CN214284908U - Suck-back prevention blowpipe - Google Patents

Abstract

The utility model discloses a suck-back prevention blowpipe, including last body, lower body and thin slice, the venthole has been seted up to the top end of going up the body, and goes up the internal cavity setting of tubular body, the upper portion of body is provided with the connector down, and the lower part of body is provided with the base down to the antiskid cover has been put to the middle part body of body down, the interior pipe wall of body fits with a contraceptive ring down and is equipped with six internal ladder of group, and the middle part of six internal ladder of group is provided with and is provided with the second venthole, the upper end department of second venthole installs the thin slice, the lower extreme of going up the body is provided with the connector tube head, and the upper portion cover of connector tube head has put the seal cover to the seal cover chooses for use the rubber material, and the lower terminal surface of connector tube head has seted up first air vent. This suck-back prevention blowpipe, the structure sets up rationally, and convenient equipment and split use more nimble convenience to can only blow down, avoid up breathing in, make its alcohol detect more accurate reliable.

Description

Suck-back prevention blowpipe

Technical Field

The utility model relates to an alcohol detects relevant technical field, specifically is a prevent suck-back blowpipe.

Background

The alcohol detector mainly refers to an expired gas alcohol content detector, is a detection tool specially designed for police for law enforcement, and is used for carrying out specific treatment on the amount of alcohol drunk by a drinker on duty by a policeman, so that the occurrence of major traffic accidents is effectively reduced, and the alcohol detector can also be used for detecting the alcohol content in expired gas of a human body in other occasions, and the serious loss of casualties and property is avoided.

However, the existing alcohol detector is mostly an expiration type alcohol detector, a tested person blows to the alcohol detector through a blow pipe, the alcohol detector can extract quantitative gas for sampling analysis when the time and the total amount of gas are met, but the gas cannot be distinguished to be blown out from a human body or sucked up from the outside, the accuracy of alcohol detection is influenced, and the detection is unreliable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent suck-back blowpipe to solve the current alcohol detector that proposes in the above-mentioned background art and mostly be exhaling formula alcohol detector, the people under test blows to alcohol detector through the blowpipe, alcohol detector can extract quantitative gas and carry out the sampling analysis when satisfying time and gaseous total amount, nevertheless unable resolution gas is from the human body blowing out, still inhales from the outside, influences the accuracy that alcohol detected, detects the unreliable problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a suck-back prevention blowpipe, includes upper tube body, lower body and thin slice, the venthole has been seted up to the top end of upper tube body, and goes up the internal cavity setting of tube, the upper portion of lower body is provided with the connector, and the lower part of lower body is provided with the base to the antiskid cover has been put to the middle part body of lower body, the interior pipe wall of lower body is fitted with a contraceptive ring and is equipped with six internal ladder, and the middle part of six internal ladder is provided with the second venthole, the upper port department of second venthole installs the thin slice.

Preferably, the lower extreme of going up the body is provided with the connector tube head, and the seal cover has been put to the upper portion cover of connector tube head to the rubber material is chooseed for use to the seal cover, and the lower terminal surface of connector tube head has seted up first air vent.

Preferably, a connection port is formed in the upper end face of the connector, the lower end of the upper tube body is inserted into the connection port, and the sealing sleeve is blocked in a gap at the connection position of the connector head and the connection port.

Preferably, the lower pipe body is hollow, the base at the bottom of the lower pipe body is made of PVC, and the anti-skid sleeve sleeved outside the middle pipe body of the lower pipe body is made of fluorine rubber.

Preferably, the lower end of the upper pipe body is connected with the upper end of the lower pipe body in an embedded manner, the upper pipe body and the lower pipe body are detachable, and the sheet arranged between the upper pipe body and the lower pipe body is of a detachable structure.

Preferably, the upper pipe body is made of PP, the lower pipe body is made of PP, and the thin sheet is made of PE.

Compared with the prior art, the beneficial effects of the utility model are that: the anti-suck-back blowpipe is reasonable in structure arrangement, convenient to assemble and disassemble, more flexible and convenient to use, and can only blow downwards to avoid sucking upwards, so that the alcohol detection is more accurate and reliable;

1. the lower end of the upper pipe body is connected in the upper end of the lower pipe body in an embedded mode to form a whole alcohol detection suction and blowing pipe body structure, air is blown into the upper pipe body and the lower pipe body through air outlet holes in the upper end of the upper pipe body, the structure is simple and convenient to set, unified mass production is facilitated, and detection and use are simple and convenient;

2. the lower end of the upper pipe body is provided with a connector head which is embedded in a connecting port at the upper end of the lower pipe body, the sealing sleeve can just block an embedded gap, air leakage is avoided, detection is tighter and more reliable, meanwhile, the upper pipe body and the lower pipe body are convenient to assemble and disassemble, and the use is more flexible and convenient;

3. the pipe wall is fitted with a contraceptive ring and is equipped with six internal ladder groups in body down, places the thin slice at the middle part of six internal ladder groups, and when gas normally from top to bottom blew, gas got into through the gap between six internal ladder groups, and the diameter of first air vent is less than the diameter of thin slice simultaneously for when upwards breathing in, the thin slice can be adsorbed on first air vent, stops up first air vent completely, makes it can't breathe in and can only blow.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic top view of the lower pipe body according to the structure of the present invention.

In the figure: 1. an air outlet; 2. a pipe body is arranged; 3. a connector; 4. a lower pipe body; 5. a base; 6. an anti-slip sleeve; 7. sealing sleeves; 8. connecting the pipe heads; 9. a first vent hole; 10. a sheet; 11. a connection port; 12. an inner step; 13. a second vent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an anti-suck-back blow pipe comprises an air outlet hole 1, an upper pipe body 2, a connector 3, a lower pipe body 4, a base 5, an anti-skid sleeve 6, a sealing sleeve 7, a connector head 8, a first vent hole 9, a sheet 10, a connecting port 11, an inner ladder 12 and a second vent hole 13, wherein the upper end head of the upper pipe body 2 is provided with the air outlet hole 1, the upper pipe body 2 is arranged in a hollow manner, the upper part of the lower pipe body 4 is provided with the connector 3, the upper end surface of the connector 3 is provided with the connecting port 11, the lower end of the upper pipe body 2 is inserted into the connecting port 11, the sealing sleeve 7 is blocked in a gap at the joint of the connector head 8 and the connecting port 11, the lower part of the lower pipe body 4 is provided with the base 5, the anti-skid sleeve 6 is sleeved on the middle pipe body of the lower pipe body 4, the upper ring wall of the lower pipe body 4 is provided with six groups of inner ladders 12, and the middle parts of the six groups of the inner ladders 12 are provided with the second vent hole 13, thin slice 10 is installed to the last port department of second venthole 13, go up through embedded connection between the lower end of body 2 and the upper end of body 4 down, but and go up between body 2 and the body 4 down split, and the thin slice 10 of installation is detachable construction between body 2 and the body 4 down, the lower extreme of body 2 is provided with connector tube head 8, and connector tube head 8's upper portion cover has been put seal cover 7, and rubber material is chooseed for use to seal cover 7, and first venthole 9 has been seted up to connector tube head 8's lower terminal surface, cavity setting in the body 4 down, and the base 5 of body 4 bottom down adopts the PVC material, and the outer anti-skidding cover 6 of putting of body 4 middle part pipe down chooses for use the fluorine glue material, go up body 2 and adopt the PP material, and body 4 down adopts the PP material, and thin slice 10 adopts the PE material.

As shown in fig. 1, the overall structure of the device is mainly shown, and is mainly provided with an upper pipe body 2 and a lower pipe body 4, wherein the lower end of the upper pipe body 2 is embedded and connected in the upper end of the lower pipe body 4 to form a whole alcohol detection suction and blowing pipe body structure, and air is blown into the upper pipe body 2 and the lower pipe body 4 through an air outlet 1 on the upper end head of the upper pipe body 2, so that the structure is simple and convenient to set, uniform mass production is convenient, and detection and use are simple and convenient;

as shown in fig. 2, the lower end of the upper tube body 2 is provided with a connector 8, the connector 8 is embedded in the connection port 11 at the upper end of the lower tube body 4, the sealing sleeve 7 can just block the embedded gap, so as to avoid air leakage, the detection is tighter and more reliable, meanwhile, the upper tube body 2 and the lower tube body 4 are convenient to assemble and disassemble, and the use is more flexible and convenient;

as shown in fig. 2-3, six groups of inner steps 12 are annularly arranged on the inner wall of the lower tube 4, an upper sheet 10 is placed in the middle of the six groups of inner steps 12, when air is normally blown from top to bottom, the air enters through gaps between the six groups of inner steps 12, and the diameter of the first vent hole 9 is smaller than that of the sheet 10, so that when air is sucked upwards, the sheet 10 is adsorbed on the first vent hole 9, the first vent hole 9 is completely blocked, and the air cannot be sucked and can only be blown.

The working principle is as follows: when the anti-suck-back blow pipe is used, the sheet 10 is placed in the middle of six groups of inner steps 12 annularly arranged on the inner pipe wall of the lower pipe body 4, then the connector head 8 at the lower end of the upper pipe body 2 is aligned with the connecting port 11 at the upper end of the lower pipe body 4 and is embedded to enter, meanwhile, the sealing sleeve 7 arranged at the upper part of the connector head 8 blocks the gap between the upper pipe body 2 and the lower pipe body 4 to avoid the internal gas from leaking out and the external gas from flowing in, during the detection, a detected person holds the middle part of the lower pipe body 4 by one hand, the anti-skid sleeve 6 has the anti-skid function to avoid the pipe body from sliding off due to sweat on the hand, the air is blown into the upper pipe body 2 and the lower pipe body 4 through the air outlet hole 1 on the upper end of the upper pipe body 2, the air enters into the lower pipe body 4 through the gap between the peripheries of the inner steps 12, and because the diameter of the first air vent 9 of the connector head 8 at the lower end of the upper pipe body 2 is smaller than the diameter of the sheet 10, can effectually avoid the gas to be inhaled, slice 10 can be adsorbed in first air vent 9 department, leads to unable breathing in, can only blow, helps the alcohol to detect accurately, detects more truly reliably.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. An anti-suck-back blowpipe, includes body (2) down, body (4) and thin slice (10), its characterized in that: the air outlet hole (1) is formed in the upper end head of the upper pipe body (2), the upper pipe body (2) is arranged in a hollow mode, the upper portion of the lower pipe body (4) is provided with the connector (3), the lower portion of the lower pipe body (4) is provided with the base (5), the anti-skidding sleeve (6) is sleeved on the middle pipe body of the lower pipe body (4), six groups of inner steps (12) are annularly arranged on the inner wall of the lower pipe body (4), the middle portions of the six groups of inner steps (12) are provided with the second air vent holes (13), and the thin sheet (10) is installed at the upper end opening of the second air vent holes (13).

2. A blow down prevention tube as set forth in claim 1 wherein: go up the lower extreme of body (2) and be provided with connection tube head (8), and the upper portion cover of connecting tube head (8) has put seal cover (7) to seal cover (7) select for use the rubber material, and first air vent (9) have been seted up to the lower terminal surface of connection tube head (8).

3. A blow down prevention tube as set forth in claim 1 wherein: connection port (11) have been seted up to the up end of connector (3), and go up the lower extreme of tube body (2) and insert and set up in connection port (11) to seal cover (7) block up on the gap of connector head (8) and connection port (11) junction.

4. A blow down prevention tube as set forth in claim 1 wherein: the lower pipe body (4) is internally hollow, the base (5) at the bottom of the lower pipe body (4) is made of PVC (polyvinyl chloride) material, and the anti-skid sleeve (6) sleeved outside the middle part of the lower pipe body (4) is made of fluorine rubber material.

5. A blow down prevention tube as set forth in claim 1 wherein: the lower end of the upper pipe body (2) is connected with the upper end of the lower pipe body (4) in an embedded mode, the upper pipe body (2) and the lower pipe body (4) can be separated, and the sheet (10) arranged between the upper pipe body (2) and the lower pipe body (4) is of a detachable structure.

6. A blow down prevention tube as set forth in claim 1 wherein: go up body (2) and adopt the PP material, and body (4) adopt the PP material down to thin slice (10) adopt the PE material.

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