A shear force testing device for door and window profiles

Abstract

The present invention relates to the technical field of shear force testing of door and window profiles, and specifically to a shear force testing device for door and window profiles, comprising a clamping mechanism, a bottom plate and a side support portion, wherein the clamping mechanism is fixedly mounted on the bottom plate, and the side support portion can be mounted on the bottom plate in a horizontally sliding and adjustable manner, the clamping mechanism is used to clamp an aluminum profile and a plastic profile, and the side support portion is used to fit another aluminum profile, and the side support portion is provided with a plurality of rotatable wheels, and the outer edges of the wheels fit the aluminum profile, and the shear force testing device for door and window profiles can perform a shear force test between an aluminum profile and a plastic profile, and during the test process, the side of the aluminum profile can be supported, and the process of fitting with the side thereof is rapid and simple. It is also possible to perform a shear force test between a plastic profile and two aluminum profiles by supporting the bottom of the aluminum profile.

Description

Technical Field

[0001] The invention relates to the technical field of shear force testing of door and window profiles, and in particular to a shear force testing device for door and window profiles. Background Art

[0002] When performing a shear force test, the two workpieces are generally pulled up and down for vertical movement. After the two are separated, the pulling force required for separation is determined, and this pulling force is the shear force. However, this method can only test all the shear forces when the two workpieces are separated, and when the three workpieces are connected, the shear force required for the middle workpiece cannot be tested. In addition, the two workpieces need to be made of hard materials to avoid deformation of the workpieces when pulling. If the test is performed by reinforcing the easily deformed workpieces, the test results will be inaccurate, making the entire test process unobjectionable. Door and window profiles generally use two aluminum profiles to clamp a plastic profile. This results in the inability to use the traditional pulling method when performing a shear force test between an aluminum profile and a plastic profile because the plastic profile is a soft structure. And when performing a shear force test between a plastic profile and two aluminum profiles, the traditional pulling method cannot be used because there are three workpieces.

[0003] Therefore, it is necessary to design a door and window profile shear force testing device that can perform shear force testing between an aluminum profile and a plastic profile, and can also perform shear force testing between a plastic profile and two aluminum profiles. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a door and window profile shear force testing device, which can perform shear force testing between an aluminum profile and a plastic profile, and can also perform shear force testing between a plastic profile and two aluminum profiles.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the present invention provides a shear force testing device for door and window profiles, comprising a clamping mechanism, a base plate and a side support portion, wherein the clamping mechanism is fixedly installed on the base plate, and the side support portion can be horizontally slidably adjusted and installed on the base plate, the clamping mechanism is used to clamp an aluminum profile and a plastic profile, and the side support portion is used to bond another aluminum profile, and a plurality of rotatable wheels are arranged on the side support portion, and the outer edges of the wheels are bonded to the aluminum profile.

[0006] Preferably, it also includes two bottom support mechanisms, the two bottom support mechanisms can be installed on the bottom plate along the transverse sliding direction, the two bottom support mechanisms are respectively located on the longitudinal sides of the aluminum profile, each bottom support mechanism includes a rotating plate, a sliding plate, a transverse sliding seat, a longitudinal sliding seat and a vertical plate, the transverse sliding seat can be installed on the bottom plate for transverse sliding, the longitudinal sliding seat can be installed on the top of the transverse sliding seat for longitudinal sliding, the bottom of the rotating plate is hinged to the top of the longitudinal sliding seat, the sliding plate can be installed on the rotating plate for horizontal sliding, the vertical plate is fixedly installed on the longitudinal sliding seat, and the rotating plate is detachably connected to the vertical plate. When it is necessary to perform a shear force test between the plastic profile and the two aluminum profiles, the sliding plate contacts the top of the longitudinal sliding seat, and the top of the rotating plate is flush with the bottom of the aluminum profile. When it is necessary to perform a shear force test between an aluminum profile and the plastic profile, the longitudinal sliding seat is selected to be fitted and fixed with the vertical plate, the sliding plate fits with the side of the aluminum profile, and a locking mechanism is provided on the vertical plate, and the locking mechanism is detachably connected to the side support part.

[0007] Preferably, the locking mechanism includes a rotating rod, a rotating wheel and an elastic pushing mechanism. A rotating seat is provided on the top of the vertical plate. The rotating rod is rotatably installed on the rotating seat. The rotating wheel is rotatably connected to one end of the rotating rod. The elastic pushing mechanism is fixedly installed on the vertical plate. The elastic pushing mechanism is used to apply an elastic force to the vertical plate close to the side support part. The contact surfaces between the vertical plate and the side support part are both rough structures.

[0008] Preferably, a hook plate is provided on the top of the skateboard, and when the rotating wheel is in contact with the side support portion, the hook plate contacts the top of the rotating wheel, and when the rotating rod rotates to be perpendicular to the skateboard, the hook plate separates from the rotating wheel.

[0009] Preferably, the elastic pushing mechanism includes a resistance spring, a guide column and a locking nut. A strip sliding hole is opened on the clamping mechanism, the guide column is inserted into the strip sliding hole, one end of the guide column is fixedly connected to the vertical plate, the resistance spring is sleeved on the guide column, and the locking nut engages with the end of the guide column.

[0010] Preferably, a strong magnet is fixedly provided on the vertical plate, and the strong magnet can be attracted and connected with the rotating plate.

[0011] Preferably, the clamping mechanism includes a pressure plate, a pad, a locking screw, a support block and two support plates. The support block and the two support plates are fixedly installed on the base plate. The support block is located in the middle of the two support plates. The pressure plate is fixedly installed on the top of the two support plates. The top of the support block is flush with the top of the longitudinal sliding seat in a horizontal state, so that the support block and the longitudinal sliding seat can horizontally support the two aluminum profiles. The pad is pressed on the top of the aluminum profile, and the locking screw is engaged and installed on the pressure plate, and the bottom of the locking screw is in contact with the top of the pad.

[0012] Preferably, the side support part includes a slide seat, a slide rail, a screw hole and a screw. The screw hole is fixedly installed on the base plate. The slide seat is slidably connected to the slide rail. The slide rail is provided with multiple screw holes. The screws pass through the slide seat and are meshed with the screw holes. Multiple rotating wheels are rotatably installed on the top of the slide seat.

[0013] Preferably, a clamping strip is fixedly provided on the top of the bottom plate, a groove engaged with the clamping strip is provided on the bottom of the transverse sliding seat, a shaped block is fixedly provided on the top of the transverse sliding seat, and a trapezoidal groove cooperating with the shaped block is provided on the bottom of the longitudinal sliding seat.

[0014] The beneficial effects of the present invention are as follows: the door and window profile shear force testing device can perform a shear force test between an aluminum profile and a plastic profile, and during the test, the side of the aluminum profile can be supported, and the process of laminating with the side of the aluminum profile is quick and simple. It can also perform a shear force test between a plastic profile and two aluminum profiles by supporting the bottom of the aluminum profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the workpiece to be inspected.

[0018] Figure 3 It is the main view of the aluminum profile in the pressed down state.

[0019] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure from another perspective.

[0020] Figure 5 It is the front view of the plastic profile in the pressed state.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the hook plate and the rotating wheel in the connected state.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the bottom support mechanism.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping mechanism.

[0024] Fig. 9It is a schematic diagram of the partial three-dimensional structure decomposition of the bottom support mechanism.

[0025] Explanation of the accompanying drawings: 1. Clamping mechanism; 1a. Support plate; 1b. Pressure plate; 1c. Pad; 1d. Locking screw; 1e. Support block; 2. Bottom plate; 3. Side support part; 3a. Rotating wheel; 3b. Sliding seat; 3c. Sliding rail; 3d. Screw hole; 3e. Screw; 4. Aluminum profile; 5. Plastic profile; 6. Bottom support mechanism; 6a. Rotating plate; 6b. Slide plate; 6c. Horizontal sliding seat; 6d. Longitudinal sliding seat; 6e. Vertical plate; 6f. Hook plate; 6h. Strong magnet; 6x. Card strip; 7. Locking mechanism; 7a. Rotating rod; 7b. Rotating wheel; 7c. Elastic pushing mechanism; 7c1. Resistance spring; 7c2. Guide column; 7c3. Locking nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment: The present invention provides a door and window profile shear force testing device, such as Figure 1-9 As shown, it includes a clamping mechanism 1, a bottom plate 2 and a side support part 3. The clamping mechanism 1 is fixedly installed on the bottom plate 2, and the side support part 3 can be installed on the bottom plate 2 in a horizontally sliding manner. When testing door and window profiles, a plastic profile 5 is connected between two aluminum profiles 4 to test the shear force. When it is necessary to perform a shear force test between an aluminum profile and a plastic profile, the clamping mechanism 1 is used to clamp an aluminum profile 4 and a plastic profile 5, and the side support part 3 is used to fit another aluminum profile 4. A plurality of rotatable wheels 3a are provided on the side support part 3, and the outer edges of the wheels 3a fit with the aluminum profile 4. At this time, a press is used to press along the direction as shown in FIG. Figure 3 The aluminum profile 4 is pressed in the direction of the arrow shown. When the connection between the aluminum profile 4 and the plastic profile 5 is subjected to the ultimate thrust, the plastic profile 5 and the aluminum profile 4 will separate. That is, the thrust displayed on the press at this time is the shear force between the two. When the shear force is exceeded, the aluminum profile 4 and the plastic profile 5 can be separated. In order to prevent the aluminum profile 4 from being subjected to the friction force of the side support part 3, the rotating wheel 3a is used to resist so that the rotating wheel 3a will roll when the aluminum profile 4 moves to avoid affecting the test value.

[0028] In the above scheme, although the shear force test between an aluminum profile and a plastic profile can be performed, if the aluminum profile 4 is pushed and tilted during the test, this will cause the plastic profile 5 to bend, resulting in test failure. In addition, although the above scheme can also detect the shear force between the plastic profile 5 and the aluminum profile 4, it is difficult to test the shear force between the plastic profile and two aluminum profiles because the bottom of the aluminum profile 4 has no support, so when the plastic profile 5 is pushed downward, the plastic profile 5 will drive the aluminum profile 4 that is not clamped to move downward. For this reason, two bottom support mechanisms 6 are also included. Both bottom support mechanisms 6 can be installed on the bottom plate 2 in a lateral sliding manner. The two bottom support mechanisms 6 are respectively located on the longitudinal sides of the aluminum profile 4. The lateral support mechanisms 6 are respectively located on the longitudinal sides of the aluminum profile 4. The longitudinal direction is the length direction of the bottom plate 2, and the longitudinal direction is the width direction of the bottom plate 2. Each bottom support mechanism 6 includes a rotating plate 6a, a sliding plate 6b, a transverse sliding seat 6c, a longitudinal sliding seat 6d and a vertical plate 6e. The transverse sliding seat 6c can be installed on the bottom plate 2 in a transverse sliding manner, and the longitudinal sliding seat 6d can be installed on the top of the transverse sliding seat 6c in a longitudinal sliding manner. The bottom of the rotating plate 6a is hinged to the top of the longitudinal sliding seat 6d. The sliding plate 6b can be installed on the rotating plate 6a in a horizontally slidable manner. The vertical plate 6e is fixedly installed on the longitudinal sliding seat 6d. The rotating plate 6a and the vertical plate 6e are detachably connected;

[0029] like Figure 4 As shown, when it is necessary to perform a shear force test between the plastic profile and the two aluminum profiles, the slide plate 6b contacts the top of the longitudinal sliding seat 6d, and the top of the rotating plate 6a is flush with the bottom of the aluminum profile 4. At this time, the rotating plate 6a can be pushed into the bottom of the aluminum profile 4 to support the aluminum profile 4. Then, the plastic profile 5 can be pushed downward by the press, so that the plastic profile 5 is pushed downward, and the two aluminum profiles 4 cannot move, that is, the shear force test between the plastic profile and the two aluminum profiles is achieved.

[0030] like Figure 5 As shown, when a shear force test is required between an aluminum profile and a plastic profile, the longitudinal sliding seat 6d is selected to fit and fix with the vertical plate 6e, the slide plate 6b fits with the side of the aluminum profile 4, and then the aluminum profile 4 is pressed downward by a press. Due to the limiting effect of the slide plate 6b, the aluminum profile 4 will not be pushed to tilt. And in the process of the aluminum profile 4 being pushed downward, the slide plate 6b can slide down to avoid friction between the slide plate 6b and the aluminum profile 4. And when the slide plate 6b fits with the aluminum profile 4, the longitudinal sliding seat 6d will be inserted into the bottom of the aluminum profile 4, but there is a gap between the longitudinal sliding seat 6d and the aluminum profile 4, which will not affect the experiment.

[0031] However, when the slide plate 6b supports the aluminum profile 4, the longitudinal sliding seat 6d and the transverse sliding seat 6c cannot slide, otherwise they will not be able to play a supporting role. For this reason, a locking mechanism 7 is provided on the vertical plate 6e, and the locking mechanism 7 is detachably connected to the side support part 3. When the vertical plate 6e is fixedly connected to the side support part 3, the longitudinal sliding seat 6d and the transverse sliding seat 6c cannot slide.

[0032] The traditional connection method will cause the vertical plate 6e to take a long time to fix with the side support part 3, and it is difficult to ensure that the slide plate 6b fits with the aluminum profile 4 during the fixation. Therefore, the locking mechanism 7 includes a rotating rod 7a, a rotating wheel 7b and an elastic pushing mechanism 7c. A rotating seat is provided at the top of the vertical plate 6e, and the rotating rod 7a is rotatably installed on the rotating seat. The rotating wheel 7b is rotatably connected with one end of the rotating rod 7a. The elastic pushing mechanism 7c is fixedly installed on the vertical plate 6e. The elastic pushing mechanism 7c is used to apply an elastic force to the vertical plate 6e close to the side support part 3. The contact surfaces of the vertical plate 6e and the side support part 3 are both rough structures. The vertical plate 6e and the side support part 3 can be fixed by pushing the elastic pushing mechanism 7c to fit with the side support part 3. When the longitudinal sliding seat 6d needs to slide longitudinally, the rotating rod 7a is pushed to make the rotating wheel 7b contact with the side support part 3, so that the vertical plate 6e and the side support part 3 are separated. At this time, the rotating rod 7a can be pushed horizontally to make the sliding plate 6b fit with the side of the aluminum profile 4. The whole process is simple and labor-saving, and it can save time while ensuring that the sliding plate 6b fits with the aluminum profile 4.

[0033] Since the slide plate 6b can have a margin to slide downward when the slide plate 6b is in contact with the aluminum profile 4, but if no structure is provided, the slide plate 6b will slide downward to the bottom by gravity. For this reason, a hook plate 6f is provided on the top of the slide plate 6b. When the rotating wheel 7b is in contact with the side support part 3, the hook plate 6f contacts the top of the rotating wheel 7b. When the rotating rod 7a rotates to be perpendicular to the slide plate 6b, the hook plate 6f separates from the rotating wheel 7b. That is, in the process of pushing the slide plate 6b to move horizontally, the slide plate 6b is in a state of being supported by the rotating wheel 7b, so that the slide plate 6b will not slide down. After the slide plate 6b contacts the aluminum profile 4, the rotating wheel 7b is rotated to separate from the hook plate 6f, so that the slide plate 6b can be driven to slide down in the subsequent process of the aluminum profile 4 sliding down.

[0034] The elastic pushing mechanism 7c includes a resistance spring 7c1, a guide column 7c2 and a locking nut 7c3. A strip-shaped sliding hole is provided on the clamping mechanism 1. The guide column 7c2 is inserted into the strip-shaped sliding hole. One end of the guide column 7c2 is fixedly connected to the vertical plate 6e. The resistance spring 7c1 is sleeved on the guide column 7c2. The locking nut 7c3 is engaged with the end of the guide column 7c2. The elastic force of the guide column 7c2 is used to push the vertical plate 6e and the side support part 3 to frictionally resist each other. When the side support part 3 moves horizontally close to the vertical plate 6e, the resistance spring 7c1 can be compressed. The locking nut 7c3 prevents the guide column 7c2 from sliding out of the clamping mechanism 1.

[0035] A strong magnet 6h is fixedly arranged on the vertical plate 6e, and the strong magnet 6h can be attracted and connected with the rotating plate 6a. By rotating the rotating plate 6a and attracting the strong magnet 6h, the rotating plate 6a can be fixed.

[0036] The clamping mechanism 1 includes a pressing plate 1b, a cushion block 1c, a locking screw 1d, a support block 1e and two support plates 1a. The support block 1e and the two support plates 1a are fixedly installed on the bottom plate 2. The support block 1e is located in the middle of the two support plates 1a. The pressing plate 1b is fixedly installed on the top of the two support plates 1a. The top of the support block 1e is flush with the top of the longitudinal sliding seat 6d in a horizontal state, so that the support block 1e and the longitudinal sliding seat 6d can horizontally support the two aluminum profiles 4. The cushion block 1c is pressed on the top of the aluminum profile 4. The locking screw 1d is engaged and installed on the pressing plate 1b, and the bottom of the locking screw 1d is in contact with the top of the cushion block 1c. The aluminum profile 4 is clamped by the cushion block 1c and the support block 1e, that is, the aluminum profile 4 is fixed. When the height of the aluminum profile 4 changes, the thickness of the plastic profile 5 can be changed. Among them, the strip slide groove for the guide column 7c2 to slide is opened on the support plate 1a.

[0037] The side support part 3 includes a slide 3b, a slide rail 3c, a screw hole 3d and a screw 3e. The screw hole 3d is fixedly installed on the bottom plate 2. The slide 3b is slidably connected to the slide rail 3c. The slide rail 3c is provided with a plurality of screw holes. The screw 3e passes through the slide 3b and is engaged with the screw hole. A plurality of rotating wheels 3a are rotatably installed on the top of the slide 3b. The position of the slide 3b is adjusted by horizontal sliding. When the rotating wheel 3a is moved to fit the side of the aluminum profile 4, the screw 3e can be rotated to engage with the screw hole 3d, so that the slide 3b is locked. The locking is mainly achieved by squeezing the screw 3e and the slide 3b downward, so that the slide 3b generates friction with the surface of the contacted object for locking.

[0038] A clamping strip 6x is fixedly arranged on the top of the bottom plate 2, a groove is provided at the bottom of the transverse sliding seat 6c to be clamped with the clamping strip 6x, so that the transverse sliding seat 6c can slide transversely along the clamping strip 6x, a T-shaped block is fixedly arranged on the top of the transverse sliding seat 6c, and a trapezoidal groove is provided at the bottom of the longitudinal sliding seat 6d to cooperate with the T-shaped block, so that the longitudinal sliding seat 6d can slide longitudinally along the transverse sliding seat 6c. In particular, due to the cooperation between the guide column 7c2 and the strip-shaped sliding groove, the transverse sliding seat 6c will not be separated from the clamping strip 6x up and down.

[0039] When using, when a shear force test is required between an aluminum profile and a plastic profile, firstly, the aluminum profile 4 and the plastic profile 5 are clamped and supported by the clamping mechanism 1, and then the side support part 3 is pushed and adjusted to make the rotating wheel 3a fit with the aluminum profile 4. During the movement of the side support part 3, the side support part 3 will push the bottom support mechanism 6 to move, so that the conflicting spring 7c1 is pressed and locked. Then, the rotating plate 6a is rotated upward to make it attract and fix with the strong magnet 6h, and then the rotating rod 7a is bent to make the rotating wheel 7b contact with the side support part 3, and then the rotating rod 7a is pushed to make the slide plate 6b fit with the side of the aluminum profile 4. Finally, the test can be performed as shown in the following figure. Figure 3 The aluminum profile 4 is pressed down in the direction of the arrow shown.

[0040] When it is necessary to perform a shear force test between the plastic profile and two aluminum profiles, one aluminum profile 4 is clamped by the clamping mechanism 1, and the longitudinal sliding seat 6d supports the bottom of the other aluminum profile 4, so that the plastic profile 5 is in a suspended state, and the test can be performed as follows. Figure 5 The pressed plastic profile 5 is shown.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A shear force testing device for door and window profiles, characterized in that: The invention comprises a clamping mechanism (1), a bottom plate (2) and a side support portion (3), wherein the clamping mechanism (1) is fixedly mounted on the bottom plate (2), and the side support portion (3) is mounted on the bottom plate (2) in a manner that allows horizontal sliding adjustment, the clamping mechanism (1) is used to clamp an aluminum profile (4) and a plastic profile (5), and the side support portion (3) is used to fit another aluminum profile (4), and a plurality of rotatable wheels (3a) are provided on the side support portion (3), and the outer edges of the wheels (3a) fit the aluminum profile (4); It also includes two bottom support mechanisms (6), both of which can be installed on the bottom plate (2) in a lateral sliding manner, and the two bottom support mechanisms (6) are respectively located on both sides of the aluminum profile (4) in the longitudinal direction, and each bottom support mechanism (6) includes a rotating plate (6a), a sliding plate (6b), a lateral sliding seat (6c), a longitudinal sliding seat (6d) and a vertical plate (6e), the lateral sliding seat (6c) can be installed on the bottom plate (2) in a lateral sliding manner, the longitudinal sliding seat (6d) can be installed on the top of the lateral sliding seat (6c) in a longitudinal sliding manner, the bottom of the rotating plate (6a) is hinged to the top of the longitudinal sliding seat (6d), the sliding plate (6b) can be installed on the rotating plate (6a) in a horizontal sliding manner, and the vertical plate (6e) is fixedly installed on the longitudinal sliding seat (6d), and the rotating plate (6a) and the vertical plate (6e) are detachably connected; When a shear force test is required between the plastic profile and the two aluminum profiles, the slide plate (6b) contacts the top of the longitudinal sliding seat (6d), and the top of the rotating plate (6a) is flush with the bottom of the aluminum profile (4); When a shear force test is required between an aluminum profile and a plastic profile, the longitudinal sliding seat (6d) is selected to fit and fix with the vertical plate (6e), the sliding plate (6b) fits with the side of the aluminum profile (4), and a locking mechanism (7) is provided on the vertical plate (6e), and the locking mechanism (7) is detachably connected to the side support portion (3); The locking mechanism (7) comprises a rotating rod (7a), a rotating wheel (7b) and an elastic pushing mechanism (7c); a rotating seat is provided at the top of the vertical plate (6e); the rotating rod (7a) is rotatably mounted on the rotating seat; the rotating wheel (7b) is rotatably connected to one end of the rotating rod (7a); the elastic pushing mechanism (7c) is fixedly mounted on the vertical plate (6e); the elastic pushing mechanism (7c) is used to apply an elastic force close to the side support portion (3) to the vertical plate (6e); and the contact surfaces of the vertical plate (6e) and the side support portion (3) are both rough structures.

2. A door and window profile shear force testing device as claimed in claim 1, characterized in that: A hook plate (6f) is provided on the top of the slide plate (6b); when the rotating wheel (7b) is in contact with the side support portion (3), the hook plate (6f) contacts the top of the rotating wheel (7b); when the rotating rod (7a) rotates to be perpendicular to the slide plate (6b), the hook plate (6f) separates from the rotating wheel (7b).

3. A door and window profile shear force testing device as claimed in claim 1, characterized in that: The elastic pushing mechanism (7c) comprises a resisting spring (7c1), a guide column (7c2) and a locking nut (7c3); a strip-shaped sliding hole is provided on the clamping mechanism (1); the guide column (7c2) is inserted into the strip-shaped sliding hole; one end of the guide column (7c2) is fixedly connected to the vertical plate (6e); the resisting spring (7c1) is sleeved on the guide column (7c2); and the locking nut (7c3) is engaged with the end of the guide column (7c2).

4. A door and window profile shear force testing device according to claim 1, characterized in that: A strong magnet (6h) is fixedly arranged on the vertical plate (6e), and the strong magnet (6h) and the rotating plate (6a) can be attracted and connected.

5. A door and window profile shear force testing device as claimed in claim 2, characterized in that: The clamping mechanism (1) comprises a pressing plate (1b), a cushion block (1c), a locking screw (1d), a support block (1e) and two support plates (1a); the support block (1e) and the two support plates (1a) are fixedly mounted on the bottom plate (2); the support block (1e) is located in the middle of the two support plates (1a); the pressing plate (1b) is fixedly mounted on the top of the two support plates (1a); the top of the support block (1e) is flush with the top of a longitudinal sliding seat (6d) in a horizontal state, so that the support block (1e) and the longitudinal sliding seat (6d) can horizontally support the two aluminum profiles (4); the cushion block (1c) is pressed on the top of the aluminum profile (4); the locking screw (1d) is meshedly mounted on the pressing plate (1b), and the bottom of the locking screw (1d) abuts against the top of the cushion block (1c).

6. A door and window profile shear force testing device as claimed in claim 2, characterized in that: The side support part (3) comprises a sliding seat (3b), a sliding rail (3c), a screw hole (3d) and a screw (3e); the screw hole (3d) is fixedly mounted on the bottom plate (2); the sliding seat (3b) is slidably connected to the sliding rail (3c); a plurality of screw holes are provided on the sliding rail (3c); the screw (3e) passes through the sliding seat (3b) and is meshed with the screw hole; and the plurality of rotating wheels (3a) are rotatably mounted on the top of the sliding seat (3b).

7. A door and window profile shear force testing device as claimed in claim 1, characterized in that: A clamping strip (6x) is fixedly arranged on the top of the bottom plate (2), a groove for clamping with the clamping strip (6x) is provided on the bottom of the transverse sliding seat (6c), a T-shaped block is fixedly arranged on the top of the transverse sliding seat (6c), and a trapezoidal groove for matching with the T-shaped block is provided on the bottom of the longitudinal sliding seat (6d).

Images