Space suit fixing mechanism

Abstract

The present invention relates to a space suit fixing mechanism, comprising a base, a clamping assembly and a locking assembly, wherein the interior of the base is a cavity, and the top and one side are open, and a connecting hole communicating with the cavity is provided on a side perpendicular to the open side, the clamping assembly and the locking assembly are respectively located on the top of the base and on the side where the connecting hole is located, the locking assembly comprises a locking pin, and the locking assembly further comprises a first handle and a pin sleeve, the first handle is rotatably connected to the locking pin, one end of the pin sleeve is located in the connecting hole, and the other end is fixed to the base, and a spring is sleeved on the locking pin and is located together in the pin sleeve. The locking pin in the locking assembly in the fixing mechanism of the present invention is more convenient in the process of locking and unlocking.

Description

Technical Field

[0001] The invention relates to a space suit fixing mechanism. Background Art

[0002] At present, most space suits have a fixed pivot at the chest. The general fixing mechanism of space suits is achieved by fixing the pivot. There is an annular groove on the pivot, so it can be fixed by the cooperation of torsion spring and hawk's beak hook. This fixing method is very convenient, but it is only suitable for frequent use of space suits. When the space suit is not used for a long time, the astronaut needs to hold the pin and insert it into the base and hawk's beak hook to lock it. This method requires the astronaut to align the pin with the pin hole in space. It can be seen that this method is extremely inconvenient in the complex space environment. Summary of the invention

[0003] The object of the present invention is to provide a space suit fixing mechanism which can make locking more convenient.

[0004] To achieve the above-mentioned purpose of the invention, the present invention provides a space suit fixing mechanism, including a base, a clamping assembly and a locking assembly, the interior of the base is a cavity, and the top and one side are open, and a connecting hole connected to the cavity is provided on the side perpendicular to the open side, the clamping assembly and the locking assembly are respectively located on the top of the base and the side where the connecting hole is located, the locking assembly includes a locking pin, and the locking assembly also includes a first handle and a pin sleeve, the first handle is rotatably connected to the locking pin, one end of the pin sleeve is located in the connecting hole, and the other end is fixed to the base, and a spring is sleeved on the locking pin and is located together in the pin sleeve.

[0005] According to one aspect of the present invention, the pin sleeve has a sleeve portion and a mounting portion;

[0006] The sleeve portion is located in the connecting hole and has a blocking protrusion inside.

[0007] The mounting portion is fixedly connected to the base.

[0008] According to one aspect of the present invention, the locking pin has a locking end and a connecting end;

[0009] The diameter of the locking end is greater than the diameter of the connecting end, and the spring is sleeved on the connecting end;

[0010] The locking pin and the spring are located in the sleeve portion, and the spring is located between the locking end and the blocking protrusion.

[0011] According to one aspect of the present invention, the first handle has a gripping portion and a connecting portion that are perpendicular to each other;

[0012] The gripping portion is a rectangular flat plate with anti-slip holes running through its thickness;

[0013] The connecting portion is a rectangular flat plate, and is provided with notches penetrating through three sides thereof in a direction perpendicular to its thickness;

[0014] The connecting portion is connected to the connecting end of the locking pin via a pin, and a baffle is fixedly connected to one surface of the connecting portion to prevent the pin from falling out.

[0015] According to one aspect of the present invention, the lower end of the side edge of the connecting portion of the first handle close to the base is rounded, and the upper end of the side edge extends toward the base;

[0016] The gripping portion is connected to a side of the connecting portion away from the base, and a lower end of the side extends downward.

[0017] According to one aspect of the present invention, the bottom of the inner wall of the base is stepped and is higher away from the open side.

[0018] According to one aspect of the present invention, the clamping assembly comprises a second handle, a clamping member and a supporting shaft;

[0019] One end of the second handle is fixedly connected to the top of the clamping member, and the other end is tilted upward and has a width greater than the middle of the second handle;

[0020] A hook bent downward and backward is provided at one end of the bottom of the clamping member, and a locking hole that can cooperate with the locking pin is provided on the side of the end;

[0021] Two supporting plates are oppositely arranged at the other end of the bottom of the clamping member.

[0022] According to one aspect of the present invention, the support plate is provided with an axial hole, and the support shaft is sleeved with a torsion spring.

[0023] According to one aspect of the present invention, the supporting shaft passes through the cavity of the base and the through-shaft hole of the support plate, and the two torsion bars of the torsion spring respectively abut against the bottom of the inner wall of the base and the clamping member.

[0024] According to one aspect of the present invention, the middle portion of the side surface of the base is an inwardly inclined slope.

[0025] According to one scheme of the present invention, a locking assembly is provided on the basis of the base and the card-connecting assembly. The locking pin in the locking assembly is used to maintain the locked state of the card-connecting assembly, and the pin sleeve provides a movable space for the locking pin. The first handle is rotatably connected to the locking pin, so that when the first handle is pulled upward or downward, the locking pin is driven to enter or exit the locking hole of the card-connecting component, thereby achieving locking and unlocking. A spring is sleeved on the locking pin, and a blocking protrusion is provided in the pin sleeve to provide abutment support for the spring. The locking pin and the spring are located together in the pin sleeve, so that during the movement of the locking pin, the spring will be expanded or compressed, which can respectively complete the work of maintaining the locked and unlocked states of the locking assembly. This method allows astronauts to achieve locking by simply pulling the handle without aligning the pin with the pin hole.

[0026] According to one solution of the present invention, due to the presence of the pin sleeve, the structural design of the connecting hole on the base is relatively simple, and only a through hole is required. This reduces the difficulty of processing and design and improves the assembly accuracy. The first handle is divided into a gripping portion and a connecting portion. The two extension sections on the connecting portion can be used to block in the locked state and the unlocked state respectively, preventing the first handle from rotating too much, thereby reducing human errors. The lower end of the connecting portion on the side in contact with the base is rounded, so that it rotates more smoothly.

[0027] According to one solution of the present invention, one end of the second handle in the clamping assembly is tilted upward, so that the astronaut can unlock the clamping assembly by pressing, which improves the operability of the mechanism. The hook on the clamping piece is bent downward and backward, so that the side facing the outside is an inclined surface, so that the clamping piece can be automatically lifted up after the space suit pivot is inserted into the base, making the use of the mechanism more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 An axonometric view schematically showing a space suit fixing mechanism in a locked state according to an embodiment of the present invention;

[0030] Figure 2 An exploded view schematically showing a space suit fixing mechanism according to an embodiment of the present invention;

[0031] Figure 3 A cross-sectional view schematically showing a space suit fixing mechanism according to an embodiment of the present invention in an axonometric perspective in a locked state;

[0032] Figure 4 A cross-sectional view schematically showing a space suit fixing mechanism according to an embodiment of the present invention in a locked state from a side perspective;

[0033] Figure 5 A perspective view schematically showing a space suit fixing mechanism according to an embodiment of the present invention in an axonometric perspective in a locked state. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] When describing the embodiments of the present invention, the orientation or positional relationship expressed by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or positional relationship shown in the relevant drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments cannot be described one by one here, but the embodiments of the present invention are not therefore limited to the following embodiments.

[0037] See also Figure 1 The space suit fixing mechanism of the present invention comprises a base 1, a clamping assembly 2 and a locking assembly 3. The base 1 is in the shape of a rectangular parallelepiped, the clamping assembly 2 is located at the top of the base 1, and the locking assembly 3 is located at the right side of the base 1.

[0038] See also Figure 2 The rear end of the base 1 has a flat plate for fixing the base 1 in the spacecraft cabin. The base 1 has a cavity inside and is open at the top and front. The front is open to allow the pivot of the space suit to be inserted into the base 1. Therefore, the bottom of the inner wall of the base 1 is cylindrical, adapted to the shape of the space suit pivot; the upper open part is adapted to the shape of the base 1. In addition, the right side of the base 1 is also provided with a connecting hole 12, which is connected to the cavity (upper side).

[0039] like Figure 2As shown, the clamping assembly 2 includes a second handle 21, a clamping member 22 and a support shaft 23. Among them, the clamping member 22 is composed of a three-part structure. Specifically, the upper end of the clamping member 22 is a rectangular block for connecting the second handle 21. The lower end of the clamping member 22 has a two-part structure, the front side is provided with a hook 221 bent downward and backward, and two opposite support plates 222 are provided on both sides of the rear side. The function of the support plate 222 is to support the clamping member 22 on the support shaft 23, so it is also provided with a through-shaft hole 222a for the support shaft 23 to pass through. According to the above-mentioned arrangement, the front end of the clamping member 22 is narrower and the rear end is wider. Since the clamping assembly 2 is located at the top of the base 1 as a whole, and the support plate 222 extends from the rear side of the top of the base 1 into the cylindrical space on the lower side of the cavity after assembly. Therefore, the upper shape of the cavity of the base 1 should also be adapted to the design of the clamping member 22. Of course, this will make the upper thickness of the base 1 uneven, affect the counterweight and waste materials. Therefore, in the present invention, the side surface at the approximately middle position of the base 1 is an inwardly inclined slope. Figure 3 In the embodiment shown, the middle portion of the base 1 is configured to have a diamond-shaped cross section. Of course, according to this concept, the cross section of this section can also be a rectangle that is diagonally opposite to the overall cross section of the base 1.

[0040] Continue to see Figure 2 The second handle 21 is in the shape of a long flat plate, with its front end fixedly connected to the upper end of the clamping part 22, and its rear end tilted upward, and its width is slightly larger than the middle part, which makes it easier for astronauts to press. The support shaft 23 is a stepped shaft as a whole, with a diameter at the right end larger than the middle part, and a threaded hole at the left end. During installation, the support shaft 23 needs to radially pass through the lower cylindrical part of the cavity of the base 1, and screw in the end to fix it. Therefore, corresponding holes are also provided on the side walls of the base 1 to allow the support shaft 23 to pass through and be supported thereon. In the present invention, a torsion spring 24 is also provided on the support shaft 23, and the torsion spring 24 does not need to be connected to the support shaft 23, but only needs to be sleeved thereon. Figure 2 In the assembled state shown in FIG. 1 , the torsion spring 24 and the two support plates 222 are sleeved on the support shaft 23. After assembly, the two torsion bars A (see FIG. 1 ) of the torsion spring 24 are Figure 4 and Figure 5 ) are respectively fitted with the bottom of the inner wall of the base 1 and the left side of the clamping member 22.

[0041] The fixing mechanism with the above two components can basically complete the plug-in work of the space suit pivot, that is, the temporary fixation of the space suit. However, facing the complex space environment, the locking work completed by relying solely on the elastic force of the torsion spring 24 is not firm. Therefore, the present invention provides a locking assembly 3 in the fixing mechanism to achieve a more secure fixation when the space suit is not used for a long time. The locking assembly 3 includes the most basic locking component-the locking pin 31. Of course, in order to avoid the situation in the prior art where astronauts are required to align the locking pin 31 with the pin hole, the locking assembly 3 of the present invention also includes a first handle 32 and a pin sleeve 33. The assembly consisting of these three can be assembled into a whole with the base 1 and the snap-on assembly 2 to form a highly integrated space suit fixing mechanism.

[0042] Specific, combined Figure 2 and Figure 3 The locking pin 31 is a columnar rod as a whole, having a locking end 31a and a connecting end 31b. The diameter of the locking end 31a is larger than the diameter of the connecting end 31b, but the length is smaller, wherein a spring 35 is sleeved on the connecting end 31b. Of course, the connection mode of the spring 35 and the connecting end 31b can be a fixed connection, and the fixed point can be at the left end in the figure, or it can be directly sleeved thereon. The function of the pin sleeve 33 is to provide a moving space for the locking pin 31 and guide its movement. The pin sleeve 33 has a sleeve portion 33a and a mounting portion 33b. The sleeve portion 33a is a cylinder as a whole, which is used to accommodate the locking pin 31; the mounting portion 33b is located at the right end of the sleeve portion 33a, and the specific shape is not particularly limited, but it is provided with a mounting hole, so that it can be mounted on the base 1 by screws and other components. After installation, the sleeve portion 33a is located in the connecting hole 12 as a whole, that is, the outer diameter of the sleeve portion 33a corresponds to the hole diameter of the connecting hole 12. Since the locking pin 31 and the pin sleeve 33 are installed in a manner that the locking pin 31 is placed together with the spring 35 in the sleeve portion 33a. Therefore, when designing, it is best to make the internal size of the sleeve portion 33a the same as the locking end 31a. In the present invention, a blocking protrusion 34 is provided inside the sleeve portion 33a, and the function of the blocking protrusion 34 is to provide a support for the spring 35, so that the spring 35 is located between the connecting end 31b and the blocking protrusion 34 after installation. In fact, the blocking protrusion 34 can also be understood as a section of a hole with a smaller diameter located at the end of the sleeve portion 33a. As can be seen from the above, the connecting hole 12 on the base 1 corresponds to the pin sleeve 33. However, since the structure of the locking pin 31 is relatively special, if the connecting hole 12 is directly used as a hole for the locking pin 31 to move, the overall structure of the base 1 will be complicated, the processing difficulty will be relatively large, and the accuracy will not be easy to ensure. As a result, the locking pin 31 can move back and forth inside the sleeve portion 33a. Since the locking pin 31 of the present invention is used to lock the clamping member 22 in the clamping assembly 2, so as to prevent one end of the hook 221 from tilting up. Figure 3As shown, the side surface of one end of the hook 221 of the clamping member 22 is provided with a locking hole 223 that can cooperate with the locking pin 31. Specifically, the locking hole 223 is set in the clamping state (i.e. Figure 3 As shown in the figure, it is sufficient to be coaxial with the sleeve portion 33a.

[0043] See also Figure 2 The first handle 32 is composed of two parts, namely, a gripping portion 32a and a connecting portion 32b. The gripping portion 32a is a rectangular flat plate, and an anti-slip hole 32c is provided in the middle thereof. The anti-slip hole 32c is also rectangular and runs through the thickness of the gripping portion 32a. In fact, the anti-slip hole 32c has both an anti-slip function and a weight-reducing function, so its specific size and shape can also be set according to the overall size of the gripping portion 32a. The connecting portion 32b is formed by processing a rectangular notch 32d in the middle of a whole rectangular plate. The notch 32d runs through the upper, lower and left sides of the connecting portion 32b in a direction perpendicular to the thickness of the connecting portion 32b. According to this design, it can also be understood that the connecting portion 32b is formed by two rectangular flat plates separated from each other connected by the right side. It can be seen from this that the approximate shapes of the gripping portion 32a and the connecting portion 32b are both rectangular. When designing the first handle 32 of the present invention, these two parts are set perpendicular to each other, so as to facilitate the astronaut to pull. In the present invention, the first handle 32 is rotatably connected to the locking pin 31. The connection point on the first handle 32 is located at the lower left end of the connecting portion 32b, and the connection point on the locking pin 31 is located at the right end of the connecting end 31b. The specific connection between the two is achieved through a pin B. Therefore, pin holes are set at corresponding positions of the locking pin 31 and the first handle 32, and the locking pin 31 is rotated from the first handle 32. Figure 2 The connection is achieved by inserting a pin B on one side. In order to prevent the pin B from falling off, the present invention also provides a baffle 36. Figure 2As shown, the baffle 36 in this embodiment is a long strip-shaped flat plate with rounded ends, the right end of which is fixed to the side surface of the connecting portion 32b, and the left end can be blocked on the outside of the pin B to prevent it from coming out. After being connected in this way, when the astronaut pulls the first handle 32 downward, the connecting portion 32b of the first handle 32 will rotate around its left lower end close to the side wall of the base 1. At this time, since the connecting portion 32b is connected to the locking pin 31, the rotation of the first handle 32 will drive the locking pin 31 to move backward and gradually withdraw from the locking hole 223 on the clamping member 22. When the gripping portion 32a of the first handle 32 is completely horizontal, the bottom edge of the connecting portion 32b is attached to the base 1, and the locking end 31a of the locking pin 31 completely withdraws from the locking hole 223 to complete unlocking. Due to the provision of the notch 32d, the first handle 32 will not interfere with the locking pin 31 when rotating. When the astronaut then presses the second handle 21 downward, the clip 22 rotates around the support shaft 23, causing the hook 221 to tilt upward and disengage from the annular groove on the pivot of the space suit, completing the unlocking. During this process, the rotation of the clip 22 will also cause the torsion spring 24 to twist and compress, giving it elastic potential energy, so that it can automatically return to its original position when the astronaut lets go. In addition, since the hook 221 is bent backward, the side facing the space suit is an inclined surface. In this way, when re-fixing the space suit, the clip 22 can be directly inserted into the cavity to lift the clip 22 back. After being inserted into place, the torsion spring 24 will drive the clip 22 to automatically return to its original position, causing the hook 221 to automatically get stuck in the annular groove of the pivot of the space suit to complete the fixation. Of course, when the clip 2 automatically returns to its original position, it means that the pivot is installed in place. Otherwise, the second handle 21 should be pressed to withdraw the pivot and reinstall it. If the size of the torsion spring 24 is smaller during design, the bottom of the inner wall of the base 1 should be as Figure 4 and Figure 5 As shown, it is designed to be in a stepped shape with the left side higher and the right side lower, so that the torsion bar A of the torsion spring 24 can contact the bottom of the inner wall of the base 1.

[0044] When locking, the astronaut pulls the first handle 32 upward to return the gripping portion 32a to the vertical state. Prior to this, the spring 35 is in a compressed state, so the elastic potential energy accumulated by it will automatically drive the locking pin 31 to move toward the locking hole 223 when locking, so the locking process will be very labor-saving. After the locking is completed, the right side of the connecting portion 32b of the first handle 32 fits the base 1. Since this process is manually operated, in order to avoid excessive rotation, the present invention extends the upper left end of the connecting portion 32b to the right and extends the lower right end downward, and these two extension sections respectively play a blocking role in the locked state and the unlocked state. Of course, these two extension sections should also be adapted to the setting of the notch 32d to avoid interference with the locking pin 31. In addition, since the connecting portion 32b will rotate around its lower left end during the entire process, it is best to round the corners at this end to make it rotate more smoothly.

[0045] In summary, the overall working process of the space suit fixing mechanism of the present invention is as follows: First, pull the first handle 32 to make its gripping part 32a horizontal. Align the chest pivot of the space suit with the lower end of the cavity on the base 1. Then insert the pivot into the cavity, and the hook 221 of the clamping part 22 is automatically lifted up during the pushing process. After the suit is installed in place, the hook 221 falls down and automatically returns to the locked state. If the hook 221 does not fall down (that is, it is always in the lifted state), it means that the suit is not installed in place and needs to be reinstalled. After the pivot is installed in place, pull the first handle 32 upward to make its gripping part 32a vertical to complete the locking. When unlocking, pull the first handle 32 downward to make the locking pin 31 completely withdraw from the locking hole 223. Then press the second handle 21 downward so that one end of the hook 221 of the clamping part 22 is tilted up and disengaged from the annular groove of the pivot. Finally, pull out the pivot. Of course, after taking out the garment, the first handle 32 should be pulled upward again to return the entire fixing mechanism to the locked state, thereby preventing the components in the clamping assembly 2 from moving randomly.

[0046] The above is only one embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A space suit fixing mechanism, comprising a base (1), a clamping assembly (2) and a locking assembly (3), wherein the base (1) is hollow inside and has a top and a side open, a side perpendicular to the open side is provided with a connecting hole (12) communicating with the cavity, the clamping assembly (2) and the locking assembly (3) are respectively located at the top of the base (1) and the side where the connecting hole (12) is located, the locking assembly (3) comprises a locking pin (31), and is characterized in that: The locking assembly (3) further comprises a first handle (32) and a pin sleeve (33), wherein the first handle (32) is rotatably connected to the locking pin (31), one end of the pin sleeve (33) is located in the connecting hole (12), and the other end is fixed to the base (1), and a spring (35) is sleeved on the locking pin (31) and is located in the pin sleeve (33); The pin sleeve (33) comprises a sleeve portion (33a) and a mounting portion (33b); The sleeve portion (33a) is located in the connecting hole (12) and has a blocking protrusion (34) disposed therein; The mounting portion (33b) is fixedly connected to the base (1); The locking pin (31) has a locking end (31a) and a connecting end (31b); The diameter of the locking end (31a) is greater than the diameter of the connecting end (31b), and the spring (35) is sleeved on the connecting end (31b); The locking pin (31) and the spring (35) are located in the sleeve portion (33a), and the spring (35) is located between the locking end (31a) and the blocking protrusion (34); The first handle (32) comprises a gripping portion (32a) and a connecting portion (32b) which are perpendicular to each other; The gripping portion (32a) is a rectangular flat plate and is provided with an anti-slip hole (32c) penetrating along its thickness; The connecting portion (32b) is a rectangular flat plate and is provided with notches (32d) penetrating through three sides thereof in a direction perpendicular to its thickness; The connecting portion (32b) is connected to the connecting end (31b) of the locking pin (31) via a pin, and a baffle (36) is fixedly connected to one surface of the connecting portion (32b) to prevent the pin from falling out. The clamping assembly (2) comprises a second handle (21), a clamping member (22) and a supporting shaft (23); One end of the second handle (21) is fixedly connected to the top of the clamping member (22), and the other end is tilted upward and has a width greater than the middle of the second handle (21); A hook (221) bent downward and backward is provided at one end of the bottom of the clamping member (22), and a locking hole (223) capable of cooperating with the locking pin (31) is provided on the side surface of the end; Two supporting plates (222) are provided opposite to each other at the other end of the bottom of the clamping member (22); The support plate (222) is provided with an axial hole (222a), and the support shaft (23) is sleeved with a torsion spring (24); The supporting shaft (23) passes through the cavity of the base (1) and the through-shaft hole (222a) of the support plate (222), and the two torsion bars of the torsion spring (24) respectively abut against the bottom of the inner wall of the base (1) and the clamping member (22); The middle part of the side surface of the base (1) is an inwardly inclined slope.

2. The space suit fixing mechanism according to claim 1, characterized in that: The lower end of the side edge of the connecting portion (32b) of the first handle (32) close to the base (1) is rounded, and the upper end of the side edge extends towards the base (1); The gripping portion (32a) is connected to a side of the connecting portion (32b) away from the base (1), and the lower end of the side extends downward.

3. The space suit fixing mechanism according to claim 2, characterized in that: The bottom of the inner wall of the base (1) is in a step-like shape and is higher away from the open side.

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