Locking mechanism with double-insurance function

Abstract

The invention belongs to the technical field of locking mechanisms, and particularly relates to a locking mechanism with a double-insurance function, which comprises a main body and a lock rod in sliding connection with the main body, the first limiting assembly is arranged in the main body and used for limiting movement of the lock rod; the rotating handle is rotationally connected with the main body, and the side surface of the rotating handle is linked with the lock rod; wherein the rotating handle is suitable for driving the lock rod to move up and down during rotation; the second limiting assembly is arranged in the rotating handle and used for limiting rotation of the rotating handle, according to the locking mechanism with the double-insurance function, the first limiting assembly is arranged to detect whether the modular assembly is installed in place or not, and it is avoided that the modular assembly which is not installed in place is locked; unlocking is achieved through rotation cooperation of the second limiting assembly and the rotating handle, the situation that unlocking can be achieved by independently touching the second limiting assembly by mistake or rotating the rotating handle by mistake is avoided, and therefore the effect of achieving the double insurance functions of insurance installation and insurance unlocking is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of locking mechanisms, and in particular relates to a locking mechanism with double insurance functions. Background Art

[0002] In areas such as industrial equipment, rapid connection technology for modular components has become key to improving production efficiency and equipment flexibility. For example, robotic arm end effectors, which require frequent replacement in industrial automation production lines, rely on efficient and reliable locking mechanisms for rapid assembly and disassembly, as well as secure connections. Traditional quick locking mechanisms mostly use a press-type mechanism. Although it can meet the needs of convenient operation, the single unlocking logic poses a significant safety hazard.

[0003] First, when the operator accidentally touches the unlock button, it is very easy for the modular components to fall off accidentally; Secondly, after locking, it is necessary to manually check whether it is installed in place. If it is not installed in place, it is easy to connect and separate, and there is a risk of forgetting to check. Therefore, in order to solve the above problems, it is necessary to design a locking mechanism with double insurance functions. Summary of the Invention

[0004] The purpose of the present invention is to provide a locking mechanism with dual safety functions to solve the technical problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the present invention provides a locking mechanism with dual insurance functions, comprising: a main body and a locking rod slidably connected to the main body; a first limiting assembly, disposed in the main body and configured to limit movement of the locking rod; The rotating handle is connected to the main body in rotation, and its side is linked to the locking rod; The rotating handle is adapted to drive the locking rod to move up and down when rotating; The second limiting component is arranged in the rotating handle and is used to limit the rotation of the rotating handle.

[0006] Furthermore, the top of the main body is provided with a first hole and a second hole; The locking rod is placed in the first hole and is slidably connected to the first hole; A third hole communicating with the first hole and the second hole is provided on the side surface of the main body; The first limiting component includes: a first floating steel ball disposed in the third hole; The first floating steel ball is located between the first hole and the second hole; and When the first floating steel ball is located in the third hole and the first hole, the lock rod is restricted from moving; When the first floating steel ball is located in the third hole and the second hole, the restriction on the movement of the locking rod is released.

[0007] Furthermore, the locking rod is provided with a first annular groove; The first limiting assembly further includes: a first trigger rod disposed in the second hole; The first trigger rod is slidably connected to the second hole; and A second annular groove is provided on the first trigger rod; When the first floating steel ball is located in the third hole and the first annular groove, the lock rod is restricted from moving; When the first floating steel ball is located in the third hole and the second annular groove, the restriction on the movement of the locking rod is released.

[0008] Furthermore, a first threaded portion is provided on the upper portion of the second hole; A first limiting sliding portion is provided on the upper portion of the first trigger lever; The first limiting assembly further includes: a first limiting ring sleeved on the first limiting sliding portion and a first spring disposed in the second hole; The first limiting sliding portion is slidably connected to the first limiting ring; The outer portion of the first limiting ring is threadedly connected to the first threaded portion; Two ends of the first spring are in contact with the bottom of the first trigger rod and the bottom of the second hole respectively.

[0009] Furthermore, a rotating handle avoidance portion communicating with the first hole is provided on the side of the main body; The rotating handle avoidance portion is adapted to avoid the rotating handle so that the rotating handle can be linked with the locking rod; The locking rod is provided with a conical downward pressing surface and a conical upward pushing surface; The side surface of the rotating handle is provided with a downward pressing plane and an upward pushing plane; The rotating handle is adapted to contact the upward pushing surface with the conical upward pushing surface when the rotating handle is rotated clockwise, so as to push the locking rod upward in the first hole; The rotating handle is adapted to contact the downward pressing surface with the conical downward pressing surface when the rotating handle is rotated counterclockwise, so that the downward pressing locking rod moves downward in the first hole.

[0010] Furthermore, the locking rod is provided with a conical limiting surface; The side surface of the rotating handle is provided with an arc-shaped limiting surface; When the rotating handle is rotated clockwise to the limit, the arc-shaped limiting surface contacts the conical upward pushing surface and the conical limiting surface to limit the locking rod from moving up and down.

[0011] Furthermore, the main body is provided with a T-shaped rotating shaft; The T-shaped rotating shaft member passes through the main body and is rotatably connected to the main body; The rotating handle is sleeved on the T-shaped rotating shaft; One end of the T-shaped rotating shaft is threadedly connected with a bolt; The bolt is suitable for limiting the rotation of the handle.

[0012] Furthermore, the main body is provided with a first conical recess and a second conical recess; The rotating handle is provided with a fourth hole and a fifth hole; wherein The fourth hole is connected to the fifth hole; The second limiting component includes: a second floating steel ball disposed in the fifth hole; When the second floating steel ball is located in the fifth hole and the first conical recess or the second conical recess, the rotation of the rotation handle is restricted; and When the second floating steel ball is located in the fourth hole and the fifth hole, the rotation restriction of the rotation handle is cancelled.

[0013] Furthermore, the second limiting assembly further comprises: a second trigger rod disposed in the fourth hole; The second trigger rod is slidably connected to the fourth hole; A third annular groove is provided on the second trigger rod; and When the second floating steel ball is located in the fifth hole and the third annular groove, the restriction on the rotation of the rotation handle is released.

[0014] Furthermore, a second threaded portion is provided on the upper portion of the fourth hole; A second limiting sliding portion is provided on the upper portion of the second trigger lever; The second limiting assembly further includes: a second limiting ring sleeved on the second limiting sliding portion and a second spring disposed in the fourth hole; The second limiting sliding portion is slidably connected to the second limiting ring; The outer portion of the second limiting ring is threadedly connected to the second threaded portion; Two ends of the second spring are in contact with the bottom of the second trigger rod and the bottom of the fourth hole respectively.

[0015] The beneficial effects of the present invention are: (1) The present invention sets a first limiting component to detect whether the modular component is installed in place. If it is not installed in place, the locking rod cannot move, otherwise it can move, thereby avoiding the situation where the modular component that is installed in place is not locked; unlocking is achieved by the cooperation of the second limiting component and the rotation of the rotating handle, thereby avoiding the situation where unlocking can be achieved by accidentally touching the second limiting component alone or accidentally rotating the rotating handle, thereby achieving the dual insurance function of installation insurance and unlocking insurance.

[0016] (2) In the initial state of the present invention, the first spring of the first limiting assembly pushes up the first trigger rod to protrude from the surface of the main body. At this time, the first floating steel ball is located in the first annular groove and the third hole of the locking rod and limits the movement of the locking rod. When the modular assembly is not installed in place, the first floating steel ball jams the locking rod, making it unable to move (that is, it cannot be locked by turning the handle); when the modular assembly is installed in place, the first trigger rod is completely pressed into the second hole of the main body and compresses the first spring. At this time, the second annular groove is flush with the third hole. When the locking rod moves up, the first floating steel ball is pushed into the third hole and the second annular groove to release the restriction on the locking rod and allow it to move, thereby avoiding the risk of locking before installation.

[0017] (3) In the present invention, when the handle needs to be turned, the second trigger rod is pressed downward and the second spring is compressed, so that the second trigger rod slides in the fourth hole. When the second trigger rod moves downward, the third annular groove gradually aligns with the position of the fifth hole, and the second floating steel ball can enter the third annular groove. Under the squeezing of the rotating handle, the second floating steel ball withdraws from the first conical recess or the second conical recess of the main body and all falls into the fifth hole and the third annular groove. At this time, the second floating steel ball disengages from the first conical recess and the second conical recess, canceling the rotation restriction of the rotating handle. After the restriction on the rotating handle is lifted, the rotating handle can be rotated to achieve unlocking, avoiding the situation where the second restriction component is accidentally touched or the rotating handle is accidentally rotated to unlock, thereby forming insurance in the installation stage and the unlocking stage respectively, realizing a double insurance function.

[0018] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a perspective view of a preferred embodiment of the present invention as a whole; Figure 2 is a perspective view of a preferred embodiment of the subject of the present invention; Figure 3 is a cross-sectional view of a preferred embodiment of the subject of the present invention Figure 1 ; Figure 4 is a cross-sectional view of a preferred embodiment of the subject of the present invention Figure 2 ; Figure 5 is a perspective view of a preferred embodiment of the first restraining assembly and the locking rod of the present invention; Figure 6 is a perspective view of a preferred embodiment of a rotating handle and a locking lever of the present invention; Figure 7 is a front view of a preferred embodiment of the rotating handle and locking rod of the present invention; Figure 8 is an exploded view of a preferred embodiment of the present invention as a whole; Figure 9 is a cross-sectional view of a preferred embodiment of the rotating handle of the present invention Figure 1 ; Figure 10 is a cross-sectional view of a preferred embodiment of the rotating handle of the present invention Figure 2 .

[0022] In the picture: Main body 1, first hole 101, second hole 102, first threaded portion 1021, third hole 103, rotating handle avoidance portion 104, first tapered recess 105, second tapered recess 106; Locking rod 2, first annular groove 201, conical downward pressing surface 202, conical upward pushing surface 203, conical limiting surface 204; The first limiting component 3, the first floating steel ball 301, the first trigger rod 302, the second annular groove 3021, the first limiting sliding portion 3022, the first limiting ring 303, and the first spring 304; Rotating handle 4, downward pressing plane 401, upward pushing plane 402, arc-shaped limiting surface 403, fourth hole 404, second threaded portion 4041, fifth hole 405; The second limiting assembly 5, the second floating steel ball 501, the second trigger rod 502, the third annular groove 5021, the second limiting sliding portion 5022, the second limiting ring 503, and the second spring 504; T-shaped rotating shaft 6 and bolt 7. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. Example 1

[0024] like Figures 1 to 10 As shown, this embodiment provides a locking mechanism with dual safety functions, including: A main body 1 and a locking rod 2 slidably connected to the main body 1; a first limiting component 3, arranged in the main body 1, for limiting the movement of the locking rod 2; a rotating handle 4, rotatably connected to the main body 1, and its side is linked to the locking rod 2; wherein the rotating handle 4 is suitable for driving the locking rod 2 to move up and down when rotating; a second limiting component 5, arranged in the rotating handle 4, for limiting the rotation of the rotating handle 4.

[0025] In this embodiment, a first limiting component 3 is provided to detect whether the modular component is installed in place. If not, the locking rod 2 cannot move; otherwise, it can move, thereby avoiding failure to lock the modular component that is installed in place. Unlocking is achieved by the cooperation of the second limiting component 5 and the rotating handle 4, thereby avoiding the situation where unlocking can be achieved by accidentally touching the second limiting component 5 or accidentally rotating the rotating handle 4, thereby achieving the dual insurance function of installation insurance and unlocking insurance.

[0026] A first hole 101 and a second hole 102 are provided on the top of the main body 1; the locking rod 2 is placed in the first hole 101 and is slidably connected to the first hole 101; a third hole 103 is provided on the side of the main body 1 and is connected to the first hole 101 and the second hole 102; the first limiting component 3 includes: a first floating steel ball 301 arranged in the third hole 103; wherein the first floating steel ball 301 is located between the first hole 101 and the second hole 102; and when the first floating steel ball 301 is located in the third hole 103 and the first hole 101, the movement of the locking rod 2 is restricted; when the first floating steel ball 301 is located in the third hole 103 and the second hole 102, the restriction on the movement of the locking rod 2 is released.

[0027] The locking rod 2 is provided with a first annular groove 201; the first limiting assembly 3 also includes: a first trigger rod 302 arranged in the second hole 102; wherein the first trigger rod 302 is slidably connected to the second hole 102; and the first trigger rod 302 is provided with a second annular groove 3021; when the first floating steel ball 301 is located in the third hole 103 and the first annular groove 201, the movement of the locking rod 2 is restricted; when the first floating steel ball 301 is located in the third hole 103 and the second annular groove 3021, the restriction on the movement of the locking rod 2 is cancelled; wherein the first annular groove 201 is provided to accommodate the first floating steel ball 301, so as to realize the restriction on the movement of the locking rod 2; wherein the second annular groove 3021 is provided to accommodate the first floating steel ball 301, so as to realize the cancellation of the restriction on the movement of the locking rod 2.

[0028] The upper part of the second hole 102 is provided with a first threaded portion 1021; the upper part of the first trigger rod 302 is provided with a first limiting sliding portion 3022; the first limiting assembly 3 also includes: a first limiting ring 303 sleeved on the first limiting sliding portion 3022 and a first spring 304 arranged in the second hole 102; wherein the first limiting sliding portion 3022 is slidably connected to the first limiting ring 303; the outer portion of the first limiting ring 303 is threadedly connected to the first threaded portion 1021; the two ends of the first spring 304 are respectively in contact with the bottom of the first trigger rod 302 and the bottom of the second hole 102; wherein the first spring 304 is provided, so as to achieve the effect of automatically returning the first trigger rod 302 after moving; wherein the first limiting ring 303 is provided, so as to achieve the effect of limiting the movement of the first trigger rod 302, thereby preventing the first trigger rod 302 from flying out of the second hole 102 under the action of the first spring 304.

[0029] In this embodiment, in the initial state, the first spring 304 of the first limiting assembly 3 pushes up the first trigger rod 302 to protrude from the surface of the main body 1. At this time, the first floating steel ball 301 is located in the first annular groove 201 and the third hole 103 of the locking rod 2, and restricts the movement of the locking rod 2. When the modular assembly is not installed in place, the first floating steel ball 301 clamps the locking rod 2, preventing it from moving (i.e., it cannot be locked by turning the handle 4); when the modular assembly is installed in place, the first trigger rod 302 is completely pressed into the second hole 102 of the main body 1 and compresses the first spring 304. At this time, the second annular groove 3021 is flush with the third hole 103. When the locking rod 2 moves upward, the first floating steel ball 301 is pushed into the third hole 103 and the second annular groove 3021 to release the restriction on the locking rod 2 and allow it to move, thereby avoiding the risk of locking when not installed in place.

[0030] The side of the main body 1 is provided with a rotating handle avoidance portion 104 connected to the first hole 101; wherein the rotating handle avoidance portion 104 is suitable for avoiding the rotating handle 4 so that the rotating handle 4 can be linked with the locking rod 2; the locking rod 2 is provided with a conical downward pressure surface 202 and a conical upward push surface 203; the side of the rotating handle 4 is provided with a downward pressure plane 401 and an upward push plane 402; the rotating handle 4 is suitable for the upward push plane 402 to contact with the conical upward push surface 203 when rotating clockwise to push the locking rod 2 to move upward in the first hole 101; the rotating handle 4 is suitable for the downward pressure plane 401 to contact with the conical downward pressure surface 202 when rotating counterclockwise to press the locking rod 2 downward in the first hole 101.

[0031] The locking rod 2 is provided with a conical limiting surface 204; the side of the rotating handle 4 is provided with an arc-shaped limiting surface 403; when the rotating handle 4 is rotated clockwise to the limit, the arc-shaped limiting surface 403 contacts the conical upper push surface 203 and the conical limiting surface 204 to limit the up and down movement of the locking rod 2.

[0032] A T-shaped rotating shaft 6 is provided on the main body 1; the T-shaped rotating shaft 6 passes through the main body 1 and is rotatably connected to the main body 1; the rotating handle 4 is sleeved on the T-shaped rotating shaft 6; a bolt 7 is threadedly connected to one end of the T-shaped rotating shaft 6; the bolt 7 is suitable for limiting the rotating handle 4; the rotating handle 4 and the T-shaped rotating shaft 6 are connected by a key or fixed connection, but not limited to, to ensure that when the rotating handle 4 rotates, the T-shaped rotating shaft 6 also rotates.

[0033] The main body 1 is provided with a first conical recess 105 and a second conical recess 106; the rotating handle 4 is provided with a fourth hole 404 and a fifth hole 405; wherein the fourth hole 404 is connected to the fifth hole 405; the second limiting component 5 includes: a second floating steel ball 501 arranged in the fifth hole 405; wherein when the second floating steel ball 501 is located in the fifth hole 405 and the first conical recess 105 or the second conical recess 106, the rotation of the rotating handle 4 is restricted; and when the second floating steel ball 501 is located in the fourth hole 404 and the fifth hole 405, the rotation restriction of the rotating handle 4 is cancelled; wherein the first conical recess 105 and the second conical recess 106 are located on the rotation path corresponding to the fifth hole 405; wherein the first conical recess 105 corresponds to the head end of the rotation path, and the second conical recess 106 corresponds to the end end of the rotation path.

[0034] The second limiting assembly 5 also includes: a second trigger rod 502 arranged in the fourth hole 404; wherein the second trigger rod 502 is slidably connected to the fourth hole 404; a third annular groove 5021 is provided on the second trigger rod 502; and when the second floating steel ball 501 is located in the fifth hole 405 and the third annular groove 5021, the rotation restriction of the rotating handle 4 is cancelled; wherein the second limiting assembly 5 has the same structure as the first limiting assembly 3, and the functions of each component refer to the first limiting assembly 5, which will not be repeated here.

[0035] A second threaded portion 4041 is provided on the upper portion of the fourth hole 404; a second limiting sliding portion 5022 is provided on the upper portion of the second trigger rod 502; the second limiting assembly 5 also includes: a second limiting ring 503 sleeved on the second limiting sliding portion 5022 and a second spring 504 arranged in the fourth hole 404; wherein the second limiting sliding portion 5022 is slidably connected to the second limiting ring 503; the outer portion of the second limiting ring 503 is threadedly connected to the second threaded portion 4041; the two ends of the second spring 504 are respectively in contact with the bottom of the second trigger rod 502 and the bottom of the fourth hole 404; wherein the second limiting assembly 5 has the same structure as the first limiting assembly 3, and the functions of each component refer to the first limiting assembly 5, which will not be repeated here.

[0036] When the second trigger rod 502 is required to rotate, the second spring 504 is compressed, and the second trigger rod 502 slides in the fourth hole 404. When the second trigger rod 502 moves downward, the third annular groove 5021 gradually aligns with the position of the fifth hole 405, and the second floating steel ball 501 can enter the third annular groove 5021. Under the pressure of the rotating handle 4, the second floating steel ball 501 exits from the first conical recess 105 or the second conical recess 106 of the main body 1 and falls into the fifth hole 405 and the third annular groove 5021. At this time, the second floating steel ball 501 is separated from the first conical recess 105 and the second conical recess 106, and the rotation restriction of the rotating handle 4 is cancelled. After the restriction on the rotating handle 4 is released, the rotating handle 4 can be rotated to realize unlocking, avoiding the situation where the second limiting component 5 is accidentally touched or the rotating handle 4 is accidentally rotated to unlock, thereby forming safety in the installation stage and the unlocking stage respectively, realizing a double safety function.

[0037] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0038] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A locking mechanism with dual insurance functions, characterized in that: include: A main body (1) and a locking rod (2) slidably connected to the main body (1); A first limiting component (3) is arranged in the main body (1) and is used to limit the movement of the locking rod (2); The rotating handle (4) is rotatably connected to the main body (1), and its side is linked to the locking rod (2); wherein The rotating handle (4) is suitable for driving the locking rod (2) to move up and down when rotating; The second limiting component (5) is arranged in the rotating handle (4) and is used to limit the rotation of the rotating handle (4).

2. The locking mechanism with dual safety function according to claim 1, characterized in that: The top of the main body (1) is provided with a first hole (101) and a second hole (102); The locking rod (2) is placed in the first hole (101) and is slidably connected to the first hole (101); A third hole (103) communicating with the first hole (101) and the second hole (102) is provided on the side surface of the main body (1); The first limiting component (3) comprises: a first floating steel ball (301) arranged in the third hole (103); The first floating steel ball (301) is located between the first hole (101) and the second hole (102); and When the first floating steel ball (301) is located in the third hole (103) and the first hole (101), the lock rod (2) is restricted from moving; When the first floating steel ball (301) is located in the third hole (103) and the second hole (102), the restriction on the movement of the locking rod (2) is cancelled.

3. The locking mechanism with dual safety function according to claim 2, characterized in that: The locking rod (2) is provided with a first annular groove (201); The first limiting assembly (3) further comprises: a first trigger rod (302) disposed in the second hole (102); wherein The first trigger rod (302) is slidably connected to the second hole (102); and A second annular groove (3021) is provided on the first trigger rod (302); When the first floating steel ball (301) is located in the third hole (103) and the first annular groove (201), the lock rod (2) is restricted from moving; When the first floating steel ball (301) is located in the third hole (103) and the second annular groove (3021), the restriction on the movement of the locking rod (2) is cancelled.

4. The locking mechanism with dual safety function according to claim 3, characterized in that: A first threaded portion (1021) is provided on the upper portion of the second hole (102); A first position-limiting sliding portion (3022) is provided on the upper portion of the first trigger rod (302); The first limiting assembly (3) further comprises: a first limiting ring (303) sleeved on the first limiting sliding portion (3022) and a first spring (304) arranged in the second hole (102); wherein The first limiting sliding portion (3022) is slidably connected to the first limiting ring (303); The exterior of the first limiting ring (303) is threadedly connected to the first threaded portion (1021); The two ends of the first spring (304) are in contact with the bottom of the first trigger rod (302) and the bottom of the second hole (102) respectively.

5. The locking mechanism with dual safety function according to claim 4, characterized in that: The side surface of the main body (1) is provided with a rotating handle avoidance portion (104) communicating with the first hole (101); wherein The rotating handle avoidance portion (104) is suitable for avoiding the rotating handle (4) so that the rotating handle (4) can be linked with the locking rod (2); The locking rod (2) is provided with a conical downward pressing surface (202) and a conical upward pushing surface (203); The side surface of the rotating handle (4) is provided with a downward pressing plane (401) and an upward pushing plane (402); The rotating handle (4) is adapted to contact the upward pushing plane (402) with the conical upward pushing surface (203) when rotating clockwise, so as to push the locking rod (2) upward in the first hole (101); The rotating handle (4) is adapted to contact the downward pressing plane (401) with the conical downward pressing surface (202) when rotating counterclockwise, thereby pressing the locking rod (2) downward in the first hole (101).

6. The locking mechanism with dual safety function according to claim 5, characterized in that: The locking rod (2) is provided with a conical limiting surface (204); The side surface of the rotating handle (4) is provided with an arc-shaped limiting surface (403); When the rotating handle (4) is rotated clockwise to the limit, the arc-shaped limiting surface (403) contacts the conical upward pushing surface (203) and the conical limiting surface (204) to limit the upward and downward movement of the locking rod (2).

7. The locking mechanism with dual safety function according to claim 6, characterized in that: The main body (1) is provided with a T-shaped rotating shaft (6); The T-shaped rotating shaft (6) passes through the main body (1) and is rotatably connected to the main body (1); The rotating handle (4) is sleeved on the T-shaped rotating shaft (6); One end of the T-shaped rotating shaft (6) is threadedly connected to a bolt (7); wherein The bolt (7) is suitable for limiting the rotation of the handle (4).

8. The locking mechanism with dual safety function according to claim 7, characterized in that: The main body (1) is provided with a first conical recess (105) and a second conical recess (106); The rotating handle (4) is provided with a fourth hole (404) and a fifth hole (405); wherein The fourth hole (404) is connected to the fifth hole (405); The second limiting component (5) comprises: a second floating steel ball (501) arranged in the fifth hole (405); wherein When the second floating steel ball (501) is located in the fifth hole (405) and the first conical recess (105) or the second conical recess (106), the rotation of the rotary handle (4) is restricted; and When the second floating steel ball (501) is located in the fourth hole (404) and the fifth hole (405), the restriction on the rotation of the rotation handle (4) is cancelled.

9. The locking mechanism with dual safety function according to claim 8, characterized in that: The second limiting assembly (5) further includes: a second trigger rod (502) disposed in the fourth hole (404); wherein The second trigger rod (502) is slidably connected to the fourth hole (404); A third annular groove (5021) is provided on the second trigger rod (502); and When the second floating steel ball (501) is located in the fifth hole (405) and the third annular groove (5021), the restriction on the rotation of the rotating handle (4) is cancelled.

10. The locking mechanism with dual safety function according to claim 9, characterized in that: A second threaded portion (4041) is provided on the upper portion of the fourth hole (404); A second limiting sliding portion (5022) is provided on the upper portion of the second trigger rod (502); The second limiting assembly (5) further comprises: a second limiting ring (503) sleeved on the second limiting sliding portion (5022) and a second spring (504) arranged in the fourth hole (404); wherein The second limiting sliding portion (5022) is slidably connected to the second limiting ring (503); The exterior of the second limiting ring (503) is threadedly connected to the second threaded portion (4041); The two ends of the second spring (504) are in contact with the bottom of the second trigger rod (502) and the bottom of the fourth hole (404) respectively.

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