An automatic water replenishment device for internal combustion engines

By designing an automatic water replenishment device for internal combustion engines, and utilizing floats and mechanical transmission to achieve automatic water level control, the problem of low efficiency in traditional manual water replenishment is solved, improving the operation and maintenance efficiency and safety of internal combustion engines, and reducing space occupation and operational complexity.

CN224515261UActive Publication Date: 2026-07-17YANG ZHOU SHI DE LIN NEI RAN JI PEI JIAN YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANG ZHOU SHI DE LIN NEI RAN JI PEI JIAN YOU XIAN GONG SI
Filing Date
2025-09-29
Publication Date
2026-07-17

Smart Images

  • Figure CN224515261U_ABST
    Figure CN224515261U_ABST
Patent Text Reader

Abstract

This utility model discloses an automatic water replenishment device for internal combustion engines, including a water inlet assembly, a support assembly on the outside of the water inlet assembly, a diversion assembly on the inside of the water inlet assembly, a sealing assembly above the diversion assembly, and a control assembly on one side of the support assembly. In this utility model, when the water level drops, the float descends and pulls the connecting rod, the rubber stopper no longer blocks the overflow outlet. At this time, the water pressure in the pressure relief chamber is lower than the water pressure in the extension pipe. Part of the water flows out from the overflow outlet, and the other part pushes open the rubber pad and enters the outlet pipe through the permeable hole, finally flowing into the water tank from the drain outlet, thus achieving automatic water replenishment for the internal combustion engine water tank. This provides timely replenishment, is convenient to use, and greatly reduces the workload of workers. The device operates entirely by mechanical transmission, requiring no external cables or built-in sensing elements. The device is stable and reliable, occupies little space, and its deployment is virtually unrestricted by the environment. The outer casing is fitted onto the outside of the outlet pipe. The amount of water stored in the tank can be controlled by adjusting the height of the locking block in the limiting groove or finely adjusting the height of the float, making the device highly flexible.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the technical field of internal combustion engine water replenishment devices, and in particular relates to an automatic water replenishment device for internal combustion engines. Background Technology

[0002] As a core component of modern power systems, the stable operation of internal combustion engines depends on an effective cooling system. Traditional internal combustion engine cooling water systems generally rely on manual water replenishment, which suffers from low efficiency and cumbersome operation. With the development of automation technology, automatic water replenishment devices for internal combustion engines have emerged, greatly improving the intelligence level and operational efficiency of internal combustion engine cooling systems.

[0003] Traditional internal combustion engine cooling system water replenishment relies entirely on manual operation, a method that is increasingly revealing numerous shortcomings in modern power equipment operation and maintenance. Operators cannot monitor water level changes in real time, hindering immediate response. This delayed water replenishment can lead to the engine being undercooled for short periods, with long-term effects impacting engine lifespan. Furthermore, manual water level observation is subject to significant errors, making it difficult to precisely control the optimal water level range. When power plants have multiple internal combustion engine generator sets, manual inspections and manual oil replenishment significantly increase the workload of power plant maintenance personnel. During manual water replenishment, operators need to be in close contact with high-temperature components and liquids, posing safety risks such as burns. Utility Model Content

[0004] The purpose of this invention is to provide an automatic water replenishment device for internal combustion engines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic water replenishment device for an internal combustion engine includes a water inlet assembly, a support assembly on the outside of the water inlet assembly, a drainage assembly on the inside of the water inlet assembly, a sealing assembly above the drainage assembly, and a control assembly on one side of the support assembly. The water inlet assembly includes an inner pipe, an outer pipe at the bottom of the inner pipe, and a water outlet pipe on the outside of the inner pipe. The bottom of the water outlet pipe has several drain outlets at equal intervals, a reinforcing rib above the drain outlets, and several limiting grooves at equal intervals on the outer periphery of the water outlet pipe. The support assembly includes an outer shell, with several locking blocks at equal intervals on the bottom of the inner side of the outer shell, and a mounting groove on the top of the outer shell, with an internal thread on the top of the mounting groove.

[0007] Preferably, the drainage component includes an extension tube, the top end of which is provided with a connecting seat, and the connecting seat is provided with a plurality of water-permeable holes evenly distributed around its circumference.

[0008] Preferably, the sealing component includes a rubber pad with a through hole in the middle, a pressure cap slidably inserted at the edge of the rubber pad, a guide column in the middle of the pressure cap, the guide column being slidably connected to the through hole, an overflow port on the top surface of the pressure cap, and a pressure relief chamber formed between the pressure cap and the rubber pad.

[0009] Preferably, the control component includes a fixed frame, on which a V-shaped connecting rod is rotatably mounted. One end of the connecting rod is provided with a rubber stopper, and the other end of the connecting rod is provided with a sliding groove. A sliding block is provided in the sliding groove, and a screw is rotatably mounted on the sliding block. A knob is provided at the top of the screw, and a float is threadedly connected to the screw. A collar is provided on one side of the float.

[0010] Preferably, the outer edge of the water outlet pipe is slidably connected to the inner wall of the outer shell, and the locking block is slidably connected to the limiting groove.

[0011] Preferably, the bottom of the extension tube is slidably connected to the inner wall of the inner tube, and the connecting seat is located at the bottom of the placement groove.

[0012] Preferably, the pressure cap is installed on the top of the mounting groove by engaging with the internal thread.

[0013] Preferably, the bottom surface of the rubber pad matches the shape of the top surface of the connecting seat.

[0014] Preferably, the collar is slidably connected to the outer casing, and the fixing bracket is connected to the pressure cap bolt.

[0015] Preferably, when the connecting rod is near the cap, the rubber plug is located at the top of the overflow port.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, when the water level drops, the float descends and pulls the connecting rod, and the rubber plug no longer blocks the overflow port. At this time, the water pressure in the pressure relief chamber is lower than the water pressure in the extension pipe. Part of the water flows out from the overflow port, and the other part pushes open the rubber pad and enters the water outlet pipe through the water permeable hole, and finally flows into the water tank from the drain port, realizing automatic water replenishment of the internal combustion engine water tank. The water replenishment is timely and convenient to use, greatly reducing the workload of workers.

[0018] 2. In this utility model, the device relies entirely on mechanical transmission during operation, without the need for external cables or built-in sensing elements. The device operates stably and reliably, occupies little space, and its deployment is almost unrestricted by the environment.

[0019] 3. In this utility model, the outer shell is fitted onto the outside of the water outlet pipe. The amount of water stored in the water tank can be controlled by adjusting the height of the locking block into the limiting groove or by finely adjusting the height of the float. The device is highly flexible. Attached Figure Description

[0020] Figure 1 This is an exploded view of an automatic water replenishment device for an internal combustion engine as described in this utility model;

[0021] Figure 2 This is a side sectional view of an automatic water replenishment device for an internal combustion engine according to the present invention;

[0022] Figure 3 This is a schematic diagram of the water inlet assembly of an automatic water replenishment device for an internal combustion engine according to the present invention;

[0023] Figure 4 This is a partial cross-sectional view of the water inlet assembly of an automatic water replenishment device for an internal combustion engine according to the present invention;

[0024] Figure 5 This is a partial sectional view of a support assembly for an automatic water replenishment device for an internal combustion engine according to the present invention;

[0025] Figure 6 This is a partial cross-sectional view of the sealing assembly of an automatic water replenishment device for an internal combustion engine according to the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the control component of the automatic water replenishment device for an internal combustion engine described in this utility model.

[0027] In the attached diagram, the following are the reference numerals: 1. Water inlet assembly; 101. Inner pipe; 102. Outer pipe; 103. Water outlet pipe; 104. Drain outlet; 105. Reinforcing rib; 106. Limiting groove; 2. Support assembly; 201. Outer shell; 202. Locking block; 203. Installation groove; 204. Internal thread; 3. Drainage assembly; 301. Extension pipe; 302. Connecting seat; 303. Water permeable hole; 4. Sealing assembly; 401. Rubber pad; 402. Through hole; 403. Pressure cap; 404. Guide column; 405. Overflow outlet; 406. Pressure relief chamber; 5. Control assembly; 501. Fixing frame; 502. Connecting rod; 503. Rubber plug; 504. Slide groove; 505. Sliding block; 506. Screw; 507. Knob; 508. Float; 509. Collar. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-7An automatic water replenishment device for an internal combustion engine includes a water inlet component 1, a support component 2 disposed on the outside of the water inlet component 1, a diversion component 3 disposed on the inside of the water inlet component 1, a sealing component 4 disposed above the diversion component 3, and a control component 5 disposed on one side of the support component 2.

[0030] In this embodiment: the water inlet assembly 1 includes an inner pipe 101, an outer pipe 102 is provided at the bottom of the inner pipe 101, and a water outlet pipe 103 is provided on the outside of the inner pipe 101. Several drain outlets 104 are equidistantly opened at the bottom of the water outlet pipe 103. A reinforcing rib 105 is provided above the drain outlet 104. Several limiting grooves 106 are equidistantly arranged on the outer periphery of the water outlet pipe 103. The bottom of the outer pipe 102 is connected to the water supply pipe, and water flows into the inner pipe 101 through it. When the water pressure in the pressure relief chamber 406 is lower than the water pressure in the extension pipe 301, part of the water flows out from the overflow port 405, and the other part pushes open the rubber pad 401 and enters the water outlet pipe 103 through the water permeable hole 303. Finally, it flows into the water tank from the drain outlet 104, realizing the automatic water replenishment of the internal combustion engine water tank.

[0031] In this embodiment: the support component 2 includes an outer shell 201, a plurality of locking blocks 202 are equidistantly arranged on the bottom inner side of the outer shell 201, a mounting groove 203 is provided on the top of the outer shell 201, an internal thread 204 is provided on the top of the mounting groove 203, the outer edge of the water outlet pipe 103 is slidably connected to the inner wall of the outer shell 201, and the locking blocks 202 are slidably connected to the limiting groove 106.

[0032] In this embodiment: the drainage component 3 includes an extension tube 301, a connecting seat 302 is provided at the top of the extension tube 301, and a plurality of water-permeable holes 303 are evenly opened on the circumference of the connecting seat 302. The bottom of the extension tube 301 is slidably connected to the inner wall of the inner tube 101, and the connecting seat 302 is located at the bottom of the placement groove 203.

[0033] In this embodiment: the sealing component 4 includes a rubber pad 401, a through hole 402 in the middle of the rubber pad 401, a pressure cap 403 slidably inserted at the edge of the rubber pad 401, a guide column 404 in the middle of the pressure cap 403, the guide column 404 slidably connected to the through hole 402, an overflow port 405 on the top surface of the pressure cap 403, and a pressure relief chamber 406 is formed between the pressure cap 403 and the rubber pad 401. The pressure cap 403 is installed on the top of the placement groove 203 by cooperating with the internal thread 204. The bottom surface of the rubber pad 401 matches the shape of the top surface of the connecting seat 302. When the rubber pad 401 blocks the overflow port 405, the water pressure in the pressure relief chamber 406 is low, and the water still flows in along the guide column 404. The water pressure in the pressure relief chamber 406 gradually balances with the water pressure in the extension pipe 301. Under its own elasticity, the rubber pad 401 returns to its position and closes the water permeable hole 303, and the water flow stops.

[0034] In this embodiment: the control component 5 includes a fixed frame 501, on which a V-shaped connecting rod 502 is rotatably mounted. A rubber stopper 503 is provided at one end of the connecting rod 502, and a sliding groove 504 is provided at the other end. A sliding block 505 is provided within the sliding groove 504, and a screw 506 is rotatably mounted on the sliding block 505. A knob 507 is provided at the top of the screw 506, and a float 508 is threadedly connected to the screw 506. A collar 509 is provided on one side of the float 508, and the collar 509 is slidably connected to the outer casing 201. The fixed frame 501 is bolted to the pressure cover 403. When the connecting rod 502 approaches the pressure cover 403... At 3 o'clock, the rubber plug 503 is located at the top of the overflow port 405. When the water level in the internal combustion engine water tank drops, the float 508 descends and pulls the sliding block 505. The rubber plug 503 located at the other end of the connecting rod 502 no longer blocks the overflow port 405. The water level in the water tank gradually rises. The float 508 rises and drives the sliding block 505 to support the connecting rod 502 with the rubber pad 401 embedded at one end, which is close to the pressure cap 403. The height of the float 508 determines the amount of water stored in the water tank. Turning the knob 507 causes the screw 506 to rotate, which drives the float 508 to rise and fall along the outer shell 201 under the limiting action of the collar 509, so as to finely adjust the height of the float 508.

[0035] Working principle: During use, the bottom of the outer pipe 102 is connected to the water supply pipe, and water flows into the inner pipe 101 through this connection. When the water level in the internal combustion engine water tank drops, the float 508 descends, pulling the sliding block 505. The rubber plug 503 at the other end of the connecting rod 502 no longer blocks the overflow port 405. At this time, the water pressure in the pressure relief chamber 406 is lower than the water pressure in the extension pipe 301. Part of the water flows out from the overflow port 405, and the other part pushes open the rubber pad 401 and enters the outlet pipe 103 through the water permeable hole 303, finally flowing into the water tank from the drain port 104, thus realizing automatic water replenishment of the internal combustion engine water tank. As the water level in the tank gradually rises, the float 508 rises, driving the sliding block 505 to support the connecting rod 502 with the rubber pad 401 embedded at one end, which is close to the pressure cap 403. When the rubber pad 401 blocks the overflow port 405, the water pressure in the pressure relief chamber 406... Despite the low water pressure, water still flows in along the guide column 404. The water pressure in the pressure relief chamber 406 gradually balances with the water pressure in the extension pipe 301. Under its own elasticity, the rubber pad 401 returns to its position and seals the permeable hole 303, and the water flow stops. The device operates entirely by mechanical transmission, without the need for external cables or built-in sensing elements. The device is stable and reliable, occupies little space, and its deployment is almost unrestricted by the environment. The height of the float 508 determines the amount of water stored in the tank. It can be coarsely adjusted by rotating the outer shell 201 and sliding it along the outlet pipe 103 to engage the locking block 202 in the higher or lower limiting groove 106, or by turning the knob 507 to rotate the screw 506, which causes the float 508 to rise and fall along the outer shell 201 under the limiting action of the collar 509.

[0036] 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. An automatic water replenishment device for an internal combustion engine, comprising a water inlet assembly (1), characterized in that: A support component (2) is provided on the outside of the water inlet component (1), a drainage component (3) is provided on the inside of the water inlet component (1), a sealing component (4) is provided above the drainage component (3), and a control component (5) is provided on one side of the support component (2). The water inlet assembly (1) includes an inner pipe (101), an outer pipe (102) is provided at the bottom of the inner pipe (101), a water outlet pipe (103) is provided on the outside of the inner pipe (101), a plurality of drain outlets (104) are provided at equal intervals at the bottom of the water outlet pipe (103), a reinforcing rib (105) is provided above the drain outlets (104), and a plurality of limiting grooves (106) are provided at equal intervals on the outer periphery of the water outlet pipe (103). The support component (2) includes an outer shell (201), a plurality of locking blocks (202) are equidistantly arranged on the bottom inner side of the outer shell (201), and a mounting groove (203) is provided on the top of the outer shell (201), and an internal thread (204) is provided on the top of the mounting groove (203).

2. The automatic water replenishment device for an internal combustion engine according to claim 1, characterized in that: The drainage component (3) includes an extension tube (301), and a connecting seat (302) is provided at the top end of the extension tube (301). A plurality of water-permeable holes (303) are evenly opened on the circumference of the connecting seat (302).

3. The automatic water replenishment device for an internal combustion engine according to claim 2, characterized in that: The sealing component (4) includes a rubber pad (401), a through hole (402) is provided in the middle of the rubber pad (401), a pressure cap (403) is slidably inserted on the edge of the rubber pad (401), a flow guide column (404) is provided in the middle of the pressure cap (403), the flow guide column (404) is slidably connected to the through hole (402), an overflow port (405) is provided on the top surface of the pressure cap (403), and a pressure relief chamber (406) is formed between the pressure cap (403) and the rubber pad (401).

4. An automatic water replenishment device for an internal combustion engine according to claim 3, characterized in that: The control component (5) includes a fixed frame (501), on which a V-shaped connecting rod (502) is rotatably mounted. A rubber plug (503) is provided at one end of the connecting rod (502), and a sliding groove (504) is provided at the other end of the connecting rod (502). A sliding block (505) is provided in the sliding groove (504), and a screw (506) is rotatably mounted on the sliding block (505). A knob (507) is provided at the top of the screw (506), and a float (508) is threadedly connected to the screw (506). A collar (509) is provided on one side of the float (508).

5. An automatic water replenishment device for an internal combustion engine according to claim 1, characterized in that: The outer edge of the water outlet pipe (103) is slidably connected to the inner wall of the outer shell (201), and the locking block (202) is slidably connected to the limiting groove (106).

6. An automatic water replenishment device for an internal combustion engine according to claim 2, characterized in that: The bottom of the extension tube (301) is slidably connected to the inner wall of the inner tube (101), and the connecting seat (302) is located at the bottom of the placement groove (203).

7. An automatic water replenishment device for an internal combustion engine according to claim 3, characterized in that: The pressure cap (403) is installed on the top of the mounting groove (203) by engaging with the internal thread (204).

8. An automatic water replenishment device for an internal combustion engine according to claim 3, characterized in that: The bottom surface of the rubber pad (401) matches the top surface of the connector (302).

9. An automatic water replenishment device for an internal combustion engine according to claim 4, characterized in that: The collar (509) is slidably connected to the outer shell (201), and the fixing bracket (501) is bolted to the pressure cap (403).

10. An automatic water replenishment device for an internal combustion engine according to claim 4, characterized in that: When the connecting rod (502) approaches the cap (403), the rubber plug (503) is located on top of the overflow port (405).