Plastic shell impact resistance detection device

Abstract

The utility model discloses a device for detecting the impact resistance of a plastic shell, which relates to the technical field of lead-acid storage batteries and comprises an iron ball, a groove body with an upward opening and a warping plate horizontally arranged in the groove body, a plastic shell clamping station is formed at one end of the top of the groove body, one end part of the warping plate is spherical and is positioned right below the plastic shell clamping station, and the other end part of the warping plate is positioned right below the plastic shell clamping station. A blocking rod matched with the warping plate is arranged above the other end of the warping plate. According to the utility model, no complex machine is needed, the operation is simple, the detection efficiency is greatly improved, and the overall practicability is also greatly improved; meanwhile, the position of the plastic shell is effectively fixed when the plastic shell is detected, so that the overall operation safety is greatly improved, and the accuracy of a detection result is also greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid batteries, in particular to a plastic shell impact resistance detection device. Background Art

[0002] The plastic shell is an important component of lead-acid batteries (hereinafter referred to as batteries). When the finished batteries are used in actual applications, various collisions will occur. Even when the batteries are used normally, the plastic shell will crack due to the continuous expansion of the positive grid. Therefore, the plastic shell of the battery must have a certain toughness. If the toughness is not good, the plastic shell will be brittle and easy to break, especially in the low temperature environment in the north, when the brittleness increases, the proportion of plastic shell cracking will increase significantly.

[0003] Traditionally, the industry uses the impact resistance method to test the toughness of battery plastic shells. Specifically, after placing the plastic shell on a load-bearing component (including a horizontal ground), an iron ball is allowed to fall freely from a specified height onto the plastic shell to observe whether the plastic shell is cracked. However, in actual operation, it is found that after the iron ball hits the plastic shell, especially the small-sized plastic shell, the plastic shell is easily shaken off the load-bearing component due to its low mass. At the same time, the iron ball is also easily bounced, causing a secondary impact on the plastic shell, which seriously affects the test results.

[0004] In the prior art, there are related studies on the impact resistance test of battery plastic shells, such as patent application CN211403855U, a plastic shell impact resistance test device, etc., which can avoid the iron ball from impacting the plastic shell multiple times after bouncing up and affecting the test results to a certain extent through the coordination of components such as electromagnetic adsorption mechanisms, thereby relatively improving the accuracy of the test results. However, the prior art often has a complex structure and cumbersome operation procedures, resulting in general detection efficiency and limited overall practicality. At the same time, most of the prior art still has the problem that the plastic shell, especially the small-sized plastic shell, is shaken away from the load-bearing component due to the impact of the iron ball during the test process, so that the operation safety is affected and the improvement of the accuracy of the test results is still limited.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide a plastic shell impact resistance detection device to solve the technical problems that the prior art proposed in the above background technology is often complex in structure and cumbersome in operation process, resulting in general detection efficiency and limited overall practicality, and the plastic shell in the prior art is easily shaken away from the load-bearing components when impacted, and the improvement of the accuracy of the detection result is still limited.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A plastic shell impact resistance detection device comprises an iron ball and an upwardly open trough body, the trough body is made of hard plastic and a plastic shell clamping station is formed at one end of the top, a seesaw is also horizontally arranged in the trough body, the seesaw is a steel seesaw, one end of the seesaw is spherical and is located directly below the plastic shell clamping station, a blocking rod matching with it is provided above the other end of the seesaw, the blocking rod is a gate-shaped structure with an opening facing downward and is horizontally fixed to the top of the other end of the trough body, and the length direction of the blocking rod is perpendicular to the length direction of the seesaw.

[0009] Furthermore, a cylindrical seesaw axis is horizontally fixed between the inner walls on both sides of the trough body, the seesaw and the seesaw axis are distributed in a cross shape and the seesaw can be rotatably arranged around the seesaw axis, the top sides of one end of the trough body are also horizontally extended outward to form a supporting bottom plate for placing the plastic shell, and the two sides of the same end of the trough body are horizontally extended inward to form a limiting groove for accommodating the spherical end of the seesaw and allowing it to rise and fall, the limiting groove is a rectangular structure and the opening is arranged toward the other end of the interior of the trough body, and a cover plate for covering the plastic shell is also horizontally arranged above the supporting bottom plate, and the cover plate can be raised and lowered relative to the supporting bottom plate.

[0010] Furthermore, the cover plate is provided with a screw lifting assembly cooperating therewith, and the screw lifting assembly includes two screws arranged vertically and in parallel, and circular holes are respectively opened at both ends of the cover plate and the supporting base plate, and the two screws pass through the two ends of the cover plate and the supporting base plate through the circular holes respectively, and each of the screws is provided with locking nuts cooperating therewith at the upper and lower ends, and the seesaw is composed of a tilting portion I with a spherical end, and a transition portion and a tilting portion II which are connected to the other end of the tilting portion I in an integral manner in a straight line, the tilting portion I is in the shape of a round rod, and the tilting portion II is in the shape of a horizontally arranged plate, and the seesaw axis is passed through the inner side of the transition portion.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with an iron ball and a trough body open upward, and a seesaw is horizontally arranged in the trough body. A plastic shell clamping station is formed by arranging one end of the top of the trough body. One end of the seesaw is spherical and located directly below the plastic shell clamping station. A blocking rod is arranged above the other end of the seesaw. On the basis of solving the problem of secondary impact of the iron ball on the plastic shell, the structure is effectively simplified and the detection efficiency is improved. Specifically, based on the lever principle of the seesaw, the upward impact of the spherical end of the seesaw replaces the downward impact of the iron ball, and the other end of the seesaw that will tilt upward under the reaction force is upper-limited to prevent the spherical end of the seesaw from tilting again. The whole process of tilting is without complicated mechanism and simple to operate, which greatly improves the overall practicality. The coordinated setting of the plastic shell clamping station can realize the effective fixation of the position of the plastic shell when being tested, and avoid the plastic shell being shaken out of the slot during the testing process, which not only greatly improves the overall operation safety, but also avoids the test results being affected, thereby greatly improving the accuracy of the test results. In addition, when the contact surface of the spherical end of the seesaw of the utility model is tangent to the plastic shell, it can ensure that the force generated by each collision with the plastic shell is perpendicular to the surface of the plastic shell, thereby more realistically simulating the traditional free fall of an iron ball, which further improves the accuracy of the test results.

[0013] 2. In the utility model, on the basis of a support bottom plate for placing the plastic shell that is horizontally extended outward on both sides of the top of one end of the trough body, a cover plate and a screw lifting assembly composed of a screw and a locking nut are arranged in coordination to fully ensure the positioning effect of the plastic shell clamping station on the plastic shell, further improve the operation safety and the accuracy of the test results, while ensuring the realization of the height adjustment of the plastic shell clamping station, so that the plastic shell clamping station can be suitable for plastic shells of different specifications, thereby further improving the overall practicality.

[0014] 3. The seesaw in the utility model includes a lift portion I, a transition portion and a lift portion II. The utility model has a seesaw shaft horizontally fixed between the inner walls of both sides of the groove body. The seesaw shaft is passed through the inner side of the transition portion, and both sides of one end of the groove body extend horizontally inward to form a matching arrangement of a limited groove, which ensures that when the seesaw is hit by an iron ball, its two ends rise and fall in the groove body, and the spherical end hits the plastic shell upward, thereby further improving the detection efficiency and detection effect. On this basis, the lift portion II is a horizontally arranged plate-shaped matching arrangement, which fully guarantees the contact effect between the iron ball and the seesaw, which further improves the operation safety while further ensuring the detection efficiency and detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the tank body of the utility model;

[0017] Figure 3 This is a schematic diagram of the working principle of the screw rod of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the connection and installation of the seesaw and the seesaw shaft of the utility model;

[0019] In the figure: 1, trough body, 2, seesaw, 21, tilting part I, 22, transition part, 23, tilting part II, 3, seesaw shaft, 4, blocking rod, 5, supporting bottom plate, 6, limiting groove, 7, cover plate, 8, screw rod, 9, locking nut, 10, round hole. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further specifically described below through embodiments and drawings.

[0021] See also Figure 1 to Figure 4 , which shows a plastic shell impact resistance detection device, including an iron ball and a trough body 1, the trough body 1 is a hard plastic trough body, the trough body 1 is open upward and a seesaw 2 is arranged inside, the seesaw 2 is a steel seesaw and is formed by a tilting portion Ⅰ21, a transition portion 22 and a tilting portion Ⅱ23 connected in a straight line, a cylindrical seesaw shaft 3 is passed through the transition portion 22, the two ends of the seesaw shaft 3 are respectively fixed on the inner walls of the trough body 1 on both sides and are arranged in a cross shape with the seesaw 2 through the transition portion 22, the tilting portion Ⅱ23 is in the shape of a horizontally arranged plate, the tilting portion Ⅰ21 is in the shape of a round rod, and the end of the tilting portion Ⅰ21 away from the transition portion 22 is in the shape of a ball with a smooth surface.

[0022] The two ends of the cover plate 7 are respectively provided with two screws 8 vertically penetrated, and the two screws 8 respectively pass through the two ends of the support bottom plate 5 at the same time. Both ends of the cover plate 7 and the support bottom plate 5 are respectively provided with round holes 10 for the corresponding screws 8 to pass through. Each screw 8 is provided with locking nuts 9 threadedly connected with it at the upper and lower ends. The cover plate 7 can be raised and lowered relative to the support bottom plate 5 by the screws 8 and the locking nuts 9. The support bottom plate 5 and the cover plate 7 are jointly surrounded by the screws 8 to form a plastic shell clamping station. The two sides of the same end of the trough body 1 are also horizontally extended inward to form a limiting groove 6 with a rectangular structure. The limiting groove 6 is located directly below the plastic shell clamping station and the opening is arranged toward the other end of the inside of the trough body 1. The spherical end of the lift portion Ⅰ21 extends into the limiting groove 6 and is raised and lowered in the limiting groove 6 through the seesaw shaft 3.

[0023] Furthermore, a blocking rod 4 with a gate-shaped structure and an opening facing downward is horizontally fixed to the top of the other end of the trough body 1 . The blocking rod 4 is located above the tilting portion II 23 and its length direction is perpendicular to the length direction of the rocker 2 .

[0024] The working principle and workflow of the utility model are as follows:

[0025] First, place the plastic shell (not shown) to be tested under the cover plate 7, first pass the screw 8 through the circular holes 10 of the cover plate 7 and the supporting bottom plate 5, and then tighten the locking nut so that the plastic shell is pressed by the cover plate 7;

[0026] Then, an iron ball (not shown) is placed above the raised portion II 23 and raised to a specified height (the height is set as required);

[0027] Finally, the iron ball is allowed to fall freely onto the tilting portion II 23. At this time, the tilting portion II 23 is pressed downward, and the spherical end of the tilting portion I 21 tilts upward to hit the plastic shell.

[0028] During the whole process, when the spherical end of the lift part I21 tilts upward and hits the plastic shell, affected by the reaction force, the spherical end of the lift part I21 drops and the lift part II23 tilts upward. When the lift part II23 tilts upward, the blocking rod 4 blocks the lift part II23, so that the subsequent force will not be sufficient to cause the spherical end of the lift part I21 to tilt upward again, and thus the spherical end of the lift part I21 will not hit the plastic shell again. Ultimately, it not only solves the problem of the plastic shell being subjected to secondary impact during the detection process, but also improves the detection efficiency and the accuracy of the detection results.

Claims

1. A plastic shell impact resistance detection device, comprising an iron ball, characterized in that: It also includes an upwardly open trough body and a seesaw horizontally arranged in the trough body. A plastic shell clamping station is formed at one end of the top of the trough body. One end of the seesaw is spherical and located directly below the plastic shell clamping station. A blocking rod cooperating with the seesaw is provided above the other end of the seesaw.

2. A plastic shell impact resistance detection device according to claim 1, characterized in that: The top sides of one end of the trough body extend horizontally outward to form a supporting bottom plate for placing the plastic shell, and the two sides of the same end of the trough body extend horizontally inward to form a limiting groove for accommodating the spherical end of the seesaw and allowing it to rise and fall, and the limiting groove has a rectangular structure and an opening is arranged toward the other end of the interior of the trough body.

3. A plastic shell impact resistance detection device according to claim 2, characterized in that: A cover plate for covering the plastic shell is horizontally and parallelly arranged above the supporting bottom plate, and the cover plate can be raised and lowered relative to the supporting bottom plate.

4. A plastic shell impact resistance detection device according to claim 3, characterized in that: The cover plate is provided with a screw lifting assembly that cooperates with it. The screw lifting assembly includes two screws arranged vertically and in parallel. The two screws pass through the two ends of the cover plate and the supporting base plate respectively and simultaneously. Each of the screws is provided with locking nuts that cooperate with it at the upper and lower ends.

5. A plastic shell impact resistance detection device according to claim 4, characterized in that: Both ends of the cover plate and the supporting bottom plate are respectively provided with round holes for two screw rods to pass through.

6. A plastic shell impact resistance detection device according to claim 1, characterized in that: The blocking rod is in a gate-shaped structure with its opening facing downward and is horizontally fixed to the top of the other end of the trough body. The length direction of the blocking rod is perpendicular to the length direction of the seesaw.

7. A plastic shell impact resistance detection device according to claim 1, characterized in that: A cylindrical seesaw shaft is also horizontally fixed between the inner walls on both sides of the trough body. The seesaw and the seesaw shaft are distributed in a cross shape and the seesaw can be rotatably arranged around the seesaw shaft.

8. A plastic shell impact resistance detection device according to claim 7, characterized in that: The seesaw is composed of a tilting portion I with a spherical end, and a transition portion and a tilting portion II which are connected to the other end of the tilting portion I in a straight line in sequence and in an integral manner. The tilting portion I is in the shape of a round rod, and the tilting portion II is in the shape of a horizontally arranged plate. The seesaw axis is passed through the inner side of the transition portion.

9. A plastic shell impact resistance detection device according to claim 1, characterized in that: The seesaw is a steel seesaw.

10. The molded case impact resistance detection device according to claim 1, characterized in that: The tank body is a hard plastic tank body.

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