Falling ball releasing clamp device

Abstract

The utility model belongs to the technical field of testing, and particularly relates to a falling ball releasing clamp device which comprises a mounting seat and a clamping jaw hinged to the bottom of the mounting seat and used for clamping and releasing a ball. The pull rope is connected with the clamping jaw, when the pull rope is tensioned, the clamping jaw keeps a clamping state, and when the pull rope is loosened, the clamping jaw (2) is in a release state; the number of the clamping jaws is two or more, the two or more clamping jaws are the same in structure, the inner walls of the two or more clamping jaws define a containing cavity for containing a ball, and the bottom of the containing cavity is conical. According to the clamp device, the clamping jaws are automatically opened through the self weight of the ball body, the accuracy of the falling point of the ball body can be effectively improved, meanwhile, clamping is more facilitated through the pull rope structure, and operation is more convenient and faster. Meanwhile, the bottom of the containing cavity is conical, the containing cavity can be matched with balls of different sizes, when the balls of different sizes need to be used for ball falling testing, the clamp does not need to be replaced, and the testing convenience is further improved.

Description

Technical Field

[0001] This application belongs to the field of testing technology, and in particular relates to a clamping device for releasing a falling ball. Background Technology

[0002] Dual-wave photovoltaic modules use glass panels for both the front and back panels. The glass used for the front and back panels needs to have certain strength requirements, which usually requires a drop ball test.

[0003] In the requirements of drop ball testing, different sizes of iron balls are needed when testing glass of different thicknesses according to different standards. Traditional clamps require frequent changes in clamp size to accommodate different balls. Electromagnetic clamps may fail to hold the ball in place when the power is off or when the electromagnetic force is not matched with the weight of the steel ball. Traditional clamps use a bottom pin structure, which will cause friction on the ball, causing the ball to fall horizontally rather than in a straight line. This cannot guarantee that the impact center of iron balls of different sizes is controlled within 25mm of the center of the iron frame, and the accuracy of the impact point cannot meet the requirements. Utility Model Content

[0004] To address the shortcomings of existing technologies in achieving the required landing accuracy, this application provides a clamping device for releasing a falling ball.

[0005] A ball-releasing clamping device includes a mounting base.

[0006] The gripper, hinged to the bottom of the mounting base, is used to grip and release the ball;

[0007] Pull the cord, which is connected to the gripper. Pulling the cord tightens the gripper and keeps it in a clamping state. Releasing the cord releases the gripper.

[0008] The number of grippers is two or more, the two or more grippers have the same structure, and the inner walls of the two or more grippers enclose a cavity for accommodating the sphere, the bottom of the cavity being conical.

[0009] Specifically, the mounting base is provided with a through hinge hole, and a pin is provided in the hinge hole. The upper end of the gripper is hinged in the hinge hole through the pin. One end of the pull rope is connected to the inner wall of the gripper, and the other end extends through the hinge hole to the outside of the mounting base.

[0010] In one embodiment, a connecting lug is provided on the upper part of the inner wall of the gripper, and one end of the pull rope is connected to the connecting lug.

[0011] In one embodiment, a bearing is also provided on the pin, and the gripper is mounted on the pin via the bearing.

[0012] In one embodiment, the upper end of the mounting base is further provided with a fixing rod, and the fixing rod has a channel for a pull rope to pass through, the pull rope extending through the channel to the outside of the fixing rod.

[0013] Specifically, the channel includes a guide section and an outlet section. The outlet section is cylindrical, and the guide section is conical. The upper end of the guide section is connected to the outlet section, and the lower end is flared. The pull rope enters the fixed rod through the guide section.

[0014] Specifically, the number of pull ropes is the same as the number of grippers, and the upper ends of two or more pull ropes are twisted together.

[0015] Beneficial effects: The clamping device of this utility model uses the weight of the ball to automatically open the clamping jaws, which can effectively improve the accuracy of the ball's landing point. At the same time, the use of the pull rope structure is also more conducive to clamping, making the operation more convenient.

[0016] Meanwhile, the bottom of the cavity in this application is conical, which can accommodate spheres of different sizes. When different sizes of spheres are needed for drop tests, there is no need to change the clamps, which further improves the convenience of testing. Attached Figure Description

[0017] Figure 1 This is a sectional view of the clamping device of this application;

[0018] Figure 2 This is a top view of the clamping device.

[0019] In the figure: 1. Mounting base, 11. Hinge hole, 12. Pin, 2. Clamping claw, 21. Connecting lug, 3. Pull rope, 4. Fixing rod, 41. Channel, 411. Exit part, 412. Guide part. Detailed Implementation

[0020] The present application will be further described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without making creative changes are within the protection scope of the present application.

[0021] This application provides a ball-releasing clamping device, including a mounting base 1.

[0022] The gripper 2 is hinged to the bottom of the mounting base 1 and is used to grip and release the ball 100;

[0023] Pull rope 3, which is connected to the gripper 2. Pulling the pull rope 3 tightens the gripper 2 and keeps it in a clamping state. Releasing the pull rope 3 releases the gripper 2.

[0024] The number of grippers 2 is two or more, the two or more grippers 2 have the same structure, and the inner walls of the two or more grippers 2 enclose a cavity for accommodating the sphere 100, the bottom of the cavity being conical.

[0025] like Figure 1 and 2 As shown, there are four grippers 2. The cone-shaped cavity formed by the grippers 2 can accommodate spheres 100 of different sizes. Figure 1 The sphere 100 shown by the dashed line is one of two spheres 100 of different sizes than the sphere 100 shown by the solid line, meeting different testing needs without requiring the clamps to be changed. In use, the mounting base 1 can be fixed above the test bench. When installing the sphere 100, loosen the pull rope 3 to open the clamps 2 and place the sphere 100 inside. Tighten the pull rope 3 to hold the sphere 100 in place. During testing, simply loosen the pull rope 3; the sphere 100, under its own weight, opens the clamps 2 and falls freely. The four identical clamps 2 ensure that the landing point is basically aligned with the vertical line where the center of the sphere 100 is located, improving the accuracy of the landing point. Of course, the number of clamps 2 is not limited to four; it can be set to two or more, such as three clamps 2.

[0026] When performing drop ball tests on the glass used in photovoltaic glass modules, the commonly used spheres 100 typically weigh 227g, 535g, and 1040g. All of these can be tested using the aforementioned clamps without needing to be changed. The weight of these three types of spheres 100 is sufficient to open the clamps 2 under their own weight. Furthermore, the clamps 2 can be made of lightweight materials, such as aluminum, or have lightweight and weight-reducing structures, such as hollow or openwork designs, to reduce the weight of the clamps 2. This further ensures that when using other smaller spheres 100, the clamps 2 can also be opened under their own weight to achieve free fall.

[0027] Specifically, such as Figure 1 As shown, the mounting base 1 has a through hinge hole 11, and a pin 12 is disposed within the hinge hole 11. The upper end of the gripper 2 is hinged within the hinge hole 11 via the pin 12. One end of the pull rope 3 is connected to the inner wall of the gripper 2, and the other end extends through the hinge hole 11 to the outside of the mounting base 1. In this embodiment, the hinge hole 11 is not only a mounting space for hinged gripper 2, but also a space for pull rope 3 to pass through, simplifying the structure. Moreover, since the pull rope 3 directly passes through the hinge hole 11 and connects to the inner wall of the gripper 2, the pull rope 3 is not exposed to the outside, avoiding the influence of external factors on the pull rope 3.

[0028] In one embodiment, such as Figure 1As shown, in order to facilitate the connection between the pull rope 3 and the gripper 2, a connecting ear 21 is provided on the upper part of the inner wall of the gripper 2, and one end of the pull rope 3 is connected to the connecting ear 21.

[0029] In one embodiment, to further avoid the impact of friction on the landing accuracy of the gripper 2, a bearing is also provided on the pin 12, and the gripper 2 is mounted on the pin 12 via the bearing (not shown in the figure).

[0030] In one embodiment, such as Figure 1 and 2 As shown, in order to facilitate the operation of the pull rope 3, a fixing rod 4 is also provided at the upper end of the mounting base 1. The fixing rod 4 is provided with a channel 41 for the pull rope 3 to pass through, and the pull rope 3 extends through the channel 41 to the outside of the fixing rod 4.

[0031] Specifically, such as Figure 1 As shown, the channel 41 includes a guide portion 412 and an outlet portion 411. The outlet portion 411 is cylindrical, and the guide portion 412 is conical. The upper end of the guide portion 412 is connected to the outlet portion 411, and the lower end is flared. The pull rope 3 enters the fixed rod 4 through the guide portion 412. Since the pull rope 3 is always in an inclined state, the conical design of the guide portion 412 can effectively guide the pull rope 3 into the outlet portion 411, forming a natural transition. This reduces the impact of different forces exerted on the gripper 2 by multiple pull ropes 3 due to friction, further improving accuracy.

[0032] Furthermore, such as Figure 1 As shown, the number of pull ropes 3 is the same as the number of grippers 2, and the upper ends of two or more pull ropes 3 are twisted together. During operation, only the twisted pull ropes 3 need to be operated, without the need to operate multiple pull ropes 3 simultaneously, which facilitates operation, improves the consistency of the movement of the grippers 2, and helps to improve accuracy.

[0033] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this application.

Claims

1. A drop ball released clamp apparatus, characterized by, The installation base (1) is provided with a through hinge hole (11), a pin shaft (12) is arranged in the hinge hole (11), the upper end of the clamping jaw (2) is hingedly arranged in the hinge hole (11) through the pin shaft (12), one end of the pull rope (3) is connected with the inner wall of the clamping jaw (2), and the other end of the pull rope (3) extends to the outside of the installation base (1) through the hinge hole (11). The upper part of the inner wall of the clamping jaw (2) is provided with a connecting lug (21), and one end of the pull rope (3) is connected with the connecting lug (21). The pin shaft (12) is further provided with a bearing, and the clamping jaw (2) is installed on the pin shaft (12) through the bearing. The upper end of the installation base (1) is further provided with a fixed rod (4), the fixed rod (4) is provided with a channel (41) for the pull rope (3) to pass through, and the pull rope (3) extends to the outside of the fixed rod (4) through the channel (41).

2. The drop ball released clamp apparatus of claim 1, wherein, The channel (41) comprises a guide portion (412) and a through portion (411), the through portion (411) is in a cylindrical shape, the guide portion (412) is in a tapered shape, the upper end of the guide portion (412) is connected with the through portion (411), the lower end of the guide portion (412) is in an expanded shape, and the pull rope (3) enters the fixed rod (4) from the guide portion (412).

3. The drop ball released clamp apparatus of claim 2, wherein, The number of the pull ropes (3) is consistent with the number of the clamping jaws (2), and the upper ends of two or more pull ropes (3) are twisted together.

4. A drop ball released clamp apparatus according to claim 2 or 3, wherein, ​ 5. The drop ball released clamp apparatus of claim 1, wherein, ​ 6. The drop ball released clamp apparatus of claim 5, wherein, ​ 7. The drop ball released clamp apparatus of claim 1, wherein, ​

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