CN210186265U

CN210186265U - Screw rod top-open type filtering tank structure of fire-fighting self-rescue respirator

Info

Publication number: CN210186265U
Application number: CN201920598584.5U
Authority: CN
Inventors: Youfei Jiang; 姜有飞
Original assignee: Zhejiang Daili New Material Technology Co Ltd
Current assignee: Zhejiang Daili New Material Technology Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-03-27
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to a screw rod open-top fire control self-rescue respirator crosses filter tank structure, including depositing the container that the filter medium used, the container is equipped with the inlet port, the inlet port is equipped with the apron sealed living with the inlet port, the apron with the integrative structural connection of container is in the same place, the outside of container be equipped with the aligned connecting pipe of inlet port, be equipped with the internal thread on the inner peripheral surface of connecting pipe, pass through in the connecting pipe internal thread threaded connection has and is used for pushing away the screw rod that the apron was used. The utility model provides a screw rod top open type fire control self-rescue respirator filter tank structure that labour saving and difficult to be opened by the mistake when opening the apron has solved the apron on the inlet port of current canister and has opened hard and easily by the mistake collision and the problem of opening.

Description

Screw rod top-open type filtering tank structure of fire-fighting self-rescue respirator

Technical Field

The utility model relates to a filtration formula fire control respirator of saving oneself especially relates to a screw rod top open type fire control respirator of saving oneself filters a jar structure.

Background

A fire-fighting self-rescue respirator is an appliance which is worn during fire-fighting operation and prevents smoke poisoning. The respirator filters the inhaled air through a canister. The basic structure of the canister comprises a container for filtering substances, wherein one end of the container is provided with an air inlet, the other end of the container is provided with an air outlet, and the filtering substances (such as activated carbon) are arranged in the container. Before not using, the inlet port is covered through the rubber lid, pulls out the rubber buffer when needing to use and wears after, and the air is filtered by the filth after the inlet port inflow, then flows from the venthole. The canister has the defect that the rubber plug is easy to disengage, and the canister with the air inlet hole sealed by the cover plate integrally connected to the air inlet hole is designed, so that the canister has the following defects: not only is the opening laborious, but also the phenomenon that the cover plate is collided by mistake and is opened abnormally can be generated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a screw rod top open type fire control self-rescue respirator filter tank structure that labour saving and difficult to be opened by the mistake when opening the apron has solved the apron on the inlet port of current canister and has opened hard and easily by the mistake collision and the problem of opening.

The technical problem is solved by the following technical scheme: the utility model provides a screw rod open-top fire control self-rescuer filters jar structure, its characterized in that, is including depositing the container that filter article used, the container is equipped with the inlet port, the inlet port is equipped with the apron sealed up with the inlet port, the apron with container body structure links together, the outside of container be equipped with the connecting pipe that the inlet port is aligned, be equipped with the internal thread on the inner peripheral surface of connecting pipe, pass through in the connecting pipe internal thread threaded connection has and is used for the back-open the screw rod that the apron was used. When the vent hole needs to be opened, the screw rod is rotated to increase the depth of the screw rod inserted into the air inlet hole, so that the cover plate is extruded to be broken. The cover plate is opened by rotating the screw rod to extrude, and labor is saved during opening. Because the screw rod is in threaded connection, the cover plate can not be extruded to fall off due to inward movement when collision is received, so that the cover plate can be prevented from being mistakenly collided and opened

Preferably, the cover plate is provided with a disconnection guide portion for guiding the cover plate to be disconnected from the container. The force required for breaking the cover plate by extrusion to make the cover plate fall off can be reduced. Thereby the cover plate is more labor-saving when being opened.

Preferably, the disconnection guide is an annular groove extending in a circumferential direction of the air intake hole. The preparation is convenient.

Preferably, the disconnection guide is located at a connection between the cover plate and the air intake hole. The effective air inlet area which is the open area of the air hole after the cover plate is separated is large.

Preferably, the screw is provided with an annular blade for cutting the breaking guide in alignment with the annular groove. When the screw presses the cover plate, the annular cutting edge cuts off the guide part, so that the cover plate is more labor-saving to fall off.

Preferably, the cover plate or the screw is provided with an extrusion bulge. When the cover plate is used, the cover plate is extruded through the contact of the extrusion protrusions, so that the friction force between the screw rod and the cover plate is reduced when the screw rod rotates, and labor is saved when the screw rod rotates.

Preferably, the thickness of the cover plate is gradually reduced from the center to the periphery to form the pressing projection at the center of the cover plate. Protruding this design can also make the apron that drops be difficult to the breakage for the piece to pour out and prevent that the piece from getting into in the container and influence the air current and pass through the container from the hole of entry.

Preferably, the thickness of the cover plate is gradually reduced from the center to the periphery to form a pressing protrusion at the center of the cover plate and the disconnection guide at the edge of the cover plate. The preparation is convenient.

Preferably, a distance between a portion of the screw rod that presses the pressing projection and the pressing projection is smaller than a distance between the annular blade and a portion of the breakage guide that is cut by the annular blade. Can make extrusion in-process extrusion protruding contact earlier and extrude the apron and produce towards the deformation in the container, then the annular cutting edge cuts disconnection guide portion to make more laborsaving the droing of apron.

Preferably, one end of the screw rod, which is far away from the cover plate, is provided with a jack. When the screw rod is used, the rod-shaped object can be inserted into the jack to rotate the screw rod, so that labor is saved when the screw rod is rotated.

The utility model has the advantages of that: the air inlet is not easy to open by mistake; the cover plate is labor-saving to open.

Drawings

Fig. 1 is a schematic view of a first embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1.

In the figure: the container comprises a container 1, an air inlet 2, a cover plate 3, an extrusion protrusion 4, a disconnection guide part 5, a connecting pipe 6, a screw 7, an annular blade 8, an insertion hole 9, a distance L1 between the extrusion protrusion part of the screw and the extrusion protrusion, and a distance L2 between the annular blade and the part of the disconnection guide part cut by the annular blade.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 and 2, a screw top-open type fire-fighting self-rescue respirator filter tank structure comprises a container 1 for storing filter materials. The container is provided with air inlet holes 2. The air inlet is provided with a cover plate 3 for sealing the air inlet. The cover plate is connected with the container in an integrated structure. The thickness of the cover plate becomes gradually thinner from the center to the periphery to form a pressing protrusion 4 at the center of the cover plate and a breaking guide 5 at the edge of the cover plate. The disconnection guide portion is an annular groove extending along the circumferential direction of the air inlet hole. The disconnection guide part is positioned at the connection part of the cover plate and the air inlet hole. The exterior of the container is provided with a connecting tube 6 aligned with the air inlet. The inner circumferential surface of the connecting pipe is provided with internal threads. And a screw rod 7 for jacking the cover plate is connected in the connecting pipe through the internal thread. The screw is provided with an annular blade 8 for cutting the break-off guide in alignment with the annular groove. The screw rod is equipped with jack 9 in the one end of keeping away from the apron. A distance L1 between the part of the screw rod extruding the extruding protrusion and the extruding protrusion is smaller than a distance L2 between the annular knife edge and the part of the breaking guide part cut by the annular knife edge.

When the device is used, the screw rod is directly pinched to rotate or penetrates into the insertion hole through the rod to rotate the screw rod so that the screw rod moves towards the cover plate, the screw rod firstly contacts the extrusion part to extrude the cover plate towards the container, the cover plate deforms inwards to further enable the annular cutting edge to be in contact with the disconnection guide part to cut the disconnection guide part, and finally the cover plate and the container are disconnected to fall off as a result. And taking down the screw after the cover plate falls off.

Claims

1. The utility model provides a screw rod open-top fire control self-rescuer filters jar structure, its characterized in that, is including depositing the container that filter article used, the container is equipped with the inlet port, the inlet port is equipped with the apron sealed up with the inlet port, the apron with container body structure links together, the outside of container be equipped with the connecting pipe that the inlet port is aligned, be equipped with the internal thread on the inner peripheral surface of connecting pipe, pass through in the connecting pipe internal thread threaded connection has and is used for the back-open the screw rod that the apron was used.

2. The screw top-opening fire self-rescue respirator canister structure of claim 1, wherein the cover plate is provided with a disconnection guide portion that guides the cover plate to be disconnected from the container.

3. The screw top-opening fire self-rescue respirator filter tank structure according to claim 2, wherein the break guide is an annular groove extending circumferentially along the air inlet.

4. The screw top-opening fire-fighting self-rescue respirator filter tank structure according to claim 3, wherein the disconnection guide part is located at the connection of the cover plate and the air inlet hole.

5. The screw top-opening fire self-rescue respirator filter tank structure according to claim 3 or 4, wherein the screw is provided with an annular blade aligned with the annular groove for cutting the disconnection guide.

6. The screw top-opening fire self-rescue respirator filter tank structure according to claim 5, wherein the thickness of the cover plate is gradually reduced from the center to the periphery to form a pressing protrusion at the center of the cover plate and the breaking guide at the edge of the cover plate.

7. The screw top-opening fire self-rescue respirator filter tank structure according to claim 6, wherein a distance between a portion of the screw that extrudes the extrusion protrusion and the extrusion protrusion is smaller than a distance between the annular blade and a portion of the disconnection guide that is cut by the annular blade.

8. The screw top-opening fire-fighting self-rescue respirator filter tank structure according to claim 1, 2, 3 or 4, wherein the cover plate or the screw is provided with an extrusion protrusion.

9. The screw top-opening fire self-rescue respirator filter tank structure as recited in claim 8, wherein the thickness of the cover plate is gradually reduced from the center to the periphery to form the extrusion protrusion at the center of the cover plate.

10. The screw top-opening fire-fighting self-rescue respirator filter tank structure according to claim 1, 2, 3 or 4, wherein one end of the screw, which is far away from the cover plate, is provided with a jack.