Miniature ejection device

Abstract

The utility model relates to the technical field of ejection devices, in particular to a miniature ejection device which comprises an energy storage cylinder, the outer surface of the energy storage cylinder is in threaded connection with an installation cylinder, the inner wall of the installation cylinder is fixedly connected with a partition plate, a spring is arranged in the energy storage cylinder, and the inner wall of the energy storage cylinder is in sliding connection with a movable ring. The interior of the moving ring is in threaded connection with an ejection rod, and the outer surface of the ejection rod is in threaded connection with a limiting disc. Compared with the prior art, the energy storage cylinder, the mounting cylinder, the partition plate, the spring, the moving ring, the ejection rod, the limiting disc, the baffle ring, the limiting structure, the support and the ejection cylinder are arranged in a matched mode, the distance that the ejection rod can move in the ejection cylinder can be adjusted, and therefore the distance that an object ejected by the ejection rod moves can be adjusted; the miniature ejection device can perform ejection operation at a large distance, the application range of the miniature ejection device is expanded, and the practicability and the structural flexibility of the miniature ejection device are improved.

Description

Technical Field

[0001] This utility model relates to the field of catapult technology, and in particular to a miniature catapult device. Background Technology

[0002] With the development of modern technology and industry, the demand for catapult devices is constantly increasing. Commonly used catapult devices include electromagnetic catapults, hydraulic catapults, steam catapults, and spring catapults. Unlike other catapult devices, spring catapults have the advantages of simpler structure, wider application range, and lower manufacturing and maintenance costs. Therefore, spring catapults are widely used, and miniature catapult devices are required in some catapult simulation experiments.

[0003] However, traditional miniature spring ejection devices also have some limitations. During operation, spring ejection devices eject objects by compressing the spring and using the spring's reaction force. Since the spring force is specific, the object can only be ejected a specific distance each time. This makes it inconvenient to adjust the ejection distance in simulation experiments according to actual conditions, reducing the practicality of miniature ejection devices. Therefore, a miniature ejection device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a miniature ejection device to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] To achieve the above objectives, one embodiment of this utility model provides a miniature catapult device, including an energy storage cylinder, an installation cylinder threadedly connected to the outer surface of the energy storage cylinder, a partition plate fixedly connected to the inner wall of the installation cylinder, a spring disposed inside the energy storage cylinder, a movable ring slidably connected to the inner wall of the energy storage cylinder, a catapult rod threadedly connected to the inner surface of the movable ring, a limit plate threadedly connected to the outer surface of the catapult rod, a retaining ring fixedly connected to the outer surface of the catapult rod, a limiting structure for limiting the retaining ring disposed on the installation cylinder, a bracket fixedly connected to the outer surface of the retaining ring, and a catapult cylinder fixedly connected to one side of the bracket.

[0007] Preferably, in any of the above embodiments, the limiting structure includes a mounting frame, a rotating rod, a blocking block, a return spring, a guide wheel, an electromagnet, an iron disc, a slider, and a connecting rope. The mounting frame is fixedly connected to the outer surface of the mounting cylinder. A rotating rod is rotatably connected to one end of the mounting frame. A blocking block is fixedly connected to one end of the rotating rod. A return spring, which is fixedly connected to the mounting frame, is fixedly connected to one side of the rotating rod. A guide wheel is rotatably connected inside the mounting frame. An electromagnet is fixedly installed on the inner wall of the mounting cylinder. An iron disc is slidably connected inside the mounting cylinder. A slider is fixedly connected to the outer surface of the iron disc. A connecting rope, which is connected to the rotating rod, is fixedly connected to one side of the slider.

[0008] Preferably, in any of the above embodiments, the outer surface of the mounting cylinder is provided with a groove that communicates with the interior of the mounting cylinder, the slider is located inside the groove, and the slider is slidably connected to the groove.

[0009] Preferably, as described in any of the above embodiments, a fixing bracket is fixedly connected to the outer surface of the mounting cylinder.

[0010] Preferably, one end of the spring is in contact with the partition plate, and the other end of the spring is in contact with the moving ring.

[0011] Preferably, in any of the above embodiments, the limiting disk is located inside the energy storage cylinder, the outer diameter of the limiting disk is adapted to the inner diameter of the energy storage cylinder, and the limiting disk is slidably connected to the energy storage cylinder.

[0012] Preferably, in any of the above embodiments, a portion of the ejection rod is located inside the ejection tube, the diameter of the ejection rod is adapted to the inner diameter of the ejection tube, and the ejection rod is slidably connected to the ejection tube.

[0013] Preferably, in any of the above embodiments, a portion of the connecting rope is located inside the guide wheel, and the connecting rope is rotatably connected to the guide wheel.

[0014] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0015] 1. By coordinating the energy storage cylinder, mounting cylinder, partition plate, spring, moving ring, ejector rod, limiting plate, retaining ring, limiting structure, bracket, and ejector tube, the distance that the ejector rod can move inside the ejector tube can be adjusted, thereby adjusting the distance that the object ejected by the ejector rod can move. This allows the miniature ejector device to perform ejection operations over a greater distance, expanding the applicability of the miniature ejector device and improving its practicality and structural flexibility.

[0016] 2. The installation cylinder and the energy storage cylinder are connected by threads, which makes the installation and disassembly of the installation cylinder more convenient. This makes it easier for the installation cylinder to no longer block one end of the energy storage cylinder and to expose the spring to the outside. This makes it easier to replace the spring when its elasticity decreases or it is damaged, ensuring that the spring can launch the object normally for a certain distance, and further improving the practicality of the miniature ejection device. Attached Figure Description

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0019] Figure 3 This is a front view structural diagram of the present utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0022] In the diagram: 1-energy storage cylinder, 2-mounting cylinder, 3-partition plate, 4-spring, 5-moving ring, 6-ejection rod, 7-limiting plate, 8-stopping ring, 9-limiting structure, 901-mounting bracket, 902-rotating rod, 903-blocking block, 904-reset spring, 905-guide wheel, 906-electromagnet, 907-iron disc, 908-slider, 909-connecting rope, 10-bracket, 11-ejection cylinder, 12-slide groove, 13-fixed bracket. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0024] like Figures 1 to 5As shown, a miniature catapult device includes an energy storage cylinder 1. A mounting cylinder 2 is threadedly connected to the outer surface of the energy storage cylinder 1. A partition 3 is fixedly connected to the inner wall of the mounting cylinder 2. One end of the energy storage cylinder 1 is tightly fitted to the partition 3. A spring 4 is installed inside the energy storage cylinder 1. A moving ring 5 is slidably connected to the inner wall of the energy storage cylinder 1. A catapult rod 6 is threadedly connected to the inside of the moving ring 5. The catapult rod 6 passes through the energy storage cylinder 1 and is slidably connected to the energy storage cylinder 1, allowing the catapult rod 6 to move smoothly. The outer surface of the ejector rod 6 is threadedly connected to a limiting disc 7. Both the limiting disc 7 and the moving ring 5 have through holes, which allow for easy rotation of the limiting disc 7 and the moving ring 5 using external tools. These through holes also facilitate the addition of lubricating oil to the inside of the energy storage cylinder 1, enabling smoother movement of the limiting disc 7 and the moving ring 5. A retaining ring 8 is fixedly connected to the outer surface of the ejector rod 6. A limiting structure 9 is provided on the mounting cylinder 2 to limit the movement of the retaining ring 8. A bracket 10 is fixedly connected to the outer surface of the retaining ring 8. A catapult 11 is fixedly connected to one side of the bracket 10. Under normal conditions, the limiting structure 9 limits the retaining ring 8, and the moving ring 5 compresses the spring 4, so that the spring 4 is in a compressed state. The item to be ejected is placed inside the catapult 11. When using this miniature catapult device, the limiting structure 9 is released from limiting the retaining ring 8. At this time, under the force of the spring 4, the moving ring 5 drives the catapult rod 6 to move, so that the catapult rod 6 ejects the item inside the catapult 11. When it is necessary to adjust the catapult distance, the adjusting plate 7 can be rotated and the limiting plate 7 can be adjusted to a suitable position. During the catapult process, as the moving plate 5 moves, the catapult rod 6 drives the limiting plate 7 to move. When the limiting plate 7 is in contact with the inner wall of the energy storage cylinder 1, the limiting plate 7 stops moving, so that the moving plate 5 and the catapult rod 6 stop moving. Thus, the distance that the catapult rod 6 moves inside the catapult 11 can be adjusted, thereby adjusting the distance at which the item inside the catapult 11 is ejected.

[0025] As an optional technical solution of this utility model, the limiting structure 9 includes a mounting frame 901, a rotating rod 902, a blocking block 903, a return spring 904, a guide wheel 905, an electromagnet 906, an iron plate 907, a slider 908, and a connecting rope 909. The mounting frame 901 is fixedly connected to the outer surface of the mounting cylinder 2. A rotating rod 902 is rotatably connected to one end of the mounting frame 901. A blocking block 903 is fixedly connected to one end of the rotating rod 902. When no object is being launched, the blocking block 903 is in contact with one side of the retaining ring 8, thereby limiting the retaining ring 8. A return spring 904, which is fixedly connected to the mounting frame 901, is fixedly connected to one side of the rotating rod 902. A guide wheel 905 is rotatably connected inside the mounting frame 901. An electromagnet 906 is fixedly installed on the inner wall of the mounting cylinder 2. A wire hole is provided on one side of the mounting cylinder 2, allowing the wire connected to the electromagnet 906 to pass through, thus facilitating the energization of the electromagnet 906. An iron disc 907 is internally slidably connected to the device. A slider 908 is fixedly connected to the outer surface of the iron disc 907. A connecting rope 909 connected to the rotating rod 902 is fixedly connected to one side of the slider 908. When using this miniature catapult device to launch an object, the electromagnet 906 is activated. At this time, the electromagnet 906 will attract the iron disc 907 and move the iron disc 907 towards the electromagnet 906. As the iron disc 906 moves, the slider 908 will drive the connecting rope 909 to move. Under the guidance and limiting action of the guide wheel 905, the rotating rod 902 drives the blocking block 903 to rotate, causing the blocking block 903 to separate from the retaining ring 8, thus no longer limiting the retaining ring 8. At this time, the retaining ring 8 and the catapult rod 6 can move to launch the object. During the rotation of the rotating rod 902, the return spring 904 is in a compressed state. When the electromagnet 906 is no longer energized, the return spring 904 can reset the rotating rod 902 and the iron disc 907.

[0026] As an optional technical solution of this utility model, the outer surface of the mounting cylinder 2 is provided with a sliding groove 12 that communicates with the inside of the mounting cylinder 2. The slider 908 is located inside the sliding groove 12 and is slidably connected to the sliding groove 12, so that the slider 908 and the iron plate 907 can smoothly move in a straight line along the direction of the sliding groove 12.

[0027] As an optional technical solution of this utility model, a fixing bracket 13 is fixedly connected to the outer surface of the mounting cylinder 2. The fixing bracket 13 can fix the micro catapult device in a specific position and prevent the micro catapult device from shifting position.

[0028] As an optional technical solution of this utility model, one end of the spring 4 is in contact with the partition 3, and the other end of the spring 4 is in contact with the moving ring 5, so that the spring 4 can produce elastic deformation as the moving ring 5 moves.

[0029] As an optional technical solution of this utility model, the limiting disk 7 is located inside the energy storage cylinder 1. The outer diameter of the limiting disk 7 is adapted to the inner diameter of the energy storage cylinder 1. The limiting disk 7 is slidably connected to the energy storage cylinder 1, so that the limiting disk 7 can slide smoothly inside the energy storage cylinder 1.

[0030] As an optional technical solution of this utility model, a part of the ejection rod 6 is located inside the ejection tube 11. The diameter of the ejection rod 6 is adapted to the inner diameter of the ejection tube 11. The ejection rod 6 is slidably connected to the ejection tube 11, so that the ejection rod 6 can slide smoothly inside the ejection tube 11 and eject the item located inside the ejection tube 11.

[0031] As an optional technical solution of this utility model, a part of the connecting rope 909 is located inside the guide wheel 905. The connecting rope 909 is tumblingly connected to the guide wheel 905. The guide wheel 905 guides and limits the connecting rope 909, and can change the direction of the connecting rope 909.

[0032] A miniature catapult device, the working principle of which is as follows:

[0033] Place the item to be ejected inside the ejection tube 11 and activate the electromagnet 906. The electromagnet 906 will attract the iron plate 907 and move it towards the electromagnet 906. As the iron plate 906 moves, the slider 908 will move the connecting rope 909. Under the guidance and limiting action of the guide wheel 905, the rotating rod 902 will drive the blocking block 903 to rotate, causing the blocking block 903 to separate from the retaining ring 8, thus no longer limiting the retaining ring 8. At this time, the retaining ring 8 and the ejection rod 6 can move, and the item inside the ejection tube 11 will be ejected by the ejection rod 6.

[0034] In summary, this miniature catapult device, through the coordinated arrangement of the energy storage cylinder 1, mounting cylinder 2, partition plate 3, spring 4, moving ring 5, catapult rod 6, limiting plate 7, retaining ring 8, limiting structure 9, bracket 10, and catapult cylinder 11, can adjust the distance that the catapult rod 6 can move inside the catapult cylinder 11. This allows for adjustment of the distance the object launched by the catapult rod 6 travels, enabling the miniature catapult device to perform catapult operations over greater distances. This expands the applicability of the miniature catapult device and improves its practicality and structural flexibility. The threaded connection between the mounting cylinder 2 and the energy storage cylinder 1 simplifies the installation and disassembly of the mounting cylinder 2, preventing the mounting cylinder 2 from obstructing one end of the energy storage cylinder 1 and allowing the spring 4 to be exposed. This facilitates replacement of the spring 4 when its elasticity decreases or it is damaged, ensuring that the spring 4 can launch objects a certain distance normally, further enhancing the practicality of the miniature catapult device.

Claims

1. A miniature catapult device, characterized in that: The device includes an energy storage cylinder (1), an installation cylinder (2) is threadedly connected to the outer surface of the energy storage cylinder (1), a partition (3) is fixedly connected to the inner wall of the installation cylinder (2), a spring (4) is provided inside the energy storage cylinder (1), a moving ring (5) is slidably connected to the inner wall of the energy storage cylinder (1), a catapult rod (6) is threadedly connected to the inside of the moving ring (5), a limit plate (7) is threadedly connected to the outer surface of the catapult rod (6), a retaining ring (8) is fixedly connected to the outer surface of the catapult rod (6), a limiting structure (9) is provided on the installation cylinder (2) to limit the retaining ring (8), a bracket (10) is fixedly connected to the outer surface of the retaining ring (8), and a catapult cylinder (11) is fixedly connected to one side of the bracket (10).

2. The miniature catapult device according to claim 1, characterized in that: The limiting structure (9) includes a mounting bracket (901), a rotating rod (902), a blocking block (903), a return spring (904), a guide wheel (905), an electromagnet (906), an iron disc (907), a slider (908), and a connecting rope (909). The mounting bracket (901) is fixedly connected to the outer surface of the mounting cylinder (2). One end of the mounting bracket (901) is rotatably connected to the rotating rod (902). A blocking block (903) is fixedly connected to one end of the rotating rod (902). A return spring (904) is fixedly connected to one side of the rod (902) and fixedly connected to the mounting bracket (901). A guide wheel (905) is rotatably connected inside the mounting bracket (901). An electromagnet (906) is fixedly installed on the inner wall of the mounting cylinder (2). An iron disc (907) is slidably connected inside the mounting cylinder (2). A slider (908) is fixedly connected to the outer surface of the iron disc (907). A connecting rope (909) connected to the rotating rod (902) is fixedly connected to one side of the slider (908).

3. A miniature catapult device according to claim 2, characterized in that: The outer surface of the mounting cylinder (2) is provided with a sliding groove (12) that communicates with the inside of the mounting cylinder (2). The slider (908) is located inside the sliding groove (12) and is slidably connected to the sliding groove (12).

4. A miniature catapult device according to claim 3, characterized in that: A fixing bracket (13) is fixedly connected to the outer surface of the mounting cylinder (2).

5. A miniature catapult device according to claim 4, characterized in that: One end of the spring (4) is in contact with the partition (3), and the other end of the spring (4) is in contact with the moving ring (5).

6. A miniature catapult device according to claim 5, characterized in that: The limiting disk (7) is located inside the energy storage cylinder (1), and the outer diameter of the limiting disk (7) is adapted to the inner diameter of the energy storage cylinder (1). The limiting disk (7) is slidably connected to the energy storage cylinder (1).

7. A miniature catapult device according to claim 6, characterized in that: A portion of the ejection rod (6) is located inside the ejection tube (11), the diameter of the ejection rod (6) is adapted to the inner diameter of the ejection tube (11), and the ejection rod (6) is slidably connected to the ejection tube (11).

8. A miniature catapult device according to claim 7, characterized in that: A portion of the connecting rope (909) is located inside the guide wheel (905), and the connecting rope (909) is tumblingly connected to the guide wheel (905).

Images