CN204678990U - Carry the flinger of messenger - Google Patents

Abstract

The utility model discloses a projectile carrying a lead rope, which is used in field construction, fire rescue and other occasions. It includes an excitation device and a launch tube with a projectile and a sealed high-pressure air bag at the bottom of the tube. The outside of the tube mouth of the launch tube is equipped with a capture device with a guide rope. The mass of the projectile is greater than the sum of the combined mass of the capture device and the guide rope. The utility model is provided with a catching device at the nozzle of the ejector, and after the projectile is launched out of the nozzle, it is captured by the catching device and becomes one, and flies with the guide rope. The guide rope is arranged on the catch device instead of the projectile, so that the guide rope on the catch device can not be broken when the projectile is launched. Through the use of the capture device, the design of the projectile is more free, a more favorable aerodynamic shape can be adopted to ensure the range and accuracy, and the quality of the projectile can be optimized to reduce the recoil and improve energy utilization efficiency.

Description

catapult with lead

technical field

The utility model relates to a device for carrying a leading rope, in particular to a projectile for carrying a leading rope.

Background technique

At present, in field construction, fire rescue and other occasions, the ejector powered by gunpowder or compressed gas is often used. The projectile includes an excitation device and a launching tube, the excitation device is used to activate the compressed gas or gunpowder in the launching tube, and the compressed gas or gunpowder and projectiles are arranged in the projecting tube. In many cases, catapults need to carry a lead rope for the purpose of creating climbing paths or passing items. However, in the existing projectiles, the way that the guide rope is directly connected with the projectile (projectile) is mostly used. In order to ensure that the projectile has a certain initial velocity and range, the length of the pipe of the projectile should not be too short. At present, the conventional carrying guide rope There are mainly two types of projectiles in China, one is the short projectile structure as shown in Figure 1, and a short projectile with a lead wire is set in the launch tube. The short projectile type is characterized by small projectiles and high initial velocity, but the lead rope must Staying in the tube, it may be crushed or even broken by the projectile rushing out at high speed. The short projectile type projectile also has the phenomenon of turning around after launching, but the short projectile has little effect on the flight attitude. Another kind of long projectile structure as shown in Figure 2, a long projectile with a lead wire is arranged in the launch tube. The lead wire of the long projectile type is not easy to be injured, but the projectile is too long and heavy, the recoil force is large, the muzzle velocity is low, and the energy transfer The efficiency is low, and because the head is connected to the lead rope, the U-turn will occur due to the force change during the flight, and the accuracy and range will be affected. Therefore the use effect of above-mentioned two kinds of projectiles that carry lead rope is all poor.

Utility model content

The utility model provides a projectile carrying a lead rope, which improves the precision and shooting range of the projectile, ensures safe and effective launching, and improves the energy utilization rate.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A projectile carrying a lead rope, including a launch tube with a projectile and a high-pressure air bag at the bottom of the tube, an excitation device for controlling the high-pressure air bag, and a capture device with a lead rope tied to the outside of the launch tube mouth; the capture device is an elastic thin A hemispherical net or projectile head made of rope; the mass of the projectile is greater than the sum of the mass of the capture device and the lead wire.

The further improvement of the utility model is that: when the capturing device is a projecting head, the tail of the projecting head is connected with the mouth of the launching tube; Groove, the matching hole that matches the outer diameter of the barrel mouth of the launching tube, the maximum aperture of the preset groove is smaller than the aperture of the matching hole; the upper and lower parts of the projecting head are symmetrically provided with anchor hooks; the outer side of the tail of the projecting head A rope ring for binding the guide rope is provided.

The further improvement of the utility model is that: a positioning ring is arranged between the preset groove and the matching hole, and the inner diameter of the positioning ring is less than 95% of the projectile diameter.

The further improvement of the utility model is that: the shape of the end connecting the preset groove and the air hole matches the shape of the head of the projectile.

The further improvement of the utility model lies in that the preset groove is in interference fit with the projectile, and the length of the preset groove is greater than that of the projectile.

The further improvement of the utility model is that: the anchor hook is arranged radially symmetrically with respect to the outer surface of the projecting head.

Owing to having adopted above-mentioned technical scheme, the technical progress that the utility model obtains is:

The utility model is provided with a catching device at the nozzle of the ejector, and after the projectile is launched out of the nozzle, it is captured by the catching device and becomes one, and flies with the lead rope. The guide rope is arranged on the catch device instead of the projectile, so that the guide rope on the catch device can not be broken when the projectile is launched. Through the use of the capture device, the design of the projectile is more free, a more favorable aerodynamic shape can be adopted to ensure the range and accuracy, the quality of the projectile can be optimized to reduce the recoil of launch, and improve energy utilization efficiency.

The quality of the projectile of the utility model is less than the sum of the added masses of the catching device and the leading rope. According to the law of conservation of momentum and energy, suppose the mass of the projectile is m ₁ , the initial velocity is v ₁ , the initial kinetic energy of the projectile is E ₁ , the sum of the effective mass of the capturing device and the rope is m ₂ , the projectile, the capturing device and the effective The kinetic energy of the combination of lead ropes is E ₂ , and the following formula is given:

E ₁ /E ₂ =1+M ₂ /M ₁

It can be seen that in the process of energy loss, the loss rate is directly related to the size of m ₂ , and only by ensuring that m ₂ is smaller than m ₁ can the energy utilization rate of more than 50% be guaranteed.

When the catching device of the present invention is a hemispherical net cover, the catching device is suitable for a light-duty projectile. At this time, the catching device can be woven into a net cover with a high-strength and elastic string, and after connecting the guide rope, it can be placed on the launcher. On the mouth of the barrel, after the projectile is shot into the net sleeve, the net sleeve is taken away from the mouth of the barrel and shrinks naturally, and together with the projectile, it carries the guide rope and flies to the target. When the projectile is launched, there will be no risk of the guide rope being broken by the projectile, and the initial velocity, accuracy and range of the projectile can be guaranteed.

When the catching device of the utility model is set as a projecting head, it is suitable for creating a heavy-duty projectile for climbing paths. After the projectile is ejected, it enters the preset groove and is stuck, and flies to the target together with the capture device, and hangs on protrusions such as doors and windows through the anchor hook, creating conditions for rescuers to climb.

When the catching device of the utility model is set as a projectile head, a ventilation hole is provided in the front part, and the hole has two functions. During the launching process, the air in front of the projectile in the launching tube will push the projectile outward. If there is no such ventilation hole , the capture device is pushed away by the air pressure before the projectile makes contact. After firing, the stuck projectile can also be pushed out through the vent hole with a cleaning tool, so that the projectile and the catching tool are separated for the next use.

When the catching device of the utility model is set as a projectile head, a positioning ring is provided between the preset groove and the matching hole. The positioning ring can ensure that the projectile will not rebound after entering the preset groove, and the inner diameter of the positioning ring is smaller than the diameter of the projectile. 95% of the projectile can ensure that the projectile can enter the preset groove smoothly without bouncing out of the preset groove.

When the catching device of the utility model is set as a projectile head, the preset groove is in interference fit with the projectile to ensure that the projectile can be stuck in the preset groove; the length of the preset groove is greater than the length of the projectile, which can ensure that the projectile After deformation, they can still all enter the preset grooves.

Description of drawings

Fig. 1 is the structural representation of short projectile type ejector;

Fig. 2 is a schematic structural view of a long projectile ejector.

Fig. 3 is the structural representation that catcher of the present utility model is net;

Fig. 4 is the structural representation that the capturing device of the present invention is a projecting head;

Fig. 5 is a schematic diagram of a front view of the projecting head of the present invention;

Fig. 6 is the right side view of Fig. 5;

Among them: 1. Ventilation hole, 2. Anchor hook, 3. Preset groove, 4. Positioning ring, 5. Cooperating hole, 6. Launching tube, 7. Projectile, 8. High pressure air bag, 9. Net sleeve, 10. Projectile head, 11, tie rope ring.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Example 1

The ejector carrying the lead rope, as shown in Figure 3, comprises an excitation device, a launch tube 6 that is provided with a projectile 7 and a sealed high-pressure air bag 8 at the bottom of the tube, and the outside of the mouth of the launch tube 6 is covered with a capture device tied with a lead rope. The catching device is a net cover 9, the mouth of the net cover 9 is provided with an elastic rope, and the net cover 9 is placed on the mouth of the launch tube 6, the quality of the projectile 7 is greater than the sum of the added masses of the net cover 9 and the lead rope, To ensure sufficient energy utilization. Net cover 9 is formed by the string weaving of high strength and certain elasticity. After the net sleeve 9 is connected with the guide rope, it is placed on the mouth of the launch tube 6. The projectile 7 is pushed out by the high-pressure gas in the high-pressure air bag 8. After entering the net sleeve 9, the net sleeve 9 is taken away from the mouth of the cylinder and shrinks naturally, and is carried together with the projectile 7. The lead rope flies to the predetermined position.

Example 2

The projectile carrying the guide rope includes an excitation device, a launch tube 6 with a projectile 7 and a sealed high-pressure air bag 8 at the bottom of the tube, and a capture device with a guide rope is set on the outer side of the tube mouth of the launch tube 6 . As shown in FIG. 4 , the capturing device is a projectile head 10 made of metal, and the mass of the projectile 7 is greater than the sum of the combined mass of the projectile head 10 and the lead rope, so as to ensure sufficient energy utilization. The structure of the projectile head 10 is shown in Figure 5 and Figure 6, and the inside of the projectile head 10 is provided with a through hole from the head to the tail; Composed of matching holes 5, wherein a positioning ring 4 is set between the preset groove 3 and the matching hole 5 to prevent the projectile 7 from retreating. The diameter of the positioning ring 4 is less than 95% of the diameter of the projectile so as to ensure that the projectile can pass through the positioning ring 4 smoothly. Enter preset groove 3. The matching hole 5 matches the outer diameter of the barrel mouth of the launching tube 6 so that the entire projectile head 10 is set on the outside of the barrel opening of the launching barrel 6; the maximum aperture of the preset groove 3 is smaller than the aperture of the matching hole 5, so that the projectile 7 can pass through the fitting The hole 5 enters the preset groove 3; the preset groove 3 has an interference fit with the projectile 7 to ensure that the projectile 7 can be stuck in the preset groove 3; the length of the preset groove 3 is greater than the length of the projectile 7, which can ensure that the projectile 7 can still fully enter the preset groove 3 after slight deformation. The shape of the end connecting the preset groove 3 to the air hole 1 matches the shape of the head of the projectile 7 so that the projectile 7 can be more closely combined with the projectile head 10 . The outer surface of the projectile head 10 is provided with two anchor hooks 2 for hooking obstacles, and the anchor hooks 2 are arranged radially symmetrically with respect to the outer surface of the projectile head 10; tying rope ring 11 . When in use, start the excitation device to release the high-pressure gas in the high-pressure airbag 8, the high-pressure gas will eject the projectile 7, and the projectile 7 enters the preset groove 3 of the projectile head 10, driving the projectile head 10 to fly to a predetermined position together.

Claims (5)

1. carry the flinger of messenger, being provided with the launching tube (6) of bullet (7) and high-pressure gasbag (8) at the bottom of comprising tin, for controlling the excitation apparatus of high-pressure gasbag (8), it is characterized in that: outside the nozzle of launching tube (6), suit is tied with the trap setting of messenger; Described trap setting is the hemispheric net (9) that is woven into of elasticity cord or impelling head (10); The quality of bullet (7) is greater than the quality sum of trap setting and messenger.

2. the flinger carrying messenger according to claim 1, is characterized in that: when described trap setting is impelling head (10), and the afterbody of impelling head (10) is connected with launching tube nozzle; From the head side of impelling head (10), impelling head (10) inside sets gradually the passage (1), pre-groove (3), the mating holes (5) that matches with the nozzle external diameter of launching tube (6) that interconnect, and the maximum diameter of hole of described pre-groove (3) is less than the aperture of mating holes (5); Top, the bottom of described impelling head (10) are symmetrically arranged with grasp (2); The lateral tail of impelling head (10) is provided with the tied rope ring (11) for bundling messenger.

3. the flinger carrying messenger according to claim 2, is characterized in that: arrange a locating ring (4) between pre-groove (3) and mating holes (5), and the internal diameter of locating ring (4) is less than 95% of bullet (7) diameter.

4. the flinger carrying messenger according to claim 3, is characterized in that: pre-groove (3) is connected one end shape with passage (1) matches with the nose shape of bullet (7).

5. the flinger carrying messenger according to claim 4, is characterized in that: pre-groove (3) and bullet (7) interference fit, the length of pre-groove (3) is greater than the length of bullet (7).