Elastic positioning device of automobile engine limiting ring

Abstract

The utility model relates to the technical field of engine limiting rings, in particular to an elastic positioning device of an automobile engine limiting ring, which comprises a lower limiting ring and an upper limiting ring, and is characterized in that the bottom end of an elastic mechanism is placed in the top end of the lower limiting ring, and the top end of the elastic mechanism is placed at the bottom end of the upper limiting ring; the top end of the lower limiting ring is fixed to the bottom end of the upper limiting ring, the elastic mechanism comprises an outer elastic piece and an inner elastic piece, the inner elastic piece is arranged in the center of the interior of the outer elastic piece, the weight of the limiting rings can be reduced, and then the light weight of an engine is improved; rapid positioning and installation are carried out through a lower positioning groove formed in the side of the lower limiting ring and an upper positioning groove formed in the side of the upper limiting ring, self-applicability is conveniently and rapidly improved, abrasion caused by friction of other parts can be further relieved through transverse rubber rings placed on the upper side and the lower side of a transverse fixing ring, and the service life of the device is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine limit ring, specifically to a kind of elastic positioning device of automobile engine limit ring. BACKGROUND

[0002] Automobile engine is the core component of automobile, its internal structure is complex and precise, the cooperative work of each part plays a decisive role for the performance and reliability of engine, limit ring is a key part in engine, mainly used to limit the axial or radial movement of some components, ensure the relative position of each component stable during the operation of engine, so as to ensure the normal operation of engine;

[0003] For example, the announcement number CN208811560U discloses a kind of thin-walled ring class automobile accessory positioning clamp, including positioning clamp cover, limit card seat, elastic deformation resistance layer, protective coating and thin-walled ring workpiece, limit card seat top end is set in positioning clamp cover, limit card seat top end is bonded with elastic deformation resistance layer, elastic deformation resistance layer outer edge is bonded in the inner wall of let go slot, elastic deformation resistance layer is equipped with thin-walled ring workpiece, thin-walled ring workpiece is equipped in limit card seat top end, elastic shock deformation performance is good, high strength, can effectively buffer and eliminate the extrusion force of processing tool and fixed clamp to thin-walled ring workpiece, so that thin-walled ring workpiece will not produce deformation, elastic deformation resistance layer is multi-tooth structure, so that elastic deformation resistance layer and thin-walled ring workpiece form multi-point surface contact, further improve the extrusion resistance of elastic deformation resistance layer;Protection coating is equipped between elastic deformation resistance layer and thin-walled ring workpiece, can reduce the extrusion force and friction force of thin-walled ring workpiece to elastic deformation resistance layer, prolong the service life of elastic deformation resistance layer.(ESM)Same invention has been applied for invention patent on the same day, but engine will produce violent vibration and larger temperature change during operation, rigidly positioned limit ring is difficult to adapt to these dynamic changes, prone to cause excessive wear between limit ring and other components, even possibly cause parts to loosen or damage, affect the overall performance and service life of engine, traditional rigid positioning device is often bulky, heavy, not conducive to the lightweight design of engine, at the same time, simple positioning mode cannot provide enough buffer and adaptive ability when facing the complex working environment of engine, difficult to meet the demand of modern engine for high precision and high reliability, therefore, it is urgent to design a kind of elastic positioning device of automobile engine limit ring to solve the above problems. UTILITY MODEL CONTENTS

[0004] The purpose of this invention is to provide an elastic positioning device for a limit ring of an automotive engine, in order to solve the problem mentioned in the background art that the engine will generate severe vibration and large temperature changes during operation. The rigid positioning limit ring is difficult to adapt to these dynamic changes, which can easily lead to excessive wear between the limit ring and other components, and may even cause loosening or damage to the components, affecting the overall performance and service life of the engine. Traditional rigid positioning devices are often large in size and heavy in weight, which is not conducive to the lightweight design of the engine. At the same time, the simple positioning method cannot provide sufficient buffering and self-adaptation capabilities when facing the complex working environment of the engine, and it is difficult to meet the high precision and high reliability requirements of modern engines.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elastic positioning device for a limit ring of an automobile engine, comprising a lower limit ring and an upper limit ring, wherein the bottom end of an elastic mechanism is placed inside the top end of the lower limit ring, the top end of the elastic mechanism is placed at the bottom end of the upper limit ring, the top end of the lower limit ring and the bottom end of the upper limit ring are fixed together, the elastic mechanism comprises an outer elastic element and an inner elastic element, and the inner elastic element is provided at the center of the inner part of the outer elastic element.

[0006] Preferably, the lower limiting ring has multiple sets of lower positioning grooves on its side, and the spacing between the multiple sets of lower positioning grooves is the same.

[0007] Preferably, a lower annular groove is formed at the top center of the lower limiting ring, a lower extension ring block is fixed inside the lower annular groove, and the bottom end of the elastic mechanism is placed inside the lower annular groove.

[0008] Preferably, the top of the upper limit ring is provided with upper friction texture, and the sides of the upper limit ring are provided with upper positioning grooves at equal intervals, and the bottom sides of the upper positioning grooves are vertically connected to the lower positioning grooves in sequence.

[0009] Preferably, an upper annular groove is formed inward at the center of the bottom end of the upper limit ring, an upper extension ring block is fixed downward on the inner side of the upper annular groove, and the top end of the elastic mechanism is engaged on the inner wall of the upper annular groove.

[0010] Preferably, the external elastic element includes a vertical rubber ring and a vertical fixing ring. The vertical rubber ring is attached to the inner wall of the connection between the lower annular groove of the lower limiting ring and the upper annular groove of the upper limiting ring, and the vertical fixing ring is attached to the inside of the vertical rubber ring.

[0011] Preferably, the internal elastic element includes a transverse fixing ring and a transverse rubber ring. The side of the transverse fixing ring is fixed to the central inner wall of the vertical fixing ring. Transverse rubber rings are placed on both the upper and lower walls of the transverse fixing ring. The two sets of transverse rubber rings are respectively attached to the inner sides of the lower extension ring block and the upper extension ring block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This is an elastic positioning device for a limit ring of an automobile engine. The lower annular groove inside the lower limit ring can be connected with the upper annular groove inside the upper limit ring to form a cavity. This design can reduce the weight of the limit ring and thus improve the lightweight of the engine. The lower positioning groove on the side of the lower limit ring and the upper positioning groove on the side of the upper limit ring can be used for quick positioning and installation, which is convenient, fast and improves self-adaptability.

[0014] This elastic positioning device for a car engine limiting ring prevents the central transverse fixing ring from wobbling significantly by using vertical rubber rings on the sides of the vertical fixing ring, thereby improving stability. The transverse rubber rings placed on the upper and lower sides of the transverse fixing ring further reduce wear caused by friction with other components, thus further improving the service life of the device. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram showing the disassembled main body of this utility model;

[0017] Figure 3 This is a front sectional view of the present invention;

[0018] Figure 4 This is an explosion diagram of the elastic mechanism of this utility model.

[0019] In the diagram: 1. Lower limit ring; 101. Lower annular groove; 102. Lower extension ring block; 11. Lower positioning groove; 2. Upper limit ring; 201. Upper annular groove; 202. Upper extension ring block; 21. Upper friction texture; 22. Upper positioning groove; 3. Elastic mechanism; 31. Outer elastic element; 311. Vertical rubber ring; 312. Vertical fixing ring; 32. Inner elastic element; 321. Lateral fixing ring; 322. Lateral rubber ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 One embodiment provided by this utility model:

[0022] An elastic positioning device for a limit ring of an automobile engine includes a lower limit ring 1 and an upper limit ring 2. The device is characterized in that: the bottom end of an elastic mechanism 3 is placed inside the top end of the lower limit ring 1, the top end of the elastic mechanism 3 is placed at the bottom end of the upper limit ring 2, the top end of the lower limit ring 1 is fixed to the bottom end of the upper limit ring 2, and the elastic mechanism 3 includes an outer elastic element 31 and an inner elastic element 32, with the inner elastic element 32 disposed at the center of the inner side of the outer elastic element 31.

[0023] As a further feature of this invention, the lower limiting ring 1 has multiple sets of lower positioning grooves 11 on its side, with the same spacing between the multiple sets of lower positioning grooves 11. The lower limiting ring 1 has a lower annular groove 101 at the top center facing downwards, and a lower extension ring block 102 is fixedly provided on the inner side of the lower annular groove 101. The bottom end of the elastic mechanism 3 is placed in the lower annular groove 101, which is beneficial for placing the elastic mechanism and facilitating installation.

[0024] Furthermore, the upper limit ring 2 has an upper friction texture 21 at its top, and upper positioning grooves 22 are evenly spaced on the sides of the upper limit ring 2. The bottom side of the upper positioning grooves 22 is vertically connected to the lower positioning grooves 11. An upper annular groove 201 is opened inward from the center of the bottom end of the upper limit ring 2. An upper extension ring block 202 is fixed downward on the inner side of the upper annular groove 201. The top of the elastic mechanism 3 is clamped on the inner wall of the upper annular groove 201, which helps to reduce the weight of the limit ring and thus improve the lightweight of the engine.

[0025] As a further improvement of this utility model, the external elastic element 31 includes a vertical rubber ring 311 and a vertical fixing ring 312. The vertical rubber ring 311 is attached to the inner wall of the connection between the lower annular groove 101 of the lower limiting ring 1 and the upper annular groove 201 of the upper limiting ring 2. The vertical fixing ring 312 is attached to the inside of the vertical rubber ring 311. The internal elastic element 32 includes a transverse fixing ring 321 and a transverse rubber ring 322. The side of the transverse fixing ring 321 is fixed to the center inner wall of the vertical fixing ring 312. Transverse rubber rings 322 are placed on the upper and lower walls of the transverse fixing ring 321. The two sets of transverse rubber rings 322 are attached to the inner sides of the lower extension ring block 102 and the upper extension ring block 202, respectively, which helps to reduce the wear caused by friction of other components and further improve the service life of the device.

[0026] Working principle: In use, the user first attaches the bottom edge of the vertical rubber ring 311 to the bottom side of the inner wall of the lower annular groove 101 inside the lower limit ring 1. Then, a set of transverse rubber pads 322 are placed on the upper side of the lower extension ring block 102 in the lower limit ring 1. Then, the bottom side of the transverse fixing ring 321 in the center of the vertical fixing ring 312 is placed on the bottom side of the transverse rubber ring 322. Then, another set of transverse rubber rings 322 are placed on the upper side of the transverse fixing ring 321. Then, the upper extension ring block 202 at the bottom of the upper limit ring 2 is snapped onto the upper side of the transverse fixing ring 321. Then, the upper positioning groove 22 on the side of the upper limit ring 2 is aligned with the lower annular groove 101 on the side of the lower limit ring 1 and welded. Finally, it is installed on the engine for use. The above is the complete working principle of this utility model.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An elastic positioning device for a limiting ring of an automobile engine, comprising a lower limiting ring (1) and an upper limiting ring (2), characterized in that: The bottom end of the elastic mechanism (3) is placed inside the top end of the lower limit ring (1), and the top end of the elastic mechanism (3) is placed at the bottom end of the upper limit ring (2). The top end of the lower limit ring (1) is fixed to the bottom end of the upper limit ring (2). The elastic mechanism (3) includes an outer elastic element (31) and an inner elastic element (32). The inner elastic element (32) is provided at the center of the outer elastic element (31).

2. The elastic positioning device for an automobile engine limiting ring according to claim 1, characterized in that: The lower limiting ring (1) has multiple sets of lower positioning grooves (11) on its side, and the spacing between the multiple sets of lower positioning grooves (11) is the same.

3. The elastic positioning device for an automobile engine limiting ring according to claim 1, characterized in that: The lower limiting ring (1) has a downward-facing annular groove (101) at the top center. A lower extension ring block (102) is fixed inside the lower annular groove (101). The bottom end of the elastic mechanism (3) is placed inside the lower annular groove (101).

4. The elastic positioning device for an automobile engine limiting ring according to claim 1, characterized in that: The upper limit ring (2) has an upper friction texture (21) at its top end, and upper positioning grooves (22) are evenly spaced on the sides of the upper limit ring (2). The bottom side of the upper positioning grooves (22) is vertically connected to the lower positioning grooves (11).

5. The elastic positioning device for an automobile engine limiting ring according to claim 1, characterized in that: The upper annular groove (201) is opened inward at the bottom center of the upper limit ring (2), and the upper extension ring block (202) is fixed downward on the inner side of the upper annular groove (201). The top end of the elastic mechanism (3) is clamped on the inner wall of the upper annular groove (201).

6. The elastic positioning device for an automobile engine limiting ring according to claim 1, characterized in that: The external elastic element (31) includes a vertical rubber ring (311) and a vertical fixing ring (312). The vertical rubber ring (311) is attached to the inner wall of the connection between the lower annular groove (101) of the lower limiting ring (1) and the upper annular groove (201) of the upper limiting ring (2). The vertical fixing ring (312) is attached to the inside of the vertical rubber ring (311).

7. The elastic positioning device for an automobile engine limiting ring according to claim 1, characterized in that: The internal elastic element (32) includes a transverse fixing ring (321) and a transverse rubber ring (322). The side of the transverse fixing ring (321) is fixed to the central inner wall of the vertical fixing ring (312). The upper and lower walls of the transverse fixing ring (321) are each provided with a transverse rubber ring (322). The two sets of transverse rubber rings (322) are respectively attached to the inner sides of the lower extension ring block (102) and the upper extension ring block (202).

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