Underground dustproof protector

Abstract

The utility model discloses an underground dustproof protector, which relates to the technical field of underground operation and comprises a mask body provided with a plurality of bandages. The positioning sleeve is arranged on the mask body and penetrates through the mask body; the connecting sleeve is detachably arranged in the positioning sleeve; the plurality of second filter screens are respectively arranged on the inner wall of the connecting sleeve, and meshes of the plurality of second filter screens are gradually reduced from outside to inside; a discharging hole is formed in the position, corresponding to the position between every two adjacent second filter screens, of the side wall of the connecting sleeve; the sealing sleeve is detachably arranged at the position, corresponding to the discharging holes, of the outer wall of the connecting sleeve and used for blocking the discharging holes; the dustproof cover has the advantages of being convenient to use, good in dustproof effect, convenient to replace and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of downhole operation, in particular to a downhole dustproof protective tool. BACKGROUND

[0002] In the process of mining ore in the well, generally all through the blasting way carries out the mining, this mode can produce a large amount of dust, and the transfer of ore also needs to be transported by a shovel truck, which will also produce a large amount of dust, in order to avoid a large amount of dust being inhaled into the human body, the existing downhole operation will wear a dust mask or a mask;

[0003] Such as patent application number CN202322586423.3 discloses construction dust mask, the patent works, with the increase of use time, the filter plate filter hole in filter tip 2 accumulates more, at this moment only need to rotate the knob of one side of mounting plate 501, the knob drives rotating rod 502 to rotate, rotating rod 502 will drive two dredging brushes 503 to brush on the surface of filter plate, that is, the accumulated dust can be swept down, facilitating continuous use, while the bevel gear 504 at one end of dredging brush 503 also revolves around rotating rod 502, the bevel gear 504 will rotate under the meshing of bevel gear ring 505, further increasing the dredging efficiency;

[0004] The drawbacks of the cleaning method by the brush in the prior art are that the brush needs to be replaced regularly, and the main reason is that the brush will deform after being used for a period of time, reducing the cleaning effect of the filter plate, and the brush may also push the dust in the filter hole through the filter hole when the dust is inhaled into the human body. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide a downhole dustproof protective tool to solve the problems of high cost, complicated steps and poor effect of the downhole dust mask in the prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a downhole dustproof protective tool, comprising

[0007] The mask body has a plurality of straps.

[0008] The positioning sleeve is arranged on the mask body and penetrates the mask body.

[0009] The connecting sleeve is detachably arranged in the positioning sleeve.

[0010] A plurality of second filter screens are arranged on the inner wall of the connecting sleeve, and the mesh of the plurality of second filter screens gradually decreases from the outside to the inside.

[0011] The side wall of the connecting sleeve has a discharge hole corresponding to the position between two adjacent second filter screens.

[0012] The sealing sleeve is detachably arranged on the outer wall of the connecting sleeve corresponding to the position of the discharge holes, and is used for plugging the discharge holes.

[0013] Preferably, the inner wall of the positioning sleeve has a first filter screen at the end close to the human body.

[0014] Preferably, the opening end of the positioning sleeve has a first internal thread, the outer wall of the connecting sleeve has a first external thread, and the first internal thread is threadedly connected with the first external thread.

[0015] Preferably, the outer wall of the connecting sleeve has a hidden groove corresponding to the position of the sealing sleeve, the outer circumferential wall of the hidden groove has a second external thread, the inner circumferential wall of the sealing sleeve has a second internal thread, and the second internal thread is threadedly connected with the second external thread.

[0016] The beneficial effects of the above technical solutions are:

[0017] The first filter screen can realize terminal filtration, the connecting sleeve can be separated from the positioning sleeve, then the sealing sleeve is separated from the connecting sleeve, so that the dust between two adjacent second filter screens can be discharged through the discharge hole, and the worker can carry a connecting sleeve for direct replacement. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a side view of the underground dustproof protective equipment.

[0019] Figure 2 is a schematic view of the connecting sleeve.

[0020] Figure 3 is a schematic view of the connecting sleeve and the sealing sleeve.

[0021] Figure 4 is a sectional view of the positioning sleeve and the connecting sleeve.

[0022] The mask body 10, the binding belt 20, the positioning sleeve 30, the first filter screen 31, the connecting sleeve 40, the first external thread 41, the first internal thread 42, the sealing sleeve 50, the hidden groove 51, the second internal thread 52, the second external thread 53, the discharge hole 54, and the second filter screen 60. DETAILED DESCRIPTION

[0023] The embodiment of the present application will be described in detail below with reference to the drawings.

[0024] As Figures 1-4 In the first embodiment, the underground dustproof protective equipment comprises

[0025] The mask body 10 has a plurality of straps 20;

[0026] The positioning sleeve 30 is arranged on the mask body 10 and penetrates the mask body 10;

[0027] The connecting sleeve 40 is detachably arranged in the positioning sleeve 30;

[0028] A plurality of second filter screens 60 are arranged on the inner wall of the connecting sleeve 40, and the mesh of the plurality of second filter screens 60 gradually decreases from outside to inside;

[0029] The side wall of the connecting sleeve 40 has a discharge hole 54 corresponding to the position between adjacent two second filter screens 60;

[0030] The sealing sleeve 50 is detachably arranged on the outer wall of the connecting sleeve 40 corresponding to the position of the plurality of discharge holes 54, and is used for plugging the discharge hole 54.

[0031] The embodiment is implemented as follows:

[0032] In use, the second filter screen 60 can filter dust, and the mesh of the second filter screen 60 in the application decreases from outside to inside, so that the effect of filtering can be improved. When it is necessary to replace and clean the impurities filtered, the connecting sleeve 40 is taken out of the positioning sleeve 30, and then a new connecting sleeve 40 is replaced. After the mine is exited, the sealing sleeve 50 is taken off, and then the dust between adjacent second filter screens 60 can be poured out from the discharge hole 54 by shaking the connecting sleeve 40.

[0033] Compared with the prior art, the application has the advantages that the filter screen can be conveniently replaced.

[0034] Please refer to Figure 4 , the inner wall of the positioning sleeve 30 has a first filter screen 31 near one end of the human body;

[0035] The first filter screen 31 can play a dustproof effect during replacement of the connecting sleeve 40.

[0036] Please refer to Figure 2 , 3 , 4, the inner wall of the opening end of the positioning sleeve 30 has a first inner thread 42, the outer wall of the connecting sleeve 40 has a first outer thread 41, and the first inner thread 42 is threadedly connected with the first outer thread 41;

[0037] The first outer thread 41 and the first inner thread 42 can facilitate dismounting and mounting of the connecting sleeve 40 and the positioning sleeve 30.

[0038] Please refer to Figure 2 , 3, 4, the outer wall of the connecting sleeve 40 has a hidden groove 51 corresponding to the position of the sealing sleeve 50, the outer circumferential wall of the hidden groove 51 has a second external thread 53, the inner circumferential wall of the sealing sleeve 50 has a second internal thread 52, and the second internal thread 52 is threadedly connected with the second external thread 53;

[0039] The sealing sleeve 50 will not protrude through the hidden groove 51, and the second internal thread 52 and the second external thread 53 can facilitate dismounting and mounting of the sealing sleeve 50 and the connecting sleeve 40.

[0040] The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A dust guard for use down a well, characterised in that, The utility model relates to a face mask body, which comprises a plurality of straps, a positioning sleeve arranged on the face mask body and penetrating through the face mask body, a connecting sleeve detachably arranged in the positioning sleeve, a plurality of second filter screens respectively arranged on the inner wall of the connecting sleeve, and the mesh of the plurality of second filter screens gradually decreases from outside to inside. The side wall of the connecting sleeve has a discharge hole corresponding to the position between adjacent two second filter screens. A sealing sleeve is detachably arranged on the outer wall of the connecting sleeve corresponding to the position of the plurality of discharge holes for plugging the discharge holes. The inner wall of the opening end of the positioning sleeve has a first filter screen. The inner wall of the opening end of the positioning sleeve has a first inner thread, the outer wall of the connecting sleeve has a first outer thread, and the first inner thread is threadedly connected with the first outer thread. The outer wall of the connecting sleeve has a hidden groove corresponding to the position of the sealing sleeve, the outer circumferential wall of the hidden groove has a second outer thread, the inner circumferential wall of the sealing sleeve has a second inner thread, and the second inner thread is threadedly connected with the second outer thread. ​ 2. A dust guard according to claim 1, wherein, ​ 3. A dust guard according to claim 1, wherein ​ 4. A dust guard according to claim 1, wherein ​

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