A sleeve-type transverse folding wing deployment and locking mechanism

Abstract

The present invention discloses a sleeve-type transverse folding wing deployment and locking mechanism, which includes a limiting cylinder, a spring, a movable cylinder, a torsion bar, and a fixed cylinder; the inner cylinder wall of the limiting cylinder is provided with a first limiting block; the movable cylinder is provided with a first limiting hole; the first outer cylinder wall of the movable cylinder is inserted into the limiting cylinder and is provided with a second limiting block; the outer circumference of the second outer cylinder wall is sleeved with a limiting cylinder and a spring; the fourth outer cylinder wall is provided with two symmetrical wedge-shaped inclined planes; the two ends of the spring abut against the limiting cylinder and the movable cylinder; the fixed cylinder is provided with a second limiting hole; the inner cylinder wall of the fixed cylinder is provided with a wedge-shaped slot; when the fourth outer cylinder wall is inserted into the fixed cylinder, the wedge-shaped inclined plane is engaged with the corresponding wedge-shaped slot; one end of the torsion bar is shaped to match the first limiting hole, and the other end is shaped to match the second limiting hole. This deployment and locking mechanism can effectively improve integration and reduce space occupation.

Description

Technical Field

[0001] The present invention relates to the technical field of deployment and locking, and in particular to a sleeve-type transverse folding wing deployment and locking mechanism. Background Art

[0002] Missile launchers are evolving towards miniaturization, portability, and storability. Many tactical missiles are launched from box or canister launchers. To adapt missiles to and match these miniaturized launchers and further reduce their size, aircraft with folding wings have emerged and are finding widespread use. Currently, the wings of missiles with transversely folding wings fold into contact with the inner wall of the launch tube. After launch, the wings deploy under the power of a drive mechanism and are locked in place by a locking mechanism.

[0003] There are many different types of lateral folding wing deployment and locking mechanisms available both domestically and internationally. These deployment methods include pneumatic, electric, hydraulic, and elastic elements, and locking devices include locking pins and latches. Using elastic elements as the driving force for deployment offers high reliability and a simple structure. However, existing deployment and locking mechanisms using elastic elements are less integrated and require more space.

[0004] Therefore, the inventors found that it is necessary to develop a transverse folding and unfolding wing locking mechanism with high integration and small space occupation. Summary of the Invention

[0005] In view of this, the present invention provides a sleeve-type transverse folding wing deployment and locking mechanism, which can effectively improve the integration and reduce the occupied space.

[0006] The present invention adopts the following specific technical solutions:

[0007] A sleeve-type transverse folding wing deployment locking mechanism, the deployment locking mechanism comprising a limit cylinder, a spring, a movable cylinder, a torsion bar and a fixed cylinder;

[0008] Along the axial direction of the limiting cylinder, the limiting cylinder, the spring, the movable cylinder and the fixed cylinder are arranged in sequence; the limiting cylinder, the movable cylinder and the fixed cylinder are all hollow structures;

[0009] The inner cylinder wall of the limiting cylinder is provided with a first limiting block;

[0010] A first limiting hole is provided in the movable cylinder; along the direction from the limiting cylinder toward the fixed cylinder, the movable cylinder is provided with a first outer cylinder wall, a second outer cylinder wall, a third outer cylinder wall, and a fourth outer cylinder wall connected in sequence; the first outer cylinder wall is inserted into the limiting cylinder and is provided with a second limiting block capable of abutting against the first limiting block; the outer circumference of the second outer cylinder wall is sleeved with a limiting cylinder and a spring; the fourth outer cylinder wall is provided with two symmetrical wedge-shaped inclined planes;

[0011] The two ends of the spring abut against the limiting cylinder and the moving cylinder;

[0012] A second limiting hole is provided in the fixed cylinder; a wedge-shaped slot is provided on the inner wall of the fixed cylinder, which corresponds to and matches the wedge-shaped inclined plane in a one-to-one manner; when the fourth outer cylinder wall is inserted into the fixed cylinder, the wedge-shaped inclined plane is engaged in the corresponding wedge-shaped slot;

[0013] One end of the torsion bar is shaped to match the first limiting hole to prevent the torsion bar from rotating relative to the movable cylinder; the other end of the torsion bar is shaped to match the second limiting hole to prevent the torsion bar from rotating relative to the fixed cylinder.

[0014] Furthermore, the first limiting block and the second limiting block are both arc-shaped limiting blocks;

[0015] The central angle corresponding to the arc length of the first limit block along the circumferential direction is 45°;

[0016] The second limiting block is staggered with the first limiting block, and when the second limiting block abuts against the first limiting block, the wedge-shaped inclined plane and the wedge-shaped slot are exactly opposite to each other along the axial direction;

[0017] The axial length of the first limiting block is half of the axial length of the limiting cylinder.

[0018] Furthermore, the angle between the wedge-shaped inclined plane and the axis of the movable cylinder is 3°.

[0019] Furthermore, the cross-sectional shape of the two ends of the torsion bar is polygonal, and the cross-sectional shape of the middle part is circular;

[0020] The first limiting hole and the second limiting hole are both polygonal holes;

[0021] A circular hole matching the shape of the middle portion of the torsion bar is provided in both the fixed cylinder and the movable cylinder.

[0022] Furthermore, the limiting cylinder, the spring, the third outer cylinder wall and the fixed cylinder have the same outer diameter;

[0023] The outer diameter of the first outer cylinder wall is smaller than the inner diameter of the limiting cylinder;

[0024] The second outer cylinder wall is in clearance fit with the limiting cylinder;

[0025] The outer diameter of the fourth outer tube wall is smaller than the outer diameter of the third outer tube wall;

[0026] The inner diameter of the third outer tube wall and the inner diameter of the fourth outer tube wall are both equal to the outer diameter of the middle portion of the torsion bar;

[0027] The first limiting hole is set through the first outer tube wall and the second outer tube wall;

[0028] The second limiting hole is provided at an end of the fixed cylinder away from the movable cylinder.

[0029] Beneficial effects:

[0030] (1) The sleeve-type transverse folding wing unfolding locking mechanism of the present invention includes a limiting cylinder, a spring, a movable cylinder, a torsion bar and a fixed cylinder, a first limiting block is provided on the inner cylinder wall of the limiting cylinder, a first outer cylinder wall at one end of the movable cylinder is inserted into the limiting cylinder, and a second limiting block capable of abutting against the first limiting block is provided on the first outer cylinder wall; a limiting cylinder and a spring are sleeved on the outer peripheral side of the second outer cylinder wall; both ends of the spring abut against the limiting cylinder and the movable cylinder, so as to provide a driving force for the movable cylinder to move axially; the fourth outer cylinder wall is provided with two symmetrical wedge-shaped inclined planes; the inner cylinder wall of the fixed cylinder is provided with a wedge-shaped inclined plane The wedge-shaped slots correspond to each other in shape; when the fourth outer cylinder wall is inserted into the fixed cylinder, the wedge-shaped inclined plane is clamped in the corresponding wedge-shaped slot to achieve locking; one end of the torsion bar is matched with the first limiting hole in the movable cylinder to prevent the torsion bar from rotating relative to the movable cylinder; the other end of the torsion bar is matched with the second limiting hole in the fixed cylinder to prevent the torsion bar from rotating relative to the fixed cylinder; during the use of the above-mentioned deployment locking mechanism, the movable cylinder is fixedly installed on the movable wing of the folding wing, and the limiting cylinder and the fixed cylinder are fixedly installed on the fixed wing of the folding wing. When the movable wing needs to be folded onto the fixed wing, the movable cylinder is driven by external force. When the compression spring is axially moved toward one side of the limit cylinder, the wedge-shaped inclined plane of the movable cylinder leaves the wedge-shaped slot of the fixed cylinder, thereby unlocking the folding wings; the movable cylinder is then rotated to drive one end of the torsion bar to rotate, thereby realizing the lateral folding of the folding wings and storing energy in the torsion bar; when the folding wings need to be unfolded, the movable cylinder is elastically driven by the torsion bar and rotates until the second limit block of the movable cylinder is blocked by the first limit block of the limit cylinder, and the folding wings are unfolded into place, realizing the lateral unfolding function of the folding wings; driven by the spring, the movable cylinder is pushed axially toward one side of the fixed cylinder, so that the wedge-shaped inclined plane of the movable cylinder is engaged with the fixed cylinder. The locking function of the folding wings is realized in the wedge-shaped groove of the fixed cylinder; therefore, the above-mentioned deployment locking mechanism realizes the automatic locking of the transverse folding wings by driving the axial movement of the movable cylinder by the spring, and realizes the automatic deployment of the transverse folding wings by driving the rotation of the movable cylinder by the torsion bar. The sleeve structure is adopted to merge the deployment mechanism and the locking mechanism, which improves the integration of the entire deployment locking mechanism and effectively reduces the space occupied by the deployment locking mechanism. It has the characteristics of simple and compact structure, fewer required parts, and simple and quick operation. It is suitable for the deployment and locking of transverse folding wings under different load conditions.

[0031] (2) Since the above-mentioned unfolding and locking mechanism has a high degree of integrity after being unfolded and locked, a gap is avoided between the movable wing and the fixed wing of the folding wing, so that the folding wing has a good aerodynamic layout.

[0032] (3) The two ends of the torsion bar of the above-mentioned unfolding locking mechanism adopt polygonal cross-sections, while the middle part adopts a circular cross-section, and polygonal limiting holes that match the shape of the polygonal ends of the torsion bar and circular holes that match the shape of the round rod in the middle of the torsion bar are provided on the fixed cylinder and the movable cylinder, thereby preventing the ends of the torsion bar from rotating relative to the fixed cylinder and the movable cylinder, making the structure stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the telescopic transverse folding wing unfolding and locking mechanism of the present invention;

[0034] Figure 2 This is a cross-sectional view of the sleeve-type transverse folding wing deployment and locking mechanism of the present invention when deployed and locked;

[0035] Figure 3 A cross-sectional view of the sleeve-type transverse folding wing unfolding locking mechanism provided by the present invention when folded and unlocked;

[0036] Figure 4 A schematic diagram of the three-dimensional structure of the moving cylinder from one perspective;

[0037] Figure 5 This is a schematic diagram of the three-dimensional structure of the moving cylinder from another perspective.

[0038] Among them, 1-limiting cylinder, 2-spring, 3-moving cylinder, 4-torsion bar, 5-fixed cylinder, 6-first limiting block, 7-second limiting block, 8-wedge-shaped inclined plane, 9-wedge-shaped slot, 10-first outer cylinder wall, 11-second outer cylinder wall, 12-third outer cylinder wall, 13-fourth outer cylinder wall, 14-first limiting hole DETAILED DESCRIPTION

[0039] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0040] The embodiment of the present invention provides a sleeve-type transverse folding wing deployment and locking mechanism, such as Figure 1 、 Figure 2 and Figure 3 As shown in the structure, the deployment locking mechanism includes a limiting cylinder 1, a spring 2, a movable cylinder 3, a torsion bar 4 and a fixed cylinder 5;

[0041] Along the axial direction of the limiting cylinder 1, the limiting cylinder 1, the spring 2, the movable cylinder 3 and the fixed cylinder 5 are arranged in sequence; the limiting cylinder 1, the movable cylinder 3 and the fixed cylinder 5 are all hollow structures;

[0042] The inner wall of the limiting cylinder 1 is provided with a first limiting block 6; the first limiting block 6 is provided at one end of the limiting cylinder 1 away from the moving cylinder 3;

[0043] A first limiting hole 14 is provided in the movable cylinder 3; Figure 4 and Figure 5As shown in the structure, along the direction from the limiting cylinder 1 toward the fixed cylinder 5, the movable cylinder 3 is provided with a first outer cylinder wall 10, a second outer cylinder wall 11, a third outer cylinder wall 12 and a fourth outer cylinder wall 13 connected in sequence; the first outer cylinder wall 10 is inserted into the limiting cylinder 1 and is provided with a second limiting block 7 that can abut against the first limiting block 6; the outer circumference of the second outer cylinder wall 11 is sleeved with the limiting cylinder 1 and the spring 2; the fourth outer cylinder wall 13 is provided with two symmetrical wedge-shaped inclined planes 8; the angle between the wedge-shaped inclined planes 8 and the axis of the movable cylinder 3 is 3°;

[0044] The two ends of the spring 2 abut against the limiting cylinder 1 and the movable cylinder 3, and are used to provide a driving force for the movable cylinder 3 to move axially toward the fixed cylinder 5;

[0045] A second limiting hole is provided in the fixed cylinder 5; a wedge-shaped slot 9 is provided on the inner cylinder wall of the fixed cylinder 5, which corresponds to and matches the wedge-shaped inclined plane 8 in a one-to-one manner; when the fourth outer cylinder wall 13 is inserted into the fixed cylinder 5, the wedge-shaped inclined plane 8 is engaged in the corresponding wedge-shaped slot 9; the first limiting block 6 limits the rotation angle of the second limiting block 7, so that the second limiting block 7 stops rotating when it rotates to abut against the first limiting block 6. At this time, the wedge-shaped inclined plane 8 of the movable cylinder 3 is exactly opposite to the wedge-shaped slot 9 of the fixed cylinder 5;

[0046] The torsion bar 4 is accommodated in the movable cylinder 3 and the fixed cylinder 5, and one end of the torsion bar 4 is matched with the shape of the first limiting hole 14 to prevent the torsion bar 4 from rotating relative to the movable cylinder 3; the other end of the torsion bar 4 is matched with the shape of the second limiting hole to prevent the torsion bar 4 from rotating relative to the fixed cylinder 5; by plugging and fitting the two ends of the torsion bar 4 with the first limiting hole 14 and the second limiting hole, one end of the torsion bar 4 is twisted and deformed relative to the other end when the movable cylinder 3 rotates, thereby storing elastic force; the torsion bar 4 is used to provide elastic rotational force for the reset of the movable cylinder 3.

[0047] During use of the above-mentioned sleeve-type transverse folding wing unfolding and locking mechanism, the movable cylinder 3 is fixedly installed on the movable wing of the folding wing, and the limiting cylinder 1 and the fixed cylinder 5 are fixedly installed on the fixed wing of the folding wing. When the movable wing needs to be folded onto the fixed wing, the movable cylinder 3 is driven by external force to axially move the compression spring 2 toward one side of the limiting cylinder 1, and the wedge-shaped inclined plane 8 of the movable cylinder 3 leaves the wedge-shaped slot 9 of the fixed cylinder 5, thereby unlocking the folding wing. Figure 3 As shown in the structure; the movable cylinder 3 is rotated again, so that the movable cylinder 3 drives one end of the torsion bar 4 to rotate, thereby realizing the lateral folding of the folding wings and storing energy in the torsion bar 4; when the folding wings need to be unfolded, the movable cylinder 3 is rotated under the elastic drive of the torsion bar 4 until the second limit block 7 of the movable cylinder 3 contacts the first limit block 6 of the limit cylinder 1, and the folding wings are unfolded into place, realizing the lateral unfolding function of the folding wings; the movable cylinder 3 is driven by the spring 2 to move axially toward the side of the fixed cylinder 5, so that the wedge-shaped inclined plane 8 provided on the fourth outer cylinder wall 13 enters the wedge-shaped card groove 9 of the fixed cylinder 5 and is engaged, thereby realizing the locking of the movable and fixed wings of the folding wings, as shown in FIG. Figure 2 The structure is shown.

[0048] The above-mentioned deployment and locking mechanism realizes automatic locking of the transverse folding wings by driving the axial movement of the movable cylinder 3 through the spring 2, and realizes automatic deployment of the transverse folding wings by driving the rotation of the movable cylinder 3 through the torsion bar 4. It adopts a sleeve structure to merge the deployment mechanism and the locking mechanism, thereby improving the integration of the entire deployment and locking mechanism, effectively reducing the space occupied by the deployment and locking mechanism, and has the characteristics of simple and compact structure, fewer required parts, and simple and quick operation. It is suitable for the deployment and locking of transverse folding wings under different load conditions.

[0049] Since the above-mentioned deployment and locking mechanism has a high degree of integrity after being deployed and locked, a gap is avoided between the movable wing and the fixed wing of the folding wing, so that the folding wing has a good aerodynamic layout.

[0050] In a specific embodiment, Figure 1 As shown in the structure, the first limit block 6 and the second limit block 7 are both arc-shaped limit blocks; the central angle corresponding to the arc length of the first limit block 6 along the circumferential direction is 45°; the central angle corresponding to the arc length of the second limit block 7 along the circumferential direction can also be 45°; the second limit block 7 is staggered with the first limit block 6, and when the second limit block 7 is against the first limit block 6, the wedge-shaped inclined plane 8 and the wedge-shaped slot 9 are exactly opposite in the axial direction; the axial length of the first limit block 6 is half of the axial length of the limit cylinder 1.

[0051] Furthermore, the torsion bar 4 has polygonal cross-sections at both ends and a circular cross-section in the middle. Both the first limiting hole 14 and the second limiting hole are polygonal. Both the fixed cylinder 5 and the movable cylinder 3 are provided with circular holes that match the shape of the middle portion of the torsion bar 4. In actual use, the polygonal shape can be any shape, such as a triangle, quadrilateral, rectangle, square, trapezoid, pentagon, or star.

[0052] The torsion bar 4 of the above-mentioned unfolding locking mechanism has polygonal cross-sections at both ends and a circular cross-section in the middle. Polygonal limiting holes that match the shape of the polygonal ends of the torsion bar 4 and circular holes that match the round rod shape in the middle of the torsion bar 4 are provided on the fixed cylinder 5 and the movable cylinder 3, thereby preventing the ends of the torsion bar 4 from rotating relative to the fixed cylinder 5 and the movable cylinder 3, making the structure stable and reliable.

[0053] Specifically, the limiting cylinder 1, the spring 2, the third outer cylinder wall 12 and the fixed cylinder 5 have the same outer diameter; the outer diameter of the first outer cylinder wall 10 is smaller than the inner diameter of the limiting cylinder 1; the second outer cylinder wall 11 is clearance-fitted with the limiting cylinder 1; the outer diameter of the fourth outer cylinder wall 13 is smaller than the outer diameter of the third outer cylinder wall 12; the inner diameter of the third outer cylinder wall 12 and the inner diameter of the fourth outer cylinder wall 13 are both equal to the outer diameter of the middle part of the torsion bar 4; the first limiting hole is set through the first outer cylinder wall 10 and the second outer cylinder wall 11; the second limiting hole is set at the end of the fixed cylinder 5 away from the moving cylinder 3.

[0054] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sleeve-type transverse folding wing unfolding and locking mechanism, characterized in that: It includes a limiting cylinder, a spring, a moving cylinder, a torsion bar and a fixed cylinder; Along the axial direction of the limiting cylinder, the limiting cylinder, the spring, the movable cylinder and the fixed cylinder are arranged in sequence; the limiting cylinder, the movable cylinder and the fixed cylinder are all hollow structures; The inner cylinder wall of the limiting cylinder is provided with a first limiting block; A first limiting hole is provided in the movable cylinder; along the direction from the limiting cylinder toward the fixed cylinder, the movable cylinder is provided with a first outer cylinder wall, a second outer cylinder wall, a third outer cylinder wall, and a fourth outer cylinder wall connected in sequence; the first outer cylinder wall is inserted into the limiting cylinder and is provided with a second limiting block capable of abutting against the first limiting block; the outer circumference of the second outer cylinder wall is sleeved with a limiting cylinder and a spring; the fourth outer cylinder wall is provided with two symmetrical wedge-shaped inclined planes; The two ends of the spring abut against the limiting cylinder and the moving cylinder; A second limiting hole is provided in the fixed cylinder; a wedge-shaped slot is provided on the inner wall of the fixed cylinder, which corresponds to and matches the wedge-shaped inclined plane in a one-to-one manner; when the fourth outer cylinder wall is inserted into the fixed cylinder, the wedge-shaped inclined plane is engaged in the corresponding wedge-shaped slot; One end of the torsion rod is shaped to fit in the first limiting hole to prevent the torsion rod from rotating relative to the movable cylinder; the other end of the torsion rod is shaped to fit in the second limiting hole to prevent the torsion rod from rotating relative to the fixed cylinder; The second limiting block is staggered with the first limiting block, and when the second limiting block abuts against the first limiting block, the wedge-shaped inclined plane and the wedge-shaped slot are exactly opposite to each other along the axial direction.

2. The sleeve-type transverse folding wing unfolding and locking mechanism according to claim 1, characterized in that: The first limiting block and the second limiting block are both arc-shaped limiting blocks; The central angle corresponding to the arc length of the first limit block along the circumferential direction is 45°; The axial length of the first limiting block is half of the axial length of the limiting cylinder.

3. The telescopic transverse folding wing unfolding and locking mechanism according to claim 1, characterized in that: The included angle between the wedge-shaped inclined plane and the axis of the movable cylinder is 3°.

4. The sleeve-type transverse folding wing unfolding and locking mechanism according to claim 1, characterized in that: The cross-sectional shape of the two ends of the torsion bar is polygonal, and the cross-sectional shape of the middle part is circular; The first limiting hole and the second limiting hole are both polygonal holes; A circular hole matching the shape of the middle portion of the torsion bar is provided in both the fixed cylinder and the movable cylinder.

5. The sleeve-type transverse folding wing unfolding and locking mechanism according to any one of claims 1 to 4, characterized in that: The limiting cylinder, the spring, the third outer cylinder wall and the fixed cylinder have the same outer diameter; The outer diameter of the first outer cylinder wall is smaller than the inner diameter of the limiting cylinder; The second outer cylinder wall is in clearance fit with the limiting cylinder; The outer diameter of the fourth outer tube wall is smaller than the outer diameter of the third outer tube wall; The inner diameter of the third outer tube wall and the inner diameter of the fourth outer tube wall are both equal to the outer diameter of the middle portion of the torsion bar; The first limiting hole is set through the first outer tube wall and the second outer tube wall; The second limiting hole is provided at an end of the fixed cylinder away from the movable cylinder.

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