CN215339225U

CN215339225U - Universal testing machine clamp for building sealing material tensile test

Info

Publication number: CN215339225U
Application number: CN202121833679.4U
Authority: CN
Inventors: 蔡饶; 高崇亮; 曹亚军; 程超; 高杰; 高勇勇
Original assignee: China Construction Shenzhen Decoration Co Ltd
Current assignee: China Construction Shenzhen Decoration Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-12-28
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a universal testing machine clamp for a building sealing material tensile experiment, which comprises a base, a connecting device, a sliding rail device, a bidirectional screw rod, a screw rod fixing device, a first moving block and a second moving block, wherein the connecting device is arranged on the base; one end of the connecting device is connected with one end of the base, and the other end of the connecting device is used for connecting the universal testing machine; the other end of the base is connected with the sliding rail device; the screw rod fixing device is arranged on the base at one side of the slide rail device; the bidirectional screw rod can be rotatably arranged on the screw rod fixing device; the first moving block and the second moving block are arranged oppositely; the first moving block is movably arranged at one end of the bidirectional screw rod, which penetrates out of the screw rod fixing device, in a threaded connection mode and is also in sliding connection with the sliding rail device; the second moving block is movably arranged at the other end of the bidirectional screw rod penetrating out of the screw rod fixing device in a threaded connection mode and is also connected with the sliding rail device in a sliding mode. The utility model realizes the tensile test of the H-shaped test pieces with different sizes on the same clamp, and has wider application range and strong universality.

Description

Universal testing machine clamp for building sealing material tensile test

Technical Field

The utility model relates to the field of building sealing material detection, in particular to a universal tester clamp for a building sealing material tensile test.

Background

The building sealing material mainly comprises a silicone structural sealant (hereinafter referred to as structural adhesive) for buildings, silicone and a modified silicone building sealant (hereinafter referred to as sealant), the structural adhesive is widely applied to the bonding of hollow glass sheets and glass plates and metal frames of building curtain walls, and the sealant is mainly used for sealing joints between curtain walls. At present, a universal testing machine and a matched clamp are mainly used for evaluating the mechanical property of a building sealing material to carry out a tensile test on an H-shaped test piece formed by bonding two substrates and the sealing material, the preparation and tensile test method of the H-shaped test piece of the structural adhesive and the sealing adhesive are respectively specified by 'silicone structural sealing adhesive for building' GB16776-2005 'and' silicone and modified silicone building sealing adhesive 'GB/T14683-2017', wherein the bonding width of the H-shaped test piece of the structural adhesive is 12mm, the bonding width of the H-shaped test piece of the sealing adhesive is 50mm, but the size of the existing clamp is fixed, only one of the H-shaped test piece of the structural adhesive or the H-shaped test piece of the sealing adhesive can not meet the requirement of carrying out the tensile test on the H-shaped test pieces with different sizes, so that the H-shaped test pieces with different sizes need to be replaced by clamps with corresponding sizes, the same clamp can not be used for sequentially carrying out the H-shaped test piece tensile test with different sizes, the application range of the clamp is small, and the universality is poor.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a universal tester clamp for a building sealing material tensile test.

The technical scheme of the utility model is as follows:

a universal tester clamp for a tensile test of a building sealing material is applied to a tensile test scene of an H-shaped test piece and comprises a base, a connecting device, a slide rail device, a bidirectional screw rod, a screw rod fixing device, a first moving block and a second moving block; one end of the connecting device is connected with one end of the base, and the other end of the connecting device is used for connecting a universal testing machine; the other end of the base is connected with the slide rail device, the lead screw fixing device is arranged on the base at one side of the slide rail device, the bidirectional lead screw can be rotatably arranged on the lead screw fixing device around the axis of the bidirectional lead screw, and two ends of the bidirectional lead screw respectively penetrate out of the lead screw fixing device; the first moving block and the second moving block are arranged oppositely, the first moving block is movably arranged at one end, penetrating out of the lead screw fixing device, of the bidirectional lead screw in a threaded connection mode, and is also connected with the slide rail device in a sliding mode, the second moving block is movably arranged at the other end, penetrating out of the lead screw fixing device, of the bidirectional lead screw in a threaded connection mode, and is also connected with the slide rail device in a sliding mode; when the bidirectional screw rod is used, the first moving block and the second moving block are close to or far away from each other by rotating the bidirectional screw rod, so that the H-shaped test piece is clamped and fixed or loosened.

Further, the clamp also comprises a handle; the bidirectional screw rod is provided with a handle mounting hole on one side of the first moving block, which is far away from the second moving block, the handle is arranged in the handle mounting hole, two ends of the handle penetrate out of the handle mounting hole respectively, and the handle is used for controlling the rotation of the bidirectional screw rod.

Further, the connecting device comprises a first connecting seat, a second connecting seat, a connecting block, a first plug-in unit, a second plug-in unit, a third plug-in unit and a fourth plug-in unit; the base is provided with a first connecting hole matched with the second connecting seat, and the side edge of the base is also provided with a second connecting hole communicated with the first connecting hole; the one end of second connecting seat can be dismantled and set up in the first connecting hole, the fourth plug-in components inserts the second connecting hole is worn out the second connecting block is inserted and is established the second connecting seat inserts on the one end in the first connecting hole, the other end of second connecting seat with the one end of connecting block is passed through the third plug-in components is connected with the mode of rotating the connection, the other end of connecting block with the one end of first connecting seat is passed through the second plug-in components is connected with the mode of rotating the connection, the mode that first plug-in components is connected through the plug can be dismantled the setting and be in on the other end of first connecting seat, first plug-in components be used for with first connecting seat with universal testing machine links to each other.

Furthermore, the slide rail device comprises a first slide rail, a second slide rail, a plurality of first fixing pieces matched with the first slide rail and a plurality of second fixing pieces matched with the second slide rail; the first slide rail is provided with first fixing holes matched with the first fixing pieces in number, each first fixing hole is internally provided with one first fixing piece, and the first slide rail is arranged on the base through the first fixing pieces below the first connecting hole; the second slide rail is provided with a plurality of second fixing holes matched with the number of the second fixing pieces, each second fixing hole is internally provided with one second fixing piece, and the second slide rail is arranged on the base through a plurality of second fixing pieces on one side of the first slide rail.

Furthermore, the screw rod fixing device comprises a screw rod fixing seat, a screw rod buckle cover, a plurality of third fixing pieces and a plurality of fourth fixing pieces; third fixing holes matched with the third fixing pieces in number are formed in the screw rod fixing seat, and each third fixing hole is internally provided with one third fixing piece; the first slide rail, the screw rod fixing seat and the second slide rail are sequentially arranged, and the screw rod fixing seat is fixedly arranged on the base through a plurality of third fixing parts; the bidirectional screw rod is provided with a circle of groove, and the bidirectional screw rod is clamped on the screw rod fixing seat in a rotary connection mode through the groove; the screw rod buckle cover is provided with a plurality of fourth fixing holes matched with the number of the fourth fixing pieces, each fourth fixing hole is internally provided with one fourth fixing piece, and the screw rod buckle cover is arranged below the bidirectional screw rod through a plurality of fourth fixing pieces on the screw rod fixing seat.

Furthermore, a first thread is arranged on one side of the groove of the bidirectional screw rod, and a second thread with the opposite rotation direction to the first thread is arranged on the other side of the groove of the bidirectional screw rod; a first threaded hole matched with the first thread is formed in the first moving block, a first sliding groove is further formed in the first moving block above the first threaded hole, the first moving block is in threaded connection with the bidirectional lead screw through the first threaded hole and the first thread, and the first moving block is in sliding connection with the first sliding rail through the first sliding groove; the second moving block is provided with a second threaded hole matched with the second threads, a second sliding groove is further formed in the second moving block above the second threaded hole, the second moving block is in threaded connection with the bidirectional lead screw through the second threaded hole and the second threads, and the second moving block is in sliding connection with the second sliding rail through the second sliding groove.

Furthermore, the first plug-in components are pins, and the second plug-in components, the third plug-in components and the fourth plug-in components are all pin shafts.

Further, the first fixing piece and the second fixing piece are both bolts.

Further, the third fixing piece and the fourth fixing piece are both bolts.

Further, the first sliding groove and the second sliding groove are both trapezoidal grooves.

By adopting the scheme, the utility model has the following beneficial effects:

1. the design of the utility model provides the clamp with adjustable size, the H-shaped test pieces with different sizes are tested without replacing the clamp, the H-shaped test piece tensile test with different sizes is carried out on the same clamp, the clamp has wider application range and strong universality, and the user experience is improved;

2. the design of the connecting device in the preferred scheme forms a universal joint mechanism, so that the H-shaped test piece is conveniently and tightly attached to the clamp when being installed;

3. the application of the bidirectional screw rod in the preferred scheme realizes that the two moving blocks are driven to mutually approach or separate through the screw rod, the design is exquisite, and the structure is more simplified;

4. the mounting mode of the bidirectional screw rod in the preferred scheme realizes that the bidirectional screw rod is prevented from rotating around the axis of the bidirectional screw rod while the movement of the bidirectional screw rod is limited.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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

FIG. 2 is a schematic view of the connector of the present invention with the fourth insert removed;

fig. 3 is a schematic structural view of a first moving block according to the present invention;

FIG. 4 is a schematic structural view of a base, a bidirectional lead screw and a lead screw fixing device according to the present invention;

FIG. 5 is a schematic view of the structure of the base and the slide rail device according to the present invention;

FIG. 6 is a schematic view of the assembly of the present invention in combination with a structural adhesive H-type test piece;

FIG. 7 is a schematic structural diagram of the H-shaped test piece of the structural adhesive in FIG. 6;

FIG. 8 is a schematic view of the assembly of the present invention in combination with a sealant H-shaped test piece;

fig. 9 is a schematic structural diagram of the sealant H-shaped test piece in fig. 8.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

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

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1 to 9, the utility model provides a universal tester clamp for a building sealing material tensile test, which is applied to an H-shaped test piece tensile test scene, wherein the H-shaped test piece comprises a structural adhesive H-shaped test piece 10 and a sealant H-shaped test piece 11, and the structural adhesive H-shaped test piece 10 and the sealant H-shaped test piece 11 have different sizes; the clamp comprises a base 1, a connecting device 2, a slide rail device 3, a bidirectional screw rod 4, a screw rod fixing device 5, a first moving block 6 and a second moving block 7, wherein one end of the connecting device 2 is connected with one end of the base 1, the other end of the connecting device 2 is used for connecting a universal testing machine, the other end of the base 1 is connected with the slide rail device 3, the screw rod fixing device 5 is arranged on the base 1 at one side of the slide rail device 3, the bidirectional screw rod 4 can be rotatably arranged on the screw rod fixing device 5 around the axis of the bidirectional screw rod 4, two ends of the bidirectional screw rod 4 respectively penetrate through the screw rod fixing device 5, one end of the bidirectional screw rod 4 penetrating through the screw rod fixing device 5 is provided with a first thread, and the other end of the bidirectional screw rod 4 penetrating through the screw rod fixing device 5 is provided with a second thread, the turning direction of the first threads is opposite to that of the second threads, the first moving block 6 is arranged opposite to the second moving block 7, the first moving block 6 is movably arranged at one end, penetrating out of the lead screw fixing device 5, of the bidirectional lead screw 4 in a threaded connection manner, the first moving block 6 is further connected with the slide rail device 3 in a sliding manner, the second moving block 7 is movably arranged at the other end, penetrating out of the lead screw fixing device 5, of the bidirectional lead screw 4 in a threaded connection manner, and the second moving block 7 is further connected with the slide rail device 3 in a sliding manner; because the two sections of threads arranged on the bidirectional screw rod 4 have opposite turning directions, in practical application, the first moving block 6 and the second moving block 7 are close to or far away from each other by rotating the bidirectional screw rod 4, so that the H-shaped test piece is clamped and fixed or loosened by the first moving block 6 and the second moving block 7, that is, when the H-shaped test piece needs to be assembled on the clamp, the H-shaped test piece is firstly placed between the first moving block 6 and the second moving block 7, then the bidirectional screw rod 4 is rotated to drive the first moving block 6 and the second moving block 7 to be close to each other until the first moving block 6 and the second moving block 7 cooperate to tightly clamp and fix the H-shaped test piece, so that the assembling work of the H-shaped test piece is completed, and when the H-shaped test piece assembled on the clamp needs to be disassembled, the bidirectional screw rod 4 is rotated reversely to drive the first moving block 6 and the second moving block 7 to be far away from each other, and taking the H-shaped test piece loosened by the first moving block 6 and the second moving block 7 until the limitation of the first moving block 6 and the second moving block 7 on the H-shaped test piece is removed, so that the disassembling work of the H-shaped test piece is completed. Further, the air conditioner is provided with a fan,

the clamp further comprises a handle 8, a handle mounting hole is formed in one side, deviating from the second moving block 7, of the first moving block 6 of the bidirectional screw rod 4, the handle 8 is detachably arranged in the handle mounting hole in a plug-in connection mode, namely, the handle 8 is arranged in the handle mounting hole, two ends of the handle 8 penetrate out of the handle mounting hole respectively, the handle 8 is used for controlling rotation of the bidirectional screw rod 4, and a user holds the handle 8 and rotates the handle 8 to drive the bidirectional screw rod 4 to rotate.

The connecting device 2 comprises a first connecting seat 21, a second connecting seat 22, a connecting block 23, a first plug-in 24, a second plug-in 25, a third plug-in 26 and a fourth plug-in 27, wherein a first connecting hole which is through and matched with the second connecting seat 22 is formed in the middle position of the base 1, a second connecting hole which is communicated with the first connecting hole is further formed in the side edge of the base 1, one end of the second connecting seat 22 is detachably arranged in the first connecting hole in a plug-in connection mode, the fourth plug-in 27 is inserted into the second connecting hole in a plug-in connection mode and penetrates out of the second connecting seat 23 to be inserted into one end of the first connecting hole of the second connecting seat 22, and the other end of the second connecting seat 22 is connected with one end of the connecting block 23 in a rotating connection mode through the third plug-in 26, the other end of the connecting block 23 is connected with one end of the first connecting seat 21 in a rotating connection mode through the second plug-in unit 25, the first plug-in unit 24 is detachably arranged at the other end of the first connecting seat 21 in a plug-in connection mode, and the first plug-in unit 24 is used for connecting the first connecting seat 21 with the universal testing machine, namely, the other end of the first connecting seat 21 is connected with the universal testing machine through the first plug-in unit 24, so that the first connecting seat 21, the second connecting seat 22, the connecting block 23, the first plug-in unit 24, the second plug-in unit 25 and the third plug-in unit 26 form a universal joint mechanism together, and the universal joint mechanism is conveniently and tightly attached to a clamp when an H-shaped test piece is installed; specifically, the first plug-in components 24 are pins, and the second plug-in components 25, the third plug-in components 26, and the fourth plug-in components 27 are all pins.

The slide rail device 3 comprises a first slide rail 31, a second slide rail 32, a plurality of first fixing parts 33 used for matching with the first slide rail 31 and a plurality of second fixing parts 34 used for matching with the second slide rail 32, the first slide rail 31 is provided with a plurality of first fixing holes matching with the number of the first fixing pieces 33, each first fixing hole is provided with one first fixing piece 33, the first slide rail 31 is disposed on the base 1 below the first connecting hole through a plurality of first fixing members 33, correspondingly, the second slide rail 32 is provided with second fixing holes matching with the number of the second fixing pieces 34, each second fixing hole is provided with one second fixing piece 34, the second slide rail 32 is disposed on the base 1 through a plurality of second fixing members 34 at one side of the first slide rail 31; specifically, the first fixing member 33 and the second fixing member 34 are both bolts.

The lead screw fixing device 5 comprises a lead screw fixing seat 51, a lead screw buckle cover 52, a plurality of third fixing parts 53 and a plurality of fourth fixing parts 54, wherein third fixing holes matched with the number of the third fixing parts 53 are formed in the lead screw fixing seat 51, one third fixing part 53 is arranged in each third fixing hole, the lead screw fixing seat 51 is arranged on the base 1 between the first slide rail 31 and the second slide rail 32 through the plurality of third fixing parts 53, namely, the first slide rail 31, the lead screw fixing seat 51 and the second slide rail 32 are sequentially configured, the lead screw fixing seat 51 is fixedly arranged on the base 1 through the plurality of third fixing parts 53, a circle of groove is formed in the bidirectional lead screw 4, and the bidirectional lead screw 4 is connected to the lead screw fixing seat 51 in a rotating manner through the groove, the screw rod buckle cover 52 is provided with fourth fixing holes matched with the fourth fixing pieces 54 in number, each fourth fixing hole is internally provided with one fourth fixing piece 54, the screw rod buckle cover 52 is arranged on the screw rod fixing seat 51 below the bidirectional screw rod 4 through the fourth fixing pieces 54, so that the bidirectional screw rod 4 is installed and fixed through the screw rod fixing seat 51 and the screw rod buckle cover 52 together, and the bidirectional screw rod 4 is allowed to rotate around a rotating shaft of the bidirectional screw rod 4 while the transverse movement of the bidirectional screw rod 4 is limited; specifically, the third fixing member 53 and the fourth fixing member 54 are both bolts.

The bidirectional screw rod 4 is provided with the first threads on one side of the groove, the bidirectional screw rod 4 is provided with the second threads on the other side of the groove, and the bidirectional screw rod 4 is further provided with the handle mounting hole on one side of the first threads far away from the second threads.

The first moving block 6 and the second moving block 7 have the same structure, and are different only in installation position and installation direction; a first threaded hole 61 matched with the first thread is formed in the first moving block 6, a first sliding groove 62 is further formed in the first moving block 6 above the first threaded hole 61, the first moving block 6 is in threaded connection with the bidirectional lead screw 4 through the first threaded hole 61 and the first thread, the first moving block 6 is in sliding connection with the first sliding rail 31 through the first sliding groove 62, correspondingly, a second threaded hole matched with the second thread is formed in the second moving block 7, a second sliding groove is further formed in the second moving block 7 above the second threaded hole, the second moving block 7 is in threaded connection with the bidirectional lead screw 4 through the second threaded hole and the second thread, and the second moving block 7 is in sliding connection with the second sliding rail 32 through the second sliding groove; specifically, the first slide rail 31 and the second slide rail 32 are both trapezoidal slide rails with trapezoidal cross sections, and correspondingly, the first slide groove 62 and the second slide groove are both trapezoidal grooves.

The working process and principle of the utility model are as follows: the two clamps are needed during actual use, the two clamps are respectively installed at the upper end and the lower end of a universal testing machine through the first plug-in units 24, the distance between the two clamps is adjusted through the universal testing machine according to the size of the H-shaped test piece, then the bidirectional lead screw 4 is controlled by the handle 8 to rotate so as to simultaneously drive the first moving block 6 and the second moving block 7 to move, and after the two clamps are respectively adjusted, the H-shaped test piece can be installed for tensile test.

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

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal tester clamp for a tensile test of a building sealing material is applied to a tensile test scene of an H-shaped test piece and is characterized by comprising a base, a connecting device, a slide rail device, a bidirectional screw rod, a screw rod fixing device, a first moving block and a second moving block; one end of the connecting device is connected with one end of the base, and the other end of the connecting device is used for connecting a universal testing machine; the other end of the base is connected with the slide rail device, the lead screw fixing device is arranged on the base at one side of the slide rail device, the bidirectional lead screw can be rotatably arranged on the lead screw fixing device around the axis of the bidirectional lead screw, and two ends of the bidirectional lead screw respectively penetrate out of the lead screw fixing device; the first moving block and the second moving block are arranged oppositely, the first moving block is movably arranged at one end, penetrating out of the lead screw fixing device, of the bidirectional lead screw in a threaded connection mode, and is also connected with the slide rail device in a sliding mode, the second moving block is movably arranged at the other end, penetrating out of the lead screw fixing device, of the bidirectional lead screw in a threaded connection mode, and is also connected with the slide rail device in a sliding mode; when the bidirectional screw rod is used, the first moving block and the second moving block are close to or far away from each other by rotating the bidirectional screw rod, so that the H-shaped test piece is clamped and fixed or loosened.

2. The universal tester jig for tensile testing of construction sealant according to claim 1 further comprising a handle; the bidirectional screw rod is provided with a handle mounting hole on one side of the first moving block, which is far away from the second moving block, the handle is arranged in the handle mounting hole, two ends of the handle penetrate out of the handle mounting hole respectively, and the handle is used for controlling the rotation of the bidirectional screw rod.

3. The universal tester fixture for building sealing material tensile tests according to claim 1, wherein said connecting means comprises a first connecting seat, a second connecting seat, a connecting block, a first plug-in unit, a second plug-in unit, a third plug-in unit and a fourth plug-in unit; the base is provided with a first connecting hole matched with the second connecting seat, and the side edge of the base is also provided with a second connecting hole communicated with the first connecting hole; the one end of second connecting seat can be dismantled and set up in the first connecting hole, the fourth plug-in components inserts the second connecting hole is worn out the second connecting hole is inserted and is established the second connecting seat inserts on the one end in the first connecting hole, the other end of second connecting seat with the one end of connecting block is passed through the third plug-in components is connected with the mode of rotating the connection, the other end of connecting block with the one end of first connecting seat is passed through the second plug-in components is connected with the mode of rotating the connection, the mode that first plug-in components is connected through the plug can be dismantled the setting and be in on the other end of first connecting seat, first plug-in components be used for with first connecting seat with universal testing machine links to each other.

4. The universal tester fixture for building sealing material tensile tests according to claim 3, wherein said rail means comprises a first rail, a second rail, a plurality of first fasteners for engaging said first rail, and a plurality of second fasteners for engaging said second rail; the first slide rail is provided with first fixing holes matched with the first fixing pieces in number, each first fixing hole is internally provided with one first fixing piece, and the first slide rail is arranged on the base through the first fixing pieces below the first connecting hole; the second slide rail is provided with a plurality of second fixing holes matched with the number of the second fixing pieces, each second fixing hole is internally provided with one second fixing piece, and the second slide rail is arranged on the base through a plurality of second fixing pieces on one side of the first slide rail.

5. The universal tester clamp for building sealing material tensile test of claim 4, wherein the lead screw fixing device comprises a lead screw fixing seat, a lead screw buckle cover, a plurality of third fixing pieces and a plurality of fourth fixing pieces; third fixing holes matched with the third fixing pieces in number are formed in the screw rod fixing seat, and each third fixing hole is internally provided with one third fixing piece; the first slide rail, the screw rod fixing seat and the second slide rail are sequentially arranged, and the screw rod fixing seat is fixedly arranged on the base through a plurality of third fixing parts; the bidirectional screw rod is provided with a circle of groove, and the bidirectional screw rod is clamped on the screw rod fixing seat in a rotary connection mode through the groove; the screw rod buckle cover is provided with a plurality of fourth fixing holes matched with the number of the fourth fixing pieces, each fourth fixing hole is internally provided with one fourth fixing piece, and the screw rod buckle cover is arranged below the bidirectional screw rod through a plurality of fourth fixing pieces on the screw rod fixing seat.

6. The universal tester jig for tensile tests of building sealing materials according to claim 5, wherein the bidirectional screw is provided with a first thread on one side of the groove, and a second thread with a direction opposite to that of the first thread on the other side of the groove; a first threaded hole matched with the first thread is formed in the first moving block, a first sliding groove is further formed in the first moving block above the first threaded hole, the first moving block is in threaded connection with the bidirectional lead screw through the first threaded hole and the first thread, and the first moving block is in sliding connection with the first sliding rail through the first sliding groove; the second moving block is provided with a second threaded hole matched with the second threads, a second sliding groove is further formed in the second moving block above the second threaded hole, the second moving block is in threaded connection with the bidirectional lead screw through the second threaded hole and the second threads, and the second moving block is in sliding connection with the second sliding rail through the second sliding groove.

7. The universal tester jig for building sealing material tensile tests according to claim 3, wherein the first insert is a pin, and the second insert, the third insert and the fourth insert are all pin shafts.

8. The universal tester jig for building sealing material tensile tests according to claim 4, wherein the first fixing member and the second fixing member are both bolts.

9. The universal tester jig for building sealing material tensile tests according to claim 5, wherein the third fixing member and the fourth fixing member are both bolts.

10. The universal tester fixture for building sealing material tensile tests according to claim 6, wherein said first and second slide rails are trapezoidal slide rails, and correspondingly, said first and second slide grooves are trapezoidal grooves.