An impact test release device

Abstract

This invention discloses an impact test release device, belonging to the technical field of impact testing equipment. It includes a release body, a release cylinder, a release piston, a connecting seat, and a locking assembly. By placing the release body and release piston inside the release cylinder, and providing a locking hole on the connecting seat, a locking assembly is installed within the locking hole to lock the release piston. High-pressure gas is used as a power source to unlock the release piston, and the high-pressure gas drives the release piston to move at high speed, thereby rapidly pushing the release body carrying the test sample out of the release cylinder for release. Simultaneously, a vent hole on the connecting seat, communicating with both the locking hole and the release cylinder, allows for simultaneous unlocking and release via the same gas source, simplifying the operation. This impact test release device is simple in structure, easy to operate, and highly reliable. It can perform impact tests on different test subjects and under different impact conditions, has a wide range of applications, and possesses good application prospects and promotional value.

Description

Technical Field

[0001] This invention belongs to the technical field of impact testing equipment, and specifically relates to an impact testing release device. Background Technology

[0002] With the advancement of technology, electronic products are being used more and more widely in daily life. During the use and transportation of electronic products, they may be subjected to various impacts, which may cause the electronic devices to malfunction or even be damaged. Therefore, the impact resistance of electronic products needs to be fully considered in the design and manufacturing process, and it should be regarded as an important indicator for testing the performance of electronic devices.

[0003] To ensure the quality and reliability of products leaving the factory, it is necessary to design a test device to simulate the various impact forces that electronic equipment is subjected to during use, in order to determine whether the test sample can meet the high impact resistance requirement. Summary of the Invention

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides an impact test release device that can simultaneously unlock and release the impact test release device using the same gas source.

[0005] To achieve the above objectives, the present invention provides an impact test release device, which includes a release body, a release cylinder, a release piston, a connecting seat, and a locking assembly;

[0006] The release cylinder has a release cavity with one end open in the middle, and a first through hole and a second through hole communicating with the release cavity are sequentially provided along the axial direction on the side wall of the release cylinder.

[0007] The release body is provided with a receiving cavity for placing the test sample, and at least a portion of the release body is disposed within the release cavity and is movable along the release cavity;

[0008] The release piston is sealed and disposed within the release chamber, between the first through hole and the second through hole, and is movable along the release chamber;

[0009] The connecting seat is sealed and fixed on the release cylinder, including a vent hole and a locking hole. One end of the vent hole is connected to the outside, and the other end is connected to both the locking hole and the second through hole. The locking hole is connected to the first through hole.

[0010] The locking assembly is disposed within the locking hole and includes an unlocking piston and a compression spring. The unlocking piston is sealed to the inner wall of the locking hole and can move along the inner wall of the locking hole. One end of the unlocking piston extends into the release chamber from the first through hole and abuts against the end face of the release piston near the release body to lock the release piston. An annular step is provided on the unlocking piston, and one end of the compression spring compresses and abuts against the side of the annular step away from the release cylinder.

[0011] As a further improvement of the present invention, a plurality of the connecting seats are arranged at intervals along the outer periphery at one end of the release cylinder away from the opening, and the locking component is arranged in each of the connecting seats.

[0012] As a further improvement of the present invention, two connecting seats are symmetrically arranged on the outer peripheral wall of the release cylinder. The vent hole on one connecting seat is connected to a pipe fitting, and the vent hole on the other connecting seat is connected to an exhaust valve.

[0013] As a further improvement of the present invention, the locking assembly further includes an adjusting nut, which is threadedly connected to the inner wall of the locking hole at the end opposite to the release cylinder. The end of the compression spring opposite to the annular step abuts against the adjusting nut, and the end of the unlocking piston opposite to the release cylinder extends out of the locking hole through the adjusting nut.

[0014] As a further improvement of the present invention, it also includes an end cap, which is sleeved on the release body and fixed at the opening of the release cavity, and the inner diameter of the end cap is smaller than the outer diameter of the release piston, so as to limit the release piston within the release cavity.

[0015] As a further improvement of the present invention, a buffer pad is provided in the release chamber near the end cap to decelerate and buffer the release piston.

[0016] As a further improvement of the present invention, a plurality of balls are provided between the end cap and the release body, and a rolling groove is provided on the inner peripheral wall of the end cap corresponding to the balls, wherein the balls are partially accommodated in the rolling groove.

[0017] As a further improvement of the present invention, a guide groove extending axially is provided on the outer wall of the release body, and the ball portion is accommodated in the guide groove.

[0018] As a further improvement of the present invention, an air chamber is provided at the end of the release piston away from the release body, and the air chamber is in communication with the release chamber.

[0019] As a further improvement of the present invention, one end of the release body is disposed inside the release cavity, and the other end is disposed outside the release cavity, and the receiving cavity is disposed at the end of the release body away from the release cavity, and the outer diameter of the end of the release body near the receiving cavity is larger than the inner diameter of the release cavity.

[0020] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0021] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include:

[0022] (1) The impact test release device of the present invention sets the release body and the release piston inside the release cylinder, sets a locking hole on the connecting seat, and sets a locking component in the locking hole to lock the release piston. The release piston is unlocked by using high pressure gas as a power source, and the release piston is pushed to move at high speed by the high pressure gas, thereby releasing the release body carrying the test sample out of the release cylinder at high speed. At the same time, by setting a vent on the connecting seat that communicates with the locking hole and the release cylinder, the unlocking and release are synchronized by the same gas source, simplifying the operation steps.

[0023] (2) The impact test release device of the present invention provides a multi-level locking function by setting multiple connecting seats at intervals on the outer circumference of the release cylinder and setting a locking component in each connecting seat to lock the unlocking piston, thereby ensuring the reliability of locking the release piston.

[0024] (3) The impact test release device of the present invention controls the release acceleration of the release piston by setting an adjusting nut in the locking assembly to control the compression amount of the compression spring, thereby controlling the pressure of the high-pressure gas required for the unlocking piston to unlock.

[0025] (4) The impact test release device of the present invention provides an end cap with an inner diameter smaller than the outer diameter of the release piston at the opening end of the release cylinder to encapsulate the release piston in the release cylinder, which facilitates the reuse of the release piston; at the same time, a buffer pad is provided on the side of the release cylinder near the opening to decelerate and buffer the release piston, so as to avoid the release piston hitting the end cap and being damaged, thereby improving the repeated service life of the release piston.

[0026] (5) The impact test release device of the present invention achieves a sliding connection between the end cap and the release body by setting ball bearings in the end cap and the release body, so as to reduce the friction between the release body and the end cap when the release body is released; at the same time, by setting a guide groove on the release body and setting the ball bearings in the guide groove, the movement of the release body is guided by the ball bearings, so as to avoid the release body from axial rotation.

[0027] (5) The impact test release device of the present invention has a simple structure, is easy to operate and has high reliability. It can perform impact tests on different test bodies and under different impact conditions. It has a wide range of applications and has good application prospects and promotion value. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional view of the impact test release device in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the locking component in the impact test release device in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the overall structure of the impact test release device in an embodiment of the present invention;

[0032] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Release body; 101. Receiving cavity; 2. Ball bearing; 3. End cap; 4. Buffer pad; 5. Release cylinder; 501. Release cavity; 502. Rear cover; 503. First through hole; 504. Second through hole; 6. Connecting seat; 601. Locking hole; 602. Vent hole; 7. Compression spring; 8. Adjusting nut; 9. Unlocking piston; 901. Locking end; 902. Extending end; 10. Pipe joint; 11. Release piston; 1101. Air chamber; 12. Seal; 13. Exhaust valve; 14. Test specimen. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] Example:

[0039] Please see Figures 1-3The impact test release device in a preferred embodiment of the present invention includes a release body 1, a release cylinder 5, a release piston 11, a connecting seat 6, and a locking assembly. One end of the release body 1 and the release piston 11 are disposed within the release cylinder 5. An unlocking piston 9 is disposed within the connecting seat 6 and is locked by the locking assembly. When high-pressure gas is introduced into the connecting seat 6, the high-pressure gas pushes the locking assembly, releasing the lock on the release piston 11. The high-pressure gas then pushes the unlocking piston 9, thereby releasing the release body 1 containing the test sample 14 from the release cylinder 5.

[0040] Specifically, such as Figure 1 and Figure 3 As shown, in the preferred embodiment, the release cylinder 5 is a cylindrical structure, and a release cavity 501 is provided in the middle of the cylindrical structure along the axial direction. One end of the release cavity 501 is open, and the other end is fixedly connected to the rear cover 502. The rear cover 502 closes one end of the release cavity 501, and a sealing member 12 is provided between the rear cover 502 and the release cylinder 5 to seal one end of the release cavity 501.

[0041] Meanwhile, a first through hole 503 and a second through hole 504 communicating with the release chamber 501 are sequentially arranged along the axial direction on the side wall of the release cylinder 5, and the first through hole 503 is arranged on the side close to the opening so as to achieve communication with the connecting seat 6 through the first through hole 503 and the second through hole 504.

[0042] Furthermore, in the preferred embodiment, at least a portion of the release body 1 is disposed within the release cavity 501 and is movable along the axial direction of the release cavity 501. Meanwhile, a receiving cavity 101 for placing the test sample 14 is provided within the release body 1, so that the test sample 14 can be impacted by impacting the release body 1.

[0043] like Figure 1 As shown, one end of the release body 1 is disposed inside the release cavity 501, and the other end is disposed outside the release cavity 501. The receiving cavity 101 is disposed at the end of the release body 1 away from the release cylinder 5, and the outer diameter of the end of the release body 1 near the receiving cavity 101 is larger than the inner diameter of the release cavity 501, forming a T-shaped release body 1 structure.

[0044] Of course, in the initial state, the release body 1 can be completely contained in the release cavity 501, or the accommodating cavity 101 can be set at any position in the release body 1.

[0045] Furthermore, the release piston 11 is sealed within the release chamber 501, such as... Figure 1As shown, a sealing element 12 is provided between the release piston 11 and the inner wall of the release chamber 501 to achieve a seal between the release piston 11 and the release chamber 501; at the same time, the initial position of the release piston 11 is set between the first through hole 503 and the second through hole 504 on the side of the release body 1 close to the release cylinder 5, so as to push the release body 1 by pushing the release piston 11.

[0046] Preferably, a gas chamber 1101 communicating with the release chamber 501 is provided at the end of the release piston 11 opposite to the release body 1, so as to increase the space of the release chamber 501 on the side opposite to the release body 1, increase the volume of high-pressure gas that can be introduced, and thus increase the pushing force on the release piston 11 while reducing the weight of the release piston 11. Figure 1 As shown, the air cavity 1101 is preferably configured as a groove with a trapezoidal cross-section.

[0047] Furthermore, such as Figure 2 As shown, in the preferred embodiment, the connecting seat 6 is sealed and fixedly connected to the side wall of the release cylinder 5 by fasteners, and a locking hole 601 and a vent hole 602 are provided on the connecting seat 6. One end of the vent hole 602 is connected to the outside, and the other end is connected to both the locking hole 601 and the second through hole 504, and the locking hole 601 is connected to the first through hole 503.

[0048] like Figure 2 As shown, in order to achieve a seal between the connecting seat 6 and the release cylinder 5, sealing elements 12 are provided at the connection points of the first through hole 503 and the second through hole 504 with the connecting seat 6.

[0049] Furthermore, in the preferred embodiment, the locking assembly is disposed within the locking hole 601, specifically including an unlocking piston 9 and a compression spring 7. The unlocking piston 9 is sealed to the inner wall of the locking hole 601 and can move along the inner wall of the locking hole 601. Simultaneously, one end of the unlocking piston 9 is extended into the release chamber 501 from the first through hole 503 as the locking end 901 and abuts against the end face of the release piston 11 near the release body 1 to lock the initial position of the release piston 11, preventing the release piston 11 from moving towards the side closer to the release body 1. The lock on the release piston 11 is released by the unlocking piston 9 moving away from the release cylinder 5.

[0050] Meanwhile, an annular step is provided on the unlocking piston 9, and one end of the compression spring 7 is compressed and abutted against the side of the annular step away from the release cylinder 5, so as to provide preload force to the unlocking piston 9 through the compression spring 7.

[0051] Preferably, the locking assembly further includes an adjusting nut 8, which is threaded to the inner wall of the locking hole 601 away from the release cylinder 5. One end of the unlocking piston 9 extends out of the locking hole 601 through the adjusting nut 8 as an extension end 902, and the end of the compression spring 7 away from the annular step abuts against the adjusting nut 8, so that the initial compression of the compression spring 7 can be controlled by turning the adjusting nut 8, thereby adjusting the magnitude of the preload of the unlocking piston 9.

[0052] It can be understood that the greater the preload, the greater the pressure of the high-pressure gas required for unlocking, which in turn increases the pressure of the high-pressure gas entering the release chamber 501, and the greater the release acceleration obtained by the release piston 11. Therefore, the release acceleration of the release piston 11 can be controlled by controlling the initial compression of the compression spring 7.

[0053] In actual operation, high-pressure gas can be introduced into the locking hole 601 and the release chamber 501 through the vent 602. The high-pressure gas pushes the unlocking piston 9 to overcome the preload of the compression spring 7 and move it away from the release cylinder 5, thereby releasing the lock on the release piston 11. The high-pressure gas in the release chamber 501 pushes the release piston 11 to move at high speed towards the release body 1, thus pushing the release body 1 out of the release cylinder 5 at high speed.

[0054] Preferably, multiple connecting seats 6 are arranged at intervals around the outer periphery of the release cylinder 5, and an unlocking piston 9 is provided in each connecting seat 6, so as to achieve multi-level locking of the release piston 11 through multiple unlocking pistons 9, and ensure the reliability of locking the release piston 11.

[0055] like Figure 1 As shown, two connecting seats 6 are arranged at intervals on the outer circumference of the release cylinder 5 near the rear cover 502. More preferably, the two connecting seats 6 are symmetrically arranged on both sides of the release cylinder 5. At the same time, a locking component is provided in both connecting seats 6, and a pipe joint 10 is threadedly installed in the vent hole 602 of one of the connecting seats 6 and sealed with the pipe joint 10 by a sealing element 12, so as to connect with the high-pressure gas pipe through the pipe joint 10 and introduce high-pressure gas into the vent hole 602. Correspondingly, an exhaust valve 13 is connected to the vent hole 602 of the other connecting seat 6 so that the high-pressure gas in the device can be discharged through the exhaust valve 13 after the test.

[0056] Furthermore, an annular end cap 3 is fixedly provided at the open end of the release cylinder 5 away from the rear cover 502. The inner diameter of the annular end cap 3 is larger than the outer diameter of the release body 1 near the release cylinder 5 and smaller than the outer diameter of the release piston 11. This is to limit the release piston 11 in the release chamber 501 without affecting the movement of the release body 1, so that when the release piston 11 pushes out the release body 1 under the action of high pressure gas, it will not fly out with it, which facilitates the recycling of the release piston 11.

[0057] Preferably, a buffer pad 4 is provided on the inner wall of the release chamber 501 near the end cover 3. One end of the buffer pad 4 abuts against the side wall of the end cover 3, and the inner diameter of the buffer pad 4 is smaller than the outer diameter of the release piston 11. When the release piston 11 moves to the vicinity of the end cover 3, the buffer pad 4 decelerates and buffers the release piston 11, reduces the impact force between the release piston 11 and the end cover 3, prevents the release piston 11 from being damaged by impact, and ensures that it has the function of being reusable.

[0058] Preferably, a plurality of balls 2 are provided between the end cap 3 and the release body 1, and rolling grooves are provided on the inner peripheral wall of the end cap 3 corresponding to the balls 2. The balls 2 are partially accommodated in the rolling grooves, so that the sliding connection between the end cap 3 and the release body 1 is achieved by the rolling of the balls 2 in the rolling grooves, thereby reducing the friction between the release body 1 and the end cap 3 when the release body 1 moves. More preferably, guide grooves are provided on the outer wall of the release body 1, corresponding to the circumferential position of the balls 2, extending axially. The balls 2 are partially disposed in the guide grooves, so that the movement of the release body 1 is guided by the balls 2, avoiding unnecessary rotation of the release body 1 during longitudinal movement.

[0059] Furthermore, the specific working process of the impact test release device in this invention is as follows:

[0060] (1) Place the test sample 14 into the accommodating cavity 101 of the release body 1, connect the high-pressure gas pipe connected to the gas source to the pipe joint 10, and close the exhaust valve 13.

[0061] (2) When the gas source switch is turned on, the high-pressure gas enters the connecting seat 6 through the pipe joint 10 and is diverted into the locking hole 601 and the release chamber 501 through the vent hole 602.

[0062] (3) When the high pressure gas in the locking hole 601 is greater than the preload of the unlocking piston 9, the high pressure gas pushes the unlocking piston 9 to move away from the release piston 11. The locking end 901 of the unlocking piston 9 retracts into the locking hole 601, releasing the lock on the release piston 11. At the same time, the high pressure gas in the release chamber 501 on the side of the release piston 11 away from the release body 1 pushes the release piston 11 to push the release body 1 out at high speed, completing the release operation of the impact test.

[0063] (4) Turn off the gas source switch, open the exhaust valve 13, put the release body 1 back into the release cylinder 5, the release piston 11 returns to its original position, and the unlocking piston 9 locks the release piston 11 again under the restoring force of the compression spring 7, so that the next test can be repeated.

[0064] Understandably, after the air source switch is turned off and the exhaust valve 13 is opened, the unlocking piston 9 will re-enter the release cylinder 5 under the restoring force of the compression spring 7. Therefore, when the release body 1 is reinstalled into the release cylinder 5 and the release piston 11 returns to its original position, the protruding end 902 of the unlocking piston 9 needs to be pulled outward. After the release piston 11 returns to its original position, the unlocking piston 9 is released, and the locking end 901 of the unlocking piston 9 re-enters the release chamber 501 under the restoring force of the compression spring 7, thus locking the release piston 11.

[0065] The impact test release device of the present invention has a simple structure, is easy to operate, and has high reliability. It can perform impact tests on different test objects and under different impact conditions, has a wide range of applications, and has good application prospects and promotion value.

[0066] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An impact test release device, characterized in that, Includes a release body, a release cylinder, a release piston, a connecting seat, and a locking assembly; The release cylinder has a release cavity with one end open in the middle, and a first through hole and a second through hole communicating with the release cavity are sequentially provided along the axial direction on the side wall of the release cylinder. The release body is provided with a receiving cavity for placing the test sample, and at least a portion of the release body is disposed within the release cavity and is movable along the release cavity; The release piston is sealed and disposed within the release chamber, between the first through hole and the second through hole, and is movable along the release chamber; The connecting seat is sealed and fixed on the release cylinder, including a vent hole and a locking hole. One end of the vent hole is connected to the outside, and the other end is connected to both the locking hole and the second through hole. The locking hole is connected to the first through hole. The locking assembly is disposed within the locking hole and includes an unlocking piston and a compression spring. The unlocking piston is sealed to the inner wall of the locking hole and can move along the inner wall of the locking hole. One end of the unlocking piston extends into the release chamber from the first through hole and abuts against the end face of the release piston near the release body to lock the release piston. An annular step is provided on the unlocking piston, and one end of the compression spring compresses and abuts against the side of the annular step away from the release cylinder.

2. The impact test release device according to claim 1, characterized in that, A plurality of connecting seats are provided at intervals along the outer periphery of the end of the release cylinder away from the opening, and the locking component is provided in each connecting seat.

3. The impact test release device according to claim 2, characterized in that, Two connecting seats are symmetrically arranged on the outer peripheral wall of the release cylinder. The vent hole on one connecting seat is connected to a pipe fitting, and the vent hole on the other connecting seat is connected to an exhaust valve.

4. The impact test release device according to any one of claims 1 to 3, characterized in that, The locking assembly also includes an adjusting nut, which is threaded to the inner wall of the locking hole at the end opposite to the release cylinder. The end of the compression spring opposite to the annular step abuts against the adjusting nut, and the end of the unlocking piston opposite to the release cylinder extends out of the locking hole through the adjusting nut.

5. The impact test release device according to any one of claims 1 to 3, characterized in that, It also includes an end cap, which is fitted onto the release body and fixed at the opening of the release cavity. The inner diameter of the end cap is smaller than the outer diameter of the release piston, so as to limit the release piston within the release cavity.

6. The impact test release device according to claim 5, characterized in that, A buffer pad is also provided in the release chamber near the end cap to decelerate and buffer the release piston.

7. The impact test release device according to claim 5, characterized in that, A plurality of balls are provided between the end cap and the release body, and a rolling groove is provided on the inner peripheral wall of the end cap corresponding to the balls, with the balls partially accommodated in the rolling groove.

8. The impact test release device according to claim 7, characterized in that, The outer wall of the release body is provided with a guide groove extending axially, and the ball portion is accommodated in the guide groove.

9. The impact test release device according to any one of claims 1 to 3, 6 to 8, characterized in that, The end of the release piston opposite to the release body is provided with an air chamber, which is connected to the release chamber.

10. The impact test release device according to any one of claims 1 to 3, 6 to 8, characterized in that, One end of the release body is disposed inside the release cavity, and the other end is disposed outside the release cavity. The receiving cavity is disposed at the end of the release body away from the release cavity, and the outer diameter of the end of the release body near the receiving cavity is larger than the inner diameter of the release cavity.

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