Automobile cylinder sleeve convenient to replace and install

Abstract

The utility model discloses an automobile cylinder sleeve convenient to replace and install, and belongs to the technical field of automobile cylinder sleeves, the automobile cylinder sleeve comprises two outer sleeve bodies, an inner sleeve body and a connecting sleeve, the inner sleeve body is abutted between the two outer sleeve bodies, convex rings are arranged at the ends, close to each other, of the two outer sleeve bodies, and the connecting sleeve is connected with the outer sleeve bodies. The connecting sleeve is connected between the two convex rings in a sleeving mode, annular grooves matched with the convex rings are formed in the sides, close to each other, of the two convex rings, a plurality of annularly-distributed positioning grooves are formed in the inner walls of the annular grooves, a plurality of annularly-distributed cavities are formed in the connecting sleeve, and studs are rotationally connected into the cavities; one end of the stud is fixedly connected with a nut, the stud is in threaded connection with a connecting block, and one side of the connecting block is fixedly connected with two positioning blocks which are distributed at an interval; and through the arrangement of the connecting sleeve, after the inner sleeve body is abraded, the two outer sleeve bodies can be detached, the inner sleeve body can be conveniently taken out to be independently replaced, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile cylinder liner, specifically relates to an automobile cylinder liner convenient to replace and install. BACKGROUND

[0002] The automobile cylinder liner is the abbreviation of the engine cylinder liner, is inlayed in the cylinder barrel of the cylinder body, and is used for forming the combustion chamber with the piston and the cylinder cover. The cylinder liner is divided into two categories of dry cylinder liner and wet cylinder liner. The cylinder liner without contacting the cooling water on the back is called the dry cylinder liner, and the cylinder liner contacting the cooling water on the back is called the wet cylinder liner. The dry cylinder liner is thin, simple in structure and convenient to process. The wet cylinder liner directly contacts the cooling water, so it is beneficial to the cooling of the engine and the miniaturization and light weight of the engine.

[0003] At present, in order to improve the wear resistance of the inner wall of the cylinder liner, a layer of inner sleeve made of wear-resistant ceramic material is usually arranged in the cylinder liner, and the wear resistance of the inner wall of the cylinder liner is improved through the ceramic inner sleeve. For example, the ceramic cylinder liner disclosed in Chinese patent No. CN214035896U improves the wear resistance of the inner wall of the cylinder liner through the inner sleeve made of composite zirconia ceramic. However, when the inner sleeve is worn, the inner sleeve cannot be disassembled, so that the entire cylinder liner cannot be continuously used, thereby increasing the use cost of the cylinder liner. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing an automobile cylinder liner convenient to replace and install to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automobile cylinder liner convenient to replace and install, comprising an outer sleeve body, an inner sleeve body and a connecting sleeve, the outer sleeve body is two, the inner sleeve body is abutted between the two outer sleeve bodies, the two outer sleeve bodies are provided with convex rings at one end close to each other, and the connecting sleeve is sleeved between the two convex rings.

[0006] The side close to each other of the two convex rings is provided with an annular groove matched with the convex ring, the inner wall of the annular groove is provided with a plurality of annularly distributed positioning grooves, the inside of the connecting sleeve is provided with a plurality of annularly distributed cavities, the inside of the cavity is rotationally connected with a stud, one end of the stud is fixedly connected with a nut, the stud is threadedly connected with a connecting block, and the side of the connecting block is fixedly connected with two spaced positioning blocks.

[0007] As a preferred embodiment, the inner sleeve body is made of wear-resistant ceramic material.

[0008] As a preferred embodiment, the two outer sleeve bodies are provided with limiting parts at one end away from each other, and the two ends of the inner sleeve body are abutted in the limiting parts.

[0009] As a preferred implementation form, a groove is formed on the outer circumference of the connecting sleeve, and the screw cap is arranged in the groove.

[0010] As a preferred implementation form, an end cover is arranged at the opening of the groove.

[0011] As a preferred implementation form, a guide strip is arranged on the inner wall of the cavity, and the two sides of the connecting block are in sliding connection with the guide strip.

[0012] Compared with the prior art, the automobile cylinder sleeve has the following beneficial effects:

[0013] The automobile cylinder sleeve is convenient to replace and install, and has the following beneficial effects: when the cylinder sleeve is assembled, the two outer sleeve bodies are sleeved on the two ends of the inner sleeve body, and the connecting sleeve is arranged between the two outer sleeve bodies; when the limiting portions of the outer sleeve bodies abut against the two ends of the inner sleeve body, the connecting sleeve is embedded into the annular groove formed between the two convex rings; then a tool is used to rotate the screw cap, so that the screw cap drives the stud to rotate, the stud drives the connecting block to slide, and the connecting block drives the positioning block to be inserted into the positioning groove, thereby connecting and fixing the two outer sleeve bodies; when the inner sleeve body is worn, the screw cap is reversely rotated, so that the positioning block is moved out of the positioning groove, the two outer sleeve bodies are separated, and then the inner sleeve body can be taken out and replaced alone, thereby reducing the use cost.

[0014] The automobile cylinder sleeve is convenient to replace and install, and has the following beneficial effects: the groove and the end cover are arranged to protect the screw cap. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross section structure of the utility model;

[0017] Figure 3 It is the utility model Figure 2 It is an enlarged view of the structure at A in the utility model.

[0018] In the drawing: 1, outer sleeve body; 11, convex ring; 12, annular groove; 13, positioning groove; 14, limiting portion; 2, inner sleeve body; 3, connecting sleeve; 31, stud; 32, screw cap; 33, connecting block; 34, positioning block; 35, groove; 36, end cover; 37, guide strip. DETAILED DESCRIPTION

[0019] The utility model will be further described in combination with examples.

[0020] The following examples are used to illustrate the present application, but cannot be used to limit the protection scope of the present application. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements of the method of the present application under the concept of the present application all belong to the protection scope of the present application.

[0021] Please refer to Figures 1-3 The utility model provides a convenient to replace installation's automobile cylinder liner, including sheath body 1, inner sleeve 2 and connecting sleeve 3, sheath body 1 has two, inner sleeve 2 is abutted between two sheath body 1, and inner sleeve 2 is made of wear -resistant ceramic material, through the setting of inner sleeve 2, can enhance the wear resistance of cylinder liner inner wall, two sheath body 1 mutually far away one end all is provided with the limiting portion 14, and the both ends of inner sleeve 2 are all abutted in limiting portion 14, through the setting of limiting portion 14, can play the limiting action to the both ends of inner sleeve 2.

[0022] Two sheath body 1 mutually close one end all is provided with the convex ring 11, and connecting sleeve 3 is sleeved between two convex rings 11, and two convex rings 11 mutually close one side all is seted up with the annular groove 12 of being suitable for with convex ring 11, and the inner wall of annular groove 12 is seted up with multiple annular distribution's locating slot 13, and the inside of connecting sleeve 3 is seted up with multiple annular distribution's cavity, and the inside rotation is connected with stud 31 in cavity, and one end fixed connection has nut 32 in stud 31, and the threaded connection has connecting block 33 on stud 31, and the inner wall on cavity is provided with guide strip 37, and the both sides of connecting block 33 are all with guide strip 37 sliding connection, and one side fixed connection has two interval distribution's locating block 34 in connecting block 33, through the setting of connecting sleeve 3, when assembling cylinder liner, two sheath body 1 is respectively from the both ends of inner sleeve 2 and is inserted, and connecting sleeve 3 is placed between two sheath body 1, when the limiting portion 14 of sheath body 1 and the both ends of inner sleeve 2 abut, connecting sleeve 3 just embeds into the annular groove 12 formed between two convex rings 11, then can use the tool to rotate nut 32, make nut 32 drive stud 31 rotate, make stud 31 drive connecting block 33 slide, make connecting block 33 drive locating block 34 insert locating slot 13, and two sheath body 1 can be connected and fixed, when inner sleeve 2 wears, can reverse rotation nut 32, make locating block 34 move from locating slot 13, can split two sheath body 1, and then can take out inner sleeve 2 and replace separately, reduce use cost.

[0023] Among them, recess 35 is seted up on the outer circumference of connecting sleeve 3, and nut 32 is arranged in recess 35, and end cover 36 is arranged at the opening of recess 35, through the setting of recess 35 and end cover 36, can play the protection action to nut 32.

[0024] The working principle and use process of the utility model: first, when assembling the cylinder liner, two outer sleeve bodies 1 are respectively sleeved from both ends of the inner sleeve body 2, and the connecting sleeve 3 is arranged between the two outer sleeve bodies 1; when the limiting portions 14 of the outer sleeve bodies 1 abut against both ends of the inner sleeve body 2, the connecting sleeve 3 is just embedded into the annular groove 12 formed between the two convex rings 11; then a tool can be used to rotate the nut 32, so that the nut 32 drives the stud 31 to rotate, the stud 31 drives the connecting block 33 to slide, the connecting block 33 drives the positioning block 34 to insert into the positioning groove 13, and the two outer sleeve bodies 1 can be connected and fixed; when the inner sleeve body 2 is worn, the nut 32 can be reversely rotated, so that the positioning block 34 is moved out of the positioning groove 13, the two outer sleeve bodies 1 can be disassembled, and then the inner sleeve body 2 can be taken out and replaced alone, thereby reducing the use cost.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A replaceable automotive cylinder liner which is easy to mount, comprising an outer liner body (1), an inner liner body (2) and a connecting sleeve (3), characterized in that: The outer sleeve (1) has two, the inner sleeve (2) abuts between the two outer sleeves (1), and the two outer sleeves (1) are provided with convex rings (11) at one end close to each other. The two convex rings (11) are provided with annular grooves (12) on the side close to each other, the inner wall of the annular groove (12) is provided with a plurality of annularly distributed positioning grooves (13), the inside of the connecting sleeve (3) is provided with a plurality of annularly distributed cavities, the inside of the cavity is rotatably connected with a stud (31), one end of the stud (31) is fixedly connected with a nut (32), the stud (31) is threadedly connected with a connecting block (33), and the connecting block (33) is fixedly connected with two spaced apart positioning blocks (34) on one side.

2. The replaceable automotive cylinder liner of claim 1, wherein: The inner sleeve (2) is made of wear-resistant ceramic material.

3. The replaceable automotive cylinder liner of claim 1, wherein: The two outer sleeves (1) are provided with limiting portions (14) at one end away from each other, and the two ends of the inner sleeve (2) abut in the limiting portions (14).

4. The replaceable automotive cylinder liner of claim 1, wherein: The outer circumference of the connecting sleeve (3) is provided with a groove (35), and the nut (32) is arranged in the groove (35).

5. The replaceable automotive cylinder liner of claim 4, wherein: The opening of the groove (35) is provided with an end cover (36).

6. The replaceable automotive cylinder liner of claim 1, wherein: The inner wall of the cavity is provided with a guide strip (37), and the two sides of the connecting block (33) are slidably connected with the guide strip (37).

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