Calibrator for soft bomb launcher

Abstract

The utility model relates to the technical field of soft bomb toy launchers, in particular to a calibrator for a soft bomb launcher, which comprises a hollow calibrator body communicated with the launcher, and the inner diameter of the calibrator body is larger than the outer diameter of a soft bomb. A trumpet-shaped expanding section is formed at the outlet end of the calibrator body; a plurality of spiral grooves are formed in the inner wall of the calibrator body and penetrate through the expanding section. Through the calibrator, the flight stability of the soft bomb can be improved, the drop numerical value of the initial speed of the launcher is reduced, and the repeated utilization rate of the soft bomb is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soft bullet toy launchers, in particular to a calibrator used for soft bullet launchers. Background Art

[0002] The soft bullet projectile of the soft bullet launcher toy is a long non-expanding sponge. After being blown out by the high-pressure gas of the launcher, the flight trajectory is irregular and the landing points are widely dispersed during the flight due to air resistance, which will also affect the range of the soft bullet.

[0003] In the prior art, a Chinese invention patent document with publication number CN111467812A and publication date July 31, 2020 is proposed. The technical solution disclosed in the patent document is as follows: a water bullet toy launching tube, comprising a launching tube body, a through hole for guiding the ejection of a water bullet, the inner diameter of the through hole being smaller than the outer diameter of the water bullet, and the through hole being used to squeeze the water bullet to form an ellipsoid, and the spiral texture formed by twisting the guide tube layer drives the water bullet in the through hole to rotate according to a predetermined spiral trajectory formed by the spiral space.

[0004] When the above technical solution is applied to soft bullet toys, it is a solution that actively interferes with the flight trajectory of the soft bullet. Since the inner diameter of the through hole is smaller than the outer diameter of the soft bullet and a positive thread line is provided, the soft bullet projectile will be interfered by contact and extrusion when passing through the launch tube, forming friction on the soft bullet projectile. The raised edge line of the groove section of the spiral pattern is called the positive line, and the concave edge line of the groove section is called the negative line, where both the negative line and the positive line are in contact with the soft bullet projectile. The farther the spiral pattern is from the inner diameter of the negative line, the stronger the interference to the motion trajectory of the soft bullet, and at the same time, it will increase the consumption of the flight kinetic energy and reduce the initial velocity of the soft bullet when it flies away from the launcher, that is, reduce the initial velocity. If the initial velocity of the soft bullet launcher is reduced too much, the range of the soft bullet will also be reduced; at the same time, because it adopts the method of active intervention of the soft bullet, the spiral texture will also squeeze the surface of the soft bullet to form dents. After the same projectile is used multiple times, the smoothness and uniformity of the outer diameter surface will be destroyed, which is not conducive to the repeated use of the soft bullet; and the launcher will have a certain amount of redundant gas after ejecting the soft bullet, which will be discharged at the same time as the soft bullet is ejected from the launch tube mouth of the launcher. These redundant gas volumes will form irregular turbulence at the tail of the soft bullet when it flies out of the launch tube mouth, which will also affect the dispersion of the soft bullet launcher. Summary of the invention

[0005] In order to solve the above technical problems, the utility model proposes a calibrator for a soft bullet launcher, which can improve the flight stability of the soft bullet, reduce the drop value of the initial velocity of the launcher, and also improve the reuse rate of the soft bullet.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A calibrator for a soft bullet launcher comprises a hollow calibrator body connected to the launcher, wherein the inner diameter of the calibrator body is larger than the outer diameter of the soft bullet; a trumpet-shaped diameter expansion section is formed at the outlet end of the calibrator body; a plurality of spiral grooves are arranged on the inner wall of the calibrator body and penetrate the diameter expansion section.

[0008] The inner diameter of the calibrator body is 0.1 mm to 0.2 mm larger than the outer diameter of the soft bullet.

[0009] The width of the positive line of the groove section edge is greater than the width of the negative line of the section edge.

[0010] The inlet end of the calibrator body is also connected with a transition section matched with the transmitter.

[0011] The inner diameter of the calibrator body is smaller than the inner diameter of the transition section.

[0012] The calibrator body and the transition section are integrally formed.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. In the utility model, the calibrator adopts a non-contact engraved thread structure. When the soft bullet flies to the engraved thread part, i.e., the groove part, in the calibrator body, the inner diameter of the calibrator body is larger than the outer diameter of the soft bullet, and is therefore in a non-contact or micro-contact state. In an ideal state, the soft bullet and the calibrator body are in an absolutely coaxial non-contact state, and no additional friction is generated. Therefore, the initial shooting velocity of the soft bullet launcher is not reduced, and the reuse rate of the soft bullet is also improved.

[0015] The outlet end of the calibrator body is formed with a trumpet-shaped expansion section, and a groove runs through the expansion section, that is, the engraved thread line also spreads outward along the inner wall of the expansion section, so that the redundant gas volume after the launcher ejects the soft bullet is gradually diffused outward in a spiral cone shape, eliminating the irregular airflow, that is, the tail turbulence, when the soft bullet flies away from the mouth of the launch tube, further improving the accuracy of the calibrator and the flight stability of the soft bullet.

[0016] 2. In the present invention, the inner diameter of the calibrator body is 0.1 mm to 0.2 mm larger than the outer diameter of the soft bullet, which can effectively avoid severe pressure release and cause the performance of the transmitter to decline.

[0017] 3. The width of the positive line of the groove section edge is greater than the width of the negative line of the section edge, which can effectively avoid excessive pressure release.

[0018] 4. The setting of the transition section facilitates better connection with the transmitter.

[0019] 5. The inner diameter of the calibrator body is smaller than the inner diameter of the transition section, so that the inner wall of the inlet end of the calibrator body protrudes outward from the inner wall of the transition section, forming a step that can be abutted against the launch tube of the launcher, achieving a good limiting and positioning effect.

[0020] 6. The calibrator body and the transition section are integrally formed, which makes processing and use more convenient and the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementations, wherein:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the outlet end of the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the inlet end of the utility model;

[0024] Figure 3 The cross-sectional structure of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 4 The cross-sectional structure of the utility model is shown in FIG. Figure 2 ;

[0026] Figure 5 The cross-sectional structure of the utility model is shown in FIG. Figure 3 ;

[0027] Figure 6 This is a schematic diagram of the exterior structure of the utility model;

[0028] Markings in the figure:

[0029] 1. Calibrator body, 2. Expansion section, 3. Groove, 4. Transition section, 5. Step. DETAILED DESCRIPTION

[0030] Example 1

[0031] As a basic implementation of the utility model, the utility model includes a calibrator for a soft bullet launcher, including a hollow calibrator body 1. This embodiment does not limit the connection relationship between the calibrator body 1 and the launcher, and can be a detachable connection or a non-detachable connection, as long as the calibrator body 1 can be connected to the launcher and the soft bullet launched from the launcher can enter the calibrator body 1.

[0032] Furthermore, the inner diameter of the calibrator body 1 can be slightly larger than the outer diameter of the soft bullet, so that the soft bullet launched from the launcher is in a non-contact or micro-contact state with the inner wall of the calibrator body 1. A trumpet-shaped expansion section 2 is also formed at the outlet end of the calibrator body 1. A plurality of spiral grooves 3 are provided on the inner wall of the calibrator body 1 and penetrate the expansion section 2.

[0033] Example 2

[0034] As a preferred embodiment of the utility model, the utility model includes a calibrator for a soft bullet launcher, including a hollow calibrator body 1. The inner diameter of the calibrator body 1 is larger than the outer diameter of the soft bullet. Specifically, the inner diameter of the calibrator body 1 is 0.1 mm to 0.2 mm larger than the outer diameter of the soft bullet. The inlet end of the calibrator body 1 can be threaded or pinned to the launcher so that the calibrator body 1 is connected to the launcher. The outlet end of the calibrator body 1 is formed with a trumpet-shaped expansion section 2.

[0035] The inner wall of the calibrator body 1 is provided with a plurality of spiral grooves 3, and the grooves 3 penetrate the expanded diameter section 2. In order to avoid excessive pressure relief, the width of the positive line of the cross-sectional edge of the groove 3 is greater than the width of the negative line of the cross-sectional edge. The positive line specifically refers to the cross-sectional edge line of the groove portion consistent with the inner diameter, and the negative line specifically refers to the cross-sectional edge line of the groove portion inside the groove 3.

[0036] Example 3

[0037] As another preferred embodiment of the present invention, the present invention includes a calibrator for a soft bullet launcher, including a hollow calibrator body 1. Specifically, a transition section 4 that matches the launcher is also connected to the inlet end of the calibrator body 1. The launcher and the transition section 4 can be detachably connected or non-detachably connected, so that the calibrator body 1 is connected to the launcher.

[0038] The inner diameter of the calibrator body 1 is larger than the outer diameter of the soft bullet. A trumpet-shaped diameter expansion section 2 is formed at the outlet end of the calibrator body 1. A plurality of spiral grooves 3 are provided on the inner wall of the calibrator body 1, and the grooves 3 pass through the diameter expansion section 2.

[0039] Example 4

[0040] As the best embodiment of the utility model, the utility model includes a calibrator for a soft bullet launcher, including a hollow calibrator body 1, the inner diameter of the calibrator body 1 is larger than the outer diameter of the soft bullet. Specifically, the inner diameter of the calibrator body 1 is slightly larger than the outer diameter of the soft bullet by 0.1 mm to 0.2 mm, so as to avoid serious pressure release and cause the performance of the launcher to decline. Figure 1 And the instruction manual Figure 3The outlet end of the calibrator body 1 is formed with a trumpet-shaped expansion section 2. The inner wall of the calibrator body 1 is provided with a plurality of spiral grooves 3, and a certain inclination angle is formed between the grooves 3 and the axis of the calibrator body 1, forming an intaglio thread structure. Furthermore, the grooves 3 penetrate the expansion section 2 and spread outward with the inner diameter of the expansion section 2. Figure 5 In order to avoid excessive pressure relief, the width of the positive line of the cross-section edge of the groove 3 is greater than the width of the negative line of the cross-section edge. Among them, the cross-section edge line of the groove portion consistent with the inner diameter is the positive line, and the cross-section edge line of the groove portion inside the groove 3 is the negative line. The positive line does not directly contact the soft elastic.

[0041] For further information, please refer to the attached manual. Figure 2 And the instruction manual Figure 4 The inlet end of the calibrator body 1 is also connected to a transition section 4. Figure 6 , the calibrator body 1 and the transition section 4 are integrally formed. The inner diameter of the calibrator body 1 is smaller than the inner diameter of the transition section 4, so that a step 5 is formed between the calibrator body 1 and the transition section 4. When the calibrator body 1 needs to be used in conjunction with the launch tube of the launcher, the inner diameter of the calibrator body 1 matches the inner diameter of the launch tube, and the inner diameter of the transition section 4 matches the outer diameter of the launch tube. The launch tube of the launcher is inserted into the transition section 4 and abutted against the step 5 to achieve good positioning and limiting work, and then the transition section 4 is connected to the launch tube by an adhesive or a connector.

[0042] Through the above-mentioned connection method, the launch tube is connected to the calibrator body 1. The soft bullet is pushed to fly by the high air pressure at the tail in the launch tube, which is a highly airtight state. When it flies to the calibrator body 1 provided with the intaglio thread line, the intaglio thread line, i.e., the spiral groove 3, will remove a part of the high air pressure at the tail of the soft bullet, and it will form a spiral airflow wall with the guidance of the intaglio thread line. This spiral airflow wall will evenly form an oblique force on the surface of the soft bullet projectile, so that it will produce a coaxial rotation spin, achieving the same effect as the positive thread line calibrator. At the same time, because of the effect of this 360° uniform rotation force, the soft bullet can be kept in the center position of the calibrator body 1 to fly. In an ideal state, the soft bullet and the inner diameter of the calibrator body 1 are in an absolutely coaxial non-contact state, and no additional friction is generated, so the initial shooting speed of the soft bullet launcher will not be reduced. The outlet end of the calibrator body 1 is in a conical diffusion shape, and the engraved thread line, i.e. the groove, also diffuses outward along the inner diameter of the conical tube wall, gradually diffusing the redundant gas volume after the launcher ejects the soft bullet out of the launcher in a spiral cone shape, eliminating the irregular airflow when the soft bullet flies away from the launch tube mouth, and further improving the accuracy of the calibrator.

[0043] Finally, the spiral airflow wall intervenes in the flight posture of the soft bullet, and the force is uniform, which can effectively reduce the dispersion of the projectile landing point. The intervened soft bullet presents a right-spinning forward flight posture, which conforms to the Bernoulli principle and can increase the flight landing distance of the soft bullet.

[0044] To sum up, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.

Claims

1. A calibrator for a soft bullet launcher, characterized in that: The calibrator body (1) is hollow and connected to the launcher, wherein the inner diameter of the calibrator body (1) is larger than the outer diameter of the soft bullet; a trumpet-shaped expanded diameter section (2) is formed at the outlet end of the calibrator body (1); and a plurality of spiral grooves (3) are provided on the inner wall of the calibrator body (1) and penetrate the expanded diameter section (2).

2. The calibrator for a soft bullet launcher according to claim 1, characterized in that: The inner diameter of the calibrator body (1) is 0.1 mm to 0.2 mm larger than the outer diameter of the soft elastic.

3. The calibrator for a soft bullet launcher according to claim 1, characterized in that: The width of the positive line of the cross-sectional edge of the groove (3) is greater than the width of the negative line of the cross-sectional edge.

4. The calibrator for a soft bullet launcher according to claim 1, characterized in that: The inlet end of the calibrator body (1) is also connected to a transition section (4) that matches the transmitter.

5. The calibrator for a soft bullet launcher according to claim 1, characterized in that: The inner diameter of the calibrator body (1) is smaller than the inner diameter of the transition section (4).

6. The calibrator for a soft bullet launcher according to claim 1, characterized in that: The calibrator body (1) and the transition section (4) are integrally formed.

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