CN221007568U - Lifting type flammable gas detection device - Google Patents

Abstract

The utility model relates to the field of detection devices, in particular to a lifting type flammable gas detection device. Including fixing the mounting panel in factory building one side wall upper end, its characterized in that is rotationally connected with the pivot on the mounting panel, is fixed with branch and ring gear in the pivot, and the ring gear is concentric with the pivot, and branch is perpendicular with the wall at mounting panel place, is fixed with the upper plate on the mounting panel of ring gear top, is fixed with the hypoplastron on the mounting panel of ring gear below, and the last slip that is provided with of upper plate is provided with vertical rack, rack and ring gear meshing, and the rack lower extreme passes through spring coupling with the hypoplastron, and the rack lower extreme is fixed with the stay cord, and the one end that the mounting panel was kept away from to branch is fixed with combustible gas probe. When the gas probe is overhauled and checked, the height of the gas probe can be reduced, and workers can conveniently overhaul and check the gas probe.

Description

Lifting type flammable gas detection device

Technical Field

The utility model relates to the field of detection devices, in particular to a lifting type flammable gas detection device.

Background

For the indoor space related to the combustible gas such as a natural gas compressor factory building, a combustible gas detection instrument needs to be installed at the top in the factory building, which is required by the gas detection instrument installation standard SH3063-1999 (the combustible gas release source lighter than air is in a closed or semi-closed factory building, and a detector is arranged above the release source) in the 4.1.5 th section of the petrochemical enterprise combustible gas detection alarm design specification, and the production safety of the factory building is also ensured.

At present, the combustible gas detector installed at the top in part of the factory building is mostly fixed, and when the factory building is built, the combustible gas detector is directly installed at the top of the factory building structure, and the later-stage effect and maintenance work on the combustible gas detector are very inconvenient because the top of the factory building is higher. The existing mode is to operate by adopting a climbing vehicle, and due to reasons such as layout of process pipelines and channel limitation of a factory building site, the climbing vehicles at a plurality of places cannot enter, and only a scaffold can be adopted for climbing to check and overhaul, so that the scaffold needs to be built, so that the time consumption for checking and overhaul is long, and the risk is high.

The patent document with the application number of CN202320368425.2, entitled "a combustible gas detection alarm calibrating device", discloses a device capable of enabling a combustible gas detector to vertically lift, when the device is used, the combustible gas detector and a first gas collecting cover are respectively fixed, then a vertical pipe is moved through a universal wheel, then a hand wheel is rotated, a gear coaxially connected with the hand wheel is driven to rotate by the hand wheel, and a lifting rod is driven to adjust in the vertical direction through meshing teeth on the side part, so that the heights of a second gas collecting cover, the first gas collecting cover and the combustible gas detector arranged at the top end of the lifting rod can be adjusted. But in the process of improving the heights of the gas collecting hood II, the gas collecting hood I and the combustible gas detector, the overall stability of the device is lower, and the risk of toppling exists.

Disclosure of utility model

The utility model aims to solve the technical problem of a lifting type combustible gas detection device which is convenient for overhauling a combustible gas probe in the later period.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

The utility model provides a over-and-under type combustible gas detection device, including fixing the mounting panel in factory building one side wall upper end, it is connected with the pivot to rotate on the mounting panel, be fixed with branch and ring gear in the pivot, the ring gear is concentric with the pivot, branch is perpendicular with the wall at mounting panel place, be fixed with the upper plate on the mounting panel of ring gear top, be fixed with the hypoplastron on the mounting panel of ring gear below, slide on the upper plate and be provided with vertical rack, rack and ring gear meshing, rack lower extreme passes through spring coupling with the hypoplastron, the rack lower extreme is fixed with the stay cord, the one end that the mounting panel was kept away from to the branch is fixed with combustible gas probe.

The lower end of the supporting rod is fixedly provided with a plurality of hanging rings, an electric wire penetrates through the hanging rings, one end of the electric wire is electrically connected with the combustible gas probe, the other end of the electric wire is electrically connected with an explosion-proof junction box arranged in a factory building, and the supporting rod can be driven by the toothed ring and the rotating shaft to drive the combustible gas probe to swing downwards in the descending process of the rack.

Specifically, branch includes the sleeve pipe, and the intraductal slip grafting of sleeve pipe has interior pole, and the intraductal interior pole one end of sleeve pipe passes through the extension spring with the sleeve pipe to be connected, rings are fixed on the sleeve pipe.

Specifically, the pull ring is fixed with at the stay cord lower extreme, and explosion-proof junction box outside is fixed with the peg, and the pull ring allows to hang on the peg.

Compared with the prior art, the utility model has the beneficial effects that:

1. When the gas probe is overhauled and checked, the height of the gas probe can be reduced, so that workers can conveniently overhaul and check the gas probe, and the gas probe can be restored to the original position after the overhauling and checking are finished, so that the overhauling and checking of the gas probe are more convenient.

2. The branch sets up to telescopic structure, and the combustible gas probe of pulling after the branch is rotatory, and the whole length of branch increases, and the height of combustible gas probe can further reduce, and the rotatory in-process length of branch is unchangeable, and the rotatory in-process of branch can not be blocked by equipment, and when the branch rotation is in place after again the combustible gas probe of pulling down is gone and is overhauld, check-up work. The device can avoid the blocking of the device in the factory building in the rotating process of the supporting rod.

3. A plurality of components and stay cords on the mounting panel are close to the wall of factory building, can avoid taking up the inside normal production space of factory building.

Drawings

FIG. 1 is a schematic diagram of the present utility model.

Fig. 2 is a cross-sectional view of a strut.

Fig. 3 is an enlarged view of area a in fig. 1.

The names of the parts in the drawings are as follows:

1. Factory building

2. Explosion-proof junction box

3. Electric wire

4. Pull rope

5. Hanging rod

6. Support rod

61. Casing pipe

62. Inner rod

63. Tension spring

7. Combustible gas probe

8. Lifting ring

9. Mounting plate

10. Upper plate

11. Rack bar

12. Lower plate

13. Rotating shaft

14. Toothed ring

15. And (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Embodiment one:

Referring to fig. 1 and 3, a lifting type combustible gas detection device comprises a mounting plate 9 fixed at the upper end of a side wall of a factory building 1. The mounting plate 9 is rotatably connected with a rotating shaft 13, and a supporting rod 6 and a toothed ring 14 are fixed on the rotating shaft 13. The toothed ring 14 is concentric with the rotation shaft 13. The strut 6 is perpendicular to the wall on which the mounting plate 9 is located.

An upper plate 10 is fixed on the mounting plate 9 above the toothed ring 14. A lower plate 12 is fixed to the mounting plate 9 below the toothed ring 14. The lower plate 12 and the support rod 6 are arranged in a staggered manner in the axial direction of the rotating shaft 13.

The upper plate 10 is slidably provided with a vertical rack 11, and the rack 11 is engaged with a toothed ring 14. The lower end of the rack 11 is connected with the lower plate 12 through a spring 15.

A pull rope 4 is fixed at the lower end of the rack 11. The pull cord 4 extends through the spring 15 and through the aperture in the lower plate 12.

The end of the support rod 6 far away from the mounting plate 9 is fixed with a combustible gas probe 7.

The lower extreme of branch 6 is fixed with a plurality of rings 8, and wire 3 runs through rings 8, and wire 3 one end and combustible gas probe 7 electric connection, wire 3 other end and install explosion-proof junction box 2 electric connection in factory building 1.

In the descending process of the rack 11, the support rod 6 can be driven by the toothed ring 14 and the rotating shaft 13 to drive the combustible gas probe 7 to swing downwards.

The pull ring is fixed at the lower end of the pull rope 4, the hanging rod 5 is fixed at the outer side of the explosion-proof junction box 2, and the pull ring is allowed to be hung on the hanging rod 5.

When the combustible gas probe 7 needs to be overhauled and checked, the rack 11 is pulled by the pull rope 4, so that the rack 11 moves downwards, and in the process of the downward movement of the rack 11, the rack 11 drives the supporting rod 6 to drive the combustible gas probe 7 to swing downwards through the toothed ring 14 and the rotating shaft 13, so that the height of the combustible gas probe 7 is reduced. At the same time, the spring 15 is compressed. The pull ring can be hung on the hanging rod 5 of the explosion-proof junction box 2, so that the supporting rod 6 is stabilized. When the height of the combustible gas probe 7 is reduced, the combustible gas probe 7 is convenient to overhaul and check.

Embodiment two:

Other features of this embodiment are the same as those of the first embodiment, except that:

Referring to fig. 2, the supporting rod 6 includes a sleeve 61, an inner rod 62 is slidably inserted into the sleeve 61, one end of the inner rod 62 in the sleeve 61 is connected with the sleeve 61 through a tension spring 63, and the hanging ring 8 is fixed on the sleeve 61.

The support rod 6 is arranged into a telescopic structure, the combustible gas probe 7 is pulled after the support rod 6 rotates, the whole length of the support rod 6 is increased, and the height of the combustible gas probe 7 can be further reduced. The length of the supporting rod 6 is unchanged in the rotating process, and the supporting rod 6 cannot be blocked by equipment in the rotating process. When the strut 6 rotates in place and then pulls the combustible gas probe 7 to descend, the inner rod 62 is gradually pulled out from the sleeve 61 in the descending process of the combustible gas probe 7, and the tension spring 63 is stretched. The height of the combustible gas probe 7 is further reduced after descending, so that overhaul and verification work are convenient.

The wire 3 between the two adjacent hanging rings 8 is bent downwards. In the process of pulling the probe to continue to move downwards after the supporting rod 6 rotates, the electric wires 3 between the hanging rings 8 are gradually straightened, and the electric wires 3 can be prevented from obstructing the continuous descending of the combustible gas probe 7.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (6)

1. The utility model provides a lifting type combustible gas detection device, including fixing mounting panel (9) in factory building (1) one side wall upper end, a serial communication port, rotationally be connected with pivot (13) on mounting panel (9), be fixed with branch (6) and ring gear (14) on pivot (13), ring gear (14) are concentric with pivot (13), branch (6) are perpendicular with the wall that mounting panel (9) is located, be fixed with upper plate (10) on mounting panel (9) above ring gear (14), be fixed with hypoplastron (12) on mounting panel (9) below ring gear (14), slide on upper plate (10) and be provided with vertical rack (11), rack (11) and ring gear (14) meshing, rack (11) lower extreme and hypoplastron (12) are connected through spring (15), the one end that branch (6) kept away from mounting panel (9) is fixed with combustible gas probe (7), the lower extreme is fixed with a plurality of rings (8), wire (3) run through rings (8), wire (3) and combustible gas probe (7) are installed in electric connection with factory building (2), in the descending process of the rack (11), the supporting rod (6) can be driven by the toothed ring (14) and the rotating shaft (13) to drive the combustible gas probe (7) to swing downwards.

2. The lifting type combustible gas detection device according to claim 1, wherein the supporting rod (6) comprises a sleeve (61), an inner rod (62) is inserted in the sleeve (61) in a sliding mode, one end of the inner rod (62) in the sleeve (61) is connected with the sleeve (61) through a tension spring (63), and the lifting ring (8) is fixed on the sleeve (61).

3. The lifting type combustible gas detection device according to claim 1, wherein the lower plate (12) and the supporting rod (6) are arranged in a staggered manner in the axial direction of the rotating shaft (13).

4. The lifting type combustible gas detection device according to claim 1, wherein a pull ring is fixed at the lower end of the pull rope (4), a hanging rod (5) is fixed on the outer side of the explosion-proof junction box (2), and the pull ring is allowed to be hung on the hanging rod (5).

5. A lifting combustible gas detection device according to claim 2 wherein the wire (3) portion between adjacent lifting rings (8) is curved downwardly.

6. A lifting combustible gas detection device according to claim 1 characterised in that the pull cord (4) extends through holes in the spring (15) and the lower plate (12).