Rapid clamping mechanism for space and mounting and using method

Abstract

The invention relates to a rapid clamping mechanism for space and an installation and use method. The clamping mechanism comprises a pressing handle, a grab handle, a first torsional spring, a first pin, a cam, a second pin, a third pin, a second torsional spring, a steel wire rope, a fourth pin, a pressing tongue and a grip, and the pressing handle and the grab handle are connected through the first torsional spring and the first pin; the cam and the pressing tongue are installed on the pressing handle through the second pin and the second torsional spring. The steel wire rope is installed on the cam and the pressing tongue through the second pin, the third pin and the fourth pin. And the grip is connected with the grab handle. According to the rapid clamping mechanism for the space and the mounting and using method, the requirements of astronauts for rapid capturing, rapid clamping and rapid unlocking of handrails of different specifications in the space are met, and the clamping mechanism is simple, reliable and easy to operate and has very high interface safety and operability.

Description

Technical Field

[0001] The present invention relates to the field of space technology, and more specifically, to a quick clamping mechanism for space and an installation and use method thereof. Background Art

[0002] Since the quick clamping mechanism needs to meet the needs of astronauts to quickly clamp handrails of different specifications outside the cabin, due to the particularity of the outer space environment, astronauts need to wear space suits to operate outside the cabin, and the perception of space suits is only about 30%. Therefore, the size of the quick clamping mechanism is larger than that of ordinary civilian clamping mechanisms, and it needs to be locked after clamping. The existing space clamping mechanism can only meet the needs of clamping handrails of the same specifications. Different clamping mechanisms are required for handrails of different specifications in space. In order to meet the needs of astronauts for quick clamping, a mechanism for quickly clamping handrails of different specifications needs to be designed. Summary of the invention

[0003] The embodiments of the present application provide a quick clamping mechanism for space. In order to have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important components or describe the scope of protection of these embodiments. Its only purpose is to present some concepts in a simple form as a preface to the detailed description that follows.

[0004] Through reasonable mechanical design, this application meets the requirements of astronauts for rapid capture, rapid clamping, and rapid unlocking of handrails of different specifications in space.

[0005] In a first aspect, an embodiment of the present application provides a quick clamping mechanism for a space, the clamping mechanism comprising: a pressing handle, a gripping handle, a first torsion spring, a first pin, a cam, a second pin, a third pin, a second torsion spring, a wire rope, a fourth pin, a pressing tongue, and a gripping handle, wherein:

[0006] The pressing handle and the gripping handle are connected to the first pin via the first torsion spring, and the first torsion spring can close the front ends of the pressing handle and the gripping handle;

[0007] The cam and the pressing tongue are mounted on the pressing handle through the second pin and the second torsion spring, and the second torsion spring can open the pressing handle and the front end of the grip;

[0008] The steel wire rope is installed on the cam and the tongue through the second pin, the third pin and the fourth pin;

[0009] The grip is connected to the handle.

[0010] According to a preferred embodiment, the clamping mechanism further includes a first screw and a second screw, and the grip is connected to the handle via the first screw and the second screw.

[0011] According to a preferred embodiment, the front and rear ends of the pressure handle are designed as large inclined surfaces, which can play a guiding role and ensure the safety of the clamping mechanism interface.

[0012] According to a preferred embodiment, the front end of the gripping handle is designed as a large inclined surface, which together with the pressing handle can achieve rapid capture.

[0013] According to a preferred embodiment, the rear end of the handle adopts an ergonomic design to ensure the safety and ease of operation of the clamping mechanism interface.

[0014] According to a preferred embodiment, a slide groove is designed on the inner surface of the handle, and the cam can slide in the slide groove under the action of the pressing tongue.

[0015] According to a preferred embodiment, the inner surface of the pressure handle is designed with grooves, which can not only increase the friction force during clamping, but also increase the pressure per unit area to ensure reliable clamping.

[0016] According to another aspect of a preferred embodiment, the present application provides a method for installing and using a quick clamping mechanism for a space, the method comprising:

[0017] Step 1, connecting the pressing handle and the gripping handle via the first torsion spring and the first pin;

[0018] Step 2, installing the fourth pin on the cam;

[0019] Step 3, installing the third pin on the tongue depressor;

[0020] Step 4, installing the cam and the pressing tongue on the pressing handle through the second pin and the second torsion spring;

[0021] Step 5, first fix one end of the steel wire rope on the cam, pass it through the fourth pin and then through the third pin, and finally fix it on the pressing handle;

[0022] Step 6, fastening the handle and the grip by means of the first screw and the second screw, and fastening them after adjusting them to a suitable angle;

[0023] Step 7, holding the grip and the handle, pressing the tongue to open the front ends of the grip and the handle, and then aligning the handle with the outside handrail for quick capture and clamping. After the clamping mechanism quickly captures the outside handrail, release the tongue to lock the clamping mechanism to achieve quick clamping;

[0024] Step 8, pressing the pressing tongue to open the pressing handle and the front end of the grip, thereby unlocking the space armrest.

[0025] According to a preferred embodiment, the step of installing the cam and the pressing tongue on the pressing handle through the second pin and the second torsion spring comprises:

[0026] Fitting the front end surface of the cam to the rear end surface of the pressing handle;

[0027] The rear end surface of the cam is perpendicular to the slide groove of the handle;

[0028] Ensure that the cam has sufficient pre-tightening force and that the cam and the tongue can move freely.

[0029] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0030] In an embodiment of the present application, a quick clamping mechanism for space includes: a pressing handle, a gripping handle, a first torsion spring, a first pin, a cam, a second pin, a third pin, a second torsion spring, a steel wire rope, a fourth pin, a depressing tongue, and a grip, wherein: the pressing handle and the gripping handle are connected to the first pin via the first torsion spring, and the first torsion spring can close the front ends of the pressing handle and the gripping handle; the cam and the depressing tongue are installed on the pressing handle via the second pin and the second torsion spring, and the second torsion spring can open the front ends of the pressing handle and the gripping handle; the steel wire rope is installed on the cam and the depressing tongue via the second pin, the third pin, and the fourth pin; and the gripping handle is connected to the gripping handle. The method for installing and using a quick clamping mechanism for a space comprises: step 1, connecting the pressing handle and the gripping handle through the first torsion spring and the first pin; step 2, installing the fourth pin on the cam; step 3, installing the third pin on the pressing tongue; step 4, installing the cam and the pressing tongue on the pressing handle through the second pin and the second torsion spring; step 5, first fixing one end of the wire rope on the cam, passing through the fourth pin and then the third pin, and finally fixing it on the pressing handle; On the handle; Step 6, fasten the handle and the grip by the first screw and the second screw, and adjust them to a suitable angle before fastening; Step 7, hold the handle and the grip, press the pressure tongue to open the front ends of the pressure handle and the grip, and then align them with the handrail outside the cabin for quick capture and clamping. After the clamping mechanism quickly captures the handrail outside the cabin, release the pressure tongue to lock the clamping mechanism to achieve quick clamping; Step 8, press the pressure tongue to open the front ends of the pressure handle and the grip to unlock the space handrail. The quick clamping mechanism for space described in the present application is designed with a quick clamping and quick unlocking device, which can meet the requirements of quick capture, quick clamping, and quick unlocking of handrails of different specifications outside the cabin when astronauts use maintenance tools outside the cabin. The clamping mechanism is simple, reliable, and easy to operate. It can be used by different astronauts and has high interface safety and ease of operation.

[0031] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0033] Figure 1 It is a schematic diagram of a front view cross-section structure of a space quick clamping mechanism provided in an embodiment of the present application;

[0034] Figure 2 It is a front view schematic diagram of a space quick clamping mechanism provided in an embodiment of the present application;

[0035] Figure 3 It is a top view schematic diagram of a space-use quick clamping mechanism provided in an embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of a cam of a space-use quick clamping mechanism provided in an embodiment of the present application;

[0037] Figure 5 It is a schematic diagram of a tongue pressing device for a space quick clamping mechanism provided in an embodiment of the present application;

[0038] Figure 6 It is a flow chart of a method for installing and using a quick clamping mechanism for space provided in an embodiment of the present application.

[0039] Description of the drawings: 1-pressing handle, 2-grip handle, 3-first torsion spring, 4-first pin, 5-cam, 6-second pin, 7-third pin, 8-second torsion spring, 9-wire rope, 10-fourth pin, 11-pressing tongue, 12-first screw, 13-second screw, 14-grip handle. DETAILED DESCRIPTION

[0040] The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them.

[0041] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples of systems and methods consistent with some aspects of the present invention as detailed in the attached claims.

[0043] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previously associated objects are in an "or" relationship.

[0044] The following will be combined with the attached Figure 1 -Attached Figure 6 , a space quick clamping mechanism provided in an embodiment of the present application is introduced in detail.

[0045] The embodiment of the present application proposes a quick clamping mechanism for space and an installation and use method, which is mainly used for quickly capturing, clamping, and unlocking handrails of different specifications outside the cabin when astronauts use maintenance tools outside the cabin. Taking into account that astronauts are using the harsh environmental conditions outside the cabin, the clamping mechanism designed in the present application is simple, reliable, and easy to operate.

[0046] See also Figure 1 , Figure 2 , Figure 3 , respectively, provide a front view cross-sectional structure schematic diagram, a front view schematic diagram, and a top view schematic diagram of a space-use quick clamping mechanism in an embodiment of the present application, such as Figure 1 , Figure 2 , Figure 3 As shown, a quick clamping mechanism for space proposed in an embodiment of the present application may include: a pressing handle (1), a gripping handle (2), a first torsion spring (3), a first pin (4), a cam (5), a second pin (6), a third pin (7), a second torsion spring (8), a steel wire rope (9), a fourth pin (10), a pressing tongue (11), and a gripping handle (14), wherein:

[0047] The pressing handle (1) and the gripping handle (2) are connected to the first pin (4) via a first torsion spring (3), and the first torsion spring (3) can close the front ends of the pressing handle (1) and the gripping handle (2);

[0048] The cam (5) and the pressing tongue (11) are mounted on the pressing handle (1) via a second pin (6) and a second torsion spring (8), and the second torsion spring (8) can open the front end of the pressing handle (1) and the grip (2);

[0049] The steel wire rope (9) is installed on the cam (5) and the tongue (11) through the second pin (6), the third pin (7) and the fourth pin (10);

[0050] The grip (13) is connected to the handle (2).

[0051] Specifically, in the embodiment of the present application, the pressure handle (1), the gripping handle (2), the cam (5), the pressure tongue (11), and the gripping handle (14) form a support frame of the quick clamping mechanism, and the clamping mechanism also includes a first screw (12) and a second screw (13). The gripping handle (14) is connected to the gripping handle (2) via the first screw (12) and the second screw (13), and the gripping handle (13) can also be replaced to accommodate different astronauts; the pressure handle (1) and the gripping handle (2) are connected via a first torsion spring (3) and a first pin (4), so that the mechanism can be quickly captured and quickly clamped. Among them, the front and rear ends of the pressing handle (1) are designed as large inclined surfaces, which can play a guiding role and ensure the safety of the clamping mechanism interface; the front end of the gripping handle (2) is designed as a large inclined surface, which realizes rapid capture together with the pressing handle (1), and the rear end of the gripping handle (2) adopts ergonomic design to ensure the safety and ease of operation of the clamping mechanism interface; the inner surface of the gripping handle (2) is designed with a slide groove, and the cam (5) can slide in the slide groove under the action of the pressing tongue (11); the inner surfaces of the pressing handle (1) and the gripping handle (2) are both designed with grooves, which can not only increase the friction force during clamping, but also increase the pressure per unit area, thereby ensuring reliable clamping.

[0052] like Figure 4 As shown, the cam (5) is designed to be special-shaped to adapt to the angle and movement trajectory of the pressing handle (1); Figure 5 As shown, the tongue depressor (11) is designed to be special-shaped in order to adapt the angle of the tongue depressor (11) to the handle (1) and to conform to ergonomics. The embodiment of the present application adopts the design of the cam (5) when locking, which can not only clamp handrails of different specifications, but also ensure the synchronous movement of the cam (5) and the handle (1); the tongue depressor (11) and the cam (5) are connected by a steel wire rope (9), and the movement of the tongue depressor (11) at a small angle can achieve the lifting of the cam (5) at a large angle. The clamping mechanism proposed in the embodiment of the present application adopts an ergonomic design as a whole, which can effectively improve the safety and operability of the clamping mechanism interface.

[0053] See also Figure 6 The present invention provides a flowchart of a method for installing and using a space-use quick clamping mechanism. Figure 6 As shown, the method of the embodiment of the present application may include the following steps:

[0054] Step 1, connecting the pressing handle (1) and the gripping handle (2) via the first torsion spring (3) and the first pin (4), in step 1, including:

[0055] When the pressing handle (1) and the gripping handle (2) are connected, the front lower end surface of the pressing handle (1) is ensured to be in contact with the front upper end surface of the gripping handle (2). After installation, the first torsion spring (3) is ensured to have the designed preload force, and the clamping mechanism is ensured to be in a clamping state.

[0056] Step 2, installing the fourth pin (10) on the cam (5);

[0057] Step 3, installing the third pin (7) on the tongue pressing (11);

[0058] Step 4, installing the cam (5) and the pressing tongue (11) on the pressing handle (1) through the second pin (6) and the second torsion spring (8), in step 4, including:

[0059] The front end surface of the cam (5) is fitted with the rear end surface of the pressing handle (1);

[0060] The rear end surface of the cam (5) is perpendicular to the slide groove of the handle (2);

[0061] It is ensured that the cam (5) has sufficient pre-tightening force and that the cam (5) and the tongue (11) can move freely.

[0062] Step 5, first fix one end of the steel wire rope (9) on the cam (5), pass it through the fourth pin (10), then pass it through the third pin (7), and finally fix it on the pressing handle (1). In step 5, it includes:

[0063] Ensure that the rear end surface of the pressing handle (1) fits the front end surface of the pressing tongue (11);

[0064] The pressing tongue (11) is pressed to ensure that the cam (5) can move freely in the slide groove of the handle (2).

[0065] Step 6, fastening the handle (2) and the grip (14) together by means of the first screw (12) and the second screw (13), and adjusting them to a suitable angle before fastening them. Step 6 includes:

[0066] The grip (2) and the handle (14) are adjusted to an angle suitable for an astronaut to wear an extravehicular space suit and then fastened.

[0067] Before step 7, the method further includes: ensuring that the lower end surface of the pressing handle (1) is completely fitted with the upper end surface of the gripping handle (2).

[0068] Step 7, holding the grip (2) and the handle (14), pressing the pressing tongue (11) so that the front ends of the pressing handle (1) and the grip (2) are opened, and then aligning with the handrail outside the cabin to quickly capture and clamp. After the clamping mechanism quickly captures the handrail outside the cabin, the pressing tongue (11) is released to lock the clamping mechanism to achieve rapid clamping. In step 7, it includes:

[0069] Holding the grip (2) and the handle (14), pressing the tongue (11) causes the steel wire (9) to pass through the third pin (7) and the fourth pin (10) to drive the cam (5) to move backward along the slide groove of the grip (2), and at the same time compressing the second torsion spring (8) to store force. At this time, the front ends of the pressure handle (1) and the grip (2) are opened, and the handheld quick clamping mechanism is aligned with the handrail outside the cabin for quick capture and clamping;

[0070] When the clamping mechanism quickly captures the handrail outside the cabin, the pressing tongue (11) is released. At this time, under the action of the first torsion spring (3) and the second torsion spring (8), the front ends of the pressing handle (1) and the gripping handle (2) are closed and the cam (5) retracts to lock the clamping mechanism, thereby achieving rapid clamping.

[0071] Step 8, pressing the pressing tongue (11) to open the front ends of the pressing handle (1) and the gripping handle (2), thereby unlocking the space armrest. In step 8, the steps include:

[0072] The pressing tongue (11) drives the cam (5) to move backwards through the steel wire rope (9), and continued pressing drives the front ends of the pressing handle (1) and the gripping handle (2) to open, thereby unlocking the space armrest.

[0073] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0074] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A quick clamping mechanism for space, characterized in that: include: A pressing handle, a gripping handle, a first torsion spring, a first pin, a cam, a second pin, a third pin, a second torsion spring, a wire rope, a fourth pin, a pressing tongue, and a gripping handle, wherein: The pressing handle and the gripping handle are connected to the first pin via the first torsion spring, and the first torsion spring can close the front ends of the pressing handle and the gripping handle; The cam and the pressing tongue are mounted on the pressing handle through the second pin and the second torsion spring, and the second torsion spring can open the pressing handle and the front end of the grip; The steel wire rope is installed on the cam and the tongue through the second pin, the third pin and the fourth pin; The grip is connected to the handle.

2. A space quick clamping mechanism according to claim 1, characterized in that: It also includes a first screw and a second screw, and the handle is connected to the handle through the first screw and the second screw.

3. A space quick clamping mechanism according to claim 1, characterized in that: The front and rear ends of the pressure handle are designed as large inclined surfaces, which can play a guiding role and ensure the safety of the clamping mechanism interface.

4. A space quick clamping mechanism according to claim 3, characterized in that: The front end of the grip is designed as a large inclined surface, which together with the pressing handle can achieve rapid capture.

5. A space quick clamping mechanism according to claim 4, characterized in that: The rear end of the handle adopts an ergonomic design to ensure the safety and ease of operation of the clamping mechanism interface.

6. A space quick clamping mechanism according to claim 5, characterized in that: The inner surface of the handle is designed with a slide groove, and the cam can slide in the slide groove under the action of the pressing tongue.

7. A space quick clamping mechanism according to claim 3, characterized in that: The inner surfaces of the pressing handles are designed with grooves, which can not only increase the friction force during clamping, but also increase the pressure per unit area to ensure reliable clamping.

8. A method for installing and using a quick clamping mechanism for space, characterized in that: A space quick clamping mechanism according to claims 1-7, comprising: Step 1, connecting the pressing handle and the gripping handle via the first torsion spring and the first pin; Step 2, installing the fourth pin on the cam; Step 3, installing the third pin on the tongue depressor; Step 4, installing the cam and the pressing tongue on the pressing handle through the second pin and the second torsion spring; Step 5, first fix one end of the steel wire rope on the cam, pass it through the fourth pin and then through the third pin, and finally fix it on the pressing handle; Step 6, fastening the handle and the grip by means of the first screw and the second screw, and fastening them after adjusting them to a suitable angle; Step 7, holding the grip and the handle, pressing the tongue to open the front ends of the grip and the handle, and then aligning the handle with the outside handrail for quick capture and clamping. After the clamping mechanism quickly captures the outside handrail, release the tongue to lock the clamping mechanism to achieve quick clamping; Step 8, pressing the pressing tongue to open the pressing handle and the front end of the grip, thereby unlocking the space armrest.

9. The method for installing and using a space quick clamping mechanism according to claim 8, characterized in that: The step of installing the cam and the pressing tongue on the pressing handle through the second pin and the second torsion spring comprises: Fitting the front end surface of the cam to the rear end surface of the pressing handle; The rear end surface of the cam is perpendicular to the slide groove of the handle; Ensure that the cam has sufficient pre-tightening force and that the cam and the tongue can move freely.

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