A snap-fit ​​structure for cast iron engine end cover

Abstract

This utility model discloses a snap-fit ​​structure for a cast iron engine end cover, including an engine body. An upper end cover body is mounted on the upper end of the engine body, and a side end cover body is mounted on the side surface of the engine body. Both the upper and side end cover bodies are detachable from the engine body. The upper end cover body includes a sealing top cover, a sealing element, a lower snap-fit ​​plate, and a fixing base. The sealing element and the lower snap-fit ​​plate are fixed together by a snap-fit ​​connection via a slot. Both the sealing top cover and the fixing base are detachable from the lower snap-fit ​​plate. This utility model provides excellent dustproof and waterproof sealing protection by using multi-layer sealing connections at the cast iron engine end cover. Simultaneously, the convenient assembly design of the end cover area facilitates assembly, disassembly, and maintenance, reducing the installation and disassembly costs of the engine end cover while improving the sealing protection of internal engine components.

Description

Technical Field

[0001] This utility model relates to the field of engine end cover technology, specifically a snap-fit ​​structure for a cast iron engine end cover. Background Technology

[0002] The hood (also known as the engine cover) is the most conspicuous body component and one of the parts that car buyers frequently inspect. The main requirements for the hood are heat and sound insulation, lightweight, and high rigidity. Structurally, the hood is generally composed of several parts, with heat insulation material sandwiched in between. The inner panel serves to enhance rigidity, and its geometry is selected by the manufacturer, essentially forming a frame.

[0003] Currently, there are problems with the installation and fixation of engine end covers, such as poor sealing and protection performance and high installation and disassembly costs. Therefore, it is necessary to develop a snap-fit ​​structure for cast iron engine end covers to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide a snap-fit ​​structure for cast iron engine end covers, so as to solve the problems mentioned in the background art, such as poor sealing and protection performance and high installation and disassembly costs when installing and fixing engine end covers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cast iron engine end cover snap-fit ​​structure, comprising an engine body, an upper end cover body mounted on the upper end of the engine body, and a side end cover body mounted on the side surface of the engine body. Both the upper end cover body and the side end cover body are detachable from the engine body. The upper end cover body includes a sealing top cover, a sealing element, a lower snap-fit ​​plate, and a fixing base. The sealing element and the lower snap-fit ​​plate are fixedly connected by a snap-fit ​​groove. Both the sealing top cover and the fixing base are detachable from the lower snap-fit ​​plate.

[0006] Preferably, the sealing element includes an upper sealing chuck, a sealing silicone ring, and a lower sealing chuck. The sealing silicone ring is embedded in the inner surface of the lower buckle plate. The upper sealing chuck is fixedly fitted to the lower end surface of the sealing top cover, and the lower sealing chuck is fixedly fitted to the upper end surface of the lower buckle plate.

[0007] Preferably, the upper sealing chuck and the lower sealing chuck are both aligned and fixed to each other by positioning screws.

[0008] Preferably, the lower end surface of the lower buckle plate is provided with a first retaining ring, and the upper end surface of the fixed base is provided with a second retaining ring, and the first retaining ring and the second retaining ring are sealed and aligned for fixation.

[0009] Preferably, a positioning flange is installed at the lower end of the fixed base, and the fixed base is sealed to the internal pipes of the engine body through the positioning flange.

[0010] Preferably, the side end cover body includes a front shell, a decorative cover, and a rear shell, and the front shell, the decorative cover, and the rear shell are all detachable structures.

[0011] Preferably, the decorative cover is detachably installed on the front end surface of the front housing, a first snap-fit ​​groove is provided at the outer edge of the front housing, and a second snap-fit ​​groove is provided at the corresponding position at the outer edge of the rear housing, and the first snap-fit ​​groove and the second snap-fit ​​groove are connected by screws.

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

[0013] This utility model provides excellent dustproof and waterproof sealing protection by using multi-layer sealing connection and fixation at the end cover of the cast iron engine. At the same time, the end cover is designed for easy assembly, disassembly and maintenance, which reduces the installation and disassembly cost of the engine end cover and improves the sealing and protection of internal engine parts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the exploded disassembly structure of the upper end cover of this utility model.

[0017] Figure 4 This is a partially exploded structural diagram of the present invention.

[0018] In the diagram: 1. Upper end cover body; 2. Side end cover body; 3. Engine body; 4. Sealing top cover; 5. Positioning screw; 6. Lower snap plate; 7. Upper sealing chuck; 8. Sealing silicone ring; 9. Lower sealing chuck; 10. Decorative cover; 11. Front housing; 12. First snap groove; 13. Second snap groove; 14. Rear housing; 15. Second snap ring; 16. Fixed base; 17. Positioning flange; 18. First snap ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figure 1-4The present invention provides an embodiment of a cast iron engine end cover snap-fit ​​structure, comprising an engine body 3, an upper end cover body 1 mounted on the upper end of the engine body 3, and a side end cover body 2 mounted on the side surface of the engine body 3. Both the upper end cover body 1 and the side end cover body 2 are detachable from the engine body 3. The upper end cover body 1 includes a sealing top cover 4, a sealing element, a lower snap plate 6, and a fixing base 16. The sealing element and the lower snap plate 6 are fixedly connected by a snap-fit ​​through a slot. Both the sealing top cover 4 and the fixing base 16 are detachable from the lower snap plate 6.

[0021] Furthermore, the sealing components include an upper sealing chuck 7, a sealing silicone ring 8, and a lower sealing chuck 9. The sealing silicone ring 8 is embedded in the inner wall of the lower snap plate 6. The upper sealing chuck 7 is fixedly attached to the lower surface of the sealing top cover 4, and the lower sealing chuck 9 is fixedly attached to the upper surface of the lower snap plate 6. Both the upper sealing chuck 7 and the lower sealing chuck 9 are aligned and fixed to each other by positioning screws 5. The upper sealing chuck 7 can be quickly connected and aligned with the sealing top cover 4, and the lower sealing chuck 9 can be quickly connected and aligned with the lower snap plate 6. The positioning screws 5 can then quickly connect and fix the sealing top cover 4 and the lower snap plate 6 into a single structure. The sealing silicone ring 8 can further seal and protect the connection points to prevent water seepage and dust ingress.

[0022] Furthermore, a first retaining ring 18 is provided on the lower end surface of the lower buckle plate 6, and a second retaining ring 15 is provided on the upper end surface of the fixed base 16. The first retaining ring 18 and the second retaining ring 15 are sealed and aligned for fixation. By utilizing the retaining ring structure, the lower buckle plate 6 and the fixed base 16 can be quickly aligned and fixed, which has the advantage of good sealing and protection effect.

[0023] Furthermore, a positioning flange 17 is installed at the lower end of the fixed base 16. The fixed base 16 is sealed to the internal pipe of the engine body 3 through the positioning flange 17, which has the advantages of tight and stable connection and convenient and quick assembly and disassembly.

[0024] Furthermore, the side end cover body 2 includes a front housing 11, a decorative cover 10, and a rear housing 14. The front housing 11, the decorative cover 10, and the rear housing 14 are all detachable structures, which can be used to quickly install and remove the side end cover body 2, reducing installation, disassembly, and maintenance costs.

[0025] Furthermore, the decorative cover 10 is detachably installed on the front end surface of the front housing 11. A first snap-fit ​​groove 12 is provided at the outer edge of the front housing 11, and a second snap-fit ​​groove 13 is provided at the corresponding position at the outer edge of the rear housing 14. The first snap-fit ​​groove 12 and the second snap-fit ​​groove 13 are connected by screws, which facilitates quick sealing and positioning between the front housing 11 and the rear housing 14, and has the advantage of easy assembly and disassembly.

[0026] Working principle: In use, an upper end cover body 1 is installed on the upper end of the engine body 3, and a side end cover body 2 is installed on the side surface of the engine body 3. Both the upper end cover body 1 and the side end cover body 2 are detachable from the engine body 3. The upper end cover body 1 includes a sealing top cover 4, a sealing element, a lower retaining plate 6, and a fixing base 16. It can be quickly connected and aligned with the sealing top cover 4 using the upper sealing chuck 7, and with the lower retaining plate 6 using the lower sealing chuck 9. Then, the sealing top cover 4 and the lower retaining plate 6 can be quickly connected and fixed into a whole structure using the positioning screws 5. The sealing silicone ring 8 can further seal and protect the connection parts to prevent water seepage and dust ingress. The lower end surface of the lower retaining plate 6 is provided with a first retaining ring 18, and the upper end surface of the fixing base 16 is provided with a first retaining ring 18. A second retaining ring 15 is provided, and the first retaining ring 18 and the second retaining ring 15 are sealed and aligned for fixation. The retaining ring structure can be used to quickly align and fix the lower buckle plate 6 and the fixed base 16, which has the advantage of good sealing and protection. The lower end of the fixed base 16 is equipped with a positioning flange 17, and the fixed base 16 is sealed and connected to the internal pipes of the engine body 3 through the positioning flange 17. It has the advantages of tight and stable connection, and convenient and quick assembly and disassembly. By using multi-layer sealing connection and fixation at the cast iron engine end cover, it has a good dustproof and waterproof sealing and protection effect. At the same time, the end cover is designed with convenient assembly, which has the advantages of convenient assembly, disassembly and maintenance, which can reduce the installation and disassembly cost of the engine end cover, and at the same time improve the sealing and protection of the internal parts of the engine.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cast iron engine end cover snap structure comprising an engine main body (3), characterized in that, The engine body (3) is equipped with an upper end cover body (1) at its upper end and a side end cover body (2) is installed on the side surface of the engine body (3). The upper end cover body (1) and the side end cover body (2) are both detachable from the engine body (3). The upper end cover body (1) includes a sealing top cover (4), a sealing element, a lower buckle plate (6) and a fixed base (16). The sealing element and the lower buckle plate (6) are fixedly connected by a slot seal. The sealing top cover (4) and the fixed base (16) are both detachable from the lower buckle plate (6).

2. The cast-iron engine end cover buckle structure according to claim 1, characterized in that: The sealing element includes an upper sealing chuck (7), a sealing silicone ring (8), and a lower sealing chuck (9). The sealing silicone ring (8) is embedded in the inner wall of the lower buckle plate (6). The upper sealing chuck (7) is fixed to the lower end surface of the sealing top cover (4), and the lower sealing chuck (9) is fixed to the upper end surface of the lower buckle plate (6).

3. The cast-iron engine end cover buckle structure according to claim 2, characterized in that: The upper sealing chuck (7) and the lower sealing chuck (9) are both fixed to each other by positioning screws (5).

4. The cast iron engine end cover snap-fit ​​structure according to claim 1, characterized in that: The lower end surface of the lower buckle plate (6) is provided with a first retaining ring (18), and the upper end surface of the fixed base (16) is provided with a second retaining ring (15). The first retaining ring (18) and the second retaining ring (15) are sealed and aligned for fixation.

5. The cast iron engine end cover snap-fit ​​structure according to claim 1, characterized in that: The lower end of the fixed base (16) is equipped with a positioning flange (17), and the fixed base (16) is sealed to the internal pipe of the engine body (3) through the positioning flange (17).

6. The snap-fit ​​structure for a cast iron engine end cover according to claim 1, characterized in that: The side end cover body (2) includes a front shell (11), a decorative cover (10) and a rear shell (14), and the front shell (11), the decorative cover (10) and the rear shell (14) are all detachable structures.

7. The cast iron engine end cover snap-fit ​​structure according to claim 6, characterized in that: The decorative cover (10) is detachably installed on the front surface of the front housing (11). A first snap-fit ​​groove (12) is provided at the outer edge of the front housing (11), and a second snap-fit ​​groove (13) is provided at the corresponding position at the outer edge of the rear housing (14). The first snap-fit ​​groove (12) and the second snap-fit ​​groove (13) are connected by screws.

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