Locking device suitable for connecting structure

Abstract

The invention discloses a locking device suitable for a connecting structure, which comprises a first connecting mechanism, a second connecting mechanism and a triggering mechanism, and is characterized in that the first connecting mechanism comprises a first locking element; the second connecting mechanism comprises a second connecting body and a second locking element, and the second locking element is connected with the second connecting body in a sliding mode so that the second locking element can be connected with the first locking element in an inserted mode; the triggering mechanism can drive the second locking element to reciprocate. When the first connecting mechanism and the second connecting mechanism are connected in the second direction, the triggering mechanism can drive the second locking element to move, so that the second locking element slides relative to the second connecting body, the second locking element and the first locking element are connected in an inserted mode, and the inserted connection direction of the second locking element and the second locking element is the first direction. The first direction does not coincide with the second direction, so that the first connecting mechanism and the second connecting mechanism are connected and locked, and the stability of the whole structure after the first connecting mechanism and the second connecting mechanism are connected is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting mechanisms and their supporting facilities, and in particular to a locking device suitable for connecting structures. Background Art

[0002] Detachable structures are structures that we often use in our daily production and life, such as adding supporting parts to production equipment to meet various production needs, installing shelves on bicycles to increase storage space, etc.

[0003] Conventional bicycle racks often use screws or clamps to secure loads. Removing loads often requires additional tools, making installation and removal cumbersome. Furthermore, adding components or other features can make the overall structure unstable. Therefore, a locking mechanism is urgently needed to enhance the stability of the added structure. Summary of the Invention

[0004] The object of the present invention is to provide a locking device suitable for a connection structure to solve the problems existing in the above-mentioned prior art, to enhance the overall structural stability of the connection structure, and to improve the reliability of the mechanism connection.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a locking device suitable for a connection structure, comprising:

[0007] a first connection mechanism comprising a first locking element;

[0008] a second connecting mechanism, the second connecting mechanism being detachably connected to the first connecting mechanism, the second connecting mechanism comprising a second connecting body and a second locking element, the second locking element being slidably connected to the second connecting body so as to enable the second locking element to be plugged into the first locking element; and a plugging direction of the second locking element into the first locking element being a first direction, a connecting direction of the second connecting mechanism into the first connecting mechanism being a second direction, the first direction and the second direction not overlapping;

[0009] A trigger mechanism is provided, wherein the trigger mechanism can drive the second locking element to reciprocate.

[0010] Preferably, the first locking element has an inserting hole, the second locking element is a columnar structure adapted to the inserting hole, and the second locking element can extend into the inserting hole to achieve insert connection between the first locking element and the second locking element.

[0011] Preferably, an elastic element is provided between the second locking element and the second connecting body. Under the action of the elastic force of the elastic element to restore the deformation, the second locking element protrudes from the second connecting body so that the second locking element can be plugged into the first locking element; the trigger mechanism can drive the second locking element to slide and compress the elastic element so that the second locking element is disengaged from the first locking element.

[0012] Preferably, the second locking element has a positioning hole, one end of the elastic element extends into the positioning hole, and the other end abuts against the second connecting body;

[0013] The first locking element has a guiding inclined surface, and along the relative sliding direction of the first locking element and the second locking element, the guiding inclined surface is inclined from top to bottom toward the plug hole.

[0014] Preferably, the trigger mechanism includes a trigger push block, which is slidably connected to the second connecting body. The trigger push block has a trigger structure adapted to the second locking element. The trigger structure is an inclined structure, and the trigger structure is located on the side of the second connecting body away from the first connecting mechanism. The reciprocating sliding of the trigger push block can push the second locking element to realize the reciprocating sliding of the second locking element relative to the second connecting body.

[0015] Preferably, the trigger push block has a mounting hole, the second locking element includes a second locking body and a second locking shaft, the second locking body is slidably disposed in the mounting hole, the mounting hole is an elongated hole, the trigger structure is tilted along the length direction of the mounting hole, and the second locking shaft slides against the trigger structure;

[0016] There are two groups of the trigger structures and the second locking shafts. The second locking shafts are symmetrically arranged with the axis of the second locking body as the symmetry axis. The trigger structures correspond to the second locking shafts one by one.

[0017] Preferably, the second connecting body has a triggering groove adapted to the triggering push block, the triggering push block is slidably disposed in the triggering groove, and a through hole is provided on a side wall of the triggering groove for allowing the second locking element to extend out.

[0018] Preferably, the trigger mechanism further includes a trigger handwheel, which is rotatably connected to the second connecting body and is transmission-connected to the trigger push block, and the trigger handwheel can drive the trigger push block to slide back and forth.

[0019] Preferably, the trigger handwheel has an eccentric shaft, the trigger push block has a connecting hole adapted to the eccentric shaft, the connecting hole is a long hole, the eccentric shaft is slidably disposed in the connecting hole, and the rotation axis of the trigger handwheel is perpendicular to the sliding direction of the trigger push block.

[0020] Preferably, the first locking elements and the second locking elements are both in multiple groups, and the two correspond one to one.

[0021] Compared with the prior art, the present invention has achieved the following technical effects: the locking device of the present invention is suitable for a connecting structure, including a first connecting mechanism, a second connecting mechanism and a trigger mechanism, the first connecting mechanism including a first locking element; the second connecting mechanism is detachably connected to the first connecting mechanism, the second connecting mechanism including a second connecting body and a second locking element, the second locking element being slidably connected to the second connecting body so that the second locking element can be plugged into the first locking element; and the plugging direction of the second locking element and the first locking element is a first direction, the connection direction of the second connecting mechanism and the first connecting mechanism is a second direction, and the first direction and the second direction do not overlap; the trigger mechanism can drive the second locking element to reciprocate.

[0022] The locking device of the present invention is suitable for a connecting structure, and the first connecting mechanism and the second connecting mechanism are detachably connected. When the first connecting mechanism and the second connecting mechanism are connected along the second direction, the trigger mechanism can drive the second locking element to move, so that the second locking element slides relative to the second connecting body, so that the second locking element is plugged into and connected to the first locking element. The plugging direction of the second locking element and the second locking element is the first direction, and the first direction and the second direction do not coincide, thereby realizing the connection locking of the first connecting mechanism and the second connecting mechanism, improving the stability of the overall structure after the connection between the two, and ensuring the connection reliability of the first connecting mechanism and the second connecting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a locking device applicable to a connection structure disclosed in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of a portion of the structure of a locking device applicable to a connection structure disclosed in an embodiment of the present invention;

[0026] Figure 3A cross-sectional view of a portion of the structure of a locking device applicable to a connection structure disclosed in an embodiment of the present invention;

[0027] Figure 4 A schematic structural diagram of a trigger push block and a second locking element of a locking device applicable to a connection structure disclosed in an embodiment of the present invention;

[0028] Figure 5 A schematic structural diagram of a trigger push block and a second locking element of a locking device for a connection structure disclosed in an embodiment of the present invention from other perspectives;

[0029] Figure 6 A schematic structural diagram of a connecting column applicable to a connecting structure disclosed in an embodiment of the present invention;

[0030] Figure 7 A cross-sectional view of a connecting column and a second locking element applicable to a connecting structure disclosed in an embodiment of the present invention;

[0031] Figure 8 This is a partial structural diagram of a first connecting mechanism applicable to a connecting structure disclosed in an embodiment of the present invention.

[0032] In the figure: 1. First connecting mechanism; 2. Second connecting mechanism; 3. Second locking element; 4. Elastic element; 5. Trigger push block; 6. Trigger structure; 7. Mounting hole; 8. Second locking body; 9. Second locking shaft; 10. Trigger slot; 11. Trigger handwheel; 12. Connecting hole; 13. Positioning hole; 14. Connecting column; 15. Fixing pin; 16. Plug hole; 17. Guide slope. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] The object of the present invention is to provide a locking device suitable for a connection structure to solve the problems existing in the above-mentioned prior art, to enhance the overall structural stability of the connection structure, and to improve the reliability of the mechanism connection.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The present invention provides a locking device suitable for a connection structure, including a first connection mechanism 1, a second connection mechanism 2 and a trigger mechanism, the first connection mechanism 1 including a first locking element; the second connection mechanism 2 is detachably connected to the first connection mechanism 1, the second connection mechanism 2 including a second connection body and a second locking element 3, the second locking element 3 is slidably connected to the second connection body so that the second locking element 3 can be plugged into the first locking element; and the plugging direction of the second locking element 3 and the first locking element is a first direction, the connection direction of the second connection mechanism 2 and the first connection mechanism 1 is a second direction, and the first direction and the second direction do not overlap; the trigger mechanism can drive the second locking element 3 to reciprocate.

[0037] The locking device of the present invention is suitable for a connecting structure, and the first connecting mechanism 1 and the second connecting mechanism 2 are detachably connected. When the first connecting mechanism 1 and the second connecting mechanism 2 are connected along the second direction, the trigger mechanism can drive the second locking element 3 to move, so that the second locking element 3 slides relative to the second connecting body, so that the second locking element 3 is plugged and connected with the first locking element. The plugging direction of the second locking element 3 and the second locking element 3 is the first direction, and the first direction and the second direction do not coincide, thereby realizing the connection locking of the first connecting mechanism 1 and the second connecting mechanism 2, improving the stability of the overall structure after the connection between the two, and ensuring the connection reliability of the first connecting mechanism 1 and the second connecting mechanism 2.

[0038] The first locking element has an insertion hole 16, and the second locking element 3 is a columnar structure adapted to the insertion hole 16. The second locking element 3 can extend into the insertion hole 16 to achieve plug-in connection between the first locking element and the second locking element 3, thereby achieving the connection and locking between the first connecting mechanism 1 and the second connecting mechanism 2. The present invention adopts a plug-in locking method with a simple structure and reliable locking. In this specific embodiment, the first connecting mechanism 1 and the second connecting mechanism 2 are slidably connected, with the first direction being perpendicular to the second direction. When sliding to the locked position, the first locking element and the second locking element 3 are plugged together to achieve the connection and locking, thereby improving the stability of the overall structure after the connection.

[0039] In order to enable the second locking element 3 to smoothly extend into the plug-in hole 16 and be plugged and connected with the first locking element, an elastic element 4 is provided between the second locking element 3 and the second connecting body. Under the action of the elastic force of the elastic element 4 to restore the deformation, the second locking element 3 protrudes from the second connecting body so that the second locking element 3 can be plugged with the first locking element, thereby ensuring the locking reliability; the trigger mechanism can drive the second locking element 3 to slide and compress the elastic element 4 to disengage the second locking element 3 from the first locking element. When locking is required, the trigger mechanism drives the second locking element 3 to move in the opposite direction. Under the action of the force of the elastic element 4 to restore the deformation, the second locking element 3 is quickly extended and plugged with the first locking element, thereby achieving rapid locking while ensuring reliable locking.

[0040] In other specific embodiments of the present invention, the elastic element 4 can be a spring, which is inexpensive, reliable, and easy to replace. To prevent misalignment of the elastic element 4, the second locking element 3 has a positioning hole 13. One end of the elastic element 4 extends into the positioning hole 13, and the other end abuts against the second connecting body, ensuring the stability and reliability of the elastic element 4. Other types of elastic element 4 can also be selected according to actual working conditions to meet different locking requirements.

[0041] In other specific embodiments that can be realized by the present invention, the second connecting body is provided with a connecting column 14, and the second locking element 3 has a sliding groove that is adapted to the connecting column 14. The second locking element 3 can be slidably mounted on the connecting column 14. The provision of the connecting column 14 facilitates the installation and positioning of the second locking element 3. In addition, the elastic element 4 can be arranged in the sliding groove. In this case, the sliding groove forms a positioning hole 13 to provide installation and positioning for the elastic element 4. In order to prevent the second locking element 3 and the connecting column 14 from rotating relative to each other and causing misalignment, the connecting column 14 can be provided with a prismatic or special-shaped columnar structure, see for details. Figure 6 , improve the accuracy of the axial reciprocating motion of the second locking element 3 along the connecting column 14. It should also be noted that, in actual application, the connecting column 14 and the second connecting body can be set as a split structure, and the connecting column 14 is fixed to the second connecting body using a fixing pin 15, such as Figure 7 As shown, the split structure facilitates the transportation of the second connecting body and can also save production costs.

[0042] In other specific embodiments that can be realized by the present invention, the first locking element has a guide bevel 17, and along the relative sliding direction of the first locking element and the second locking element 3, the guide bevel 17 is inclined from top to bottom toward the direction of the plug hole 16, and along the sliding connection direction of the first connecting mechanism 1 relative to the second connecting mechanism 2, the guide bevel 17 is located in front of the plug hole 16, see Figure 8The second locking element 3 protrudes from the second connecting body. During the sliding connection of the first connecting mechanism 1 relative to the second connecting mechanism 2, when the first connecting mechanism 1 slides along the second connecting mechanism 2 until the guide slope 17 contacts the second locking element 3, as the first connecting mechanism 1 slides, the second locking element 3 gradually slides downward under the pushing action of the first connecting mechanism 1 and the guiding action of the guide slope 17, compressing the elastic element 4 until it moves to the plug hole 16. After losing the restriction of the guide slope 17, the second locking element 3 slides upward and protrudes from the second connecting body under the action of the elastic element 4 to restore its deformation, and extends into the plug hole 16, thereby achieving locking of the first connecting mechanism 1 and the second connecting mechanism 2.

[0043] Specifically, the trigger mechanism includes a trigger push block 5, which is slidably connected to the second connecting body. The trigger push block 5 has a trigger structure 6 that is adapted to the second locking element 3. The trigger structure 6 is an inclined structure and is located on the side of the second connecting body away from the first connecting mechanism 1. The reciprocating sliding of the trigger push block 5 can push the second locking element 3 to achieve reciprocating sliding of the second locking element 3 relative to the second connecting body. Please refer to Figure 4 and Figure 5 The trigger push block 5 slides back and forth horizontally, and the trigger structure 6 pushes the second locking element 3, causing the second locking element 3 to reciprocate vertically. In this embodiment, the second locking element 3 abuts the trigger structure 6, and an elastic element 4 is provided on the second locking element 3. Under the elastic force of the elastic element 4, the second locking element 3 can be smoothly extended. In other embodiments of the present invention, the second locking element 3 can be slidably connected to the trigger structure 6, for example, by providing a dovetail groove and a slider therebetween. When the trigger push block 5 drives the trigger structure 6 to slide back and forth, the trigger structure 6 drives the second locking element 3 to reciprocate vertically. It should be explained here that the initial state of the second locking element 3 can be set according to actual conditions, so that during the sliding connection between the first connecting mechanism 1 and the second connecting mechanism 2, the second locking element 3 is pushed back (the second locking element 3 is initially protruding from the second connecting body). After the first connecting mechanism 1 and the second connecting mechanism 2 are slidably connected in place, the second locking element 3 is ejected and locked. Alternatively, the initial state of the second locking element 3 is set to a retracted state (the second locking element 3 is flush with the second connecting body). After the first connecting mechanism 1 and the second connecting mechanism 2 are slidably connected, the trigger 5 drives the second locking element 3 to pop out in conjunction with the elastic element 4 to achieve locking. In actual application, the state of the second locking element 3 can be adjusted according to specific working conditions to meet different operational requirements and improve the flexibility and adaptability of the device.

[0044] In other embodiments of the present invention, the trigger block 5 has a mounting hole 7, and the second locking element 3 includes a second locking body 8 and a second locking shaft 9. The second locking body 8 is slidably disposed within the mounting hole 7, which is an elongated hole. The trigger structure 6 is tilted along the length of the mounting hole 7, and the second locking shaft 9 slides against the trigger structure 6. The tilted trigger structure 6 allows the trigger block 5 and the second locking element 3 to move horizontally relative to each other as the trigger block 5 slides horizontally relative to the second connecting body. The mounting hole 7 allows the trigger block 5 and the second locking element 3 to move horizontally relative to each other, while limiting the extreme movement of the trigger block 5 and the second locking element 3, further improving the reliability of the locking device. In this embodiment, the second locking body 8 can be cylindrical. In actual applications, the second locking body 8 can also be prismatic to accommodate different working conditions and enhance the flexibility of the device. In addition, the second locking element 3 uses the second locking shaft 9 to counteract the trigger structure 6, allowing the trigger block 5 to apply a thrust to the second locking element 3 via the second locking shaft 9, driving the second locking element 3 to slide.

[0045] In order to improve the force uniformity of the second locking element 3, the trigger structure 6 and the second locking shaft 9 are both in two groups. The second locking shaft 9 is symmetrically arranged with the axis of the second locking body 8 as the symmetry axis, and the trigger structure 6 and the second locking shaft 9 correspond one to one.

[0046] More specifically, the second connecting body has a trigger groove 10 adapted to the trigger push block 5. The trigger push block 5 can be slidably arranged in the trigger groove 10 to limit the displacement of the trigger push block 5 in other directions, improve the movement reliability of the trigger push block 5, and avoid dislocation of the trigger push block 5. The side wall of the trigger groove 10 has a through hole allowing the second locking element 3 to extend out, so that the second locking element 3 can be smoothly extended and plugged with the first locking element to realize the connection and locking of the first connecting mechanism 1 and the second connecting mechanism 2.

[0047] In order to improve the convenience of operation, the trigger mechanism also includes a trigger handwheel 11, which is rotatably connected to the second connecting body and is transmission-connected to the trigger push block 5. The trigger handwheel 11 can drive the trigger push block 5 to slide back and forth. The trigger handwheel 11 is set on the second connecting body, and the trigger handwheel 11 is used to drive the trigger push block 5 to slide back and forth, thereby improving the convenience of operation. In actual application, a scale can also be set on the trigger handwheel 11 to improve the operation accuracy and further improve the locking reliability of the locking device. In addition, in order to further improve the locking safety, a password lock can be installed on the trigger handwheel 11. The password lock improves the operational safety of the trigger handwheel 11 and avoids misoperation. When the password is correct, the trigger handwheel 11 can be operated. When the password is incorrect, the trigger handwheel 11 cannot be operated, thereby improving the safety and reliability of the device.

[0048] In this specific embodiment, the trigger handwheel 11 has an eccentric shaft, and the trigger push block 5 has a connecting hole 12 that is compatible with the eccentric shaft. The connecting hole 12 is an elongated hole, and the eccentric shaft is slidably disposed in the connecting hole 12. The rotation axis of the trigger handwheel 11 is perpendicular to the sliding direction of the trigger push block 5. The trigger handwheel 11 rotates, thereby using the eccentric shaft to drive the trigger push block 5 to slide back and forth. Because the trigger groove 10 limits the displacement of the trigger push block 5 in other directions, the trigger push block 5 can only slide back and forth in a predetermined direction to complete locking and unlocking. The present invention uses the eccentric shaft to drive the trigger push block 5 to slide back and forth, which has a simple structure, stable transmission, and small space occupation. In other specific embodiments of the present invention, the trigger handwheel 11 can also use other transmission mechanisms to drive the trigger push block 5 to slide back and forth, such as a gear transmission structure or a chain transmission structure. In actual application, the appropriate transmission structure can be selected according to the actual working conditions to improve the flexibility and adaptability of the device.

[0049] It should also be noted here that the trigger handwheel 11 can be set to a split structure to facilitate the disassembly and assembly of the trigger handwheel 11. Part of the structure of the trigger handwheel 11 is set on the outside for easy operation, and part of the structure of the trigger handwheel 11 close to the trigger push block 5 is located inside the device to improve the aesthetics of the device and enhance the user experience.

[0050] In actual applications, the number of first locking elements and second locking elements 3 are multiple groups, and the two correspond one to one. Multiple groups of first locking elements and second locking elements 3 are set to improve the force uniformity of the first connecting mechanism 1 and the second connecting mechanism 2, and further improve the stability of the overall structure after connection. The trigger mechanism controls the simultaneous action of multiple groups of second locking elements 3, and the locking and unlocking operations are convenient and quick.

[0051] The locking device of the present invention is applicable to a connection structure. When the first connection mechanism 1 and the second connection mechanism 2 are connected in place and locking is required, the trigger handwheel 11 is rotated. The trigger handwheel 11 cooperates with the eccentric shaft and the connection hole 12 to drive the trigger push block 5 to slide. The inclined trigger structure 6 of the trigger push block 5 slides horizontally. The second locking element 3 moves upward under the elastic force of the elastic element 4, extends out of the second connection body, and extends into the insertion hole 16, thereby achieving plug-in connection between the first locking element and the second locking element 3, completing the locking of the first connection mechanism 1 and the second connection mechanism 2. When unlocking is required, the trigger handwheel 11 is rotated in the opposite direction, the trigger push block 5 moves in the opposite direction, and the inclined trigger structure 6 applies pressure to the second locking element 3, causing it to retract into the trigger groove 10, completing the unlocking of the first connection mechanism 1 and the second connection mechanism 2. The locking device of the present invention has a simple structure, is easy to operate, and greatly improves the stability of the overall structure after connection. When the locking device of the present invention is applicable to a connection structure and is applicable to a specific connection structure, the first connection mechanism 1 can be a specific connection object. For example, when the locking device of the present invention is applied to a bicycle rack, the second connection mechanism 2 can be fixed on the bicycle rack, and the first connection mechanism 1 can be a cargo basket, etc.

[0052] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A locking device suitable for a connection structure, characterized in that: include: a first connection mechanism comprising a first locking element; a second connecting mechanism, the second connecting mechanism being detachably connected to the first connecting mechanism, the second connecting mechanism comprising a second connecting body and a second locking element, the second locking element being slidably connected to the second connecting body so as to enable the second locking element to be plugged into the first locking element; Furthermore, the plugging direction of the second locking element and the first locking element is a first direction, the connecting direction of the second connecting mechanism and the first connecting mechanism is a second direction, and the first direction and the second direction do not overlap; A trigger mechanism is provided, wherein the trigger mechanism can drive the second locking element to reciprocate.

2. The locking device for a connection structure according to claim 1, characterized in that: The first locking element has an inserting hole, the second locking element is a columnar structure adapted to the inserting hole, and the second locking element can extend into the inserting hole to achieve inserting connection between the first locking element and the second locking element.

3. The locking device for a connection structure according to claim 2, characterized in that: An elastic element is provided between the second locking element and the second connecting body. Under the elastic force of the elastic element to restore deformation, the second locking element protrudes from the second connecting body so that the second locking element can be plugged into the first locking element. The trigger mechanism can drive the second locking element to slide and compress the elastic element, so that the second locking element is disengaged from the first locking element.

4. The locking device for a connection structure according to claim 3, characterized in that: The second locking element has a positioning hole, one end of the elastic element extends into the positioning hole, and the other end abuts against the second connecting body; The first locking element has a guiding inclined surface, and along the relative sliding direction of the first locking element and the second locking element, the guiding inclined surface is inclined from top to bottom toward the plug hole.

5. The locking device for a connection structure according to any one of claims 1 to 4, characterized in that: The trigger mechanism includes a trigger push block, which is slidably connected to the second connecting body. The trigger push block has a trigger structure adapted to the second locking element. The trigger structure is an inclined structure, and the trigger structure is located on the side of the second connecting body away from the first connecting mechanism. The reciprocating sliding of the trigger push block can push the second locking element to realize the reciprocating sliding of the second locking element relative to the second connecting body.

6. The locking device for a connection structure according to claim 5, characterized in that: The trigger push block has a mounting hole, the second locking element includes a second locking body and a second locking shaft, the second locking body is slidably disposed in the mounting hole, the mounting hole is a long hole, the trigger structure is tilted along the length direction of the mounting hole, and the second locking shaft slides against the trigger structure; There are two groups of the trigger structures and the second locking shafts. The second locking shafts are symmetrically arranged with the axis of the second locking body as the symmetry axis. The trigger structures correspond to the second locking shafts one by one.

7. The locking device for a connection structure according to claim 5, characterized in that: The second connecting body has a triggering groove adapted to the triggering push block, the triggering push block is slidably disposed in the triggering groove, and a through hole is provided on a side wall of the triggering groove for allowing the second locking element to extend out.

8. The locking device for a connection structure according to claim 5, characterized in that: The trigger mechanism further includes a trigger handwheel, which is rotatably connected to the second connecting body and is transmission-connected to the trigger push block. The trigger handwheel can drive the trigger push block to slide back and forth.

9. The locking device for a connection structure according to claim 8, characterized in that: The trigger handwheel has an eccentric shaft, and the trigger push block has a connecting hole adapted to the eccentric shaft. The connecting hole is a long hole, and the eccentric shaft is slidably arranged in the connecting hole. The rotation axis of the trigger handwheel is perpendicular to the sliding direction of the trigger push block.

10. The locking device for a connection structure according to claim 1, characterized in that: The number of the first locking elements and the number of the second locking elements are both multiple, and the two correspond one to one.

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