Limited space gas detection device

Abstract

The utility model discloses a limited space gas detection device which comprises a detector and a supporting piece, the detector comprises a detection head, a handle and a cable connecting the detection head and the handle, a supporting rod comprises a first rod body and a second rod body which are connected in a sliding mode, the first rod body is connected with the handle, and the second rod body is connected with the detection head. A telescopic belt is connected to one side of the first rod body, a first retaining ring is arranged at the end of the telescopic belt, a first clamping hook is arranged on the other side of the first rod body, a fixing ring is arranged on the second rod body and comprises a first end and a second end, the first end is rotatably connected with the second rod body, and a rotatable second retaining ring is arranged at the second end. A supporting plate is arranged on the second rod body, and a second clamping hook is arranged on the supporting plate. The supporting rod fixes the detector through the telescopic belt and the fixing ring, the position of the detection head can be adjusted through movement or rotation of the supporting rod, adjustment is not limited by a safety net compared with adjustment through movement of a cable, and adjustment is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas detection equipment, and in particular relates to a limited space gas detection device. Background Art

[0002] When conducting gas detection in a limited space such as a gas well, the detection head of the detector needs to be extended into the gas well through the wellhead. The detection head is connected to the handle of the detector through a cable. During detection, the detection head is suspended in the wellhead. At the same time, a safety net needs to be hung at the wellhead to prevent objects from falling into the well. The cable is flexible and the position of the detection head cannot be adjusted directly. The cable needs to be moved to drive the detection head to move, but the safety net limits the movement of the cable, making it difficult to adjust. Utility Model Content

[0003] The purpose of the utility model is to provide a gas detection device which is convenient for adjusting the position of the detection head in view of the above-mentioned technical problems.

[0004] The purpose of the utility model is achieved as follows: a confined space gas detection device comprises a detector and a support rod, the detector comprises a detection head, a handle and a cable connecting the detection head and the handle, the support rod comprises a first rod body and a second rod body which are slidably connected, the first rod body is connected to the handle, the second rod body is connected to the detection head, a telescopic belt is connected to one side of the first rod body, a first buckle is provided at the end of the telescopic belt, a first hook is provided on the other side of the first rod body, when the first buckle hooks the first hook, the telescopic belt fixes the handle to the first rod body, a fixing ring is provided on the second rod body, the fixing ring comprises a first end and a second end, the first end is rotatably connected to the second rod body, a rotatable second buckle is provided on the second end, a support plate is provided on the second rod body, a second hook is provided on the support plate, and the second buckle hooks the second hook to fix the cable to the second rod body.

[0005] Furthermore, in the utility model, the first rod body includes a telescopic groove, the second rod body is inserted into the telescopic groove, a guide groove is arranged on the side wall of the telescopic groove, and a guide block embedded in the guide groove is arranged on the second rod body.

[0006] Furthermore, in the utility model, a driving groove is arranged at one end of the second rod body inserted into the telescopic groove, and a driving rod inserted into the driving groove and threadedly matched with the driving groove is arranged in the telescopic groove.

[0007] Furthermore, in the utility model, a rotatable rotating rod is arranged inside the telescopic slot, a plug connector is arranged on the rotating rod, a plug slot is arranged on the driving rod, and the plug connector is inserted into the plug slot to connect the rotating rod with the driving rod.

[0008] Furthermore, in the utility model, a first gear is arranged on the rotating rod, an opening is formed on the side wall of the first rod body, a second gear meshing with the first gear is arranged in the opening, and the second gear is connected to a rotating shaft.

[0009] Furthermore, in the utility model, a rotating disk covering the opening is provided at the opening, a rotating shaft extends outward from the opening and is connected to the rotating disk, a limiting ring is provided on the rotating disk, an annular limiting groove is provided at the end of the opening, and the limiting ring is embedded in the limiting groove.

[0010] The beneficial effects of the utility model are as follows: the support rod fixes the detector by means of a telescopic belt and a fixing ring, and the position of the detection head can be adjusted by moving or rotating the support rod. Compared with adjustment by movement of a cable, there is no need to be restricted by a safety net, and adjustment is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the detector;

[0012] Figure 2 It is a structural diagram of the support rod;

[0013] Figure 3 It is a schematic diagram of the structure inside the support rod;

[0014] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0015] Figure 5 yes Figure 3 The enlarged view of point B in the middle;

[0016] Figure 6 is a schematic diagram of the structure of one end of the second rod body where the fixing ring is located;

[0017] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0018] Figure 8 is a schematic diagram of the structure of one end of the first rod body where the telescopic belt is located;

[0019] The figures are marked as follows: detector 100; handle 110; detection head 120; cable 130; support rod 200; telescopic slot 201; first rod body 210; guide slot 211; second rod body 220; driving slot 221; sliding block 222; driving rod 230; plug-in slot 231; rotating rod 240; plug-in connector 241; first gear 242; opening 250; second gear 251; rotating shaft 252; limiting slot 253; rotating disk 260; limiting ring 261; telescopic belt 300; first buckle 310; first hook 320; fixing ring 400; first end 401; second end 402; second buckle 410; support plate 420; second hook 421. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0021] See also Figures 1 to 8 A gas detection device for a limited space includes a detector 100 and a support rod. The detector 100 includes a detection head 120, a handle 110, and a cable 130 connecting the detection head 120 and the handle 110. The support rod 200 includes a first rod body 210 and a second rod body 220 that are slidably connected. The first rod body 210 is connected to the handle 110, and the second rod body 220 is connected to the detection head 120. The second rod body 220 can be extended relative to the first rod body 210. The first rod body 210 and the second rod body 220 support the cable 130 and the detection head 120. When the detection head 120 is extended into the wellhead, the position of the detection head 120 can be adjusted by the extension of the second rod body 220 and the tilt of the support rod 200 as a whole. There is no need to pull the cable 130 out of the mesh of the safety net and then pass it through another mesh to extend into the wellhead, thereby facilitating the adjustment of the position of the detection head 120.

[0022] A retractable belt 300 is connected to one side of the first rod 210, a first buckle 310 is provided at the end of the retractable belt 300, a first hook 320 is provided on the other side of the first rod 210, and when the first buckle 310 hooks the first hook 320, the retractable belt 300 fixes the handle 110 to the first rod 210. A fixing ring 400 is provided on the second rod 220, and the fixing ring 400 includes a first end 401 and a second end 402, the first end 401 is rotatably connected to the second rod 220, and a rotatable second buckle 410 is provided on the second end 402, a support plate 420 is provided on the second rod 220, and a second hook 421 is provided on the support plate 420, and the second buckle 410 hooks the second hook 421 to fix the cable 130 to the second rod 220.

[0023] The retractable band 300 is elastic. When in use, the handle 110 of the detector 100 is placed on the first rod 210, and the first buckle 310 on one side is pulled toward the first hook 320 on the other side, so that the first buckle 310 hooks the first hook 320. During this period, the retractable band 300 is stretched and the first rod 210 and the handle 110 are tied together, so that the handle 110 is fixed to the first rod 210. The cable 130 is laid along the first rod 210 and the second rod 220, and the connection between the detection head 120 and the cable 130 is located at the position where the fixing ring 400 is located. After the fixing ring 400 is closed, the connection between the detection head 120 and the cable 130 is clamped on the second rod 220, so that the detection head 120 and the second rod 220 are fixed.

[0024] The first rod body 210 includes a telescopic slot 201, the second rod body 220 is inserted into the telescopic slot 201, a guide slot 211 is provided on the side wall of the telescopic slot 201, and a guide block embedded in the guide slot 211 is provided on the second rod body 220. A driving slot 221 is provided at one end of the second rod body 220 inserted into the telescopic slot 201, and a driving rod 230 inserted into the driving slot 221 and threadedly engaged with the driving slot 221 is provided in the telescopic slot 201. A rotatable rotating rod 240 is provided in the telescopic slot 201, a plug connector 241 is provided on the rotating rod 240, and a plug connector 241 is provided on the driving rod 230. The plug connector 241 is inserted into the plug connector 231 to connect the rotating rod 240 with the driving rod 230. The rotating rod 240 is provided with a first gear 242, and the side wall of the first rod body 210 is provided with an opening 250. A second gear 251 meshing with the first gear 242 is provided in the opening 250, and the second gear 251 is connected to a rotating shaft 252. A rotating disk 260 covering the opening 250 is provided at the opening 250, and the rotating shaft 252 extends outward from the opening 250 and is connected to the rotating disk 260. A limiting ring 261 is provided on the rotating disk 260, and an annular limiting groove 253 is provided at the end of the opening 250, and the limiting ring 261 is embedded in the limiting groove 253.

[0025] The rotation of the rotating disk 260 can drive the rotation of the second gear 251, and the second gear 251 is engaged with the first gear 242 to drive the rotation of the rotating rod 240. The rotation of the rotating rod 240 drives the rotation of the driving rod 230. Since the driving rod 230 and the driving groove 221 are threadedly matched, the rotation of the driving rod 230 can drive the second rod body 220 to move in the telescopic groove 201, thereby adjusting the overall length of the support rod 200 to adjust the position of the detection head 120.

[0026] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A confined space gas detection device, characterized in that: The invention comprises a detector (100) and a support rod (200), wherein the detector (100) comprises a detection head (120), a handle (110) and a cable (130) connecting the detection head (120) and the handle (110), wherein the support rod (200) comprises a first rod body (210) and a second rod body (220) which are slidably connected, wherein the first rod body (210) is connected to the handle (110), and the second rod body (220) is connected to the detection head (120), a telescopic belt (300) is connected to one side of the first rod body (210), and a first buckle (310) is provided at the end of the telescopic belt (300), and a first hook (320) is provided on the other side of the first rod body (210), and the first buckle (310) is provided on the other side of the first rod body (210). When the ring (310) hooks the first hook (320), the retractable belt (300) fixes the handle (110) to the first rod body (210); a fixing ring (400) is provided on the second rod body (220); the fixing ring (400) comprises a first end (401) and a second end (402); the first end (401) is rotatably connected to the second rod body (220); a rotatable second buckle (410) is provided on the second end (402); a support plate (420) is provided on the second rod body (220); a second hook (421) is provided on the support plate (420); the second buckle (410) hooks the second hook (421) to fix the cable (130) to the second rod body (220).

2. A confined space gas detection device according to claim 1, characterized in that: The first rod body (210) comprises a telescopic slot (201), the second rod body (220) is inserted into the telescopic slot (201), a guide slot (211) is provided on a side wall of the telescopic slot (201), and the second rod body (220) is provided with a guide block embedded in the guide slot (211).

3. A confined space gas detection device according to claim 2, characterized in that: One end of the second rod body (220) inserted into the telescopic slot (201) is provided with a driving slot (221), and the telescopic slot (201) is provided with a driving rod (230) inserted into the driving slot (221) and threadedly matched with the driving slot (221).

4. A confined space gas detection device according to claim 3, characterized in that: A rotatable rotating rod (240) is arranged inside the telescopic slot (201), a plug connector (241) is arranged on the rotating rod (240), and a plug slot (231) is arranged on the driving rod (230), and the plug connector (241) is inserted into the plug slot (231) to connect the rotating rod (240) with the driving rod (230).

5. A confined space gas detection device according to claim 4, characterized in that: The rotating rod (240) is provided with a first gear (242); the side wall of the first rod body (210) is provided with an opening (250); a second gear (251) meshing with the first gear (242) is provided in the opening (250); the second gear (251) is connected to a rotating shaft (252).

6. A confined space gas detection device according to claim 5, characterized in that: A rotating disk (260) covering the opening (250) is arranged at the opening (250); the rotating shaft (252) extends outward from the opening (250) and is connected to the rotating disk (260); a limiting ring (261) is arranged on the rotating disk (260); an annular limiting groove (253) is arranged at the end of the opening (250); and the limiting ring (261) is embedded in the limiting groove (253).

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