side of the connecting member 2. An elastic structure 4 is covered between the expansion structures 3. A guiding groove 5 is provided between the connecting flange 1, the connecting member 2, the expansion structure 3 and the elastic structure 4. The elastic structure 4 is an elastic structure. The expansion structure 3 can extrude the elastic structure 4 to prevent jamming during use and achieve telescopic connection. Positioning connection is carried out through the positioning holes 6 outside the connecting flange 1.

[0031] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, all belong to the protection scope of the present invention.

Claims

1. An anti-jamming expansion structure, comprising a connecting flange (1); It is characterized in that: One end of the connecting flange (1) is provided with a connecting member (2), and an expansion structure group is distributed on the connecting member (2).

2. The anti-jamming expansion structure according to claim 1, wherein: The expansion structure group includes an expansion structure (3) and an elastic structure (4). The expansion structure (3) is installed around one side of the connecting member (2), and the elastic structure (4) is installed on the expansion structure (3).

3. The anti-jamming expansion structure according to claim 2, characterized in that: The connecting flange (1), the connecting member (2) and the expansion structure (3) are provided with a guiding groove (5).

4. The anti-jamming expansion structure according to claim 3, characterized in that: The connecting flange (1) is provided with a positioning hole (6).

5. The anti-jamming expansion structure according to claim 4, characterized in that: The elastic structure (4) on the expansion structure (3) is an extrusion structure.

6. The anti-jamming expansion structure according to claim 5, characterized in that: The expansion structure (3) is a split type that is extruded and connected to the elastic structure (4).

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