Glass article impact testing apparatus

By introducing a liftable electromagnetic chuck and pulley block linkage structure into the glass impact testing device, the problem of fixing the falling height of the steel ball was solved, enabling impact resistance performance testing under multiple height conditions and improving the richness and accuracy of the test data.

CN224399101UActive Publication Date: 2026-06-23SGS-CSTC STANDARDS TECH SERVICES LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520834778.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-06-23
Estimated Expiration
2035-04-29

AI Technical Summary

Technical Problem

In existing glass impact testing devices, the height at which the steel ball falls is fixed and cannot be adjusted, resulting in limited test data and a narrow range of applications.

Method used

It adopts a height-adjustable electromagnetic chuck and lifting cylinder structure. Through the height adjustment of the electromagnetic chuck and the linkage of the pulley group, the falling height of the steel ball can be flexibly adjusted, and the limiting structure ensures vertical falling.

Benefits of technology

It enriches the test data, expands the applicability of the device, improves the accuracy and efficiency of test results, reduces vibration interference, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224399101U_ABST
    Figure CN224399101U_ABST
Patent Text Reader

Abstract

The utility model discloses a glass product impact testing device belongs to experimental equipment technical field. Aiming at the single problem of test data caused by the fixed falling height of the steel ball of the existing device, an innovative solution is provided. The utility model discloses at least three non - coplanar support rods through the first support plate setting, one of the support rod sets up the liftable lifting cylinder, and the lifting cylinder is connected with the adjusting frame and installs the electromagnetic chuck, and the electromagnetic chuck is connected with the power supply through the electric connection line that is equipped with on - off switch, realizes the adsorption and release to the steel ball, and the top second support plate sets up first deflection pulley and second deflection pulley, and is linked with the lifting cylinder and the lifting block through the lifting connection line linkage, realizes the height continuous regulation of electromagnetic chuck. The utility model discloses through the height -adjustable electromagnetic chuck and the pulley set transmission structure, can change the falling height of ball flexibly, realizes different impact force test, and the diversity and application scope of glass product impact resistance performance test have been improved significantly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically to a glass product impact testing device. Background Technology

[0002] To ensure the quality of glass products before they leave the factory, impact tests are generally conducted to verify their impact resistance. Patent CN108645725A discloses a novel glass impact testing device. This device uses a conveyor belt with a support plate to continuously transport steel balls from a lower to a higher point, thus conducting continuous impact tests on the glass at the lower level. However, the storage trough for receiving the steel balls at the higher level is fixed to the guide trough on the tube and its height cannot be adjusted. This means the steel balls can only fall from a specific height to test the glass for a specific impact force, resulting in limited test data and a narrow range of applications. Utility Model Content

[0003] This utility model provides a glass product impact testing device, which sets the electromagnetic chuck to be liftable, so that the steel ball it adsorbs can flexibly adjust the starting height of its fall, thereby changing the impact force on the glass product.

[0004] To achieve these and other advantages according to the present invention, a glass article impact testing apparatus is provided, comprising:

[0005] A first support plate is horizontally arranged, and at least three vertical support rods that are not on the same plane are arranged on the first support plate. A lifting cylinder is movably sleeved on one of the support rods. An adjustment frame is arranged on the lifting cylinder, and an electromagnetic chuck is installed on the adjustment frame. The electromagnetic chuck is connected to a power source through an electrical connection line, and an on / off switch is arranged on the electrical connection line.

[0006] The second support plate is horizontally set on top of each support rod. The second support plate is provided with a first steering pulley and a second steering pulley arranged side by side. The same lifting connecting line is movably passed through the groove of the first steering pulley and the second steering pulley. One end of the lifting connecting line extends vertically downward to connect with the lifting cylinder, and the other end extends vertically downward to connect with the lifting block.

[0007] Preferably, in the glass product impact testing device, the first support plate is provided with a pair of vertical limiting rods, the lifting block is provided with a pair of limiting holes, and the pair of limiting rods are movably inserted into the pair of limiting holes.

[0008] Preferably, in the glass impact testing device, the adjusting frame includes:

[0009] At least two horizontal adjusting rods, each with an adjusting cylinder sleeved on it, and a vertical adjusting plate mounted on the uppermost adjusting cylinder, with the electromagnetic chuck mounted on the adjusting plate in a vertical and adjustable manner.

[0010] The limiting tube is vertically positioned directly below the electromagnetic chuck and connected to each adjusting cylinder.

[0011] Preferably, in the glass impact testing device, the adjusting plate is provided with a pair of elongated horizontal through holes extending vertically, and the electromagnetic chuck is provided with a pair of adjusting screws that are respectively movably inserted into the pair of horizontal through holes. A locking nut is movably sleeved on the adjusting screw, and the locking nut and the electromagnetic chuck together clamp the adjusting plate.

[0012] Preferably, in the glass impact testing device, a horizontal baffle is detachably provided at the top opening of the limiting tube to cover it.

[0013] Preferably, in the glass product impact testing device, a pair of limiting blocks are detachably provided on the first support plate. The limiting blocks are provided with V-shaped notches. The V-shaped notches of the pair of limiting blocks face each other and clamp the glass product to be tested. The glass product is located directly below the limiting tube.

[0014] Preferably, in the glass product impact testing device, a protective cover is provided on the first support plate to cover the glass product and the limiting block. The top of the protective cover is open and covered by a cover plate. The cover plate is provided with a movable notch, and the limiting tube is engaged at the movable notch.

[0015] Preferably, in the glass impact testing device, the bottom of the limiting tube is provided with an arc-shaped hanging wall coaxial with it and located inside the protective cover, and the hanging wall is provided with an insertion hole for installing a center alignment component.

[0016] Preferably, in the glass impact testing device, a first movable hole is provided on the side wall of the adjusting cylinder, and a first locking rod is movably inserted into the first movable hole.

[0017] Preferably, in the glass product impact testing device, a second movable hole is provided on the side wall of the lifting cylinder, and a second locking rod is movably inserted into the second movable hole.

[0018] This invention offers at least the following advantages: By setting at least three vertical support rods not on the same plane on a first support plate, and installing a movable lifting cylinder outside one of the support rods, the movement of the lifting cylinder can move the adjusting frame and electromagnetic chuck installed thereon, thus achieving stepless adjustment of the height of the electromagnetic chuck and consequently changing the falling height of the steel ball adsorbed by the electromagnetic chuck. This design overcomes the limitation of the fixed height of the holding groove for the steel ball in the prior art, making the falling height of the steel ball adjustable, enriching test data, and expanding the applicability of the device.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the glass impact testing device in one of the technical solutions of this utility model;

[0021] Figure 2 This is a side view of the glass impact testing device in one of the technical solutions of this utility model.

[0022] Figure 3 This is a top view of the cover plate structure in one of the technical solutions of this utility model;

[0023] Among them, 1 - first support plate, 2 - support rod, 3 - lifting block, 4 - lifting cylinder, 5 - on / off switch, 6 - electrical connection line, 7 - lifting connection line, 8 - second support plate, 9 - first steering pulley, 10 - second steering pulley, 11 - adjusting plate, 12 - horizontal through hole, 13 - electromagnetic chuck, 14 - baffle, 15 - adjusting cylinder, 16 - adjusting rod, 17 - limiting tube, 18 - cover plate, 19 - protective cover, 20 - glass product, 21 - limiting block, 22 - limiting rod, 23 - moving notch. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0025] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] As shown in Figures 1 and 2, this utility model provides a glass product impact testing device, comprising:

[0028] A first support plate 1 is horizontally arranged. At least three vertical support rods 2 that are not on the same plane are arranged on the first support plate 1. A lifting cylinder 4 is movably sleeved on one of the support rods 2. An adjustment frame is arranged on the lifting cylinder 4. An electromagnetic chuck 13 is installed on the adjustment frame. The electromagnetic chuck 13 is connected to a power source through an electrical connection line 6. An on / off switch 5 is arranged on the electrical connection line 6.

[0029] The second support plate 8 is horizontally set on the top of each support rod 2. The second support plate 8 is provided with a first steering pulley 9 and a second steering pulley 10 arranged side by side. The same lifting connecting line 7 is movably passed through the wheel grooves of the first steering pulley 9 and the second steering pulley 10. One end of the lifting connecting line 7 extends vertically downward to connect with the lifting cylinder 4, and the other end extends vertically downward to connect with the lifting block 3.

[0030] The glass impact testing device provided by this technical solution mainly includes a second support plate 8 and a first support plate 1, which are distributed vertically and horizontally. At least three support rods 2 that are not on the same plane are vertically distributed on the first support plate 1. The second support plate 8 is set on the top of each support rod 2, so that the support rods 2 provide stable support for the second support plate 8. One of the support rods 2 is movably fitted with a liftable lifting cylinder 4. An adjustment frame is set on the lifting cylinder 4, and an electromagnetic chuck 13 is installed on the adjustment frame. The electromagnetic chuck 13 is connected to the power supply through an electrical connection line 6 with an on / off switch 5. The on / off switch 5 controls the on / off of the electromagnetic chuck 13 so that its magnetic attraction force is generated or lost to attract or release the steel ball. The second support plate 8 is equipped with a first steering pulley 9 and a second steering pulley 10 arranged side by side. The same lifting connection line 7 passes through the wheel grooves of the first steering pulley 9 and the second steering pulley 10. Both ends of the lifting connection line 7 extend vertically downward, with one end connected to the lifting cylinder 4 and the other end connected to a lifting block 3. By adjusting the lifting cylinder 4 to move up and down along the support rod 2, the adjusting frame moves up and down, thereby enabling the electromagnetic chuck 13 to move up and down and flexibly adjust the rising and falling position of the steel ball. This device, through the linkage design of the steering pulley group and the lifting connection line 7, forms an adjustable-height impact release system. Combined with the multi-degree-of-freedom adjustment function of the adjusting frame, it can perform impact resistance tests on glass products 20 under different height conditions, solving the technical shortcomings of traditional devices with fixed testing heights.

[0031] The working principle of the glass product impact testing device provided in this technical solution is as follows: Moving the lifting cylinder 4 up and down along the support rod 2 moves the adjusting frame on the lifting cylinder 4 up and down, thereby adjusting the height of the electromagnetic chuck 13 installed on the adjusting frame. Simultaneously, utilizing the transmission action of the lifting connecting line 7 with the first steering pulley 9 and the second steering pulley 10, the lifting block 3 moves in the opposite direction to the lifting cylinder 4. When the electromagnetic chuck 13 is energized, attracts the steel ball, and moves it to the target height, the power is cut off by the on / off switch 5, allowing the steel ball to fall freely. Gravitational potential energy is used to generate an impact force on the surface of the glass product 20 directly below the steel ball, thus conducting an impact test. By repeatedly adjusting the position of the lifting cylinder 4, the impact resistance performance of the steel ball under different height conditions can be tested.

[0032] This utility model has at least the following beneficial effects:

[0033] Vertical height continuously adjustable: By moving the lifting cylinder 4, the adjusting frame and electromagnetic chuck 13 are moved vertically, realizing continuous adjustment of the vertical height of the electromagnetic chuck 13, thereby adjusting the falling height of the steel ball it attracts; at the same time, the lifting connecting line 7 passing through the first steering pulley 9 and the second steering pulley 10 is slid, causing the lifting block 3 to move in the same direction as the lifting cylinder 4; the setting of the first steering pulley 9 and the second steering pulley 10 changes the direction of the force of the lifting connecting line 7, making the adjustment operation more labor-saving and convenient;

[0034] The impact release is precise and controllable: the electromagnetic chuck 13 is connected to a power supply with an on / off switch 5 via an electrical connection line 6, which can precisely control the adsorption and release of the steel ball; after the steel ball falls freely, it falls along the vertically set adjustment frame to ensure that the impact direction is perpendicular to the surface of the glass product 20, thus improving the accuracy of the test results.

[0035] The structure is stable and reliable: the triangular support structure consisting of three non-coplanar support rods 2 and the first support plate 1, together with the second support plate 8 set horizontally at the top, forms a rigid frame, which effectively reduces vibration interference during the test; the sliding fit design between the support rods 2 and the lifting cylinder 4 ensures stability during height adjustment.

[0036] Simple and efficient operation: The lifting block 3 connects to the lifting cylinder 4 via the lifting connecting line 7, passing through the first steering pulley 9 and the second steering pulley 10 in sequence, forming a force transmission path. The first steering pulley 9 and the second steering pulley 10 change the direction of force applied by the lifting connecting line 7, which significantly reduces the force required for the vertical movement of the lifting cylinder 4 and its adjusting frame. This pulley group structure achieves labor-saving operation of the height adjustment of the lifting cylinder 4 by changing the direction of force. The on / off control of the electromagnetic chuck 13 enables the rapid release of the steel ball, simplifying the testing process and improving experimental efficiency.

[0037] In another technical solution, as shown in Figure 1, Figure 2As shown, in the glass impact testing device, a pair of vertical limiting rods 22 are provided on the first support plate 1, and a pair of limiting holes are provided on the lifting block 3. The pair of limiting rods 22 are movably inserted into the pair of limiting holes. When the lifting block 3 is manually moved, the sliding cooperation between the limiting rods 22 and the limiting holes forms a guiding constraint, ensuring that the lifting block 3 can only move in the vertical direction, thereby ensuring that the lifting cylinder 4 sleeved on the support rod 2 moves vertically in sync. Through the guiding structure of the limiting rods 22 and the limiting holes, the horizontal deviation or tilting of the lifting block 3 during the adjustment process is effectively prevented, ensuring that the electromagnetic chuck 13 always remains vertical, thereby ensuring that the falling trajectory of the steel ball is perpendicular to the surface of the glass product 20, improving the accuracy of the test results; at the same time, the cooperation between the limiting rods 22 and the limiting holes enhances the overall structural stability of the device, reduces vibration interference during the test process, and improves the service life of the equipment.

[0038] In another technical solution, as shown in Figure 1, the adjusting frame in the glass impact testing device includes:

[0039] At least two horizontal adjusting rods 16, with adjusting cylinders 15 sleeved on the adjusting rods 16, and a vertical adjusting plate 11 set on the uppermost adjusting cylinder 15, with the electromagnetic chuck 13 raised and lowered on the adjusting plate 11;

[0040] A limiting tube 17 is vertically positioned directly below the electromagnetic chuck 13 and connected to each adjusting cylinder 15. The horizontal position of the electromagnetic chuck 13 is changed by sliding the adjusting cylinders 15, which are fitted onto the horizontal adjusting rod 16. The vertical connection between the adjusting plate 11 and the adjusting cylinders 15 allows for fine-tuning of the height of the electromagnetic chuck 13. The rigid connection between the limiting tube 17 and the adjusting cylinders 15 ensures that the steel ball falls vertically within the limiting tube 17. The combination of the horizontal adjusting rod 16 and the adjusting cylinders 15 enables multi-degree-of-freedom positioning of the electromagnetic chuck 13 along the X / Y axes. The vertical adjustment function of the adjusting plate 11 improves the accuracy of the vertical height adjustment of the electromagnetic chuck 13. The guiding effect of the limiting tube 17 ensures that the impact trajectory is perpendicular to the surface of the glass product 20, thus improving the overall positioning accuracy and the accuracy of the test results.

[0041] In another technical solution, as shown in Figure 1, in the glass impact testing device, the adjusting plate 11 is provided with a pair of elongated horizontal through holes 12 extending vertically. The electromagnetic chuck 13 is provided with a pair of adjusting screws that are respectively movably inserted into the pair of horizontal through holes 12. A locking nut is movably sleeved on the adjusting screw. The locking nut and the electromagnetic chuck 13 together clamp the adjusting plate 11. When it is necessary to fine-tune the height of the electromagnetic chuck 13, the locking nut is loosened to allow the adjusting screw to slide within the horizontal through hole 12. After adjusting to the target height, the locking nut is tightened, and the adjusting plate 11 is fixed by the clamping force of the locking nut and the electromagnetic chuck 13. The cooperation between the horizontal through hole 12 and the adjusting screw enables the electromagnetic chuck 13 to be finely adjusted in height with millimeter-level precision. The quick-clamping design of the locking nut makes the height adjustment operation simple and efficient, and positioning can be completed without additional tools.

[0042] In another technical solution, as shown in Figure 1, in the glass impact testing device, a horizontal baffle 14 is detachably installed at the top opening of the limiting tube 17 to cover it. The baffle 14 can be placed at the top opening of the limiting tube 17 for easy installation and removal; after a steel ball is placed below the electromagnetic chuck 13, the baffle 14 can prevent the steel ball from falling along the limiting tube 17 and impacting the unprepared glass product 20.

[0043] In another technical solution, as shown in Figure 1, in the glass impact testing device, a pair of limiting blocks 21 are detachably mounted on the first support plate 1. Each limiting block 21 has a V-shaped notch. The V-shaped notches of the pair of limiting blocks 21 face each other and clamp the glass product 20 to be tested. The glass product 20 is located directly below the limiting tube 17. The limiting blocks 21 can be lead blocks, resting on the first support plate 1, allowing for convenient and flexible position adjustment. The V-shaped notches of the pair of limiting blocks 21 clamp the glass product 20 in the middle, preventing it from moving freely, and providing a space for the glass product 20.

[0044] In another technical solution, such as Figure 2 , Figure 3As shown, in the glass impact testing device, a protective cover 19 is provided on the first support plate 1 to cover the glass product 20 and the limiting block 21. The top of the protective cover 19 is open and covered by a cover plate 18, which has a movable notch 23. The limiting tube 17 is engaged at the movable notch 23. When an impact test is required, the cover plate 18 is slid along the outer wall of the limiting tube 17 to cover the top opening of the protective cover 19. Precise positioning is achieved through the cooperation of the movable notch 23 and the limiting tube 17, forming a closed test space. After the test is completed, the cover plate 18 is removed to remove the glass product 20 or adjust the test position. The combined structure of the protective cover 19 and the shield 18 effectively prevents glass fragments from flying during the impact test, ensuring the safety of the operators; the sliding fit design of the movable notch 23 and the limiting tube 17 not only achieves the enclosure of the test space, but also does not affect the vertical falling trajectory of the steel ball; the movable shield 18 facilitates the loading and unloading of the glass product 20 before and after the test, improving experimental efficiency.

[0045] In another technical solution, as shown in Figure 1, in the glass impact testing device, the bottom of the limiting tube 17 is provided with an arc-shaped hanging wall coaxial with it and located inside the protective cover 19. The hanging wall is provided with a socket for installing a center alignment component. The center alignment component is provided with a rod, which is inserted into the socket to install the center alignment component on the hanging wall. Before the test, the center alignment component is inserted into the socket of the hanging wall, and the center point is calibrated by contacting the surface of the glass product 20 with its tip or reference surface. After adjusting the position of the glass product 20 to align the test point with the center alignment component, the center alignment component is removed. When the steel ball falls along the limiting tube 17, it can accurately strike the calibrated center point. The coaxial design of the arc-shaped hanging wall and the limiting tube 17 ensures the stability of the center alignment component installation. The closed environment inside the protective cover 19 avoids external interference during the calibration process. The socket structure enables quick loading and unloading of the center alignment component. Center point calibration significantly improves the positional accuracy of the impact test, reduces human positioning error, and thus improves the accuracy and repeatability of the test results.

[0046] In another technical solution, in the glass impact testing device, a first movable hole is provided on the side wall of the adjusting cylinder, and a first locking rod is movably inserted into the first movable hole. Adjusting the insertion depth of the first locking rod adjusts the tightness of the clamping action between the locking rod and the side wall of the adjusting cylinder, thereby fixing the relative position of the adjusting rod and the adjusting cylinder and preventing the adjusting cylinder from moving arbitrarily along the adjusting rod. The first movable hole can be a threaded hole, and the first locking rod can be a screw or threaded rod; adjustment is flexible and convenient.

[0047] In another technical solution, in the glass impact testing device, a second movable hole is provided on the side wall of the lifting cylinder, and a second locking rod is movably inserted into the second movable hole. Adjusting the insertion depth of the second locking rod adjusts the tightness of its clamping of the support rod with the side wall of the lifting cylinder, thereby fixing the relative position of the support rod and the lifting cylinder and preventing the lifting cylinder from moving arbitrarily along the support rod. The second movable hole can be a threaded hole, and the second locking rod can be a screw or threaded rod; adjustment is flexible and convenient.

[0048] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0049] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An impact testing device for glass products, characterized in that, include: A first support plate is horizontally arranged, and at least three vertical support rods that are not on the same plane are arranged on the first support plate. A lifting cylinder is movably sleeved on one of the support rods. An adjustment frame is arranged on the lifting cylinder, and an electromagnetic chuck is installed on the adjustment frame. The electromagnetic chuck is connected to a power source through an electrical connection line, and an on / off switch is arranged on the electrical connection line. The second support plate is horizontally set on top of each support rod. The second support plate is provided with a first steering pulley and a second steering pulley arranged side by side. The same lifting connecting line is movably passed through the groove of the first steering pulley and the second steering pulley. One end of the lifting connecting line extends vertically downward to connect with the lifting cylinder, and the other end extends vertically downward to connect with the lifting block.

2. The glass impact testing device as described in claim 1, characterized in that, The first support plate is provided with a pair of vertical limiting rods, and the lifting block is provided with a pair of limiting holes. The pair of limiting rods are movably inserted into the pair of limiting holes.

3. The glass impact testing device as described in claim 1, characterized in that, The adjustment frame includes: At least two horizontal adjusting rods are provided, with adjusting cylinders fitted on the adjusting rods. A vertical adjusting plate is provided on the uppermost adjusting cylinder, and the electromagnetic chuck is raised and lowered on the adjusting plate. A limiting tube is provided, which is vertically arranged directly below the electromagnetic chuck and connected to each adjusting cylinder.

4. The glass impact testing device as described in claim 3, characterized in that, The adjustment plate is provided with a pair of elongated horizontal through holes extending vertically. The electromagnetic chuck is provided with a pair of adjusting screws that are respectively movably inserted into the pair of horizontal through holes. A locking nut is movably sleeved on the adjusting screw. The locking nut and the electromagnetic chuck together clamp the adjustment plate.

5. The glass impact testing device as described in claim 3, characterized in that, A horizontal baffle can be detachably installed at the top opening of the limiting tube to cover it.

6. The glass impact testing device as described in claim 3, characterized in that, A pair of limiting blocks are detachably provided on the first support plate. The limiting blocks are provided with V-shaped notches. The V-shaped notches of the pair of limiting blocks face each other and clamp the glass product to be tested. The glass product is located directly below the limiting tube.

7. The glass impact testing apparatus as described in claim 6, characterized in that, The first support plate is provided with a protective cover to cover the glass product and the limiting block. The top of the protective cover is open and covered with a cover plate. The cover plate is provided with a movable notch, and the limiting tube is locked at the movable notch.

8. The glass impact testing apparatus as described in claim 7, characterized in that, The bottom of the limiting tube is provided with an arc-shaped hanging wall that is coaxial with it and located inside the protective cover, and the hanging wall is provided with an insertion hole for installing the center alignment part.

9. The glass impact testing device as described in claim 3, characterized in that, The adjusting cylinder has a first movable hole on its side wall, and a first locking rod is movably inserted into the first movable hole.

10. The glass impact testing apparatus as described in claim 1, characterized in that, A second movable hole is provided on the side wall of the lifting cylinder, and a second locking rod is inserted into the second movable hole.

Citation Information

Patent Citations

  • Novel glass impact test device

    CN108645725A