A fixing device for high humidity pressure holding partition test

Abstract

This utility model relates to a fixing device for high humidity pressure-holding partition testing, comprising a threaded shaft, a first pressure plate, a second pressure plate, a set of samples, a sliding rod, a fixing seat, a base, and a pressure sensor. The threaded shaft is axially mounted on the first pressure plate via a limiting component. The fixing seat has a sliding groove inside, which is slidably connected to the outer surface of the sliding rod. A pressure sensor is connected to one side of the sliding rod. The set of samples contains multiple specimens. A guide groove is provided on one side of the first pressure plate, and a guide spring is fitted inside the guide groove. The inner diameter of the guide spring is consistent with the circumcircle of the set of samples. The beneficial effect of this utility model is that by placing the set of samples inside the guide spring, since the inner diameter of the guide spring is consistent with the circumcircle of the set of samples, the guide spring can align and fix the four corners of the specimens inside the sample, thereby ensuring that multiple specimens remain on the same horizontal plane, resulting in balanced force and not affecting the testing accuracy.

Description

Technical Field

[0001] This application relates to the field of high humidity pressure-holding separator technology, and specifically to a fixing device for testing high humidity pressure-holding separators. Background Technology

[0002] High-humidity pressure-holding separators are high-performance insulating materials manufactured through a special process. Their biggest feature is that they can maintain stable electrical performance in humid environments, and due to their dense structure, they have good mechanical strength and pressure resistance. They are mainly used in valve-regulated sealed lead-acid batteries. In order to compare the performance of different separator products and ensure the quality of the final battery product, high-humidity pressure-holding separators need to be tested, which requires the use of a fixing device.

[0003] The existing Chinese patent document with publication number CN 214427249 U discloses the working principle as follows: 1. Cut 20 50mm*50mm samples and stack them neatly together as a group. Prepare two groups of samples and place each group of 20 samples neatly into a small sample bag as the sample to be clamped; 2. Place the first group of samples vertically between the first and second pressure plates. When the tester places the sample to be clamped between the first and second pressure plates, the sample contains multiple small square samples. The square samples may not be neatly stacked. The force on the sample is different when it is neatly stacked and when it is not neatly stacked, which makes the force on the sample uneven and thus affects the test accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a fixing device for high humidity pressure-holding partition testing, which solves the technical problem that uneven force distribution caused by improper sample stacking affects the testing accuracy.

[0005] The technical solution of this utility model is as follows: A fixing device for testing a high humidity pressure-holding partition includes: a base, on which a horizontally and coaxially arranged push plate mechanism and a force measuring mechanism are installed. The push plate mechanism includes a first pressure plate and a screw that is axially stopped and circumferentially rotated with the first pressure plate. The first pressure plate and the screw are coaxially arranged, and the screw is screwed into a threaded hole in the base. The force measuring mechanism includes a second pressure plate and a sliding rod that is coaxially fixed with it. The sliding rod is slidably assembled in a guide hole in the base. The end of the sliding rod away from the second pressure plate presses against a pressure sensor. The pressure sensor is installed on the base. A set of samples to be tested is provided between the first pressure plate and the second pressure plate. The set of samples includes multiple square plate-shaped sample plates. Its characteristic is that... The first pressure plate has a first annular groove on its side closest to the sample. The first annular groove is coaxial with the first pressure plate. A spring mounting ring is fixed on the base. The spring mounting ring is located between the first and second pressure plates and is close to the second pressure plate. The side of the spring mounting ring closest to the first pressure plate has a second annular groove. The second annular groove is coaxial with the second pressure plate. The spring mounting ring has a through hole coaxial with the first pressure plate to allow the sample to pass through. A guide helical spring is installed between the first and second annular grooves. One end of the guide helical spring is installed in the first annular groove and the other end is installed in the second annular groove. The guide helical spring is positioned by the first and second annular grooves. The sample is installed in the inner hole of the guide helical spring, and the sample plates are aligned by the inner hole.

[0006] The beneficial effects of this technical solution are as follows: When using a fixing device for high humidity pressure-holding partition testing, a group of samples are placed inside the guide spiral spring. The guide spiral spring can align and fix the four corners of multiple sample plates, thereby ensuring that multiple samples are kept on the same horizontal plane, thus making the force balanced and not affecting the test accuracy.

[0007] Preferably, the guide spring is made of carbon steel and has a square cross-section.

[0008] The beneficial effects of this technical solution are: by using a guide spring with a square cross-section, square samples can be aligned and fixed.

[0009] Preferably, the first pressure plate and the screw that is axially stopped and circumferentially rotated with the first pressure plate include a limiting groove and a limiting block. One side of the limiting groove is fixedly connected to one side of the first pressure plate, and one side of the limiting block is fixedly connected to one side of the threaded shaft. The inside of the limiting groove is rotatably connected to the outer surface of the limiting block.

[0010] Preferably, the width of the first annular groove 201 is adapted to the guide helical spring 9. Attached Figure Description

[0011] Figure 1 This is a cross-sectional structural diagram of the present invention; Figure 2 This is a schematic diagram of the wire spring and sample installation structure of this utility model. Figure 3 This is a schematic diagram of the guide spring structure of this utility model.

[0012] In the figure: 1-base, 101-threaded hole, 2-first pressure plate, 201-first annular groove, 3-screw, 301-limiting block, 4-second pressure plate, 5-sliding rod, 6-pressure sensor, 7-a set of samples, 8-spring mounting ring seat, 801-second annular groove, 802-through hole, 9-guide helical spring. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0016] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0017] A specific embodiment of the fixing device for high humidity pressure-holding partition testing according to this utility model is as follows: Figure 1As shown, a fixing device for high humidity pressure-holding partition testing includes: a base 1, on which a horizontally and coaxially arranged push plate mechanism and a force measuring mechanism are mounted. The push plate mechanism includes a first pressure plate 2 and a screw 3 that is axially stopped and circumferentially rotated with the first pressure plate 2. The first pressure plate 2 and the screw 3 are coaxially arranged, and the screw 3 is screwed into a threaded hole 101 in the base 1. The force measuring mechanism includes a second pressure plate 4 and a sliding rod 5 coaxially fixed therewith. The sliding rod 5 is slidably assembled in a guide hole in the base 1. The end of the sliding rod 5 away from the second pressure plate 4 presses against a pressure sensor 6, which is mounted on the base 1. A set of samples 7 to be tested is provided between the first pressure plate 2 and the second pressure plate 4. The set of samples 7 includes multiple square plate-shaped sample plates. The first annular groove 201 is provided on the side of the first pressure plate 2 near the set of samples 7. The first annular groove 201 is coaxial with the first pressure plate 2. A spring mounting ring seat is fixed on the base 1. 8. The spring mounting ring seat 8 is located between the first pressure plate 2 and the second pressure plate 4 and is positioned close to the second pressure plate 4. The side of the spring mounting ring seat 8 closest to the first pressure plate 2 is provided with a second annular groove 801. The second annular groove 801 is coaxially arranged with the second pressure plate 4. The spring mounting ring seat 8 is provided with a through hole 802 coaxial with the first pressure plate 2 for the sample to pass through. A guide spiral spring 9 is installed between the first annular groove 201 and the second annular groove 801. One end of the guide spiral spring 9 is installed in the first annular groove 201 and the other end is installed in the second annular groove 801. The guide spiral spring 9 is positioned by the first pressure plate 2 and the second annular groove 801. A group of samples 7 are installed in the inner hole of the guide spiral spring 9. The inner hole is used to align the sample plates. Based on the existing working process, this utility model adds a positioning step of the guide spiral spring 9 to solve the alignment problem. The inner diameter of the guide spiral spring 9 keeps multiple samples 10 in an aligned state.

[0018] like Figure 3 As shown, the guide helical spring 9 is made of carbon steel and has a square cross-section. By using the guide spring with a square cross-section, the square sample can be aligned and fixed.

[0019] The first pressure plate and the screw that is axially stopped and circumferentially rotated with the first pressure plate include a limiting groove and a limiting block 301. One side of the limiting groove is fixedly connected to one side of the first pressure plate 2, and one side of the limiting block 301 is fixedly connected to one side of the threaded shaft 1. The inside of the limiting groove 202 is rotatably connected to the outer surface of the limiting block 301.

[0020] The width of the first annular groove 201 is adapted to the guide helical spring 9.

[0021] In use, a set of samples 7 is placed inside the guide helical spring 9. Since the inner diameter of the guide helical spring 9 is consistent with the outer tangent circle of the set of samples 4, the guide helical spring 9 can align and fix the four corners of the sample inside the sample 5, thereby ensuring that multiple samples are kept on the same horizontal plane, thus making the force balanced and not affecting the test accuracy. Through the action of the screw 3, when the screw 3 drives the first pressure plate 2 to move, it will drive the guide helical spring 9 to move. The movement of the guide helical spring 9 drives the set of samples 4 to move. When the guide helical spring 9 moves to the second annular groove 801 on the spring mounting ring seat 8, the force of the guide helical spring 9 is borne by the spring mounting ring seat 8 and will not act on the second pressure plate 4. Therefore, the pressure sensor 6 will not sense the force of the guide helical spring 9. Only the force of the first pressure plate 2 acts on the set of samples 7, ensuring the accuracy of the test.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A fixing device for high humidity pressure-holding partition testing, comprising: A base is provided, on which a horizontally and coaxially arranged push plate mechanism and a force measuring mechanism are mounted. The push plate mechanism includes a first pressure plate and a screw that is axially stopped and circumferentially rotated with the first pressure plate. The first pressure plate and the screw are coaxially arranged, and the screw is screwed into a threaded hole in the base. The force measuring mechanism includes a second pressure plate and a sliding rod that is coaxially fixed with it. The sliding rod is slidably assembled in a guide hole in the base, and the end of the sliding rod away from the second pressure plate presses against a pressure sensor, which is mounted on the base. A set of samples to be tested is provided between the first and second pressure plates. The set of samples includes multiple square plate-shaped sample plates. The characteristic feature is that the side of the first pressure plate closest to the sample... A first annular groove is provided, coaxial with a first pressure plate. A spring mounting ring seat is fixed on the base, located between the first and second pressure plates and close to the second pressure plate. A second annular groove is provided on the side of the spring mounting ring seat closest to the first pressure plate, coaxial with the second pressure plate. The spring mounting ring seat has a through hole coaxial with the first pressure plate for the sample to pass through. A guide helical spring is installed between the first and second annular grooves, with one end installed in the first annular groove and the other end installed in the second annular groove. The guide helical spring is positioned by the first and second annular grooves. The sample is installed in the inner hole of the guide helical spring, and the sample plates are aligned by the inner hole.

2. The fixing device for high humidity pressure-holding partition testing according to claim 1, characterized in that, The guide spring is made of carbon steel and has a square cross-section.

3. The fixing device for high humidity pressure-holding partition testing according to claim 1, characterized in that, The first pressure plate and the screw that is axially stopped and circumferentially rotated with the first pressure plate include a limiting groove and a limiting block. One side of the limiting groove is fixedly connected to one side of the first pressure plate, and one side of the limiting block is fixedly connected to one side of the threaded shaft. The inside of the limiting groove is rotatably connected to the outer surface of the limiting block.

4. The fixing device for high humidity pressure-holding partition testing according to claim 1, characterized in that, The width of the first annular groove (201) is adapted to the guide helical spring 9.

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