Hollow laminated glass corner cold bending test loading device

Abstract

The invention discloses a loading device for a corner cold bending test of hollow laminated glass, and relates to the technical field of test loading devices. Comprising an adapter base, a mounting frame is mounted on the adapter base, a nut lifting type lifter is mounted at the position, close to the adapter base, of the mounting frame, a lead screw lifting type lifter is mounted on the mounting frame, and the lead screw lifting type lifter is detachably connected with a pressure sensor. The lower side of the pressure sensor is detachably connected with a floating connector, the lower side of the floating connector is detachably connected with a mounting shell, and annularly-distributed main supporting rods and annularly-distributed secondary supporting rods are slidably connected into the mounting shell in a limited mode. The size of the loading area is changed by changing the size of the area defined by the main supporting rods and the secondary supporting rods, different loading blocks do not need to be replaced for multiple times, the time needed by the test is saved, meanwhile, the test steps are reduced, and the test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of test loading devices, and in particular to a hollow laminated glass corner cold bending test loading device. Background Art

[0002] Glass cold bending refers to the process of bending glass without heating, but there is currently a lack of standards and specifications for glass cold bending. It is planned to study the stress performance of glass during the cold bending process and verify the rationality of the cold bending theoretical analysis through glass cold bending tests. When conducting the corner cold bending test of hollow laminated glass, it is necessary to fix the three corners of the glass, and make the loading block on the loading device contact the unfixed corner point on the glass. Then, the loading point is controlled to move downward by the loading device and force is applied to the glass to bend the glass. The point where the loading block contacts the glass is the loading point, and the area of ​​the loading point is the loading area. When studying the influence of the loading area on the stress distribution on the glass surface, it is necessary to continuously replace different loading blocks during the test, which makes the test operation cumbersome and is not conducive to the conduct of the test. Summary of the invention

[0003] The invention provides a hollow laminated glass corner cold bending test loading device to overcome the disadvantage of complicated operation steps in the existing glass cold bending test.

[0004] The technical solution of the present invention is: a hollow laminated glass corner cold bending test loading device, including an adapter seat, a mounting frame is installed on the adapter seat, a nut lifting type elevator is installed on the mounting frame near the adapter seat, a support plate slidably connected to the mounting frame is installed on the nut lifting type elevator, a screw lifting type elevator is installed on the mounting frame away from the adapter seat, a pressure sensor is detachably connected to the position of the screw lifting type elevator near the adapter seat, a floating joint is detachably connected to the lower side of the pressure sensor, a mounting shell is detachably connected to the lower side of the floating joint, an adjusting disk is rotatably connected in the mounting shell, an annularly distributed arc groove is arranged on the adjusting disk, a main support rod and a secondary support rod are limitedly slidably connected in the mounting shell, the annularly distributed secondary support rods and the annularly distributed main support rods are staggered, and the main support rod and the secondary support rod are respectively slidably connected to adjacent arc grooves.

[0005] Furthermore, a rotating handle is rotatably connected to the mounting shell, and the rotating handle is engaged with the adjusting disk.

[0006] Furthermore, the main support rod is located outside the mounting shell and is fixedly connected to an outer arc plate on one side close to the central axis of the adjusting disk, the secondary support rod is located outside the mounting shell and is fixedly connected to an inner arc plate on one side close to the central axis of the adjusting disk, an elastomer is arranged under the mounting shell, and both the outer arc plate and the inner arc plate are in contact with and cooperate with the elastomer.

[0007] Furthermore, the side of the outer arc plate close to the central axis of the adjusting disk contacts the side of the inner arc plate away from the central axis of the adjusting disk, and the inner arc plate is fixed with symmetrically distributed fitting folds, and the fitting folds are in contact and cooperate with the elastic body, and the side of the fitting folds away from the adjacent inner arc plate contacts the side of the adjacent outer arc plate close to the central axis of the adjusting disk.

[0008] Furthermore, the outer arc plate, the inner arc plate and the fitting folding plate are all made of elastic materials, and in a free state, the radius corresponding to the inner arc plate is equal to the maximum distance between the arc groove and the central axis of the adjusting disk, and the radius corresponding to the outer arc plate is equal to the minimum distance between the arc groove and the central axis of the adjusting disk.

[0009] Furthermore, an extrusion piece is slidably connected to the lower side of the mounting shell, the extrusion piece is fixedly connected to the elastomer, the extrusion piece is threadedly connected to the adjusting disk, the extrusion piece is fixedly connected to a ring-shaped swinging plate through an elastic sheet, the outer arc plate and the inner arc plate are respectively in contact with and cooperate with the adjacent swinging plates, and the swinging plates are in contact with and cooperate with the elastomer.

[0010] Furthermore, the annularly distributed swing plates are slidably connected with equidistantly distributed elastic ropes, and the elastic ropes are used to reduce the volume of the elastic body entering the gap between adjacent swing plates.

[0011] Furthermore, it also includes a mounting ring, which is rotatably connected to the mounting shell near the support plate, and a rubber pad is fixed to the lower side of the mounting ring, and the main support rod, the secondary support rod and the elastomer are all squeezed and matched with the rubber pad.

[0012] Furthermore, a support member is fixedly connected to one side of the main support rod close to the rubber pad, and the inner diameter of the support member is larger than the outer diameter of the adjacent outer arc-shaped plate, so as to increase the contact area between the adjacent main support rod and the rubber pad.

[0013] Furthermore, the mounting ring is rotatably connected to a one-way ring, the one-way ring is rotatably connected to the mounting shell, and the one-way ring is engaged with the rotating handle.

[0014] In summary, the present application includes at least one of the following beneficial technical effects: the present invention changes the size of the loading area by changing the size of the area enclosed by the main support rod and the secondary support rod, thereby eliminating the need to replace different loading blocks multiple times, saving the time required for the test, while reducing the test steps and improving the test efficiency.

[0015] The elastic body is deformed by extruding the extrusion piece to fill the middle part of the circle surrounded by the main support rods and the secondary support rods, thereby increasing the contact area between the device and the glass based on the circle surrounded by the three main support rods and the three secondary support rods, thereby preventing damage to the glass due to stress concentration caused by the small contact area.

[0016] By providing the rubber pad, the device is no longer in hard contact with the glass, thereby avoiding the possibility of glass damage due to hard contact and affecting the test data. At the same time, by utilizing the cooperation between the support and the one-way ring, the main support rod, the secondary support rod and other parts are in contact with the rubber pad at different positions, and the rubber pad is used to apply force to the glass, which slows down the rate of damage of the rubber pad and thereby increases the service life of the rubber pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the mounting frame, the nut lifting type elevator and the supporting plate of the present invention;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the pressure sensor, floating joint and mounting shell of the present invention;

[0020] Figure 4 A three-dimensional structural cross-sectional view of the mounting shell of the present invention;

[0021] Figure 5 It is a three-dimensional structural cross-sectional view of the mounting shell and the adjusting disk of the present invention;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the outer arc plate, the inner arc plate and the elastic body of the present invention;

[0023] Figure 7 The present invention is attached Figure 6 The enlarged view of point A in the middle;

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the inner arc plate, the elastic body and the fitting folding piece of the present invention;

[0025] Fig. 9 An exploded view of the mounting shell, the adjustment plate and the main support rod of the present invention;

[0026] Fig.10It is a schematic diagram of the three-dimensional structure of the mounting ring, rubber pad and support member of the present invention.

[0027] Figure numbers: 1-adapter, 2-mounting frame, 3-nut lifting type elevator, 4-support plate, 5-screw lifting type elevator, 6-pressure sensor, 7-floating joint, 8-mounting shell, 9-adjusting disk, 901-arc groove, 10-main support rod, 11-secondary support rod, 12-rotating handle, 13-outer arc plate, 14-inner arc plate, 15-elastic body, 16-fitting folding piece, 17-extruded part, 18-swinging plate, 19-elastic rope, 20-mounting ring, 21-rubber pad, 22-support part, 23-one-way ring. DETAILED DESCRIPTION

[0028] 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.

[0029] When studying the influence of loading area on stress distribution on glass surface through glass cold bending test, it is necessary to constantly replace different loading blocks during the test, which makes the test operation cumbersome and not conducive to the test.

[0030] Example 1: A loading device for cold bending test of hollow laminated glass corners, see Figure 1-Figure 5, including an adapter seat 1, a mounting frame 2 is installed on the adapter seat 1 by bolts, a nut lifting type elevator 3 (that is, a nut lifting type worm gear screw elevator, which is an existing device and is not described in detail here) is installed at the lower part of the mounting frame 2, a support plate 4 is slidably connected to the lower part of the left side of the mounting frame 2, the support plate 4 is fixedly connected to the lifting nut of the nut lifting type elevator 3, and is used to drive the support plate 4 to move up and down through the nut lifting type elevator 3, a screw lifting type elevator 5 (that is, a screw lifting type worm gear screw elevator, which is an existing device and is not described in detail here) is installed on the upper side of the mounting frame 2, the lower end of the screw on the screw lifting type elevator 5 is threadedly connected to a pressure sensor 6, and the lower side of the pressure sensor 6 is threadedly connected to a floating joint 7 (the floating joint 7 is an existing The mounting shell 8 is threadedly connected to the bottom of the floating joint 7, and an adjusting disk 9 is rotatably connected inside the mounting shell 8. Six arc grooves 901 distributed in an annular manner are arranged on the adjusting disk 9, and in the clockwise direction (the rotation perspective in this article is from top to bottom), the distance between the arc groove 901 and the central axis of the adjusting disk 9 gradually increases, and three main support rods 10 distributed in an annular manner and three secondary support rods 11 distributed in an annular manner are limitedly slidably connected inside the mounting shell 8, and the main support rods 10 and the secondary support rods 11 slide along the directions of adjacent radii on the mounting shell 8 respectively, and the secondary support rods 11 distributed in an annular manner and the main support rods 10 distributed in an annular manner are staggered, and the main support rods 10 and the secondary support rods 11 are slidably connected to adjacent arc grooves 901 respectively.

[0031] See also Figure 3 and Figure 4 The left side of the mounting shell 8 is rotatably connected with a rotating handle 12, and the rotating handle 12 is engaged with the adjusting disk 9, and the above two are similar to a worm gear.

[0032] See also Figure 5 and Figure 6 An outer arc plate 13 is fixedly connected to the lower part of the main support rod 10 and one side close to the central axis of the adjusting disk 9, and an inner arc plate 14 is fixedly connected to the lower part of the secondary support rod 11 and one side close to the central axis of the adjusting disk 9. The outer arc plate 13 and the inner arc plate 14 are both made of elastic materials, and in the free state, the radius corresponding to the inner arc plate 14 is equal to the maximum distance between the arc groove 901 and the central axis of the adjusting disk 9, and the radius corresponding to the outer arc plate 13 is equal to the minimum distance between the arc groove 901 and the central axis of the adjusting disk 9. The outer arc plate 13 and the inner arc plate 14 cooperate to form a cylindrical shape, and an elastomer 15 is arranged below the mounting shell 8. The elastomer 15 is made of elastic material, and the outer arc plate 13 and the inner arc plate 14 are both in contact with the elastomer 15. The elastomer 15 is used to fill the middle part of the cylindrical shape formed by the outer arc plate 13 and the inner arc plate 14 to prevent the glass from being damaged by excessive local extrusion force.

[0033] See also Figure 7The inner side surface of the outer arc plate 13 contacts the outer side surface of the inner arc plate 14. Two symmetrically distributed fitting folds 16 are fixed to the inner arc plate 14. The fitting folds 16 are made of elastic material. The fitting folds 16 are in contact with the elastomer 15. The side of the fitting fold 16 away from the adjacent inner arc plate 14 contacts the inner side surface of the adjacent outer arc plate 13 to prevent the elastomer 15 from entering between the outer arc plate 13 and the adjacent inner arc plate 14.

[0034] See also Figure 8 and Fig. 9 , the lower side of the mounting shell 8 is slidably connected with an extrusion piece 17, the lower side of the extrusion piece 17 is fixedly connected to the elastic body 15, and the extrusion piece 17 is threadedly connected to the adjusting disk 9, which is used to drive the extrusion piece 17 to move up and down when the adjusting disk 9 rotates. The extrusion piece 17 is fixedly connected with a plurality of swing plates 18 distributed in an annular manner through elastic sheets, and initially, the elastic sheets adjacent to the swing plates 18 are in a force storage state, that is, the swing plate 18 is under the action of its adjacent elastic sheets, and the lower end of the swing plate 18 has a tendency to move away from the central axis direction of the extrusion piece 17, the swing plate 18 is in contact with the elastic body 15, and the outer arc plate 13 and the inner arc plate 14 are in contact with the adjacent swing plates 18 respectively. The swing plate 18 is used to block the gap between the extrusion piece 17 and the outer arc plate 13 and the inner arc plate 14 to prevent the elastic body 15 from entering the gap between the extrusion piece 17 and the outer arc plate 13 and the inner arc plate 14.

[0035] See also Figure 8 and Fig. 9 A plurality of annularly distributed swing plates 18 are slidably connected together with three elastic ropes 19 equidistantly distributed up and down. The elastic ropes 19 are used to reduce the volume of the elastic body 15 entering the gap between adjacent swing plates 18. The elastic coefficient of the adjacent elastic sheets of the swing plate 18 is greater than the elastic coefficient of the three elastic ropes 19.

[0036] When conducting a glass cold bending experiment, the experimenter arranges four loading devices in a rectangular distributed manner, then installs clamps on the pallets 4 on three of the loading devices, and adjusts the three pallets 4 to the same horizontal plane through the nut lifting type elevator 3. Then the experimenter fixes the three corners of the test hollow laminated glass using adjacent clamps. After the fixation is completed, the experimenter installs parts such as the pressure sensor 6 on the loading device without the clamp installed. The specific operation is: install the pressure sensor 6 to the lower end of the screw on the screw lifting type elevator 5 through a thread, then install the floating joint 7 to the lower side of the pressure sensor 6 through a thread, and install the mounting shell 8 to the lower side of the floating joint 7 through a thread. At this time, the center of the loading point on the glass is located on the central axis of the mounting shell 8, and the installation of the parts is completed at this time.

[0037] After completing the installation of the parts, the tester adjusts the area of ​​the circle enclosed by the main support rods 10 and the secondary support rods 11 according to the size of the loading area. The specific operation is as follows: the tester turns the rotating handle 12, and the rotating handle 12 rotates counterclockwise through the threaded transmission adjustment disk 9. The adjustment disk 9 squeezes the adjacent main support rods 10 and the adjacent secondary support rods 11 through the arc groove 901 to move away from their central axis, so that the area of ​​the circle enclosed by the three main support rods 10 and the three secondary support rods 11 increases until the area is equal to the required loading area. The tester stops turning the rotating handle 12, and relies on the self-locking property of the worm gear to keep the main support rods 10 and the secondary support rods 11 stationary during the subsequent contact with the glass.

[0038] During the movement of the main support rod 10 and the secondary support rod 11, the main support rod 10 drives the adjacent outer arc plate 13 to move, and the secondary support rod 11 drives the adjacent inner arc plate 14 to move. As the area of ​​the circle surrounded by the three main support rods 10 and the three secondary support rods 11 increases, the inner arc plate 14 drives the two adjacent fitting folds 16 to slide along the inner side surfaces of the adjacent outer arc plates 13 (the inner side surfaces are the side surfaces of the outer arc plates 13 close to their central axis). During this process, under the action of its own elasticity, the side of the fitting fold 16 away from the adjacent outer arc plate 13 is always fitted with the inner side surface of the adjacent outer arc plate 13, preventing the subsequent elastomer 15 from being stuck between the outer arc plate 13 and the adjacent inner arc plate 14.

[0039] During the rotation of the adjusting disk 9, the adjusting disk 9 moves downward through the threaded transmission extrusion piece 17, and the extrusion piece 17 drives the elastic body 15 to move. At the same time, the swing plate 18 swings under the action of the adjacent elastic sheet, so that the lower end of the swing plate 18 is always in contact with the adjacent outer arc plate 13 or the inner arc plate 14. During the movement, the volume of the "cylinder" surrounded by the three outer arc plates 13, the three inner arc plates 14, the plurality of swing plates 18 and the extrusion piece 17 is always equal to the volume of the elastic body 15, that is, after the elastic body 15 is squeezed, the lower side surface of the elastic body 15 is always coplanar with the lower sides of the main support rod 10, the secondary support rod 11, the outer arc plate 13 and the inner arc plate 14.

[0040] During the swinging process of the swinging plate 18, the swinging plate 18 stretches the three elastic ropes 19 therein to increase the length of the elastic ropes 19, and the gap between two adjacent swinging plates 18 is separated by the three elastic ropes 19, so as to prevent the elastic body 15 from entering the gap between the two adjacent swinging plates 18 after being squeezed and deformed, so as to ensure that the lower side surface of the elastic body 15 after being squeezed is always coplanar with the lower sides of the main support rod 10, the secondary support rod 11, the outer arc plate 13 and the inner arc plate 14, thereby ensuring the accuracy of the loading area, and increasing the contact area between the device and the glass on the basis of the circle surrounded by the three main support rods 10 and the three secondary support rods 11, so as to prevent the damage of the glass due to stress concentration caused by the small contact area.

[0041] After the loading area is adjusted, the tester controls the installation shell 8 to move downward through the screw-type elevator 5, so that the installation shell 8 drives all the parts thereon to move downward together, wherein the elastic body 15 first contacts the loading point of the glass, and as the installation shell 8 continues to move downward, the elastic body 15 is squeezed and deformed, so that the elastic body 15 fills the "cylinder" surrounded by the three outer arc plates 13, the three inner arc plates 14, the plurality of swing plates 18 and the extrusion piece 17. At this time, the lower side surface of the elastic body 15 is coplanar with the lower side surfaces of the main support rod 10, the secondary support rod 11, the outer arc plate 13 and the inner arc plate 14, and at the same time, the main support rod 10, the secondary support rod 11, the outer arc plate 13 and the inner arc plate 14 are all in contact with the glass. Then the tester completes the test according to the test steps and records the magnitude of the force applied to the glass through the pressure sensor 6 at all times.

[0042] When the loading area needs to be changed, the tester controls the mounting shell 8 to move up through the screw-type lift 5 until the mounting shell 8 and its parts lose contact with the glass, and then repeats the above-mentioned steps of rotating the rotating handle 12 to change the area of ​​the circle surrounded by the three main support rods 10 and the three secondary support rods 11, and continues the test. After the test is completed, the tester removes the pressure sensor 6, the floating joint 7 and the mounting shell 8 in turn, and releases the three clamps from fixing the glass. At this time, the tester removes the glass, and then rotates the rotating handle 12 to rotate the adjustment disk 9 clockwise and reset it.

[0043] Example 2: Based on Example 1, please refer to Figure 3 and Fig.10 , and also includes a mounting ring 20, which is rotatably connected to the lower part of the mounting shell 8, and a rubber pad 21 is fixedly connected to the lower side of the mounting ring 20. The main support rod 10, the secondary support rod 11 and the elastomer 15 are all squeezed and matched with the rubber pad 21 to prevent the main support rod 10 and the secondary support rod 11 from directly contacting the glass and causing damage to the glass.

[0044] See also Figure 6 , Fig. 9 and Fig.10 A support member 22 is fixedly connected to the lower end of the main support rod 10. The inner diameter of the support member 22 is larger than the outer diameter of the adjacent outer arc plate 13, which is used to prevent the support member 22 from interfering with the deformation of the adjacent outer arc plate 13 and increase the contact area between the main support rod 10 and the rubber pad 21.

[0045] See also Fig.10 The upper side of the mounting ring 20 is rotatably connected with a one-way ring 23, the one-way ring 23 is rotatably connected to the mounting shell 8, the one-way ring 23 is engaged with the rotating handle 12, and when the one-way ring 23 rotates counterclockwise, the mounting ring 20 can be driven to rotate, and when the one-way ring 23 rotates clockwise, the mounting ring 20 cannot be driven to rotate.

[0046] When the rotating handle 12 is rotated, the rotating handle 12 rotates counterclockwise through the threaded one-way ring 23, and the one-way ring 23 drives the rubber pad 21 to rotate through the mounting ring 20. When the test is in progress, the main support rod 10, the secondary support rod 11, the outer arc plate 13, the inner arc plate 14, the elastomer 15 and the support member 22 squeeze the rubber pad 21 together, and the glass is squeezed through the rubber pad 21 to prevent the main support rod 10, the secondary support rod 11, the outer arc plate 13 and the inner arc plate 14 from directly squeezing the glass and causing damage to the glass.

[0047] When it is necessary to reduce the loading area, the tester rotates the rotating handle 12 in the opposite direction. The rotating handle 12 drives the main support rod 10 and the secondary support rod 11 to move through the adjusting disk 9, so that the area of ​​the circle surrounded by the three main support rods 10 and the three secondary support rods 11 is reduced. During the reversal of the rotating handle 12, the rotating handle 12 drives the one-way ring 23 to rotate clockwise through the bolt. At this time, the one-way ring 23 cannot drive the mounting ring 20 to rotate, so that the positions of the main support rod 10, the secondary support rod 11, the outer arc plate 13, the inner arc plate 14 and the support member 22 squeezing the rubber pad 21 are different each time, thereby increasing the service life of the rubber pad 21.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A hollow laminated glass corner cold bending test loading device, characterized by: The invention comprises an adapter seat (1), a mounting frame (2) is mounted on the adapter seat (1), a nut lifting type elevator (3) is mounted on the mounting frame (2) at a position close to the adapter seat (1), a support plate (4) slidably connected to the mounting frame (2) is mounted on the nut lifting type elevator (3), a screw lifting type elevator (5) is mounted on the mounting frame (2) at a position away from the adapter seat (1), a pressure sensor (6) is detachably connected to the position of the screw lifting type elevator (5) close to the adapter seat (1), and a pressure sensor (6) is detachably connected to the lower side of the pressure sensor (6). A floating joint (7), wherein the lower side of the floating joint (7) is detachably connected to a mounting shell (8), an adjusting disk (9) is rotatably connected inside the mounting shell (8), an annularly distributed arc groove (901) is provided on the adjusting disk (9), an annularly distributed main support rod (10) and an annularly distributed secondary support rod (11) are limitedly slidably connected inside the mounting shell (8), the annularly distributed secondary support rod (11) and the annularly distributed main support rod (10) are staggeredly distributed, and the main support rod (10) and the secondary support rod (11) are respectively slidably connected to adjacent arc grooves (901).

2. The hollow laminated glass corner cold bending test loading device according to claim 1, characterized in that: A rotating handle (12) is rotatably connected to the mounting shell (8), and the rotating handle (12) is meshed with the adjusting disk (9).

3. The hollow laminated glass corner cold bending test loading device according to claim 1, characterized in that: The main support rod (10) is located outside the mounting shell (8) and is fixedly connected to an outer arc plate (13) on one side close to the central axis of the adjusting disk (9); the secondary support rod (11) is located outside the mounting shell (8) and is fixedly connected to an inner arc plate (14) on one side close to the central axis of the adjusting disk (9); an elastic body (15) is arranged below the mounting shell (8); and both the outer arc plate (13) and the inner arc plate (14) are in contact with and cooperate with the elastic body (15).

4. The hollow laminated glass corner cold bending test loading device according to claim 3, characterized in that: The side of the outer arc plate (13) close to the central axis of the adjusting disk (9) contacts the side of the inner arc plate (14) away from the central axis of the adjusting disk (9); the inner arc plate (14) is fixed with symmetrically distributed fitting folds (16); the fitting folds (16) are in contact with the elastic body (15); the side of the fitting folds (16) away from the adjacent inner arc plate (14) contacts the side of the adjacent outer arc plate (13) close to the central axis of the adjusting disk (9).

5. The hollow laminated glass corner cold bending test loading device according to claim 4, characterized in that: The outer arc plate (13), the inner arc plate (14) and the fitting folding sheet (16) are all made of elastic materials, and in a free state, the radius corresponding to the inner arc plate (14) is equal to the maximum distance between the arc groove (901) and the central axis of the adjusting disk (9), and the radius corresponding to the outer arc plate (13) is equal to the minimum distance between the arc groove (901) and the central axis of the adjusting disk (9).

6. The hollow laminated glass corner cold bending test loading device according to claim 4, characterized in that: The lower side of the mounting shell (8) is slidably connected with an extrusion piece (17), the extrusion piece (17) is fixedly connected to the elastic body (15), the extrusion piece (17) is threadedly connected to the adjusting disk (9), the extrusion piece (17) is fixedly connected to an annularly distributed swinging plate (18) through an elastic sheet, the outer arc plate (13) and the inner arc plate (14) are respectively in contact with the adjacent swinging plate (18), and the swinging plate (18) is in contact with the elastic body (15).

7. The hollow laminated glass corner cold bending test loading device according to claim 6, characterized in that: The annularly distributed swing plates (18) are slidably connected together with equidistantly distributed elastic ropes (19), and the elastic ropes (19) are used to reduce the volume of the elastic body (15) entering the gap between adjacent swing plates (18).

8. The hollow laminated glass corner cold bending test loading device according to claim 6, characterized in that: It also includes a mounting ring (20), the mounting ring (20) being rotatably connected to the mounting shell (8) at a position close to the support plate (4), a rubber pad (21) being fixedly connected to the lower side of the mounting ring (20), and the main support rod (10), the secondary support rod (11) and the elastic body (15) are all extruded and matched with the rubber pad (21).

9. The hollow laminated glass corner cold bending test loading device according to claim 8, characterized in that: A support member (22) is fixedly connected to one side of the main support rod (10) close to the rubber pad (21); the inner diameter of the support member (22) is larger than the outer diameter of the adjacent outer arc-shaped plate (13), so as to increase the contact area between the adjacent main support rod (10) and the rubber pad (21). The hollow laminated glass corner cold bending test loading device according to claim 8 is characterized in that: The mounting ring (20) is rotatably connected to a one-way ring (23), the one-way ring (23) is rotatably connected to the mounting shell (8), and the one-way ring (23) is meshed with the rotating handle (12).

Images