Portable waste gas sampling device for environment detection

Abstract

The utility model discloses a portable waste gas sampling device for environment detection, which comprises a sampling device main body and a base, a support rod is arranged on the base, a transmission cavity is arranged in the support rod and the base, a vertical screw rod is arranged in the transmission cavity through a fixing plate, a driving mechanism connected with the vertical screw rod is arranged on the fixing plate, and the driving mechanism is connected with the vertical screw rod. An annular groove is formed in the bottom wall of the base, a plurality of transverse screws are arranged in the annular groove, the transverse screws are sleeved with movable frames in a threaded mode, movable openings are formed in the outer wall of the base, and the ends of the transverse screws extend into the transmission cavity and are connected with vertical screws through transmission mechanisms; and the vertical screw rod is sleeved with a connecting frame connected with the sampling device main body in a threaded manner. Through the arrangement of the supporting rod, the vertical screw rod, the transverse screw rod, the movable frames and the like, when the sampling device main body in the device is placed at a high height, the plurality of movable frames can be unfolded to enhance the supporting stability of the base, and the safety of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas sampling devices, in particular to a portable waste gas sampling device for environmental detection. Background Art

[0002] The exhaust gas sampling device is a device for extracting and collecting exhaust gas. It samples and collects the gas discharged from some smoke exhaust pipes, and then measures its composition to check its pollution level. With the strengthening of modern environmental protection efforts, the existing exhaust gas sampling devices basically meet people's needs, but there are still some problems.

[0003] The existing waste gas collection device needs to be used in conjunction with the support rod and base-type equipment components when fixing and supporting the device. When the height of the sampling device body in the device becomes higher, if the base remains unchanged, the probability of the sampling device body with a higher height toppling over will increase, and the safety of the device cannot be guaranteed. In order to change the current situation, a portable waste gas sampling device for environmental testing is proposed here. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a portable exhaust gas sampling device for environmental detection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A portable exhaust gas sampling device for environmental detection includes a sampling device body and a base, wherein the base is provided with a support rod, and a transmission cavity is jointly provided between the support rod and the base, a vertical screw is provided in the transmission cavity through a fixed plate, and a driving mechanism connected to the vertical screw is provided on the fixed plate, an annular groove is provided on the bottom wall of the base, and a plurality of horizontal screws are provided in the annular groove, a movable frame is provided on a threaded sleeve on the horizontal screw, and a movable opening is provided on the outer wall of the base, the end of the horizontal screw extends into the transmission cavity and is connected to the vertical screw through a transmission mechanism, and the vertical screw threaded sleeve is provided with a connecting frame connected to the sampling device body.

[0007] Preferably, the driving mechanism comprises a driving motor arranged on a fixing plate, and an output shaft of the driving motor rotates through the fixing plate and is fixedly connected to the end of the vertical screw rod.

[0008] Preferably, the transmission mechanism comprises a driving gear arranged at the end of the vertical screw, and the end of the horizontal screw is provided with a transmission gear, and the transmission gear is meshed with the driving gear.

[0009] Preferably, a limiting rod is provided in the annular groove, the limiting rod is arranged parallel to the transverse screw, and the limiting rod slides through the movable frame.

[0010] Preferably, the vertical cross-section of the movable frame is L-shaped, and the bottom wall of the movable frame is flush with the bottom wall of the base.

[0011] Preferably, the connecting frame is U-shaped and connected to the sampling device body via a bolt assembly.

[0012] Beneficial effects of the utility model:

[0013] 1. By arranging components such as support rods, vertical screws, horizontal screws and movable frames, when the sampling device body in the device is placed at a high height, multiple movable frames will be unfolded to enhance the supporting stability of the base, thereby ensuring the safety of the device.

[0014] 2. By setting the transmission gear and the driving gear, the height raising of the sampling device body of the device is synchronized with the unfolding of the movable frame, which ensures the synchronization effect of the device and improves the linkage of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a portable exhaust gas sampling device for environmental detection proposed by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0017] Figure 3 for Figure 1 Schematic diagram of the vertical section structure;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure at B;

[0019] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at location C.

[0020] In the figure: 1 sampling device body, 2 support rod, 3 connecting frame, 4 base, 5 annular groove, 6 horizontal screw, 7 movable frame, 8 movable opening, 9 limit rod, 10 transmission cavity, 11 vertical screw, 12 driving gear, 13 transmission gear, 14 fixing plate, 15 driving motor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-5A portable exhaust gas sampling device for environmental detection includes a sampling device body 1 and a base 4. The sampling device body 1 is a prior art product. Its specific equipment components and working principles are not disclosed in this scheme. You can directly refer to the prior art disclosure. The base 4 is a circular disc. You can refer to the attached figure of this scheme.

[0023] A support rod 2 is provided on the base 4, and a transmission chamber 10 is provided inside the support rod 2 and the base 4. A vertical screw 11 is provided in the transmission chamber 10 through a fixed plate 14, and a driving mechanism connected to the vertical screw 11 is provided on the fixed plate 14. An annular groove 5 is provided on the bottom wall of the base 4, and a plurality of horizontal screws 6 are provided in the annular groove 5. A movable frame 7 is provided on a threaded sleeve on the horizontal screw 6, and a movable opening 8 is provided on the outer wall of the base 4. The end of the horizontal screw 6 extends into the transmission chamber 10 and is connected to the vertical screw 11 through a transmission mechanism. A connecting frame 3 connected to the sampling device body 1 is provided on the threaded sleeve on the vertical screw 11.

[0024] The driving mechanism includes a driving motor 15 arranged on a fixed plate 14. The output shaft of the driving motor 15 rotates through the fixed plate 14 and is fixedly connected to the end of the vertical screw 11. The driving motor 15 is the power device in this scheme. After the driving motor 15 is started, it can directly drive the vertical screw 11 connected to it to rotate.

[0025] The transmission mechanism includes a driving gear 12 arranged at the end of the vertical screw 11, and a transmission gear 13 is provided at the end of the horizontal screw 6. The transmission gear 13 is meshed with the driving gear 12. The driving gear 12 and the transmission gear 13 in this solution are both bevel gears, and specific reference is made to the accompanying drawings.

[0026] A limit rod 9 is provided in the annular groove 5 , and the limit rod 9 is arranged parallel to the transverse screw 6 . The limit rod 9 slides through the movable frame 7 . The function of the limit rod 9 is to limit the movable frame 7 to prevent it from rotating with the transverse screw 6 .

[0027] The vertical cross-section of the movable frame 7 is L-shaped, and the bottom wall of the movable frame 7 is flush with the bottom wall of the base 4. The L-shaped design is to connect the horizontal screw 6, which is flush with the bottom wall of the base 4 to contact the ground at the same time to provide better support and stability.

[0028] The connecting frame 3 is U-shaped and connected to the sampling device body 1 through a bolt assembly. Its U-shaped design and both ends slide through the inner wall of the transmission cavity 10 and extend to the outside of the support rod 2. Therefore, it has its own limit and will not rotate with the vertical screw 11.

[0029] When the utility model is used, when the device body needs to be used and the height of the sampling device body 1 needs to be adjusted, the driving motor 15 is started. After the driving motor 15 is started, the vertical screw 11 can be driven to rotate. When the vertical screw 11 rotates, the connecting frame 3 installed on the outer wall thread sleeve can move on the vertical screw 11. When the connecting frame 3 rises on the vertical screw 11, the sampling device body 1 can be driven to rise to achieve the height lifting operation. At the same time, the vertical screw 11 can also drive the active gear 12 to rotate. When the active gear 12 rotates, the transmission gear 13 can be driven to rotate. When the transmission gear 13 rotates, the horizontal screw 6 can be driven to rotate. When the horizontal screw 6 rotates, the movable frame 7 on the outer wall can be moved. The movable frame 7 is unfolded to expand the contact area between the base 4 and the ground, thereby ensuring the stability of the device when it is placed on the ground.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable exhaust gas sampling device for environmental detection, comprising a sampling device body (1) and a base (4), characterized in that: The base (4) is provided with a support rod (2), and a transmission cavity (10) is jointly provided inside the support rod (2) and the base (4), a vertical screw rod (11) is provided in the transmission cavity (10) via a fixing plate (14), and a driving mechanism connected to the vertical screw rod (11) is provided on the fixing plate (14), an annular groove (5) is provided on the bottom wall of the base (4), a plurality of horizontal screw rods (6) are provided in the annular groove (5), a movable frame (7) is provided on a threaded sleeve on the horizontal screw rod (6), and a movable opening (8) is provided on the outer wall of the base (4), an end of the horizontal screw rod (6) extends into the transmission cavity (10) and is connected to the vertical screw rod (11) via a transmission mechanism, and a connecting frame (3) connected to a sampling device body (1) is provided on a threaded sleeve on the vertical screw rod (11).

2. A portable exhaust gas sampling device for environmental detection according to claim 1, characterized in that: The driving mechanism comprises a driving motor (15) arranged on a fixing plate (14); an output shaft of the driving motor (15) rotates through the fixing plate (14) and is fixedly connected to the end of the vertical screw rod (11).

3. A portable exhaust gas sampling device for environmental detection according to claim 2, characterized in that: The transmission mechanism comprises a driving gear (12) arranged at the end of the vertical screw (11), and a transmission gear (13) is arranged at the end of the horizontal screw (6), and the transmission gear (13) is meshed with the driving gear (12).

4. A portable exhaust gas sampling device for environmental detection according to claim 3, characterized in that: A limiting rod (9) is provided in the annular groove (5), the limiting rod (9) is arranged in parallel with the transverse screw rod (6), and the limiting rod (9) slides through the movable frame (7).

5. A portable exhaust gas sampling device for environmental detection according to claim 4, characterized in that: The vertical cross-section of the movable frame (7) is L-shaped, and the bottom wall of the movable frame (7) is flush with the bottom wall of the base (4).

6. A portable exhaust gas sampling device for environmental detection according to claim 5, characterized in that: The connecting frame (3) is designed to be U-shaped, and the connecting frame (3) is connected to the sampling device body (1) via a bolt assembly.

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