Motor vehicle exhaust emission monitoring equipment

Abstract

The utility model discloses motor vehicle exhaust emission monitoring equipment, which relates to the technical field of detection equipment and comprises a connecting pipe, a sleeve is fixedly mounted on the connecting pipe, and a support component is arranged in the sleeve. The supporting assembly comprises a rotating pipe, a second through hole penetrates through the rotating pipe, the rotating pipe is rotationally arranged on the connecting pipe through the second through hole, a two-way thread is fixed to the outer side of the rotating pipe, moving rings are spirally connected to the two ends of the two-way thread, connecting blocks are fixed to the two ends of each moving ring, and connecting rods are rotationally connected into the connecting blocks at the two ends of each moving ring; according to the tail gas pipe connecting device, the supporting assembly is arranged, the included angle between the two connecting rods is made to be smaller by means of opposite movement of the two moving rings in the supporting assembly, then the supporting plate is pushed to be attached to the inner wall of a tail gas pipe, and the connecting pipe is fixed into the tail gas pipe; and the stability during detection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a motor vehicle tail gas emission monitoring device. Background Art

[0002] Motor vehicle exhaust emission monitoring equipment is an instrument used to detect the content of various pollutants in motor vehicle exhaust.

[0003] The Chinese utility model patent application number 202321876757.8 provides an automobile exhaust emission detection device. By setting a pin shaft and a coil spring, when the handle needs to be fixed, the lower splint is driven to move by the connecting rod, and the lower splint rotates downward with the pin shaft as the center through the lower connecting block. The lower splint is separated from the upper splint, and the upper and lower splints are placed on the side of the exhaust pipe. The connecting rod is loosened, and the coil spring uses its own elastic force to push the upper and lower splints to move, and the upper and lower splints clamp the exhaust pipe.

[0004] However, during the use of the above-mentioned equipment, it was found that some vehicles now pursue aesthetics, so that the outer end of their exhaust pipe is set to a streamlined curve. When the outer edge of the tail pipe has a complex curve, the clamping surface of the splint is difficult to completely fit with the surface of the tail pipe, which makes it easy for effective clamping to fail. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present invention provides a motor vehicle exhaust emission monitoring device, which solves the problem raised in the background technology that when the outer edge of the tail pipe has a complex curved surface, the clamping surface of the splint is difficult to fully fit with the surface of the tail pipe, thereby easily leading to an inability to effectively clamp.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a motor vehicle exhaust emission monitoring device, comprising a detection head, the detection head is fixed to one end of an extension rod, the extension rod is slidably sleeved in the middle of a connecting pipe, the extension rod and the connecting pipe are connected by a spring, one end of the connecting pipe is fixedly connected to a connector, a sleeve is fixedly mounted on the connecting pipe, a through hole one is formed in the sleeve, the connecting pipe passes through the through hole one, and a support assembly is provided inside the sleeve;

[0007] The support assembly includes a rotating tube, a through hole 2 is passed through the rotating tube, the through hole 2 is adapted to the connecting tube, the rotating tube is rotatably set on the connecting tube through the through hole 2, a two-way thread is fixed on the outer side of the rotating tube, both ends of the two-way thread are spirally connected with a moving ring, both ends of the moving ring are fixed with a connecting block, the connecting blocks at both ends of the moving ring are rotatably connected with a connecting rod, the moving ring is connected to the support plate through the connecting rod, and the connecting rod is rotatably connected to the support plate.

[0008] Preferably, a rotation groove is provided on the inner wall of the sleeve near one end of the through hole, the rotation groove is adapted to one end of the rotating tube, and the rotation groove is rotatably connected to the rotating tube.

[0009] Preferably, sliding grooves are provided on both sides of the sleeve, and the connecting blocks on both sides of the movable ring are adapted to the sliding grooves and are slidably arranged in the sliding grooves.

[0010] Preferably, a handle is fixedly mounted on the other end of the rotating tube, and anti-slip grooves are provided on the circumference of the handle, and the handle is provided on the outside of the sleeve.

[0011] Preferably, a limit plate is provided at intervals on one side of the handle, the limit plate is fixed on the rotating tube, and the limit plate is provided inside one end of the sleeve away from the through hole.

[0012] The utility model provides a motor vehicle exhaust emission monitoring device, which has the following beneficial effects:

[0013] (1) The present invention sets a support assembly and utilizes the two moving rings in the support assembly to move toward each other, so as to reduce the angle between the two connecting rods, thereby pushing the support plate to fit the inner wall of the exhaust pipe, thereby fixing the connecting pipe inside the exhaust pipe and ensuring stability during detection.

[0014] (2) The present invention fixes the connecting pipe from the inside of the tailpipe by providing a support assembly. Combined with the telescopic support plate, it can adapt to tailpipes of different shapes and has greater versatility.

[0015] (3) The present invention limits the rotating tube by providing a handle and a limit plate, so that the rotating tube can only rotate in the sleeve, thereby preventing the rotating tube from detaching from the sleeve.

[0016] This solves the problem that when the outer edge of the tail pipe has a complex curved surface, the clamping surface of the clamping plate is difficult to completely fit with the surface of the tail pipe, which easily leads to an inability to effectively clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram showing the overall structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A diagram showing the middle casing;

[0019] Figure 3 For this utility model Figure 2 Diagram showing the internal structure of the middle casing;

[0020] Figure 4 For this utility model Figure 2Structural display diagram of the middle support assembly.

[0021] In the figure, 1. detection head; 2. extension rod; 3. spring; 4. connecting tube; 5. sleeve; 51. through hole 1; 52. rotating groove; 53. slide groove; 6. support assembly; 61. rotating tube; 62. through hole 2; 63. two-way thread; 64. moving ring; 65. connecting rod; 66. limit plate; 67. handle; 7. connector; 8. support plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0023] See also Figures 1-4 A motor vehicle exhaust emission monitoring device includes a detection head 1, which is fixed to one end of an extension rod 2. The extension rod 2 is slidably sleeved in the middle of a connecting pipe 4. The extension rod 2 and the connecting pipe 4 are connected by a spring 3. One end of the connecting pipe 4 is fixedly connected to a connector 7. A sleeve 5 is fixedly installed on the connecting pipe 4. A through hole 51 is formed in the sleeve 5. The connecting pipe 4 passes through the through hole 51. A support assembly 6 is provided inside the sleeve 5.

[0024] The support assembly 6 includes a rotating tube 61, a second through-hole 62 is passed through the rotating tube 61, and the second through-hole 62 is adapted to the connecting tube 4. The rotating tube 61 is rotatably arranged on the connecting tube 4 through the second through-hole 62. A two-way thread 63 is fixed on the outer side of the rotating tube 61. Both ends of the two-way thread 63 are spirally connected to a moving ring 64. Both ends of the moving ring 64 are fixed with a connecting block. Connecting rods 65 are rotatably connected to the connecting blocks at both ends of the moving ring 64. The moving ring 64 is connected to the support plate 8 through the connecting rod 65. The connecting rod 65 is rotatably connected to the support plate 8;

[0025] Slide grooves 53 are formed on both sides of the sleeve 5 , and the connecting blocks on both sides of the movable ring 64 are adapted to the slide grooves 53 and are slidably arranged in the slide grooves 53 .

[0026] Specifically, the connecting tube 4 passes through the through hole 1 51 and the through hole 2 62 in sequence, and is adapted to the through hole 1 51 and the through hole 2 62. The through hole 2 62 can be used to realize the rotation of the rotating tube 61 on the outer surface of the connecting tube 4. The fitting of the through hole 1 51 and the connecting tube 4 is used to fix the sleeve 5 to the connecting tube 4. The outer side of the support plate 8 is semicircular, which can achieve the greatest possible fit with the circular inner wall of the exhaust pipe. At the same time, the outer side of the support plate 8 is made of rubber. The rubber has good flexibility and can be deformed to a certain extent according to the shape of the inner wall of the exhaust pipe, thereby achieving better fit. At the same time, the rubber has a high friction coefficient and can generate a large friction force with the inner wall of the exhaust pipe, thereby avoiding the displacement of the support plate 8 during support.

[0027] When the rotating tube 61 is controlled to rotate, the bidirectional thread 63 on the rotating tube 61 rotates with the rotating tube 61, and the bidirectional thread 63 is spirally connected to the moving ring 64. At the same time, the connecting blocks at both ends of the moving ring 64 are slidably set in the slide groove 53. The slide groove 53 restricts the connecting blocks so that when the bidirectional thread 63 rotates, the moving rings 64 spirally connected at both ends move toward each other along the slide groove 53, thereby reducing the angle between the connecting rods 65 rotatably connected on the moving rings 64 at both ends, causing the connecting rod 65 to gradually rotate to be perpendicular to the rotating tube 61, and then pushing the outer side of the support plate 8 to fit the inner wall of the exhaust pipe, thereby fixing the connecting pipe 4 from the inside of the exhaust pipe, making it convenient for the detection head 1 in the detection equipment to stably collect exhaust information. At the same time, the telescopic support of the support plate 8 can be applied to exhaust pipes of different shapes, and is more versatile. Example

[0028] To achieve the limitation of support assembly 6, please refer to Figures 1-4 On the basis of Example 1, a rotation groove 52 is provided on the inner wall of the sleeve 5 near one end of the through hole 1 51 , and the rotation groove 52 is adapted to one end of the rotation tube 61 , and the rotation groove 52 is rotatably connected to the rotation tube 61 ;

[0029] A handle 67 is fixedly mounted on the other end of the rotating tube 61. Anti-slip grooves are provided on the circumference of the handle 67. The handle 67 is provided on the outside of the sleeve 5.

[0030] A limit plate 66 is spaced apart on one side of the handle 67 . The limit plate 66 is fixed on the rotating tube 61 . The limit plate 66 is disposed inside the end of the sleeve 5 away from the through hole 1 51 .

[0031] Specifically, one end of the rotating tube 61 is set in the rotating groove 52, and the side wall of the rotating groove 52 is used to limit the rotating tube 61, so that the rotating tube 61 rotates in the rotating groove 52, and at the same time, the through hole 2 62 on the rotating tube 61 corresponds to the through hole 1 51, and the user can control the rotating tube 61 to rotate by rotating the handle 67. The handle 67 is set on the outside of the sleeve 5, and the handle 67 is installed with anti-slip grooves, which can increase the friction between the user's hand and the handle 67, making it easier for the user to control the rotation of the handle 67. The limit plate 66 fixed on the rotating tube 61 is set inside the sleeve 5. The diameter of the limit plate 66 is larger than the diameter of the circular hole at one end of the sleeve 5, so that the handle 67 and the limit plate 66 are limited by one end of the sleeve 5, thereby further restricting the support assembly 6, enabling the rotating tube 61 in the support assembly 6 to rotate in the sleeve 5, while avoiding horizontal movement, thereby preventing the rotating tube 61 in the support assembly 6 from detaching from the sleeve 5.

[0032] Working principle: The user inserts the detection head 1 on the detection equipment into the interior of the exhaust pipe to collect exhaust gas. In order to ensure the stability of the detection head 1 inside the exhaust pipe, the sleeve 5 on the connecting pipe 4 is partially inserted into the exhaust pipe. The user rotates the handle 67 so that the handle 67 drives the rotating tube 61 to rotate in the sleeve 5, thereby causing the two-way thread 63 on the rotating tube 61 to rotate. The two-way thread 63 is spirally connected to the moving ring 64, so that during the rotation of the rotating tube 61, the moving rings 64 at both ends of the two-way thread 63 move toward each other along the slide groove 53 through the connecting block, so that the angle between the connecting rod 65 rotatably connected on the moving ring 64 gradually becomes smaller, and the support plate 8 is pushed to fit against the inner wall of the exhaust pipe, so that the connecting tube 4 is fixed in the exhaust pipe with the support of the support plate 8, which facilitates the detection head 1 to stably collect exhaust gas information.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A motor vehicle exhaust emission monitoring device, comprising a detection head (1), wherein the detection head (1) is fixed to one end of an extension rod (2), wherein the extension rod (2) is slidably sleeved in the middle of a connecting pipe (4), wherein the extension rod (2) and the connecting pipe (4) are connected via a spring (3), and wherein one end of the connecting pipe (4) is fixedly connected to a connecting head (7), and wherein: A sleeve (5) is fixedly mounted on the connecting pipe (4), a through hole (51) is provided through the sleeve (5), the connecting pipe (4) passes through the through hole (51), and a support assembly (6) is provided inside the sleeve (5); The support assembly (6) includes a rotating tube (61), a second through hole (62) is passed through the rotating tube (61), and the second through hole (62) is adapted to the connecting tube (4). The rotating tube (61) is rotatably arranged on the connecting tube (4) through the second through hole (62). A bidirectional thread (63) is fixed on the outer side of the rotating tube (61), and both ends of the bidirectional thread (63) are spirally connected to a moving ring (64). Both ends of the moving ring (64) are fixed with a connecting block. Connecting rods (65) are rotatably connected to the connecting blocks at both ends of the moving ring (64). The moving ring (64) is connected to the supporting plate (8) through the connecting rod (65), and the connecting rod (65) is rotatably connected to the supporting plate (8).

2. The vehicle exhaust emission monitoring device according to claim 1, characterized in that: A rotation groove (52) is provided on the inner wall of the sleeve (5) at one end close to the through hole (51), and the rotation groove (52) is adapted to one end of the rotation tube (61), and the rotation groove (52) is rotationally connected to the rotation tube (61).

3. The vehicle exhaust emission monitoring device according to claim 2, characterized in that: Slide grooves (53) are provided on both sides of the sleeve (5), and the connecting blocks on both sides of the movable ring (64) are adapted to the slide grooves (53) and are slidably arranged in the slide grooves (53).

4. The vehicle exhaust emission monitoring device according to claim 3, characterized in that: A handle (67) is fixedly mounted on the other end of the rotating tube (61), and anti-slip grooves are provided on the circumference of the handle (67). The handle (67) is arranged on the outside of the sleeve (5).

5. The vehicle exhaust emission monitoring device according to claim 4, characterized in that: A limiting plate (66) is provided at intervals on one side of the handle (67), the limiting plate (66) being fixed on the rotating tube (61), and the limiting plate (66) being provided inside the end of the sleeve (5) away from the through hole (51).

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