CN114150982B

CN114150982B - Airtight auxiliary device suitable for on-line micro-deformation door and window test

Info

Publication number: CN114150982B
Application number: CN202111507707.8A
Authority: CN
Inventors: 杨志成; 程煊锐; 马晓钧
Original assignee: Beijing Union University
Current assignee: Beijing Union University
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2023-05-30
Anticipated expiration: 2041-12-10
Also published as: CN114150982A

Abstract

The invention discloses a sealing auxiliary device suitable for on-line micro-deformation door and window testing, which comprises a rectangular frame formed by four self-adaptive angle devices and a plurality of supporting rods; the support rod comprises a mother piece and a child piece, the child piece is arranged on the mother piece in a sliding mode, and a locking piece is arranged on the child piece. The support bars form the sides of a rectangular frame. The self-adaptive angle device comprises a right-angle elastic sheet, and two ends of the right-angle elastic sheet are respectively connected with the first support piece and the second support piece; the first support piece, the second support piece and the sub-piece have the same structure; wherein the adaptive angle former forms the top angle of the rectangular frame. The first support piece and the second support piece of the self-adaptive angle device are arranged on a female piece of the support rod connected with the first support piece and the second support piece in a sliding mode, and a fine adjustment device is arranged on the female piece. The outer side of the rectangular frame is surrounded by a circle of sealing strips. The invention is arranged in the door and window frame of the prediction room, and reduces the problem of poor sealing caused by the unusual deformation and structure proportion of the door and window during the measurement of the ventilation times.

Description

Airtight auxiliary device suitable for on-line micro-deformation door and window test

Technical Field

The invention belongs to the field of room ventilation testing devices, and particularly relates to a sealing auxiliary device suitable for online micro-deformation or unconventional proportion door and window testing.

Background

Ensuring enough fresh air quantity and ventilation times in living rooms has important significance for creating good indoor air quality and meeting sanitary requirements of living rooms. The ventilation frequency is an important index for evaluating the ventilation effect of a room, and a corresponding test method and a corresponding test instrument are needed for evaluating the ventilation effect of the room.

Currently, the ventilation times of a room are evaluated by dividing the ventilation volume of the room by the volume of the room. The main factor affecting the ventilation times of the room is the tightness of the door and window, the traditional ventilation times are mainly tested on the door and window of a standard room by a manufacturer or a detection mechanism, and then the ventilation times of the actual room are calculated according to related parameters, so that the ventilation times of the room of an actual user cannot be accurately reflected. In order to obtain the actual ventilation times of the room, an auxiliary measuring mechanism capable of measuring on line needs to be designed. The general method is that 4 posts are processed to respectively prop up the sealing cloth from the upper, lower, left and right directions and are closely contacted with the door frame, and then the ventilation times of the room are measured by a ventilation times measuring system on the sealing cloth. As the structural size of the doors of each room differs; the door frame is deformed for a long time, the columns are required to be temporarily processed, material waste is caused, the door frame is oversized, ultra-small, included angles of the door frame are irregular, and the ventilation times are easy to measure.

Disclosure of Invention

The invention aims to provide a sealing auxiliary device suitable for on-line micro-deformation door and window testing, and aims to solve the problem of door and window sealing during on-line measurement of room ventilation times.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

an airtight auxiliary device suitable for on-line micro-deformation door and window testing comprises a rectangular frame formed by four self-adaptive angle-forming devices and a plurality of supporting rods;

the support rod comprises a parent component and a child component, the child component is arranged on the parent component in a sliding mode, a locking component is arranged on the child component and used for locking the relative position of the child component and the parent component connected with the child component, and the support rod forms the edge of the rectangular frame;

the self-adaptive angle device comprises a right-angle elastic sheet, and two ends of the right-angle elastic sheet are respectively connected with a first support piece and a second support piece; the first support piece and the second support piece have the same structure as the sub-piece; wherein the adaptive angle former forms the top angle of the rectangular frame;

the first support piece and the second support piece of the self-adaptive angle device are arranged on a mother piece of a supporting rod connected with the first support piece and the second support piece in a sliding way, and a fine adjustment device is arranged on the mother piece and is used for fine adjustment of the relative position of the mother piece and the first support piece or the second support piece connected with the mother piece;

the outer side of the rectangular frame is surrounded by a circle of sealing strips; the sealing strip is configured to feed back to the window frame with a non-uniform force when pressed by the window frame.

In an embodiment, the sealing strip is a filling structure with a rectangular cross section, a plurality of lever assemblies are arranged in the sealing strip along the length direction of the sealing strip, each lever assembly comprises a base, two ends of each base are respectively provided with a supporting rod which is oppositely arranged, the end parts of each supporting rod are connected with a lever, the end parts of two levers which are close to each other are jointly abutted against a round inflation ball, and the end parts of two levers which are far away from each other are respectively abutted against a T-shaped sliding valve; a long round inflating ball is arranged on the T-shaped sliding valve; the lever is connected with one end of the round inflatable ball, and the lever is connected with one end of the T-shaped sliding valve; the base is arranged on one end face inside the sealing strip, the round inflatable ball and the oblong inflatable ball are positioned in the sealing strip and connected to the opposite end faces of the base, and the long axis of the oblong inflatable ball is perpendicular to the connected end faces.

In one embodiment, the oblong inflatable ball is positioned in a rectangular hole groove, and one end of the hole groove is provided with a perforation for the T-shaped sliding valve to slide; the part outside the lever assembly, the round inflatable ball and the hole groove inside the sealing strip is a filling body.

In an embodiment, the fine adjustment device comprises a base, the base is mounted on the parent piece, an eccentric shaft is arranged on the base, a cam is mounted on the eccentric shaft, the cam is provided with a first notch, a second notch and a carrying handle, the cam is abutted against one end of a transition elastic piece, and the other end of the transition elastic piece is abutted against the end part of the first support piece or the second support piece; the first notch or the second notch can be abutted against the transition elastic sheet by rotating the cam through the carrying handle, and the distance between the first notch and the eccentric shaft is larger than the distance between the second notch and the eccentric shaft.

In an embodiment, the transition elastic sheet comprises two opposite abutting plates, elastic steel sheets are respectively arranged between opposite ends of the two abutting plates, and the two elastic steel sheets are in an inward bending state in a natural state; one of the abutting plates abuts against a first notch or a second notch of the cam; the other abutting plate abuts against the first support piece or the second support piece of the self-adaptive angle-forming device.

In an embodiment, the female part of the supporting rod is formed with a C-shaped groove, the sub-parts of the supporting rod are slidably arranged on the C-shaped groove, and the female part and the sub-parts together form a rectangular profile structure.

In an embodiment, the locking member comprises a screw rod, the screw rod is in threaded connection with the sub-member, and the end portion of the screw rod is abutted against the parent member, so that the parent member and the sub-member are mutually meshed and fixed.

In one embodiment, a layer of sealing cloth is covered on the outer sides of the rectangular frame and the sealing strip, and mounting holes for mounting the ventilation frequency measuring system are formed in the sealing cloth.

The invention has the advantages that:

the invention provides the airtight auxiliary device suitable for the on-line micro-deformation door and window test, which has the advantages of lower cost, quick installation and disassembly and repeated use, and is suitable for doors and windows with various proportional structures.

Further, the device is arranged in a door and window frame of a predicted room, and the problem of poor sealing caused by unusual deformation and structure proportion of the door and window is reduced when the ventilation times are measured.

Drawings

FIG. 1 is a schematic diagram of the main structure of an airtight auxiliary device suitable for on-line micro-deformation door and window testing;

FIG. 2 is a schematic perspective view of the support bar and locking member of the present invention;

FIG. 3 is a schematic cross-sectional view of the support bar and locking member of the present invention;

FIG. 4 is a schematic view of the structure of the adaptive angle former of the present invention;

FIG. 5 is a schematic view of the fine tuning device of the present invention;

FIG. 6 is a schematic structural view of a transitional spring plate according to the present invention;

FIG. 7 is a schematic structural view of the sealing tape of the present invention;

fig. 8 is a schematic view of the lever assembly of the present invention.

Detailed Description

Referring to fig. 1, fig. 1 illustrates a main structure of an airtight auxiliary apparatus suitable for an on-line micro-deformation door and window test. As shown in fig. 1, the airtight auxiliary device suitable for on-line micro-deformation door and window testing provided by the embodiment comprises four self-adaptive angle devices 1 and a rectangular frame formed by a plurality of support rods 2. The outer side of the rectangular frame encloses a circle of sealing strips 3, which sealing strips 3 may be glued to the outer side of the rectangular frame. A layer of sealing cloth 4 is covered on the outer side of the rectangular frame and the sealing strip 3, and the sealing cloth 4 is provided with a mounting hole 41 for mounting a ventilation frequency measuring system.

Referring to fig. 2 and 3, the support bar 2 includes a main part 21 and a sub part 22, wherein the sub part 22 is slidably arranged on the main part 21, i.e. the support bar 2 is a telescopic and length-adjustable profile member. The female member 21 is formed with a C-shaped groove on which the male member 22 is slidably provided. The parent element 21 and the child element 22 together form a rectangular profile structure. The sub-piece 22 is provided with a locking piece 5, the locking piece 5 comprises a screw rod, the screw rod is in threaded connection with the sub-piece 22, and the end part of the screw rod is abutted against the main piece 21, so that the main piece 21 and the sub-piece 22 are mutually meshed and fixed, and the relative position of the sub-piece 22 and the main piece 21 connected with the sub-piece is locked. The support bars 2 constitute the sides of a rectangular frame. The length of the support bar 2 can thus be adjusted according to the edges of the window frame 6. When the side of the window frame 6 is long, a plurality of support bars 2 may be used, and the sub-members 22 of the plurality of support bars 2 and the main member 21 may be coupled to each other by the locking member 5.

Referring to fig. 4, the adaptive corner connector 1 forms the top corner of a rectangular frame. The self-adaptive angle connector 1 comprises a right-angle elastic sheet 11, and two ends of the right-angle elastic sheet 11 are respectively connected with a first support 12 and a second support 13. The right-angle spring 11 and the first support 12 and the second support 13 can be hinged, screwed and the like. The first and

second supports

12, 13 are identical in structure to the sub-member 22. In this way, the female parts 21 of the first support 12 and the second support 13 can be connected in a matched manner, so that the rectangular frame formed by the self-adaptive angle connector 1 and the support rod 2 can be further formed. It should be noted that, since the first and

second support members

12 and 13 can be only matingly connected with the female member 21 of the support rod 2, the positions of connection with the first and

second support members

12 and 13 can be only the female member 21 of the support rod 2 for the sides of the rectangular frame. When the edges of the window frame 6 are short, the supporting rod 2 can be only one female part 21, and only the first support part 12 or the second support part 13 of the adaptive angle regulator 1 can be connected in a matching way.

The first support piece 12 and the second support piece 13 of the self-adaptive angle former 1 are arranged on the female piece 21 of the support rod 2 connected with the female piece in a sliding way, and a fine adjustment device 7 is arranged on the female piece 21, and the fine adjustment device 7 is used for fine adjusting the relative position of the female piece 21 and the first support piece 12 or the second support piece 13 connected with the female piece.

Referring to fig. 5 and 6, the trimming device 7 includes a base 71, and the base 71 is mounted to the female member 21, which may be adhesive. The base 71 is provided with an eccentric shaft 72, the eccentric shaft 72 is provided with a cam 73, the cam 73 is provided with a first notch 74, a second notch 75 and a carrying handle 76, the cam 73 is abutted against one end of a transition spring plate 77, and the other end of the transition spring plate 77 is abutted against the end part of the first support 12 or the second support 13. Wherein the cam 73 is rotated by the carrying handle 76 to enable the first notch 74 or the second notch 75 to be abutted against the transition spring plate 77, and the distance between the first notch 74 and the eccentric shaft 72 is larger than the distance between the second notch 75 and the eccentric shaft 72. The transition spring plate 77 includes two opposite abutting plates 771, and elastic steel plates 772 are respectively arranged between opposite ends of the two abutting plates 771, and the two elastic steel plates 772 are in an inward bending state in a natural state; one of the abutment plates 771 abuts against the first notch 74 or the second notch 75 of the cam 73; the other abutment plate 771 abuts the first leg 12 or the second leg 13 of the adaptive angle former 1. In this way, before the second notch 75 is mounted on the window frame 6, the second notch 75 is abutted against the abutment plate 771, and after the mounting, the carrying handle 76 is moved to make the first notch 74 abutted against the abutment plate 771, and further the elastic steel sheet 772 is compressed, so that the edge where the fine adjustment device 7 is located is extended, and the adaptive angle regulator 1 is pressed against the window and door frame 6, thereby improving the tightness. In this embodiment, each side of the rectangular frame is provided with a fine adjustment device 7. When the fine adjusting device 7 is not arranged at the joint of the first support piece 12 and the second support piece 13 of the self-adaptive angle former 1 and the female piece 21 of the support rod 2, the first support piece 12 or the second support piece 13 is connected and fixed with the female piece 21 of the support rod 2 by a fastener.

Referring to fig. 7 and 8, the sealing strip 3 is configured to feedback to the window frame 6 with a non-uniform force when pressed by the window frame 6. Specifically, the sealing strip 3 is a filling structure with a rectangular section, a plurality of lever assemblies 31 are arranged in the sealing strip 3 along the length direction of the sealing strip, each lever assembly 31 comprises a base 32, two ends of each base 32 are respectively provided with a supporting rod 33 which is oppositely arranged, and the end parts of the supporting rods 33 are connected with a lever 34. The strut 33 is connected to the lever 34 via a fulcrum 40 to form a teeter-totter-like structure. The ends of the two levers 34 close to each other are abutted together against a circular inflatable ball 35, and the ends of the two levers 34 far from each other are respectively abutted against a T-shaped sliding valve 36. An oblong inflatable balloon 37 is mounted on the T-shaped slide valve 36. The lever 34 has different arms at two ends, and the arm of force of the lever 34 connected to one end of the circular inflatable ball 35 is smaller than the arm of force of the lever 34 connected to one end of the T-shaped sliding valve 36. The base 32 is mounted on one end face inside the sealing strip 3, the circular inflatable ball 35 and the oblong inflatable ball 37 are located inside the sealing strip 3 and connected to opposite end faces of the base 32, and the long axis of the oblong inflatable ball 37 is perpendicular to the end face to which it is connected. The oblong inflatable ball 37 is positioned in a rectangular slot 38, and one end of the slot 38 is provided with a perforation for sliding the T-shaped sliding valve 36. The lever assembly 31, the circular inflatable ball 35 and the parts outside the hole groove 38 inside the sealing strip 3 are the filling body 39. The filler 39 may be methyl silicone oil in that it has many special properties such as good transmissibility, small temperature sticking coefficient, high and low temperature resistance, oxidation resistance, low volatility, good insulation, small surface tension, no corrosion to metals, no toxicity, etc.

In the installation and the test, since the weather strip 3 is pressed by the window frame 6 and deformed, one end contacting the window frame 6 is a round inflatable ball 35 and a long round inflatable ball 37. The distances between the round inflatable ball 35 and the oblong inflatable ball 37 and the supporting point are unequal, when the moment formed by the same extrusion is unequal, in order to improve the stability of the moment, two groups of oblong inflatable balls 37 are arranged in the sealing strip, and in the dynamic process, the acting forces fed back by the round inflatable ball 35 and the oblong inflatable ball 37 to the window frame 6 are unequal, so that the holding power of the auxiliary device to the door frame is tighter. Because the different moments generated by the circular inflatable ball 35 and the oblong inflatable ball 37 are always present in the test, the auxiliary device has good stability and avoids falling off during the test. After the test is completed, referring to fig. 8, if a pushing force F is applied from the side to shift the center of the circular inflatable ball 35, the reaction force with the lever 34 becomes small, and thus the pushing force of the lever 34 to the oblong inflatable ball 37 becomes small, the original balance is destroyed, and the auxiliary device can be easily removed.

The airtight auxiliary device suitable for the on-line micro-deformation door and window test is installed and debugged according to the following steps during measurement.

And in the first step, the four self-adaptive angle formers 1 are taken out and arranged vertically and horizontally.

And secondly, taking out the N support rods 2, wherein the number of the taken out support rods is equal up and down and equal left and right, and the length of the support rods is slightly larger than the height and width of the door and window frame 6 after the assembly is completed. The number of the use is appropriately determined according to the specific needs.

And thirdly, taking out 4 self-adaptive fine tuning devices 7 which are respectively arranged on the support rods 2.

Fourthly, installing the locking piece 5 on the supporting rod 2; typically, the device is not removed after the first use and installation, but the tightness is adjusted.

And fifthly, assembling the four self-adaptive angle formers 1 with the support rods 2 according to the arranged positions to form a rectangular frame.

Step six, sleeving the sealing strip 3 on the outer side of the rectangular frame, and covering a special sealing cloth 4 for measuring the ventilation times; the combination is then fitted together to the window frame 6 to be tested, and the locking member 5 and the trimming means 7 are then pressed.

And seventhly, completing measurement according to the requirement of the ventilation times measurement method.

Although the window frame is taken as an example in the above embodiment, the embodiment of the present invention can be applied to the door frame as well, and the principle of the two is consistent, and will not be described herein.

The sealing auxiliary device for the on-line micro-deformation door and window test can be quickly assembled or disassembled, improves the sealing degree, improves the detection reliability of the ventilation times, and has stronger adaptability.

The invention reduces the processing of the temporary supporting piece and saves the production cost. The invention is arranged in the door and window frame of the prediction room, and the gap between the auxiliary device and the door and window frame is adjusted when the ventilation times are measured, thereby reducing gap leakage and improving detection precision.

The foregoing is a description of the preferred embodiments of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any equivalent transformation, simple substitution, etc. based on the technical scheme of the present invention can be made without departing from the spirit and scope of the present invention.

Claims

1. The airtight auxiliary device suitable for the on-line micro-deformation door and window test is characterized by comprising a rectangular frame formed by four self-adaptive angle devices and a plurality of supporting rods;

the outer side of the rectangular frame is surrounded by a circle of sealing strips; the sealing strip is configured to feed back to the window frame with non-uniform force when pressed by the window frame;

the sealing strip is of a filling structure with a rectangular cross section, a plurality of lever assemblies are arranged in the sealing strip along the length direction of the sealing strip, each lever assembly comprises a base, two ends of each base are respectively provided with a supporting rod which are oppositely arranged, the end parts of each supporting rod are connected with a lever, the end parts of two levers which are close to each other are mutually abutted against a round air filling ball, and the end parts of two levers which are far away from each other are respectively abutted against a T-shaped sliding valve; a long round inflating ball is arranged on the T-shaped sliding valve; the lever is connected with one end of the round inflatable ball, and the lever is connected with one end of the T-shaped sliding valve; the base is arranged on one end face inside the sealing strip, the round inflatable ball and the oblong inflatable ball are positioned inside the sealing strip and connected to the opposite end faces of the base, and the long axis of the oblong inflatable ball is perpendicular to the connected end faces;

the long round inflating ball is positioned in a rectangular hole groove, and one end of the hole groove is provided with a perforation for the T-shaped sliding valve to slide; the lever assembly, the round inflatable ball and the part outside the hole groove in the sealing strip are filled with the filler;

the fine adjustment device comprises a base, the base is arranged on the parent piece, an eccentric shaft is arranged on the base, a cam is arranged on the eccentric shaft, the cam is provided with a first notch, a second notch and a carrying handle, the cam is abutted to one end of a transition elastic piece, and the other end of the transition elastic piece is abutted to the end part of the first support piece or the second support piece; the first notch or the second notch can be abutted against the transition elastic sheet by rotating the cam through the carrying handle, and the distance between the first notch and the eccentric shaft is larger than the distance between the second notch and the eccentric shaft;

the transition elastic sheet comprises two opposite abutting plates, elastic steel sheets are respectively arranged between the opposite end parts of the two abutting plates, and the two elastic steel sheets are in an inward bending state in a natural state; one of the abutting plates abuts against a first notch or a second notch of the cam; the other abutting plate abuts against the first support piece or the second support piece of the self-adaptive angle-forming device.

2. The tightness auxiliary device for on-line micro-deformation door and window testing according to claim 1, wherein a C-shaped groove is formed on a mother part of the supporting rod, a child part of the supporting rod is slidably arranged on the C-shaped groove, and the mother part and the child part jointly form a rectangular sectional material structure.

3. The sealing auxiliary device for on-line micro-deformation door and window testing according to claim 2, wherein the locking piece comprises a screw rod which is in threaded connection with the sub-piece and is pressed against the parent piece through the end part of the screw rod, so that the parent piece and the sub-piece are mutually meshed and fixed.

4. The sealing auxiliary device for on-line micro-deformation door and window testing according to claim 1, wherein a layer of sealing cloth is covered on the outer sides of the rectangular frame and the sealing strips, and mounting holes for mounting a ventilation frequency measuring system are formed in the sealing cloth.