Combined four-stroke gasoline engine box body

Abstract

The combined type four-stroke gasoline engine box comprises a four-stroke gasoline engine body, the four-stroke gasoline engine body comprises a base, an output bin, an oil tank, an ignition bin and an instrument bin, the output bin is integrally formed at the top of the base, mounting holes are formed in the four corners of the base, and internal thread rings are fixedly mounted on the bottom sides of the inner side walls of the mounting holes; the bottom of the oil tank, the bottom of the ignition bin and the bottom of the instrument bin are fixedly provided with connecting plates, the bottoms of the oil tank, the ignition bin and the instrument bin are provided with transverse plates, the transverse plates are provided with bolt holes, and the bolt holes are matched with mounting holes in the base in position; bolts can penetrate through the bolt holes and the mounting holes to be screwed in the threaded grooves in the mounting positions, so that the base and the mounting positions, the base and an oil tank, an ignition bin, an instrument bin and other structures can be assembled at the same time through a single set of bolts, the assembling time can be greatly shortened, the mounting efficiency is improved, and practicability is high.

Description

Technical Field

[0001] This patent relates to the technical field of four-stroke gasoline engine cases, specifically a combined four-stroke gasoline engine case body. Background Art

[0002] With the advancement of urbanization and the widespread use of agricultural machinery automation, the demand for small gasoline engines is gradually increasing. By 2020, the production of small gasoline engines exceeded 50 million units. Among them, high-power small four-stroke gasoline engines have been widely recognized for their excellent performance and low emissions of gases such as nitrogen oxides and carbon monoxide. The usage of high-power small four-stroke gasoline engine cases has also increased relatively. The casting of gasoline engine cases is somewhat difficult due to their complex structures. Therefore, there are common technical problems in heat dissipation, gasoline recycling, and production and processing in the current market cases. This project studies high-power small four-stroke cases in terms of production and processing, heat dissipation, and comprehensive resource utilization, aiming to improve the performance and environmental protection performance of existing cases, increase production efficiency, and promote industrialization, so as to promote the overall technological improvement of the small gasoline engine case industry.

[0003] The existing four-stroke gasoline engine case consists of a base, an output chamber, a fuel tank, and an ignition chamber. The output chamber and the base are an integral structure. The fuel tank and the ignition chamber need to be fixed on the base through a connecting plate. However, when fixing the overall gasoline engine, bolts are still required to fix the base and the installation position. Multiple groups of bolts are needed for separate fixing. When a large number of gasoline engines need to be assembled and fixed, the assembly time will increase and the installation efficiency will decrease. For this reason, we propose a combined four-stroke gasoline engine case body. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of this patent is to provide a combined four-stroke gasoline engine case body. In this patent, connecting plates are installed at the bottoms of the fuel tank, the ignition chamber, and the instrument chamber. A cross plate is installed at the bottom of the connecting plate. Bolt holes are provided on the cross plate, and the positions of the bolt holes match the installation holes on the base. By screwing bolts through the bolt holes and the installation holes into the threaded grooves at the installation positions, the structures such as the base and the installation position, the base and the fuel tank, and the ignition chamber and the instrument chamber can be assembled simultaneously with a single group of bolts, which can greatly shorten the assembly time and improve the installation efficiency, and has strong practicability.

[0005] The technical solution adopted by this patent to solve its technical problems is as follows: A combined four-stroke gasoline engine box body, including a four-stroke gasoline engine body. The four-stroke gasoline engine body includes a base, an output chamber, a fuel tank, an ignition chamber, and an instrument chamber. The output chamber is integrally formed on the top of the base. Mounting holes are provided at the four corners of the base. An internal thread ring is fixedly installed on the bottom side of the inner side wall of the mounting hole. The bottoms of the fuel tank, the ignition chamber, and the instrument chamber are all fixedly installed with connecting plates. A cross plate is integrally formed at the bottom end of the connecting plate. A bolt hole is provided at the top of the cross plate. The bolt hole is directly above the mounting hole. Rectangular grooves are provided at the left and right ends of the inner side wall of the bolt hole. A bolt is provided in the bolt hole. The bottom end of the bolt is screwed into the internal thread ring.

[0006] Further, the bolt includes a round plate. A column is integrally formed at the bottom of the round plate. A round hole is provided in the middle of the column. A circular groove is provided at the top of the round plate. An annular groove is provided on the inner side wall of the circular groove. A rotating plate is provided in the circular groove. An annular ring is integrally formed on the side wall of the rotating plate. The annular ring is rotatably installed in the annular groove. A rotating rod is integrally formed at the bottom of the rotating plate. The bottom end of the rotating rod passes through the round hole and is integrally formed with a threaded column. The threaded column is screwed into the internal thread ring. Pressing blocks are integrally formed at the front and rear ends of the outer side wall of the column. The bottom of the pressing block is closely attached to the top of the cross plate.

[0007] Further, the side wall of the rotating rod does not contact the inner side wall of the round hole.

[0008] Further, a cross groove is provided at the top of the rotating plate.

[0009] Further, a square groove is provided at the top of the base. A square column is integrally formed at the bottom of the cross plate. The square column is inserted into the square groove.

[0010] Further, a tapered surface is provided at the bottom end of the square column.

[0011] The beneficial effects of this patent are as follows:

[0012] 1. In this patent, connecting plates are installed at the bottoms of the fuel tank, the ignition chamber, and the instrument chamber. A cross plate is installed at the bottom of the connecting plate. A bolt hole is provided on the cross plate. The bolt hole matches the position of the mounting hole on the base. The bolt can pass through the bolt hole and the mounting hole and be screwed into the threaded groove at the mounting position. Thus, a single set of bolts can be used to assemble the base and the mounting position, the base and the fuel tank, the ignition chamber, and the instrument chamber and other structures at the same time, which can greatly shorten the assembly time, improve the installation efficiency, and has strong practicability. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of this patent.

[0014] Figure 2It is a schematic diagram of a partial structure of this patent.

[0015] Figure 3 It is a schematic diagram of a bolt of this patent.

[0016] Explanation of reference numerals in the drawings: 1 Four-stroke gasoline engine body, 2 Base, 3 Output chamber, 4 Fuel tank, 5 Ignition chamber, 6 Instrument chamber, 7 Connecting plate, 8 Horizontal plate, 9 Mounting hole, 10 Internal thread ring, 11 Bolt hole, 12 Rectangular groove, 13 Bolt, 14 Circular plate, 15 Column, 16 Circular hole, 17 Circular groove, 18 Ring groove, 19 Rotating plate, 20 Ring, 21 Rotating rod, 22 Threaded column, 23 Pressing block, 24 Cross groove, 25 Square groove, 26 Square column, 27 Tapered surface. Specific embodiments

[0017] The following will further elaborate on this patent in combination with specific embodiments. It should be understood that these embodiments are only used to illustrate this patent and not to limit the scope of this patent. In addition, it should be understood that after reading the content taught in this patent, those skilled in the art can make various changes or modifications to this patent, and these equivalent forms also fall within the scope defined by the appended claims of the application.

[0018] See Figure 1 、 Figure 2 and Figure 3 are schematic diagrams of the structure of this patent. A combined four-stroke gasoline engine box body includes a four-stroke gasoline engine body 1. The four-stroke gasoline engine body 1 includes a base 2, an output chamber 3, a fuel tank 4, an ignition chamber 5, and an instrument chamber 6. The output chamber 3 is integrally formed on the top of the base 2. Mounting holes 9 are provided at the four corners of the base 2. An internal thread ring 10 is fixedly installed on the bottom side of the inner side wall of the mounting hole 9. Connecting plates 7 are fixedly installed at the bottoms of the fuel tank 4, the ignition chamber 5, and the instrument chamber 6. A horizontal plate 8 is integrally formed at the bottom end of the connecting plate 7. A bolt hole 11 is provided at the top of the horizontal plate 8. The bolt hole 11 is located directly above the mounting hole 9. Rectangular grooves 12 are provided at the left and right ends of the inner side wall of the bolt hole 11. A bolt 13 is provided in the bolt hole 11. The bottom end of the bolt 13 is screwed into the internal thread ring 10.

[0019] Two connecting plates 7 are provided at the bottom of the fuel tank 4, and one connecting plate 7 is provided at the bottom of each of the ignition chamber 5 and the instrument chamber 6. The horizontal plates 8 on the four connecting plates 7 respectively correspond to the four corners of the base 2.

[0020] Specifically, the bolt 13 includes a circular plate 14. A column 15 is integrally formed at the bottom of the circular plate 14. A circular hole 16 is provided in the middle of the column 15. A circular groove 17 is provided at the top of the circular plate 14. An annular groove 18 is provided on the inner side wall of the circular groove 17. A rotating plate 19 is provided in the circular groove 17. An annular ring 20 is integrally formed on the side wall of the rotating plate 19. The annular ring 20 is rotatably installed in the annular groove 18. A rotating rod 21 is integrally formed at the bottom of the rotating plate 19. The bottom end of the rotating rod 21 passes through the circular hole 16 and is integrally formed with a threaded column 22. The threaded column 22 is screwed into the internal thread ring 10. Pressing blocks 23 are integrally formed at both the front and rear ends of the outer side wall of the column 15. The bottom of the pressing block 23 is closely attached to the top of the cross plate 8.

[0021] In the figure, the bolt 13 is in a fixed state. At this time, it is the state where the cross plate 8 and the base 2 are connected and fixed by the bolt 13.

[0022] Specifically, the side wall of the rotating rod 21 does not contact the inner side wall of the circular hole 16.

[0023] By the side wall of the rotating rod 21 not contacting the inner side wall of the circular hole 16, it is possible to avoid the frictional resistance caused by the side wall of the rotating rod 21 contacting the inner side wall of the circular hole 16 when the rotating rod 21 rotates.

[0024] Specifically, a cross groove 24 is provided at the top of the rotating plate 19.

[0025] A cross screwdriver can be inserted into the cross groove 24 to facilitate the rotation of the rotating plate 19.

[0026] Specifically, a square groove 25 is provided at the top of the base 2. A square column 26 is integrally formed at the bottom of the cross plate 8. The square column 26 is inserted into the square groove 25.

[0027] By inserting the square column 26 into the square groove 25, it is used to define the installation positions of the cross plate 8 and the base 2.

[0028] Specifically, a tapered surface 27 is provided at the bottom end of the square column 26.

[0029] The setting of the tapered surface 27 can reduce the resistance at the bottom end of the square column 26 and facilitate the insertion of the square column 26 into the square groove 25.

[0030] Working principle: When assembling the base 2 with the installation position ( Figure 2 the lower side structure of the base 2 in the figure), the rotating plate 19 can be rotated. While driving the threaded column 22 to rotate, the rotating rod 21 moves upward, so that the pressing block 23 no longer contacts the top of the cross plate 8. Then rotate the circular plate 14 so that the two pressing blocks 23 are respectively corresponding to the upper side of the rectangular groove 12. Then rotate the rotating plate 19 so that it drives the threaded column 22 to move downward through the rotating rod 21. The pressing block 23 enters the rectangular groove 12 until the threaded column 22 is screwed into the threaded groove at the installation position. At the same time, the circular plate 14 presses tightly on the top of the cross plate 8. At this time, the assembly is completed.

[0031] It should be noted that the device structure and drawings of this patent mainly describe the principle of this patent. In terms of the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. On the premise that those skilled in the art understand the principle of the above patent, the specific details of its power mechanism, power supply system and control system can be clearly known.

[0032] In this patent, connecting plates are installed at the bottoms of the fuel tank, ignition chamber and instrument chamber. A cross plate is installed at the bottom of the connecting plate. Bolt holes are provided on the cross plate, and the positions of the bolt holes match the installation holes on the base. Bolts can pass through the bolt holes and installation holes and be screwed into the threaded grooves at the installation positions. In this way, the base and the installation position, the base and the fuel tank, the ignition chamber and the instrument chamber and other structures can be assembled simultaneously by a single set of bolts, which can greatly shorten the assembly time and improve the installation efficiency, and has strong practicability.

[0033] In the description of this patent, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "up", "one side", "top", "inside", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly specified and limited, terms such as "set", "installed", "connected", "fixedly installed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0034] Although the embodiments of this patent have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this patent. The scope of this patent is defined by the appended claims and their equivalents.

Claims

1. A combined four-stroke gasoline engine housing, characterized in that: The invention comprises a four-stroke gasoline engine body (1), the four-stroke gasoline engine body (1) comprising a base (2), an output chamber (3), a fuel tank (4), an ignition chamber (5) and an instrument chamber (6), the output chamber (3) being integrally formed on the top of the base (2), four corners of the base (2) being provided with mounting holes (9), the bottom side of the inner wall of the mounting hole (9) being fixedly mounted with an internal thread ring (10), the bottom of the fuel tank (4), the ignition chamber (5) and the instrument chamber (6) being fixedly mounted with a connecting plate (7), the bottom end of the connecting plate (7) being integrally formed with a horizontal plate (8), the top of the horizontal plate (8) being provided with a bolt hole (11), the bolt hole (11) being located directly above the mounting hole (9), the left and right ends of the inner wall of the bolt hole (11) being provided with a rectangular groove (12), the bolt hole (11) being provided with a bolt (13), the bottom end of the bolt (13) being screwed into the internal thread ring (10).

2. A combined four-stroke gasoline engine housing according to claim 1, characterized in that: The bolt (13) comprises a circular plate (14), a column (15) is integrally formed at the bottom of the circular plate (14), a circular hole (16) is provided in the middle of the column (15), a circular groove (17) is provided at the top of the circular plate (14), an annular groove (18) is provided on the inner side wall of the circular groove (17), a rotating plate (19) is provided in the circular groove (17), a circular ring (20) is integrally formed on the side wall of the rotating plate (19), the circular ring (20) is rotatably mounted in the annular groove (18), a rotating rod (21) is integrally formed at the bottom of the rotating plate (19), a threaded column (22) is integrally formed at the bottom end of the rotating rod (21) passing through the circular hole (16), the threaded column (22) is screwed into the inner threaded ring (10), and a pressing block (23) is integrally formed at both the front and rear ends of the outer side wall of the column (15), and the bottom of the pressing block (23) is tightly fitted on the top of the horizontal plate (8).

3. A combined four-stroke gasoline engine housing according to claim 2, characterized in that: The side wall of the rotating rod (21) does not contact the inner side wall of the circular hole (16).

4. A combined four-stroke gasoline engine case according to claim 2, characterized in that: A cross groove (24) is provided on the top of the rotating plate (19).

5. The combined four-stroke gasoline engine housing according to claim 1, characterized in that: The top of the base (2) is provided with a square groove (25), and the bottom of the horizontal plate (8) is integrally formed with a square column (26), and the square column (26) is inserted into the square groove (25).

6. A combined four-stroke gasoline engine case according to claim 5, characterized in that: The bottom end of the square column (26) is provided with a tapered surface (27).

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