Falling acupuncture test device

Abstract

The embodiment of the utility model provides a drop acupuncture test device. The testing device comprises a pricking needle; the clamping piece is located at the top of the pricking needle in the first direction, the clamping piece is provided with a through hole in the first area, the sample is fixed in the first area, and the orthographic projection of the first area in the first direction and the orthographic projection of the pricking needle in the first direction are at least partially overlapped; the lifting assembly is movably connected with the clamping piece, the lifting assembly is used for controlling the distance between the clamping piece and the pricking needle in the first direction, and under the condition that the lifting assembly controls the distance between the clamping piece and the pricking needle in the first direction to reach a preset distance, the clamping piece can freely fall towards the pricking needle. Therefore, the speed of the sample falling to the pricking needle can be controlled, and the test requirements of different speeds of the sample falling to the pricking needle can be met, so that the application scene of the falling pricking test device is not limited.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a drop and puncture testing device. Background Art

[0002] In the related applications of battery packs, it is inevitable that battery packs are used in environments that need to withstand collisions. For example, when a battery pack is used in a vehicle, with the collision of the vehicle, there is a high probability that the battery pack will fall. Based on relevant standards, it is necessary to test the situation of the battery pack being punctured after falling to judge the performance of the battery pack.

[0003] Currently, the drop and puncture testing device for battery packs usually uses an extrusion device to replace the puncture fixture to replace the battery pack, and this process is mostly a horizontal device.

[0004] However, due to the limitation of the structure of the above drop and puncture testing device, it can only meet the drop and puncture testing at a speed of less than 100 mm / s, and it is difficult to control the speed, which further limits the application scenarios of the drop and puncture testing. Summary of the Utility Model

[0005] In order to solve or partially solve the above problems, the utility model discloses a drop and puncture testing device to solve the problem that it is difficult to control the speed in the existing drop and puncture testing.

[0006] To solve the above problems, an embodiment of the utility model provides a drop and puncture testing device for the drop and puncture testing of samples. The drop and puncture testing device has a first direction, a second direction and a third direction that intersect pairwise;

[0007] Comprising:

[0008] A puncture needle;

[0009] A clamping member, the clamping member is located at the top of the puncture needle in the first direction. The clamping member is provided with a through hole in a first area, and the sample is fixed in the first area. The orthographic projection of the first area along the first direction and the orthographic projection of the puncture needle in the first direction at least partially overlap;

[0010] A lifting assembly, the lifting assembly is movably connected to the clamping member, and the lifting assembly is used to control the distance between the clamping member and the puncture needle in the first direction. When the distance between the clamping member and the puncture needle in the first direction controlled by the lifting assembly reaches a preset distance, the clamping member can freely fall towards the direction of the puncture needle.

[0011] Optionally, the drop and puncture testing device further comprises a guiding assembly;

[0012] The guiding assembly includes at least one guiding column extending along the first direction, at least one position at the edge of the clamping member is slidably connected to the guiding column, and the clamping member can slide along the extending direction of the guiding column.

[0013] Optionally, at least one position at the edge of the clamping member is provided with a sliding ring;

[0014] The sliding ring is sleeved on the guiding column.

[0015] Optionally, the clamping member is made of a metal material, the lifting assembly includes the guiding column, and the guiding column is made of an electromagnetic material;

[0016] The drop needle puncture test device further includes a control assembly, the control assembly is electrically connected to the guiding column. When the clamping member slides to a preset position along the extending direction of the guiding column, the control assembly controls the guiding column to be in an energized state. When the clamping member is in free fall, the control assembly controls the guiding column to be in a de-energized state.

[0017] Optionally, a limiting member is provided at a position of the guiding column close to the end of the needle;

[0018] The limiting member extends in the second direction towards the needle. When the sample contacts the needle, the bottom of the clamping member is lapped on the limiting member.

[0019] Optionally, the lifting assembly includes a lifting cable, a winding member, a driving member and an electromagnetic member;

[0020] The first end of the lifting cable is connected to the clamping member through the electromagnetic member, the second end of the lifting cable is wound around the winding member, the driving member is electrically connected to the winding member, and the driving member drives the winding member to rotate;

[0021] When the driving member drives the winding member to rotate in the first rotation direction, the winding amount of the lifting cable on the winding member increases, the clamping member moves away from the needle, and the distance between the clamping member and the needle in the first direction increases. When the driving member drives the winding member to rotate in the second rotation direction, the winding amount of the lifting cable on the winding member decreases, the clamping member moves towards the needle, and the distance between the clamping member and the needle in the first direction decreases, where the first rotation direction and the second rotation direction are two opposite rotation directions;

[0022] When the electromagnetic member is energized, the electromagnetic member magnetically attracts the clamping member. When the electromagnetic member is de-energized, the electromagnetic member has no magnetic attraction on the clamping member.

[0023] Optionally, the clamping member includes a clamping plate;

[0024] A plurality of screw holes are formed in the clamping plate, and the plurality of screw holes are arranged in a matrix.

[0025] Optionally, the drop pin testing device further includes a box body;

[0026] The pin, the clamping member and the lifting assembly are all installed in the inner cavity of the box body;

[0027] At least one side wall of the box body is provided with a transparent observation window, and at least one side wall of the box body is provided with an air outlet.

[0028] Optionally, the box body includes a bottom plate, and the drop pin testing device further includes a fixing seat;

[0029] The pin is detachably connected to the surface of the fixing seat facing the clamping member, and the surface of the fixing seat away from the clamping member is slidably connected to the bottom plate.

[0030] Optionally, the drop pin testing device further includes a temperature acquisition module, a voltage acquisition module, an impact force acquisition module, a speed acquisition module and a video acquisition module, and the temperature acquisition module, the voltage acquisition module, the impact force acquisition module, the speed acquisition module and the video acquisition module are all electrically connected to the sample.

[0031] In the embodiment of the present invention, since the clamping member is located at the top of the pin in the first direction Z, the clamping member is provided with a through hole in the first area, the sample is fixed in the first area, and the positive projection of the first area along the first direction Z and the positive projection of the pin in the first direction Z at least partially overlap. Therefore, the sample can move synchronously with the clamping member. That is, when the sample reaches the pin with the clamping member, the pin can pass through the through hole in the first area and contact the sample to ensure the normal progress of the drop pin test. Also, since the lifting assembly is movably connected to the clamping member and the lifting assembly is used to control the distance between the clamping member and the pin in the first direction Z, when the distance between the clamping member and the pin in the first direction Z controlled by the lifting assembly reaches a preset distance, the clamping member can freely fall towards the direction of the pin, and the speed of the sample when it falls onto the pin is proportional to the initial height of the sample. Therefore, the distance between the clamping member and the pin in the first direction Z can be changed by the lifting assembly, and further the speed of the sample when it falls onto the pin can be changed. In summary, through the drop pin testing device provided by the embodiment of the present invention, the speed of the sample when it falls onto the pin can be controlled, and the test requirements for different speeds of the sample when it falls onto the pin can be met, so that the application scenario of the drop pin testing device is not limited. Description of the Drawings

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 is a schematic structural diagram of a drop and needle puncture test device provided by an embodiment of the present invention;

[0034] Figure 2 is a schematic internal structural diagram of a drop and needle puncture test device provided by an embodiment of the present invention;

[0035] Figure 3 is a schematic structural diagram of a clamping plate included in a drop and needle puncture test device provided by an embodiment of the present invention.

[0036] Explanation of reference numerals:

[0037] 1: Needle; 2: Clamping member; 21: Clamping plate; 211: Through hole; 222: Screw hole; 223: First region; 224: Sliding ring; 3: Lifting assembly; 31: Lifting cable; 32: Winding member; 33: Driving member; 34: Electromagnetic member; 4: Guiding assembly; 41: Guide post; 411: Limiting member; 5: Box body; 51: Transparent observation window; 52: Exhaust port; 53: Bottom plate; 6: Fixed seat; 7: Temperature acquisition module; 8: Voltage acquisition module; 9: Impact force acquisition module; 10: Speed acquisition module; 11: Video acquisition module; 12: Control assembly. Detailed implementation manners

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0039] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0040] Such as Figures 1 to 3As shown in the figure, a drop needle puncture test device is used for the drop needle puncture test of samples. The drop needle puncture test device has a first direction Z, a second direction X, and a third direction Y that intersect pairwise, and includes:

[0041] A needle 1.

[0042] A clamping member 2. The clamping member 2 is located at the top of the needle 1 in the first direction Z. The clamping member 2 is provided with a through hole 211 in a first area 223. The sample is fixed in the first area 223. The orthographic projection of the first area 223 along the first direction Z and the orthographic projection of the needle 1 in the first direction Z at least partially overlap.

[0043] A lifting assembly 3. The lifting assembly 3 is movably connected to the clamping member 2. The lifting assembly 3 is used to control the distance between the clamping member 2 and the needle 1 in the first direction Z. When the distance between the clamping member 2 and the needle 1 in the first direction Z controlled by the lifting assembly 3 reaches a preset distance, the clamping member 2 can freely fall towards the direction of the needle 1.

[0044] It can be seen from the above embodiments that in the embodiments of the present utility model, since the clamping member 2 is located at the top of the needle 1 in the first direction Z, the clamping member 2 is provided with a through hole 211 in the first area 223, the sample is fixed in the first area 223, and the orthographic projection of the first area 223 along the first direction Z and the orthographic projection of the needle 1 in the first direction Z at least partially overlap, the sample can be made to move synchronously with the clamping member 2. That is, when the sample reaches the needle 1 with the clamping member 2, the needle 1 can pass through the through hole 211 in the first area 223 and contact the sample, ensuring the normal progress of the drop needle puncture test. Also, since the lifting assembly 3 is movably connected to the clamping member 2, the lifting assembly 3 is used to control the distance between the clamping member 2 and the needle 1 in the first direction Z. When the distance between the clamping member 2 and the needle 1 in the first direction Z controlled by the lifting assembly 3 reaches a preset distance, the clamping member 2 can freely fall towards the direction of the needle 1, and the speed of the sample when it falls onto the needle 1 is proportional to the initial height of the sample. Therefore, the distance between the clamping member 2 and the needle 1 in the first direction Z can be changed by the lifting assembly 3, thereby changing the speed of the sample when it falls onto the needle 1. In summary, through the drop needle puncture test device provided by the embodiments of the present utility model, the speed of the sample when it falls onto the needle 1 can be controlled, and the test requirements for different speeds of the sample when it falls onto the needle 1 can be met, so that the application scenarios of the drop needle puncture test device are not limited.

[0045] It should be noted that in the embodiments of the present utility model, the samples tested by the drop needle puncture test device can be batteries, photovoltaic modules, display panels, etc., and the embodiments of the present utility model do not make any limitations in this regard.

[0046] Among them, the lancet 1 is a needle body structure with a sharp part, and the sharp part faces the clamping member 2, so that the sharp part of the lancet 1 can pierce the sample. The clamping member 2 is a plate-like structure with a support surface. The clamping member 2 can be a circular plate-like structure, a rectangular plate-like structure, or a plate-like structure of other shapes. The sample can be fixed in the first area 223 of the clamping member 2 by means of magnetic attraction, bolt connection, snap connection, etc. The first area 223 is an open area, so that the sample can fall to the position where the lancet 1 is located along with the clamping member 2, and then the lancet 1 can contact the sample through the through hole 211 in the first area 223, thereby avoiding the clamping member 2 from blocking the acupuncture process between the sample and the lancet 1.

[0047] It should be noted that according to the velocity formula of gravitational acceleration "v = gt (v is the actual velocity of gravitational acceleration, g is the gravitational acceleration, and t is the time)", where t is proportional to the distance between the clamping member 2 and the lancet 1 in the first direction Z. It can be obtained that the greater the distance between the clamping member 2 and the lancet 1 in the first direction Z, the greater the velocity of the sample when it falls to the lancet 1. On the contrary, the smaller the distance between the clamping member 2 and the lancet 1 in the first direction Z, the smaller the velocity of the sample when it falls to the lancet 1. Thus, if it is necessary to change the velocity of the sample when it falls to the lancet 1, it is necessary to change the distance between the clamping member 2 and the lancet 1 in the first direction Z.

[0048] Based on this, the embodiment of the present utility model provides a lifting assembly 3 for changing the distance between the clamping member 2 and the lancet 1 in the first direction Z. The lifting assembly 3 can include at least one of structures such as a sliding member, a winding member, a driving member, etc., and the embodiment of the present utility model does not limit this. The lifting assembly 3 can be movably connected to the clamping member 2 by any one of magnetic attraction, snap connection or riveting. When the distance between the clamping member 2 and the lancet 1 in the first direction Z controlled by the lifting assembly 3 reaches a preset distance, the clamping member 2 can freely fall in the direction close to the lancet 1. That is, when the distance between the clamping member 2 and the lancet 1 in the first direction Z controlled by the lifting assembly 3 reaches a preset distance, there is no connection relationship between the lifting assembly 3 and the clamping member 2, and the clamping member 2 can drive the sample to do free fall motion.

[0049] It should also be noted that according to Figure 1, in the embodiment of the present utility model, the X-axis direction intersects with the Z-axis direction, the X-axis direction intersects with the Y-axis direction, and the Y-axis direction intersects with the Z-axis direction. For the convenience of description, the first direction is defined as the Z-axis direction (that is, the direction of free fall of the clamping member 2 in the embodiment of the present utility model), the second direction is defined as the X-axis direction, and the third direction is defined as the Y-axis direction. Further explanation, the definition of perpendicular in the specification should be understood as perpendicular when floating within ten percent of ninety degrees, that is, the included angle between the defined first direction and the second direction should be understood as perpendicular when it is between eighty degrees and ninety degrees, the included angle between the defined first direction and the third direction should be understood as perpendicular when it is between eighty degrees and ninety degrees, and the included angle between the defined second direction and the third direction should be understood as perpendicular when it is between eighty degrees and ninety degrees.

[0050] Next, introduce the structure of the drop needle piercing test device provided by the embodiment of the present utility model, which is specifically as follows:

[0051] In some embodiments, the drop needle piercing test device further includes a guiding component 4; the guiding component 4 includes at least one guiding column 41 extending along the first direction Z, and at least one position at the edge of the clamping member 2 is slidably connected to the guiding column 41, and the clamping member 2 can slide along the extending direction of the guiding column 41.

[0052] In this embodiment, the number of guiding columns 41 included in the guiding component 4 is determined according to the structure of the clamping member 2. The guiding column 41 is of a cylindrical structure and extends along the first direction Z. Each guiding column 41 passes through the edge position of the clamping member 2 and is slidably connected to the guiding column 41. In this way, under the guiding action of the guiding column 41, the clamping member 2 can move along the first direction Z. Exemplarily, taking the clamping member 2 as a rectangular plate, one guiding column 41 is passed through the four corners of the clamping member 2, so that the clamping member 2 can slide along the extending direction of the guiding column 41.

[0053] Further, at least one position at the edge of the clamping member 2 is provided with a sliding ring 224; the sliding ring 224 is sleeved on the guiding column 41.

[0054] In this embodiment, a convex structure can be provided at the edge of the clamping member 2, and a through hole 211 is opened in the middle of the convex structure, so that the convex structure forms a sliding ring 224, and the guiding column 41 passes through the sliding ring 224. In this way, under the limiting action of the sliding ring 224, it is not only convenient for the installation of the guiding column 41 and the clamping member 2, but also convenient to ensure the slidable connection between the guiding column 41 and the clamping member 2.

[0055] For the structure of the lifting component 3, in a possible implementation manner, the clamping member 2 is made of a metal material, the lifting component 3 includes a guiding column 41, and the guiding column 41 is made of an electromagnetic material; the drop needle puncture test device further includes a control component 12, the control component 12 is electrically connected to the guiding column 41, and when the clamping member 2 slides to a preset position along the extending direction of the guiding column 41, the control component 12 controls the guiding column 41 to be in an energized state, and when the clamping member 2 is in free fall, the control component 12 controls the guiding column 41 to be in a de-energized state.

[0056] In this embodiment, the control component 12 may include devices such as a short-circuit breaker, a contactor, and an intermediate relay, and the energized state of the guiding column 41 is controlled by the control component 12. In this way, since the clamping member 2 is made of a metal material, the lifting component 3 includes a guiding column 41, and the guiding column 41 is made of an electromagnetic material, when it is necessary to adjust the distance between the clamping member 2 and the needle 1 in the first direction Z, the control component 12 can control the guiding column 41 to be in a de-energized state, so that the guiding column 41 has no magnetic force, that is, the guiding column 41 has a magnetic attraction effect on the clamping member 2, so that the clamping member 2 can slide along the extending direction of the guiding column 41. When the clamping member 2 slides to a preset position along the extending direction of the guiding column 41, that is, when the distance between the clamping member 2 and the needle 1 in the first direction Z is adjusted to a preset distance, the control component 12 can control the guiding column 41 to be in an energized state, so that the guiding column 41 has magnetic force, and the clamping member 2 can be adsorbed by the guiding column 41, so that the distance between the clamping member 2 and the needle 1 in the first direction Z is fixed. When the clamping member 2 drives the sample to fall freely, the control component 12 can control the guiding column 41 to be in a de-energized state, so that the guiding column 41 has no magnetic force, that is, the guiding column 41 has no magnetic attraction effect on the clamping member 2, so that the clamping member 2 can drive the sample to fall freely.

[0057] In summary, in this embodiment, the guiding column 41 can be used as both the guiding component 4 and the lifting component 3, which can reduce the complexity of the structure of the drop needle puncture test device and reduce the manufacturing cost of the drop needle puncture test device.

[0058] In some embodiments, a limiting member 411 is provided at a position of the guiding column 41 close to the end of the needle 1; the limiting member 411 extends in the second direction X towards the needle 1, and when the sample contacts the needle 1, the bottom of the clamping member 2 is lapped on the limiting member 411.

[0059] It should be noted that the limiting member 411 can be clamped at a position on the guide post 41 close to the end of the lancet 1. That is, the limiting member 411 is fixed at a position on the guide post 41 close to the end of the lancet 1 in the first direction Z, and the end of the limiting member 411 in the second direction X faces the lancet 1. In this way, when the sample is in contact with the lancet 1, the bottom of the clamping member 2 overlaps on the limiting member 411, which can prevent the clamping member 2 from completely falling and being bounced up again, thereby damaging the sample placed on the clamping member 2, and can ensure the accuracy of the detection. Further, in this embodiment, a sliding groove can be opened at a position on the guide post 41 close to the end of the lancet 1, so that the limiting member 411 can slide in the sliding groove, and the distance between the limiting member 411 and the end of the guide post in the first direction Z can be adjusted. When the type of the clamping member 2 or the type of the lancet 1 changes, the position of the limiting member 411 in the sliding groove can be adjusted, so that the limiting member 411 can adapt to different types of lancets 1 and clamping members 2.

[0060] For the structure of the lifting assembly 3, in another possible implementation, the lifting assembly 3 includes a lifting cable 31, a winding member 32, a driving member 33, and an electromagnetic member 34. The first end of the lifting cable 31 is connected to the clamping member 2 through the electromagnetic member 34. The second end of the lifting cable 31 is wound around the winding member 32. The driving member 33 is electrically connected to the winding member 32, and the driving member 33 drives the winding member 32 to rotate. When the driving member 33 drives the winding member 32 to rotate in the first rotation direction, the winding amount of the lifting cable 31 on the winding member 32 increases, and the clamping member 2 moves away from the lancet 1, and the distance between the clamping member 2 and the lancet 1 in the first direction Z increases. When the driving member 33 drives the winding member 32 to rotate in the second rotation direction, the winding amount of the lifting cable 31 on the winding member 32 decreases, and the clamping member 2 moves closer to the lancet 1, and the distance between the clamping member 2 and the lancet 1 in the first direction Z decreases, where the first rotation direction and the second rotation direction are two opposite rotation directions. When the electromagnetic member 34 is energized, the electromagnetic member 34 magnetically attracts the clamping member 2. When the electromagnetic member 34 is powered off, the electromagnetic member 34 has no magnetic attraction on the clamping member 2.

[0061] It should be noted that, in this embodiment, the driving member 33 may include any one of structures such as a motor, a reducer, a transmission shaft, a gear, a tire, a chain, etc. Therefore, when it is necessary to adjust the distance between the clamping member 2 and the needle 1 in the first direction Z, the control assembly 12 can be used to control the electromagnetic member 34 to be in an energized state, so that the electromagnetic member 34 has magnetic force. That is, the electromagnetic member 34 is magnetically attracted to the clamping member 2. At the same time, when the driving member 33 drives the winding member 32 to rotate, the winding amount of the cable 31 on the winding member 32 changes, and the distance between the clamping member 2 and the needle 1 in the first direction Z changes. When the clamping member 2 drives the sample to free fall, the control assembly 12 can be used to control the electromagnetic member 34 to be in a power-off state, so that the electromagnetic member 34 has no magnetic force. That is, the electromagnetic member 34 has no magnetic attraction to the clamping member 2, so that the clamping member 2 can drive the sample to free fall. To sum up, through this embodiment, the precise control of the distance between the clamping member 2 and the needle 1 in the first direction Z can be realized, and the whole process can be fully automated, thereby improving the efficiency of the drop needle puncture test.

[0062] In some embodiments, the clamping member 2 includes a clamping plate 21; a plurality of screw holes 222 are formed in the clamping plate 21, and the plurality of screw holes 222 are arranged in a matrix.

[0063] It should be noted that the clamping member 2 and the sample can be threadedly connected through the screw holes 222. In this way, since the sample is usually square in structure, when the plurality of screw holes 222 are arranged in a matrix, when the size of the sample changes, the clamping plate 21 does not need to be replaced, and the drop needle puncture test of samples with different sizes can be completed on the same clamping plate 21, and the opening positions of the screw holes 222 are more adapted to the fixing requirements of the clamping plate 21.

[0064] For other structures of the drop needle puncture test device, in some embodiments, the drop needle puncture test device further includes a box body 5; the needle 1, the clamping member 2 and the lifting assembly 3 are all installed in the inner cavity of the box body 5; at least one side wall of the box body 5 is provided with a transparent observation window 51, and at least one side wall of the box body 5 is provided with an air outlet 52. In this way, the internal drop needle puncture test process can be observed in real time through the observation window, so that the whole drop needle puncture test process is safe and controllable. Through the air outlet 52 opened on the box body 5, the air pressure and temperature consistency inside and outside the box body 5 can be ensured, and the safety of the drop needle puncture test process can be improved.

[0065] Further, the box body 5 includes a bottom plate 53, and the drop needle puncture test device further includes a fixing seat 6; the needle 1 is detachably connected to the surface of the fixing seat 6 facing the clamping member 2, and the surface of the fixing seat 6 away from the clamping member 2 is slidably connected to the bottom plate 53.

[0066] In this embodiment, a slider can be provided on the fixed seat 6, and a chute can be formed on the bottom plate 53. The slider is slidably connected in the chute, so that the fixed seat 6 can slide on the bottom plate 53. Since the lancet 1 is detachably connected to the surface of the fixed seat 6 facing the clamping member 2, the fixed seat 6 can be made to slide on the bottom plate 53, thereby changing the relative position of the acupuncture, and facilitating the drop acupuncture test on different parts of the sample. In addition, it should be noted that the lancet 1 can be detachably connected to the surface of the fixed seat 6 facing the clamping member 2 by means of threaded connection, clamping connection, riveting, etc., so as to facilitate the timely replacement of the lancet 1.

[0067] In some embodiments, the drop acupuncture test device further includes a temperature acquisition module 7, a voltage acquisition module 8, an impact force acquisition module 9, a speed acquisition module 10, and a video acquisition module 11. The temperature acquisition module 7, the voltage acquisition module 8, the impact force acquisition module 9, the speed acquisition module 10, and the video acquisition module 11 are all electrically connected to the sample. In this way, through the temperature acquisition module 7, the voltage acquisition module 8, the impact force acquisition module 9, the speed acquisition module 10, and the video acquisition module 11, data can be acquired in multiple aspects during the drop acupuncture test process of the sample, and it can be ensured that all test data are synchronized, which is beneficial to improving the accuracy of the test.

[0068] As can be seen from the above embodiments, in the embodiments of the present utility model, since the clamping member 2 is located at the top of the lancet 1 in the first direction Z, the clamping member 2 is provided with a through hole 211 in the first region 223, the sample is fixed in the first region 223, and the positive projection of the first region 223 in the first direction Z and the positive projection of the lancet 1 in the first direction Z at least partially overlap. Therefore, the sample can move synchronously with the clamping member 2. That is, when the sample reaches the lancet 1 along with the clamping member 2, the lancet 1 can pass through the through hole 211 in the first region 223 and contact the sample to ensure the normal progress of the drop lancet 1 test. Also, since the lifting assembly 3 is movably connected to the clamping member 2, and the lifting assembly 3 is used to control the distance between the clamping member 2 and the lancet 1 in the first direction Z. When the distance between the clamping member 2 and the lancet 1 in the first direction Z controlled by the lifting assembly 3 reaches a preset distance, the clamping member 2 can freely fall towards the direction of the lancet 1, and the speed of the sample when it falls onto the lancet 1 is proportional to the initial height of the sample. Therefore, the distance between the clamping member 2 and the lancet 1 in the first direction Z can be changed by the lifting assembly 3, and further the speed of the sample when it falls onto the lancet 1 can be changed. In summary, through the drop acupuncture test device provided by the embodiments of the present utility model, the speed of the sample when it falls onto the lancet 1 can be controlled, and the test requirements for different speeds of the sample when it falls onto the lancet 1 can be met, so that the application scenario of the drop acupuncture test device is not limited.

[0069] Each embodiment in the description is described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0070] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0071] Finally, it should also be noted that in this text, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or terminal device comprising the element.

[0072] The above has introduced the present invention in detail. Specific examples are used in this text to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A drop needle puncture test device for performing drop needle puncture tests on samples, characterized in that, The drop needle puncture test device has a first direction (Z), a second direction (X), and a third direction (Y) that intersect pairwise; It includes: A needle (1); A clamping member (2), the clamping member (2) is located at the top of the needle (1) in the first direction (Z), the clamping member (2) is provided with a through hole (211) in a first area (223), the sample is fixed in the first area (223), and the orthographic projection of the first area (223) along the first direction (Z) and the orthographic projection of the needle (1) in the first direction (Z) at least partially overlap; A lifting assembly (3), the lifting assembly (3) is movably connected to the clamping member (2), the lifting assembly (3) is used to control the distance between the clamping member (2) and the needle (1) in the first direction (Z), and when the distance between the clamping member (2) and the needle (1) in the first direction (Z) controlled by the lifting assembly (3) reaches a preset distance, the clamping member (2) can freely fall towards the direction of the needle (1).

2. The drop needle puncture test device according to claim 1, characterized in that The drop needle puncture test device further includes a guiding assembly (4); The guiding assembly (4) includes at least one guiding column (41) extending along the first direction (Z), at least one position at the edge of the clamping member (2) is slidably connected to the guiding column (41), and the clamping member (2) can slide along the extending direction of the guiding column (41).

3. The drop needle piercing test device according to claim 2, wherein At least one position at the edge of the clamping member (2) is provided with a sliding ring (224); The sliding ring (224) is sleeved on the guiding column (41).

4. The drop needle puncture test device according to claim 2, wherein The clamping member (2) is made of a metal material, the lifting assembly (3) includes the guiding column (41), and the guiding column (41) is made of an electromagnetic material; The drop needle puncture test device further includes a control assembly (12), the control assembly (12) is electrically connected to the guiding column (41), and when the clamping member (2) slides to a preset position along the extending direction of the guiding column (41), the control assembly (12) controls the guiding column (41) to be in an energized state, and when the clamping member (2) freely falls, the control assembly (12) controls the guiding column (41) to be in a de-energized state.

5. The drop needle puncture test device according to claim 2, characterized in that, A limiting member (411) is provided at a position of the guiding column (41) close to the end of the needle (1); The limiting member (411) extends towards the direction close to the needle (1) along the second direction (X), and when the sample contacts the needle (1), the bottom of the clamping member (2) is lapped on the limiting member (411).

6. The drop acupuncture test device according to claim 1, wherein, The lifting assembly (3) includes a lifting cable (31), a winding member (32), a driving member (33), and an electromagnetic member (34) The first end of the lifting cable (31) is connected to the clamping member (2) through the electromagnetic member (34), the second end of the lifting cable (31) is wound around the winding member (32), the driving member (33) is electrically connected to the winding member (32), and the driving member (33) drives the winding member (32) to rotate; When the driving member (33) drives the winding member (32) to rotate in the first rotation direction, the winding amount of the lifting cable (31) on the winding member (32) increases, the clamping member (2) moves away from the lancet (1), and the distance between the clamping member (2) and the lancet (1) in the first direction (Z) increases. When the driving member (33) drives the winding member (32) to rotate in the second rotation direction, the winding amount of the lifting cable (31) on the winding member (32) decreases, the clamping member (2) moves towards the lancet (1), and the distance between the clamping member (2) and the lancet (1) in the first direction (Z) decreases, where the first rotation direction and the second rotation direction are two opposite rotation directions; When the electromagnetic member (34) is energized, the electromagnetic member (34) magnetically attracts to the clamping member (2). When the electromagnetic member (34) is de-energized, the electromagnetic member (34) has no magnetic attraction to the clamping member (2).

7. The drop needle puncture test device according to claim 1, characterized in that The clamping member (2) includes a clamping plate (21); A plurality of screw holes (222) are formed in the clamping plate (21), and the plurality of screw holes (222) are arranged in a matrix.

8. The drop needle puncture test device according to claim 1, characterized in that The drop lancet test device further includes a box body (5); The lancet (1), the clamping member (2) and the lifting assembly (3) are all installed in the inner cavity of the box body (5); At least one side wall of the box body (5) is provided with a transparent observation window (51), and at least one side wall of the box body (5) is provided with an air outlet (52).

9. The drop needle puncture test device according to claim 8, characterized in that, The box body (5) includes a bottom plate (53), and the drop lancet test device further includes a fixing seat (6); The lancet (1) is detachably connected to the surface of the fixing seat (6) facing the clamping member (2), and the surface of the fixing seat (6) away from the clamping member (2) is slidably connected to the bottom plate (53).

10. The drop needle puncture test device according to claim 1, wherein, The drop lancet test device further includes a temperature acquisition module (7), a voltage acquisition module (8), an impact force acquisition module (9), a speed acquisition module (10) and a video acquisition module (11). The temperature acquisition module (7), the voltage acquisition module (8), the impact force acquisition module (9), the speed acquisition module (10) and the video acquisition module (11) are all electrically connected to the sample.

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