A compression release mechanism

Abstract

The present invention relates to the field of aerospace technology, and discloses a compression release mechanism, comprising: a base, the base is mounted on a satellite body or a body, and an unlocking release chamber is provided inside the base; a slider, the slider is slidably connected to the inner wall of the unlocking release chamber; a locking assembly, the slider is slidably tied and then presses the locking assembly and limits one end of the locking assembly in the unlocking release chamber, and the other end of the locking assembly is used to press a pressing component on the satellite body or the body; a tension release assembly, the tension release assembly is mounted on the base, and the tension release assembly can press or unlock the abutment between the slider and the locking assembly; a separator, the separator is connected between the locking assembly and the compression component, and is used to make the locking assembly escape from the unlocking release chamber. The compression release mechanism has a fast response when working, generates a small impact, is pollution-free, and can be reused.

Description

Technical Field

[0001] The invention relates to the field of aerospace technology, and in particular to a compression release mechanism. Background Art

[0002] In the field of aerospace technology, the clamping and releasing mechanism is widely used, for example, in the deployment and release of antennas and solar panels, and the separation of rockets and satellites. The clamping and releasing mechanism can clamp and constrain the clamping component to the satellite body or body at certain stages, and can also release the constraint on the clamping component after receiving the command, so that the clamping component can be separated from the satellite body or body.

[0003] At present, the most commonly used compression and release mechanisms in the aerospace field are pyrotechnic devices, which use the combustion or explosion of gunpowder to release components. However, pyrotechnic devices will produce severe impacts on structures and components when working, which can easily damage electronic equipment and optical components on aerospace equipment, and the safety hazards are obvious. In addition, pyrotechnic devices can only be used once, which is easy to cause pollution, and the test cost is high. Special storage and transportation conditions are also required, which makes the application cost of pyrotechnic devices in the compression and release mechanisms in the aerospace field relatively high. Summary of the invention

[0004] The object of the present invention is to provide a compression release mechanism which generates less impact when working, is pollution-free and can be reused.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A compression release mechanism, comprising:

[0007] A base, the base is mounted on a satellite body or a body, and an unlocking release cavity is provided inside the base;

[0008] A slider, the slider being slidably connected to the inner wall of the unlocking and releasing cavity;

[0009] A locking assembly, wherein the slider is slidably tied and then pressed to tighten the locking assembly and one end of the locking assembly is limitedly pressed in the unlocking and releasing chamber, and the other end of the locking assembly is used to press the pressing component onto the satellite body or the body;

[0010] A tension release assembly, the tension release assembly being mounted on the base, and the tension release assembly being capable of tightening or unlocking the abutment between the slider and the locking assembly;

[0011] A separation member is connected between the locking assembly and the pressing component and is used to make the locking assembly escape from the unlocking and releasing cavity.

[0012] Preferably, the tensioning and releasing assembly comprises a hot knife assembly, a tensioning rope and a first spring, the hot knife assembly is mounted on the base, the first spring is connected between the base and the slider, the tensioning rope abuts against the hot knife assembly and pulls the slider to be pressed against the base.

[0013] Preferably, a second accommodating cavity is provided on the base, and the hot knife assembly is placed in the second accommodating cavity.

[0014] Preferably, the hot knife assembly comprises a hot knife resistor and a circuit board, the hot knife resistor is electrically connected to the circuit board, and the tension rope abuts against the hot knife resistor.

[0015] Preferably, the tension rope is made of polyethylene.

[0016] Preferably, the base is provided with a first connecting hole, a second connecting hole and a fastening screw, the first connecting hole is connected to the unlocking and releasing chamber, the second connecting hole is connected to the second accommodating chamber, the tightening rope is connected to the fastening screw, and the tightening rope is passed through the first connecting hole and the second connecting hole and tightened on the slider.

[0017] Preferably, it further comprises a bottom cover plate, which is connected to the base and covers the unlocking and releasing cavity and the second accommodating cavity.

[0018] Preferably, the sliding block is provided with a rope threading groove, and the tensioning rope is tightened in the rope threading groove.

[0019] Preferably, the locking assembly includes a locking block and a locking bolt, wherein the locking bolt is connected to the locking block, and the locking block is slid and tightened to press on the slider, and the separating piece is connected between the locking bolt and the pressing component.

[0020] Preferably, the separation member is configured as a second spring, and the second spring is compressively connected between the locking assembly and the pressing component.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a compression release mechanism, wherein a slider of the compression release mechanism is slidably connected to the inner wall of an unlocking release chamber of a base, and the slider is slidably tied and pressed on a locking assembly of the compression release mechanism, so that one end of the locking assembly is limitedly pressed in the unlocking release chamber. The tension release assembly of the compression release mechanism is installed on the base, and can compress or unlock the abutment between the slider and the locking assembly. The separation member of the compression release mechanism is connected between the locking assembly and the compression member, and the separation member is used to make the locking assembly escape from the unlocking release chamber.

[0023] Through the above structure, the clamping release mechanism can constrain the slider to abut against the locking assembly when not in operation, and limit and clamp one end of the locking assembly in the unlocking and releasing chamber, and the other end of the locking assembly presses the clamping component against the satellite body or the body by pressing the separating piece, thereby realizing the constraint between the clamping component and the satellite body or the body, and realizing the clamping function of the clamping release mechanism on the clamping component; when the clamping release mechanism is working, the tensioning release assembly is actuated to unlock the abutment of the slider against the locking assembly, and the separating piece acts on the locking assembly, so that one end of the locking assembly is disengaged from the unlocking and releasing chamber, and the other end of the locking assembly loses the pressing effect on the clamping component, and the clamping component is released from the satellite body or the body, thereby realizing the releasing function of the clamping release mechanism on the clamping component. The power for releasing the clamping component by the clamping release mechanism is provided by the separating piece. When working, it not only has a fast response and a small impact, but also avoids the use of pyrotechnic devices. It is not only pollution-free, but also can be reused, which is beneficial to reducing the use cost of the clamping release mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of a compression release mechanism provided in a specific embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of the clamping and releasing mechanism provided in a specific embodiment of the present invention after the bottom cover plate is removed.

[0026] In the figure:

[0027] 1. Base; 11. Unlocking release chamber; 111. Locking release; 12. Second accommodating chamber; 13. First connecting hole; 14. Second connecting hole; 15. Fastening screw; 2. Slider; 21. Rope threading groove; 3. Locking assembly; 31. Locking block; 311. Abutting lug; 32. Locking bolt; 4. Tension release assembly; 41. Hot knife assembly; 411. Hot knife resistor; 412. Circuit board; 42. Tension rope; 43. First spring; 5. Separator; 6. Bottom cover; 100. Pressing component. DETAILED DESCRIPTION

[0028] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The technical solutions provided by the specific implementation modes of the present invention are further described below.

[0032] This embodiment provides a compression release mechanism, such as Figure 1 and Figure 2 As shown, the clamping and releasing mechanism includes a base 1, a slider 2, a locking assembly 3, a tensioning and releasing assembly 4 and a separating piece 5. The base 1 is mounted on a satellite body or a body, the tensioning and releasing assembly 4 is mounted on the base 1, the slider 2 is slidably connected to the base 1, and can be slidably tightened to clamp one end of the locking assembly 3, the tensioning and releasing assembly 4 is used to clamp or unlock the abutment between the slider 2 and the locking assembly 3, the separating piece 5 is connected between the locking assembly 3 and the clamping component 100, and the other end of the locking assembly 3 can press the clamping component 100 onto the satellite body or the body through the separating piece 5.

[0033] The compression release mechanism can constrain the slider 2 to be pressed against the locking assembly 3 when not in operation, and limit and press one end of the locking assembly 3 against the base 1 to prevent the locking assembly 3 from being disengaged from the base 1. The other end of the locking assembly 3 presses the pressing component 100 against the satellite body or the body by pressing the separating piece 5, thereby realizing the pressing function of the pressing component 100. When the compression release mechanism is in operation, the tension release assembly 4 is activated to unlock the slider 2 from abutting against the locking assembly 3, and the separating piece 5 is activated to disengage one end of the locking assembly 3 from the base 1, and the other end of the locking assembly 3 loses the limiting and pressing effect on the pressing component 100, thereby realizing the release function of the pressing component 100. Since the power for releasing the pressing component 100 of the compression release mechanism is provided by the separating piece 5, it not only has a fast response and a small impact when in operation, but also can avoid the use of pyrotechnic devices, is not only pollution-free, but also can be reused, which is conducive to reducing the use cost of the compression release mechanism.

[0034] In this embodiment, an unlocking and releasing chamber 11 is provided inside the base 1, and the slider 2 is slidably connected to the inner wall of the unlocking and releasing chamber 11. The slider 2 can limit and press one end of the locking assembly 3 in the unlocking and releasing chamber 11, which can not only protect the slider 2, but also help to reduce the space occupied by the pressing and releasing mechanism. Preferably, a locking release opening 111 is provided on the unlocking and releasing chamber 11, and the locking assembly 3 is passed through the locking release opening 111, so that the end of the locking assembly 3 extending from the locking release opening 111 can press the pressing component 100. More preferably, a second accommodating chamber 12 is provided on the base 1, and some components of the tensioning and releasing assembly 4 are placed in the second accommodating chamber 12, which can not only protect some components of the tensioning and releasing assembly 4, but also help to reduce the space occupied by the pressing and releasing mechanism. In this embodiment, the clamping release mechanism also includes a bottom cover plate 6, which is connected to the base 1 and covers the unlocking and releasing cavity 11 and the second accommodating cavity 12, and can protect the components in the unlocking and releasing cavity 11 and the second accommodating cavity 12 to ensure their normal operation.

[0035] Preferably, if Figure 2As shown, the tension release assembly 4 includes a hot knife assembly 41, a tension rope 42 and a first spring 43. The hot knife assembly 41 is installed in the second accommodating chamber 12, the first spring 43 is connected between the base 1 and the slider 2, and the tension rope 42 abuts against the hot knife assembly 41. After being tied, the slider 2 can be pulled to press the first spring 43 to press it against the base 1, so that the first spring 43 is compressed and abuts between the base 1 and the slider 2. More preferably, the base 1 is provided with a first mounting groove, the slider 2 is provided with a second mounting groove, and the two ends of the first spring 43 are respectively placed in the first mounting groove and the second mounting groove, so as to facilitate the positioning of the first spring 43. In this embodiment, the base 1 is provided with a first connection hole 13, a second connection hole 14 and a fastening screw 15, the first connection hole 13 is connected to the unlocking release chamber 11, the second connection hole 14 is connected to the second accommodating chamber 12, the tension rope 42 is bolted to the fastening screw 15, the tension rope 42 passes through the first connection hole 13 and the second connection hole 14 and tightens the slider 2, so that the slider 2 keeps pressing the first spring 43 under the action of the tension rope 42, so that the slider 2 can press the locking assembly 3. Preferably, the slider 2 is provided with a rope threading groove 21, the tension rope 42 is tightened in the rope threading groove 21, and the rope threading groove 21 can position the tension rope 42, which is conducive to preventing the tension rope 42 from slipping off the slider 2.

[0036] In this embodiment, the hot knife assembly 41 includes a hot knife resistor 411 and a circuit board 412. The hot knife resistor 411 is electrically connected to the circuit board 412. The tension rope 42 abuts against the hot knife resistor 411, so that the hot knife resistor 411 can fuse the tension rope 42 after being energized and heated. Preferably, the tension rope 42 is made of polyethylene, which not only makes the tension rope 42 have excellent low temperature resistance and can be used in space environment, but also makes the tension rope 42 can be smoothly fused by the hot knife resistor 411.

[0037] Preferably, the locking assembly 3 includes a locking block 31 and a locking bolt 32, the threaded end of the locking bolt 32 is connected to the locking block 31, the slider 2 is tightened by the tension rope 42 and pressed against the locking block 31, the separator 5 is connected between the bolt head of the locking bolt 32 and the pressing component 100, and the separator 5 is pressed against the pressing component 100 by the locking bolt 32. More preferably, the locking block 31 is provided with an abutting lug 311, and the abutting lug 311 slides against the slider 2, so that the locking block 31 and the slider 2 can slide against each other. In this embodiment, the separator 5 is set as a second spring, and the second spring is compressed and abutted between the locking bolt 32 and the pressing component 100. The second spring can drive the locking assembly 3 to escape from the unlocking release chamber 11 through the locking release opening 111 when the slider 2 loses its abutment against the locking block 31.

[0038] The working process of the compression and release mechanism provided in this embodiment is described below.

[0039] When the clamping release mechanism is working, the hot knife resistor 411 is energized and heated, and the tensioning rope 42 is melted by the hot knife resistor 411, and the tensioning rope 42 loses the binding constraint on the slider 2. The first spring 43 stretches under the action of the elastic restoring force and drives the slider 2 to slide, so that the slider 2 is unlocked and abuts against the locking block 31. The second spring stretches under the action of the elastic restoring force and drives the locking assembly 3 to escape from the locking release cavity 111 from the unlocking release cavity 11, and the locking assembly 3 loses the pressure on the clamping component 100, thereby realizing the release of the clamping component 100 by the clamping release mechanism.

[0040] It can be understood that the compression and release mechanism provided in this embodiment is not limited to the field of aerospace technology, but can also be applied to other fields that require components to be compressed and released. The compression and release mechanism not only produces less impact when working, but also avoids the use of pyrotechnic devices, does not generate pollution, and can be reused, which is beneficial to reducing the use cost of the compression and release mechanism.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A compression release mechanism, characterized in that: include: A base (1), the base (1) being mounted on a satellite body or a body, and an unlocking release chamber (11) being provided inside the base (1); A slider (2), the slider (2) being slidably connected to the inner wall of the unlocking and releasing chamber (11); A locking assembly (3), wherein the slider (2) is slid and tightened to press the locking assembly (3) and limit and press one end of the locking assembly (3) in the unlocking and releasing chamber (11), and the other end of the locking assembly (3) is used to press the pressing component (100) onto the satellite body or the body; A tension release assembly (4), the tension release assembly (4) being mounted on the base (1), and the tension release assembly (4) being capable of tightening or unlocking the abutment between the slider (2) and the locking assembly (3); a separating member (5), the separating member (5) being connected between the locking assembly (3) and the pressing member (100) and being used for making the locking assembly (3) escape from the unlocking and releasing chamber (11); The tension release assembly (4) comprises a hot knife assembly (41), a tension rope (42) and a first spring (43); the hot knife assembly (41) is mounted on the base (1); the first spring (43) is connected between the base (1) and the slider (2); the tension rope (42) abuts against the hot knife assembly (41) and pulls the slider (2) to be pressed against the base (1); The separation member (5) is configured as a second spring, and the second spring is compressively connected between the locking assembly (3) and the pressing component (100).

2. The compression release mechanism according to claim 1, characterized in that: The base (1) is provided with a second accommodating cavity (12), and the hot knife assembly (41) is placed in the second accommodating cavity (12).

3. The compression release mechanism according to claim 1, characterized in that: The hot knife assembly (41) comprises a hot knife resistor (411) and a circuit board (412); the hot knife resistor (411) is electrically connected to the circuit board (412); and the tension rope (42) abuts against the hot knife resistor (411).

4. The compression release mechanism according to claim 1, characterized in that: The tension rope (42) is made of polyethylene.

5. The compression release mechanism according to claim 2, characterized in that: The base (1) is provided with a first connecting hole (13), a second connecting hole (14) and a fastening screw (15); the first connecting hole (13) is connected to the unlocking and releasing chamber (11); the second connecting hole (14) is connected to the second accommodating chamber (12); the tensioning rope (42) is connected to the fastening screw (15); the tensioning rope (42) is passed through the first connecting hole (13) and the second connecting hole (14) and is tightened on the slider (2).

6. The compression release mechanism according to claim 2, characterized in that: It also comprises a bottom cover plate (6), wherein the bottom cover plate (6) is connected to the base (1) and covers the unlocking and releasing cavity (11) and the second accommodating cavity (12).

7. The compression release mechanism according to claim 5, characterized in that: The slide block (2) is provided with a rope threading groove (21), and the tensioning rope (42) is tightened in the rope threading groove (21).

8. The compression release mechanism according to claim 1, characterized in that: The locking assembly (3) comprises a locking block (31) and a locking bolt (32), wherein the locking bolt (32) is connected to the locking block (31), and the locking block (31) is slidably tightened to press against the slider (2), and the separating member (5) is connected between the locking bolt (32) and the pressing member (100).

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