Fire-fighting transformation dust recovery mechanism

Abstract

The utility model discloses a fire protection transformation dust recovery mechanism which comprises a first air suction pipe fixedly communicated with a hose at the output end of a suction fan, a second air suction pipe is arranged in the first air suction pipe in a sliding mode, the end, away from the first air suction pipe, of the second air suction pipe is internally connected with a sealing plate in a threaded mode, and the inner wall of the first air suction pipe is fixedly connected with a positioning mechanism. The positioning mechanism can limit the second air suction pipe, the section of the dust suction opening is in a trumpet shape, an opening faces the outer end, the rubber block slides into the positioning groove, the rubber block is in a hemispherical shape, and the first air suction pipe is slidably connected with the second air suction pipe through the positioning mechanism. The second air suction pipe can slide to slide out of the first air suction pipe by different lengths according to needs to increase the dust suction area, the dust suction efficiency is improved, the second air suction pipe is connected with the first air suction pipe into a whole through the positioning mechanism, and the second air suction pipe is prevented from being lost while the second air suction pipe does not need to be carried by a worker.

Description

Technical field:

[0001] The utility model relates to the technical field of fire protection, in particular to a fire protection transformation dust recovery mechanism. Background technology:

[0002] During the fire protection construction process, a flame-retardant inflatable protective frame is required for protection. A double-layer transparent plastic film is used inside the protective frame to form a shielding layer to isolate noise. The fine water mist dust suppression device can manually adjust the spraying direction and flow rate by the internal operator to effectively reduce the dust concentration. The positive pressure air supply device and the negative pressure dust recovery mechanism ensure that the operator is in a relatively clean space, and the dust and smoke caused by cutting and welding can be filtered and recovered in an organized manner.

[0003] The existing dust recovery mechanism is mainly composed of a first suction pipe, a second suction pipe and a plurality of sealing plates. Dust suction ports are opened on the surfaces of the first suction pipe and the second suction pipe. One end of the first suction pipe is fixedly connected to the hose at the output end of the suction fan, and the other end of the first suction pipe is screwed with a sealing plate. When the dust suction range needs to be increased, the staff needs to unscrew the sealing plate on the first suction pipe and then screw the second suction pipe to the side end of the first suction pipe, and then screw the corresponding sealing plate to the second suction pipe. The first suction pipe and the second suction pipe are detachably connected, and the staff needs to carry the second suction pipe with them to meet the increase in the dust collection area at the welding or cutting location, which increases the weight of the staff and is likely to cause the loss of the second suction pipe. Utility model content:

[0004] To this end, the purpose of the utility model is to provide a fire-fighting modified dust recovery mechanism to overcome the existing technology because the existing dust recovery mechanism is mainly composed of a first suction pipe, a second suction pipe and a plurality of sealing plates, and dust suction ports are opened on the surfaces of the first suction pipe and the second suction pipe, one end of the first suction pipe is fixedly connected to the hose at the output end of the suction fan, and the other end of the first suction pipe is screwed with a sealing plate. When it is necessary to increase the dust suction range, the staff needs to unscrew the sealing plate on the first suction pipe and then screw the second suction pipe to the side end of the first suction pipe, and then screw the corresponding sealing plate to the second suction pipe. The first suction pipe and the second suction pipe are detachably connected, and the staff needs to carry the second suction pipe with them to meet the increase in the dust collection area at the welding or cutting location, which increases the weight of the staff and is likely to cause the loss of the second suction pipe.

[0005] The utility model is implemented by the following technical solutions:

[0006] A fire-fighting modified dust recovery mechanism comprises a first suction pipe fixedly connected to a hose at an output end of a suction fan, a second suction pipe is slidably arranged inside the first suction pipe, a sealing plate is connected to the inner thread of the second suction pipe away from the end of the first suction pipe, a sealing ring is fitted on the sliding sleeve of the second suction pipe, the sealing ring is fixedly embedded in the inner wall of the first suction pipe, dust suction ports are provided on the bottom surfaces of the first suction pipe and the second suction pipe, the dust suction ports on the bottom surfaces of the first suction pipe are communicated with the dust suction ports on the bottom surfaces of the second suction pipe, a positioning mechanism is fixedly connected to the inner wall of the first suction pipe, and the positioning mechanism can limit the second suction pipe.

[0007] Preferably, the cross-section of the dust suction port is trumpet-shaped and the opening is arranged toward the outer end.

[0008] Preferably, the cross-section of the cross bar of the sealing plate is hook-shaped.

[0009] Preferably, the inner diameter of the second air suction pipe gradually increases towards the direction approaching the first air suction pipe.

[0010] Preferably, the positioning mechanism includes a plurality of dovetail grooves symmetrically opened on the inner wall of the first suction pipe, a dovetail block is slidably provided in the dovetail groove, the dovetail block is fixedly connected to the outer wall of the second suction pipe, a plurality of positioning grooves are horizontally opened on the inner wall of the first suction pipe, a positioning groove rubber block is fixedly connected to the side wall of the dovetail block, and the rubber block slides into the positioning groove.

[0011] Preferably, the rubber block is hemispherical in shape.

[0012] Preferably, the positioning mechanism includes an annular groove opened on the inner wall of the first suction pipe, a circular ring is slidably provided in the annular groove, the circular ring is fixedly sleeved on the second suction pipe, a plurality of annular positioning grooves are horizontally opened on the inner wall of the first suction pipe, a rubber ring is fixedly sleeved on the outer wall of the circular ring, and the rubber ring can slide into the annular positioning groove.

[0013] The advantages of the utility model are as follows: the second suction pipe is slidably connected to the first suction pipe through a positioning mechanism. The second suction pipe can be slid as needed so that the second suction pipe can slide out of the first suction pipe at different lengths to increase the dust suction area and improve the dust suction efficiency. The second suction pipe is connected to the first suction pipe as a whole through the positioning mechanism, which eliminates the need for staff to carry it with them and prevents the second suction pipe from being lost. Description of the drawings:

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is the structural diagram of the utility model;

[0016] Figure 2 This is a structural schematic diagram of the positioning mechanism embodiment 1 of the utility model;

[0017] Figure 3 This is a structural schematic diagram of Embodiment 2 of the positioning mechanism of the utility model;

[0018] Figure 4 The structure of the utility model Figure 3 The main view;

[0019] Figure 5 For the utility model Figure 3 Stereoscopic diagram.

[0020] In the figure: a first air suction pipe 1, a sealing ring 2, a dust suction port 3, a sealing plate 4, a dovetail groove 5, a dovetail block 6, a positioning groove 7, a rubber block 8, an annular groove 9, a circular ring 10, a rubber ring 11, an annular positioning groove 12, and a second air suction pipe 13. Specific implementation method:

[0021] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0023] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] like Figure 1-Figure 5 As shown, the utility model provides the following technical solutions: a fire-fighting modified dust recovery mechanism, comprising a first suction pipe 1 fixedly connected to a hose at an output end of a suction fan, a second suction pipe 13 is slidably provided in the first suction pipe 1, and a sealing plate 4 is connected to the inner thread of the second suction pipe 13 away from the end of the first suction pipe 1, a sealing ring 2 is fitted and slidably sleeved on the second suction pipe 13, and the sealing ring 2 is fixedly embedded in the inner wall of the first suction pipe 1, and dust suction ports 3 are provided on the bottom surfaces of the first suction pipe 1 and the second suction pipe 13, and the dust suction ports 3 on the bottom surfaces of the first suction pipe 1 are communicated with the dust suction ports 3 on the bottom surfaces of the second suction pipe 13, and a positioning mechanism is fixedly connected to the inner wall of the first suction pipe 1, and the positioning mechanism can limit the second suction pipe 13.

[0026] The dust suction port 3 has a trumpet-shaped cross section and its opening is arranged toward the outer end, so as to expand the dust suction area of ​​the dust suction port 3 .

[0027] The cross-bar section of the sealing plate 4 is hook-shaped, so that the sealing plate 4 can drive the second suction pipe 13 to be hung up for dust collection operation.

[0028] The inner diameter of the second air suction pipe 13 gradually increases toward the first air suction pipe 1 , thereby accelerating the dust flow rate inside the second air suction pipe 13 .

[0029] Please combine Figure 1 As shown, during the use process, when fire protection modification is required, the flame retardant inflatable protection frame is first assembled and spliced, and then the cutting or welding at the modification site is carried out. At this time, the suction fan starts to work, and the external dust enters the dust suction port 3 in the first suction pipe 1 through the dust suction port 3 on the second suction pipe 13, and then enters the first suction pipe 1 along the dust suction port 3 on the first suction pipe 1, and then enters the dust collection box of the suction fan through the hose at the output end of the suction fan. When it is necessary to increase the dust collecting area at the cutting or welding site, the staff pulls the sealing plate 4, and the sealing plate 4 drives the second suction pipe 13 to move, and the second suction pipe 13 drives the dust suction port 3 on the second suction pipe 13 to slide out of the first suction pipe 1, and multiple dust suction ports 3 on the second suction pipe 13 are exposed on the outside of the first suction pipe 1. When the dust collecting area at the cutting or welding site is increased, the sealing ring 2 ensures the sealing of the connection between the first suction pipe 1 and the second suction pipe 13.

[0030] Please combine Figure 2 As shown, embodiment 1 of the positioning mechanism comprises a plurality of dovetail grooves 5 symmetrically opened on the inner wall of the first suction pipe 1, a dovetail block 6 is slidably provided in the dovetail groove 5, the dovetail block 6 is fixedly connected to the outer wall of the second suction pipe 13, a plurality of positioning grooves 7 are horizontally opened on the inner wall of the first suction pipe 1, a rubber block 8 is fixedly connected to the side wall of the dovetail block 6 with the positioning groove 7, and the rubber block 8 slides into the positioning groove 7.

[0031] The rubber block 8 is hemispherical in shape, which facilitates the rubber block 8 to slide into the positioning groove 7 .

[0032] Please combine Figure 2 As shown, during use, when the second suction pipe 13 slides, the second suction pipe 13 drives the dovetail block 6 to slide in the dovetail groove 5, and the dovetail block 6 drives the rubber block 8 to slide out of one positioning groove 7 and slide into the other positioning groove 7. The first suction pipe 1 squeezes the rubber block 8 to cause deformation. When the rubber block 8 slides into the positioning groove 7, the dust suction port 3 on the surface of the first suction pipe 1 can be connected with the dust suction port 3 on the surface of the second suction pipe 13.

[0033] Please combine Figure 3 , Figure 4 , Figure 5 As shown, embodiment 2 of the positioning mechanism comprises an annular groove 9 provided on the inner wall of the first suction pipe 1, a circular ring 10 is slidably provided in the annular groove 9, the circular ring 10 is fixedly sleeved on the second suction pipe 13, a plurality of annular positioning grooves 12 are horizontally provided on the inner wall of the first suction pipe 1, a rubber ring 11 is fixedly sleeved on the outer wall of the circular ring 10, and the rubber ring 11 can slide into the annular positioning groove 12.

[0034] Please combine Figure 3 As shown, during use, when the second suction pipe 13 slides, the second suction pipe 13 drives the ring 10 to slide in the annular groove 9, and the ring 10 drives the rubber ring 11 to slide out of one annular positioning groove 12 and slide into the other annular positioning groove 12. The first suction pipe 1 squeezes the rubber ring 11 to cause deformation. When the rubber ring 11 slides into the annular positioning groove 12, the dust suction port 3 on the surface of the first suction pipe 1 can be connected with the dust suction port 3 on the surface of the second suction pipe 13.

[0035] When it is necessary to change the dust collection direction of the dust suction port 3 on the surface of the second suction pipe 13, the staff can rotate the sealing plate 4, the sealing plate 4 drives the second suction pipe 13 to rotate, the second suction pipe 13 drives the dust suction port 3 on its surface to rotate, the second suction pipe 13 drives the ring 10 to rotate in the annular groove 9, the ring 10 drives the rubber ring 11 to rotate in the annular positioning groove 12, thereby changing the dust collection direction of the dust suction port 3 on the surface of the second suction pipe 13.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire-fighting modified dust recovery mechanism, comprising a first suction pipe fixedly connected to a hose at an output end of a suction fan, characterized in that: A second suction pipe is slidably arranged inside the first suction pipe, a sealing plate is connected to the inner thread of the second suction pipe away from the end of the first suction pipe, a sealing ring is fitted on the sliding sleeve of the second suction pipe, the sealing ring is fixedly embedded in the inner wall of the first suction pipe, dust suction ports are provided on the bottom surfaces of the first suction pipe and the second suction pipe, the dust suction ports on the bottom surfaces of the first suction pipe are communicated with the dust suction ports on the bottom surfaces of the second suction pipe, a positioning mechanism is fixedly connected to the inner wall of the first suction pipe, and the positioning mechanism can limit the second suction pipe.

2. A fire-fighting modification dust recovery mechanism according to claim 1, characterized in that: The cross-section of the dust suction port is trumpet-shaped and the opening is arranged toward the outer end.

3. A fire-fighting modification dust recovery mechanism according to claim 2, characterized in that: The cross bar of the sealing plate has a hook-shaped cross section.

4. A fire-fighting modification dust recovery mechanism according to claim 3, characterized in that: The inner diameter of the second air suction pipe gradually increases toward the direction approaching the first air suction pipe.

5. A fire-fighting modification dust recovery mechanism according to any one of claims 1 to 4, characterized in that: The positioning mechanism includes a plurality of dovetail grooves symmetrically opened on the inner wall of the first suction pipe, a dovetail block is slidably provided in the dovetail groove, the dovetail block is fixedly connected to the outer wall of the second suction pipe, a plurality of positioning grooves are horizontally opened on the inner wall of the first suction pipe, a positioning groove rubber block is fixedly connected to the side wall of the dovetail block, and the rubber block slides into the positioning groove.

6. A fire-fighting modification dust recovery mechanism according to claim 5, characterized in that: The rubber block is in a hemispherical shape.

7. A fire-fighting modification dust recovery mechanism according to claim 2 or 3, characterized in that: The positioning mechanism includes an annular groove opened on the inner wall of the first suction pipe, a circular ring is slidably provided in the annular groove, the circular ring is fixedly sleeved on the second suction pipe, a plurality of annular positioning grooves are horizontally opened on the inner wall of the first suction pipe, a rubber ring is fixedly sleeved on the outer wall of the circular ring, and the rubber ring can slide into the annular positioning groove.

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