Engine lower exhaust detection tool
By designing a limit tooth and a push component for the engine exhaust inspection tool, the problem of inconvenient disassembly caused by tight clamps or cable ties was solved, enabling quick fixing and disassembly of the exhaust pipe and improving inspection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GAIYE INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-28
AI Technical Summary
Existing engine exhaust inspection tools require clamps or cable ties to secure the exhaust pipe after insertion, which makes disassembly inconvenient and reduces work efficiency.
An engine exhaust pipe testing tool was designed, which uses a limiting tooth and a pushing component. The limiting tooth is rotated by rotating the rotating tube to fix the exhaust pipe. When disassembling, the limiting tooth returns to its original position, avoiding the use of additional tools.
This allows for quick fixing and disassembly of the exhaust pipe without the need for additional tools during the inspection process, improving work efficiency.
Smart Images
Figure CN224176107U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engines, specifically an engine exhaust gas testing tool. Background Technology
[0002] An internal combustion engine, also known as a reciprocating piston engine, differs from an external combustion engine primarily in that its fuel is burned internally. There are many types of internal combustion engines; common examples include gasoline engines and diesel engines.
[0003] The engine has a lower exhaust pipe. When there is a problem with the engine, the lower exhaust pipe will emit a larger amount of gas or gas of an unusual color. At this time, the lower exhaust pipe can be inspected to determine what problem the engine has. Currently, when inspecting the lower exhaust pipe, one end of the inspection tool needs to be inserted into the lower exhaust pipe, and the other end is connected to a water pressure gauge. Then the engine is started, and the change in the water column of the water pressure gauge can be used to determine whether the engine is abnormal. However, after the inspection tool is inserted into the lower exhaust pipe, in order to ensure that the position is fixed, a clamp or cable tie is used to restrict the position of the lower exhaust pipe and the inspection tool. However, after using the clamp or cable tie, tools are needed to remove it, which makes the use inconvenient and reduces work efficiency. Utility Model Content
[0004] To overcome the shortcomings of existing technologies and solve the problem that after inserting the testing tool into the lower exhaust pipe, clamps or cable ties are used to restrict the position of the lower exhaust pipe and the testing tool in order to ensure that the position is fixed, but clamps or cable ties need to be removed with tools after use, which makes it inconvenient to use and reduces work efficiency, this utility model proposes an engine lower exhaust testing tool.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: An engine exhaust detection tool according to this utility model includes a vent pipe, a connector fixedly connected to the outside of the vent pipe, the connector communicating with the inside of the vent pipe, a rubber sleeve fitted on the outside of the vent pipe, an insertion head fixedly connected to the end of the vent pipe, a connecting assembly provided on the outside of the vent pipe, the connecting assembly including a receiving tube fixedly connected to the outside of the vent pipe, four limiting plates fixedly connected inside the receiving tube, the four limiting plates being divided into two groups, each group of limiting plates having a rotating shaft rotatably connected inside, a limiting tooth fixedly connected to the outside of the rotating shaft, a torsion spring fixedly connected between the outside of the limiting tooth and the outside of the limiting plate, a first limiting block fixedly connected to the outside of the limiting tooth, and a second limiting block abutting against the outside of the first limiting block.
[0006] Preferably, a pushing component is provided on the outside of the limiting tooth. The pushing component includes a pushing tooth slidably connected to the outside of the limiting tooth. The pushing tooth passes through the receiving tube and is slidably connected. A rotating tube is fixedly connected to the outside of the pushing tooth. The rotating tube is rotatably connected to the outside of the receiving tube.
[0007] Preferably, a limiting component is provided on the outside of the rotating tube. The limiting component includes a pressure ring that is slidably connected to the inside of the rotating tube. The pressure ring passes through the rotating tube, and a limiting tooth engages on the outside of the pressure ring. The limiting tooth is fixedly connected to the outside of the receiving tube.
[0008] Preferably, a spring-loaded assembly is provided on the outside of the storage tube. The spring-loaded assembly includes a limiting ring fixedly connected to the outside of the storage tube, and a spring is fixedly connected to the top of the limiting ring.
[0009] Preferably, the end of the second limiting block is fixedly connected to the inside of the receiving tube, and the limiting tooth penetrates the receiving tube and is slidably connected.
[0010] Preferably, the limiting tooth is crescent-shaped, and the lower pressure ring is positioned inside the rotating tube in a crescent shape.
[0011] Preferably, the spring is sleeved on the outside of the receiving tube, and the top of the spring is slidably connected to the bottom of the lower pressure ring.
[0012] The advantages of this utility model are:
[0013] 1. This utility model uses a rotating tube to drive the pushing tooth to move, which in turn drives the limiting tooth to rotate, thereby squeezing the lower exhaust pipe and restricting its position. This allows the lower exhaust pipe to be connected to the insert head, ensuring that the insert head and the lower exhaust pipe will not separate during inspection. When the lower exhaust pipe needs to be disassembled, the pushing component can be rotated again, causing the limiting tooth to rotate by the torsion spring and return to its original position, thus allowing the lower exhaust pipe to be disassembled. This reduces the time required for disassembly and eliminates the need for additional tools, thereby improving work efficiency.
[0014] 2. This utility model compresses the spring by pressing the lower pressure ring, thereby separating the lower pressure ring from the limiting tooth. At this time, the rotating tube can rotate. After the rotation is completed, the spring can drive the lower pressure ring to return to its original position, thus restricting the position of the rotating tube again. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall formal structure in Example 1;
[0017] Figure 2 This is a schematic diagram of the overall top view structure in Embodiment 1;
[0018] Figure 3 This is a top-down view of the disassembled structure in Example 1;
[0019] Figure 4 This is a top-view structural diagram showing the disassembled components in Example 1;
[0020] Figure 5 This is a top view of the disassembled components in Example 2;
[0021] Figure 6 This is a schematic diagram of the internal component breakdown structure in Embodiment 2.
[0022] In the diagram: 1. Vent tube; 2. Connector; 3. Rubber sleeve; 4. Insertion head; 5. Receiving tube; 6. Limiting plate; 7. Rotating shaft; 8. Limiting tooth; 9. Torsion spring; 10. First limiting block; 11. Second limiting block; 12. Pushing tooth; 13. Rotating tube; 14. Lower pressure ring; 15. Limiting tooth; 16. Limiting ring; 17. Spring. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] Please see Figure 1-6As shown, an engine exhaust detection tool includes a vent pipe 1, a connector 2 fixedly connected to the outside of the vent pipe 1, the connector 2 communicating with the inside of the vent pipe 1, a rubber sleeve 3 sleeved on the outside of the vent pipe 1, an insertion head 4 fixedly connected to the end of the vent pipe 1, and a connecting assembly provided on the outside of the vent pipe 1. The connecting assembly includes a receiving tube 5 fixedly connected to the outside of the vent pipe 1, four limiting plates 6 fixedly connected inside the receiving tube 5, the four limiting plates 6 being divided into two groups, each group of limiting plates 6 being rotatably connected to a rotating shaft 7, a limiting tooth 8 fixedly connected to the outside of the rotating shaft 7, a torsion spring 9 fixedly connected between the outside of the limiting tooth 8 and the outside of the limiting plate 6, a first limiting block 10 fixedly connected to the outside of the limiting tooth 8, and a second limiting block 11 abutting against the outside of the first limiting block 10.
[0026] During operation, the lower exhaust pipe is first fitted inside the insert head 4. Then, by rotating the push assembly, the limiting tooth 8 is rotated, which in turn squeezes the lower exhaust pipe, thus restricting its position. This ensures that the lower exhaust pipe and the insert head 4 are connected together, preventing separation during inspection. When the lower exhaust pipe needs to be disassembled, the push assembly can be rotated again, causing the limiting tooth 8 to be rotated by the torsion spring 9, returning it to its original position. This allows the lower exhaust pipe to be disassembled, reducing the time required for disassembly and eliminating the need for additional tools, thereby improving work efficiency.
[0027] Among them, a pushing component is provided on the outside of the limiting tooth 8. The pushing component includes a pushing tooth 12 that is slidably connected to the outside of the limiting tooth 8. The pushing tooth 12 passes through the storage tube 5 and is slidably connected. A rotating tube 13 is fixedly connected to the outside of the pushing tooth 12. The rotating tube 13 is rotatably connected to the outside of the storage tube 5.
[0028] During operation, rotating the rotating tube 13 drives the pushing tooth 12 to move, thereby causing the limiting tooth 8 to rotate.
[0029] The second limiting block 11 is fixedly connected to the inside of the storage tube 5 at its end, and the limiting tooth 8 passes through the storage tube 5 and is slidably connected.
[0030] During operation, the movement distance of the first limit block 10 can be limited by the second limit block 11, thereby limiting the range of rotation of the limit tooth 8.
[0031] Example 2
[0032] Please see Figure 5As shown in the first embodiment, as another implementation of this utility model, a limiting component is provided on the outside of the rotating tube 13. The limiting component includes a pressing ring 14 that is slidably connected inside the rotating tube 13. The pressing ring 14 passes through the rotating tube 13, and a limiting tooth 15 engages on the outside of the pressing ring 14. The limiting tooth 15 is fixedly connected to the outside of the receiving tube 5.
[0033] During operation, the lower pressure ring 14 moves to engage with the limiting tooth 15, thereby restricting the position of the rotating tube 13 and preventing it from rotating.
[0034] The storage tube 5 is provided with a spring-loaded assembly on its outer side. The spring-loaded assembly includes a limiting ring 16 fixedly connected to the outer side of the storage tube 5, and a spring 17 fixedly connected to the top of the limiting ring 16.
[0035] During operation, the pressure ring 14 is pressed to compress the spring 17, thereby separating the pressure ring 14 from the limiting tooth 15. At this time, the rotating tube 13 can rotate. After the rotation is completed, the spring 17 can drive the pressure ring 14 to return to its original position, thus restricting the position of the rotating tube 13 again.
[0036] Among them, the limiting tooth 15 is set in a crescent shape, and the lower pressure ring 14 is set in a crescent shape inside the rotating tube 13.
[0037] During operation, by positioning the lower pressure ring 14 inside the rotating tube 13 and setting the limiting tooth 15 to a crescent shape, the lower pressure ring 14 can mesh with the limiting tooth 15, thereby allowing the limiting tooth 15 to restrict the position of the lower pressure ring 14.
[0038] The spring 17 is sleeved on the outside of the storage tube 5, and the top of the spring 17 is slidably connected to the bottom of the pressure ring 14.
[0039] During operation, the spring 17 and the lower pressure ring 14 are separated, so that when the lower pressure ring 14 rotates with the rotating tube 13, it will not affect the spring 17.
[0040] The working principle is as follows: First, the lower exhaust pipe is fitted inside the insert head 4. Then, by rotating the rotating tube 13, the pushing tooth 12 is moved, which in turn drives the limiting tooth 8 to rotate. This causes the limiting tooth 8 to squeeze the lower exhaust pipe, thus restricting its position. This keeps the lower exhaust pipe connected to the insert head 4, ensuring that the insert head 4 and the lower exhaust pipe will not separate during inspection. When it is necessary to disassemble the lower exhaust pipe, the pushing component can be rotated again, causing the limiting tooth 8 to rotate by the torsion spring 9, which in turn returns the limiting tooth 8 to its original position. This allows the lower exhaust pipe to be disassembled, reducing the time required for disassembly and eliminating the need for additional tools, thereby improving work efficiency.
[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An engine exhaust detection tool, comprising a vent pipe (1), a connector (2) fixedly connected to the outside of the vent pipe (1), the connector (2) communicating with the inside of the vent pipe (1), a rubber sleeve (3) sleeved on the outside of the vent pipe (1), and an insertion head (4) fixedly connected to the end of the vent pipe (1). Its features are: A connecting assembly is provided on the outside of the vent pipe (1). The connecting assembly includes a receiving tube (5) fixedly connected to the outside of the vent pipe (1). Four limiting plates (6) are fixedly connected inside the receiving tube (5). The four limiting plates (6) are divided into two groups. A rotating shaft (7) is rotatably connected inside the two groups of limiting plates (6). A limiting tooth (8) is fixedly connected to the outside of the rotating shaft (7). A torsion spring (9) is fixedly connected between the outer side of the limiting tooth (8) and the outer side of the limiting plate (6). A first limiting block (10) is fixedly connected to the outer side of the limiting tooth (8). A second limiting block (11) abuts against the outer side of the first limiting block (10).
2. The engine exhaust gas testing tool according to claim 1, characterized in that: A pushing component is provided on the outside of the limiting tooth (8). The pushing component includes a pushing tooth (12) that is slidably connected to the outside of the limiting tooth (8). The pushing tooth (12) passes through the receiving tube (5) and is slidably connected. A rotating tube (13) is fixedly connected to the outside of the pushing tooth (12). The rotating tube (13) is rotatably connected to the outside of the receiving tube (5).
3. The engine exhaust gas testing tool according to claim 2, characterized in that: A limiting component is provided on the outside of the rotating tube (13). The limiting component includes a pressure ring (14) that is slidably connected inside the rotating tube (13). The pressure ring (14) passes through the rotating tube (13). A limiting tooth (15) engages on the outside of the pressure ring (14). The limiting tooth (15) is fixedly connected to the outside of the receiving tube (5).
4. The engine exhaust gas testing tool according to claim 1, characterized in that: The storage tube (5) is provided with a spring-loaded assembly on the outside. The spring-loaded assembly includes a limiting ring (16) fixedly connected to the outside of the storage tube (5). A spring (17) is fixedly connected to the top of the limiting ring (16).
5. The engine exhaust gas testing tool according to claim 1, characterized in that: The end of the second limiting block (11) is fixedly connected to the inside of the receiving tube (5), and the limiting tooth (8) passes through the receiving tube (5) and is slidably connected.
6. The engine exhaust gas testing tool according to claim 3, characterized in that: The limiting tooth (15) is set in a crescent shape, and the pressure ring (14) is set in a crescent shape inside the rotating tube (13).
7. The engine exhaust gas testing tool according to claim 4, characterized in that: The spring (17) is sleeved on the outside of the storage tube (5), and the top of the spring (17) is slidably connected to the bottom of the pressure ring (14).