Off-road mobile machine exhaust detection device

Abstract

This invention discloses a non-road mobile machinery exhaust gas detection device, including an exhaust gas detector, a fixing mechanism, a handle sleeve, a spring I, a conduit, and a connecting mechanism. The handle sleeve houses the spring I, and the spring I houses the conduit. The front end of the conduit is equipped with the fixing mechanism, and the conduit is equipped with a connecting mechanism that connects to the handle sleeve. The connecting mechanism includes a pushing mechanism for pushing the rear end of the spring I. The probe of the exhaust gas detector is located inside the front end of the conduit. The fixing mechanism includes a mounting base, several rotating arms, several torsion springs, an annular disc, a spring II, several insertion mechanisms, several insertion slots, and several shafts. The rear end of the mounting base is equipped with spring II. Compared with existing technologies, this device is easier to install and has improved adaptability.

Description

[Technical Field]

[0001] This invention relates to the technical field of exhaust gas detection, and in particular to the technical field of an exhaust gas detection device for non-road mobile machinery. [Background Technology]

[0002] With the increasingly severe environmental degradation, the country is placing greater emphasis on environmental protection, especially setting higher standards for the control of emissions from mobile sources. Emission testing has become particularly important, as it involves detecting harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and soot emitted from vehicle exhaust. These pollutants pose a serious threat to human health. Mobile sources include motor vehicles and non-road mobile machinery, which mainly includes construction machinery, agricultural machinery, and small general-purpose machinery. In recent years, with industrial transformation and upgrading, and increased efforts to control pollution from coal combustion and motor vehicles, emissions from non-road mobile machinery have become increasingly prominent. Nationwide, the emissions of nitrogen oxides (NOx) and particulate matter (PM) from non-road mobile machinery are now comparable to those from motor vehicles.

[0003] Chinese invention patent application number CN202020875801.3 discloses a non-road mobile machinery exhaust emission detection device, comprising a hollow detection rod. One end of the detection rod is connected to a mounting cavity with multiple detector mounting holes. A positioning mechanism is provided on the end of the detection rod near the mounting cavity. The positioning mechanism includes a positioning ring fixedly sleeved on the detection rod. At least four positioning plates are evenly distributed around the outer circumference of the positioning ring, and the distance from the positioning plate to the center of the positioning ring is equal. A compression spring is provided between each positioning plate and the positioning ring. A roller is rotatably connected to the side of the positioning plate away from the compression spring, and the axis of the roller is perpendicular to the axis of the detection rod. A fixing mechanism is provided on the end of the detection rod away from the mounting cavity to fix the detection rod to the exhaust pipe of the non-road mobile machinery. This device can replace manual detection, avoid prolonged manual proximity to the exhaust pipe, and facilitate continuous detection over a longer period of time, thereby effectively improving the accuracy of the detection values. When using the above invention, the detector is installed on the mounting cavity, and the four positioning plates are compressed to extend the right end of the detection rod into the exhaust pipe and push it into the exhaust pipe to the preset detection position. After extending into the exhaust pipe, multiple rollers abut against the inner wall of the exhaust pipe. Combined with the force of multiple compression springs, the detection rod is flexibly centered in the exhaust pipe, preventing the mounting cavity from being misaligned, thus effectively ensuring the normal detection of the detector. However, there are two drawbacks: First, installation requires manual intervention to compress the four positioning plates, making installation inconvenient; second, the positioning ring has at least four positioning plates evenly distributed along its outer circumference, each with a compression spring between it and the positioning ring, and the positioning plates are rolled by rollers, resulting in a large positioning mechanism that reduces adaptability. [Summary of the Invention]

[0004] The purpose of this invention is to solve the problems in the prior art and to propose a non-road mobile machinery exhaust gas detection device that is easy to install and has improved adaptability.

[0005] To achieve the above objectives, this invention proposes a non-road mobile machinery exhaust gas detection device, comprising an exhaust gas detector, a fixing mechanism, a handle sleeve, a spring I, a conduit, and a connecting mechanism. The handle sleeve houses the spring I, and the spring I houses the conduit. The front end of the conduit is equipped with a fixing mechanism, and the conduit is equipped with a connecting mechanism that connects to the handle sleeve. The connecting mechanism includes a pushing mechanism for pushing the rear end of the spring I. The probe of the exhaust gas detector is located inside the front end of the conduit. The fixing mechanism includes a mounting base, several rotating arms, several torsion springs, an annular disk, a spring II, several insertion mechanisms, several insertion slots, and several shafts. The rear end of the mounting base is equipped with spring II, and the rear end of spring II is equipped with an annular disk. The mounting base is equipped with shafts surrounding the annular disk. Each shaft is equipped with a rotating arm, and each shaft is fitted with a torsion spring. The two ends of the torsion springs are fixedly connected to the mounting base and the rotating arms, respectively. The connection ends of the rotating arms and shafts are equipped with insertion mechanisms. The annular disk is equipped with insertion slots corresponding to the insertion mechanisms.

[0006] Preferably, the connecting mechanism further includes a support, several connecting arms, a connecting ring, and several positioning bodies. The support is provided with connecting arms, the front end of the connecting arms is provided with a connecting ring, the inner ring of the connecting ring is provided with a positioning body, and the front end of the support is provided with a pushing mechanism sleeved on the guide tube.

[0007] Preferably, the pushing mechanism includes a sleeve on which a threaded pushing body is fitted.

[0008] Preferably, the outer peripheral surface of the pusher is provided with anti-slip protrusions.

[0009] Preferably, the outer ring surface of the handle sleeve is provided with a sliding groove that corresponds to and cooperates with the positioning body, and a positioning groove that cooperates with the positioning body is provided on one side of the sliding groove.

[0010] Preferably, the end of the rotating arm away from the annular disk is provided with a clamping head.

[0011] Preferably, the clamping head is an elastic rubber clamping head.

[0012] Preferably, the rear end of the mounting base is provided with a receiving groove for accommodating the annular disc and spring II.

[0013] Preferably, the rotating arm is arc-shaped, and when the rotating arm is fixedly connected to the insertion slot through the insertion mechanism, the rotating arm does not extend beyond the circumference of the mounting base.

[0014] Preferably, the insertion mechanism includes a screw body, a screwing head, and a support body. The screw body passes through the support body and is threadedly connected to it. The screwing head is provided at the rear end of the screw body.

[0015] The beneficial effects of this invention are as follows: This invention uses a plug-in mechanism to insert into a corresponding plug-in slot to prevent the rotating arm from rotating and to position it. The rotating arm is hidden at the rear end of the mounting base, greatly reducing the size of the fixing mechanism. Furthermore, no manual intervention is required when entering the exhaust pipe. After entering the exhaust pipe, since the fixing mechanism is not in a fixed working state, it is convenient to adjust the position of the probe inside the exhaust pipe. Compared with the prior art, it is easier to install and has improved adaptability.

[0016] When the fixing mechanism is working, the pushing mechanism pushes the spring I forward, and the spring I pushes the annular disk forward, causing the insertion mechanism to disengage from the corresponding insertion slot. At this time, the rotating arm rotates under the action of the torsion spring, and the top end of the rotating arm presses and fixes itself on the inner wall of the exhaust pipe, thereby fixing the probe and making the fixing operation convenient.

[0017] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0018] Figure 1 This is a schematic diagram of the structure of a non-road mobile machinery exhaust gas detection device according to the present invention;

[0019] Figure 2 This is a side view of the fixed mechanism;

[0020] Figure 3 This is a partial top view of a non-road mobile machinery exhaust gas detection device according to the present invention.

[0021] In the diagram: 1-Exhaust gas detector, 2-Fixing mechanism, 3-Handle cover, 4-Spring I, 5-Conduit, 6-Connecting mechanism, 7-Slide groove, 8-Positioning groove, 9-Tightening head, 21-Mounting base, 22-Rotating arm, 23-Torsion spring, 24-Annular disc, 25-Spring II, 26-Plug-in mechanism, 27-Plug-in groove, 28-Shaft, 29-Receiving groove, 61-Pushing mechanism, 62-Support, 63-Connecting arm, 64-Connecting ring, 65-Positioning body, 611-Sleeve, 612-Pushing body, 613-Anti-slip protrusion, 261-Screw body, 262-Tightening head, 263-Support.

Detailed Implementation Methods

[0022] See Figure 1 , Figure 2 and Figure 3This invention discloses a non-road mobile machinery exhaust gas detection device, comprising an exhaust gas detector 1, a fixing mechanism 2, a handle sleeve 3, a spring I4, a conduit 5, and a connecting mechanism 6. The handle sleeve 3 houses the spring I4, and the spring I4 houses the conduit 5. The front end of the conduit 5 is provided with the fixing mechanism 2, and the conduit 5 is provided with the connecting mechanism 6 connected to the handle sleeve 3. The connecting mechanism 6 includes a pushing mechanism 61 for pushing the rear end of the spring I4. The probe of the exhaust gas detector 1 is located inside the front end of the conduit 5. The fixing mechanism 2 includes a mounting base 21, several rotating arms 22, several torsion springs 23, an annular disc 24, and a spring II 25. The connection mechanism 6 comprises several insertion mechanisms 26, several insertion slots 27, and several shafts 28. A spring II 25 is provided at the rear end of the mounting base 21, and an annular disk 24 is provided at the rear end of the spring II 25. Shafts 28 are arranged around the annular disk 24 on the mounting base 21. Each shaft 28 is provided with a rotating arm 22, and a torsion spring 23 is sleeved on each shaft 28. The two ends of the torsion spring 23 are fixedly connected to the mounting base 21 and the rotating arm 22, respectively. Insertion mechanisms 26 are provided at the connection ends of the rotating arms 22 and the shafts 28. Insertion slots 27, corresponding one-to-one with the insertion mechanisms 26, are provided on the annular disk 24. The connection mechanism 6 also includes a support. 62. A plurality of connecting arms 63, connecting rings 64, and positioning bodies 65. The support 62 is provided with connecting arms 63, the front end of each connecting arm 63 is provided with a connecting ring 64, and the inner ring of the connecting ring 64 is provided with positioning bodies 65. The front end of the support 62 is provided with a pushing mechanism 61 sleeved on the guide tube 5. The pushing mechanism 61 includes a sleeve 611, on which a threaded pushing body 612 is sleeved. The outer circumferential surface of the pushing body 612 is provided with anti-slip protrusions 613. The outer ring surface of the handle sleeve 3 is provided with sliding grooves 7 that correspond one-to-one with and cooperate with the positioning bodies 65. One side of the sliding grooves 7 is spaced apart from the positioning bodies 65. The rotating arm 22 is provided with a clamping head 9 at the end away from the annular disk 24. The clamping head 9 is an elastic rubber clamping head. The rear end of the mounting base 21 is provided with a receiving groove 29 for accommodating the annular disk 24 and the spring II 25. The rotating arm 22 is arc-shaped. When the rotating arm 22 is fixedly connected to the insertion groove 27 through the insertion mechanism 26, the rotating arm 22 does not exceed the circumference of the mounting base 21. The insertion mechanism 26 includes a screw body 261, a screwing head 262 and a support body 263. The screw body 261 passes through the support body 263 and is threadedly connected to it. The rear end of the screw body 261 is provided with a screwing head 262.

[0023] The working process of this invention:

[0024] In operation, the exhaust gas detection device for non-road mobile machinery of the present invention rotates counterclockwise on the support 62, causing the connecting arm 63 to rotate. The connecting arm 63, through the connecting ring 64, causes the positioning body 65 to enter the corresponding slide groove 7 from the corresponding positioning groove 8. Then, the support 62 is pulled forward or backward, causing the guide tube 5 to move forward or backward. The guide tube 5 causes the distance between the fixing mechanism 2 and the handle sleeve 3 to be adjusted. After the adjustment is completed, the support 62 is rotated clockwise, causing the connecting arm 63 to rotate. The connecting arm 63, through the connecting ring 64, causes the positioning body 65 to enter the corresponding positioning groove 8 from the corresponding slide groove 7. Then, the fixing mechanism 2 is inserted into the exhaust pipe. Then, the pushing body 612 is rotated forward, pushing the spring I4 forward. The spring I pushes the annular disk 24 forward, causing the insertion mechanism 26 to disengage from the corresponding insertion groove 27. At this time, the rotating arm 22 rotates under the action of the torsion spring 23. The rotating arm 22 causes the tightening head 9 to press and fix on the inner wall of the exhaust pipe, thereby fixing the probe.

[0025] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A device for detecting exhaust emissions from non-road mobile machinery, characterized in that: The device includes an exhaust gas detector (1), a fixing mechanism (2), a handle (3), a spring I (4), a conduit (5), and a connecting mechanism (6). The handle (3) houses the spring I (4), and the spring I (4) houses the conduit (5). The front end of the conduit (5) is equipped with the fixing mechanism (2), and the conduit (5) is equipped with a connecting mechanism (6) that connects to the handle (3). The connecting mechanism (6) includes a pushing mechanism (61) for pushing the rear end of the spring I (4). The probe of the exhaust gas detector (1) is located inside the front end of the conduit (5). The fixing mechanism (2) includes a mounting base (21), several rotating arms (22), several torsion springs (23), an annular disc (24), a spring II (25), and several... The assembly includes a dry plug-in mechanism (26), several plug-in slots (27), and several shafts (28). The rear end of the mounting base (21) is provided with a spring II (25), and the rear end of the spring II (25) is provided with an annular disk (24). The mounting base (21) is provided with shafts (28) arranged around the annular disk (24). Each shaft (28) is provided with a rotating arm (22), and each shaft (28) is fitted with a torsion spring (23). The two ends of the torsion spring (23) are fixedly connected to the mounting base (21) and the rotating arm (22) respectively. The connection ends of the rotating arm (22) and the shaft (28) are provided with plug-in mechanisms (26). The annular disk (24) is provided with plug-in slots (27) that correspond one-to-one with the plug-in mechanisms (26).

2. The exhaust gas detection device for non-road mobile machinery as described in claim 1, characterized in that: The connecting mechanism (6) further includes a support (62), a plurality of connecting arms (63), a connecting ring (64) and a plurality of positioning bodies (65). The support (62) is provided with connecting arms (63), the front end of the connecting arm (63) is provided with a connecting ring (64), the inner ring of the connecting ring (64) is provided with positioning bodies (65), and the front end of the support (62) is provided with a pushing mechanism (61) sleeved on the guide tube (5).

3. The exhaust gas detection device for non-road mobile machinery as described in claim 2, characterized in that: The pushing mechanism (61) includes a sleeve (611) on which a threaded pushing body (612) is sleeved.

4. The exhaust gas detection device for non-road mobile machinery as described in claim 3, characterized in that: The outer peripheral surface of the pusher (612) is provided with anti-slip protrusions (613).

5. The exhaust gas detection device for non-road mobile machinery as described in claim 2, characterized in that: The outer ring surface of the handle sleeve (3) is provided with a sliding groove (7) that corresponds to and cooperates with the positioning body (65), and a positioning groove (8) that cooperates with the positioning body (65) is provided on one side of the sliding groove (7).

6. The exhaust gas detection device for non-road mobile machinery as described in claim 1, characterized in that: The rotating arm (22) has a clamping head (9) at the end away from the annular disk (24).

7. The exhaust gas detection device for non-road mobile machinery as described in claim 6, characterized in that: The tightening head (9) is an elastic rubber tightening head.

8. The exhaust gas detection device for non-road mobile machinery as described in claim 1, characterized in that: The rear end of the mounting base (21) is provided with a receiving groove (29) for accommodating the annular disk (24) and the spring II (25).

9. The exhaust gas detection device for non-road mobile machinery as described in claim 1, characterized in that: The rotating arm (22) is arc-shaped. When the rotating arm (22) is fixedly connected to the insertion slot (27) through the insertion mechanism (26), the rotating arm (22) does not extend beyond the circumference of the mounting base (21).

10. A non-road mobile machinery exhaust gas detection device as described in any one of claims 1 to 9, characterized in that: The insertion mechanism (26) includes a screw body (261), a screwing head (262) and a support body (263). The screw body (261) passes through the support body (263) and is threadedly connected to it. The screw body (261) has a screwing head (262) at its rear end.

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