Engine flange plate

Abstract

The utility model discloses an engine flange plate which comprises a flange plate body, the flange plate body comprises an outer plate and an inner plate, the inner plate is provided with a center threaded hole connected with a matched pipeline, the center of the outer plate is provided with a fixing through hole corresponding to the inner plate, the inner plate is provided with an outer edge, and the diameter of the section of the outer edge is larger than that of the section of the fixing through hole. And a limiting piece is clamped between the outer disc and the outer edge and is fixedly connected with the outer disc through a fastening bolt. The flange plate is novel in structure, the inner plate can be detached and replaced, the situation that the whole flange plate needs to be replaced due to thread slipping or abrasion of the center threaded hole is avoided, and compared with an existing flange plate of an integrally-formed structure, maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of flange plate, especially relates to an engine flange plate. BACKGROUND

[0002] In the automobile engine, the flange plate is a commonly used connecting accessory, which can be used for connecting the matched pipeline.

[0003] The existing engine flange plate is mostly of an integral molding structure, when the center threaded hole appears thread sliding or wear, it is difficult to effectively fix the pipeline, which affects normal use, at this time, the whole flange plate needs to be replaced, which is easy to cause resource waste.

[0004] The prior art document (publication number: CN204922297U) discloses a flange connecting piece, which also has the above problems. SUMMARY

[0005] The utility model aims at solving the above technical problems in the prior art, and provides an engine flange plate, which has a novel structure, the inner disc is detachable and replaceable, the whole flange plate does not need to be replaced due to the thread sliding or wear of the center threaded hole, compared with the flange plate of the existing integral molding structure, the maintenance cost is reduced.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] An engine flange plate comprises a flange plate body, characterized in that the flange plate body comprises an outer disc and an inner disc, the inner disc is provided with a center threaded hole connected with a matched pipeline, the center of the outer disc is provided with a fixed through hole corresponding to the inner disc, the inner disc is provided with an outer edge, the cross-sectional diameter of the outer edge is greater than that of the fixed through hole, a limiting piece is clamped between the outer disc and the outer edge, and the limiting piece is connected and fixed with the outer disc through a fastening bolt.

[0008] Further, the limiting piece comprises a center column and a limiting sheet, the limiting sheets are symmetrically distributed on the center column, the spacing between the upper and lower limiting sheets is matched with the outer edge, so that the limiting piece clamps the outer edge, the center column is provided with a through hole for the fastening bolt to pass through, and the outer disc is provided with a threaded hole matched with the fastening bolt for connection.

[0009] Further, the fixed through hole is provided with a positioning ring, the positioning ring is provided with a positioning protrusion, and the bottom surface of the inner disc is provided with a positioning recess hole corresponding to the positioning protrusion. During installation, the limiting piece is first clamped on the outer edge, and then the inner disc is installed into the fixed through hole, so that the positioning recess hole covers the positioning protrusion, at this time, the through hole and the threaded hole are just aligned, the installation of the fastening bolt is facilitated, the hole alignment difficulty is reduced, and the assembly efficiency is improved.

[0010] Further, the outer edge is provided with a notch matched with the center column. During installation, the center column is transversely embedded into the notch, and then the limiting piece is locked through the fastening bolt, the limiting piece cannot freely move, and then the outer edge cannot rotate in the circumferential direction, and the inner disc cannot rotate in the circumferential direction, so that the installation stability is high.

[0011] Further, the center column and the limiting piece are in an integrated forming structure, the forming is rapid, the structure is stable, and the integrated forming structure is durable.

[0012] Further, the surface of the flange disc body is coated with a corrosion-resistant layer, the corrosion-resistant performance of the flange disc body is improved, and the service life is prolonged.

[0013] Further, the outer disc is provided with a mounting through hole, a bolt is penetrated into the mounting through hole, and the whole is fixed to a specified mounting position of the engine.

[0014] The utility model discloses a flange disc for engine, which has the following beneficial effects:

[0015] The inner disc is detachable and replaceable, so that the whole flange disc does not need to be replaced due to the thread slipping or wear of the center threaded hole, and the maintenance cost is reduced compared with the flange disc of the prior art in which the structure is integrally formed; during installation, the center column is transversely embedded into the notch, the limiting piece is positioned on the outer edge, the inner disc is installed into the fixed through hole, the through hole is aligned with the threaded hole, the fastening bolt is installed on the through hole and screwed into the threaded hole, the end of the fastening bolt presses the limiting piece, the limiting piece is locked, the free movement of the limiting piece is limited, the outer edge is clamped by the two limiting pieces and limited to rotate in the circumferential direction, the axial movement and the circumferential rotation of the inner disc are limited, and the installation stability of the inner disc is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings:

[0017] Figure 1 It is a structure schematic view of the flange disc for engine;

[0018] Figure 2 It is a structure schematic view of the flange disc body bottom in the utility model;

[0019] Figure 3 It is a structure schematic view of the limiting piece and the outer edge connection in the utility model;

[0020] Figure 4 It is the structure schematic view of the inner disc in the utility model;

[0021] Figure 5 It is the structure schematic view of the butt joint of the outer disc and the limiting piece in the utility model.

[0022] In the drawing: 1-outer disc; 2-inner disc; 3-mounting through hole; 4-center threaded hole; 5-fixing through hole; 6-outer edge; 7-limiting piece; 8-fastening bolt; 9-center column; 10-limiting sheet; 11-notch; 12-through hole; 13-threaded hole; 14-positioning ring; 15-positioning protrusion; 16-positioning recess. DETAILED DESCRIPTION

[0023] As Figures 1 to 5 shown, it is an engine flange plate of the utility model, including: flange plate body, the surface of flange plate body is coated with corrosion-resistant layer, the corrosion-resistant layer can adopt zinc plating layer, improves the corrosion resistance of flange plate body, prolongs the service life.

[0024] The flange plate body includes outer disc 1 and inner disc 2, and the outer disc 1 is provided with mounting through hole 3, and the bolt is inserted into the mounting through hole 3, so that the whole is fixed to the specified mounting position of the engine. The inner disc 2 is provided with center threaded hole 4, which is convenient for connecting with the matched pipeline, and improves the convenience of connection.

[0025] The center of the outer disc 1 is provided with fixing through hole 5 corresponding to the inner disc 2, and the inner disc 2 is provided with outer edge 6, the cross-sectional diameter of the outer edge 6 is greater than the cross-sectional diameter of the fixing through hole 5, the limiting piece 7 is clamped between the outer disc 1 and the outer edge 6, the limiting piece 7 is connected and fixed with the outer disc 1 through fastening bolt 8, the limiting piece 7 includes center column 9 and limiting sheet 10, the limiting sheet 10 is symmetrically distributed on the center column 9, and the center column 9 and the limiting sheet 10 are integrally formed structure, which is formed quickly, stable in structure and durable. The outer edge 6 is provided with notch 11 matched with the center column 9, the spacing of the upper and lower limiting sheets 10 is matched with the outer edge 6, the center column 9 is provided with through hole 12 for the fastening bolt 8 to pass through, and the outer disc 1 is provided with threaded hole 13 matched with the fastening bolt 8.

[0026] The inner disc 2 can be replaced, preventing the need to replace the whole flange disc due to the center threaded hole 134 slipping or wearing, reducing the maintenance cost compared with the prior art flange disc with an integral structure; during installation, the center column 9 is transversely embedded into the notch 11, the limiting piece 7 is positioned on the outer edge 6, then the inner disc 2 is installed into the fixed through hole 5, the through hole 12 is aligned with the threaded hole 13, then the fastening bolt 8 is installed on the through hole 12 and screwed into the threaded hole 13, the end of the fastening bolt 8 presses the limiting piece 7, the limiting piece 7 is locked, the free movement of the limiting piece 7 is limited, the limiting piece 7 clamps the outer edge 6 through the two limiting pieces 10 and limits the circumferential rotation of the outer edge 6, further limiting the axial movement and circumferential rotation of the inner disc 2, improving the installation stability of the inner disc 2.

[0027] The fixed through hole 5 is provided with a positioning ring 14, the positioning ring 14 is provided with a positioning protrusion 15, and the bottom surface of the inner disc 2 is provided with a positioning recess hole 16 corresponding to the positioning protrusion 15.

[0028] During installation, the limiting piece 7 is first clamped on the outer edge 6, then the inner disc 2 is installed into the fixed through hole 5, the positioning recess hole 16 is sleeved with the positioning protrusion 15, at this time, the through hole 12 is just aligned with the threaded hole 13, facilitating the installation of the fastening bolt 8, reducing the hole alignment difficulty, and thus improving the assembly efficiency.

[0029] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the same technical problem and achieve the same technical effect is covered by the protection scope of the present application.

Claims

1. An engine flange plate, comprising: a flange plate body, characterized in that: the flange plate body comprises an outer disc and an inner disc, the inner disc is provided with a central threaded hole connected with a matched pipeline, the center of the outer disc is provided with a fixed through hole corresponding to the inner disc, the outer disc is provided with an outer edge, the cross-sectional diameter of the outer edge is larger than that of the fixed through hole, a limiting piece is clamped between the outer disc and the outer edge, and the limiting piece is connected and fixed with the outer disc through a fastening bolt.

2. An engine flange plate according to claim 1, characterized in that: the limiting piece comprises a center column and a limiting piece, the limiting pieces are symmetrically distributed on the center column, the spacing between the upper and lower limiting pieces is matched with the outer edge, so that the limiting piece clamps the outer edge, the center column is provided with a through hole for the fastening bolt, and the outer disc is provided with a threaded hole matched with the fastening bolt.

3. An engine flange plate according to claim 2, characterized in that: a positioning ring is arranged in the fixed through hole, the positioning ring is provided with a positioning protrusion, and the bottom surface of the inner disc is provided with a positioning recess hole corresponding to the positioning protrusion.

4. An engine flange plate as claimed in claim 2, characterized in that: a notch matched with the center column is arranged on the outer edge.

5. An engine flange plate as claimed in claim 2, characterized in that: the center column and the limiting piece are an integral structure.

6. An engine flange plate as claimed in claim 1, characterized in that: the surface of the flange plate body is coated with a corrosion-resistant layer.

7. An engine flange plate as claimed in claim 1, characterized in that: the outer disc is provided with a mounting through hole.

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