Motor vehicle tail gas sampling device

Abstract

The utility model relates to the technical field of tail gas sampling, and discloses a motor vehicle tail gas sampling device which comprises a butt joint mechanism, the butt joint mechanism comprises a butt joint pipe, one end of the butt joint pipe is fixedly connected with a limiting disc, one side of the limiting disc is fixedly connected with a rubber conical cylinder, and two sets of mounting grooves are symmetrically formed in the outer side of the limiting disc; the limiting mechanism comprises a limiting ring; through the cooperation of the butt joint mechanism, the limiting mechanism and the clamping mechanism, a rubber conical barrel can be conveniently inserted into motor vehicle exhaust barrels of different specifications, meanwhile, the angle of the clamping mechanism is changed through position adjustment of a limiting ring, and then a pressing block abuts against the outer wall of the exhaust barrel; therefore, the clamping mechanism is fastened on the outer wall of the exhaust funnel by locking the limiting mechanism, the stability of the rubber conical barrel mounted in the exhaust funnel is improved, tail gas can be conveniently collected after a motor vehicle is started, and the tail gas sampling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of exhaust gas sampling, and in particular to an exhaust gas sampling device for a motor vehicle. Background Art

[0002] Exhaust refers to the exhaust gas emitted by motor vehicles or other equipment during operation. Different cars have different smells. Auto repair experts suggest that normal exhaust should be colorless and have no strange smell. However, automobile exhaust with different colors and smells may indicate that the vehicle itself is facing some faults.

[0003] In the prior art, the Chinese application with publication number: CN220170646U discloses a motor vehicle exhaust gas detection sampling device, including a base, a detector body, and a moving tube. A delivery tube is fixedly connected to one side of the detector body, a telescopic tube is fixedly connected to one side of the delivery tube, a connecting tube is fixedly connected to one side of the telescopic tube, a fixing plate is fixedly connected to the connecting tube, a guide tube is fixedly connected to the fixing plate, an external thread is fixedly provided on the guide tube, an internal thread is fixedly provided on the inner ring of the moving tube, a plurality of fixing columns are fixedly connected to one side of the moving tube, a sleeve tube is slidably connected to the connecting tube, and a rubber connecting tube is fixedly connected to the inside of the sleeve tube. The beneficial effects of the application are: the sleeve tube cannot be shaken off when the car starts to vibrate, the connection is firm, the efficiency and quality of exhaust gas detection are improved, and the structure is very simple and the operation is also very simple;

[0004] Although the exhaust gas sampling device in the above technical solution is simple to use, this technical solution only clamps the exhaust pipe by the elasticity of the rubber connecting tube. When there are residual oil stains on the exhaust pipe, the rubber connecting tube may slip, and then there is a risk of slipping under the vibration of vehicle startup. The efficiency of collecting exhaust gas needs to be further improved. Therefore, we need to propose a motor vehicle exhaust gas sampling device. Summary of the invention

[0005] The purpose of the present application is to provide a motor vehicle exhaust sampling device, which uses a conical rubber barrel to be inserted into the exhaust pipe, thereby forming a sealing ring between the rubber barrel and the exhaust pipe, and at the same time uses an external clamping structure to fix the exhaust gas collection device on the exhaust pipe, thereby ensuring the stability of exhaust gas collection and improving the efficiency of exhaust gas collection, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present application provides the following technical solution: a motor vehicle exhaust sampling device, comprising:

[0007] A docking mechanism, the docking mechanism comprising a docking tube, one end of the docking tube is fixedly connected to a limit plate, one side of the limit plate is fixedly connected to a rubber cone, and two groups of mounting grooves are symmetrically opened on the outer side of the limit plate;

[0008] The limiting mechanism comprises a limiting ring, the limiting ring is slidably sleeved on the outside of the butt-jointed pipe, two groups of fixing blocks are symmetrically fixedly connected to the outside of the limiting ring, and rollers are rotatably connected to both sides of the two groups of fixing blocks;

[0009] The clamping mechanism comprises two groups of straight plates, one end of each group of straight plates is fixedly connected with an inclined plate, one side of each group of straight plates is detachably mounted with a clamping block, one end of each side of each straight plate adjacent to the clamping block is fixedly connected with a rotating block, and opposite sides of each group of inclined plates are provided with a trapezoidal slide groove for roller installation.

[0010] Preferably, two groups of guide bosses are symmetrically arranged on the outer side of the butt joint pipe, and multiple groups of limit holes are provided on the opposite sides of the two groups of guide bosses, and the multiple groups of limit holes are arranged at equal intervals.

[0011] Preferably, the inner wall of the limiting ring is symmetrically provided with guide grooves for sliding insertion of two sets of guide bosses, the outer side of the limiting ring is symmetrically provided with screw holes connected to the guide grooves, and locking bolts threadedly connected to the limiting holes are inserted into the screw holes.

[0012] Preferably, a hidden hole is provided on one side of the two groups of straight plates opposite to the pressing block, and a fixing bolt threadedly connected to the pressing block is inserted into the hidden hole.

[0013] Preferably, a plurality of positioning holes are provided on one side of the pressing block, and a plurality of positioning blocks are fixedly connected to a side of the straight plate that contacts the pressing block.

[0014] Preferably, both sides of the installation groove are provided with rotation holes for rotational insertion of the rotation block, the outer side of the limit ring is symmetrically fixedly connected with two sets of push-pull frames, and the straight plate is arranged in the inner cavity of the push-pull frame.

[0015] Preferably, an exhaust pipe is inserted into the small opening end of the rubber cone, and the side of the clamping block opposite to the multiple groups of positioning holes is arranged in an arc shape, and the side of the clamping block opposite to the multiple groups of positioning holes contacts the outer side of the exhaust pipe.

[0016] Preferably, the motor vehicle exhaust sampling device also includes a movable seat, the upper surface of which is provided with a detector body, an armrest, a first fixed plate and a second fixed plate, the upper surface of the first fixed plate is fixedly connected with a sleeve for clamping a docking tube, a connecting conduit is installed on one side of the detector body, and a through hole for plugging the connecting conduit is opened on one side of the second fixed plate.

[0017] Preferably, a plurality of groups of anti-slip sleeves are arranged on the outer side of the armrest, the plurality of groups of anti-slip sleeves are arranged at equal intervals, and a plurality of groups of moving wheels are installed on the lower surface of the moving seat.

[0018] Preferably, one end of the connecting conduit is connected to a connecting hose, one end of the connecting hose is connected to a bellows, one end of the bellows is connected to a connecting pipe head, and one end of the connecting pipe head is fixedly connected to a threaded pipe threadedly connected to the docking pipe.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] The present application mainly cooperates between a docking mechanism, a limiting mechanism and a clamping mechanism, and facilitates the insertion of a rubber cone into exhaust pipes of motor vehicles of different specifications. At the same time, the angle of the clamping mechanism is changed by adjusting the position of a limiting ring, so that the clamping block contacts the outer wall of the exhaust pipe, and the clamping mechanism is fastened to the outer wall of the exhaust pipe by locking the limiting mechanism, thereby improving the stability of the rubber cone installed in the exhaust pipe, so as to facilitate the collection of exhaust gas after the motor vehicle is started, thereby improving the efficiency of exhaust gas sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this application.

[0022] Figure 2 This is a schematic diagram of the docking mechanism structure of this application.

[0023] Figure 3 This is a schematic diagram of the limit mechanism structure of this application.

[0024] Figure 4 This is a schematic diagram of the clamping mechanism structure of the present application.

[0025] In the figure: 1, moving seat; 2, detector body; 3, handrail; 4, anti-slip sleeve; 5, first fixing plate; 6, ferrule; 7, second fixing plate; 8, connecting conduit; 9, connecting hose; 10, bellows; 11, connecting pipe head; 12, docking mechanism; 121, docking pipe; 122, guide boss; 123, limit hole; 124, limit plate; 125, mounting groove; 126, rotating hole; 127, rubber cone; 13, limit mechanism; 13 1. Limiting ring; 132. Guide groove; 133. Screw hole; 134. Locking bolt; 135. Push-pull frame; 136. Fixed block; 137. Roller; 14. Clamping mechanism; 141. Straight plate; 142. Inclined plate; 143. Rotating block; 144. Trapezoidal slide groove; 145. Positioning block; 146. Hidden hole; 147. Fixing bolt; 148. Pressing block; 149. Positioning hole; 15. Exhaust pipe; 16. Moving wheel; 17. Threaded pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] See also Figure 1-4 The present application provides a technical solution: a motor vehicle exhaust sampling device, comprising:

[0028] The docking mechanism 12 includes a docking tube 121, one end of which is fixedly connected to a limit plate 124, one side of which is fixedly connected to a rubber cone 127, and two groups of mounting grooves 125 are symmetrically opened on the outer side of the limit plate 124;

[0029] The limiting mechanism 13 includes a limiting ring 131, which is slidably sleeved on the outside of the butt-jointed tube 121. Two groups of fixing blocks 136 are symmetrically fixedly connected to the outside of the limiting ring 131, and rollers 137 are rotatably connected to both sides of the two groups of fixing blocks 136.

[0030] The clamping mechanism 14 includes two groups of straight plates 141, one end of each group of straight plates 141 is fixedly connected with an inclined plate 142, one side of the straight plate 141 is detachably mounted with a clamping block 148, one end of both sides of the straight plate 141 adjacent to the clamping block 148 is fixedly connected with a rotating block 143, and the opposite sides of the two groups of inclined plates 142 are provided with a trapezoidal slide groove 144 for mounting the roller 137.

[0031] Two groups of guide bosses 122 are symmetrically arranged on the outer side of the butt tube 121, and multiple groups of limit holes 123 are provided on the opposite side of the two groups of guide bosses 122. The multiple groups of limit holes 123 are arranged at equal intervals. The guide bosses 122 limit the movement angle of the limit ring 131, and the limit holes 123 facilitate the locking bolts 134 to be screwed in.

[0032] The inner wall of the limiting ring 131 is symmetrically provided with guide grooves 132 for sliding insertion of two sets of guide bosses 122, and the outer side of the limiting ring 131 is symmetrically provided with screw holes 133 connected to the guide grooves 132, and locking bolts 134 threadedly connected to the limiting holes 123 are inserted into the screw holes 133. The locking bolts 134 are screwed into different limiting holes 123, thereby facilitating the fixation of the limiting ring 131 and improving the stability of the clamping block 148 in clamping the exhaust pipe 15.

[0033] Hidden holes 146 are provided on one side of the two groups of straight plates 141 opposite to the clamping block 148. Fixing bolts 147 threadedly connected to the clamping block 148 are inserted into the hidden holes 146. The hidden holes 146 facilitate hiding the fixing bolts 147 and disassembly and assembly of the clamping block 148, thereby improving maintenance efficiency.

[0034] A plurality of positioning holes 149 are provided on one side of the clamping block 148, and a plurality of positioning blocks 145 are fixedly connected to the side of the straight plate 141 that contacts the clamping block 148. The positioning blocks 145 are inserted into the positioning holes 149 to facilitate limiting the angle of the clamping block 148, thereby facilitating the arc surface of the clamping block 148 to fit the outer wall of the exhaust pipe 15, thereby improving the clamping stability.

[0035] Both sides of the installation groove 125 are provided with rotation holes 126 for the rotation block 143 to be rotatably inserted. Two sets of push-pull frames 135 are symmetrically fixedly connected to the outer side of the limit ring 131. The straight plate 141 is arranged in the inner cavity of the push-pull frame 135. The push-pull frame 135 is used to facilitate personnel to apply thrust, so that the limit ring 131 is close to the limit plate 124, which is convenient for the straight plate 141 to flip over with the rotation hole 126 as the axis, so that the clamping block 148 can resist the exhaust pipe 15.

[0036] The exhaust pipe 15 is inserted into the small opening end of the rubber cone 127, and the clamping block 148 is arranged in an arc shape on the side opposite to the multiple groups of positioning holes 149. The clamping block 148 and the multiple groups of positioning holes 149 are in contact with the outer side of the exhaust pipe 15. The rubber cone 127 is arranged in a conical shape, which is convenient for inserting exhaust pipes 15 of different calibers and improves the scope of application.

[0037] The motor vehicle exhaust sampling device also includes a movable seat 1, the upper surface of which is provided with a detector body 2, an armrest 3, a first fixed plate 5 and a second fixed plate 7, the upper surface of the first fixed plate 5 is fixedly connected with a clamping sleeve 6 for clamping the docking tube 121, a connecting tube 8 is installed on one side of the detector body 2, and a through hole for plugging the connecting tube 8 is opened on one side of the second fixed plate 7, and the clamping sleeve 6 is used to facilitate the clamping of the docking mechanism 12, thereby facilitating the storage of the entire device.

[0038] Multiple groups of anti-skid sleeves 4 are arranged on the outer side of the armrest 3, and the multiple groups of anti-skid sleeves 4 are arranged at equal intervals. Multiple groups of moving wheels 16 are installed on the lower surface of the moving base 1. The moving wheels 16 facilitate the rapid movement of the whole, thereby improving the convenience of movement.

[0039] One end of the connecting conduit 8 is connected to a connecting hose 9, one end of the connecting hose 9 is connected to a bellows 10, one end of the bellows 10 is connected to a connecting pipe head 11, one end of the connecting pipe head 11 is fixedly connected to a threaded pipe 17 threadedly connected to a docking pipe 121, so that the connecting hose 9 and the bellows 10 are convenient for bending, thereby facilitating the storage of the entire device.

[0040] When in use, the small end of the rubber cone 127 is inserted into the exhaust pipe 15, and then the outer wall of the rubber cone 127 fits tightly with the exhaust pipe 15, and the limit ring 131 is pushed close to the limit plate 124 through the push-pull frame 135, so that the roller 137 on the fixed block 136 rolls in the trapezoidal slide groove 144, so as to drive the inclined plate 142 and the straight plate 141 to flip with the rotating block 143 as the axis, so that the clamping block 148 on the straight plate 141 contacts the outer wall of the exhaust pipe 15, and then the limit ring 131 is fixed by screwing the locking bolt 134 into the limit hole 123, thereby improving the stability of the rubber cone 127 inserted into the exhaust pipe 15, facilitating the collection and sampling of exhaust gas after the motor vehicle is started, and improving the efficiency of exhaust gas collection.

[0041] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A motor vehicle exhaust sampling device, characterized in that: include: A docking mechanism (12), the docking mechanism (12) comprising a docking tube (121), one end of the docking tube (121) being fixedly connected to a limiting plate (124), one side of the limiting plate (124) being fixedly connected to a rubber cone (127), and two groups of mounting grooves (125) being symmetrically formed on the outer side of the limiting plate (124); A limiting mechanism (13), the limiting mechanism (13) comprising a limiting ring (131), the limiting ring (131) being slidably sleeved on the outside of the butt-jointed tube (121), two groups of fixing blocks (136) being symmetrically fixedly connected to the outside of the limiting ring (131), and rollers (137) being rotatably connected to both sides of the two groups of fixing blocks (136); The clamping mechanism (14) comprises two groups of straight plates (141), one end of each of the two groups of straight plates (141) is fixedly connected to an inclined plate (142), one side of each of the straight plates (141) is detachably mounted with a clamping block (148), one end of each of the two sides of the straight plates (141) adjacent to the clamping block (148) is fixedly connected to a rotating block (143), and opposite sides of each of the two groups of inclined plates (142) are provided with a trapezoidal slide groove (144) for mounting a roller (137).

2. The motor vehicle exhaust sampling device according to claim 1, characterized in that: Two groups of guide bosses (122) are symmetrically arranged on the outer side of the butt joint tube (121), and a plurality of groups of limit holes (123) are provided on opposite sides of the two groups of guide bosses (122), and the plurality of groups of limit holes (123) are arranged at equal intervals.

3. The motor vehicle exhaust sampling device according to claim 2, characterized in that: The inner wall of the limiting ring (131) is symmetrically provided with guide grooves (132) for sliding insertion of two sets of guide bosses (122), and the outer side of the limiting ring (131) is symmetrically provided with screw holes (133) connected to the guide grooves (132), and locking bolts (134) threadedly connected to the limiting holes (123) are inserted into the screw holes (133).

4. The motor vehicle exhaust sampling device according to claim 3, characterized in that: Hidden holes (146) are provided on one side of the two groups of straight plates (141) facing the pressing block (148), and fixing bolts (147) threadedly connected to the pressing block (148) are inserted into the hidden holes (146).

5. The motor vehicle exhaust sampling device according to claim 4, characterized in that: A plurality of groups of positioning holes (149) are provided on one side of the pressing block (148), and a plurality of groups of positioning blocks (145) are fixedly connected to a side of the straight plate (141) that contacts the pressing block (148).

6. The motor vehicle exhaust sampling device according to claim 5, characterized in that: Both sides of the installation groove (125) are provided with rotation holes (126) for rotationally inserting the rotation block (143), the outer side of the limit ring (131) is symmetrically fixedly connected with two sets of push-pull frames (135), and the straight plate (141) is arranged in the inner cavity of the push-pull frame (135).

7. The motor vehicle exhaust sampling device according to claim 6, characterized in that: The small opening end of the rubber cone (127) is plugged with an exhaust pipe (15), and the side of the clamping block (148) opposite to the plurality of positioning holes (149) is arranged in an arc shape, and the side of the clamping block (148) opposite to the plurality of positioning holes (149) contacts the outer side of the exhaust pipe (15).

8. The motor vehicle exhaust sampling device according to claim 7, characterized in that: The invention also comprises a movable seat (1), wherein the upper surface of the movable seat (1) is provided with a detector body (2), an armrest (3), a first fixing plate (5) and a second fixing plate (7), the upper surface of the first fixing plate (5) being fixedly connected with a clamping sleeve (6) for clamping a butt joint pipe (121), a connecting pipe (8) being installed on one side of the detector body (2), and a through hole for plugging the connecting pipe (8) is provided on one side of the second fixing plate (7).

9. The motor vehicle exhaust sampling device according to claim 8, characterized in that: A plurality of groups of anti-slip sleeves (4) are arranged on the outer side of the handrail (3), and the plurality of groups of anti-slip sleeves (4) are arranged at equal intervals. A plurality of groups of moving wheels (16) are installed on the lower surface of the moving seat (1).

10. The motor vehicle exhaust sampling device according to claim 9, characterized in that: One end of the connecting conduit (8) is connected to a connecting hose (9), one end of the connecting hose (9) is connected to a bellows (10), one end of the bellows (10) is connected to a connecting pipe head (11), and one end of the connecting pipe head (11) is fixedly connected to a threaded pipe (17) threadedly connected to the butt pipe (121).

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