Motor vehicle tail gas detection device

Abstract

The utility model relates to the technical field of tail gas detection, in particular to a motor vehicle tail gas detection device which comprises a tail gas detection machine, a connecting hose is connected to the right side of the tail gas detection machine, and a quick connecting mechanism is connected to the tail end of the connecting hose and comprises a stainless steel gas collecting pipe and a sleeve. The stainless steel gas collecting pipe is fixedly connected to the tail end of the connecting hose, the annular face of the stainless steel gas collecting pipe is fixedly sleeved with a sleeve, the sleeve is sleeved with an adjusting assembly, a locking assembly is arranged on the right side of the adjusting assembly, and a gas collecting head made of rubber and of a conical structure is arranged at the right end in the stainless steel gas collecting pipe. Through the designed quick connecting mechanism, an operator can quickly and conveniently connect the tail gas detection device to the tail gas pipe of the motor vehicle without a tedious manual sleeving process, so that the working efficiency is greatly improved, and the operator does not need to be in close contact with the tail gas pipe, thereby reducing the risk of sucking harmful tail gas and ensuring the safety of the motor vehicle. And better protection is provided for the health of operators.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust gas detection, in particular to an exhaust gas detection device for a motor vehicle. Background Art

[0002] Motor vehicle exhaust gas detection is to analyze and measure the components and concentrations of exhaust gas emitted by motor vehicles when they are idling or in working condition on site or on a running test bench. The large amount of harmful exhaust gas emitted by motor vehicles when they are running is the main source of mobile pollution in the ambient air, and its exhaust gas detection is an important part of ambient air pollution monitoring. The main items detected are carbon monoxide, nitrogen oxides, hydrocarbons, photochemical oxidants and smoke density.

[0003] Motor vehicle exhaust detection is an important means to evaluate vehicle emission conditions and protect the environment. Existing exhaust detection devices are usually connected to the vehicle exhaust pipe through a sleeve to extract the exhaust gas discharged by the vehicle for detection. However, in actual operation, the operator is required to manually connect the sleeve to the vehicle exhaust pipe, which is cumbersome and inconvenient, and will come into close contact with the vehicle exhaust pipe, posing a risk of inhaling harmful exhaust gas, posing a threat to the operator's health. In response to these problems, the utility model proposes a motor vehicle exhaust detection device that can be quickly connected and locked. Utility Model Content

[0004] In view of the existing deficiencies, the utility model provides a motor vehicle exhaust detection device, which solves the problems raised by the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A motor vehicle exhaust gas detection device includes an exhaust gas detection machine, a connecting hose is connected to the right side of the exhaust gas detection machine, a quick connection mechanism is connected to the end of the connecting hose, the quick connection mechanism includes a stainless steel gas collecting pipe, an adjustment component, a locking component, a sleeve and a gas collecting head, the stainless steel gas collecting pipe is fixedly connected to the end of the connecting hose, the stainless steel gas collecting pipe annular fixed sleeve is provided with a sleeve, the sleeve is provided with an adjustment component, a locking component is provided on the right side of the adjustment component, and a gas collecting head with a conical structure of rubber material is provided at the right end inside the stainless steel gas collecting pipe.

[0007] Furthermore, a non-slip rubber sleeve is sleeved on the annular surface of the stainless steel gas collecting pipe, and the non-slip rubber sleeve is located on the left side of the sleeve.

[0008] Furthermore, the adjustment component is composed of a movable sleeve and a handle, the movable sleeve is arranged on the sleeve, and a plurality of groups of handles are evenly arranged on the ring surface of the movable sleeve.

[0009] Furthermore, an inner wall of the movable sleeve is provided with an internal thread, and an outer thread is provided on the left side of the outer surface of the sleeve, and the movable sleeve is screwed together with the sleeve through threads.

[0010] Furthermore, the locking assembly includes an active clamping ring, an articulated joint, a transmission connecting rod, a special-shaped connecting rod, a fixed ring and a clamping card plate. The active clamping ring is movably sleeved on the sleeve and is located on the right side of the active sleeve. A fixed ring is provided on the right side of the active clamping ring, and the fixed ring is fixedly sleeved on the stainless steel gas collecting pipe. A plurality of groups of arc-shaped clamping cards are evenly arranged on the right side of the fixed ring. The upper surface of the clamping card plate is movably connected with the special-shaped connecting rod through a hinge joint, and the left end of the special-shaped connecting rod is movably connected with the transmission connecting rod through a pin shaft. The special-shaped connecting rod is movably connected to the fixing ring through a hinge joint, and the left end of the transmission connecting rod is rotatably connected to the active clamping ring through a hinge joint.

[0011] Furthermore, a layer of rubber pad is adhered to the bottom surface of the clamping card.

[0012] Furthermore, limit blocks are arranged on both upper and lower sides of the inner wall of the movable clamping ring, and a limit sliding groove for accommodating the limit blocking block is opened on the surface of the sleeve, and the limit blocking block is inserted into the limit sliding groove.

[0013] Furthermore, ear plates are fixedly provided on both sides of the upper side of the movable clamp ring surface, a slide plate is fixedly provided on the bottom surface of the ear plates, and an annular groove for accommodating the slide plate is opened on the right side of the movable sleeve ring surface, and the slide plate is inserted into the annular groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model is designed with a quick connection mechanism, so that the operator can quickly and conveniently connect the exhaust gas detection device to the exhaust pipe of the motor vehicle without the need for cumbersome manual connection process, which greatly improves work efficiency. The operator does not need to come into close contact with the exhaust pipe, thereby reducing the risk of inhaling harmful exhaust gas and providing better protection for the health of the operator.

[0016] 2. The utility model has an anti-skid rubber sleeve on the annular surface of the stainless steel gas collecting pipe, and the anti-skid rubber sleeve is located on the left side of the sleeve. The main function of the anti-skid rubber sleeve is to increase friction, so that the operator can control the stainless steel gas collecting pipe more firmly when holding it, prevent it from slipping during connection or disconnection, provide additional gripping force, ensure the stability of the grip, and not only provide good anti-skid performance, but also increase the comfort during operation.

[0017] 3. The adjustment component consists of a movable sleeve and a handle. The movable sleeve is arranged on the sleeve, and multiple sets of handles are evenly arranged on the ring surface of the movable sleeve. The set adjustment component is used to push the locking component to move forward and backward, thereby controlling the opening and closing of the locking component to realize the locking and unlocking control of the locking component.

[0018] 4. The internal and external threads can ensure the stable connection between the sleeve and the sleeve. By rotating the sleeve, the internal threads on the inner wall of the sleeve are tightly engaged with the external threads on the outer surface of the sleeve, which can ensure that the sleeve is firmly fixed on the sleeve and is not easy to loosen or fall off. At the same time, the threads can make the sleeve move when rotating, thereby pushing the locking assembly to move.

[0019] 5. The locking assembly can be set to clamp and fix the connection between the stainless steel collecting pipe and the automobile exhaust pipe, ensuring the stable connection between the stainless steel collecting pipe and the automobile exhaust pipe, which is not easy to fall off, and realizing the quick connection and locking operation, which not only improves the convenience of operation, but also ensures the stability of the connection, and can adapt to exhaust pipes of different diameters and specifications, and has a wide range of applications. When the operator rotates the movable sleeve to move it to the right, the movable clamping ring will also move to the left, and the transmission force will be transmitted to the clamping card through the transmission connecting rod and the special-shaped connecting rod, so that they are clamped inward, thereby locking the automobile exhaust pipe. Conversely, when the movable sleeve moves to the left, the clamping card will loosen, releasing the automobile exhaust pipe and releasing the locked state.

[0020] 6. A layer of rubber pad is attached to the bottom of the clamping card. The main function of the rubber pad is to protect the surface of the automobile exhaust pipe from damage. The metal clamping card directly contacts the exhaust pipe, which may scratch or carve into the surface of the exhaust pipe during the clamping process, and the rubber pad can provide a layer of buffer to reduce the risk of such damage. At the same time, the rubber pad can increase the friction of the connection, improve the anti-slip effect, and ensure the close fit and stable clamping force of the clamping card.

[0021] 7. The limit block and the limit groove limit the movable clamp ring, which can accurately control the position of the movable clamp ring on the sleeve, prevent the movable clamp ring from rotating in the circumferential direction, ensure the stable operation of the locking assembly, and improve the reliability of the locking assembly.

[0022] 8. Ear plates are fixed on both sides of the upper side of the ring surface of the movable collar, and a slide plate is fixed on the bottom of the ear plates. A ring groove for accommodating the slide plate is opened on the right side of the ring surface of the movable sleeve, and the slide plate is inserted into the ring groove. This design can achieve a stable connection between the movable collar and the movable sleeve through the cooperation of the ear plates, the slide plate and the ring groove, so that the movable collar can move with the activity without rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0024] Figure 2 It is a structural schematic diagram of the quick connection mechanism in the utility model.

[0025] Figure 3This is a schematic structural diagram of the quick connection mechanism in the utility model from another angle.

[0026] Figure 4 It is the front view of the utility model.

[0027] Figure 5 It is a schematic diagram of the disassembled structure of the quick connection mechanism in the utility model.

[0028] Figure 6 It is a structural schematic diagram of the locking assembly in the utility model.

[0029] Figure 7 It is a structural schematic diagram of the sleeve and the movable clamp ring in the utility model.

[0030] Figure 8 It is a structural schematic diagram of the movable clamp ring and the movable sleeve in the utility model.

[0031] Fig. 9 It is a cross-sectional view of the stainless steel gas collecting pipe in the utility model.

[0032] In the figure: 1. exhaust gas detection machine; 2. connecting hose; 3. quick connection mechanism; 31. stainless steel gas collecting pipe; 32. anti-skid rubber sleeve; 33. adjustment component; 331. movable sleeve; 3311. ring groove; 332. internal thread; 333. handle; 34. locking component; 341. movable clamping ring; 3411. limit block; 3412. ear plate; 3413. slide plate; 342. hinged head; 343. transmission connecting rod; 344. special-shaped connecting rod; 345. fixing ring; 346. clamping card plate; 347. rubber pad; 35. sleeve; 351. external thread; 352. limit slide groove; 36. gas collecting head. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Example:

[0035] like Figures 1 to 9As shown, a motor vehicle exhaust gas detection device includes an exhaust gas detection machine 1, which adopts the automobile exhaust gas detection instrument in the prior art. A connecting hose 2 is connected to the right side of the exhaust gas detection machine 1, and a quick connecting mechanism 3 is connected to the end of the connecting hose 2. The quick connecting mechanism 3 includes a stainless steel collecting pipe 31, an adjusting component 33, a locking component 34, a sleeve 35 and a collecting head 36. The stainless steel collecting pipe 31 is fixedly connected to the end of the connecting hose 2. The stainless steel collecting pipe 31 is annularly fixed with a sleeve 35, and an adjusting component 33 is sleeved on the sleeve 35. A locking component 34 is arranged on the right side of the adjusting component 33, and a collecting head 36 with a conical structure of rubber material is arranged on the right end of the stainless steel collecting pipe 31. This design solves the problem in the prior art that when using the exhaust gas detection device to detect the exhaust gas of a motor vehicle, the operator needs to manually connect the sleeve to the automobile exhaust pipe, the operation is cumbersome and inconvenient, and it will be in close contact with the exhaust pipe of the motor vehicle, there is a risk of inhaling harmful exhaust gas, and it poses a threat to the health of the operator.

[0036] The annular surface of the stainless steel gas collecting pipe 31 is covered with an anti-skid rubber sleeve 32, and the anti-skid rubber sleeve 32 is located on the left side of the sleeve 35. The main function of the anti-skid rubber sleeve 32 is to increase the friction force, so that the operator can control the stainless steel gas collecting pipe 31 more firmly when holding it, prevent it from slipping during the connection or disconnection process, provide additional gripping force, ensure the stability of the grip, and not only provide good anti-skid performance, but also increase the comfort during operation.

[0037] The adjustment component 33 is composed of a movable sleeve 331 and a handle 333. The movable sleeve 331 is sleeved on the sleeve 35, and a plurality of handles 333 are evenly arranged on the annular surface of the movable sleeve 331. The adjustment component 33 is used to push the locking component 34 to move forward and backward, thereby controlling the opening and closing of the locking component 34, and realizing the locking and unlocking control of the locking component 34.

[0038] An internal thread 332 is provided on the inner wall of the movable sleeve 331, and an external thread 351 is provided on the left side of the outer surface of the sleeve 35. The movable sleeve 331 and the sleeve 35 are screwed together by threads. The internal thread 332 and the external thread 351 can ensure a stable connection between the movable sleeve 331 and the sleeve 35. By rotating the movable sleeve 331, the internal thread 332 on the inner wall and the external thread 351 on the outer surface of the sleeve 35 are tightly engaged, which can ensure that the movable sleeve 331 is firmly fixed on the sleeve 35 and is not easy to loosen or fall off. At the same time, the threads can make the movable sleeve 331 move when rotating, thereby pushing the locking assembly 34 to move.

[0039] The locking assembly 34 includes a movable clamping ring 341, a hinged joint 342, a transmission connecting rod 343, a special-shaped connecting rod 344, a fixed ring 345 and a clamping card plate 346. The movable sleeve 331 of the movable clamping ring 341 is arranged on the sleeve 35 and is located on the right side of the movable sleeve 331. A fixed ring 345 is arranged on the right side of the movable clamping ring 341, and the fixed ring 345 is fixedly sleeved on the stainless steel gas collecting pipe 31. A plurality of groups of arc-shaped clamping card plates 346 are evenly arranged on the right side of the fixed ring 345. The upper surface of the clamping card plate 346 is movably connected with the special-shaped connecting rod 344 through the hinged joint 342. The left end of the special-shaped connecting rod 344 is movably connected with the transmission connecting rod 343 through a pin shaft. The special-shaped connecting rod 344 is movably connected to the fixed ring 345 through the hinged joint 342. The left end of the transmission connecting rod 343 is rotatably connected to the movable clamping ring 341 through the hinged joint 342. The design can clamp and fix the connection between the stainless steel collecting pipe 31 and the automobile exhaust pipe by setting the locking assembly 34, thereby ensuring the stable connection between the stainless steel collecting pipe 31 and the automobile exhaust pipe, and preventing it from falling off, thus realizing the quick connection and locking operation, which not only improves the convenience of operation, but also ensures the stability of the connection. When the operator rotates the movable sleeve 331 to move it to the right, the movable clamping ring 341 will also move to the left, and the transmission force will be transmitted to the clamping card plate 346 through the transmission connecting rod 343 and the special-shaped connecting rod 344, so that they are clamped inwardly, thereby locking the automobile exhaust pipe. On the contrary, when the movable sleeve 331 moves to the left, the clamping card plate 346 will be loosened, releasing the automobile exhaust pipe and releasing the locked state.

[0040] A layer of rubber pad 347 is attached to the bottom surface of the clamping card plate 346. The main function of the rubber pad 347 is to protect the surface of the automobile exhaust pipe from damage. The metal clamping card plate 346 directly contacts the exhaust pipe and may scratch or carve into the surface of the exhaust pipe during the clamping process, while the rubber pad 347 can provide a layer of buffer to reduce the risk of such damage. At the same time, the rubber pad 347 can increase the friction force at the connection, improve the anti-slip effect, and ensure the tight fit and stable clamping force of the clamping card plate 346.

[0041] Limiting blocks 3411 are provided on both the upper and lower sides of the inner wall of the movable collar 341, and a limiting slide groove 352 for accommodating the limiting blocks 3411 is provided on the surface of the sleeve 35, and the limiting blocks 3411 are inserted into the limiting slide groove 352. This design limits the movable collar 341 through the limiting blocks 3411 and the limiting slide groove 352, and can accurately control the position of the movable collar 341 on the sleeve 35, prevent the movable collar 341 from rotating in the circumferential direction, ensure the stable operation of the locking assembly 34, and improve the reliability of the locking assembly 34.

[0042] Ear plates 3412 are fixed on both sides of the upper side of the ring surface of the movable collar 341, and a slide plate 3413 is fixed on the bottom surface of the ear plates 3412. A ring groove 3311 for accommodating the slide plate 3413 is opened on the right side of the ring surface of the movable sleeve 331, and the slide plate 3413 is inserted into the ring groove 3311. This design can achieve a stable connection between the movable collar 341 and the movable sleeve 331 through the cooperation of the ear plates 3412, the slide plate 3413 and the ring groove 3311, so that the movable collar 341 can move with the activity without rotating.

[0043] The working principle of the motor vehicle exhaust detection device is as follows: the operator holds the anti-skid rubber sleeve 32 on the stainless steel gas collecting pipe 31, aligns the stainless steel gas collecting pipe 31 with the exhaust pipe of the motor vehicle, and makes the gas collecting head 36 clamped on the automobile exhaust pipe, and then rotates the movable sleeve 331 through the handle 333, so that it moves to the right on the sleeve 35 through the thread, and transmits the transmission force to the clamping card plate 346 through the hinge head 342, the transmission connecting rod 343 and the special-shaped connecting rod 344, pushing the clamping card plate 346 to clamp inward, thereby locking the automobile exhaust pipe. In this process, the limit block 3411 on the inner wall of the movable clamp ring 341 will slide in the limit slide groove 352 on the surface of the sleeve 35, ensuring that the movable clamp ring 341 will not produce circumferential rotation and remain stable. When the stainless steel gas collecting pipe 31 is firmly connected to the automobile exhaust pipe through the locking assembly 34, the exhaust detection work can be carried out. The exhaust gas enters the stainless steel collecting pipe 31 through the collecting head 36, and then is transmitted to the exhaust gas detector 1 through the connecting hose 2 for analysis. After the test is completed, the operator moves the sleeve 331 in the reverse direction to move it to the left, so that the clamping plate 346 is loosened, thereby releasing the automobile exhaust pipe. Then, the operator removes the stainless steel collecting pipe 31 from the automobile exhaust pipe.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A motor vehicle exhaust gas detection device, comprising an exhaust gas detection machine (1), characterized in that: The right side of the exhaust gas detector (1) is connected to a connecting hose (2), and the end of the connecting hose (2) is connected to a quick connection mechanism (3); The quick connection mechanism (3) comprises a stainless steel gas collecting pipe (31), an adjustment component (33), a locking component (34), a sleeve (35) and a gas collecting head (36); the stainless steel gas collecting pipe (31) is fixedly connected to the end of the connecting hose (2); the stainless steel gas collecting pipe (31) is annularly fixedly sleeved with a sleeve (35); the adjustment component (33) is sleeved on the sleeve (35); the locking component (34) is arranged on the right side of the adjustment component (33); and a gas collecting head (36) with a conical structure made of rubber is arranged at the right end inside the stainless steel gas collecting pipe (31).

2. The motor vehicle exhaust gas detection device according to claim 1, characterized in that: An anti-slip rubber sleeve (32) is sleeved on the annular surface of the stainless steel gas collecting pipe (31), and the anti-slip rubber sleeve (32) is located on the left side of the sleeve (35).

3. The motor vehicle exhaust gas detection device according to claim 1, characterized in that: The adjustment component (33) is composed of a movable sleeve (331) and a handle (333); the movable sleeve (331) is sleeved on the sleeve (35); and a plurality of groups of handles (333) are evenly arranged on the annular surface of the movable sleeve (331).

4. The motor vehicle exhaust gas detection device according to claim 3, characterized in that: An internal thread (332) is formed on the inner wall of the movable sleeve (331), an external thread (351) is formed on the left side of the outer surface of the sleeve (35), and the movable sleeve (331) and the sleeve (35) are screwed together via threads.

5. The motor vehicle exhaust gas detection device according to claim 1, characterized in that: The locking assembly (34) comprises a movable collar (341), a hinged joint (342), a transmission connecting rod (343), a special-shaped connecting rod (344), a fixed collar (345) and a clamping plate (346); the movable collar (341) and a movable sleeve (331) are arranged on the sleeve (35) and are located on the right side of the movable sleeve (331); a fixed collar (345) is arranged on the right side of the movable collar (341), and the fixed collar (345) is fixedly sleeved on the stainless steel gas collecting pipe (31); the fixed collar (345) and the movable sleeve (331) are arranged ... 45) A plurality of groups of arc-shaped clamping plates (346) are evenly arranged in the circumferential direction on the right side, the upper surface of the clamping plate (346) is movably connected to a special-shaped connecting rod (344) via a hinge joint (342), the left end of the special-shaped connecting rod (344) is movably connected to a transmission connecting rod (343) via a pin shaft, the special-shaped connecting rod (344) is movably connected to a fixing ring (345) via a hinge joint (342), and the left end of the transmission connecting rod (343) is rotatably connected to a movable clamping ring (341) via a hinge joint (342).

6. The motor vehicle exhaust gas detection device according to claim 5, characterized in that: A layer of rubber pad (347) is adhered to the bottom surface of the clamping card plate (346).

7. The motor vehicle exhaust gas detection device according to claim 5, characterized in that: Limiting blocks (3411) are provided on both upper and lower sides of the inner wall of the movable clamping ring (341), and a limiting sliding groove (352) for accommodating the limiting block (3411) is provided on the surface of the sleeve (35), and the limiting block (3411) is inserted into the limiting sliding groove (352).

8. The motor vehicle exhaust gas detection device according to claim 5, characterized in that: Ear plates (3412) are fixedly provided on both sides of the upper side of the annular surface of the movable clamping ring (341), a slide plate (3413) is fixedly provided on the bottom surface of the ear plates (3412), and an annular groove (3311) for accommodating the slide plate (3413) is provided on the right side of the annular surface of the movable sleeve (331), and the slide plate (3413) is inserted into the annular groove (3311).

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