An internal combustion engine cooling temperature detection device

By designing an internal combustion engine cooling temperature detection device, a reliable connection between the plug and the pipeline is achieved using a sealing sleeve and elastic components. Combined with the quick installation of a compact display and alarm unit, the problems of inconvenient plug connection and safety hazards in the prior art are solved, ensuring the stable operation and safety of the engine.

CN224499729UActive Publication Date: 2026-07-14YULIN INSPECTION & TESTING CENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YULIN INSPECTION & TESTING CENT CO LTD
Filing Date
2025-09-30
Publication Date
2026-07-14

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Abstract

The utility model relates to internal combustion engine technical field especially a kind of internal combustion engine cooling temperature detection device, including base and installation clamping groove, including base and compact display alarm unit, engine main body mechanism, electric dynamometer, engine coolant constant temperature system and engine intercooling system are respectively provided on the base, the top of the engine coolant constant temperature system is equipped with sensor data acquisition box, the sidewall of the engine main body mechanism is equipped with connecting pipeline mechanism, and the connecting pipeline mechanism is equipped with mounting sealing mechanism at the end away from the engine main body mechanism. The utility model is firstly connected by mounting sealing mechanism by external plug main body and multiple connecting pipeline main body, so that connecting pipeline main body and external plug main body are better sealed when connecting, and at the same time, compact display alarm unit is quickly installed, so that it can quickly alarm when internal combustion engine cooling temperature is abnormal.
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Description

Technical Field

[0001] This utility model relates to the field of internal combustion engine technology, and in particular to an internal combustion engine cooling temperature detection device. Background Technology

[0002] An internal combustion engine is a heat engine that converts heat energy directly into mechanical energy by burning fuel inside the machine. It is widely used in automobiles, ships, and construction machinery. Internal combustion engines belong to the category of heat engines. Their core characteristic is that fuel burns in a closed space (such as a cylinder). The high-temperature and high-pressure gas drives the piston or rotor to move, ultimately converting chemical energy into mechanical energy. The working principle can be divided into four stages: fuel and air mixing, combustion releasing heat energy, gas expansion driving the piston to do work, and mechanical energy output.

[0003] Internal combustion engine cooling temperature detection is a technology that uses pressure and temperature sensors to monitor the cooling system temperature in real time and feeds the data back to the control system to maintain stable engine operation. Internal combustion engine cooling temperature detection lines are mainly used to detect the temperature of the coolant or cooling air to ensure the engine operates within its optimal temperature range. Detection is achieved by connecting the lines to the cooling system. However, existing technology makes it inconvenient for operators to insert the cooling system plugs into the lines, increasing their workload. Furthermore, the lack of a compact display and alarm unit poses a safety hazard. Therefore, an internal combustion engine cooling temperature detection device is needed to meet these user needs. Summary of the Invention

[0004] This utility model provides an internal combustion engine cooling temperature detection device, which addresses the problem that in existing technology, the plug of the cooling system is inconvenient for operators to insert when connected to the pipeline, increasing the labor intensity of operators, and there is no alarm unit, thus posing certain safety hazards.

[0005] Therefore, the purpose of this invention is to provide an internal combustion engine cooling temperature detection device.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an internal combustion engine cooling temperature detection device, including a base and a compact display alarm unit. The base is respectively equipped with an engine main body structure, an electric dynamometer, an engine coolant constant temperature system, and an engine intercooler system. A sensor data acquisition box is installed at the top of the engine coolant constant temperature system. A connecting pipe mechanism is installed on the side wall of the engine main body structure, and a sealing mechanism is installed at the end of the connecting pipe mechanism away from the engine main body structure. An external plug body is installed on the side wall of the engine intercooler system and the engine coolant constant temperature system, and the external plug body is sealed to the connecting pipe mechanism through the sealing mechanism. A mounting slot is provided on the side wall of the engine coolant constant temperature system and the engine intercooler system, and a limit groove is provided at the top of the mounting slot. A compact display alarm unit is installed inside the mounting slot.

[0007] As a preferred embodiment of the internal combustion engine cooling temperature detection device of this utility model, the connecting pipeline mechanism includes a connecting pipeline body, and a sealing gasket is installed on the outer wall of one end of the connecting pipeline body.

[0008] As a preferred embodiment of the internal combustion engine cooling temperature detection device of this utility model, the installation sealing mechanism includes a sealing sleeve, which is welded and installed on the outer wall of the connecting pipeline body. The sealing sleeve has threaded holes inside, and bolt rods are connected to the threads inside the threaded holes. An elastic component is installed on the inner wall of the sealing sleeve.

[0009] As a preferred embodiment of the internal combustion engine cooling temperature detection device of this utility model, the elastic component includes an elastic frame, the elastic frame is fixedly installed on the inner wall of the sealing sleeve, the top and bottom ends of the elastic frame are both equipped with arc-shaped elastic plates, and the inner walls of the arc-shaped elastic plates are each equipped with a second high-pressure spring body, the end of the second high-pressure spring body away from the arc-shaped elastic plate is fixedly connected to the inner wall of the elastic frame.

[0010] As a preferred embodiment of the internal combustion engine cooling temperature detection device of this utility model, the arc-shaped elastic plates are of the same structure in two sets, and the two sets of arc-shaped elastic plates are symmetrically installed inside the elastic frame. The outer wall of each arc-shaped elastic plate is equipped with a third high-pressure spring body.

[0011] As a preferred embodiment of the internal combustion engine cooling temperature detection device of this utility model, the outer wall of the external plug body is provided with threaded holes, and the threaded holes are threadedly connected to the bolt rod.

[0012] As a preferred embodiment of the internal combustion engine cooling temperature detection device of this utility model, the compact display alarm unit includes a display alarm panel body. A mounting block is installed at one end of the display alarm panel body, and the mounting block cooperates with a mounting slot. A first through hole and a second through hole are respectively opened at the top of the mounting block. An installation chamber is opened inside the mounting block, and guide rails are installed on both sides of the installation chamber. Guide blocks are provided inside the guide rails, and a connecting plate is installed on the side wall at one end of the guide blocks. A first limiting rod and a second limiting rod are respectively installed at the top of the connecting plate, and the first and second limiting rods engage with the second through hole and the first through hole, respectively. A first high-pressure spring body is installed at the bottom of the connecting plate, and the bottom of the first high-pressure spring body is fixedly connected to the bottom of the installation chamber. An alarm body is installed on one side wall of the display alarm panel body.

[0013] As a preferred embodiment of the internal combustion engine cooling temperature detection device of this utility model, the sensor data acquisition box is equipped with a pressure sensor and a pressure and temperature acquisition module respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model firstly connects the external plug body to multiple sets of connecting pipe bodies, and the external plug body and the sealing sleeve engage with each other. This design, through the sealing gasket, improves the sealing effect when the sealing sleeve and connecting pipe body are inserted into the external plug body. Simultaneously, the elastic component design allows the elastic frame to be compressed during insertion, causing deformation of the arc-shaped elastic plate, the second high-pressure spring body, and the third high-pressure spring body. The elastic recovery of these components further enhances the sealing effect when the connecting pipe body and the external plug body are inserted. Furthermore, the bolt rod is threaded into both threaded holes and threaded holes, allowing the bolt rod to rotate and connect to the threaded holes, thus ensuring a more secure insertion of the external plug body and the connecting pipe body.

[0016] 2. This utility model firstly utilizes the cooperation between the mounting block and the mounting slot, and the cooperation between the guide rail and the guide block. By pressing the second limiting rod, the connecting plate is driven to rise and fall within the guide rail via the guide block, and the first high-pressure spring body is squeezed to deform. This causes the connecting plate to rise and fall, which in turn drives the first limiting rod to rise and fall within the installation chamber. When the mounting block and the mounting slot cooperate, the elastic recovery of the first high-pressure spring body drives the first limiting rod to rise and fall and engage with the limiting groove opened inside the mounting slot, thereby facilitating the operator to quickly install the compact display alarm unit. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a schematic front view of a cooling temperature detection device for an internal combustion engine.

[0019] Figure 2 A schematic diagram showing the disassembly structure of the main body of the connecting pipe and the main body of the external plug of an internal combustion engine cooling temperature detection device;

[0020] Figure 3 This is a schematic diagram of the internal structure of the connecting pipe body and the external plug body of an internal combustion engine cooling temperature detection device.

[0021] Figure 4 This is a schematic diagram showing the disassembled internal structure of the main body of the connecting pipe and the main body of the external plug of an internal combustion engine cooling temperature detection device.

[0022] Figure 5 A schematic diagram of the internal structure of an elastic frame for an internal combustion engine cooling temperature detection device;

[0023] Figure 6 A schematic diagram of a compact display and alarm unit for an internal combustion engine cooling temperature detection device;

[0024] Figure 7 This is a schematic diagram of the left-side cross-sectional structure of a compact display alarm unit for an internal combustion engine cooling temperature detection device.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Base; 2. Engine main body; 3. Electric dynamometer; 4. Engine coolant constant temperature system; 5. Sensor data acquisition box; 6. Engine intercooler system; 7. Compact display and alarm unit; 701. Display and alarm panel main body; 702. Mounting block; 7021. First through hole; 7022. Second through hole; 703. Mounting compartment; 7031. Guide rail; 7032. Guide block; 7033. Connecting plate; 7034. First limit rod; 7035. Second limit rod; 70 36. First high-pressure spring body; 704. Alarm body; 8. Connecting pipe mechanism; 801. Connecting pipe body; 802. Sealing gasket; 9. Sealing mechanism installation; 901. Sealing sleeve; 902. Threaded hole; 903. Bolt rod; 904. Elastic component; 9041. Elastic frame; 9042. Arc-shaped elastic plate; 9043. Second high-pressure spring body; 9044. Third high-pressure spring body; 10. External plug body; 1001. Threaded hole; 11. Mounting slot. Detailed Implementation

[0027] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "inner", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1: Refer to Figures 1-7This is the first embodiment of the present invention, which provides an internal combustion engine cooling temperature detection device. This device uses pressure and temperature sensors to monitor the cooling system temperature in real time and feeds the data back to the control system to maintain stable engine operation. However, existing technologies make it inconvenient for operators to insert the cooling system plug into the pipeline, increasing their workload. Furthermore, the lack of an alarm unit poses a safety hazard. The device includes a base 1 and a compact display and alarm unit 7. The base 1 is respectively equipped with an engine main body 2, an electric dynamometer 3, and an engine coolant constant pressure sensor. The engine coolant temperature control system 4 and the engine intercooling system 6 are equipped with a sensor data acquisition box 5 at the top. The engine main body 2 is the engine to be tested. A connecting pipe mechanism 8 is installed on the side wall of the engine main body 2, and a sealing mechanism 9 is installed at the end of the connecting pipe mechanism 8 away from the engine main body 2. An external plug body 10 is installed on the side wall of the engine intercooling system 6 and the engine coolant temperature control system 4. The external plug body 10 is sealed to the connecting pipe mechanism 8 through the sealing mechanism 9. A threaded hole 1001 is opened on the outer wall of the external plug body 10, and the threaded hole 1001 is threaded to the bolt rod 903.

[0031] Combination Figure 1 , Figure 2 and Figure 3 In an embodiment of this utility model, the connecting pipe mechanism 8 includes a connecting pipe body 801. A sealing gasket 802 is installed on the outer wall of one end of the connecting pipe body 801. The connecting pipe body 801 can be sealed and connected to the external plug body 10 installed on the side wall of the engine intercooling system 6 and the engine coolant constant temperature system 4 by installing a sealing mechanism 9.

[0032] Combination Figure 1 , Figure 4 and Figure 5In an embodiment of this utility model, the sealing mechanism 9 includes a sealing sleeve 901, which is welded to the outer wall of the connecting pipe body 801. Each sealing sleeve 901 has threaded holes 902 inside, and bolt rods 903 are threaded into the threaded holes 902. An elastic component 904 is installed on the inner wall of the sealing sleeve 901. The elastic component 904 is welded to the sealing sleeve 901 and includes an elastic frame 9041, which is fixedly installed on the sealing sleeve 901. On the inner wall, arc-shaped elastic plates 9042 are installed at the top and bottom of the elastic frame 9041, and a second high-pressure spring body 9043 is installed on the inner wall of each arc-shaped elastic plate 9042. The end of the second high-pressure spring body 9043 away from the arc-shaped elastic plate 9042 is fixedly connected to the inner wall of the elastic frame 9041. There are two sets of arc-shaped elastic plates 9042 with the same structure, and the two sets of arc-shaped elastic plates 9042 are symmetrically installed inside the elastic frame 9041. A third high-pressure spring body 9044 is installed on the outer wall of each arc-shaped elastic plate 9042.

[0033] The specific working principle is as follows: When a quick connection is required between the external plug body 10 and the connecting pipe mechanism 8, the connecting pipe body 801 is first inserted into the interior of the external plug body 10. The design of the sealing gasket 802 improves the sealing effect between the connecting pipe body 801 and the external plug body 10 during insertion. Simultaneously, the external plug body 10 and the sealing sleeve 901 cooperate, causing the sealing sleeve 901 to push the elastic component 904 against the outer wall of the external plug body 10. At the same time, the design of the elastic component 904 ensures that the elastic component 904 is compressed, causing the elastic frame 9041 to be subjected to pressure. The curved elastic plate 9042, the second high-pressure spring body 9043, and the third high-pressure spring body 9044 are deformed by compression and then elastically restored by the curved elastic plate 9042, the second high-pressure spring body 9043, and the third high-pressure spring body 9044, so that the sealing effect of the connecting pipe body 801 and the external plug body 10 is better when they are inserted. At the same time, the bolt rod 903 is threaded to the threaded hole 902 and the threaded hole 1001 respectively, so that the bolt rod 903 can rotate to connect with the threaded hole 1001, thereby making the insertion of the external plug body 10 and the connecting pipe body 801 more secure.

[0034] Example 2: Refer to Figures 1-7This is the first embodiment of the present invention. This embodiment provides an internal combustion engine cooling temperature detection device, which can realize the internal combustion engine cooling temperature detection by real-time monitoring of the cooling system temperature through pressure sensors and temperature sensors, and feed the data back to the control system to maintain stable engine operation. However, in the prior art, when the cooling system plug is connected to the pipeline, it is inconvenient for the operator to perform plug-in operation, which increases the labor intensity of the operator. At the same time, there is no alarm unit, which poses certain safety hazards. The side walls of the engine coolant constant temperature system 4 and the engine intercooler system 6 are provided with mounting slots 11, and the top of the mounting slot 11 is provided with a limit groove. The mounting slot 11 is provided with a compact display alarm unit 7. The sensor data acquisition box 5 is equipped with a pressure sensor and a pressure and temperature acquisition module respectively.

[0035] Combination Figure 1 , Figure 6 and Figure 7 In an embodiment of this utility model, the compact display alarm unit 7 includes a display alarm panel body 701. A mounting block 702 is installed at one end of the display alarm panel body 701, and the mounting block 702 cooperates with the mounting slot 11. A first through hole 7021 and a second through hole 7022 are respectively opened at the top of the mounting block 702. An installation chamber 703 is opened inside the mounting block 702, and guide rails 7031 are installed on the side walls at both ends of the installation chamber 703. Guide blocks 7032 are disposed inside the guide rails 7031. A connecting plate 7033 is installed on one side wall of the 2nd end. A first limiting rod 7034 and a second limiting rod 7035 are respectively installed on the top of the connecting plate 7033. The first limiting rod 7034 and the second limiting rod 7035 are respectively engaged with the second through hole 7022 and the first through hole 7021. A first high-pressure spring body 7036 is installed on the bottom of the connecting plate 7033. The bottom of the first high-pressure spring body 7036 is fixedly connected to the bottom of the installation chamber 703. An alarm body 704 is installed on one side wall of the display alarm panel body 701.

[0036] The specific working principle is as follows: When the compact display alarm unit 7 needs to be installed on the engine compartment wall, firstly, the mounting block 702 and the mounting slot 11 cooperate with each other, and the guide rail 7031 and the guide block 7032 cooperate with each other. By pressing the second limit rod 7035, the connecting plate 7033 is driven to rise and fall inside the guide rail 7031 through the guide block 7032, and the first high-pressure spring body 7036 is squeezed to deform. This causes the connecting plate 7033 to rise and fall, which in turn drives the first limit rod 7034 to rise and fall inside the installation chamber 703, so that when the mounting block 702... When in conjunction with the mounting slot 11, the first high-pressure spring body 7036 elastically returns to its original position, causing the first limit rod 7034 to rise and fall and engage with the limit groove opened inside the mounting slot 11, thereby facilitating the operator to quickly install the compact display alarm unit 7. At the same time, a pressure sensor and a pressure and temperature acquisition module are installed inside the sensor data acquisition box 5, and are connected to the connecting pipe body 801 through the external plug body 10, thereby detecting the cooling temperature of the engine body mechanism 2 through the pressure sensor and the pressure and temperature acquisition module.

Claims

1. A device for detecting the cooling temperature of an internal combustion engine, characterized in that: It includes a base (1) and a compact display alarm unit (7). The base (1) is respectively provided with an engine main body (2), an electric dynamometer (3), an engine coolant constant temperature system (4) and an engine intercooler system (6). The top of the engine coolant constant temperature system (4) is equipped with a sensor data acquisition box (5). The side wall of the engine main body (2) is equipped with a connecting pipe mechanism (8), and the end of the connecting pipe mechanism (8) away from the engine main body (2) is equipped with an installation sealing mechanism (9). The side walls of the engine intercooler system (6) and the engine coolant constant temperature system (4) are equipped with an external plug body (10), and the external plug body (10) is sealed to the connecting pipe mechanism (8) through the installation sealing mechanism (9). The side walls of the engine coolant constant temperature system (4) and the engine intercooler system (6) are provided with an installation slot (11), and the top of the installation slot (11) is provided with a limit groove. The interior of the installation slot (11) is provided with a compact display alarm unit (7).

2. The internal combustion engine cooling temperature detection device as described in claim 1, characterized in that: The connecting pipeline mechanism (8) includes a connecting pipeline body (801), and a sealing gasket (802) is installed on the outer wall of one end of the connecting pipeline body (801).

3. The internal combustion engine cooling temperature detection device as described in claim 1, characterized in that: The sealing mechanism (9) includes a sealing sleeve (901), which is welded to the outer wall of the connecting pipeline body (801). The sealing sleeve (901) has threaded holes (902) inside, and bolt rods (903) are threaded inside the threaded holes (902). An elastic component (904) is installed on the inner wall of the sealing sleeve (901).

4. The internal combustion engine cooling temperature detection device as described in claim 3, characterized in that: The elastic component (904) includes an elastic frame (9041), which is fixedly installed on the inner wall of the sealing sleeve (901). An arc-shaped elastic plate (9042) is installed at both the top and bottom of the elastic frame (9041), and a second high-pressure spring body (9043) is installed on the inner wall of the arc-shaped elastic plate (9042). The end of the second high-pressure spring body (9043) away from the arc-shaped elastic plate (9042) is fixedly connected to the inner wall of the elastic frame (9041).

5. The internal combustion engine cooling temperature detection device as described in claim 4, characterized in that: There are two sets of the same arc-shaped elastic plate (9042), and the two sets of arc-shaped elastic plates (9042) are symmetrically installed inside the elastic frame (9041). The outer wall of each arc-shaped elastic plate (9042) is equipped with a third high-pressure spring body (9044).

6. The internal combustion engine cooling temperature detection device as described in claim 1, characterized in that: The outer wall of the external plug body (10) is provided with threaded holes (1001), and the threaded holes (1001) are threadedly connected to the bolt rod (903).

7. The internal combustion engine cooling temperature detection device as described in claim 1, characterized in that: The compact display alarm unit (7) includes a display alarm panel body (701). A mounting block (702) is installed at one end of the display alarm panel body (701), and the mounting block (702) cooperates with the mounting slot (11). A first through hole (7021) and a second through hole (7022) are respectively opened at the top of the mounting block (702). An installation chamber (703) is opened inside the mounting block (702), and guide rails (7031) are installed on the side walls at both ends of the installation chamber (703). Guide blocks (7032) are provided inside the guide rails (7031), and the guide blocks (7032) are... A connecting plate (7033) is installed on the side wall of the end. A first limiting rod (7034) and a second limiting rod (7035) are respectively installed on the top of the connecting plate (7033). The first limiting rod (7034) and the second limiting rod (7035) are respectively engaged with the second through hole (7022) and the first through hole (7021). A first high-pressure spring body (7036) is installed on the bottom of the connecting plate (7033). The bottom of the first high-pressure spring body (7036) is fixedly connected to the bottom of the installation chamber (703). An alarm body (704) is installed on the side wall of one side of the display alarm panel body (701).

8. The internal combustion engine cooling temperature detection device as described in claim 1, characterized in that: The sensor data acquisition box (5) is equipped with a pressure sensor and a pressure and temperature acquisition module.