A portable shotgun impact force testing device

Abstract

The application provides a portable hunting rifle impact force testing device, and relates to the technical field of impact testing.The device comprises a main plate, a clamping assembly is accommodated in the main plate, the clamping assembly is composed of an inner plate and a clamping jaw group, the inner plate and the clamping jaw group are accommodated in the main plate, the clamping jaw group is rotatably connected with the inner plate, a pull plate is connected to the outer side of the inner plate, a connecting rope is fixedly connected to the inner side of the pull plate, and the connecting rope penetrates through the inner plate on one side and is connected to the clamping jaw group on the other side.The device is made of carbon fiber material and has a storable design, is small in size, light in weight and convenient to carry, and is chargeable, so that the device can carry out testing work in the field and other environments, the portability and applicability of the device are improved, the testing requirements of the hunting rifle in different scenes are met, and the problems of the traditional testing device, such as large size, dependence on fixed testing sites and large equipment, lack of portability and inability to adapt to testing requirements in different scenes, are solved.

Description

Technical Field

[0001] This invention aims to provide a portable shotgun impact force testing device, achieving lightweight, miniaturized, and highly integrated design, making it easy to carry and operate, and belongs to the field of impact testing technology. Background Technology

[0002] With the continuous development of shotgun technology, portable shotguns have been widely used in hunting, shooting sports and other fields due to their small size, light weight and easy portability. However, the compact structure of portable shotguns makes their internal space compact and their components closely arranged, resulting in unique characteristics in the impact force generated during shooting, such as short impact time, high peak value and complex direction. Accurately testing the impact force of portable shotguns is of vital importance for evaluating shotgun performance, ensuring user safety and optimizing shotgun design.

[0003] Currently, existing shotgun impact testing devices have certain shortcomings. For example, traditional testing devices are bulky and complex in structure, mostly relying on fixed testing sites and large equipment, lacking portability and unable to meet the testing needs of portable shotguns in diverse scenarios such as the field and different shooting ranges. Furthermore, some large impact testing platforms require dedicated installation sites, and the equipment is difficult to transport, making it difficult to test portable shotguns in actual use environments. Additionally, existing testing devices are insufficient in terms of testing accuracy and functionality. Summary of the Invention

[0004] This disclosure relates to a portable shotgun impact force testing device, which solves the shortcomings of portable shotgun impact force testing devices, such as large size, lack of portability, difficulty in equipment handling, difficulty in conducting impact force tests on portable shotguns in the usage environment, and insufficient testing accuracy. The specific solution is as follows:

[0005] A portable shotgun impact force testing device specifically includes: a main board, a storage plate, and a storage rotating plate; a connecting shaft is fixedly connected to the rear side of the main board, and a clamping assembly is housed inside the main board; the storage plate is snapped into the interior of the main board; the storage rotating plate is rotatably snapped into the rear side of the main board; an inductor integrated board is rotatably snapped into the connecting shaft; a flexible material board is mounted on the inductor integrated board, and the inductor integrated board is connected to a display screen externally connected to the storage plate via a circuit; the clamping assembly consists of an inner closing plate and a clamping claw assembly, which are housed inside the main board, and the clamping claw assembly is rotatably plugged into the inner closing plate, and a pull plate is snapped into the outer side of the inner closing plate; a connecting rope is fastened to the inside of the pull plate, and the connecting rope passes through one side of the inner closing plate and connects to the clamping claw assembly on the other side.

[0006] More preferably, the rear top surface of the storage plate is provided with a positioning plate, the interior of which has a rectangular through hole and the front side of which has a T-shaped groove. A slide rail plate is engaged inside the T-shaped groove. The slide rail plate passes through the T-shaped slot inside the connecting shaft and its front end engages in the T-shaped groove on the rear end face of the motherboard. When the storage plate is rotated and stored to the bottom of the motherboard, the top of the positioning plate engages in the groove on the bottom surface of the storage plate.

[0007] More preferably, the top of the inner retractable plate is provided with a fixing sleeve, and the two sides of the inner retractable plate are provided with locking rods, which are engaged in the inner sliding groove. The outer sides of the two inner retractable plates are respectively provided with locking slots. The first clamping claw and the second clamping claw are respectively provided with locking shafts, which are engaged in the fixing sleeve at the top of the inner retractable plate. The inner retractable plate is fitted with a sleeve, and an elastic rope passes through the inside of the sleeve. One end of the two outer elastic ropes is fixedly connected to the first clamping claw, and one end of the two inner elastic ropes is fixedly connected to the second clamping claw. The clamping plates of the first clamping claw and the second clamping claw are staggered. Pulling the elastic ropes will drive the first clamping claw and the second clamping claw to move towards the middle. The clamping claws can be used to clamp and fix the shotgun. Since the soft material of the clamping claws will deform irregularly, the clamping claws can wrap around the outside of the shotgun to clamp and fix the shotgun, while providing good wrapping.

[0008] More preferably, an inner locking plate is fixedly connected to the rear side of the storage plate. The inner locking plate is snapped into the inside of the motherboard. A charging port for the built-in battery and a USB port are provided on the right side of the storage plate. A slot symmetrical to the inner sliding groove structure is provided on the rear side of the storage plate. By using the slot and the inner sliding groove to cooperate with each other, a fixing base and movement space can be provided for the inner storage plate when it is in use.

[0009] More preferably, the inductor integrated board has a snap-fit ​​hole inside, and a snap-fit ​​plate is fixedly connected to the bottom of the inductor integrated board. The snap-fit ​​plate has an arc-shaped structure and snaps onto the outside of the connecting shaft. The opening height of the snap-fit ​​plate is smaller than the diameter of the connecting shaft. The inductor integrated board is equipped with a displacement sensor and a multi-dimensional force sensor array. When the portable shotgun impact force test is carried out, the sensor adopts the piezoresistive principle and can measure the force component and obtain the vector information of the impact force. The array of multiple sensors can fully cover the force area when the shotgun is fired, avoiding measurement blind spots.

[0010] More preferably, a handle frame is fixedly welded to the outer side of the pull plate, and rectangular blocks are provided at both ends of the pull plate. The rectangular blocks are engaged in the inner sliding groove. The rectangular blocks can be used to orient the movement of the inner retracting plate to prevent the inner retracting plate from rotating. The end of the elastic rope in the sleeve is fastened to the inside of the pull plate by screws. Pulling the two pull plates can drive the elastic rope to move outward, thereby pulling the clamping claw assembly to move towards the middle to clamp and fix the shotgun.

[0011] More preferably, the motherboard is made of carbon fiber composite material and coated with an anti-slip and wear-resistant coating. It not only has the advantages of high strength and light weight, but also ensures the structural strength of the motherboard. The anti-slip and wear-resistant coating can protect the motherboard from wear and tear, and can also increase the friction with the placement surface during the test to prevent the device from sliding and ensure the stability of the test. The front end of the motherboard has an inner sliding groove, and the rear end of the motherboard has a T-shaped groove. A connecting shaft is provided on the rear side of the motherboard, and a T-shaped bayonet is provided at the bottom of the connecting shaft. The T-shaped bayonet can provide a secure base for the installation of the slide rail plate. An extension plate is provided at the rear end of the motherboard, and sleeves are provided at both ends of the rear side of the extension plate. The connecting shaft for storing the rotating plate is clamped inside the sleeve.

[0012] More preferably, the front side of the soft material board is covered with soft material, and a connecting plate and a plug are fixedly provided on the rear end face of the soft material board. The connecting plate is snapped into a card hole inside the inductor integrated board, and the plug is inserted into the front end face of the inductor integrated board, with a protruding retaining ring at the rear end of the plug.

[0013] This invention provides a portable shotgun impact force testing device, which has the following beneficial effects:

[0014] The portable shotgun impact force testing device of this invention is made of carbon fiber and features a retractable design, making it small in size and lightweight, easy to carry and store. Furthermore, its rechargeable design allows it to perform tests in environments without power supply, such as in the field, improving the device's portability and applicability to meet the testing needs of portable shotguns in various scenarios.

[0015] Furthermore, during the shotgun impact test, the sensor uses the piezoresistive principle to measure the force component and obtain the vector information of the impact force. The array of multiple sensors can fully cover the force area during shotgun firing, avoiding measurement blind spots. After the inductor integrated board is impacted, the snap-on plate will slide backward after disengaging from the connecting shaft. The displacement sensor can read the displacement distance of the inductor integrated board, comprehensively evaluate the impact force, and provide accurate data support.

[0016] In addition, after pulling the two pull plates, the clamping claw assembly is moved towards the center by the elastic rope. After the clamping claw deforms, it can closely fit the shape of the shotgun, so it is suitable for different models of portable shotguns. Then, the pull plate is wrapped around the storage plate from bottom to top and then snapped into the inner slide and the slot on the back of the storage plate to fix the pull plate. The operation is convenient and the shotgun can be tested in a real use environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram:

[0020] Figure 1 This diagram shows the structure of the portable shotgun impact force testing device after the soft material plate is installed.

[0021] Figure 2 A schematic diagram of the internal clamping plate structure of the portable shotgun impact force testing device of the present invention is shown;

[0022] Figure 3 A schematic diagram of the soft material plate structure of the portable shotgun impact force testing device of the present invention is shown;

[0023] Figure 4 A schematic diagram of the inductor integrated board structure of the portable shotgun impact force testing device of the present invention is shown;

[0024] Figure 5 A schematic diagram of the clamping assembly structure of the portable shotgun impact force testing device of the present invention is shown;

[0025] Figure 6 This diagram shows the unfolded structure between the pull plate and the retractable plate of the portable shotgun impact force testing device of the present invention;

[0026] Figure 7 A schematic diagram of the mainboard of the portable shotgun impact force testing device of the present invention is shown;

[0027] Figure 8 A schematic diagram of the connecting plate structure of the portable shotgun impact force testing device of the present invention is shown;

[0028] Figure 9 This diagram shows the structure of the portable shotgun impact force testing device of the present invention after the storage plate is folded and stored.

[0029] Figure 10 A schematic diagram of the unfolded structure between the inner plate and the second clamping claw of the portable shotgun impact force testing device of the present invention is shown.

[0030] List of reference numerals

[0031] 1. Main board; 101. Inner slide groove; 102. Connecting shaft; 103. Outer extension plate;

[0032] 2. Storage board; 201. Inner cardboard;

[0033] 3. Storage turntable; 301. Card slot plate; 302. Slide rail card plate;

[0034] 4. Inductor integrated board; 401, connector board;

[0035] 5. Soft material board; 501. Connecting plate; 502. Insert rod;

[0036] 6. Clamping assembly; 61. Inner retracting plate; 62. Clamping claw assembly; 6201. First clamping claw; 6202. Second clamping claw;

[0037] 7. Pull plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example: Please refer to the accompanying drawings in the instruction manual. Figures 1 to 10 :

[0040] This invention proposes a portable shotgun impact force testing device, comprising: a main board 1, a storage plate 2, and a storage rotating plate 3; a connecting shaft 102 is fixedly connected to the rear side of the main board 1, and a clamping assembly 6 is housed inside the main board 1; the storage plate 2 is snapped into the interior of the main board 1; the storage rotating plate 3 is rotatably snapped into the rear side of the main board 1; an inductor integrated board 4 is rotatably snapped into the connecting shaft 102; a flexible material board 5 is installed on the inductor integrated board 4, and the inductor integrated board 4 is connected to a display screen externally connected to the storage plate 2 via a circuit; the clamping assembly 6 is composed of an inner closing plate 61 and a clamping claw assembly 62, which are housed inside the main board 1, and the clamping claw assembly 62 is rotatably plugged into the inner closing plate 61, and a pull plate 7 is snapped into the outer side of the inner closing plate 61; a connecting rope is fastened to the inside of the pull plate 7, and the connecting rope passes through one side of the inner closing plate 61 and connects to the clamping claw assembly 62 on the other side.

[0041] In this disclosure embodiment, as shown in the accompanying drawings, Figure 2 , Figure 5 , Figure 7 and Figure 9As shown, an inner card plate 201 is fixedly connected to the rear side of the storage plate 2. The inner card plate 201 is snapped into the inside of the motherboard 1. The right side of the storage plate 2 has a charging port for the built-in battery and a USB port. The rear side of the storage plate 2 has a card slot that is symmetrical with the structure of the inner sliding groove 101. The card slot and the inner sliding groove 101 cooperate with each other to provide a fixing base and movement space for the inner storage plate 61 when it is in use. After the test is completed, the storage plate 2 is pushed back into the motherboard 1 to complete the storage, reducing the size for easy carrying. The collected data is transmitted to the data processing unit through the USB port. The operator can also export the test data to an external storage device, such as a USB flash drive or a portable hard drive, through the interface for further analysis and processing.

[0042] In this disclosure embodiment, as shown in the accompanying drawings, Figure 1 and Figure 7 As shown, the motherboard 1 is made of carbon fiber composite material and coated with an anti-slip and wear-resistant coating. It not only has the advantages of high strength and light weight, but also ensures the structural strength of the motherboard 1. The anti-slip and wear-resistant coating can protect the motherboard 1 from wear and tear, and can also increase the friction with the placement surface during the test to prevent the device from sliding and ensure the stability of the test. The front end face of the motherboard 1 has an inner sliding groove 101, and the rear end face of the motherboard 1 has a T-shaped groove. A connecting shaft 102 is provided on the rear side of the motherboard 1. A T-shaped bayonet is provided at the bottom of the connecting shaft 102. The T-shaped bayonet can provide a fixed base for the installation of the slide rail plate 302. An extension plate 103 is provided at the rear end of the motherboard 1. Sleeves are provided at both ends of the rear side of the extension plate 103. The connecting shaft of the storage rotating plate 3 is clamped inside the sleeve. The extension plate 103 can be used to connect with the storage rotating plate 3.

[0043] In this disclosure embodiment, as shown in the accompanying drawings, Figure 1 , Figure 2 and Figure 4 As shown, the inductor integrated board 4 has a locking hole inside, and a locking plate 401 is fixedly connected to the bottom of the inductor integrated board 4. The locking plate 401 has an arc-shaped structure and is locked to the outside of the connecting shaft 102. The opening height of the locking plate 401 is smaller than the diameter of the connecting shaft 102. The inductor integrated board 4 is equipped with a displacement sensor and a multi-dimensional force sensor array. When the shotgun impact force test is carried out, the sensor adopts the piezoresistive principle and can measure the force component and obtain the vector information of the impact force. The array of multiple sensors can fully cover the force area when the shotgun is fired, avoiding measurement blind spots. After the inductor integrated board 4 is impacted, the locking plate 401 is disengaged from the connecting shaft 102 and slides backward. The displacement distance of the inductor integrated board 4 can be read by the displacement sensor to comprehensively evaluate the impact force.

[0044] In this disclosure embodiment, as shown in the accompanying drawings, Figure 3 , Figure 6and Figure 8 As shown, a handle frame is fixedly welded to the outside of the pull plate 7. Rectangular blocks are provided at both ends of the pull plate 7. The rectangular blocks are engaged in the inner slide groove 101. The rectangular blocks can be used to orient the movement of the inner retractable plate 61 and prevent the inner retractable plate 61 from rotating. The inside of the pull plate 7 is fastened to the end of the elastic rope in the sleeve by screws. Pulling the two pull plates 7 can drive the elastic rope to move outward, thereby pulling the clamping claw assembly 62 to move towards the middle and clamp and fix the shotgun. After the clamping claw is deformed, it can closely fit the shape of the shotgun. Therefore, it is suitable for different models of portable shotguns. Then, the pull plate 7 is wrapped around the storage plate 2 from bottom to top and then the pull plate 7 is engaged in the inner slide groove 101 and the slot on the back side of the storage plate 2 to complete the fixation of the pull plate 7.

[0045] In this disclosure embodiment, as shown in the accompanying drawings, Figure 5 , Figure 6 and Figure 10 As shown, a fixing sleeve is provided at the top of the inner retracting plate 61, and locking rods are provided on both sides of the inner retracting plate 61. The locking rods are engaged in the inner sliding groove 101. The outer sides of the two inner retracting plates 61 are respectively provided with locking grooves. The first clamping claw 6201 and the second clamping claw 6202 are respectively provided with locking shafts, which are engaged in the fixing sleeves at the top of the inner retracting plate 61. The inner retracting plate 61 is fitted with a sleeve, and elastic ropes pass through the inside of the sleeve. One end of the two outer elastic ropes is fixedly connected to the first clamping claw 6201, and one end of the two inner elastic ropes is fixedly connected to the second clamping claw 6202. The first clamping claw 6201 and the second clamping claw 6202 are... The clamping plates are staggered. Pulling the elastic cord moves the first clamping claw 6201 and the second clamping claw 6202 toward the middle. The clamping claws can clamp and fix the shotgun. Because the soft material of the clamping claws will deform irregularly, the clamping claws can wrap around the outside of the shotgun to clamp and fix it. At the same time, it has good wrapping properties. After the elastic cord is fixed, the shotgun is clamped and fixed, and the preparation work before the impact test is completed. After the test is completed, the locking pin on the clamping claw is removed from the fixing sleeve of the inner retracting plate 61 to complete the disassembly and storage in the upper and lower sides of the inner locking plate 201 and the main board 1.

[0046] In this disclosure embodiment, as shown in the accompanying drawings, Figure 1 , Figure 5 and Figure 9As shown, a locking plate 301 is provided on the rear top surface of the storage rotating plate 3. A rectangular through hole is opened inside the locking plate 301, and a T-shaped groove is opened on the front side of the locking plate 301. A slide rail locking plate 302 is engaged inside the T-shaped groove. The slide rail locking plate 302 passes through the T-shaped slot inside the connecting shaft 102 and its front end is engaged in the T-shaped groove on the rear end face of the main board 1. When the storage rotating plate 3 is rotated and stored to the bottom of the main board 1, the top of the locking plate 301 is engaged in the groove opened on the bottom surface of the storage plate 2. After the inductor integrated board 4 and the soft material board 5 are hit by the shotgun, they move backward. The slide rail locking plate 302 provides guidance and stable support for the movement of the inductor integrated board 4 and the soft material board 5, preventing them from tipping over, and at the same time ensuring that the backward sliding distance is measurable.

[0047] In this disclosure embodiment, as shown in the accompanying drawings, Figure 3 and Figure 8 As shown, the front side of the soft material board 5 is covered with soft material. The rear end face of the soft material board 5 is fixedly provided with a connecting plate 501 and a plug rod 502. The connecting plate 501 is snapped into a snap hole inside the inductor integrated board 4. The plug rod 502 is inserted into the front end face of the inductor integrated board 4, and the rear end of the plug rod 502 is provided with a protruding retaining ring. When the retaining ring is snapped into the inductor integrated board 4, the snapping of the retaining ring can remind the operator that the snapping has been completed, thereby ensuring that the soft material board 5 can be tightly attached to the inductor integrated board 4, ensuring the transmission of force during impact testing and accurate measurement results.

[0048] The working principle of this embodiment is as follows: Rotate the folded storage plate 3 out, pull out the storage plate 2, and attach the slide rail plate 302 to the T-shaped groove on the front side of the mounting plate 301 and the T-shaped groove on the rear side of the main board 1. Rotate the inductor integrated plate 4 so that it is perpendicular to the main board 1, attach the soft material plate 5 to the inductor integrated plate 4, take out the clamping assembly 6, attach the clamping shaft on the clamping claw to the fixing sleeve on the top of the inner retracting plate 61, pass the sleeves at both ends of the elastic rope through the corresponding clamping claw and the inner retracting plate 61, and fix the ends of the elastic rope by fastening the connecting sleeves with screws. Connect the external display screen and the data processing unit through the USB port, place the shotgun between the two inner retracting plates 61 in the device, and pull the elastic rope to clamp the shotgun.

[0049] Check the power status of the built-in battery. If the built-in battery is low, it can be charged through the charging port. During the shotgun impact test, the sensor adopts the piezoresistive principle, which can measure the force component and obtain the vector information of the impact force. The array of multiple sensors can fully cover the force area when the shotgun is fired, avoiding measurement blind spots. After the inductor integrated board 4 is impacted, the snap-on plate 401 will slide backward after disengaging from the connecting shaft 102. The displacement distance of the inductor integrated board 4 can be read by the displacement sensor to comprehensively evaluate the impact force.

[0050] Data is transmitted to the data processing unit via a USB port. The data processing unit processes the data in real time, uses various analysis algorithms to extract key parameters of the impact force, and displays the test values ​​on an external display screen.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A portable shotgun impact force testing device, characterized in that, include: The motherboard (1), storage board (2), and storage rotating board (3) are provided. A connecting shaft (102) is fixedly connected to the rear side of the motherboard (1), and a clamping assembly (6) is stored inside the motherboard (1). The storage board (2) is snapped into the interior of the motherboard (1). The storage rotating board (3) is rotatably snapped into the rear side of the motherboard (1). An inductor integrated board (4) is rotatably snapped into the connecting shaft (102). A soft material board (5) is installed on the inductor integrated board (4). A card hole is opened inside the inductor integrated board (4). A snap-fit ​​plate (401) is fixedly connected to the bottom of the inductor integrated board (4). The snap-fit ​​plate (401) has an arc-shaped structure and is snapped into the outside of the connecting shaft (102). The opening height of the inductor integrated board (4) is smaller than the diameter of the connecting shaft (102). The inductor integrated board (4) is equipped with a displacement sensor and a multi-dimensional force sensor array. The inductor integrated board (4) is connected to the display screen that is externally connected to the storage board (2) through a circuit. The clamping assembly (6) is composed of an inner plate (61) and a clamping claw group (62). The inner plate (61) and the clamping claw group (62) are stored inside the main board (1). The clamping claw group (62) is rotatably inserted into the inner plate (61). A pull plate (7) is snapped onto the outside of the inner plate (61). A connecting rope is fastened inside the pull plate (7). The connecting rope passes through the inner plate (61) on one side and is connected to the clamping claw group (62) on the other side.

2. The portable shotgun impact force testing device according to claim 1, characterized in that, The main board (1) is made of carbon fiber composite material and coated with anti-slip and wear-resistant coating. The front end face of the main board (1) is provided with an inner sliding groove (101), the rear end face of the main board (1) is provided with a T-shaped groove, the rear side of the main board (1) is provided with a connecting shaft (102), the bottom of the connecting shaft (102) is provided with a T-shaped bayonet, the rear end of the main board (1) is provided with an extension plate (103), the rear ends of the extension plate (103) are provided with sleeves, and the connecting shaft for storing the rotating plate (3) is snapped into the inside of the sleeve.

3. The portable shotgun impact force testing device according to claim 2, characterized in that, The storage plate (2) is fixedly connected to the rear side of an inner card plate (201), which is snapped into the inside of the main board (1). The right side of the storage plate (2) is provided with a charging port for the built-in battery and a USB port, and the rear side of the storage plate (2) is provided with a card slot that is symmetrical to the structure of the inner slide groove (101).

4. The portable shotgun impact force testing device according to claim 3, characterized in that, The rear top surface of the storage turntable (3) is provided with a positioning plate (301). The interior of the positioning plate (301) is provided with a rectangular through hole. The front side of the positioning plate (301) is provided with a T-shaped groove. The interior of the T-shaped groove is fitted with a slide rail plate (302). The slide rail plate (302) passes through the T-shaped slot inside the connecting shaft (102) and its front end is fitted into the T-shaped groove on the rear end face of the main board (1). When the storage turntable (3) is rotated and stored to the bottom of the main board (1), the top of the positioning plate (301) is fitted into the groove on the bottom surface of the storage plate (2).

5. The portable shotgun impact force testing device according to claim 1, characterized in that, The front side of the soft material board (5) is covered with soft material. The rear end face of the soft material board (5) is fixedly provided with a connecting plate (501) and a plug (502). The connecting plate (501) is snapped into the card hole inside the inductor integrated board (4). The plug (502) is inserted into the front end face of the inductor integrated board (4) and the rear end of the plug (502) is provided with a protruding retaining ring.

6. The portable shotgun impact force testing device according to claim 5, characterized in that, The top of the inner retractable plate (61) is provided with a fixed sleeve, and the two sides of the inner retractable plate (61) are provided with locking rods. The locking rods are engaged in the inner sliding groove (101) and the slots on the back side of the storage plate (2). The outer sides of the two inner retractable plates (61) are respectively provided with slots. The first clamping claw (6201) and the second clamping claw (6202) are respectively provided with locking shafts. The locking shafts are engaged in the fixed sleeve at the top of the inner retractable plate (61). The inner retractable plate (61) is engaged with a sleeve. Elastic ropes pass through the inside of the sleeve. One end of the two outer elastic ropes is fixedly connected to the first clamping claw (6201), and one end of the two inner elastic ropes is fixedly connected to the second clamping claw (6202). The clamping positions of the first clamping claw (6201) and the second clamping claw (6202) are staggered.

7. The portable shotgun impact force testing device according to claim 6, characterized in that, A handle frame is fixedly welded to the outside of the pull plate (7). Rectangular blocks are provided at both ends of the pull plate (7). The rectangular blocks are engaged in the inner sliding groove (101). The end of the elastic rope in the sleeve is fastened to the inside of the pull plate (7) by screws.

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