CN219064979U

CN219064979U - Fire investigation sampling device

Info

Publication number: CN219064979U
Application number: CN202222447384.4U
Authority: CN
Inventors: 张淼
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-05-23
Anticipated expiration: 2032-09-14

Abstract

The utility model relates to the technical field of fire investigation sampling, in particular to a fire investigation sampling device which comprises a sampling bucket, wherein two grooves are formed in the sampling bucket, springs are fixedly arranged on one sides of the two grooves, two rotating rods are inserted into the sampling bucket, one ends of the two rotating rods are connected with the middle part of one side of a limiting block, limiting pins are fixedly arranged at two ends of one side of the two limiting blocks, the improved fire investigation sampling device compresses the springs through the matching of the rotating rods and the limiting blocks, then the rotating rods rotate by 90 degrees, the limiting pins and clamping grooves are in a clamping structure, a sieve plate is fixed in the sampling bucket, samples and ashes in ashes are screened, air in the sampling bucket is pumped out through an external air pump, and then the edges of the rubber sealing plates are bonded with the edges of the air pump through the matching of a control rod and the rubber sealing plate, so that the inside of the sampling bucket is sealed with the outside.

Description

Fire investigation sampling device

Technical Field

The utility model relates to the technical field of fire investigation sampling, in particular to a fire investigation sampling device.

Background

Fire is a disaster caused by burning which is out of control in time or space, and in a new standard, fire is defined as burning which is out of control in time or space, among various disasters, fire is one of the main disasters which most often and most commonly threatens public safety and social development, and a certain material evidence needs to be extracted at a fire scene in order to effectively identify the root cause of the fire.

The prior patent (publication No. CN 214309675U) discloses a fire investigation sampling device. At present, investigation personnel need clear away the plant ash that the top layer covered and just can be used for collecting evidence when taking a sample, can make the plant ash fly upward when the clearance, shelter from staff's sight, and the sampling process is wasted time and energy. A fire survey sampling device, comprising: the collecting box body and the filter are internally provided with the filter, a group of filter holes with the same diameter are formed in the filter, the inner wall of the collecting box is connected with a group of magnets, the magnets are fixedly connected with one side of the filter in an mutually adsorbing mode, the other side of the filter is symmetrically connected with a pulling plate with an L-shaped structure, the tail portion of the collecting box is connected with an ash discharge hopper with a conical structure, and the ash discharge hopper and the collecting box are of an integrated structure. The utility model is applied to a fire investigation sampling device. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. the existing sampling device cannot isolate the sample from the air in the device, so that the sample air is contacted for a long time to generate chemical reaction, and accurate data of the sample during investigation is affected; 2. when the existing equipment samples the fire scene, the sampling device can not screen the sample and the ashes in the sampling, so that the ashes fly upwards when the ashes are cleaned, and the influence is brought to the body of the staff.

Disclosure of Invention

The utility model aims to provide a fire investigation sampling device, which aims to solve the problems that in the prior art, the air in a sampling bucket is pumped out through an external exhaust fan, and external air cannot enter the interior of the sampling bucket by utilizing the cooperation of a control rod, a one-way valve and a rubber sealing plate; by rotating the rod and the spring. The cooperation of stopper for the inside at the sampling bucket is fixed to the sieve, and separately carry out unified collection to sample in the ashes and ashes, finally through the problem of ash discharge mouth discharge. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fire investigation sampling device, includes the sampling bucket, two recesses have been seted up to the inside of sampling bucket, two one side fixed mounting of recess has the spring, the inside grafting of sampling bucket has two rotary rods, two the one end of rotary rod is connected with one side middle part of stopper, two the opposite side both ends fixed mounting of stopper has the spacer pin, two the outside fixed mounting of rotary rod has the installation piece, two fixed mounting has the sieve between the installation piece, the ash discharge mouth has been seted up to the bottom of sampling bucket, the top fixed mounting of sampling bucket has the exhaust tube, the outside fixed mounting of exhaust tube has the check valve, the middle part of exhaust tube is through bearing movable mounting has the control lever, and the outside fixed mounting of control lever has the rubber sealing plate.

Further preferably, grooves are respectively formed on two sides of the inner wall of the exhaust tube.

Further preferably, a plurality of through grooves are formed in the bottom end of the screen plate.

Further preferably, rectangular long strip through grooves are respectively formed in two sides of the inner wall of the sampling bucket.

Further preferably, the rotary rod, the limiting block and the spring are symmetrical with respect to the horizontal center line of the sampling bucket.

Further preferably, the bottom end of the inner wall of the sampling bucket is provided with an inclined structure.

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

according to the utility model, the external air pump is connected with the air extraction pipe, so that air in the sampling bucket is extracted under the action of the air extraction pump, then the control rod is rotated to enable the edge of the rubber sealing plate to be attached to the edge of the air extraction pipe, and the interior and the exterior of the sampling bucket are sealed and isolated, so that the problem that chemical reaction is generated due to long-time contact of sample air is solved, and the data accuracy in fire investigation sampling is greatly improved.

According to the utility model, the rotating rod and the limiting block are inserted into the grooves through the limiting of the rectangular strip-shaped grooves, the rotating rod and the limiting block are utilized to extrude the springs, so that the springs are compressed and deformed, then the rotating rod is rotated by 90 degrees, so that the limiting pin and the clamping groove are in a clamping structure, the sieve plate is fixed in the sampling bucket under the clamping of the limiting pin and the clamping groove, the ash after fire investigation is sampled, the sample in the ash and the ash are separated, the scalding of workers by the residual temperature after the fire is avoided, and the damage to the bodies of the workers due to ash flying is avoided.

Drawings

FIG. 1 is a schematic diagram of the front internal structure of the present utility model;

FIG. 2 is a schematic top view of the internal structure of the present utility model;

fig. 3 is an enlarged view of the structure of fig. 2 at a point of the present utility model.

In the figure: 1. a sampling bucket; 2. a groove; 3. a spring; 4. a rotating rod; 5. a limiting block; 6. a limiting pin; 7. a mounting block; 8. a sieve plate; 9. an ash discharge port; 10. an exhaust pipe; 11. a one-way valve; 12. a control lever; 13. and a rubber sealing plate.

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. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a fire investigation sampling device, including sampling bucket 1, two recesses 2 have been seted up to the inside of sampling bucket 1, one side fixed mounting of two recesses 2 has spring 3, the inside grafting of sampling bucket 1 has two rotary rods 4, the one end of two rotary rods 4 is connected with the one side middle part of stopper 5, the opposite side both ends fixed mounting of two stopper 5 has spacer pin 6, the outside fixed mounting of two rotary rods 4 has installation piece 7, fixed mounting has sieve 8 between two installation pieces 7, ash discharge mouth 9 has been seted up to the bottom of sampling bucket 1, the top fixed mounting of sampling bucket 1 has exhaust tube 10, the outside fixed mounting of exhaust tube 10 has check valve 11, the middle part of exhaust tube 10 is through bearing movable mounting control rod 12, and the outside fixed mounting of control rod 12 has rubber seal plate 13.

In this embodiment, as shown in fig. 2, slots are respectively formed on two sides of the inner wall of the exhaust pipe 10, and the edges of the rubber sealing plate 13 are attached to the edges of the exhaust pipe 10 by using the cooperation of the control rod 12 and the rubber sealing plate 13, so that the inside and the outside of the sampling bucket 1 are sealed and isolated.

In this embodiment, as shown in fig. 1 and 2, a plurality of through grooves are formed at the bottom end of the screen plate 8; the ash and the sample after the fire disaster are separated under the screening of the screen plate 8, and the damage to staff caused by ash flying during sampling is solved.

In this embodiment, as shown in fig. 1 and fig. 2, rectangular long strip through grooves are respectively formed on two sides of the inner wall of the sampling bucket 1; so that the sieve plate 8 is guided to be attached to the inner wall of the sampling bucket 1 under the slotted limit.

In this embodiment, as shown in fig. 2, the rotating rod 4, the limiting block 5 and the spring 3 are symmetrical with respect to the horizontal center line of the sampling bucket 1; the spring 3 is compressed and deformed under the pressing of the rotating rod 4, then the rotating rod 4 is rotated, and the rotating rod 4 drives the sieve plate 8 to be fixed by utilizing the cooperation of the limiting pin 6 and the clamping groove.

In this embodiment, as shown in fig. 1, the bottom end of the inner wall of the sampling bucket 1 is provided with an inclined structure; the inclined sampling bucket 1 can avoid the direct contact of staff and ashes after fire, so that the ashes are easier to scoop into the sampling bucket 1, thereby preventing the scalding of the staff by the residual temperature after fire.

The application method and the advantages of the utility model are as follows: when the fire investigation sampling device is used, the working process is as follows:

as shown in fig. 1, 2 and 3, firstly, the cover plate of the sampling bucket 1 is opened, two rotary rods 4 are driven to drive two limiting blocks 5 to be inserted into the grooves 2 through the limiting of the rectangular strip-shaped grooves 2, the rotary rods 4 and the limiting blocks 5 are utilized to extrude the springs 3, the springs 3 are compressed and deformed, then the rotary rods 4 are rotated by 90 degrees, so that the limiting pins 6 and the clamping grooves are in a clamping structure, the screen plate 8 is fixed in the sampling bucket 1 under the clamping of the limiting pins 6 and the clamping grooves, then the sampling bucket 1 is used for investigating and sampling ashes after fire disaster in the horizontal direction, the residual temperature after fire disaster is avoided for detecting the flaw of workers, meanwhile, the investigating and sampling samples and the ashes are separated under the screening of the screen plate 8, the ashes are enabled to fall into the sampling bucket 1 through the screening of the screen plate 8, the samples are remained in the screen plate 8 under the screening of the screen plate 8, meanwhile, the problem that the body of staff is damaged due to ash flying is solved, after fire investigation and sampling are completed, the cover plate is tightly fixed with the sampling bucket 1 through threaded connection, then the cover plate is connected with the air suction pipe 10 through an external air suction pump, air in the sampling bucket 1 is pumped through the operation of the air suction pump, after the air in the sampling bucket 1 is pumped, the edge of the rubber sealing plate 13 is attached to the edge of the air suction pipe 10 through the rotary control rod 12, the inside of the sampling bucket 1 is sealed and isolated from the outside, the check valve 11 can effectively prevent external air from being guided into the inside of the sampling bucket 1, chemical reaction caused by long-time contact of sample air is solved, and therefore data accuracy in fire investigation and sampling is greatly improved, and finally dust can be discharged out of the inside of the sampling bucket 1 through the ash discharge port 9 in sampling is solved.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Fire investigation sampling device, including sample fill (1), its characterized in that: two recesses (2) have been seted up to the inside of sample fill (1), two one side fixed mounting of recess (2) has spring (3), the inside grafting of sample fill (1) has two rotary rods (4), two the one end of rotary rod (4) is connected with one side middle part of stopper (5), two opposite side both ends fixed mounting of stopper (5) has spacer pin (6), two the outside fixed mounting of rotary rod (4) has installation piece (7), two fixed mounting has sieve (8) between installation piece (7), ash discharge opening (9) have been seted up to the bottom of sample fill (1), the top fixed mounting of sample fill (1) has exhaust tube (10), the outside fixed mounting of exhaust tube (10) has check valve (11), the middle part of exhaust tube (10) is through bearing movable mounting control rod (12), and the outside fixed mounting of control rod (12) has rubber sealing plate (13).

2. A fire survey sampling apparatus according to claim 1, wherein: the two sides of the inner wall of the exhaust tube (10) are respectively provided with a slot.

3. A fire survey sampling apparatus according to claim 1, wherein: a plurality of through grooves are formed in the bottom end of the screen plate (8).

4. A fire survey sampling apparatus according to claim 1, wherein: rectangular long strip through grooves are respectively formed in two sides of the inner wall of the sampling bucket (1).

5. A fire survey sampling apparatus according to claim 1, wherein: the rotary rod (4), the limiting block (5) and the spring (3) are symmetrical with respect to the horizontal center line of the sampling bucket (1).

6. A fire survey sampling apparatus according to claim 1, wherein: the bottom end of the inner wall of the sampling bucket (1) is provided with an inclined structure body.