CN113049421B

CN113049421B - Building sealant fatigue resistance testing device and operation method thereof

Info

Publication number: CN113049421B
Application number: CN202110175995.5A
Authority: CN
Inventors: 冷秩宇; 贾占坤; 王玲
Original assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; MCC Inspection and Certification Co Ltd
Current assignee: Central Research Institute of Building and Construction Co Ltd MCC Group; MCC Inspection and Certification Co Ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2022-11-22
Anticipated expiration: 2041-02-09
Also published as: CN113049421A

Abstract

The invention provides a building sealant fatigue resistance testing device and an operation method thereof, and belongs to the technical field of building material performance testing. A building sealant fatigue resistance testing device comprises a base, wherein the outer walls of two sides of the base are both connected with moving seats in a sliding manner, the tops of the two moving seats are respectively connected with a first adjusting plate and a second adjusting plate, the outer walls of the first adjusting plate and the second adjusting plate are both connected with clamping positions, the top of the base is connected with a supporting column, the outer wall of the supporting column is rotatably connected with a first connecting rod, and the two ends of the first connecting rod are respectively rotatably connected with a second connecting rod and a third connecting rod; the push rod drives the connecting rods to rotate differently, so that the moving seats on the two sides are relatively close to or far away from each other, the anti-fatigue test of the sealant stretching-compressing cycle is realized, the thrust of the push plate to the piston is suddenly changed, the force of the push rod on the connecting rods is suddenly increased or decreased, and the detection effect and the detection precision of the anti-fatigue test of the sealant are improved.

Description

Building sealant fatigue resistance testing device and operation method thereof

Technical Field

The invention relates to the technical field of building material performance testing, in particular to a building sealant fatigue resistance testing device and an operation method thereof.

Background

Whether window structures or other forms of enclosure and trim structures are considered to be made up of units, seams are created between each unit, and most building sealants are required to seal and fill the structure.

The building sealant belongs to synthetic adhesives, the main body of the building sealant is a polymer, and the properties of the building sealant can be divided into three categories: the bulk property, the process property and the use property (product performance) are determined by the chemical property and the physical structure of the sealant main body polymer, and can be accurately and repeatedly measured; the process property refers to the relevant characteristics of the sealant in the manufacturing process; the use properties (product properties) are understood to mean essentially the combination of the properties of the sealant during the formation of the adhesive joint, which depend on the functional requirements of the construction joint for the sealant.

Common sealed glue fatigue tester generally by the servo, tension mechanism and control system constitute, can carry out quick loading, the uninstallation at certain load within range, reloading continuous cycle fatigue test, but the sealed glue fatigue tester that has now generally adopts the sealed fatigue resistance test equipment that glues of building that is reformed transform by universal tester, this type of equipment structure is complicated, and the size is great, the cost is high, it is comparatively complicated to use, need build solitary laboratory for this type of equipment, lead to the detection cost higher, be unfavorable for extensively promoting.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a building sealant fatigue resistance testing device and an operation method thereof.

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

the utility model provides a sealed fatigue resistance testing arrangement that glues of building, includes the base, the equal sliding connection of base both sides outer wall has the removal seat, two the top of removing the seat is connected with first regulating plate and second regulating plate respectively, first regulating plate and second regulating plate outer wall all are connected with presss from both sides the dress position, the top of base is connected with the support column, the support column outer wall rotates and is connected with first connecting rod, the both ends of first connecting rod rotate respectively and are connected with second connecting rod and third connecting rod, the one end that first connecting rod was kept away from to second connecting rod and third connecting rod is connected respectively at two outer walls that remove the seat, base outer wall connection has pushing mechanism, pushing mechanism rotates with the third connecting rod and links to each other.

Preferably, pushing mechanism includes the motor, motor fixed connection is at the outer wall of base, the base outer wall is dug flutedly, recess inner wall is connected with the axis of rotation, axis of rotation outer wall is connected with first gear, the output of motor is connected with the pivot, the one end that the motor was kept away from in the pivot is passed the base and is linked to each other with the axis of rotation, the meshing of first gear outer wall is connected with the rack board, rack board outer wall connection has first push rod.

Preferably, the outer wall of the base is connected with a supporting seat, the top of the supporting seat is connected with a box body and a pipe body, and the box body and the pipe body are communicated with each other.

Preferably, first push rod swing joint is in the box, just the one end that rack plate was kept away from to first push rod is connected with the push pedal, push pedal swing joint is in the box, the upper and lower inner wall both sides of box are provided with inclined plane and arch respectively, the push pedal includes casing and inner panel, casing swing joint is at the outer wall of first push rod, inner panel sliding connection is at shells inner wall, just be connected with elastic element between the diapire of shells inner wall and inner panel.

Preferably, body inner wall sliding connection has the piston, piston outer wall connection has the second push rod, the one end that the piston was kept away from to the second push rod passes the body and is connected with solid fixed ring, gu fixed ring inner wall rotates and is connected with the dwang, gu fixed ring's one end is kept away from to the dwang rotates the diapire of connection at the third connecting rod.

Preferably, the inner wall of the tube body is connected with two guide rods, and the piston is connected to the outer walls of the guide rods in a sliding manner.

Preferably, the outer wall of the base is connected with a fixing plate, the outer wall of the fixing plate is connected with a fixing rod, the outer wall of the fixing rod is rotatably connected with a roller, and the outer wall of the rack plate is provided with a first sliding groove matched with the roller in a chiseled mode.

Preferably, the outer wall of the base is connected with a guide rail, and a second sliding groove matched with the guide rail is formed in the bottom wall of the movable seat in a chiseling mode.

Preferably, press from both sides the position including two splint, two splint are connected respectively at the both sides inner wall of first regulating plate, just threaded hole is dug to first regulating plate outer wall, threaded hole inner wall swing joint has the bolt, the bolt offsets with the splint activity.

The invention also discloses an operation method of the building sealant fatigue resistance testing device, which comprises the following steps:

s1, when the compression function of the device is needed, two test workpieces are placed on clamping positions on two sides, a bolt is rotated to enable the bolt to press a clamping plate to fix the test workpieces, sealant is connected between the two test workpieces, then the motor is controlled to operate, the output end of the motor drives a first gear to rotate, the first gear is meshed with a rack plate, the rack plate moves to the right, the rack plate pushes a first push rod to move to the right inside a box body, the box body is communicated with a pipe body, a piston is extruded by air pressure between the push plate and the piston to move to the right inside the pipe body, the piston drives a second push rod to move to the right, the second push rod drives a third connecting rod to rotate by taking a supporting column as a circle center through a rotating rod, the third connecting rod pulls the first connecting rod to swing, the first connecting rod drives the second connecting rod to rotate, the two movable seats are close to each other, and when the stretching function of the device is needed, the motor is controlled to rotate reversely, the two movable seats are far away from each other, so that the test workpieces are subjected to two forces with the same magnitude and opposite directions, namely the force required by the sealant fatigue resistance test;

s2, in the process of meshing the rack plate and the first gear, the roller slides in the first sliding groove at the top of the rack plate;

s3, when the first push rod pushes the push plate to move in the box body, the inner plate is extruded by the inclined surface to exert force on the elastic element, the elastic element is compressed, the inner plate is retracted into the shell, the shell is extruded by the protrusions and can swing up and down in a reciprocating mode on the outer side of the first push rod, the pushing force on the piston is changed frequently, and the force of the second push rod on the third connecting rod is changed.

The technical scheme of the invention has the following benefits:

1. according to the building sealant fatigue resistance testing device and the operation method thereof, the rack plate drives the push rod to move left and right in a reciprocating manner by controlling the meshing direction of the first gear and the rack plate, the forces applied to the two moving seats are the same and drive the testing workpieces to be far away from or close to each other through the rotation change between the connecting rods, so that the fatigue resistance test after the stretching-compressing cycle of the sealant is realized, and the performance detection of the sealant is facilitated.

2. This building sealant fatigue resistance capability test device and operation method thereof, because in the actual life application, the power that sealed glue received does not make and only increases gradually or dwindles, there is also the possibility of sudden change, promote the push pedal in the box removal through first push rod, the push pedal receives inclined plane and bellied influence, make the push pedal change to the power of piston, and then make the dynamics that the second push rod promoted the third connecting rod increase suddenly or dwindle, can detect the sealed condition of glue when receiving different pressure or pulling force, improve the detection effect and the detection precision of device.

3. According to the building sealant fatigue resistance testing device and the operation method thereof, the guide rod is arranged in the pipe body, and the piston slides on the outer side of the guide rod, so that the stability of the piston in the moving process is improved.

4. According to the building sealant fatigue resistance testing device and the operation method thereof, the first gear is meshed with the rack plate to enable the rack plate to move left and right, and in the process, the roller slides in the first sliding groove in the top of the rack plate, so that the running stability of the device is improved.

5. According to the building sealant fatigue resistance testing device and the operation method thereof, the bolt is screwed in the threaded hole by rotating the bolt, and the bolt penetrates through the threaded hole and then abuts against and is pressed on the clamping plate, so that the clamping plate fixes a test workpiece, and the test result is prevented from being influenced by random shaking in the fatigue resistance testing process.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a first structural schematic diagram of a building sealant fatigue resistance testing device provided by the invention;

FIG. 2 is a second structural schematic diagram of a building sealant fatigue resistance testing apparatus provided by the present invention;

FIG. 3 is a schematic structural diagram of a movable seat of the fatigue resistance testing device for building sealant according to the present invention;

FIG. 4 is a schematic structural view of a first adjusting plate of the building sealant fatigue resistance testing device according to the present invention;

FIG. 5 is a schematic cross-sectional structural view of a box body and a pipe body of the testing device for fatigue resistance of building sealant according to the present invention;

FIG. 6 is a schematic structural view of a first push rod and a push plate of the building sealant fatigue resistance testing device provided by the invention;

fig. 7 is a schematic structural view of a part a in fig. 2 of a building sealant fatigue resistance testing device according to the present invention.

Wherein the figures include the following reference numerals:

1. a base; 101. a groove; 102. a rotating shaft; 103. a first gear; 2. a movable seat; 3. a first adjusting plate; 4. a second adjusting plate; 5. a support pillar; 501. a first link; 502. a second link; 503. a third link; 6. a motor; 7. a rack plate; 701. a first chute; 8. a first push rod; 9. a supporting base; 10. a box body; 11. a tube body; 12. pushing the plate; 121. a housing; 122. an inner plate; 123. an elastic element; 13. a piston; 14. a second push rod; 15. a fixing ring; 16. rotating the rod; 17. a bevel; 18. a protrusion; 19. a guide rod; 20. a fixing plate; 21. a fixing rod; 22. a roller; 23. a guide rail; 24. a second chute; 25. a splint; 26. a threaded hole; 27. and (4) bolts.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

Example 1:

referring to fig. 1-4, a building sealant fatigue resistance testing device, which comprises a base 1, wherein the outer walls of two sides of the base 1 are respectively connected with a movable seat 2 in a sliding manner, the tops of the two movable seats 2 are respectively connected with a first adjusting plate 3 and a second adjusting plate 4, the outer walls of the first adjusting plate 3 and the second adjusting plate 4 are respectively connected with a clamping position, the top of the base 1 is connected with a supporting column 5, the outer wall of the supporting column 5 is rotatably connected with a first connecting rod 501, the two ends of the first connecting rod 501 are respectively rotatably connected with a second connecting rod 502 and a third connecting rod 503, the ends, far away from the first connecting rod 501, of the second connecting rod 502 and the third connecting rod 503 are respectively connected with the outer walls of the two movable seats 2, the outer wall of the base 1 is connected with a pushing mechanism, the pushing mechanism is rotatably connected with the third connecting rod 503, the clamping position comprises two clamping plates 25, the two clamping plates 25 are respectively connected with the inner walls of two sides of the first adjusting plate 3, the outer wall of the first adjusting plate 3 is provided with a threaded hole 26, the inner wall of the threaded hole 26 is movably connected with a bolt 27, and the bolt 27 is movably abutted against the clamp plate 25.

When the device works, two test workpieces are arranged on clamping positions on two sides, the pushing mechanism is controlled to work, the pushing mechanism pushes or pulls the third connecting rod 503 to move, the third connecting rod 503 drives the first connecting rod 501 to rotate by the 5-bit circle center of the supporting column, the first connecting rod 501 drives the second connecting rod 502 to rotate, the force applied to the two test workpieces is the same, the two moving seats 2 are close to or far away from each other at the top of the base 1, the anti-fatigue test after the stretching-compressing cycle of the sealant is realized, and the performance detection of the sealant is facilitated.

Example 2:

referring to fig. 1, fig. 2, fig. 5, fig. 6 and fig. 7, a building sealant fatigue resistance testing apparatus, which is substantially the same as that of embodiment 1, further, the pushing mechanism includes a motor 6, the motor 6 is fixedly connected to the outer wall of the base 1, a groove 101 is cut on the outer wall of the base 1, a rotation shaft 102 is connected to the inner wall of the groove 101, a first gear 103 is connected to the outer wall of the rotation shaft 102, the output end of the motor 6 is connected to a rotation shaft, one end of the rotation shaft, which is far away from the motor 6, passes through the base 1 and is connected to the rotation shaft 102, a rack plate 7 is engaged with the outer wall of the first gear 103, the outer wall of the rack plate 7 is connected to a first push rod 8, the outer wall of the base 1 is connected to a support seat 9, the top of the support seat 9 is connected to a box 10 and a tube 11, the box 10 and the tube 11 are mutually communicated, the first push rod 8 is movably connected to the box 10, and the push rod 12 is movably connected to one end of the first push rod 8, the push rod 12 is connected to the box 10, both sides of the upper and lower inner wall of the box 10 are respectively provided with an inclined plane 17 and a protrusion 18, the push rod 12 and a piston 13, the piston 13 is connected to the inner wall of the piston 13, the piston 13 is connected to a second piston 13, the piston 13 is connected to the piston 13, the inner wall of the inner wall, the piston 13.

In practical application, the force applied to the sealant may change suddenly, the motor 6 is controlled to operate, the output end of the motor 6 drives the first gear 103 to rotate, the first gear 103 and the rack plate 7 are meshed with each other, the rack plate 7 moves to the right, the rack plate 7 pushes the first push rod 8 to move to the right inside the box 10, the box 10 is communicated with the tube 11, the gas between the push plate 12 and the piston 13 presses the piston 13 to move to the right inside the tube 11, the piston 13 drives the second push rod 14 to move to the right, the second push rod 14 drives the connecting rods to rotate through the rotating rod 16, while the first push rod 8 pushes the push plate 12 to move inside the box 10, the inner plate 122 is pressed by the inclined surface 17 to apply force to the elastic element 123, the elastic element 123 is compressed, the inner plate 122 is retracted into the shell 121, the shell 121 is pressed by the protrusion 18, the inner plate can swing up and down outside the first push rod 8 in a reciprocating manner, so that the push plate 12 can change the pushing force applied to the piston 13 frequently, the force applied to the third connecting rod 503 can increase or decrease the force applied to the device frequently, and the device can detect the situation without the pressure or the sealant, and improve the detection accuracy.

Example 3:

referring to fig. 5-7, a building sealant fatigue resistance testing device, which is substantially the same as that of embodiment 1, further, two guide rods 19 are connected to the inner wall of the tube 11, and the piston 13 is slidably connected to the outer walls of the guide rods 19; sliding the piston 13 on the outer wall of the guide rod 19 is beneficial to improving the stability of the piston 13 during movement.

The outer wall of the base 1 is connected with a fixed plate 20, the outer wall of the fixed plate 20 is connected with a fixed rod 21, the outer wall of the fixed rod 21 is rotatably connected with a roller 22, and the outer wall of the rack plate 7 is provided with a first sliding groove 701 matched with the roller 22 in a chiseled mode; in the process that the rack plate 7 is meshed with the first gear 103, the roller 22 slides in the first sliding groove 701 synchronously, which is beneficial to improving the running stability of the device.

The outer wall of the base 1 is connected with a guide rail 23, and the bottom wall of the movable seat 2 is provided with a second sliding chute 24 matched with the guide rail 23 in a chiseling way; the moving stability of the moving seat 2 is improved.

s1, when the compression function of the device needs to be used, two test workpieces are placed on clamping positions on two sides, a bolt 27 is rotated to enable the bolt 27 to abut against a clamping plate 25 to fix the test workpieces, sealant is connected between the two test workpieces, then a motor 6 is controlled to operate, the output end of the motor 6 drives a first gear 103 to rotate, the first gear 103 and a rack plate 7 are meshed with each other, the rack plate 7 moves rightwards, the rack plate 7 pushes a first push rod 8 to move rightwards in a box body 10, the box body 10 is communicated with a pipe body 11, a piston 13 is squeezed by air pressure between a push plate 12 and the piston 13 to move rightwards in the pipe body 11, the piston 13 drives a second push rod 14 to move rightwards, the second push rod 14 drives a third connecting rod 503 to rotate by taking a supporting column 5 as a circle center through a rotating rod 16, the third connecting rod 503 pulls the first connecting rod 501 to swing, the first connecting rod 501 drives a second connecting rod 502 to rotate, the two movable seats 2 are made to approach each other, when the tension function of the device needs to use, the motor 6 is controlled to rotate reversely, the two movable seats 2 are made to move away from each other, so that the two test workpieces which are subjected to be equal in the fatigue resistance of two workpieces to be tested and the two opposite directions, and the required fatigue tests are the two sealants;

s2, in the process that the rack plate 7 is meshed with the first gear 103, the roller 22 slides in the first sliding groove 701 at the top of the rack plate 7;

s3, when the first push rod 8 pushes the push plate 12 to move in the box body 10, the inner plate 122 is extruded by the inclined surface 17 to apply force to the elastic element 123, so that the elastic element 123 is compressed, the inner plate 122 retracts into the shell 121, the shell 121 is extruded by the bulge 18 to swing up and down in a reciprocating manner on the outer side of the first push rod 8, further the pushing force on the piston 13 is changed frequently, and the force applied by the second push rod 14 to the third connecting rod 503 is changed.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a building sealant fatigue resistance testing arrangement, includes base (1), remove seat (2), first regulating plate (3), second regulating plate (4), support column (5), motor (6), rack plate (7), first push rod (8), supporting seat (9), box (10), body (11), push pedal (12), piston (13), second push rod (14), solid fixed ring (15), dwang (16), inclined plane (17), arch (18), guide bar (19), fixed plate (20), dead lever (21), gyro wheel (22), guide rail (23), second spout (24), splint (25), screw hole (26), bolt (27), its characterized in that, base (1) both sides outer wall all sliding connection has removal seat (2), two the top of removing seat (2) is connected with first regulating plate (3) and second regulating plate (4) respectively, first regulating plate (3) and second regulating plate (4) outer wall all are connected with presss from both sides the position, the top of base (1) is connected with support column (5) and rotates, the outer wall of first regulating plate (5) is connected with first connecting rod (501), the connecting rod (501) and the second connecting rod (501) and connecting rod (501) are connected with the connecting rod (501) respectively, one ends, far away from the first connecting rod (501), of the second connecting rod (502) and the third connecting rod (503) are respectively connected to the outer walls of the two movable seats (2), the outer wall of the base (1) is connected with a pushing mechanism, and the pushing mechanism is rotatably connected with the third connecting rod (503); the pushing mechanism comprises a motor (6), the motor (6) is fixedly connected to the outer wall of the base (1), a groove (101) is formed in the outer wall of the base (1), a rotating shaft (102) is connected to the inner wall of the groove (101), a first gear (103) is connected to the outer wall of the rotating shaft (102), the output end of the motor (6) is connected with a rotating shaft, one end, far away from the motor (6), of the rotating shaft penetrates through the base (1) and is connected with the rotating shaft (102), a rack plate (7) is connected to the outer wall of the first gear (103) in a meshed mode, and a first push rod (8) is connected to the outer wall of the rack plate (7);

the outer wall of the base (1) is connected with a supporting seat (9), the top of the supporting seat (9) is connected with a box body (10) and a pipe body (11), and the box body (10) and the pipe body (11) are communicated with each other; the first push rod (8) is movably connected in a box body (10), one end, far away from a rack plate (7), of the first push rod (8) is connected with a push plate (12), the push plate (12) is movably connected in the box body (10), two sides of the upper inner wall and the lower inner wall of the box body (10) are respectively provided with an inclined plane (17) and a protrusion (18), the push plate (12) comprises a shell (121) and an inner plate (122), the shell (121) is movably connected to the outer wall of the first push rod (8), the inner plate (122) is slidably connected to the inner wall of the shell (121), and an elastic element (123) is connected between the inner wall of the shell (121) and the bottom wall of the inner plate (122); the inner wall of the tube body (11) is connected with a piston (13) in a sliding mode, the outer wall of the piston (13) is connected with a second push rod (14), one end, far away from the piston (13), of the second push rod (14) penetrates through the tube body (11) and is connected with a fixing ring (15), the inner wall of the fixing ring (15) is connected with a rotating rod (16) in a rotating mode, and one end, far away from the fixing ring (15), of the rotating rod (16) is connected to the bottom wall of a third connecting rod (503) in a rotating mode; the inner wall of the pipe body (11) is connected with two guide rods (19), and the piston (13) is connected to the outer walls of the guide rods (19) in a sliding manner; base (1) outer wall connection has fixed plate (20), fixed plate (20) outer wall connection has dead lever (21), dead lever (21) outer wall rotates and is connected with gyro wheel (22), rack plate (7) outer wall chisel have with gyro wheel (22) matched with first spout (701).

2. The building sealant fatigue resistance testing device according to claim 1, wherein the outer wall of the base (1) is connected with a guide rail (23), and the bottom wall of the movable seat (2) is provided with a second sliding groove (24) matched with the guide rail (23).

3. The building sealant fatigue resistance testing device according to claim 1, wherein the clamping position comprises two clamping plates (25), the two clamping plates (25) are respectively connected to inner walls of two sides of the first adjusting plate (3), a threaded hole (26) is formed in the outer wall of the first adjusting plate (3) in a chiseled mode, a bolt (27) is movably connected to the inner wall of the threaded hole (26), and the bolt (27) is movably abutted to the clamping plates (25).

4. An operation method of a building sealant fatigue resistance testing device is characterized by comprising the following steps:

s1, when the compression function of the device needs to be used, two test workpieces are placed on clamping positions on two sides, a bolt (27) is rotated to enable the bolt (27) to be abutted against a clamping plate (25) to fix the test workpieces, a sealant is connected between the two test workpieces, then a motor (6) is controlled to operate, the output end of the motor (6) drives a first gear (103) to rotate, the first gear (103) is meshed with a rack plate (7) to enable the rack plate (7) to move rightwards, the rack plate (7) pushes a first push rod (8) to move rightwards in a box body (10), the box body (10) is communicated with a pipe body (11), air pressure between a push plate (12) and a piston (13) extrudes a piston (13) to move rightwards in the pipe body (11), the piston (13) drives a second push rod (14) to move rightwards, the second push rod (14) drives a third connecting rod (503) to rotate by taking a supporting column (5) as a circle center through a rotating rod (16), the first connecting rod (503) is pulled to further drive the second connecting rod (14) to move rightwards, the two connecting rods (501) to swing, the two connecting rods (501) to move towards the same direction, when the two test workpieces, the two test workpieces are controlled to move towards the base seat, and the two test workpieces, the two test workpieces are controlled to be used, and the two test seats (501) to be opposite, and the two test seats (6), and the two test seats are controlled to move towards the same direction, and the same direction, the force required by the fatigue resistance test of the sealant is obtained;

s2, in the process that the rack plate (7) is meshed with the first gear (103), the roller (22) slides in a first sliding groove (701) at the top of the rack plate (7);

s3, when the first push rod (8) pushes the push plate (12) to move in the box body (10), the inner plate (122) is extruded by the inclined surface (17) to act on the elastic element (123), the elastic element (123) is compressed, the inner plate (122) is retracted into the shell (121), the shell (121) is extruded by the protrusion (18) to swing up and down in a reciprocating mode on the outer side of the first push rod (8), further the pushing force on the piston (13) is changed frequently, and the force acting on the third connecting rod (503) by the second push rod (14) is changed.