Latch type interlocking and locking integrated device

Abstract

The present invention provides a latch-type interlocking and locking integrated device, which is applied to a three-stage segmented extension mechanism. The device comprises: a locking / interlocking mechanism (1), an interlocking bracket (2) and a pin assembly (3). The pin assembly (3) is installed at the bottom of the first-stage segment, the locking / interlocking mechanism (1) is installed at the head of the second-stage segment, and the interlocking bracket (2) is installed at the head of the third-stage segment, wherein: the locking / interlocking mechanism (1) comprises: a locking seat, a locking assembly and an interlocking assembly; the pin assembly (3) comprises: a locking pin; the locking seat provides an installation interface for the locking assembly and the interlocking assembly, and provides an entrance for the locking pin; and the locking assembly, the interlocking assembly and the locking pin are orthogonally distributed in space. The present invention can be applied to various types of segmented extension mechanisms. The device can simultaneously realize locking and interlocking between various stages of the segment, and has high connection stiffness, high reliability and good synchronization.

Description

Technical Field

[0001] The present invention relates to the technical field of space extension mechanisms, and in particular to a latch-type interlocking and locking integrated device. Background Art

[0002] With the continuous development and progress in the fields of space security and deep space exploration, the application prospects of space segmented extension mechanisms are becoming increasingly broad.

[0003] At present, segmented extension mechanisms are mostly grid tube or truss configurations, which have the characteristics of strong load-bearing capacity, high deployment rigidity, good environmental adaptability, etc. However, this type of mechanism cannot achieve orderly step-by-step deployment during the deployment process between the segments, and the deployment locking sequence is uncontrolled, resulting in poor deployment stability. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a latch-type interlocking and locking integrated device.

[0005] The present invention provides a latch-type interlocking and locking integrated device, which is applied to a three-stage segmented extension mechanism. The device comprises: a locking / interlocking mechanism, an interlocking bracket and a pin assembly, wherein the pin assembly is installed at the bottom of the first-stage segment, the locking / interlocking mechanism is installed at the head of the second-stage segment, and the interlocking bracket is installed at the head of the third-stage segment, wherein:

[0006] The locking / interlocking mechanism includes: a locking seat, a locking assembly and an interlocking assembly; the pin assembly includes: a locking pin; the locking seat provides an installation interface for the locking assembly and the interlocking assembly, and provides an entrance for the locking pin; and the locking assembly, the interlocking assembly and the locking pin are orthogonally distributed in space.

[0007] Optionally, the locking assembly includes: a lock tongue, a lock tongue spring and a fixed plate, the lock tongue is provided with a locking mating bevel and a non-mating surface, the locking mating bevel is provided with a self-locking angle, the non-mating surface is provided with a weight reducing groove, the rear end of the lock tongue is provided with a guide column, the guide column is used to guide the lock tongue spring, the lock tongue spring is used to apply an inward force to the lock tongue, the fixed plate is fixed to the locking seat by screws, and the rear end of the lock tongue extends out from the hole in the fixed plate.

[0008] Optionally, the interlocking assembly includes: a linear bearing, an interlocking rod, and a guide seat; the guide seat of the interlocking assembly is installed on the locking seat; the linear bearing is installed on the guide seat to provide lubrication and guidance for the axial movement of the interlocking rod.

[0009] Optionally, the interlocking assembly further comprises: an interlocking spring, wherein the interlocking spring is installed on the outside of the interlocking rod to provide an outward force for the guide rod.

[0010] Optionally, the interlocking assembly further comprises: a U-shaped frame, an unlocking cylinder, and a central shaft, wherein the U-shaped frame is mounted on the head of the interlocking rod, the central shaft is mounted on the U-shaped frame via a retaining ring, and the central shaft is covered with an unlocking cylinder.

[0011] Optionally, the interlocking assembly further comprises: a guide bracket, which is mounted on the locking seat by screws and is located below the U-shaped frame to provide a guide for the movement of the U-shaped frame.

[0012] Optionally, the interlocking assembly further comprises: two semicircular blocks, which are sleeved on the interlocking rod and mounted on the locking seat by screws to confine the interlocking spring in the guide seat.

[0013] Optionally, under the action of an interlocking spring, the end of the interlocking rod of the interlocking assembly is inserted into the hole of the interlocking bracket to achieve interlocking constraints of the second and third level segments.

[0014] Optionally, the pin assembly also includes: a locking pin seat, a locking pin is installed on the locking pin seat through a nut, a locking hole is provided on the locking pin, and the head of the locking pin is provided with an interlocking release slope and a locking slope; the unlocking cylinder rolls on the locking slope of the locking pin, and drives the interlocking rod to move axially through the U-shaped frame, the slope angle of the locking hole in the middle of the locking pin is the same as the slope angle of the lock tongue in the locking assembly, and the locking operation is performed by inserting the lock tongue into the locking hole.

[0015] Optionally, a weight-reducing hole is provided on the locking seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a latch-type interlocking and locking integrated device, which can be applied to various types of segmented extension mechanisms. The device can simultaneously realize locking and interlocking between segments at all levels, and has high connection stiffness, high reliability, and good synchronization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work. By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more obvious:

[0019] Figure 1A schematic structural diagram of a latch-type interlocking and locking integrated device provided in an embodiment of the present invention;

[0020] Figure 2 The structure of the locking / interlocking mechanism in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 3 The structure of the locking / interlocking mechanism in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 4 It is a structural schematic diagram of a locking seat in an embodiment of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a pin assembly in an embodiment of the present invention;

[0024] Figure 6 It is a structural schematic diagram of a locking assembly in an embodiment of the present invention;

[0025] Figure 7 Schematic diagram of the structure of the interlocking assembly in an embodiment of the present invention.

[0026] In the figure:

[0027] 1-locking / interlocking mechanism, 11-locking seat, 111-interlocking rod, 112-interlocking spring, 12-locking assembly, 121-locking tongue, 122-locking tongue spring, 123-fixed plate, 124-guide column, 13-interlocking assembly, 131-linear bearing, 132-interlocking spring, 133-interlocking rod, 134-guide seat, 135-stopper, 136-U-shaped frame, 137 guide bracket, 138-unlocking cylinder, 139-center axis, 2-interlocking bracket, 3-pin assembly, 31-locking pin seat, 32-locking pin, 34-locking hole, 35-interlocking release ramp, 36-locking ramp. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0029] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, connection can be used for fixing or for circuit connection.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] An embodiment of the present invention provides a latch-type interlocking and locking integrated device, which may include three parts: a locking / interlocking mechanism, an interlocking bracket and a pin assembly. The three parts are installed at different locations and are installed in stages. Taking the three-stage segmented extension mechanism as an example, the pin assembly is installed at the bottom of the first segment, the locking / interlocking mechanism is installed at the head of the second segment, and the interlocking bracket is installed at the head of the third segment.

[0033] In this embodiment, a locking seat is provided, which provides an installation interface for the locking assembly and the interlocking assembly and an entrance for the locking pin, and the three are arranged orthogonally. The locking device is realized by the bevel cooperation of the pin hole, the bevel angle is a self-locking angle, and the locking force is provided by the lock tongue spring. In this embodiment, the interlocking and unlocking between the latter two stages are realized by the linear motion of the constraint rod in the linear bearing in the guide seat. This embodiment has the function of realizing locking and interlocking / unlocking between the various segments, and the locking action and the interlocking release action are synchronized. The first and second stage locking are realized by designing the bevel angle of the locking pin head, and the interlocking between the second and third stages is released at the same time. In addition, the device also has the advantages of high connection stiffness and high reliability.

[0034] The technical details of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 A schematic diagram of a latch-type interlocking and locking integrated device provided in an embodiment of the present invention is shown in FIG. Figure 1 As shown, the device in this embodiment may include: a locking / interlocking mechanism 1 , an interlocking bracket 2 and a pin assembly 3 .

[0036] Figure 2 The structure of the locking / interlocking mechanism in the embodiment of the present invention is shown in FIG. Figure 1 , Figure 3 The structure of the locking / interlocking mechanism in the embodiment of the present invention is shown in FIG. Figure 2 ;like Figure 2 , Figure 3 As shown, the locking / interlocking mechanism may include: a locking seat 11, a locking assembly 12 and an interlocking assembly 13, wherein the locking assembly 12 includes: a locking tongue 121, a locking tongue spring 122 and a fixing plate 123. The interlocking assembly 13 includes: a linear bearing 131, an interlocking spring 132, an interlocking rod 133, a guide seat 134, a stopper 135, a U-shaped frame 136, a guide bracket 137, an unlocking cylinder 138 and a central shaft 139. The pin assembly 3 includes: a locking pin seat 31, a locking pin 32, and a switch contact. In the first and second unlocked states, the interlocking rod 133 in the interlocking assembly is inserted into the hole of the interlocking bracket 2 under the action of the interlocking spring 132, so as to realize the interlocking constraint between the second and third levels.

[0037] Figure 4 FIG. 1 is a schematic diagram of the structure of the locking seat in an embodiment of the present invention. Figure 4 As shown, the locking seat 11 provides a mounting interface for the locking assembly 12 and the interlocking assembly 13 and an entrance for the locking pin 32 , the three are arranged orthogonally, and a weight-reducing hole is also provided on the locking seat 11 .

[0038] Figure 5 FIG. 1 is a schematic diagram of the structure of the pin assembly in an embodiment of the present invention. Figure 5 As shown, the locking pin 32 in the pin assembly 3 is installed on the locking pin seat 31 through a nut, a locking hole 34 is provided on the locking pin 32, and a releasing interlocking inclined surface 35 and a locking inclined surface 36 are provided on the head of the locking pin 32. The locking pin 32 and the locking pin seat 31 are designed to reduce weight.

[0039] In this embodiment, the locking pin 32 is the active component of the device for locking and releasing the interlocking function. The head of the locking pin is designed as an inclined surface. The unlocking cylinder 138 in the interlocking assembly rolls on the inclined surface, and drives the interlocking rod 133 to move axially through the U-shaped frame 136. The inclined surface angle of the locking hole in the middle of the locking pin is the same as the inclined surface angle of the locking tongue of the locking assembly, which is a self-locking angle design. The locking function is achieved by inserting the locking tongue into the hole. The locking action and the interlocking release action of the device are synchronized. The first and second levels of locking are achieved by designing the inclined surface angle of the head of the locking pin 32, and the interlocking between the second and third levels is released at the same time.

[0040] Figure 6 FIG. 1 is a schematic diagram of the structure of the locking assembly in an embodiment of the present invention. Figure 6As shown, the locking matching bevel of the lock tongue 121 is designed as a self-locking angle, and the non-matching surface is designed with a weight reduction groove. The rear end of the lock tongue 121 is provided with a guide column 124 for guiding the lock tongue spring 122. The lock tongue spring 122 always applies an inward force to the lock tongue 121. The fixing plate 123 is fixed to the locking seat 11 by screws, and the rear end of the lock tongue 121 extends out from the hole in the fixing plate. The axial limit function is achieved by screwing a nut and a gasket on the end threaded section to prevent the lock tongue 121 from entering the locking seat 11 under the action of the lock tongue spring 122.

[0041] Figure 7 Schematic diagram of the structure of the interlocking assembly in the embodiment of the present invention. Figure 7 As shown, the guide seat of the interlocking assembly 13 is installed on the locking seat 11, and the linear bearing 131 is installed on the guide seat to provide lubrication and guidance for the axial movement of the interlocking rod 133. The interlocking spring 132 is installed on the outside of the interlocking rod 133 to always provide an outward force for the guide rod. A U-shaped frame is installed on the head of the interlocking rod 133, and the center axis is installed on the U-shaped frame through a retaining ring. The center axis is covered with an unlocking cylinder, and the guide bracket is installed on the locking seat 11 through screws, and is located below the U-shaped frame to provide a guiding effect on the movement of the U-shaped frame.

[0042] Further, the locking function of the present invention is explained. Exemplarily, taking the three-stage segmented extension mechanism as an example, the pin assembly is installed at the bottom of the first segment, and the locking / interlocking mechanism is installed at the head of the second segment. In the initial state, the lock tongue is at the maximum stroke under the action of the lock tongue spring, the nut gasket at the tail of the lock tongue is stuck on the fixed plate, the first segment is gradually unfolded, the locking pin enters the locking seat, the head inclined surface releases the lock tongue, and under the action of the locking pin, the lock tongue slides on the locking inclined surface, the lock tongue moves outward, the lock tongue spring is compressed, and as the locking pin moves further upward, the lock tongue moves relatively to the locking hole position on the pin, and enters the locking hole under the action of the lock tongue spring. Through the cooperation of the lock tongue and the self-locking inclined surface of the locking hole, the lock tongue is tightened under the action of the lock tongue spring, and the first and second segments are locked. At this time, the lock tongue stroke is less than the maximum stroke in the initial state.

[0043] Further, the interlocking / releasing function of the present invention is described. Exemplarily, taking the three-stage segmented extension mechanism as an example, the pin assembly is installed at the bottom of the first stage segment, the locking / interlocking mechanism is installed at the head of the second stage segment, and the interlocking bracket is installed at the head of the third stage segment. In the initial state, the interlocking rod of the interlocking / unlocking assembly reaches the maximum outward stroke under the action of the interlocking spring. At this time, the end of the interlocking rod is inserted into the center hole of the interlocking bracket of the head of the third stage segment to achieve the interlocking between the second and third stage segments. As the mechanism unfolds, the first stage segment gradually unfolds, the locking pin enters the locking seat, and the interlocking inclined surface of the locking pin head releases the unlocking cylinder. As the locking pin continues to move, the unlocking cylinder rolls on the inclined surface. The unlocking cylinder is connected to the U-shaped frame through the central axis. The U-shaped frame and the interlocking rod are screwed, so the U-shaped frame slides on the guide seat, driving the interlocking rod to move linearly, inward, and the interlocking spring is compressed. Through the design and adjustment of the inclined surface angle, when the locking assembly between the first and second stages triggers the lock, the end of the interlocking rod is pulled out from the interlocking bracket, and the second and third stages are released from interlocking.

[0044] In the present invention, the functions of releasing the interlock and locking are synchronized, and the above embodiments can realize the orderly and sequential deployment of the multi-stage segmented extension mechanism.

[0045] The present invention provides a latch-type interlocking and locking integrated device, which can be applied to various types of segmented extension mechanisms. The device can simultaneously realize locking and interlocking between segments at all levels, and has the advantages of high connection stiffness, high reliability, and good synchronization.

[0046] The above is the core idea of ​​the present invention. In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above description of the disclosed embodiments enables professionals and technicians in this field to implement or use the present invention. Various modifications to these embodiments will be obvious to professionals and technicians in this field, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown in this article, but will comply with the widest range consistent with the principles and novel features disclosed herein.

[0048] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A latch-type interlocking and locking integrated device, characterized in that: Applicable to a three-stage segmented extension mechanism, the device comprises: a locking / interlocking mechanism (1), an interlocking bracket (2) and a pin assembly (3), wherein the pin assembly (3) is installed at the bottom of the first stage segment, the locking / interlocking mechanism (1) is installed at the head of the second stage segment, and the interlocking bracket (2) is installed at the head of the third stage segment, wherein: The locking / interlocking mechanism (1) comprises: a locking seat (11), a locking assembly (12) and an interlocking assembly (13); the pin assembly (3) comprises: a locking pin (32); the locking seat (11) provides an installation interface for the locking assembly (12) and the interlocking assembly (13), and provides an entrance for the locking pin (32); and the locking assembly (12), the interlocking assembly (13) and the locking pin (32) are orthogonally distributed in space; the interlocking assembly (13) comprises an interlocking rod (133), and when the end of the interlocking rod (133) is inserted into the hole of the interlocking bracket (2), a second and third level segmented interlocking constraint is achieved.

2. The latch-type interlocking and locking integrated device according to claim 1, characterized in that: The locking assembly (12) comprises: a locking tongue (121), a locking tongue spring (122) and a fixing plate (123); the locking tongue (121) is provided with a locking matching bevel and a non-matching surface; the locking matching bevel is provided with a self-locking angle; the non-matching surface is provided with a weight-reducing groove; a guide column (124) is provided at the rear end of the locking tongue (121); the guide column (124) is used to guide the locking tongue spring (122); the locking tongue spring (122) is used to apply an inward force to the locking tongue (121); the fixing plate (123) is fixed to the locking seat (11) by screws; and the rear end of the locking tongue (121) extends out from a hole in the fixing plate (123).

3. The latch-type interlocking and locking integrated device according to claim 2, characterized in that: The interlocking assembly (13) comprises: a linear bearing (131) and a guide seat (134); the guide seat (134) of the interlocking assembly (13) is mounted on the locking seat (11); the linear bearing (131) is mounted on the guide seat (134) to provide lubrication and guidance for the axial movement of the interlocking rod (133).

4. The latch-type interlocking and locking integrated device according to claim 3, characterized in that: The interlocking assembly (13) further comprises an interlocking spring (132), wherein the interlocking spring (132) is installed on the outside of the interlocking rod (133) to provide an outward force for the guide rod.

5. The latch-type interlocking and locking integrated device according to claim 3 or 4, characterized in that: The interlocking assembly (13) further comprises: a U-shaped frame (136), an unlocking cylinder (138), and a central shaft (139); the U-shaped frame (136) is mounted on the head of the interlocking rod (133); the central shaft (139) is mounted on the U-shaped frame (136) via a retaining ring; the unlocking cylinder (138) is sheathed on the central shaft (139).

6. The latch-type interlocking and locking integrated device according to claim 5, characterized in that: The interlocking assembly (13) further comprises: a guide bracket (137), the guide bracket (137) being mounted on the locking seat (11) by means of screws and being located below the U-shaped frame (136) to provide a guide for the movement of the U-shaped frame (136).

7. The latch-type interlocking and locking integrated device according to claim 4, characterized in that: The interlocking assembly (13) further comprises: two semicircular stoppers (135), wherein the stoppers (135) are sleeved on the interlocking rod (133) and mounted on the locking seat (11) via screws, so as to restrict the interlocking spring (132) in the guide seat (134).

8. The latch-type interlocking and locking integrated device according to claim 4, characterized in that: Under the action of the interlocking spring (132), the end of the interlocking rod (133) of the interlocking assembly (13) is inserted into the hole of the interlocking bracket (2), thereby realizing the interlocking constraint of the second and third levels of the segments.

9. The latch-type interlocking and locking integrated device according to claim 5, characterized in that: The pin assembly (3) further comprises: a locking pin seat (31), a locking pin (32) being mounted on the locking pin seat (31) via a nut, a locking hole (34) being provided on the locking pin (32), and a head of the locking pin (32) being provided with a releasing interlocking inclined surface (35) and a locking inclined surface (36); the unlocking cylinder (138) rolling on the locking inclined surface (36) of the locking pin (32), and driving the interlocking rod (133) to move axially via the U-shaped frame (136); the inclined surface angle of the locking hole in the middle of the locking pin (32) is the same as the inclined surface angle of the locking tongue (121) in the locking assembly (12), and the locking operation is performed by inserting the locking tongue (121) into the locking hole (34).

10. The latch-type interlocking and locking integrated device according to claim 1, characterized in that: The locking seat (11) is provided with a weight-reducing hole.

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