Bidirectional self-locking structure

Abstract

The invention belongs to the technical field of fasteners, and relates to a bidirectional self-locking structure which comprises a base, a self-locking plate mounted on the base, a chain wheel rotationally connected to the self-locking plate, a first self-locking assembly and a second self-locking assembly which are arranged between the self-locking plate and the chain wheel, and a switching piece rotationally connected to the self-locking plate. The first self-locking assembly enables the chain wheel to rotate only in the first direction, the second self-locking assembly enables the chain wheel to move only in the second direction, the first direction is opposite to the second direction, and a first position and a second position are arranged in the stroke range of the switching piece. When an object is subjected to downward or upward acting force, the switching piece can be rotated to achieve reverse self-locking, potential safety hazards are reduced, the object conveying direction can be rapidly switched by rotating the switching piece, bidirectional self-locking can be rapidly achieved, and applicability is high.

Description

Technical Field

[0001] The invention belongs to the technical field of fasteners and relates to a bidirectional self-locking structure. Background Art

[0002] In the process of transporting objects on an inclined plane, a one-way self-locking device is usually provided in the transmission structure. The one-way self-locking device can ensure that the transmission structure drives the object to move in a single transportation direction. For example, the object is only transported upward along the inclined plane, thereby preventing the object from sliding or falling when moving downward on the inclined plane, thereby ensuring the safety of the transportation process. The one-way self-locking device can ensure that the object is stably transported upward on the inclined plane, reducing transportation interruptions caused by sliding or falling of the object, helping to improve transportation efficiency and reduce transportation time and cost.

[0003] However, since it is not convenient to perform two-way self-locking on objects, it is difficult for objects to remain in place when subjected to external forces, which poses a potential safety risk and affects transportation efficiency. Summary of the invention

[0004] In response to the above-mentioned problems, the present invention provides a two-way self-locking structure. When an object is subjected to a downward or upward force, the switching member can be rotated to achieve reverse self-locking, thereby reducing safety hazards. The transportation direction of the object can be quickly switched by rotating the switching member, which is conducive to the rapid realization of two-way self-locking and has strong applicability.

[0005] According to the technical solution of the present invention: the present invention provides a bidirectional self-locking structure, comprising a base, a self-locking plate installed on the base, a sprocket rotatably connected to the self-locking plate, a first self-locking component and a second self-locking component arranged between the self-locking plate and the sprocket, and a switching member rotatably connected to the self-locking plate, wherein the first self-locking component enables the sprocket to rotate only in a first direction, and the second self-locking component enables the sprocket to move only in a second direction, the first direction and the second direction are opposite, and a first position and a second position are arranged within the travel range of the switching member; When the switching member rotates to the first position, the second self-locking component is unlocked, so that the sprocket can rotate in the second direction; When the switching member rotates to the second position, the first self-locking component is unlocked, so that the sprocket can rotate in the first direction.

[0006] The self-locking plate is connected to a self-locking disk, and a plurality of first self-locking grooves and second self-locking grooves arranged along the axial direction are arranged on the inner circumference of the self-locking disk, and the first self-locking groove and the second self-locking groove are in opposite directions, and the switching member is inserted into the self-locking disk; The output end of the first self-locking component abuts against the inner side wall of the first self-locking groove to limit the rotation of the sprocket along the second direction; the output end of the second self-locking component abuts against the inner side wall of the first self-locking groove to limit the rotation of the sprocket along the first direction.

[0007] As a further improvement of the present invention, the first self-locking assembly includes a first pillar connected to the self-locking plate, a first self-locking member hinged to the first pillar, and a first reset member, the first self-locking member is provided with a first locking portion, the first locking portion is inserted into one of the first self-locking grooves, and the first reset member is connected between the first pillar and the self-locking plate; When the sprocket rotates in the first direction, the first locking portion disengages from the first self-locking groove and the first reset member is compressed, and the first reset member drives the first locking portion to cooperate and insert into the next adjacent first self-locking groove.

[0008] As a further improvement of the present invention, the second self-locking assembly includes a second pillar connected to the self-locking plate, a second self-locking member hinged to the second pillar, and a second reset member, the second self-locking member is provided with a second locking portion, the second locking portion is inserted into one of the second self-locking grooves, and the second reset member is connected between the second pillar and the self-locking plate; When the sprocket rotates in the second direction, the second locking portion disengages from the second self-locking groove and the second reset member is compressed, and the second locking portion is driven to cooperate and insert into the next adjacent second self-locking groove under the action of the second reset member.

[0009] As a further improvement of the present invention, the self-locking plate is provided with a positioning groove, the first position and the second position are provided in the positioning groove, and the switching member is provided with a positioning portion, and the positioning portion is inserted into the positioning groove in cooperation; When the positioning portion is located at the first position, one end of the positioning portion abuts against the first self-locking member, so that the sprocket rotates along the first direction; When the positioning portion is located at the second position, the other end of the positioning portion abuts against the second self-locking member, so that the sprocket rotates along the second direction.

[0010] As a further improvement of the present invention, the self-locking disk includes a first ratchet disk installed on the self-locking plate and a second ratchet disk connected to the first ratchet disk, the first ratchet disk and the second ratchet disk are arranged in parallel, the first self-locking groove is arranged on the first ratchet disk, and the second self-locking groove is arranged on the second ratchet disk.

[0011] As a further improvement of the present invention, the switching member is connected to a rotating rod, one end of the rotating rod passes through the base, and a bearing is installed at the connection between the base and the rotating rod.

[0012] As a further improvement of the present invention, one end of the rotating rod is connected to a driving shaft, and the driving shaft is connected to a handle.

[0013] As a further improvement of the present invention, the handle is provided with an inserting interface, and the driving shaft is provided with an inserting portion, and the inserting portion cooperates with the inserting interface.

[0014] As a further improvement of the present invention, the self-locking disk is installed with a protective cover, and the switching member, the first self-locking component and the second self-locking component are located inside the protective cover.

[0015] The technical effect of the present invention is that the concept of the present invention is ingenious and reasonable. In actual application, when the switching member is rotated to the first position, the second self-locking component is unlocked, so that the sprocket can rotate in the second direction, and the sprocket can rotate in the opposite direction, which is conducive to transporting objects to lower places; when the switching member is rotated to the second position, the first self-locking component is unlocked, so that the sprocket can rotate in the first direction, which is convenient for smoothly transporting objects to higher places. When the object is subjected to downward or upward force, the switching member can be rotated to achieve reverse self-locking, reducing safety hazards. The transportation direction of the object can be quickly switched by rotating the switching member, and the object can be smoothly kept in place, which is conducive to quickly achieving two-way self-locking and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the self-locking disk.

[0018] Figure 3 It is a schematic diagram of the installation structure of the first self-locking component and the second self-locking component.

[0019] Figure 4 It is a structural schematic diagram of the self-locking plate.

[0020] Figure 5 Exploded view of the present invention with a protective cover installed. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. The described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] Figure 1-5It includes a base 1, a self-locking plate 2, a positioning groove 201, a sprocket 3, a first self-locking component 4, a first pillar 41, a first self-locking piece 42, a first locking portion 421, a first reset piece 43, a second self-locking component 5, a second pillar 51, a second self-locking piece 52, a second locking portion 521, a second reset piece 53, a switching piece 6, a positioning portion 61, a self-locking disk 7, a first ratchet disk 71, a second ratchet disk 72, a first self-locking groove 701, a second self-locking groove 702, a protective cover 73, a rotating rod 8, a driving shaft 81, a plug-in portion 811, a handle 82, and a plug interface 821.

[0024] like Figure 1-5 As shown, the present invention provides a bidirectional self-locking structure, including a base 1, a self-locking plate 2 installed on the base 1, a sprocket 3 rotatably connected to the self-locking plate 2, a first self-locking component 4 and a second self-locking component 5 arranged between the self-locking plate 2 and the sprocket 3, and a switching member 6 rotatably connected to the self-locking plate 2, the first self-locking component 4 makes the sprocket 3 rotate only in a first direction, the second self-locking component 5 makes the sprocket 3 move only in a second direction, the first direction and the second direction are opposite, and a first position and a second position are set within the travel range of the switching member 6.

[0025] In actual application, the base 1 is connected to related components so that the base 1 maintains a relatively fixed connection relationship with the ground, and is connected to the corresponding conveying chain through the sprocket 3, so as to smoothly drive the sprocket 3 to rotate, thereby smoothly driving the corresponding object to move; specifically, the first direction is an inclined plane upward, and when the switching member 6 is rotated to the first position, the second self-locking component 5 is unlocked, so that the sprocket 3 can rotate in the second direction, which can make the sprocket 3 rotate in the opposite direction, which is conducive to transporting the object to a lower place; when the switching member 6 is rotated to the second position, the first self-locking component 4 is unlocked, so that the sprocket 3 can rotate in the first direction, which is convenient for smoothly transporting the object to a higher place. When the object is subjected to downward or upward force, the switching member 6 can be rotated to achieve reverse self-locking, which can smoothly keep the object in place and reduce safety hazards. The transportation direction of the object can be quickly switched by rotating the switching member 6, which is conducive to quickly realizing two-way self-locking and has strong applicability.

[0026] like Figure 1 , 2 As shown, in the present embodiment, the self-locking plate 2 is connected to a self-locking disk 7, and a plurality of first self-locking grooves 701 and second self-locking grooves 702 arranged along the axial direction are arranged on the inner circumference of the self-locking disk 7, and the first self-locking grooves 701 and the second self-locking grooves 702 are oriented in opposite directions, and the switching member 6 is penetrated through the self-locking disk 7; the output end of the first self-locking component 4 abuts against the inner side wall of the first self-locking groove 701 to limit the rotation of the sprocket 3 along the second direction; the output end of the second self-locking component 5 abuts against the inner side wall of the first self-locking groove 701 to limit the rotation of the sprocket 3 along the first direction, thereby ensuring that the sprocket 3 can rotate smoothly in the first direction or the second direction.

[0027] like Figure 1 , 3 As shown, in the present embodiment, the first self-locking component 4 includes a first pillar 41 connected to the self-locking plate 2, a first self-locking member 42 and a first reset member 43 hinged to the first pillar 41, the first self-locking member 42 is provided with a first locking portion 421, the first locking portion 421 is inserted into one of the first self-locking grooves 701, and the first reset member 43 is connected between the first pillar 41 and the self-locking plate 2; in actual application, the first reset member 43 is a spring, and during the rotation of the sprocket 3 along the first direction, the first locking portion 421 disengages from the first self-locking groove 701 and causes the first reset member 43 to be compressed, and under the action of the first reset member 43, the first locking portion 421 is driven to cooperate and insert into the next adjacent first self-locking groove 701, thereby smoothly driving the object to move along the first direction.

[0028] like Figure 1 , 3 As shown, in the present embodiment, the second self-locking component 5 comprises a second pillar 51 connected to the self-locking plate 2, a second self-locking member 52 hinged to the second pillar 51 and a second reset member 53, the second self-locking member 52 is provided with a second locking portion 521, the second locking portion 521 is inserted into one of the second self-locking grooves 702, and the second reset member 53 is connected between the second pillar 51 and the self-locking plate 2; in actual application, the second reset member 53 is a spring, and when the sprocket 3 rotates along the second direction, the second locking portion 521 disengages from the second self-locking groove 702 and the second reset member 53 is compressed, and under the action of the second reset member 53, the second locking portion 521 is driven to cooperate and insert into the next adjacent second self-locking groove 702, thereby smoothly driving the object to move along the second direction.

[0029] like Figure 1 , 4 As shown, in the present embodiment, the self-locking plate 2 is provided with a positioning groove 201, the first position and the second position are arranged in the positioning groove 201, and the switching member 6 is provided with a positioning portion 61, and the positioning portion 61 is inserted into the positioning groove 201 in cooperation; when the positioning portion 61 is located at the first position, one end of the positioning portion 61 abuts against the first self-locking member 42, so that the sprocket 3 rotates along the first direction; when the positioning portion 61 is located at the second position, the other end of the positioning portion 61 abuts against the second self-locking member 52, so that the sprocket 3 rotates along the second direction, and by rotating the switching member 6, self-locking upward or downward can be smoothly realized, thereby meeting the requirement of self-locking of the object in both directions, and the applicability is strong.

[0030] like Figure 1 , 2As shown, in this embodiment, the self-locking disk 7 includes a first ratchet disk 71 installed on the self-locking plate 2 and a second ratchet disk 72 connected to the first ratchet disk 71, the first ratchet disk 71 and the second ratchet disk 72 are arranged in parallel, the first self-locking groove 701 is arranged on the first ratchet disk 71, and the second self-locking groove 702 is arranged on the second ratchet disk 72. When installing or disassembling the first ratchet disk 71, the first self-locking component 4 can be quickly installed or disassembled, and when installing or disassembling the second ratchet disk 72, the second self-locking component 5 can be quickly installed or disassembled, and the assembly and disassembly are convenient.

[0031] like Figure 5 As shown, in this embodiment, the switching member 6 is connected to a rotating rod 8, one end of the rotating rod 8 passes through the base 1, and a bearing is installed at the connection between the base 1 and the rotating rod 8 to ensure a stable connection between the rotating rod 8 and the base 1.

[0032] like Figure 1 , 5 As shown, in this embodiment, one end of the rotating rod 8 is connected to a driving shaft 81, and the driving shaft 81 is connected to a handle 82. The handle 82 extends the rotating force arm of the rotating rod 8, effectively improving the torque of the rotating rod 8, which is conducive to the smooth rotation of the switching member 6.

[0033] In this embodiment, the handle 82 is provided with an inserting port 821 , and the driving shaft 81 is provided with an inserting portion 811 . The inserting portion 811 cooperates with the inserting port 821 , so as to facilitate quick installation or removal of the handle 82 .

[0034] like Figure 1 , 5 As shown, in this embodiment, the self-locking disk 7 is installed with a protective cover 73, and the switching member 6, the first self-locking component 4 and the second self-locking component 5 are located on the inner side of the protective cover 73 to prevent dust from entering the interior of the self-locking disk 7, thereby facilitating the protection of the switching member 6, the first self-locking component 4 and the second self-locking component 5.

[0035] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A two-way self-locking structure, characterized in that: The invention comprises a base (1), a self-locking plate (2) mounted on the base (1), a sprocket (3) rotatably connected to the self-locking plate (2), a first self-locking component (4) and a second self-locking component (5) arranged between the self-locking plate (2) and the sprocket (3), and a switching member (6) rotatably connected to the self-locking plate (2), wherein the first self-locking component (4) enables the sprocket (3) to rotate only in a first direction, and the second self-locking component (5) enables the sprocket (3) to move only in a second direction, the first direction and the second direction being opposite, and a first position and a second position are arranged within the travel range of the switching member (6); When the switching member (6) rotates to the first position, the second self-locking component (5) is unlocked, so that the sprocket (3) can rotate in the second direction; When the switching member (6) rotates to the second position, the first self-locking component (4) is unlocked, so that the sprocket (3) can rotate in the first direction.

2. The two-way self-locking structure according to claim 1, characterized in that: The self-locking plate (2) is connected to a self-locking disk (7), and a plurality of first self-locking grooves (701) and second self-locking grooves (702) arranged along the axial direction are arranged on the inner circumference of the self-locking disk (7), and the first self-locking grooves (701) and the second self-locking grooves (702) are oriented in opposite directions, and the switching member (6) is inserted into the self-locking disk (7); The output end of the first self-locking component (4) abuts against the inner side wall of the first self-locking groove (701) to limit the rotation of the sprocket (3) along the second direction; the output end of the second self-locking component (5) abuts against the inner side wall of the first self-locking groove (701) to limit the rotation of the sprocket (3) along the first direction.

3. The two-way self-locking structure according to claim 2, characterized in that: The first self-locking component (4) comprises a first pillar (41) connected to the self-locking plate (2), a first self-locking member (42) hinged to the first pillar (41), and a first restoring member (43), the first self-locking member (42) being provided with a first locking portion (421), the first locking portion (421) being cooperatively inserted into one of the first self-locking grooves (701), and the first restoring member (43) being connected between the first pillar (41) and the self-locking plate (2); When the sprocket (3) rotates in the first direction, the first locking portion (421) disengages from the first self-locking groove (701) and causes the first reset member (43) to be compressed, and the first locking portion (421) is driven to cooperate and insert into the next adjacent first self-locking groove (701) under the action of the first reset member (43).

4. The two-way self-locking structure according to claim 3, characterized in that: The second self-locking assembly (5) comprises a second pillar (51) connected to the self-locking plate (2), a second self-locking member (52) hinged to the second pillar (51), and a second reset member (53), the second self-locking member (52) being provided with a second locking portion (521), the second locking portion (521) being cooperatively inserted into one of the second self-locking grooves (702), and the second reset member (53) being connected between the second pillar (51) and the self-locking plate (2); When the sprocket (3) rotates in the second direction, the second locking portion (521) disengages from the second self-locking groove (702) and causes the second reset member (53) to be compressed, and the second locking portion (521) is driven to cooperate and insert into the next adjacent second self-locking groove (702) under the action of the second reset member (53).

5. The two-way self-locking structure according to claim 4, characterized in that: The self-locking plate (2) is provided with a positioning groove (201), the first position and the second position are arranged in the positioning groove (201), and the switching member (6) is provided with a positioning portion (61), and the positioning portion (61) is inserted into the positioning groove (201); When the positioning portion (61) is located at the first position, one end of the positioning portion (61) abuts against the first self-locking member (42), so that the sprocket (3) rotates in a first direction; When the positioning portion (61) is located at the second position, the other end of the positioning portion (61) abuts against the second self-locking member (52), so that the sprocket (3) rotates in the second direction.

6. The two-way self-locking structure according to claim 2, characterized in that: The self-locking disc (7) comprises a first ratchet disc (71) mounted on the self-locking plate (2) and a second ratchet disc (72) connected to the first ratchet disc (71); the first ratchet disc (71) and the second ratchet disc (72) are arranged in parallel; the first self-locking groove (701) is arranged on the first ratchet disc (71); and the second self-locking groove (702) is arranged on the second ratchet disc (72).

7. The two-way self-locking structure according to claim 1, characterized in that: The switching member (6) is connected to a rotating rod (8), one end of the rotating rod (8) passes through the base (1), and a bearing is installed at the connection between the base (1) and the rotating rod (8).

8. The two-way self-locking structure according to claim 7, characterized in that: One end of the rotating rod (8) is connected to a driving shaft (81), and the driving shaft (81) is connected to a handle (82).

9. The two-way self-locking structure according to claim 8, characterized in that: The handle (82) is provided with an insertion interface (821), and the driving shaft (81) is provided with an insertion portion (811), and the insertion portion (811) cooperates with the insertion interface (821).

10. The two-way self-locking structure according to claim 2, characterized in that: The self-locking disk (7) is installed with a protective cover (73), and the switching member (6), the first self-locking component (4) and the second self-locking component (5) are located inside the protective cover (73).

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