Ejection rod locking mechanism

Abstract

The utility model relates to the technical field of ejection rods, in particular to an ejection rod locking mechanism which comprises an ejection air cylinder. A fixing sleeve is installed on the right side of the outer surface of the ejection air cylinder, a guide cylinder is installed on the right side of the inner surface of the fixing sleeve, a sliding rod is slidably connected into the guide cylinder, a base is installed on the left side surface of the sliding rod, and the fixing box is installed on the top surface of the guide cylinder; six threaded seats which are distributed in an array are mounted on the inner bottom surface of the fixed box; through the arrangement of the blocking piece, the proper fixing position of the first lantern ring can be selected according to the actual movement thread before ejection, the first lantern ring is fixedly installed on the outer surface of the guide cylinder through the first fixing bolt and the threaded seat, and in the ejection movement process of the sliding rod, the base will make contact with the blocking piece and be blocked by the blocking piece; therefore, the sliding rod is prevented from sliding continuously.

Description

Technical Field

[0001] The utility model relates to the technical field of ejection rods, in particular to an ejection rod locking mechanism. Background Art

[0002] The catapult rod locking mechanism is used on the deck of a ship to lock and unlock the catapult rod when the catapult rod launches an aircraft. Conventional locking mechanisms include hook locks, strut deflection locks, etc.

[0003] When in use, the existing ejection rod locking mechanism usually sets the locking limit structure at a fixed point to limit the position of the ejection slide. However, due to factors such as the thread of the ejection cylinder and the preset sliding distance of the ejection slide, the position of the locking limit structure cannot be flexibly adjusted, resulting in the ejection effect not meeting expectations.

[0004] Therefore, in order to address the problem that the above-mentioned existing ejection rod locking mechanism usually sets the locking limit structure at a fixed point when in use, which is inconvenient to adjust, a ejection rod locking mechanism can be designed. By setting a blocking piece, a suitable fixed position of the first ring can be selected according to the actual movement thread before ejection. The first ring is fixedly installed on the outer surface of the guide cylinder through the first fixing bolt and the threaded seat. During the ejection movement of the slide rod, the base will contact the blocking piece and be blocked by the blocking piece, thereby limiting the slide rod from continuing to slide. Utility Model Content

[0005] In order to overcome the problem that the existing ejection rod locking mechanism usually sets the locking limit structure at a fixed point when in use, but due to factors such as the thread of the ejection cylinder and the preset sliding distance of the ejection slide rod, the position of the locking limit structure cannot be flexibly adjusted, resulting in the ejection effect not meeting expectations.

[0006] The technical solution of the utility model is: a ejection rod locking mechanism, comprising an ejection cylinder; also comprising a fixing box, a threaded seat, a first collar, a through groove, a first fixing bolt, a mounting block and a blocking piece, a fixing sleeve is mounted on the right side of the outer surface of the ejection cylinder, a guide cylinder is mounted on the right side of the inner surface of the fixing sleeve, a sliding rod is slidably connected to the inside of the guide cylinder, a base is mounted on the left surface of the slide rod, a fixing box is mounted on the top surface of the guide cylinder, six threaded seats distributed in an array are mounted on the inner bottom surface of the fixing box, the inner surface of the threaded seat is connected to the first fixing bolt, the outer surface of the guide cylinder is slidably connected to the first collar, the first collar is fixed to the threaded seat by the first fixing bolt, symmetrical through grooves are opened on the front and rear side surfaces of the guide cylinder, mounting blocks are mounted on the positions of the inner surface of the first collar corresponding to the through grooves, and blocking pieces are mounted on the opposite surfaces of the two mounting blocks.

[0007] Preferably, by setting a baffle, a suitable fixing position of the first collar can be selected according to the actual movement thread before ejection, and the first collar is fixedly mounted on the outer surface of the guide cylinder by the first fixing bolt and the threaded seat. During the ejection movement of the slide rod, the base will contact and be blocked by the baffle, thereby limiting the slide rod from continuing to slide, thereby solving the problem that the existing ejection rod locking mechanism is usually set at a fixed point when in use and cannot limit the displacement distance of the ejection rod.

[0008] Preferably, the upper and lower side surfaces of the mounting block are fitted with the upper and lower inner surfaces of the corresponding through groove, and the mounting block is slidably connected to the through groove. By fitting the mounting block with the through groove, a limiting effect can be exerted on the first ring, thereby improving the accuracy of the first ring when sliding and avoiding deviation in the concentricity of the first ring and the slide rod and other components.

[0009] Preferably, one end of six circumferentially distributed dampers is installed on the right side surface of the first ring, a spring is sleeved on the outer surface of the damper, the other end of the damper is connected to the second ring, a second fixing bolt is provided on the upper surface of the second ring, and the second ring is fixed to the threaded seat by the second fixing bolt. By arranging the damper and the spring, the damper and the spring can provide elastic buffering for the first ring during ejection, thereby improving the service life of the device.

[0010] Preferably, four circumferentially distributed guide grooves are provided on the outer surface of the guide cylinder, and the first ring and the second ring are slidably connected to the guide grooves through sliders on their inner surfaces. By setting the guide grooves, the moving directions of the first ring and the second ring can be limited, thereby improving the installation accuracy.

[0011] Preferably, a limiting ring is installed at the right end of the inner surface of the guide cylinder, and the inner surface of the limiting ring slides in contact with the outer surface of the slide rod. By setting the limiting ring, the slide rod can be restricted to avoid shaking of the slide rod when sliding.

[0012] Preferably, the mounting block is connected to the first ring and the baffle by welding, and the inner ring diameter of the baffle is smaller than the diameter of the base. By connecting the mounting block to the first ring and the baffle by welding, the overall connection strength can be improved, and the connection point of the baffle can be prevented from loosening when the baffle is hit by the base.

[0013] Preferably, the distance between the center points of the first ring and the second ring is equal to the distance between two adjacent threaded seats. By setting the distance between the first ring and the second ring to be equal to the distance between two adjacent threaded seats, it can be ensured that after the first ring is fixed, the position of the second ring is always above an adjacent threaded seat, which facilitates quick installation.

[0014] Beneficial effects of the utility model:

[0015] 1. By providing a blocking piece, a suitable fixing position of the first collar can be selected according to the actual movement thread before ejection, and the first collar is fixedly mounted on the outer surface of the guide cylinder by the first fixing bolt and the threaded seat. During the ejection movement of the slide rod, the base will contact and be blocked by the blocking piece, thereby limiting the slide rod from continuing to slide. This solves the problem that the existing ejection rod locking mechanism is usually set at a fixed point when in use and cannot limit the displacement distance of the ejection rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a ejection rod locking mechanism of the present invention;

[0017] Figure 2 Shown is a schematic diagram of the three-dimensional structure of a blocking piece of the ejection rod locking mechanism of the present invention;

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional structure of a damper of the ejection rod locking mechanism of the utility model;

[0019] Figure 4 Shown is a schematic diagram of the explosion structure of a ejection rod locking mechanism of the present invention.

[0020] Explanation of the accompanying drawings: 1. ejection cylinder; 2. fixing sleeve; 3. guide cylinder; 4. slide rod; 5. fixing box; 6. threaded seat; 7. first ring; 8. through groove; 9. first fixing bolt; 10. mounting block; 11. baffle; 12. base; 13. damper; 14. spring; 15. second ring; 16. second fixing bolt; 17. guide groove; 18. limit ring. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figures 1-4The utility model provides a kind of embodiment: a catapult lever locking mechanism, including ejector cylinder 1;Still including fixed box 5, threaded seat 6, first ring 7, through groove 8, first fixed bolt 9, mounting block 10 and baffle 11, the outer surface right side of ejector cylinder 1 is equipped with fixed sleeve 2, the inner surface right side of fixed sleeve 2 is equipped with guide cylinder 3, the inside sliding connection of guide cylinder 3 has slide 4, the left side surface of slide 4 is equipped with base 12, the top surface of guide cylinder 3 is equipped with fixed box 5, the inside bottom surface of fixed box 5 is equipped with the array distribution of six threaded seats 6, the inner surface of threaded seat 6 is connected with first fixed bolt 9, the outer surface sliding connection of guide cylinder 3 has first ring 7, first ring 7 is fixed with threaded seat 6 by first fixed bolt 9, the front and rear two side surfaces of guide cylinder 3 are equipped with symmetrical through groove 8, the inner surface of first ring 7 is equipped with mounting block 10 correspondingly through groove 8 position, the opposite surface of two mounting blocks 10 is equipped with baffle 11, by setting baffle 11, before catapulting, the appropriate fixed position of first ring 7 can be selected according to actual motion thread, first ring 7 is fixedly installed on the outer surface of guide cylinder 3 by first fixed bolt 9 and threaded seat 6, during the process of ejecting movement of slide 4, base 12 will be contacted with baffle 11 and be blocked by baffle 11.

[0023] Please refer to Figure 1-Figure 3 In the embodiment, the upper and lower two side surfaces of mounting block 10 are attached to the upper and lower two inner surfaces corresponding to through groove 8, mounting block 10 is slidingly connected with through groove 8, by attaching mounting block 10 and through groove 8, the first ring 7 can be limited, the precision of first ring 7 when sliding is improved, the concentricity deviation of first ring 7 and slide 4 and other components is avoided, and the right side surface of first ring 7 is equipped with one end of six circumferentially distributed dampers 13, the outer surface of damper 13 is sleeved with spring 14, the other end of damper 13 is connected with second ring 15, the upper surface of second ring 15 is provided with second fixed bolt 16, second ring 15 is fixed with threaded seat 6 by second fixed bolt 16, by setting damper 13 and spring 14, when ejecting, damper 13 and spring 14 can provide elastic buffer for first ring 7, so as to improve the service life of the device, and the outer surface of guide cylinder 3 is provided with four circumferentially distributed guide grooves 17, first ring 7 and second ring 15 are slidingly connected with guide grooves 17 through the sliding blocks on the inner surfaces thereof, by setting guide grooves 17, the moving direction of first ring 7 and second ring 15 can be limited, and the mounting precision is improved.

[0024] Please refer to Figures 1-4The first and second locking members 15 are connected to each other by a plurality of locking members 12, and the locking member 10 is connected to the first and second locking members 15 by a plurality of locking members 12.

[0025] During operation, by fitting the mounting block 10 with the through groove 8, the first ring 7 can be limited, the accuracy of the first ring 7 during sliding can be improved, and the concentricity deviation between the first ring 7 and the slide rod 4 and other components can be avoided. In addition, by arranging the damper 13 and the spring 14, the damper 13 and the spring 14 can provide elastic buffering for the first ring 7 during ejection, thereby improving the service life of the device. In addition, by arranging the guide groove 17, the moving direction of the first ring 7 and the second ring 15 can be limited, the installation accuracy can be improved, and by arranging the limit ring 18 can limit the slide bar 4 to prevent the slide bar 4 from shaking when sliding, and by connecting the mounting block 10 with the first ring 7 and the baffle 11 by welding, the overall connection strength can be improved to prevent the baffle 11 from loosening at the connection point when it is hit by the base 12, and by setting the distance between the first ring 7 and the second ring 15 to be equal to the distance between the two adjacent threaded seats 6, it can be ensured that after the first ring 7 is fixed, the position of the second ring 15 is always above an adjacent threaded seat 6, which is convenient for quick installation.

[0026] Through the above steps, by setting the baffle 11, the appropriate fixing position of the first collar 7 can be selected according to the actual movement thread before ejection, and the first collar 7 is fixedly installed on the outer surface of the guide cylinder 3 through the first fixing bolt 9 and the threaded seat 6. During the ejection movement of the slide rod 4, the base 12 will contact with the baffle 11 and be blocked by the baffle 11, thereby limiting the slide rod 4 from continuing to slide, thereby solving the problem that the existing ejection rod locking mechanism is usually set at a fixed point when in use and cannot limit the displacement distance of the ejection rod.

Claims

1. A ejection rod locking mechanism, comprising an ejection cylinder (1); characterized in that: The ejection cylinder (1) further comprises a fixing box (5), a threaded seat (6), a first collar (7), a through groove (8), a first fixing bolt (9), a mounting block (10) and a baffle (11); a fixing sleeve (2) is mounted on the right side of the outer surface of the ejection cylinder (1); a guide cylinder (3) is mounted on the right side of the inner surface of the fixing sleeve (2); a slide rod (4) is slidably connected to the inside of the guide cylinder (3); a base (12) is mounted on the left side surface of the slide rod (4); a fixing box (5) is mounted on the top surface of the guide cylinder (3); and an inner bottom surface of the fixing box (5) is mounted on the bottom surface of the fixing box (5). Six threaded seats (6) are installed in an array distribution, the inner surface of the threaded seat (6) is connected with a first fixing bolt (9), the outer surface of the guide cylinder (3) is slidably connected with a first ring (7), the first ring (7) is fixed to the threaded seat (6) through the first fixing bolt (9), the front and rear side surfaces of the guide cylinder (3) are provided with symmetrical through grooves (8), the inner surface of the first ring (7) is provided with mounting blocks (10) at positions corresponding to the through grooves (8), and the opposite surfaces of the two mounting blocks (10) are provided with blocking pieces (11).

2. The ejection rod locking mechanism according to claim 1, characterized in that: The upper and lower surfaces of the mounting block (10) fit in contact with the upper and lower inner surfaces of the corresponding through-groove (8), and the mounting block (10) is slidably connected to the through-groove (8).

3. The ejection rod locking mechanism according to claim 1, characterized in that: One end of six circumferentially distributed dampers (13) is mounted on the right side surface of the first sleeve ring (7), a spring (14) is sleeved on the outer surface of the damper (13), the other end of the damper (13) is connected to the second sleeve ring (15), a second fixing bolt (16) is provided on the upper surface of the second sleeve ring (15), and the second sleeve ring (15) is fixed to the threaded seat (6) through the second fixing bolt (16).

4. The ejection rod locking mechanism according to claim 3, characterized in that: The outer surface of the guide cylinder (3) is provided with four guide grooves (17) distributed circumferentially, and the first ring (7) and the second ring (15) are slidably connected to the guide grooves (17) via sliders on their inner surfaces.

5. The ejection rod locking mechanism according to claim 1, characterized in that: A limiting ring (18) is installed at the right end of the inner surface of the guide cylinder (3), and the inner surface of the limiting ring (18) is fitted and slid with the outer surface of the slide rod (4).

6. The ejection rod locking mechanism according to claim 1, characterized in that: The mounting block (10) is connected to the first collar (7) and the baffle (11) by welding, and the inner diameter of the baffle (11) is smaller than the diameter of the base (12).

7. The ejection rod locking mechanism according to claim 3, characterized in that: The distance between the center points of the first collar (7) and the second collar (15) is equal to the distance between two adjacent threaded seats (6).

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