CN210626024U

CN210626024U - Negative pressure detection device convenient to pipeline is fixed

Info

Publication number: CN210626024U
Application number: CN201922054053.2U
Authority: CN
Inventors: 黄镇川
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-05-26
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a negative pressure detection device convenient for pipeline fixation, which comprises a negative pressure testing machine and a mounting plate, wherein the surface of the mounting plate is provided with a second clamping structure, the inner wall of the second clamping structure is clamped with an air inlet pipe, the air inlet pipe is fixedly communicated with an air pump, the surface of the mounting plate is provided with a first clamping structure, the inner wall of the first clamping structure is clamped with a pipeline, one end of the pipeline is fixedly communicated with the air inlet pipe, the pipeline is fixedly provided with a clamping pressure, the other end of the pipeline is fixedly provided with a clamping plate, the inner wall of the clamping plate is provided with a plugging structure, the utility model provides a negative pressure detection device convenient for pipeline fixation, equipment is convenient for verifying the reliability of pipeline connection, checking whether the pressure load carried by the joint of a pipe fitting and a pipe reaches the normal use condition or not, and detecting whether the, and falling off.

Description

Negative pressure detection device convenient to pipeline is fixed

Technical Field

The utility model relates to a pipeline detection technology field, concrete field is a negative pressure detection device convenient to pipeline is fixed.

Background

In short, the negative pressure is a gas pressure state lower than the normal pressure (namely, one atmospheric pressure is often said), in a mine for extraction type ventilation, the absolute pressure of wind current is smaller than the absolute pressure at the same level outside the well or outside an air duct, the relative pressure is a negative value, called negative pressure, which is usually related to the concept in industry, especially the selection of a micro pump (such as a micro vacuum pump, a micro air pump, a micro gas sampling pump, a micro gas circulating pump, and a micro air pump), the utilization of the negative pressure is very common, people often make a certain space generate the negative pressure state, and can replace the efficacy of people by the ubiquitous atmospheric pressure, for example, when people breathe, the negative pressure occurs when the lung is in an expanded state, pressure difference between the inside and the outside of the lung is formed, fresh air is pressed into the lung, and the negative pressure detection device of the existing pipeline cannot well detect the reliability of pipeline connection, meanwhile, the detection effect of whether the pressure load borne by the joint of the pipe fitting and the pipe reaches the normal use condition is not good, the pipeline to be detected cannot be quickly fixed on the inspection equipment, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a negative pressure detection device convenient to pipeline is fixed to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a negative pressure detection device convenient to pipeline is fixed, includes negative pressure test machine and mounting panel, one side fixed mounting panel that is equipped with of negative pressure test machine, negative pressure test machine's inner wall fixed mounting has two air pumps, the surface mounting of mounting panel has second joint structure, the inner wall joint of second joint structure has the intake pipe, the fixed intercommunication of intake pipe and air pump, the surface mounting of mounting panel has first joint structure, the inner wall joint of first joint structure has the pipeline, the fixed intercommunication of one end and the intake pipe of pipeline, fixed being equipped with the card pressure between the pipeline, the fixed cardboard that is equipped with of the other end of pipeline, the inner wall of cardboard is equipped with block structure.

Preferably, the second joint structure includes the snap ring, snap ring and mounting panel fixed assembly, the ejector pin has been run through to one side of snap ring, the one end fixed assembly of ejector pin has the pull ring, the outer wall fixed assembly of ejector pin has the diaphragm, the outer wall of ejector pin has cup jointed first spring, the one end and the diaphragm fixed assembly of first spring, the other end of first spring and the inner wall fixed assembly of snap ring, the lateral wall of intake pipe is fixed to be equipped with the sleeve, the ejector pin is pegged graft in the sleeve, the fixed one end that is equipped with the second spring in inner chamber bottom surface of snap ring, the fixed kicking block that is equipped with of the other end of second spring, kicking block and intake pipe looks joint.

Preferably, first joint structure includes the stiff end, stiff end and mounting panel fixed assembly, the fixed one end that is equipped with articulated seat of one end of stiff end, the fixed buckle that is equipped with of the other end of articulated seat, the fixed fixture block that is equipped with of one end of buckle, the fixed surface of mounting panel is equipped with the draw-in groove, fixture block and draw-in groove looks joint, the inner wall of draw-in groove is pegged graft and is had the inserted bar, the inserted bar runs through draw-in groove and fixture block.

Preferably, the plugging structure comprises a screw rod, the screw rod penetrates through the clamping plate, a plugging block is fixedly assembled at one end of the screw rod, a nut is screwed at the other end of the screw rod, a piston is fixedly assembled at one end of the nut, and the piston is tightly attached to the inner wall of the pipeline.

Preferably, the lower end of the negative pressure testing machine is fixedly provided with a base.

Preferably, the inner wall of the pipeline is fixedly provided with a support block, and the support block is clamped with the piston.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a negative pressure detection device convenient to pipeline is fixed, through the assembly of first joint structure, conveniently with the pipeline joint on the mounting panel, simultaneously through the assembly use of second joint structure, can be with the intake pipe joint on the mounting panel, be in the same place air pump and pipe connection through the intake pipe, guarantee that equipment can be normal carry out inspection work, through block structure's use, guarantee that the pipeline keeps inclosed space.

The utility model provides a negative pressure detection device convenient to pipeline is fixed, the reliability of pipe connection is conveniently verified to equipment, and whether the pressure load that inspection pipe fitting and tubular product junction bore reaches normal service condition, does not have the seepage through detection pipe fitting and pipe connection, bad phenomena such as drop.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a piping structure;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

FIG. 4 is an enlarged view of the structure at B in FIG. 1;

fig. 5 is an enlarged view of the structure at C of fig. 1.

In the figure: 1-negative pressure testing machine, 2-base, 3-plugging structure, 31-plugging block, 32-screw rod, 33-nut, 34-piston, 4-first clamping structure, 41-fixed end, 42-hinged base, 43-buckle, 44-clamping block, 45-inserted bar, 46-clamping groove, 5-second clamping device, 51-pull ring, 52-first spring, 53-ejector bar, 54-sleeve, 55-top block, 56-second spring, 57-clamping ring, 6-mounting plate, 7-pipeline, 8-clamping pressure, 9-air inlet pipe, 10-air pump, 11-supporting block and 12-clamping plate.

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. 1-5, the present invention provides a technical solution: the utility model provides a negative pressure detection device convenient to pipeline is fixed, including negative pressure test machine 1 and mounting panel 6, one side of negative pressure test machine 1 is fixed to be equipped with mounting panel 6, the fixed two air pumps 10 that are equipped with of inner wall of negative pressure test machine 1, the surface assembly of mounting panel 6 has second joint structure 5, the inner wall joint of second joint structure 5 has intake pipe 9, intake pipe 9 and the fixed intercommunication of air pump 10, the surface assembly of mounting panel 6 has first joint structure 4, the inner wall joint of first joint structure 4 has pipeline 7, the one end of pipeline 7 and the fixed intercommunication of intake pipe 9, the fixed card that is equipped with between pipeline 7 presses 8, the other end of pipeline 7 is fixed to be equipped with cardboard 12, the inner wall of cardboard 12 is equipped with.

The assembly of the first clamping structure 4 is convenient for clamping a pipeline 7 on a mounting plate 6, meanwhile, the assembly and use of the second clamping structure 5 can clamp an air inlet pipe 9 on the mounting plate 6, the air inlet pipe 9 connects an air pump 10 with the pipeline 7 together to ensure that equipment can normally carry out inspection work, the use of the blocking structure 3 ensures that the pipeline 7 forms a closed space, when the equipment needs to work, the 3 pipelines 7 with different sizes and an equal-diameter thin-wall stainless steel clamping pressure 8 with the length of 200mm are used for connecting a group of test pieces, one end of the blocking structure 3 is connected with the air pump by the other end, the test pieces are clamped on the first clamping structure 4, the other end of the test pieces is connected with the air inlet pipe 9, the air inlet pipe 9 is clamped on the second clamping structure 5, the other end of the test pieces is connected with the air pump 10, the air pump is a vacuum pump, the indoor temperature is 20 +/-, the test pressure was-80 KPa, and the difference in the internal pressures of the pipe and the pipe was not more than 5KPa, while no other abnormality was observed, when the pressure was maintained at the test pressure for 1 hour.

Specifically, second joint structure 5 includes snap ring 57, snap ring 57 and mounting panel 6 fixed assembly, one side of snap ring 57 is run through there is ejector pin 53, the fixed pull ring 51 that is equipped with of one end of ejector pin 53, the outer wall of ejector pin 53 is fixed and is equipped with the diaphragm, first spring 52 has been cup jointed to the outer wall of ejector pin 53, the one end and the diaphragm fixed assembly of first spring 52, the other end of first spring 52 and the inner wall fixed assembly of snap ring 57, the lateral wall fixed assembly of intake pipe 9 has sleeve 54, ejector pin 53 pegs graft in sleeve 54, the fixed one end that is equipped with second spring 56 in inner chamber bottom surface of snap ring 57, the fixed kicking block 55 that is equipped with of the other end of second spring 56, kicking block 55 and intake pipe.

When needs are with intake pipe 9 joint on second joint structure 5, at first with pull ring 51 upwards stimulate, pull ring 51 drives diaphragm extrusion first spring 52 through ejector pin 53 and makes it take place deformation, with the horizontal joint of intake pipe 9 in snap ring 57 this moment, and change 56 tops through the second spring and move the rigidity of kicking block 55 with intake pipe 9, loosen pull ring 51 simultaneously, according to the elastic force effect of second spring 56, can push up ejector pin 53 downstream through the diaphragm, and with ejector pin 53 joint in sleeve 54, accomplish fixedly.

Particularly, first joint structure 4 includes stiff end 41, stiff end 41 and 6 fixed assembly of mounting panel, and the one end of stiff end 41 is fixed to be equipped with the one end of articulated seat 42, and the other end of articulated seat 42 is fixed to be equipped with buckle 43, and the one end of buckle 43 is fixed to be equipped with fixture block 44, and the fixed surface of mounting panel 6 is equipped with draw-in groove 46, and fixture block 44 and draw-in groove 46 joint mutually, and the inner wall of draw-in groove 46 is pegged graft and is had inserted bar 45, and inserted bar 45 runs through draw-in.

When pipeline 7 needs to be fixed, pipeline 7 is firstly placed between hinged seat 42 and clamping groove 46, and at this moment, buckle 43 is sleeved on the outer wall of pipeline 7, clamping block 44 is clamped in clamping groove 46, and inserted rod 45 penetrates through clamping groove 46 and clamping block 44, and fixing is completed at this moment.

Specifically, the blocking structure 3 comprises a screw rod 32, the screw rod 32 penetrates through the clamping plate 12, one end of the screw rod 32 is fixedly provided with a blocking block 31, the other end of the screw rod 32 is screwed with a nut 33, one end of the nut 33 is fixedly provided with a piston 34, and the piston 34 is tightly attached to the inner wall of the pipeline 7.

When pressure exists in the pipeline 7, the piston 34 is pressed to move, and the piston 34 drives the blocking block 31 to move through the nut 33 and the screw 32, so that one end of the pipeline 7 is completely blocked.

Specifically, the base 2 is fixedly attached to the lower end of the negative pressure testing machine 1.

The base 2 ensures the stability of the operation of the equipment.

Specifically, the inner wall of the pipeline 7 is fixedly provided with a support block 11, and the support block 11 is clamped with the piston 34.

The abutment 11 acts as a snap-fit piston 34.

The working principle is as follows: when the device is required to work, 3 pipelines 7 with different sizes are connected with an equal-diameter thin-wall stainless steel clamping pressure 8 with the length of 200mm to form a group of test pieces, one end of each test piece is connected with an air pump through the other end of the plugging structure 3, the test pieces are clamped on the first clamping structure 4, the other end of each test piece is connected with the air inlet pipe 9, the air inlet pipe 9 is clamped on the second clamping structure 5, the other end of each test piece is connected with the air pump 10, the air pump is a vacuum pump, the indoor temperature is 20 +/-5 ℃, the test pressure is-80 KPa, the test pressure is kept for 1 hour, the pressure difference between the pipe fitting and the pipe is not more than 5KPa, and other abnormalities do not exist.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and setting are equipped with and all adopt prior art, and conventional model is including circuit connection adopts conventional connection mode among the prior art, and the detail is not repeated here.

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

1. The utility model provides a negative pressure detection device convenient to pipeline is fixed, includes negative pressure test machine (1) and mounting panel (6), one side fixed mounting of negative pressure test machine (1) is equipped with mounting panel (6), its characterized in that: the inner wall of negative pressure test machine (1) is fixed to be equipped with two air pumps (10), the surface of mounting panel (6) is equipped with second joint structure (5), the inner wall joint of second joint structure (5) has intake pipe (9), intake pipe (9) and air pump (10) fixed intercommunication, the surface of mounting panel (6) is equipped with first joint structure (4), the inner wall joint of first joint structure (4) has pipeline (7), the one end and the fixed intercommunication of intake pipe (9) of pipeline (7), fixed being equipped with card pressure (8) between pipeline (7), the other end of pipeline (7) is fixed to be equipped with cardboard (12), the inner wall of cardboard (12) is equipped with block structure (3).

2. The negative pressure detection device convenient for pipeline fixing of claim 1, wherein: the second clamping structure (5) comprises a clamping ring (57), the clamping ring (57) is fixedly assembled with the mounting plate (6), a top rod (53) penetrates through one side of the snap ring (57), one end of the top rod (53) is fixedly provided with a pull ring (51), a transverse plate is fixedly assembled on the outer wall of the top rod (53), a first spring (52) is sleeved on the outer wall of the top rod (53), one end of the first spring (52) is fixedly assembled with the transverse plate, the other end of the first spring (52) is fixedly assembled with the inner wall of the snap ring (57), a sleeve (54) is fixedly assembled on the side wall of the air inlet pipe (9), the ejector rod (53) is inserted in the sleeve (54), one end of a second spring (56) is fixedly assembled on the bottom surface of the inner cavity of the snap ring (57), the other end fixed mounting of second spring (56) has kicking block (55), kicking block (55) and intake pipe (9) looks joint.

3. The negative pressure detection device convenient for pipeline fixing of claim 1, wherein: first joint structure (4) include stiff end (41), stiff end (41) and mounting panel (6) fixed assembly, the fixed one end that is equipped with articulated seat (42) of one end of stiff end (41), the other end fixed assembly of articulated seat (42) is equipped with buckle (43), the fixed one end that is equipped with fixture block (44) of buckle (43), the fixed surface of mounting panel (6) is equipped with draw-in groove (46), fixture block (44) and draw-in groove (46) looks joint, the inner wall of draw-in groove (46) is pegged graft and is had inserted bar (45), inserted bar (45) run through draw-in groove (46) and fixture block (44).

4. The negative pressure detection device convenient for pipeline fixing of claim 1, wherein: the plugging structure (3) comprises a screw rod (32), the screw rod (32) penetrates through the clamping plate (12), one end of the screw rod (32) is fixedly provided with a plugging block (31), the other end of the screw rod (32) is in threaded connection with a nut (33), one end of the nut (33) is fixedly provided with a piston (34), and the piston (34) is tightly attached to the inner wall of the pipeline (7).

5. The negative pressure detection device convenient for pipeline fixing of claim 1, wherein: the lower end of the negative pressure testing machine (1) is fixedly provided with a base (2).

6. The negative pressure detection device convenient for pipeline fixing of claim 4, wherein: the inner wall of pipeline (7) is fixed to be equipped with a piece (11), a piece (11) and piston (34) looks joint.