Unlockable linkage apparatus and conveying device

Abstract

The present application relates an unlockable linkage apparatus and a conveying device. The unlockable linkage apparatus comprises a transmitting member, a locking member, and a positioning member; the locking member is provided with a locking part matching an object being transmitted; the positioning member and the locking member move to or away from a butt joint position in a first direction; the positioning member is provided with a positioning part for positioning said object; when the positioning member and the locking member are in the butt joint position, the positioning member moves, in a second direction, towards the side where the locking part is located, the locking part is separated from said object, and the positioning part matches said object. According to the unlockable linkage apparatus and the conveying device in the present application, when the locking member matches said object, the transmitting member can quickly drive the locking member to move without slipping, and the locking member and said object can be conveniently matched and unlocked, thereby improving the production takt time of the conveying device, thus improving the production efficiency.

Description

Unlockable linkage and conveying equipment Technical Field

[0001] The present application relates to the field of conveying technology, and in particular to an unlockable linkage device and conveying equipment. Background Art

[0002] In automated production lines such as those in automotive welding shops, when a reciprocating drive unit is used to drive and transport workpiece carriers, the connection between the drive unit and the drive hook of the driven part must be movable. That is, when a carrier needs to be transported, the drive unit and the drive hook are clamped and locked, and the carrier is transported through rigid contact; when the carrier is transported to its place, the clamping state between the drive hook and the drive unit needs to be disengaged, so that the drive unit can return to transport the next carrier. In this way, the same drive unit can be used to reciprocate to drag different workpiece carriers forward.

[0003] The X-axis positioning of the workpiece carrier facilitates the automated operation of the workpiece on the one hand; on the other hand, the workpiece carrier is precisely positioned so that the external drive unit and the drive hook can smoothly engage, clamp, and disengage to unlock, facilitating smooth movement of the mechanism.

[0004] However, the current conveying equipment in the relevant technical field mainly relies on gravity fitting and adopts the rolling friction of friction wheels to drive the conveying. The conveying speed will be limited by the friction limit. After reaching a certain speed, it will slip and cannot reach a higher speed, which limits the improvement of the production rhythm of the conveying equipment.

[0005] Summary of the Invention

[0006] Based on this, an unlockable linkage device and conveying equipment are provided to solve the problem of how to improve the production rhythm of the conveying equipment.

[0007] In one aspect, the present application provides an unlockable linkage device, comprising:

[0008] conveyor;

[0009] a locking member movably connected to the transmission member and moving along a first direction under the drive of the transmission member, the locking member having a locking portion that cooperates with a transmitted object; and

[0010] A positioning member is arranged on a path along which the locking member moves along with the conveying member, so that the locking member moves along a first direction to or away from a docking position of the positioning member; the positioning member has a positioning portion for positioning the transmitted object, and when the positioning member and the locking member are in the docking position, the positioning member moves along the second direction toward the side where the locking portion is located, the locking portion disengages from the transmitted object, and the positioning portion cooperates with the transmitted object.

[0011] The unlockable linkage device utilizes a locking member disposed on a transmission member to engage with a transmitted object, allowing the transmission member to drive the transmitted object to move in a first direction. When the locking member moves with the transmission member in the first direction to a position where it engages with the positioning member, the positioning portion and the locking portion become opposed to each other, and the positioning member moves in a second direction toward the side of the locking portion, causing the locking portion to disengage from the transmitted object and engaging the positioning portion with the transmitted object. Thus, while the locking portion and the transmitted object are released, the positioning portion is engaged with the transmitted object. Because the unlockable linkage device achieves an unlockable connection between the locking member and the transmitted object through movement of the positioning member in the second direction, the transmission member can quickly drive the locking member to move without slipping when the locking member and the transmitted object are engaged. This overcomes the problem in related art where conveying is driven by the rolling friction of a friction wheel, where the conveying speed is limited by the friction limit and slips after reaching a certain speed, preventing higher speeds. Furthermore, the positioning member can be used to quickly release the engagement between the locking member and the transmitted object, thereby improving production efficiency.

[0012] In one embodiment, the locking member is slidably connected to the conveying member, and the locking member is connected to an elastic member, and the elastic member is used to drive the locking member to reset relative to the conveying member toward the side where the positioning member is located.

[0013] In one embodiment, the elastic member includes a spring, and when the positioning member and the locking member are in the docking position, the locking member is pressed against the positioning member under the elastic force of the spring.

[0014] In one embodiment, a supporting surface adjacent to the positioning portion is formed on the side of the positioning member facing the locking member, and a rolling member is provided on the locking member. When the positioning member and the locking member are in the docking position and the positioning member moves toward the locking portion along the second direction, the locking member rolls in contact with the supporting surface through the rolling member under the action of the elastic force of the spring.

[0015] In one embodiment, there are multiple rolling elements, and the positions of the multiple rolling elements on the locking element are located on two opposite sides of the position of the locking portion.

[0016] In one embodiment, the abutting surface includes planes adjacent to both sides of the positioning portion and inclined surfaces adjacent to the planes. When the positioning member and the locking member move toward the docking position, the inclined surfaces guide the rolling member to roll to the planes.

[0017] In one embodiment, the locking portion and the positioning portion are grooves, the rolling element includes a first rolling element and a second rolling element located on both sides of the locking portion, and the distance between the first rolling element and the second rolling element is less than the length of the plane in the first direction.

[0018] In one embodiment, a first driving member is included, which is arranged between the transmission member and the locking member and is used to drive the locking member to approach or move away from the transmitted object, so that the locking member and the transmitted object cooperate or disengage from each other.

[0019] In one embodiment, a second driving member is included, and the second driving member is used to drive the positioning member to move, so that the positioning member and the driven object are matched or disengaged from each other.

[0020] In one embodiment, it further includes a slide and a guide member, the positioning member is installed at one end of the slide close to the locking member, the second driving member is linked to the slide and is used to drive the slide to move along the guide member, and the guide member is set along the second direction.

[0021] In one embodiment, the first direction is perpendicular to the second direction, and the unlockable linkage device further includes a plurality of sliding rods, which are used for sliding connection between the locking member and the transmission member, and the extension direction of the sliding rod is perpendicular to the first direction, and the extension direction of the sliding rod is the same as or perpendicular to the second direction.

[0022] On the other hand, the present application provides a conveying device, including a moving mechanism and an unlockable linkage device as described above, wherein the conveying device is used to transport a carrier, the carrier is connected to the transmitted object, the moving mechanism is connected to the conveying member, and is used to drive the conveying member to move along the first direction.

[0023] The above-mentioned conveying equipment can realize automated and streamlined loading and unloading of carriers at the positioning parts because the moving mechanism can drive the conveying parts of the unlockable linkage device to move along the first direction. In addition, the positioning parts of the unlockable linkage device are moved in the second direction to conveniently release the cooperation between the locking part and the transmitted object, thereby realizing efficient transmission of carriers by the conveying equipment, improving the production rhythm of the conveying equipment, and thus improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0025] FIG1 is a schematic structural diagram of an unlockable linkage device according to an embodiment of the present application in a docking position, with the locking portion cooperating with the transmitted object.

[0026] FIG2 is a schematic structural diagram of the unlockable linkage device according to one embodiment of the present application in the docking position, when the positioning portion cooperates with the transmitted object.

[0027] FIG3 is a schematic structural diagram of an unlockable linkage device according to an embodiment of the present invention, in which the transmission member drives the locking member to move away from the docking position.

[0028] Explanation of the accompanying drawings: 100, unlockable linkage device; 10, transmission member; 10a, slide rod; 20, locking member; 20a, locking portion; 30, positioning member; 30a, positioning portion; 31, abutting surface; 31a, plane; 31b, inclined surface; 40, elastic member; 50, support rod; 60, rolling member; 60a, first rolling member; 60b, second rolling member; 70, telescopic cylinder; 80, slide seat; 90, guide member; W, transmitted object. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0031] The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions are for illustrative purposes only and do not represent the only implementations.

[0032] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0033] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0034] As shown in Figures 1 to 3, an unlockable linkage device 100 provided in one embodiment of the present application includes a transmission member 10, a locking member 20, and a positioning member 30. The locking member 20 is movably connected to the transmission member 10 and can move in a first direction under the drive of the transmission member 10. The locking member 20 has a locking portion 20a that cooperates with the transmitted object W. Therefore, the locking portion 20a cooperates with the transmitted object W, so that when the transmission member 10 drives the locking member 20 to move in the first direction, the transmitted object W can move in the first direction together with the locking portion 20a of the locking member 20. The positioning member 30 is arranged on the path along which the locking member 20 moves with the transmission member 10, so that the locking member 20 can move in the first direction to or away from the docking position of the positioning member 30. The positioning member 30 has a positioning portion 30a that positions the transmitted object W.

[0035] It should be noted that the docking position refers to the position of the locking portion 20a and the positioning portion 30a when transferring the transmitted object W. In this position, the transmitted object W can be transferred from the locking portion 20a to the positioning portion 30a, or vice versa. Specifically, when the positioning member 30 and the locking member 20 are in the docking position, the positioning portion 30a is opposite the locking portion 20a, and the positioning member 30 moves along the second direction toward the locking portion 20a. The locking portion 20a is disengaged from the transmitted object W, and the positioning portion 30a is engaged with the transmitted object W.

[0036] The above-mentioned unlockable linkage device 100 utilizes the locking member 20 provided on the transmission member 10 to cooperate with the transmitted object W, so that the transmission member 10 can drive the transmitted object W to move along the first direction. When the locking member 20 moves along the transmission member 10 along the first direction to a docking position with the positioning member 30, the positioning portion 30a is opposite to the locking portion 20a. The positioning member 30 is utilized to move along the second direction toward the side where the locking portion 20a is located, so that the locking portion 20a is disengaged from the transmitted object W and the positioning portion 30a cooperates with the transmitted object W. In this way, while the cooperation between the locking portion 20a and the transmitted object W is released, the positioning of the transmitted object W is achieved. Since in the unlockable linkage device 100, the unlockable connection between the locking member 20 and the transmitted object W is achieved by the movement of the positioning member 30 in the second direction, when the locking member 20 is engaged with the transmitted object W, the transmission member 10 can drive the transmitted object W to move by quickly driving the locking member 20, thereby avoiding the situation where the transmitted object W is driven by friction and slips, thereby solving the problem in the related art that the conveying speed is limited by the friction limit when the friction wheel is driven by rolling friction, and slips after reaching a certain speed and cannot reach a higher speed. In addition, the positioning member 30 can be used to quickly release the engagement between the locking member 20 and the transmitted object W, thereby helping to improve production efficiency.

[0037] In some embodiments, the locking member 20 is slidably connected to the conveying member 10, and is connected to an elastic member 40. The elastic member 40 is used to drive the locking member 20 to return relative to the conveying member 10 toward the side where the positioning member 30 is located. In this way, when the locking member 20 moves to a position opposite to the conveyed object W, the locking portion 20a can engage with the conveyed object W.

[0038] Specifically, the elastic member 40 includes a spring. When the positioning member 30 and the locking member 20 are in the mating position, the locking member 20 is abutted against the positioning member 30 under the elastic force of the spring. When the positioning member 30 moves in the second direction toward the side where the locking portion 20a is located, the positioning member 30 overcomes the elastic force of the spring and pushes the locking member 20, causing the locking portion 20a to separate from the transmitted object W. When the positioning member 30 moves in the second direction away from the locking portion 20a, the spring forces the locking member 20 to return, causing the locking portion 20a to engage with the transmitted object W.

[0039] Furthermore, a support rod 50 is provided inside the spring to ensure that the spring remains stable when compressed and deformed, thereby preventing the spring from deflecting to one side and causing a decrease in elastic performance.

[0040] Continuing with FIG1 , the positioning member 30 has an abutting surface 31 formed on the side facing the locking member 20, and the positioning portion 30a is adjacent to the abutting surface 31. A rolling member 60 is provided on the locking member 20. When the positioning member 30 and the locking member 20 are in the docked position and the positioning member 30 moves toward the locking portion 20a in the second direction, the locking member 20, under the elastic force of the spring, rolls against the abutting surface 31 via the rolling member 60, thereby reducing friction between the structural components and enabling flexible movement between the locking member 20 and the positioning member 30 without causing any jamming.

[0041] The rolling element 60 can be a wheel, a shaft, or a bearing. The type of rolling element 60 is not limited herein. In some embodiments, there are multiple rolling elements 60, for example, two or more. The multiple rolling elements 60 are positioned on opposite sides of the locking portion 20a on the locking element 20 to balance the resisting forces between the locking element 20 and the positioning element 30 at their respective locations, ensuring smooth and reliable relative movement between the locking element 20 and the positioning element 30.

[0042] Furthermore, the abutting surface 31 includes flat surfaces 31a adjacent to both sides of the positioning portion 30a and inclined surfaces 31b adjacent to the flat surfaces 31a. When the positioning member 30 and the locking member 20 move toward the docking position, the inclined surfaces 31b guide the rolling member 60 to roll toward the flat surfaces 31a. In this embodiment, the guiding effect of the inclined surfaces 31b on the rolling member 60 ensures smoother relative movement between the locking member 20 and the positioning member 30 when the locking member 20 moves back toward the docking position after moving away from the docking position in the first direction.

[0043] It should be noted that the locking portion 20a and the positioning portion 30a only need to be able to cooperate with the transmitted object W and achieve a linkage connection in the first direction when cooperating with the transmitted object W. Specifically, when the locking portion 20a cooperates with the transmitted object W, it can drive the transmitted object W to move synchronously along the first direction. When the positioning portion 30a cooperates with the transmitted object W, the positioning portion 30a can limit the transmitted object W in the first direction, preventing the transmitted object W from moving along the first direction, thereby facilitating the processing of the corresponding workpiece at the corresponding workstation. For example, the transmitted object W is part of a carrier or is connected to the carrier. When the carrier is used to load a workpiece to be processed, such as a vehicle frame or door, the positioning portion 30a's limiting effect on the transmitted object W will keep the workpiece in a positioned state, thereby ensuring repeatable positioning accuracy during workpiece transportation. In other words, each time the carrier loads a workpiece and cooperates with the positioning portion 30a, the position of the workpiece will not shift under the positioning of the positioning portion 30a. Correspondingly, after the processing of the workpiece is completed, when the workpiece needs to be moved away from this position, the locking part only needs to be moved to the docking position, and the positioning part 30 is moved along the second direction so that the locking part and the transmitted object W are re-matched. At this time, the transmission part 10 can be used to move the locking part along the first direction to move the carrier away from the docking position to enter the next workstation for subsequent processing.

[0044] Continuing with FIG. 1 , in some embodiments, both the locking portion 20a and the positioning portion 30a are grooves. In this embodiment, the object W to be transmitted can be a latch that fits within the grooves, or it can be a wheel. As will be appreciated, using a wheel as the object W can reduce friction during mating, thereby facilitating smoother mating.

[0045] Furthermore, the rolling element 60 includes a first rolling element 60a and a second rolling element 60b located on either side of the locking portion 20a. The distance between the first rolling element 60a and the second rolling element 60b is less than the length of the plane 31a in the first direction, thereby preventing the first rolling element 60a or the second rolling element 60b from sinking into the positioning portion 30a, thereby improving the smoothness of the relative movement of the locking member 20 and the positioning member 30 in the first direction.

[0046] It should be noted that the locking member 20 can utilize the elastic member 40 to achieve the reset movement so as to cooperate with the transmitted object W. In some embodiments, the elastic member 40 can also be replaced by other elements that can provide power. Exemplarily, the unlockable linkage device 100 includes a first driving member (not shown in the figure), which is arranged between the transmission member 10 and the locking member 20, and the first driving member is used to drive the locking member 20 close to the transmitted object W or away from the transmitted object W, so that the locking member 20 and the transmitted object W are matched or disengaged from each other. The first driving member can be a pneumatic cylinder or an electric cylinder, or a linear motor. There is no limitation on the type of the first driving member, as long as it can drive the locking member 20 close to or away from the transmitted object W, and realize the matching and dismatching of the locking member 20 and the transmitted object W.

[0047] In some embodiments, the unlockable linkage device 100 includes a second driving member configured to drive the positioning member 30 to move, thereby causing the positioning member 30 to engage with or disengage from the driven object W. In this embodiment, the second driving member drives the positioning member 30 to move in the second direction, that is, the positioning member 30 engages with or disengages from the driven object W in the second direction.

[0048] The second driving member may have the same structure as the first driving member, or may have a different structure.

[0049] Continuing with FIG. 1 , in some embodiments, the unlockable linkage device 100 further includes a slide 80 and a guide member 90 . The positioning member 30 is mounted on an end of the slide 80 proximate to the locking member 20 . A second driving member is linked to the slide 80 and configured to drive the slide 80 along the guide member 90 , which is disposed along the second direction. In this embodiment, the slide 80 slides along the guide member 90 to enhance the stability of the positioning member 30 in the second direction. It will be appreciated that the slide 80 and the guide member 90 can be slidably engaged in various ways. For example, the guide member 90 may be a slide rail, with the slide 80 slidably engaging the slide rail. Alternatively, the guide member 90 may be a guide rod disposed through the slide 80 .

[0050] In the following, the second driving member is an example of a telescopic cylinder 70. The telescopic rod of the telescopic cylinder 70 is connected to the slide 80. The telescopic movement of the telescopic rod drives the slide 80 to move along the guide member 90, thereby causing the positioning member 30 on the slide 80 to move along the guide member 90. Since the guide member 90 is arranged along the second direction, the positioning member 30 moves along the second direction.

[0051] It should be noted that, in some embodiments, the first direction is perpendicular to the second direction. It is understandable that, when establishing a three-dimensional coordinate system based on the posture of the unlockable linkage device 100 when in use, the first direction can be the X-axis direction, and the second direction can be the Y-axis direction or the Z-axis direction. In other words, the locking member 20 can be moved relative to the positioning member 30 along the X-axis direction to or from the docking position. Accordingly, the positioning member 30 can move along the Y-axis direction or along the Z-axis direction. As long as the positioning member 30 can be used to move in the second direction to disengage the locking portion 20a from the transmitted object W while the positioning portion 30a engages with the transmitted object W, the positioning member 30 can be used to position the transmitted object W.

[0052] In some embodiments, the unlockable linkage device 100 further includes a plurality of slide bars 10 a, through which the locking member 20 is slidably connected to the transmission member 10. The slide bars 10 a extend perpendicularly to the first direction and are aligned with or perpendicular to the second direction. This structural arrangement allows for smooth sliding movement between the locking member 20 and the transmission member 10, facilitating engagement and disengagement of the locking member 20 with the transmitted object W.

[0053] Based on any of the above-described unlockable linkage devices 100, another embodiment of the present application provides a conveying device that, in addition to the unlockable linkage device 100, also includes a moving mechanism. It should be noted that the conveying device is used to transport a carrier connected to a transported object W. In this embodiment, the moving mechanism is connected to a conveying member 10 and is used to drive the conveying member 10 to move in a first direction.

[0054] Because the moving mechanism can drive the conveying member 10 of the unlockable linkage device 100 to move in the first direction, automated and streamlined loading and unloading of carriers at the positioning member 30 can be achieved. The positioning member 30 can be moved in the second direction to conveniently release the engagement between the locking portion 20a and the conveyed object W, enabling efficient carrier transfer by the conveying equipment, improving the production cycle of the conveying equipment, and thereby increasing production efficiency.

[0055] For ease of understanding, the working principles of the unlockable linkage device 100 according to some embodiments are described below.

[0056] As shown in Figure 1, the first direction is the X direction and the second direction is the Y direction. The moving mechanism locks the transmitted object W (for example, the wheel body provided at the bottom of the carrier) through the locking member 20, thereby driving the carrier to move along the X direction. When the moving mechanism drives the carrier to stop at the corresponding workstation, the carrier can be positioned if necessary. Before positioning, the locking member 20 cooperates with the transmitted object W. As shown in Figure 2, during positioning, the cylinder rod of the telescopic cylinder 70 (i.e., the second driving member) retracts to drive the positioning member 30 to move along the Y direction. At this time, the positioning member 30 will abut the rolling member 60, causing the locking member 20 to move away from the transmitted object W. At the same time, the transmitted object W moves out of the locking portion 20a and enters the positioning position of the positioning member 30. In an embodiment in which the locking member 20 is connected to the elastic member 40, the locking member 20 compresses the elastic member 40 under the guidance of the guide member 90, and finally presents the position shown in Figure 2. This process completes the X-axis positioning and releases the locking member 20 from the linkage connection with the driven object W. It should be noted that when the elastic member 40 is a compression spring, the compression spring is in a compressed state, the rolling member 60 contacts the positioning member 30, and the driven object W is locked by the positioning portion 30a of the positioning member 30. In embodiments where the positioning portion 30a is a groove, the driven object W is located within the groove of the positioning portion 30a and does not protrude from the positioning portion 30a.

[0057] After completing X-axis positioning and unlocking, the moving mechanism can return to drive the other carriers. During the departure, as shown in Figure 3 , the rolling element 60, under the action of the elastic member 40, maintains contact with the positioning member 30 until it is completely released. The elastic member 40 gradually recovers its deformation, causing the locking member 20 to return to its original position. That is, the locking member 20, under the elastic force of the elastic member 40, returns to the side extending toward the positioning member 30.

[0058] After the work is completed at the workstation, when the carrier needs to leave, the locking portion 20a needs to be re-matched with the transmitted object W located at the positioning portion 30a. This process is the reverse operation of the above process and will not be described in detail here.

[0059] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above embodiments merely illustrate several implementation methods of the present application, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the inventive concept of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An unlockable linkage device, characterized in that: include: Conveying member (10); A locking member (20) is movably connected to the transmission member (10) and moves along a first direction driven by the transmission member (10), wherein the locking member (20) has a locking portion (20a) that matches with a transmitted object (W); and A positioning member (30) is arranged on a path along which the locking member (20) moves with the conveying member (10), so that the locking member (20) moves along a first direction to or away from a docking position of the positioning member (30); the positioning member (30) has a positioning portion (30a) for positioning the transmitted object (W); when the positioning member (30) and the locking member (20) are in the docking position, the positioning member (30) moves along a second direction toward a side where the locking portion (20a) is located, the locking portion (20a) is separated from the transmitted object (W), and the positioning portion (30a) cooperates with the transmitted object (W).

2. The unlockable linkage device according to claim 1, characterized in that: The locking member (20) is slidably connected to the conveying member (10), and the locking member (20) is connected to an elastic member (40), and the elastic member (40) is used to drive the locking member (20) to reset relative to the conveying member (10) toward the side where the positioning member (30) is located.

3. The unlockable linkage device according to claim 2, characterized in that: The elastic member (40) comprises a spring, and when the positioning member (30) and the locking member (20) are in the docking position, the locking member (20) is pressed against the positioning member (30) under the elastic force of the spring.

4. The unlockable linkage device according to claim 3, characterized in that: A supporting surface (31) adjacent to the positioning portion (30a) is formed on one side of the positioning member (30) facing the locking member (20), and a rolling member (60) is provided on the locking member (20). When the positioning member (30) and the locking member (20) are in the docking position and the positioning member (30) moves toward the locking portion (20a) along the second direction, the locking member (20) rolls in contact with the supporting surface (31) through the rolling member (60) under the elastic force of the spring.

5. The unlockable linkage device according to claim 4, characterized in that: There are a plurality of rolling elements (60), and the positions of the plurality of rolling elements (60) on the locking element (20) are located on two opposite sides of the position where the locking portion (20a) is located.

6. The unlockable linkage device according to claim 5, characterized in that: The abutting surface (31) comprises planes (31a) adjacent to both sides of the positioning portion (30a) and inclined surfaces (31b) adjacent to the planes (31a); when the positioning member (30) and the locking member (20) move toward a docking position, the inclined surfaces (31b) guide the rolling member (60) to roll to the planes (31a).

7. The unlockable linkage device according to claim 6, characterized in that: The locking portion (20a) and the positioning portion (30a) are grooves, the rolling element (60) comprises a first rolling element (60a) and a second rolling element (60b) located on both sides of the locking portion (20a), and the distance between the first rolling element (60a) and the second rolling element (60b) is smaller than the length of the plane (31a) in the first direction.

8. The unlockable linkage device according to claim 1, characterized in that: The invention comprises a first driving member, which is arranged between the transmission member (10) and the locking member (20) and is used to drive the locking member (20) to approach or move away from the transmitted object (W), so that the locking member (20) and the transmitted object (W) cooperate with or disengage from each other.

9. The unlockable linkage device according to claim 1, characterized in that: It comprises a second driving member, which is used to drive the positioning member (30) to move, so that the positioning member (30) and the driven object (W) are matched or separated from each other.

10. The unlockable linkage device according to claim 9, characterized in that: It also includes a slide seat (80) and a guide member (90), the positioning member (30) is installed on one end of the slide seat (80) close to the locking member (20), the second driving member is linked to the slide seat (80) and is used to drive the slide seat (80) to move along the guide member (90), and the guide member (90) is arranged along the second direction.

11. The unlockable linkage device according to claim 1, characterized in that: The first direction is perpendicular to the second direction. The unlockable linkage device (100) further comprises a plurality of slide bars (10a). The plurality of slide bars (10a) are used for slidingly connecting the locking member (20) and the transmission member (10). The extension direction of the slide bars (10a) is perpendicular to the first direction. The extension direction of the slide bars (10a) is the same as or perpendicular to the second direction.

12. A conveying device, characterized in that: It comprises a moving mechanism and an unlockable linkage device (100) as described in any one of claims 1 to 11, wherein the conveying device is used to transport a carrier, the carrier is connected to the transmitted object (W), and the moving mechanism is connected to the conveying member (10) and is used to drive the conveying member (10) to move along the first direction.

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