Ejection locking mechanism convenient to reuse

Abstract

The ejection locking mechanism convenient to reuse comprises an ejection seat, a counter bore is formed in one end of the ejection seat, an ejection inner core is arranged in the counter bore, a first spring is arranged between the ejection inner core and the bottom end of the counter bore, the elastic inner core is provided with a circle of inner concave, and a plurality of through holes are formed in the side wall of the counter bore. The ejection seat is provided with a limiting sleeve for limiting ejection of the ejection inner core, the limiting sleeve is provided with a limiting hole corresponding to the through hole, the limiting hole is provided with a limiting bead, the limiting bead is clamped into the through hole to be tangent to the outer wall of the ejection inner core, and the limiting sleeve is provided with an extending hole for pushing the ejection inner core to the bottom end of the counter bore; the ejection base is sleeved with an ejection assembly, the ejection assembly is provided with a clamping block used for being clamped to the limiting ball, and a second spring used for pushing out the ejection assembly is further arranged between the ejection assembly and the ejection base. According to the utility model, the catapulting mechanism which can axially trigger to unlock and is convenient to disassemble and capable of repeatedly replacing components is adopted, so that the safety and the stability during use are improved.

Description

Technical Field

[0001] The utility model relates to the field of training equipment, in particular to an ejection locking mechanism which is easy to reuse. Background Art

[0002] In bouncing explosive equipment, the main combat unit is usually placed in a semi-enclosed cavity, and the main combat unit is thrown out by the action in the cavity to provide bouncing power, so that the main combat unit can bounce to the designated target position and then explode, thereby improving the blasting effect. As the requirements for actual combat training become higher and higher, the demand and requirements for explosive equipment are also increasing. Requirements such as easy use, reusability, and obvious demonstration effect are gradually normalized in the tactical and technical indicators of training equipment. Some existing reusable locking structures generally achieve locking and recovery functions through structures such as pressing dislocation and radial buckles, and it is difficult to simulate the action of axially fired explosive equipment. Therefore, a ejection locking mechanism that can release the lock by axial firing, can repeatedly withstand large elastic force, is easy to use, reusable, and has reliable action / locking is needed to be applied to jumping mine simulation training equipment.

[0003] The utility model disclosed in CN221431953 U is a pull-pin type automobile built-in emergency window breaker, which includes a launch tube, a striker, a spring, two pull pins and a cable. When in use, a finger is inserted into and the pull ring of the cable is pulled, and the pull pin connected to the cable will be pulled out of the blind hole of the striker and the through hole of the launch tube as the cable is pulled, and the elastic potential energy of the spring is rapidly opened, and the striker is ejected from the launch tube at high speed under the tension of the spring and hits the glass, so that the glass is broken, thereby completing the blasting. Although there are certain improvements in portability and reusability, there are certain deficiencies in locking and working. Utility Model Content

[0004] The utility model aims to provide an ejection locking mechanism which is convenient for repeated use.

[0005] The innovation of the utility model lies in an ejection locking mechanism which can be axially fired to release the lock, can repeatedly withstand a large elastic force, is easy to use, can be reused, and has reliable and stable action / locking, thereby improving the safety and stability when the ejection locking mechanism is used.

[0006] To achieve the above-mentioned utility model purpose, the technical solution of the present utility model is: a catapult locking mechanism that is convenient for repeated use, including a catapult seat, characterized in that one end of the catapult seat is provided with a counterbore, a catapult inner core is arranged in the counterbore, a first spring is arranged between the catapult inner core and the bottom end of the counterbore, the elastic inner core is provided with a circle of inner concavity, several through holes are arranged on the side wall of the counterbore, a limit sleeve for restricting the ejection of the catapult inner core is arranged on the catapult seat, a limit hole corresponding to the through hole is arranged on the limit sleeve, a limit bead is arranged at the limit hole, the limit bead is stuck into the through hole and is tangent to the outer wall of the catapult inner core, and an insertion hole for pushing the catapult inner core towards the bottom end of the counterbore is arranged on the limit sleeve; a catapult assembly is sleeved outside the catapult seat, a block for clamping at the limit bead is arranged on the catapult assembly, and a second spring for pushing out the catapult assembly is further arranged between the catapult assembly and the catapult seat. Through the locking method of the limit bead being stuck into the through hole and tangent to the outer wall of the catapult inner core, the stability and safety of the overall mechanism are improved; through the first spring in the counterbore, when the catapult inner core extends towards the bottom end of the counterbore, a reset elastic force is provided, improving the convenience of installation and use.

[0007] Further, a first flange edge is arranged on the catapult seat, a second flange edge is arranged on the catapult assembly, and the second spring is located between the first flange edge and the second flange edge. The addition of the first flange edge and the second flange edge improves the locking effect and ejection effect of the second spring on the catapult assembly.

[0008] Further, the catapult seat is composed of a catapult base and a catapult shaft sleeve. One end of the catapult base is provided with a necking section, and one end of the catapult shaft sleeve is sleeved on the necking section and the other end forms a counterbore. Designing the catapult seat as a two-piece structure of a catapult base and a catapult shaft sleeve is convenient for production and manufacturing and mechanism assembly, improving the work efficiency of installation and disassembly.

[0009] Further, the elastic inner core is provided with a circle of inner concavity with a flared cross-section. By using the flared circle of inner concavity provided on the catapult inner core, when the first spring pushes the catapult inner core to reset, the limit bead can accurately enter the through hole, improving the stability of the limit bead during operation.

[0010] Further, the inner side surface of the cross-section of the through hole is flared. By setting the design of the inner side surface of the cross-section of the through hole to be flared, when the first spring pushes the catapult inner core to reset, it prevents the limit bead from getting stuck when entering the through hole.

[0011] Further, an annular buffer washer is arranged at the bottom of the limit sleeve. The addition of the annular buffer washer makes it not easy to damage the limit sleeve when the first spring pushes the catapult inner core to reset.

[0012] Further, the limit holes are arranged at equal intervals along the axial direction of the limit sleeve. By arranging the limit holes at equal intervals along the axial direction of the limit sleeve, the reset effect of the first spring can be controlled to meet different reset requirements.

[0013] Further, the ejection bushing and the necking section are connected in a spiral manner. The spiral connection between the ejection bushing and the necking section facilitates the assembly and disassembly of the ejection locking mechanism.

[0014] Further, the limiting sleeve and the ejection bushing are connected in a spiral manner. The spiral connection between the limiting sleeve and the ejection bushing facilitates the assembly and disassembly of the ejection locking mechanism.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, through the snap-in design of the limiting beads and the through holes, the precise locking of the ejection inner core is realized, improving the stability and safety of the overall mechanism; the elastic inner core is provided with a circle of inward concave and flared design to ensure that the limiting beads accurately enter the through holes during reset, avoiding jamming phenomena and further enhancing the stability.

[0017] 2. In the present utility model, the first spring in the counterbore provides the reset elastic force, facilitating the repeated use of the ejection mechanism and improving the overall convenience; the design of the annular buffer washer protects the limiting sleeve from being damaged during the reset process; the ejection seat is composed of an ejection base and an ejection bushing, adopting a spiral connection method, which is convenient for production and manufacturing and the assembly of the mechanism, and improves the efficiency of installation and disassembly.

[0018] 3. In the present utility model, by setting the first flange edge and the second flange edge, the locking effect and the ejection effect of the second spring on the ejection assembly are enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model.

[0020] In the figure:

[0021] 1. Ejection seat; 11. Ejection base; 12. Ejection bushing; 13. First flange edge; 14. Necking section; 2. Counterbore; 3. Ejection inner core; 31. Inward concave; 4. First spring; 5. Through hole; 6. Limiting sleeve; 61. Limiting hole; 62. Limiting bead; 63. Annular buffer washer; 7. Insertion hole; 8. Ejection assembly; 81. Block; 82. Second flange edge; 9. Second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings.

[0023] Embodiment 1: As Figure 1An ejection locking mechanism that is convenient for reuse is shown, including an ejection seat 1. The ejection seat 1 is composed of an ejection base 11 and an ejection bushing 12. One end of the ejection seat 1 is provided with a counterbore 2. An ejection inner core 3 is arranged in the counterbore 2. A first spring 4 is arranged between the ejection inner core 3 and the bottom end of the counterbore 2. The elastic inner core 3 is provided with a concave portion 31 in a circle and has a flared cross-section. A plurality of through holes 5 are arranged on the side wall of the counterbore 2. A limit sleeve 6 for restricting the ejection of the ejection inner core 3 is arranged on the ejection seat 1. The limit sleeve 6 is provided with a limit hole 61 corresponding to the through hole 5. A limit bead 62 is arranged at the limit hole 61. The limit bead 62 is stuck into the through hole 5 and is tangent to the outer wall of the ejection inner core 3. The limit sleeve 6 is provided with an insertion hole 7 for pushing the ejection inner core 3 towards the bottom end of the counterbore 2; An ejection assembly 8 is sleeved outside the ejection seat 1. The ejection assembly 8 is provided with a clamping block 81 for clamping at the limit bead 62. A second spring 9 for pushing out the ejection assembly 8 is further arranged between the ejection assembly 8 and the ejection seat 1. The ejection seat 1 is provided with a first flange 13 in a circle. The ejection assembly 8 is provided with a second flange 82 in a circle. The second spring 9 is located between the first flange 13 and the second flange 82. One end of the ejection base 11 is provided with a necking section 14. One end of the ejection bushing 12 is sleeved on the necking section 14 and the other end forms the counterbore 2. The inner side surface of the cross-section of the through hole 5 is flared. The bottom of the limit sleeve 6 is provided with an annular buffer washer 63. The limit holes 61 are arranged at equal intervals along the axial direction of the limit sleeve 6. The ejection bushing 12 and the necking section 14 are in a spiral connection. The limit sleeve 6 and the ejection bushing 12 are in a spiral connection.

[0024] The working principle of the present utility model is as follows: The second spring 9 is sleeved on the ejection seat 1. The ejection bushing 12 is spirally installed with the necking section 14 on the ejection base 11. The ejection assembly 8 is sleeved, so that the second spring 9 abuts against the second flange 82. The first spring 4 is first placed in the counterbore 2. The limit bead 62 is installed in the through hole 5, and then the ejection inner core 3 is installed. The limit sleeve 6 is spirally connected to the ejection bushing 12, so that the limit bead 62 is stuck into the through hole 5 and exposed from the limit hole 61, and the clamping block 81 on the ejection assembly 8 locks the ejection locking mechanism; An axial force is applied to the ejection inner core 3 along the bottom of the counterbore 2 in the insertion hole 7. The limit bead 62 falls into the concave portion 31. Due to the abutting force of the second spring 9, the clamping block 81 is unlocked at this time, and the ejection assembly 8 flies out; When replacing the ejection assembly 8, the ejection inner core 3 is adjusted so that the outer wall is tangent to the limit bead 62 and the clamping block 81 abuts against the limit bead 62. At this time, the second flange 82 and the second spring 9 are still in an abutting state, and the replacement is completed; By changing the range of the limit holes 61 on the limit sleeve 6, the reset effect of the first spring 4 can be changed.

[0025] In summary, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

Claims

1. An ejection locking mechanism convenient for repeated use, including an ejection seat, characterized in that, One end of the ejection seat is provided with a counterbore, an ejection inner core is arranged in the counterbore, a first spring is arranged between the ejection inner core and the bottom end of the counterbore, the ejection inner core is provided with a concave circle, a plurality of through holes are arranged on the side wall of the counterbore, a limiting sleeve for restricting the ejection of the ejection inner core is arranged on the ejection seat, a limiting hole corresponding to the through hole is arranged on the limiting sleeve, a limiting bead is arranged at the limiting hole, the limiting bead is clamped into the through hole and is tangent to the outer wall of the ejection inner core, and an insertion hole for pushing the ejection inner core towards the bottom end of the counterbore is arranged on the limiting sleeve; an ejection assembly is sleeved outside the ejection seat, a clamping block for clamping at the limiting bead is arranged on the ejection assembly, and a second spring for pushing out the ejection assembly is further arranged between the ejection assembly and the ejection seat.

2. The reusable ejection locking mechanism according to claim 1, characterized in that A first flange edge is arranged on the ejection seat in a circle, a second flange edge is arranged on the ejection assembly in a circle, and the second spring is located between the first flange edge and the second flange edge.

3. The reusable ejection locking mechanism according to claim 1, characterized in that, The ejection seat is composed of an ejection base and an ejection shaft sleeve. One end of the ejection base is provided with a necking section, one end of the ejection shaft sleeve is sleeved on the necking section, and the other end forms a counterbore.

4. The reusable ejection locking mechanism according to claim 1, characterized in that, The ejection inner core is provided with a concave circle with a flared cross section.

5. The reusable ejection locking mechanism according to claim 1, characterized in that, The inner side surface of the cross section of the through hole is flared.

6. The reusable ejection locking mechanism according to claim 1, characterized in that, An annular buffer gasket is arranged at the bottom of the limiting sleeve.

7. The reusable ejection locking mechanism according to claim 1, wherein, The limiting holes are arranged at equal intervals along the axial direction of the limiting sleeve.

8. The reusable ejection locking mechanism according to claim 3, wherein, The ejection shaft sleeve and the necking section are in a spiral connection.

9. The reusable ejection locking mechanism according to claim 1, characterized in that, The limiting sleeve and the ejection shaft sleeve are in a spiral connection.

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