Quick-release lock

Abstract

The invention discloses a quick-release lock which comprises a lock plate, a lock body and a lock sleeve, the lock sleeve is arranged outside the lock body in a sleeving mode, an elastic lock pin assembly is arranged at the upper end of the lock body, a push block return assembly is arranged in the lock body and arranged below the elastic lock pin assembly, a retractable inserting hole is formed in the elastic lock pin assembly, and a lock pin safety buckle is arranged on one side of the retractable inserting hole. The lock body is provided with a sliding block capable of moving up and down, the sliding block is connected with the lock sleeve, a second spring is connected between the sliding block or the lock sleeve and the lock body, the lock plate is used for being inserted into a retractable inserting hole of the elastic lock pin assembly and pushing the push block return assembly into the lock body, and the elastic lock pin assembly retracts through the retractable inserting hole to lock the lock plate. The sliding block is used for moving upwards to be inserted into the lock pin safety buckle of the elastic lock pin assembly, and the retractable insertion hole is prevented from expanding and returning. According to the quick-release lock, one-step connection with one hand and two-step release with one hand can be achieved, and the work efficiency and safety of the quick-release lock are improved.

Description

Technical Field

[0001] The invention particularly relates to a quick-release lock. Background Art

[0002] When flying an aircraft, the pilot needs to connect to the life-saving bag on the ejection seat. In normal flight, the pilot should be able to easily connect to the life-saving bag after entering the aircraft, and should be able to easily disconnect from the life-saving bag when leaving the aircraft. During the emergency ejection survival process, the connection between the pilot and the life-saving bag should be reliable and will not be released in the event of overload or accidental impact. After ejection and landing, the pilot should be able to manually release the connection with the life-saving bag in order to call for help and survive. For this reason, it is necessary to develop a quick-release lock that can be easily connected and released and has good ergonomics to meet the needs of the pilot connecting to the life-saving bag. Summary of the invention

[0003] The purpose of the present invention is to provide a quick release lock, which realizes one-hand one-step connection and one-hand two-step release, thereby improving the ergonomics and safety of the quick release lock.

[0004] The technical solution adopted by the present invention is: A quick-release lock comprises a locking piece, a lock body, an elastic locking pin assembly and a locking sleeve. The locking sleeve is sleeved on the lock body, the elastic locking pin assembly is arranged at the upper end of the lock body, a pushing block returning assembly is arranged inside the lock body, the pushing block returning assembly is arranged below the elastic locking pin assembly, a retractable socket is arranged inside the elastic locking pin assembly, a locking pin safety buckle is arranged on one side of the retractable socket, a sliding block which can move up and down is arranged on the lock body, the sliding block is connected with the locking sleeve, a second spring is connected between the sliding block or the locking sleeve and the lock body, the locking piece is used to be inserted into the retractable socket of the elastic locking pin assembly, and the pushing block returning assembly is pushed into the lock body, the elastic locking pin assembly retracts through the retractable socket to lock the locking piece, and the sliding block is used to move upward and be inserted into the locking pin safety buckle of the elastic locking pin assembly to prevent the retractable socket from expanding and returning to its position, so as to prevent the locking piece from coming out of the elastic locking pin assembly and the lock body.

[0005] Preferably, the elastic locking pin assembly includes two locking pins that are staggered and snap-fitted with each other, a first spring is connected between the two locking pins or between the locking pin and the lock body, the inner end of one locking pin is snapped into the other locking pin, and together with the inner end of the other locking pin, a retractable socket with a variable cross-section is formed, and the outer end of the locking pin serves as a locking pin safety buckle.

[0006] Preferably, slide grooves are provided on both sides of the lock body, a slider is provided in each slide groove, and a second spring is connected between the slider and the lock body; when the quick-release lock is in a locked state, the slider drives the lock sleeve to move upward, and the upper ends of the two sliders are respectively inserted into the inner sides of the lock pin safety buckles at the outer ends of the two lock pins, and the lock sleeve wraps the elastic lock pin assembly inside.

[0007] Preferably, the locking pin is U-shaped or gate-shaped.

[0008] Preferably, a plug is provided at the lower end of the locking piece, and the plug is in the shape of an inverted trapezoid or an inverted triangle.

[0009] Preferably, grooves are provided on both sides of the locking sheet, and the grooves are arranged above the plug.

[0010] Preferably, a stopper is provided on the outer side of the inner ends of the two lock pins, the stopper is connected to the inner end of the corresponding lock pin through a first spring, and the stopper is fixedly connected to the lock body; the upper end of the slider can be moved upward and inserted into the space between the lock pin safety buckle and the stopper at the outer end of the corresponding lock pin.

[0011] Preferably, the push block return assembly comprises a push block and a third spring, and two ends of the third spring are respectively connected to the push block and the lock body.

[0012] Preferably, the push block return assembly further comprises a cushion block, which is fixed in the lock body, and the third spring is connected to the lock body via the cushion block.

[0013] Preferably, a groove is provided in the middle of the lock body, the push block return assembly is arranged in the groove of the lock body, and a cover plate is provided on the groove of the lock body, and the cover plate is connected to the side of the lock body by screws. The beneficial effects of the present invention are: When the quick-release lock is locked, the lock piece is held by one hand and inserted into the retractable insertion hole of the elastic lock pin assembly. The elastic lock pin assembly locks the lock piece, and the upper end of the slider is inserted into the lock pin safety buckle of the elastic lock pin assembly to prevent the retractable insertion hole of the elastic lock pin assembly from accidentally expanding, thereby preventing the lock piece from accidentally falling out of the elastic lock pin assembly and the lock body, and the lock sleeve wraps the lock body and the elastic lock pin assembly therein, and the slider and the lock sleeve together form a sliding protection mechanism; when the quick-release lock is unlocked, the lock sleeve is pushed down by one hand to drive the slider to move out of the lock pin safety buckle of the elastic lock pin assembly The lock piece is disengaged from the dangerous buckle, and the elastic locking pin assembly is pressed from both sides to expand the retractable socket of the elastic locking pin assembly back to its original position, and the push block recovery assembly pushes the locking piece out of the lock body and the retractable socket of the elastic locking pin assembly; one-handed one-step connection and one-handed two-step release are realized, and the locking pin in the locked state is protected by the sliding protection mechanism, thereby improving the ergonomics and safety of the quick-release lock, and is particularly suitable for the connection between pilots and related items, such as life-saving kits. Pilots can quickly connect and release the life-saving kits, which is suitable for various complex life-saving scenarios for pilots. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 1 is a schematic diagram of the structure of the quick-release lock in a locked state according to an embodiment of the present invention.

[0015] Figure 2 It is a schematic diagram of the structure of the quick-release lock in the unlocked state according to an embodiment of the present invention.

[0016] Figure 3 Schematic diagram of the internal structure of the quick-release lock in the locked state according to the embodiment of the present invention.

[0017] Figure 4 Schematic diagram of the internal structure of the quick-release lock in the unlocked state according to the embodiment of the present invention.

[0018] Figure 5 It is an exploded schematic diagram of a quick release lock in an embodiment of the present invention.

[0019] In the figure: 1-lock body; 2-block; 3-lock pin; 31-first spring; 4-slider; 41-second spring; 5-push block; 51-third spring; 6-cover plate; 7-pad; 8-lock sleeve; 9-connecting plate; 10-locking plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 directly connected or indirectly connected 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.

[0023] Example 1 A quick release lock, such as Figures 1 to 5As shown, it includes a lock piece 10, a lock body 1, an elastic lock pin assembly, a lock sleeve 8 and a connecting plate 9, the lock sleeve 8 is sleeved outside the lock body 1, the elastic lock pin assembly is arranged at the upper end of the lock body 1, a push block return assembly is arranged in the lock body 1, the push block return assembly is arranged below the elastic lock pin assembly, a retractable socket is arranged in the elastic lock pin assembly, a lock pin safety buckle is arranged on one side of the retractable socket, a slider 4 that can move up and down is arranged on the lock body 1, the slider 4 is connected to the lock sleeve 8, and a second elastic The spring 41, the locking piece is used to be inserted into the retractable socket of the elastic locking pin assembly, and the push block recovery assembly is pushed into the lock body 1, the elastic locking pin assembly automatically retracts through the retractable socket to lock the locking piece, the slider is used to move up and insert into the locking pin safety buckle of the elastic locking pin assembly, the locking pin safety buckle is arranged on one side of the retractable socket to prevent the retractable socket from accidentally expanding, and prevent the locking piece from coming out of the elastic locking pin assembly and the lock body, the connecting plate 9 passes through the lower end of the lock sleeve 8 and is connected to the lower end of the lock body 1, and the locking piece and the connecting plate 9 are used to respectively connect with the two When the quick-release lock is in the locked state, the locking piece 10 is inserted into the retractable socket of the elastic locking pin assembly, and the elastic locking pin assembly retracts through the retractable socket to lock the locking piece, and the upper end of the slider is inserted into the locking pin safety buckle of the elastic locking pin assembly to prevent the retractable socket of the elastic locking pin assembly from expanding and rebounding, thereby preventing the locking piece from accidentally falling out of the elastic locking pin assembly and the lock body, and the lock sleeve wraps the lock body and the elastic locking pin assembly therein, which can effectively prevent the elastic locking pin assembly from being accidentally compressed, causing the retractable socket to fall out of the lock body. The hole expands and rebounds, and the slider and the lock sleeve together constitute a sliding protection mechanism; when the quick-release lock is unlocked, the lock sleeve 8 is pulled down to drive the slider 4 to disengage from the lock pin safety buckle of the elastic lock pin assembly, and press the two sides of the elastic lock pin assembly to expand the retractable socket of the elastic lock pin assembly, and the push block recovery assembly pushes the lock plate out of the lock body and the retractable socket of the elastic lock pin assembly, and the push block recovery assembly extends into the retractable socket, and the outer end of the lock pin of the elastic lock pin assembly just blocks the upward movement path of the slider to prevent the slider and the lock sleeve from moving up.

[0024] Example 2 The elastic locking pin assembly is further limited on the basis of Example 1, and the performance of Example 2 after the limitation is better.

[0025] The elastic locking pin assembly includes two locking pins 3 that are staggered and buckled with each other, and a first spring 31 is connected between the two locking pins 3 or between the locking pin 3 and the lock body. The inner end of one locking pin is buckled into the other locking pin, and together with the inner end of the other locking pin, forms a retractable socket with a variable cross-section, and the outer end of the locking pin 3 serves as a locking pin safety buckle; the two locking pins can slide left and right with respect to each other, and when the outer ends of the two locking pins are pressed from both sides, the two locking pins can slide close to each other, so that the retractable socket is expanded; when the outer ends of the two locking pins lose external force, the spring force of the first spring 31 causes the two locking pins to slide away from each other, so that the retractable socket is contracted.

[0026] Furthermore, the first end of the lock pin is buckled into another lock pin, which is the inner end of the lock pin, and the second end of the lock pin is arranged outside the other lock pin, which is the outer end of the lock pin.

[0027] Furthermore, slide grooves are provided on both sides of the lock body, and a slider is provided in each slide groove. A second spring 41 is connected between the slider and the bottom of the slide groove of the lock body; when the quick release lock is in the locked state, after the slider drives the lock sleeve to move upward, the upper ends of the two sliders are respectively inserted into the inner sides of the lock pin safety buckles at the outer ends of the two lock pins. (i.e. the upper end of the slider is inserted into the outer end of the corresponding lock pin and the other lock pin between the inner ends), The lock sleeve covers the elastic lock pin assembly to prevent the elastic lock pin assembly from being touched and affected by foreign objects.

[0028] Furthermore, the locking pin is U-shaped or door-shaped, so that when the locking piece is inserted downward, the plug of the locking piece pushes the two locking pins to both sides, so that the retractable socket of the elastic locking pin assembly expands, thereby facilitating the insertion of the locking piece plug.

[0029] Furthermore, a plug is provided at the lower end of the locking piece, and the plug is in the shape of an inverted trapezoid or an inverted triangle; when the locking piece is inserted downward, the inclined surfaces on both sides of the plug push the two locking pins outward, so that the retractable socket expands, so as to facilitate the plug to be inserted into the retractable socket.

[0030] Furthermore, grooves are provided on both sides of the locking piece, and the grooves are arranged above the plug; the grooves are used for the retractable socket to retract into the grooves after the locking piece is inserted into the elastic locking pin assembly, so as to further lock the plug and the locking piece.

[0031] Furthermore, a block 2 is provided on the outer side of the inner ends of the two lock pins 3, and the block 2 is connected to the inner end of the corresponding lock pin through a first spring 31, and the block 2 is connected and fixed to the lock body 1; the upper end of the slider can be moved upward and inserted into the space between the lock pin safety buckle at the outer end of the corresponding lock pin and the corresponding block 2.

[0032] Furthermore, the side surfaces of the two blocks 2 are respectively fitted with the two locking pins 3 (i.e., the block is connected to one locking pin via a first spring 31, and the side surface of the block is fitted with the other locking pin), a waist-shaped hole is provided on the locking pin 3 along the length direction of the locking pin, and a protrusion is provided on the side surface of the block 2 fitted with the locking pin, and the protrusion is arranged in the waist-shaped hole, and the lateral movement range of the locking pin is limited by the protrusion and the waist-shaped hole.

[0033] Furthermore, the inner side surface of the inner end of the locking pin is an upwardly disposed inclined surface (that is, the two inner side surfaces of the retractable socket are upwardly disposed inclined surfaces); this facilitates the insertion of the plug of the locking piece into the retractable socket.

[0034] Furthermore, the push block restoring assembly comprises a push block 5 and a third spring 51 , and two ends of the third spring 51 are connected to the push block 5 and the lock body 1 respectively.

[0035] Furthermore, the push block return assembly further includes a cushion block 7 , which is fixed in the lock body 1 , and the third spring 51 is connected to the lock body 1 via the cushion block 7 .

[0036] Furthermore, a groove is provided in the middle of the lock body 1, the push block return assembly is arranged in the groove of the lock body 1, and a cover plate 6 is provided on the groove of the lock body 1, and the cover plate 6 is connected to the side of the lock body 1 by screws or bolts.

[0037] Working principle of the present invention: The quick release lock of the present invention is generally used to connect a pilot and a life-saving bag. Through the quick release lock, the two can be connected in one step with one hand and released in two steps with one hand, thereby improving the ergonomics and safety of connection and separation. The quick release lock is composed of a lock pin 3, a slider 4 and a push block 5 to form an elastic lock pin assembly, and a slider 4 and a lock sleeve 8 to form a sliding protection mechanism. When the quick release lock is in an unlocked state, the push block 5 extends between the lock pins 3, so that the lock pin 3 is in an open state, and the opened lock pin 3 resists the slider 4, so that the sliding protection mechanism is in an open state; when the lock plate is inserted into the quick release lock, the lock plate pushes the push block 5 out of the retractable socket of the lock pin 3 and inserts it therein, and the lock pin 3 rebounds and moves toward the middle to clamp the lock plate, releasing the limit on the slider 4; the slider 4 drives the lock sleeve 8 to move upward under the action of the second spring 41, and the sliding protection mechanism returns to its position; the slider 4 extends between the block 2 and the lock pin 3, and the lock sleeve 8 blocks the outer side of the lock pin 3, forming a protection for the lock pin 3 in the locked state.

[0038] like Figure 3~Figure 5 As shown, the lock body 1 of the quick-release lock provides space for the installation and movement of other parts. The lock pin 3 is installed oppositely in the square hole of the lock body 1. The block 2 is installed on the outside of the square hole by rivets, and the first spring 31 is installed between the block 2 and the lock pin 3 to provide the restoring force of the lock pin 3. There are circular grooves on the lock pin 3 and the block 2 to position the first spring 31. The cylindrical protrusion of the block 2 and the waist-shaped hole of the lock pin 3 cooperate to limit the travel of the lock pin 3. The lock pin 3 is locked by the inner trapezoidal protrusion into the groove of the lock plate. The outer surface of the sheet-like protrusion of the lock pin 3 is made with straight lines to increase the friction for the pilot to press and release the connection.

[0039] The push block 5, the third spring 51 and the cushion block 7 are installed in the slot in the middle of the lock body 1, and the slot is closed by the cover plate 6 and screws. The push block 5 provides a restoring force through the third spring 51 to realize the function of pushing out the lock plate and locking the lock pin 3 when the lock is released. The U-shaped structure of the push block 5 and the cushion block 7, the bottom surface of the slot of the lock body 1 and the cover plate 6 limit the movement of the third spring 51. The cushion block 7 can limit the movable stroke of the push block 5 to prevent the push block from getting stuck.

[0040] The slider 4 and the second spring 41 are installed in the square grooves on both sides of the lock body 1. The slider 4 is provided with restoring force by the second spring 41, and slides back and forth in the square groove. The protruding structure on the front of the slider 4 is inserted between the lock pin 3 and the block 2 in the locked state to prevent the lock pin 3 from being accidentally unlocked by external force, and at the same time drive the lock sleeve 8 to return to its original position and form protection on the outside of the lock pin 3; in the open state, it supports the bottom surface of the lock pin 3 and stops the lock sleeve 8 in the open position to prevent the lock sleeve 8 from returning to clamp the pilot's gloves or fingers, and at the same time serves as an indication of the state of the quick release lock being opened. The lock body 1 has a deep hole structure behind the square groove to accommodate the second spring 41, and a drainage hole to prevent water vapor from accumulating in the deep hole.

[0041] The lock sleeve 8 is connected to the slider 4 by two screws and moves with the slider 4. The protrusions on both sides of the lock sleeve 8 are shaped to facilitate the pilot to locate the operating area. The pilot presses the protrusions on both sides of the lock sleeve 8 with his fingers and slides the lock sleeve 8 downward to expose the lock pin 3; at the same time, the slider 4 is driven to make its protrusion structure slide out from between the lock pin 3 and the block 2 to release the protection.

[0042] The connecting plate 9 is connected to the lock body 1 by rivets, and supports the quick-release lock to be installed upright on the ejection seat life-saving bag, which is convenient for the pilot to operate with one hand.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A quick release lock, characterized in that: The invention comprises a lock plate (10), a lock body (1), and a lock sleeve (8), wherein the lock sleeve (8) is sleeved on the outside of the lock body (1), an elastic lock pin assembly is arranged at the upper end of the lock body (1), a push block return assembly is arranged in the lock body (1), the push block return assembly is arranged below the elastic lock pin assembly, a retractable socket is arranged in the elastic lock pin assembly, a lock pin safety buckle is arranged on one side of the retractable socket, a slider (4) movable up and down is arranged on the lock body (1), the slider (4) is connected to the lock sleeve (8), a second spring (41) is connected between the slider (4) or the lock sleeve (8) and the lock body (1), the lock plate is used to be inserted into the retractable socket of the elastic lock pin assembly, and the push block return assembly is pushed into the lock body (1), the elastic lock pin assembly retracts through the retractable socket to lock the lock plate, and the slider is used to move upward and insert into the lock pin safety buckle of the elastic lock pin assembly to prevent the retractable socket from expanding and returning to its original position.

2. The quick release lock according to claim 1, characterized in that: The elastic lock pin assembly comprises two lock pins (3) that are staggered and buckled with each other, a first spring (31) is connected between the two lock pins (3) or between the lock pin (3) and the lock body, the inner end of one lock pin is buckled into the other lock pin, and together with the inner end of the other lock pin, a retractable insertion hole with a variable cross-section is formed, and the outer end of the lock pin (3) serves as a lock pin safety buckle.

3. The quick release lock according to claim 2, characterized in that: Slide grooves are provided on both sides of the lock body, and a slider is provided in each slide groove. A second spring (41) is connected between the slider and the lock body. When the quick release lock is in a locked state, the slider drives the lock sleeve to move upward, and the upper ends of the two sliders are respectively inserted into the inner sides of the lock pin safety buckles at the outer ends of the two lock pins.

4. The quick release lock according to claim 2, characterized in that: The lock pin is U-shaped or gate-shaped.

5. The quick release lock according to claim 2, characterized in that: A plug is arranged at the lower end of the locking piece, and the plug is in the shape of an inverted trapezoid or an inverted triangle.

6. The quick release lock according to claim 5, characterized in that: A stopper (2) is provided on the outer side of the inner end of each of the two lock pins (3); the stopper (2) is connected to the inner end of the corresponding lock pin via a first spring (31); and the stopper (2) is connected and fixed to the lock body (1).

7. The quick release lock according to claim 5, characterized in that: The inner side surface of the inner end of the locking pin is an upwardly arranged inclined surface.

8. The quick release lock according to claim 1, characterized in that: The push block return assembly comprises a push block (5) and a third spring (51), and two ends of the third spring (51) are respectively connected to the push block (5) and the lock body (1).

9. The quick release lock according to claim 8, characterized in that: The push block return assembly further comprises a cushion block (7), which is fixedly arranged in the lock body (1), and the third spring (51) is connected to the lock body (1) via the cushion block (7).

10. The quick release lock according to claim 1, characterized in that: A groove is provided in the middle of the lock body (1), the push block return assembly is arranged in the groove of the lock body (1), and a cover plate (6) is provided on the groove of the lock body (1), and the cover plate (6) is connected to the side of the lock body (1).

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