Split type water-cooling single-cylinder diesel engine body

By using a locking pin and sealing ring design, the problems of inaccurate water-cooled housing connection and leakage during cleaning are solved, achieving stable coolant flow and convenient cleaning.

CN223814093UActive Publication Date: 2026-01-20JIANGYIN ZENS POWER MACHINERY TECH
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Patent Information

Application Number
CN202422194341.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2026-01-20
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

When disassembling and cleaning a traditional split-type water-cooled single-cylinder diesel engine, the water-cooling pipe ports on the upper part of the water-cooled housing may not align properly, affecting the coolant flow path, increasing the risk of leakage, and coolant may leak during the cleaning process.

Method used

The design employs a locking pin and sealing ring to ensure that the water cooling pipe inlet is aligned and connected with the through hole of the water cooling box, and is fixed by a locking rod and a threaded rod, combined with a sealing connection plate to prevent leakage; the sealing connection plate can be removed during cleaning to prevent liquid leakage.

Benefits of technology

It effectively avoids the risk of leakage in the coolant flow path, reduces pipe shaking caused by vibration, ensures stable coolant flow, facilitates cleaning of the water-cooled tank, and prevents coolant leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a split type water cooling single cylinder diesel engine body which comprises a single cylinder diesel engine assembly and a split type water cooling assembly, the single cylinder diesel engine assembly comprises a water cooling pipe orifice, the water cooling pipe orifice is fixedly installed at the upper end of the single cylinder diesel engine assembly, and a clamping bolt positioning pin is installed at the outer side end of the water cooling pipe orifice. The clamping bolt positioning pins are inserted and connected into the positioning pin grooves of the water-cooling box body, through holes and the positioning pin grooves are formed in the lower end of the interior of the water-cooling box body, and water-cooling pipe openings are connected into the through holes in a clamped mode. The through hole in the lower end of the water-cooling box body is aligned with the water-cooling pipe orifice, so that the risk of leakage increase caused by influence on the flowing path of cooling liquid is avoided, meanwhile, shaking of the water-cooling pipe orifice caused by vibration generated during operation of the single-cylinder diesel assembly is avoided, leakage of water-cooling liquid is avoided, and the service life of the single-cylinder diesel assembly is prolonged. And the water cooling pipe orifice and the through hole in the lower end of the water cooling box body can be blocked through the sealing ring, so that water cooling liquid is prevented from leaking and flowing out.
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Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically to a split-type water-cooled single-cylinder diesel engine body. Background Technology

[0002] In the field of split-type water-cooled single-cylinder diesel engine blocks, the main focus during operation is on their structural characteristics, cooling efficiency, and environmental performance. Split-type water-cooled single-cylinder diesel engine blocks have significant structural and functional advantages. Traditional single-cylinder water-cooled diesel engines mostly use integral sand casting. Although this method is simple, the casting quality is difficult to guarantee, and defects such as cold shuts and shrinkage cavities are prone to occur. The water cooling system usually consists of a water pump, radiator, fan, and thermostat.

[0003] Currently, with the split-type water-cooled single-cylinder diesel engine, dirt will accumulate inside the split-type water-cooling housing during frequent operation, requiring regular cleaning by staff. When the split-type water-cooled single-cylinder diesel engine is disassembled and cleaned, during the reinstallation process, the water-cooling pipe port on the upper part of the split-type water-cooling housing may not be aligned with the water-cooling port on the lower part of the single-cylinder diesel engine, which may directly affect the flow path of the coolant and increase the risk of leakage. Utility Model Content

[0004] The purpose of this invention is to provide a split-type water-cooled single-cylinder diesel engine block to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a split-type water-cooled single-cylinder diesel engine block, comprising a single-cylinder diesel engine assembly and a split-type water-cooling assembly, characterized in that: the single-cylinder diesel engine assembly includes a water cooling pipe port, the water cooling pipe port is fixedly installed at the upper end of the single-cylinder diesel engine assembly, a locking pin is installed at the outer end of the water cooling pipe port, the locking pin is inserted into the positioning pin groove of the water-cooling box, a through hole and a positioning pin groove are opened at the lower end of the interior of the water-cooling box, and the water cooling pipe port is engaged with the interior of the through hole.

[0006] As a further preferred embodiment of this technical solution, a sealing ring is fixedly installed at the lower end of the water cooling pipe opening, and the sealing ring is connected to the lower end of the water cooling box by bolts.

[0007] As a further preferred embodiment of this technical solution, the upper end of the single-cylinder diesel engine assembly is fixedly mounted with a first fixing bracket and a second fixing bracket, and the first fixing bracket and the second fixing bracket have slots inside.

[0008] As a further preferred embodiment of this technical solution, the slot is internally connected with a first locking rod and a second locking rod. The upper ends of the first locking rod and the second locking rod are bolted to the lower end of the water-cooled box body, and the first locking rod and the second locking rod are fixed by threaded rods.

[0009] As a further preferred embodiment of this technical solution, a second sealing connecting plate is fixedly installed on both sides of the water-cooled box, and the second sealing connecting plate connects and fixes the first sealing connecting plate through connecting bolts.

[0010] As a further preferred embodiment of this technical solution, the first sealing connection plate is fixedly installed on both sides of the water-cooled cover plate, and an inlet pipe is installed on the upper end of the water-cooled cover plate, with a twist cap rotatably connected to the upper end of the inlet pipe.

[0011] As a further preferred embodiment of this technical solution, a fixed base plate is fixedly installed at the lower end of the single-cylinder diesel engine assembly.

[0012] This utility model provides a split-type water-cooled single-cylinder diesel engine block, which has the following beneficial effects:

[0013] (1) The installer aligns the lower end through hole of the water-cooled box with the water cooling pipe port, and inserts the positioning pin of the water cooling pipe port into the positioning pin groove of the water-cooled box. This can effectively connect and align the water cooling pipe port into the lower end through hole of the water-cooled box. The positioning pin can effectively align the lower end through hole of the water-cooled box with the water cooling pipe port by inserting the positioning pin into the positioning pin groove. This avoids affecting the flow path of the coolant and increasing the risk of leakage. At the same time, it avoids the vibration generated by the single-cylinder diesel engine components during operation, which may cause the water cooling pipe port to shake and prevent water cooling liquid from leaking. The sealing ring can seal the position of the water cooling pipe port and the lower end through hole of the water-cooled box to prevent water cooling liquid from leaking out.

[0014] (2) By disassembling the connecting bolts of the first sealing connecting plates on both sides of the water-cooled cover plate, the water-cooled cover plate is further separated from the upper end of the water-cooled box. After that, it is convenient to manually clean the dirt left by the internal cooling of the water-cooled box. The first sealing connecting plate and the second sealing connecting plate are tightly connected and fixed to prevent the internal cooling liquid of the water-cooled box from leaking out. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the fixing frame and water cooling pipe structure of this utility model;

[0017] Figure 3This is a schematic diagram of the sealing ring and threaded rod structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning pin groove and through hole structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the sealing connecting plate and connecting bolt structure of this utility model;

[0020] In the diagram: 100, Single-cylinder diesel engine assembly; 101, Fixed base plate; 200, Split-type water-cooled assembly; 201, Water-cooled housing; 202, Water-cooled cover plate; 203, Twisted cap; 204, Inlet pipe; 205, Locating pin; 206, Water cooling pipe inlet; 207, First fixing bracket; 208, Second fixing bracket; 209, Slot; 211, Sealing ring; 212, Threaded rod; 213, Locating pin groove; 214, Through hole; 215, First locking rod; 216, Second locking rod; 300, First sealing connecting plate; 301, Second sealing connecting plate; 302, Connecting bolt. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1-2 , Figure 4 As shown, in this embodiment, a split-type water-cooled single-cylinder diesel engine block includes a single-cylinder diesel engine assembly 100 and a split-type water-cooling assembly 200. The single-cylinder diesel engine assembly 100 includes a water cooling port 206, which is fixedly installed on the upper end of the single-cylinder diesel engine assembly 100. A locking pin 205 is installed on the outer end of the water cooling port 206. The locking pin 205 is inserted into the positioning pin groove 213 of the water-cooled housing 201. A through hole 214 and a positioning pin groove 213 are opened at the lower end of the interior of the water-cooled housing 201. The water cooling port 206 is engaged and connected inside the through hole 214.

[0023] like Figure 1-3 , Figure 5 As shown, a sealing ring 211 is fixedly installed at the lower end of the water cooling pipe port 206. The sealing ring 211 is connected to the lower end of the water cooling box 201 by bolts. A first fixing bracket 207 and a second fixing bracket 208 are fixedly installed at the upper end of the single-cylinder diesel engine assembly 100. The first fixing bracket 207 and the second fixing bracket 208 have slots 209 inside. A first locking rod 215 and a second locking rod 216 are engaged inside the slots 209. The upper ends of the first locking rod 215 and the second locking rod 216 are connected to the lower end of the water cooling box 201 by bolts. The first locking rod 215 and the second locking rod 216 are connected and fixed by threaded rods 212.

[0024] The installer aligns the lower through hole 214 of the water-cooled housing 201 with the water cooling pipe port 206, and inserts the locking pin 205 of the water cooling pipe port 206 into the positioning pin groove 213 of the water-cooled housing 201. This ensures that the water cooling pipe port 206 is effectively connected and aligned with the lower through hole 214 of the water-cooled housing 201. The locking pin 205 in the positioning pin groove 213 effectively aligns the lower through hole of the water-cooled housing 201 with the water cooling pipe port 206, avoiding affecting the flow path of the coolant and increasing the risk of leakage. It also prevents the water cooling pipe port 206 from shaking due to vibration generated during the operation of the single-cylinder diesel engine assembly 100, thus preventing water cooling liquid leakage. Then, by engaging the first locking rod 215 and the second locking rod 216 at the lower end of the water-cooled housing 201 inside the first fixing frame 207 and the second fixing frame 208, and fixing them through the threaded rod 212, the split water-cooled component 200 can be stably connected. The sealing ring 211 can seal the water cooling pipe port 206 and the lower end through hole 214 of the water-cooled housing 201 to prevent water cooling liquid from leaking out. The sealing ring 211 is made of nitrile rubber (NBR), which has excellent oil resistance, wear resistance and aging resistance, and has become a commonly used material for making the sealing ring 211.

[0025] like Figure 1 , Figure 5 As shown, a second sealing connecting plate 301 is fixedly installed on both sides of the water-cooled box 201. The second sealing connecting plate 301 connects and fixes the first sealing connecting plate 300 through connecting bolts 302. The first sealing connecting plate 300 is fixedly installed on both sides of the water-cooled cover plate 202. An inlet pipe 204 is installed on the upper end of the water-cooled cover plate 202. A twist cap 203 is rotatably connected to the upper end of the inlet pipe 204. A fixed base plate 101 is fixedly installed on the lower end of the single-cylinder diesel engine assembly 100.

[0026] By disassembling the connecting bolts 302 of the first sealing connecting plates 300 on both sides of the water-cooled cover plate 202, the water-cooled cover plate 202 can be further separated from the upper end of the water-cooled box 201. After that, it is convenient to manually clean the dirt left by the internal cooling of the water-cooled box 201. The first sealing connecting plate 300 and the second sealing connecting plate 301 are tightly connected and fixed to prevent the internal cooling liquid of the water-cooled box 201 from leaking out. The sealing connecting plates are usually made of metal, and the specific metal materials include stainless steel, copper, aluminum, low carbon steel, etc.

[0027] This utility model provides a split-type water-cooled single-cylinder diesel engine block. The specific working principle is as follows: The installer aligns the lower end through hole 214 of the water-cooled housing 201 with the water cooling pipe port 206, and inserts the locking pin 205 of the water cooling pipe port 206 into the positioning pin groove 213 of the water-cooled housing 201. This effectively connects and aligns the water cooling pipe port 206 into the lower end through hole 214 of the water-cooled housing 201. The locking pin 205 inside the positioning pin groove 213 can prevent the vibration generated during the operation of the single-cylinder diesel engine assembly 100 from causing the water cooling pipe port 206 to shake, thus preventing water cooling liquid leakage. Then, by engaging the first locking rod 215 and the second locking rod 216 at the lower end of the water-cooled housing 201 inside the first fixing bracket 207 and the second fixing bracket 208, and fixing them through the threaded rod 212, the split water-cooling component 200 can be stably connected. The water cooling pipe port 206 and the lower end through hole 214 of the water-cooled housing 201 can be sealed by the sealing ring 211 to prevent the water cooling liquid from leaking out. The connecting bolts 302 of the first sealing connecting plates 300 on both sides of the water-cooled cover plate 202 can be disassembled, and the water-cooled cover plate 202 can be further separated from the upper end of the water-cooled housing 201. Then, it is convenient to manually clean the dirt left by the cooling inside the water-cooled housing 201. The tight connection and fixation between the first sealing connecting plate 301 and the second sealing connecting plate 301 can prevent the internal cooling liquid of the water-cooled housing 201 from leaking out.

[0028] 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 split-type water-cooled single-cylinder diesel engine block, comprising a single-cylinder diesel engine assembly (100) and a split-type water-cooling assembly (200), characterized in that: The single-cylinder diesel engine assembly (100) includes a water cooling port (206), which is fixedly installed on the upper end of the single-cylinder diesel engine assembly (100). A locking pin (205) is installed on the outer end of the water cooling port (206), and the locking pin (205) is inserted into the positioning pin groove (213) of the water-cooled box (201). A through hole (214) and a positioning pin groove (213) are opened at the lower end of the interior of the water-cooled box (201), and the water cooling port (206) is engaged inside the through hole (214). A sealing ring (211) is fixedly installed at the lower end of the water cooling pipe port (206), and the sealing ring (211) is connected to the lower end of the water cooling box (201) by bolts; a first fixing bracket (207) and a second fixing bracket (208) are fixedly installed at the upper end of the single-cylinder diesel engine assembly (100), and a slot (209) is opened inside the first fixing bracket (207) and the second fixing bracket (208); a first locking rod (215) and a second locking rod (216) are engaged and connected inside the slot (209), and the upper ends of the first locking rod (215) and the second locking rod (216) are connected to the lower end of the water cooling box (201) by bolts, and the first locking rod (215) and the second locking rod (216) are connected and fixed by threaded rod (212).

2. The split-type water-cooled single-cylinder diesel engine block according to claim 1, characterized in that: The water-cooled box (201) is fixedly installed with a second sealing connecting plate (301) on both sides. The second sealing connecting plate (301) connects and fixes the first sealing connecting plate (300) through a connecting bolt (302).

3. The split-type water-cooled single-cylinder diesel engine block according to claim 2, characterized in that: The first sealing connection plate (300) is fixedly installed on both sides of the water-cooled cover plate (202). An inlet pipe (204) is installed on the upper end of the water-cooled cover plate (202), and a twist cap (203) is rotatably connected to the upper end of the inlet pipe (204).

4. The split-type water-cooled single-cylinder diesel engine block according to claim 1, characterized in that: A fixed base plate (101) is fixedly installed at the lower end of the single-cylinder diesel engine assembly (100).