Adjustable hitting device suitable for large animal experiments

Abstract

The application discloses a kind of adjustable hitting device suitable for large animal experiment, it is related to hitting experimental device technical field, including gantry support and hitting mechanism assembly, hitting mechanism assembly is fixed in gantry support by mounting base, hitting mechanism assembly includes hammer assembly, buckle plate assembly and firing assembly, hammer assembly includes ejection assembly, guide component and hammer head, ejection assembly is used to store energy so that the hammer head is ejected along guide component;Buckle plate assembly can be compressed along the first direction movement ejection assembly and complete energy storage;Firing assembly is arranged on the movement path of buckle plate assembly, and position is adjustable, firing assembly is used to fire buckle and separate from ejection assembly so that ejection assembly releases energy and ejects hammer head, wherein the first direction is the direction parallel to the axial direction of guide component.The application can effectively improve the versatility of adjustable hitting device suitable for large animal experiment, and can accurately control hitting speed, strength and height.

Description

Technical Field

[0001] This application relates to the field of impact testing apparatus technology, specifically to an adjustable impact apparatus suitable for large animal experiments. Background Technology

[0002] When conducting striking experiments on medium and large animals, the striking force used varies depending on the size of the animal. Currently used animal striking instruments are usually specialized and cannot be adjusted according to the size of the animal being struck, resulting in insufficient versatility of the striking instruments. Summary of the Invention

[0003] The main objective of this application is to provide an adjustable striking device suitable for large animal experiments, aiming to solve the aforementioned technical problems.

[0004] The technical solution adopted in this application is as follows:

[0005] An adjustable striking device suitable for large animal experiments, comprising:

[0006] Gantry support;

[0007] A striking mechanism assembly, which is fixed to the gantry bracket by a mounting base;

[0008] The striking mechanism assembly includes:

[0009] A hammer assembly, comprising a catapult assembly, a guide assembly, and a hammer head, wherein the catapult assembly is used to store energy to launch the hammer head along the guide assembly;

[0010] A buckle assembly, which is movable along a first direction to compress the ejection assembly to complete energy storage; and...

[0011] A firing assembly is provided on the moving path of the buckle assembly and its position is adjustable. The firing assembly is used to fire the buckle assembly to disengage from the ejection assembly, thereby causing the ejection assembly to release energy and launch the hammer head.

[0012] The first direction is a direction parallel to the axis of the guide component.

[0013] Optionally, the guide assembly includes a guide sleeve, the guide sleeve having a guide channel along its axis, and the sidewall of the guide sleeve having an axial clearance groove.

[0014] Optionally, the ejection assembly includes an ejection guide post and a first spring, the ejection guide post and the first spring being restricted to move within the guide channel, the ejection guide post being provided with a trigger that extends from the clearance groove into the guide sleeve.

[0015] Optionally, the hammer head includes a connecting shaft and a hammer head. The connecting shaft is fixed to the end of the ejector guide post away from the first spring. The connecting shaft extends outward along the axial direction of the guide sleeve and is fixedly connected to the hammer head located outside the guide sleeve.

[0016] Optionally, the buckle assembly includes:

[0017] A buckle base, which moves along the first direction;

[0018] The buckle body is rotatably mounted on the buckle base via a first shaft, and the buckle body fastens the trigger;

[0019] An elastic baffle, wherein the elastic baffle is disposed on the side of the latch body away from the trigger, and the elastic baffle is capable of reciprocating along a direction perpendicular to a first direction to block and release the latch body; and,

[0020] A trapezoidal drive block is connected to the elastic baffle along a first direction.

[0021] Optionally, the buckle assembly further includes a drive assembly for moving the buckle base, the drive assembly comprising:

[0022] The first guide rail is arranged along the first direction, and the buckle base is disposed inside the first guide rail;

[0023] A guide screw, wherein the guide screw is disposed along the first guide rail and both ends are connected to the bearings of the first guide rail, and the buckle plate base is threadedly connected to the guide screw; and,

[0024] A drive motor is connected to one end of the guide screw via a coupling.

[0025] Optionally, the firing component includes:

[0026] The second guide rail is arranged along the first direction, and a plurality of positioning screw holes are provided on the second guide rail along the length direction.

[0027] A slide table, which slides along the second guide rail, and is provided with positioning bolts that can connect to positioning screw holes at different locations; and,

[0028] The L-shaped plate is fixed to the slide table, and the bottom of the horizontal section of the L-shaped plate is provided with a trapezoidal stop block that matches the trapezoidal drive block.

[0029] Optionally, the guide sleeve is fixed to the mounting base by a diameter adjustment mechanism, the diameter adjustment mechanism comprising:

[0030] The fixing seat is fixed to the mounting base;

[0031] A fixed sleeve is rotatably mounted on the fixed base, and a fixed cavity is provided through the fixed sleeve along the axial direction;

[0032] A diameter adjustment assembly, the diameter adjustment assembly being arranged circumferentially around the fixed sleeve on the fixed base, the diameter adjustment assembly adjusting the clamping diameter formed by the assembly as the fixed sleeve rotates; and,

[0033] An adjustment component is provided for adjusting the circumferential rotation of the fixed sleeve.

[0034] Optionally, the diameter adjustment component includes:

[0035] An adjusting arm is provided, one end of which is rotatably mounted on the fixed base, and the other end of which extends into the fixed cavity.

[0036] A limiting sleeve, rotatably mounted on the fixed sleeve, and the adjusting arm slidingly passing through the limiting sleeve; and

[0037] A roller is rotatably mounted on one end of the adjusting arm located in the fixed cavity.

[0038] Optionally, the adjustment component includes:

[0039] A first base, the first base being fixed to the fixed base;

[0040] A second base, connected to the fixed sleeve, and capable of rotation; and,

[0041] An adjusting shaft is smoothly connected to the first base and simultaneously threadedly connected to the second base.

[0042] Compared with the prior art, the beneficial effects of this application are:

[0043] This application proposes an adjustable striking device suitable for large animal experiments. It stores energy by compressing the ejection component through a buckle assembly, and sets the firing component at different positions along the movement path of the ejection component according to the required striking force. This allows the ejection component to accumulate different amounts of energy and fire, thereby obtaining different striking forces. This meets the needs of different striking forces for animals of different sizes, and significantly improves its versatility. Attached Figure Description

[0044] Figure 1 A schematic diagram of the structure of an adjustable striking device suitable for large animal experiments, provided in an embodiment of this application, from one viewing angle.

[0045] Figure 2 A structural schematic diagram of the striking mechanism assembly from one perspective;

[0046] Figure 3 A structural schematic diagram of the striking mechanism assembly from another perspective;

[0047] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0048] Figure 5 for Figure 3 Enlarged view at point B in the middle;

[0049] Figure 6 This is a schematic diagram of the variable diameter adjustment mechanism from one perspective.

[0050] Figure 7 This is a schematic diagram of the exploded structure of the variable diameter adjustment mechanism from one perspective.

[0051] Explanation of the labels in the attached drawings:

[0052] 100-Gantry support, 200-Strike mechanism assembly, 300-Mounting base, 400-Diameter adjustment mechanism, 1-Hammer assembly, 11-Hammer body, 110-Connecting shaft, 111-Hammer head, 12-Ejection assembly, 120-Ejection guide post, 121-First spring, 122-Trigger, 13-Guide assembly, 130-Guide sleeve, 131-Allowing groove, 2-Snap plate assembly, 21-Snap plate base, 210-Slide groove, 22-Snap plate body, 23-Elastic baffle, 230-Baffle body, 231-Second spring, 232-Side plate, 24-Right-angle folding plate, 25-Trapezoidal drive block, 26-First guide rail, 261-Side stop, 27-Drive motor, 28-Screw, 3-Firing mechanism Components: 31-Second guide rail, 32-Slide table, 33-L-shaped plate, 34-Trapezoidal stop block, 35-Positioning hole, 36-Positioning bolt, 101-Base bracket, 102-Adjusting bracket, 103-First electric telescopic rod, 301-Fixed seat, 302-Modible seat, 303-Third electric telescopic rod, 41-Fixed seat, 42-Fixed sleeve, 43-Diameter adjustment component, 44-Adjusting component, 45-Stepped shaft, 46-Connecting hole, 47-Ear plate, 48-Shaft hole, 49-Pin, 410-Shaft body, 430-Adjusting swing arm, 431-Limiting sleeve, 432-Roller, 440-First base, 441-Second base, 442-Adjusting shaft, 411-Auxiliary collar. Detailed Implementation

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0054] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0055] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0057] See attached document Figure 1 As shown in the figure, this application provides an adjustable striking device suitable for large animal experiments, including a gantry support 100 and a striking mechanism assembly 200. The striking mechanism assembly 200 is fixedly installed on the gantry support 100 and includes a hammer assembly 1, a buckle assembly 2, and a firing assembly 3.

[0058] See also: Figures 2 to 3As shown, the hammer assembly 1 includes an ejection assembly 12, a guide assembly 13, and a hammer body 11. The ejection assembly 12 stores energy to launch the hammer body 11 along the guide assembly 13. Specifically, the guide assembly 13 includes a guide sleeve 130, and a guide channel is provided inside the guide sleeve 130 along its axis. The two ends of the guide channel are closed. The ejection assembly 12 includes an ejection guide post 120 and a first spring 121. The outer diameters of the ejection guide post 120 and the first spring 121 are the same as the inner diameter of the guide channel. The ejection guide post 120 and the first spring 121 are disposed within the guide channel, and in their natural state, the first spring 121 and the ejection guide post 120 fill the entire guide channel, that is, the sum of the lengths of the first spring 121 and the ejection guide post 120 is the same as the length of the guide channel. Meanwhile, the hammer body 11 includes a connecting shaft 110 and a hammer head 111. One end of the connecting shaft 110 is fixedly connected to the end of the ejector guide post 120 away from the first spring 121. The guide channel is located at one end of the connecting shaft 110 and has a through hole that allows only the connecting shaft 110 to pass through. The connecting shaft 110 extends outward along the axial direction of the guide sleeve 130 through the through hole and is fixedly connected to the hammer head 111 located outside the guide sleeve 130.

[0059] See above Figure 2 As shown, both ends of the guide sleeve 130 are fixedly mounted on the gantry bracket 100 via the mounting base 300. The side wall of the guide sleeve 130 is provided with an axially extending clearance groove 131. The side wall of the ejection guide post 120 is provided with a trigger 122 perpendicular to the axial direction of the ejection guide post 120. The trigger 122 extends out of the clearance groove 131 from the guide sleeve 130 and engages with the buckle assembly 2. See also... Figures 2 to 4As shown, the snap plate assembly 2 includes a snap plate base 21, a snap plate body 22, an elastic baffle 23, and a trapezoidal drive block 25. The snap plate base 21 is mounted with a first shaft via a bearing. The snap plate body 22 is fixedly sleeved on the first shaft (not shown in the figure), so that the snap plate body 22 and the first shaft rotate on the snap plate base 21. The end of the snap plate body 22 away from the first shaft is close to the trigger 122, and a snap hole is provided on the snap plate body 22. A snap hook is provided on the trigger 122. The snap hole is slightly larger than the snap hook. The snap plate body 22 and the trigger 122 are fastened together through the snap hole and the snap hook. The base 21 of the snap plate is provided with a groove 210 extending perpendicular to a first direction, which is parallel to the axis of the guide sleeve 130. The groove 210 is located on the side of the snap plate body 22 away from the trigger 122. An elastic baffle 23 is installed in the groove 210. The elastic baffle 23 includes a baffle body 230 and a second spring 231. The baffle body 230 is slidably installed in the groove 210. The bottom of the baffle body 230 is fixedly connected to the second spring 231. The lower end of the second spring 231 is fixed to the side of the snap plate base 21 through a side plate 232. In addition, right-angled folded plates 24 are integrally formed on both sides of the baffle body 230. Trapezoidal driving blocks 25 are integrally formed on the right-angled folded plates 24 on both sides. The trapezoidal driving blocks 25 protrude toward the trigger 122.

[0060] In the above, in order to enable the buckle assembly 2 to drive the ejection assembly 12 to compress the first spring 121 and store energy, such as Figure 3 and Figure 4 As shown, the buckle assembly 2 also includes a drive assembly for moving the buckle base 21. The drive assembly includes a first guide rail 26, a guide screw 28, and a drive motor 27. The first guide rail 26 is arranged in a direction parallel to the axial direction of the guide assembly 13. The first guide rail 26 has a first side groove along its side wall. The buckle base 21 is disposed in the first guide rail 26 and protrudes along the first side groove to form a limit, so that the buckle base 21 will not fall out of the first guide rail 26. The two ends of the first guide rail 26 are integrally formed with side stops 261. The guide screw 28 is disposed along the first guide rail 26 and its two ends are connected to the side stops 261 by bearings. The buckle base 21 is threadedly connected to the guide screw 28. The drive motor 27 is connected to one end of the guide screw 28 by a coupling. As can be imagined, the movement of the drive motor 27 can drive the buckle base 21 to move along the guide screw 28. Since the buckle body 22 is engaged with the trigger 122, and the baffle body 230 blocks the buckle body 22 from rotating away from the trigger 122, the buckle base 21 moves to drive the ejection guide post 120 to compress the first spring 121 to store energy.

[0061] In this embodiment, see Figure 3 and Figure 5As shown, the firing assembly 3 includes a second guide rail 31, a slide 32, and an L-shaped plate 33. The second guide rail 31 is fixedly arranged side-by-side on both sides of the first guide rail 26, and is parallel to the trapezoidal drive block 25. The sidewall of the second guide rail 31 has several positioning screw holes along its length. Different positioning screw holes correspond to different compression amounts of the first spring 121, and different compression amounts of the first spring 121 correspond to different striking forces and striking heights. The second guide rail 31 also has a second side groove along its sidewall. The slide 32 is slidably installed within the second guide rail 31 and protrudes into the second side groove, ensuring that the slide 32 is limited and does not fall out. A positioning bolt 36 is provided on the slide 32, allowing it to be positioned at different locations by screwing the positioning bolt 36 into the positioning screw hole. An L-shaped plate 33 is fixedly installed on the upper surface of the slide table 32, and a trapezoidal stop 34 adapted to the trapezoidal drive block 25 is provided at the bottom of the horizontal section of the L-shaped plate 33. It can be imagined that when the trapezoidal drive block 25 contacts the trapezoidal stop 34, the baffle body 230 is first pressed down and then bounced up.

[0062] It is understandable that, in a preferred embodiment, a hexagonal countersunk hole is provided on the outer end face of the positioning bolt 36 to facilitate tightening of the positioning bolt 36 with a hexagonal wrench.

[0063] Based on the above, when conducting large animal striking experiments:

[0064] First, use a hex wrench to unscrew the positioning bolt 36 outwards to separate it from the second guide rail 31 and the slide 32. According to the required striking force, move the slide 32 to the corresponding positioning screw hole. After the slide 32 moves to the designated point, screw the positioning bolt 36 into the corresponding positioning screw hole to fix the position of the slide 32. At this time, the compressible length of the first spring 121 is determined, thereby setting the striking force and striking height.

[0065] Next, the drive motor 27 is started, causing the guide screw 28 to rotate in the forward direction. The buckle base 21 then causes the buckle body 22 to move along the guide screw 28 toward the drive motor 27. Since the buckle body 22 is engaged with the trigger 122, and because the buckle body 22 is blocked by the baffle body 230 and cannot rotate away from the trigger 122, the ejector guide post 120 moves toward the first spring 121 along the guide channel under the movement of the buckle body 22, thereby compressing the first spring 121. When the buckle body 22 moves to the trapezoidal drive... When block 25 contacts trapezoidal abutment block 34, trapezoidal drive block 25 is pressed and drives baffle body 230 to move along slide groove 210, compressing second spring 231 to provide space for buckle body 22 to rotate. At this time, as buckle base 21 continues to move, buckle body 22 is forced to rotate away from trigger 122 and gradually disengage from trigger 122. Simultaneously, trigger 122 loses its obstruction. Under the action of first spring 121, ejection guide post 120 is pushed out by first spring 121, thereby driving hammer head 11 to strike the animal vertically downward.

[0066] Then, after the buckle base 21 moves to one end of the drive motor 27 and completes one stroke, the drive motor 27 reverses and drives the buckle base 21 to move in the opposite direction along the guide screw 28. When the buckle body 22 moves to the rear of the trigger 122, since there is no obstruction on the side of the buckle body 22 facing the trigger 122, the buckle body 22 will be forced to rotate to the side facing the trigger 122 and pass through the trigger 122. Of course, in order to achieve the reset of the buckle body 22, a torsion spring (not shown in the figure) connected to the buckle base 21 can be installed on the first shaft used to install the buckle body 22 on the buckle base 21, so that the buckle body 22 can return to the upright state after passing behind the trigger 122.

[0067] Thus, the drive motor 27 can repeatedly cycle through the previous steps, enabling continuous striking of the animal. It should be noted that during the striking experiment, the animal being struck is restrained, such as being confined in a cage with an opening for the hammer 11 to enter, and the animal's limbs are bound to prevent accidental injury to others when the animal is struck.

[0068] It can be seen that by controlling the rotation speed of the drive motor 27, the frequency of the ejection assembly 12 can be controlled, thereby accurately controlling the striking speed on the animal. At the same time, by adjusting the position of the firing assembly 3 to change the compression of the first spring 121, the striking height of the hammer 11 can be precisely controlled. Furthermore, by controlling the compression of the first spring 121, the energy stored in the hammer 11 can be precisely controlled, thereby accurately controlling the striking force.

[0069] In a preferred embodiment, to improve the practicality of the striking device and make the striking device provided in this application applicable to striking experiments on large animals of various sizes, see [link to relevant documentation]. Figure 1As shown, in this embodiment, the striking mechanism assembly 200 is fixed to the mounting base 300 via the variable diameter adjustment mechanism 400, and the mounting base 300 is fixed to the gantry bracket 100.

[0070] Specifically:

[0071] like Figure 1 As shown, to accommodate large animals of different sizes, the height of the gantry support 100 is adjustable. It is not limited to the following embodiments. The gantry support 100 includes a base support 101 and an adjusting support 102. The base support 101 has a slot along its longitudinal direction, and the adjusting support 102 is inserted into the slot to form a movable connection with the base support 101. Both the base support 101 and the adjusting support 102 have side plates on their sides, and a first electric telescopic rod 103 is installed between the side plates. The height of the gantry support 100 is adjusted by extending and retracting the first electric telescopic rod 103, thus adapting to animals of different sizes. It should be noted that when the first electric telescopic rod 103 is at its maximum extension, the base support 101 and the adjusting support 102 remain connected and do not separate. The width of the gantry support 100 is sufficient, and no adjustment of the spacing is required during use.

[0072] Based on the height-adjustable gantry support 100, to accommodate large animals of different sizes, the appropriate size of the striking mechanism assembly 100 needs to be replaced according to the animal's size. The hammer assembly 1, as the direct actuator for striking the animal, needs to be designed to fit the animal's size. Therefore, the hammer assembly 1 comes in various sizes with different diameters. The appropriate size hammer assembly 1 is selected based on the weight range of the large animal to obtain a suitable striking area. It's easy to understand that larger animals require larger hammerheads 11, thus requiring a larger diameter guide sleeve 130 for mounting the hammerheads 11.

[0073] Therefore, in order to facilitate the installation of different models of hammer assembly 1, see Figure 6 and Figure 7 As shown, in the striking mechanism assembly 100, the guide sleeve 130 is fixed to the mounting base 300 via a diameter adjustment mechanism 400. Specifically, the diameter adjustment mechanism 400 includes a fixed base 41, a fixed sleeve 42, a diameter adjustment component 43, and an adjustment component 44. The fixed base 41 has an integrally formed right-angle mounting portion, which is fixed to the mounting base 300 by bolts. The fixed base 41 has a centrally located axial through hole, and the fixed sleeve 42 can be installed and rotated within the axial through hole via a bearing connection. The fixed sleeve 42 has a through-cavity along the axial direction. During use, the guide sleeve 130 is inserted into the fixed cavity, and the clamping diameter is changed by adjusting the diameter adjustment component 43, thereby clamping hammer assemblies 1 of different sizes.

[0074] In the above embodiments, such as Figure 6 and Figure 7 As shown, the diameter adjustment assembly 43 includes an adjusting arm 430, a limiting sleeve 431, and a roller 432. One end of the adjusting arm 430 has a connecting hole 46. A stepped shaft 45 is fixedly mounted on the side of the fixed base 41 facing the diameter adjustment assembly 43. The stepped shaft 45 is installed in the connecting hole 46 via a bearing connection, allowing the adjusting arm 430 to rotate around the stepped shaft 45. The other end of the adjusting arm 430 passes through the limiting sleeve 431 and extends into the fixed cavity. A U-shaped wheel frame is provided at the end of the adjusting arm 430 located in the fixed cavity, and the roller 432 is rotatably mounted on the U-shaped wheel frame via a wheel axle. Furthermore, a shaft body 410 is integrally formed on the side of the limiting sleeve 431 facing the fixed base 41, and the shaft body 410 is connected to the fixed sleeve 42 via a bearing connection.

[0075] In the above embodiment, the adjusting component 44 includes a first base 440, a second base 441, and an adjusting shaft 442. The first base 440 is fixedly connected to the fixed base 41, and the second base 441 is connected to the fixed sleeve 42. An ear plate 47 is integrally formed on the outer wall of the fixed sleeve 42, and a shaft hole 48 is formed on the ear plate 47. A pin 49 is integrally formed on the second base 441, and the pin 49 is rotatably installed in the shaft hole 48 by means of a bearing connection. In the above embodiment, the first base 440 is provided with a smooth through hole, and the second base 441 is provided with a threaded through hole. Meanwhile, the adjusting shaft 442 includes a smooth rod section and a lead screw section. The smooth rod section passes through the smooth through hole and forms a smooth connection with the first base 440. Baffles are integrally formed at both ends of the smooth rod section to limit the axial position of the first base 440 and the smooth rod section, ensuring that the smooth rod section can only rotate and cannot move back and forth. The lead screw section forms a threaded connection with the second base 441 through the threaded through hole.

[0076] Based on the above, it can be imagined that when it is necessary to adjust the size of the clamping opening formed by the adjusting component 43, the operation steps are as follows:

[0077] First, the user rotates the adjusting shaft 442 by turning the handle at the end of the smooth rod section. The rotation of the adjusting shaft 442 causes the second base 441 to move along the lead screw section. Since the second base 441 is rotatably connected to the fixed sleeve 42, the movement of the second base 441 causes the fixed sleeve 42 to rotate. The fixed sleeve 42 is connected to the limiting slide sleeve. The rotation of the fixed sleeve 42 causes the adjusting arm 430 to extend and retract under the limitation of the limiting slide sleeve 431. Thus, as the adjusting arm 430 extends and retracts, the size of the clamping aperture is changed, achieving the purpose of clamping hammer assemblies 1 of different sizes.

[0078] It should be noted here that, as Figure 1As shown, in order to prevent the variable diameter adjustment mechanism 400 from slipping during the clamping of the guide sleeve 130, a groove can be provided on the outer wall of the guide sleeve. During the clamping process, the roller 432 is located in the groove and fits against the outer wall of the groove. The stepped surfaces on both sides of the groove abut against the adjustment arm 430, thus limiting the slippage of the guide sleeve 130.

[0079] Of course, in a preferred embodiment, to ensure the stability of the adjusting assembly 43 during movement, an auxiliary collar 411 is provided on the outer side of the fixed sleeve 42. The adjusting arm 430 is located between the fixed sleeve 42 and the auxiliary collar 411, and the limiting sleeve 431 has a shaft 410 formed on the side facing the auxiliary collar 411. The shaft 410 is rotatably connected to the auxiliary collar 411 by a bearing connection. It is easy to understand that installing the limiting sleeve 431 between the auxiliary collar 411 and the fixed sleeve 42 enhances the connection stability of the limiting sleeve 431.

[0080] In order to accommodate the trigger 122 in hammer assemblies 1 of different sizes with the snap plate body 22, in this embodiment, the mounting base 300 is position-adjustable. Specifically, as shown above... Figure 2 and Figure 3 As shown, the two sides of the fixed base 41 are fixed to the mounting base 300 by bolts. The fixed base 300 includes a fixed base body 301 fixed to the gantry bracket 100 by bolts and a movable base body 302 movably inserted into the fixed base body 301. The fixed base body 301 is provided with a slot along the axial direction perpendicular to the guide sleeve 130. The movable base body 302 is inserted into the slot. A second electric telescopic rod 303 is provided on the outer side of the fixed base body 301 and the movable base body 302 on one side. The second electric telescopic rod 303 adjusts the extension and retraction between the movable base body 302 and the fixed base body 301 by telescopic adjustment, thereby adjusting the position of the trigger 122 so that it is engaged with the buckle plate 22. It should be noted that even at the maximum extension of the second electric telescopic rod 303, the fixed base body 301 and the movable base body 302 remain mutually inserted and do not fall off.

[0081] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable striking device suitable for large animal experiments, characterized in that, include: Gantry support; A striking mechanism assembly, which is fixed to the gantry bracket by a mounting base; The striking mechanism assembly includes: A hammer assembly, comprising a catapult assembly, a guide assembly, and a hammer head, wherein the catapult assembly is used to store energy to launch the hammer head along the guide assembly; A buckle assembly, which is movable along a first direction to compress the ejection assembly to complete energy storage; and... A firing assembly is provided on the moving path of the buckle assembly and its position is adjustable. The firing assembly is used to fire the buckle assembly to disengage from the ejection assembly, thereby causing the ejection assembly to release energy and launch the hammer head. The guide assembly includes a guide sleeve, which has a guide channel along its axis and a clearance groove along its sidewall. The ejection assembly includes an ejection guide post and a first spring, the ejection guide post and the first spring being restricted to move within the guide channel, the ejection guide post being provided with a trigger that extends from the clearance groove into the guide sleeve; The buckle assembly includes: A buckle base, which moves along the first direction; The buckle body is rotatably mounted on the buckle base via a first shaft, and the buckle body fastens the trigger; An elastic baffle, wherein the elastic baffle is disposed on the side of the latch body away from the trigger, and the elastic baffle is capable of reciprocating along a direction perpendicular to a first direction to block and release the latch body; and, A trapezoidal drive block, wherein the trapezoidal drive block is connected to the elastic baffle along a first direction; The firing assembly includes: The second guide rail is arranged along the first direction, and a plurality of positioning screw holes are provided on the second guide rail along the length direction. A slide table, which slides along the second guide rail, and is provided with positioning bolts that can connect to positioning screw holes at different locations; and, An L-shaped plate, fixed to the slide table, is provided with a trapezoidal abutment at the bottom of the horizontal section of the L-shaped plate that matches the trapezoidal drive block. The guide sleeve is fixed to the mounting base by a diameter adjustment mechanism, the diameter adjustment mechanism comprising: The fixing seat is fixed to the mounting base; A fixed sleeve is rotatably mounted on the fixed base, and a fixed cavity is provided through the fixed sleeve along the axial direction; A diameter adjustment assembly, the diameter adjustment assembly being arranged circumferentially around the fixed sleeve on the fixed base, the diameter adjustment assembly adjusting the clamping diameter formed by the assembly as the fixed sleeve rotates; and, Adjustment component, the adjustment component being used to adjust the circumferential rotation of the fixed sleeve; The first direction is parallel to the axis of the guide assembly.

2. The adjustable striking device for large animal experiments according to claim 1, characterized in that, The hammer head includes a connecting shaft and a hammer head. The connecting shaft is fixed to the end of the ejector guide post away from the first spring. The connecting shaft extends outward along the axial direction of the guide sleeve and is fixedly connected to the hammer head located outside the guide sleeve.

3. The adjustable striking device for large animal experiments according to claim 1, characterized in that, The buckle assembly further includes a drive assembly for moving the buckle base, the drive assembly comprising: The first guide rail is arranged along the first direction, and the buckle base is disposed inside the first guide rail; A guide screw, wherein the guide screw is disposed along the first guide rail and both ends are connected to the bearings of the first guide rail, and the buckle plate base is threadedly connected to the guide screw; and, A drive motor is connected to one end of the guide screw via a coupling.

4. The adjustable striking device for large animal experiments according to claim 1, characterized in that, The diameter adjustment component includes: An adjusting arm is provided, one end of which is rotatably mounted on the fixed base, and the other end of which extends into the fixed cavity. A limiting sleeve, rotatably mounted on the fixed sleeve, and the adjusting arm slidingly passing through the limiting sleeve; and A roller is rotatably mounted on one end of the adjusting arm located in the fixed cavity.

5. The adjustable striking device for large animal experiments according to claim 1, characterized in that, The adjustment component includes: A first base, the first base being fixed to the fixed base; A second base, connected to the fixed sleeve, and capable of rotation; and, An adjusting shaft is smoothly connected to the first base and simultaneously threadedly connected to the second base.

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